flake: Remove standalone execution of test cases

This is now executed as part of cargo test.

.clang-format

@@ -1,32 +0,0 @@
-BasedOnStyle: LLVM
-
-Language: Cpp
-Standard: Cpp11
-
-AccessModifierOffset: -1
-AlignEscapedNewlines: Left
-AlwaysBreakAfterReturnType: None
-AlwaysBreakTemplateDeclarations: Yes
-AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortFunctionsOnASingleLine: Inline
-BinPackParameters: false
-BreakBeforeBinaryOperators: NonAssignment
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializers: AfterColon
-BreakInheritanceList: AfterColon
-ColumnLimit: 120
-ConstructorInitializerAllOnOneLineOrOnePerLine: true
-ContinuationIndentWidth: 4
-DerivePointerAlignment: false
-IndentCaseLabels: true
-IndentPPDirectives: None
-IndentWidth: 4
-MaxEmptyLinesToKeep: 1
-PointerAlignment: Left
-ReflowComments: true
-SortIncludes: false
-SortUsingDeclarations: true
-SpaceAfterTemplateKeyword: false
-SpacesBeforeTrailingComments: 2
-TabWidth: 4
-UseTab: Never

.clippy.toml

@@ -1 +0,0 @@
-doc-valid-idents = ["CPython", "NumPy", ".."]

.gitignore

@@ -1,4 +1,3 @@
 __pycache__
 /target
-/nac3standalone/demo/linalg/target
 nix/windows/msys2

.pre-commit-config.yaml

@@ -1,24 +0,0 @@
-# See https://pre-commit.com for more information
-# See https://pre-commit.com/hooks.html for more hooks
-
-default_stages: [pre-commit]
-
-repos:
-  - repo: local
-    hooks:
-      - id: nac3-cargo-fmt
-        name: nac3 cargo format
-        entry: nix
-        language: system
-        types: [file, rust]
-        pass_filenames: false
-        description: Runs cargo fmt on the codebase.
-        args: [develop, -c, cargo, fmt, --all]
-      - id: nac3-cargo-clippy
-        name: nac3 cargo clippy
-        entry: nix
-        language: system
-        types: [file, rust]
-        pass_filenames: false
-        description: Runs cargo clippy on the codebase.
-        args: [develop, -c, cargo, clippy, --tests]

Cargo.toml

@@ -4,7 +4,6 @@ members = [
   "nac3ast",
   "nac3parser",
   "nac3core",
-  "nac3core/nac3core_derive",
   "nac3standalone",
   "nac3artiq",
   "runkernel",

README.md

@@ -51,12 +51,3 @@ Use ``nix develop`` in this repository to enter a development shell.
 If you are using a different shell than bash you can use e.g. ``nix develop --command fish``.
 
 Build NAC3 with ``cargo build --release``. See the demonstrations in ``nac3artiq`` and ``nac3standalone``.
-
-### Pre-Commit Hooks
-
-You are strongly recommended to use the provided pre-commit hooks to automatically reformat files and check for non-optimal Rust practices using Clippy. Run `pre-commit install` to install the hook and `pre-commit` will automatically run `cargo fmt` and `cargo clippy` for you.
-
-Several things to note:
-
-- If `cargo fmt` or `cargo clippy` returns an error, the pre-commit hook will fail. You should fix all errors before trying to commit again.
-- If `cargo fmt` reformats some files, the pre-commit hook will also fail. You should review the changes and, if satisfied, try to commit again.

flake.lock

@@ -2,16 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1731319897,
+        "lastModified": 1701389149,
-        "narHash": "sha256-PbABj4tnbWFMfBp6OcUK5iGy1QY+/Z96ZcLpooIbuEI=",
+        "narHash": "sha256-rU1suTIEd5DGCaAXKW6yHoCfR1mnYjOXQFOaH7M23js=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dc460ec76cbff0e66e269457d7b728432263166c",
+        "rev": "5de0b32be6e85dc1a9404c75131316e4ffbc634c",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -1,12 +1,11 @@
 {
   description = "The third-generation ARTIQ compiler";
 
-  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-unstable;
+  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-23.11;
 
   outputs = { self, nixpkgs }:
     let
       pkgs = import nixpkgs { system = "x86_64-linux"; };
-      pkgs32 = import nixpkgs { system = "i686-linux"; };
     in rec {
       packages.x86_64-linux = rec {
         llvm-nac3 = pkgs.callPackage ./nix/llvm {};
@@ -16,22 +15,6 @@
           ln -s ${pkgs.llvmPackages_14.clang-unwrapped}/bin/clang $out/bin/clang-irrt
           ln -s ${pkgs.llvmPackages_14.llvm.out}/bin/llvm-as $out/bin/llvm-as-irrt
           '';
-        demo-linalg-stub = pkgs.rustPlatform.buildRustPackage {
-          name = "demo-linalg-stub";
-          src = ./nac3standalone/demo/linalg;
-          cargoLock = {
-            lockFile = ./nac3standalone/demo/linalg/Cargo.lock;
-          };
-          doCheck = false;
-        };
-        demo-linalg-stub32 = pkgs32.rustPlatform.buildRustPackage {
-          name = "demo-linalg-stub32";
-          src = ./nac3standalone/demo/linalg;
-          cargoLock = {
-            lockFile = ./nac3standalone/demo/linalg/Cargo.lock;
-          };
-          doCheck = false;
-        };
         nac3artiq = pkgs.python3Packages.toPythonModule (
           pkgs.rustPlatform.buildRustPackage rec {
             name = "nac3artiq";
@@ -41,19 +24,15 @@
               lockFile = ./Cargo.lock;
             };
             passthru.cargoLock = cargoLock;
-            nativeBuildInputs = [ pkgs.python3 (pkgs.wrapClangMulti pkgs.llvmPackages_14.clang) llvm-tools-irrt pkgs.llvmPackages_14.llvm.out llvm-nac3 ];
+            nativeBuildInputs = [ pkgs.python3 pkgs.llvmPackages_14.clang llvm-tools-irrt pkgs.llvmPackages_14.llvm.out llvm-nac3 ];
             buildInputs = [ pkgs.python3 llvm-nac3 ];
             checkInputs = [ (pkgs.python3.withPackages(ps: [ ps.numpy ps.scipy ])) ];
             checkPhase =
               ''
-              echo "Checking nac3standalone demos..."
+              echo "Running Cargo tests..."
               pushd nac3standalone/demo
               patchShebangs .
-              export DEMO_LINALG_STUB=${demo-linalg-stub}/lib/liblinalg.a
-              export DEMO_LINALG_STUB32=${demo-linalg-stub32}/lib/liblinalg.a
-              ./check_demos.sh -i686
               popd
-              echo "Running Cargo tests..."
               cargoCheckHook
               '';
             installPhase =
@@ -107,18 +86,18 @@
             (pkgs.fetchFromGitHub {
               owner = "m-labs";
               repo = "sipyco";
-              rev = "094a6cd63ffa980ef63698920170e50dc9ba77fd";
+              rev = "939f84f9b5eef7efbf7423c735d1834783b6140e";
-              sha256 = "sha256-PPnAyDedUQ7Og/Cby9x5OT9wMkNGTP8GS53V6N/dk4w=";
+              sha256 = "sha256-15Nun4EY35j+6SPZkjzZtyH/ncxLS60KuGJjFh5kSTc=";
             })
             (pkgs.fetchFromGitHub {
               owner = "m-labs";
               repo = "artiq";
-              rev = "28c9de3e251daa89a8c9fd79d5ab64a3ec03bac6";
+              rev = "8b4572f9cad34ac0c2b6f6bba9382e7b59b2f93b";
-              sha256 = "sha256-vAvpbHc5B+1wtG8zqN7j9dQE1ON+i22v+uqA+tw6Gak=";
+              sha256 = "sha256-O/0sUSxxXU1AL9cmT9qdzCkzdOKREBNftz22/8ouQcc=";
             })
           ];
           buildInputs = [
-            (python3-mimalloc.withPackages(ps: [ ps.numpy ps.scipy ps.jsonschema ps.lmdb ps.platformdirs nac3artiq-instrumented ]))
+            (python3-mimalloc.withPackages(ps: [ ps.numpy ps.scipy ps.jsonschema ps.lmdb nac3artiq-instrumented ]))
             pkgs.llvmPackages_14.llvm.out
           ];
           phases = [ "buildPhase" "installPhase" ];
@@ -168,7 +147,7 @@
         buildInputs = with pkgs; [
           # build dependencies
           packages.x86_64-linux.llvm-nac3
-          (pkgs.wrapClangMulti llvmPackages_14.clang) llvmPackages_14.llvm.out  # for running nac3standalone demos
+          llvmPackages_14.clang  # demo
           packages.x86_64-linux.llvm-tools-irrt
           cargo
           rustc
@@ -178,14 +157,8 @@
           # development tools
           cargo-insta
           clippy
-          pre-commit
           rustfmt
         ];
-        shellHook =
-          ''
-          export DEMO_LINALG_STUB=${packages.x86_64-linux.demo-linalg-stub}/lib/liblinalg.a
-          export DEMO_LINALG_STUB32=${packages.x86_64-linux.demo-linalg-stub32}/lib/liblinalg.a
-          '';
       };
       devShells.x86_64-linux.msys2 = pkgs.mkShell {
         name = "nac3-dev-shell-msys2";

nac3artiq/Cargo.toml

@@ -9,13 +9,18 @@ name = "nac3artiq"
 crate-type = ["cdylib"]
 
 [dependencies]
-itertools = "0.13"
+itertools = "0.12"
-pyo3 = { version = "0.21", features = ["extension-module", "gil-refs"] }
+pyo3 = { version = "0.20", features = ["extension-module"] }
 parking_lot = "0.12"
-tempfile = "3.13"
+tempfile = "3.8"
+nac3parser = { path = "../nac3parser" }
 nac3core = { path = "../nac3core" }
 nac3ld = { path = "../nac3ld" }
 
+[dependencies.inkwell]
+version = "0.2"
+default-features = false
+features = ["llvm14-0", "target-x86", "target-arm", "target-riscv", "no-libffi-linking"]
+
 [features]
 init-llvm-profile = []
-no-escape-analysis = ["nac3core/no-escape-analysis"]

nac3artiq/demo/list_cmp.py

@@ -1,24 +0,0 @@
-from min_artiq import *
-from numpy import int32
-
-
-@nac3
-class EmptyList:
-    core: KernelInvariant[Core]
-
-    def __init__(self):
-        self.core = Core()
-
-    @rpc
-    def get_empty(self) -> list[int32]:
-        return []
-
-    @kernel
-    def run(self):
-        a: list[int32] = self.get_empty()
-        if a != []:
-            raise ValueError
-
-
-if __name__ == "__main__":
-    EmptyList().run()

nac3artiq/demo/min_artiq.py

@@ -112,15 +112,10 @@ def extern(function):
     register_function(function)
     return function
 
-
+def rpc(function):
-def rpc(arg=None, flags={}):
+    """Decorates a function declaration defined by the core device runtime."""
-    """Decorates a function or method to be executed on the host interpreter."""
+    register_function(function)
-    if arg is None:
+    return function
-        def inner_decorator(function):
-            return rpc(function, flags)
-        return inner_decorator
-    register_function(arg)
-    return arg
 
 def kernel(function_or_method):
     """Decorates a function or method to be executed on the core device."""
@@ -206,7 +201,7 @@ class Core:
         embedding = EmbeddingMap()
 
         if allow_registration:
-            compiler.analyze(registered_functions, registered_classes, set())
+            compiler.analyze(registered_functions, registered_classes)
             allow_registration = False
 
         if hasattr(method, "__self__"):

nac3artiq/demo/str_abi.py

@@ -1,26 +0,0 @@
-from min_artiq import *
-from numpy import ndarray, zeros as np_zeros
-
-
-@nac3
-class StrFail:
-    core: KernelInvariant[Core]
-
-    def __init__(self):
-        self.core = Core()
-
-    @kernel
-    def hello(self, arg: str):
-        pass
-
-    @kernel
-    def consume_ndarray(self, arg: ndarray[str, 1]):
-        pass
-
-    def run(self):
-        self.hello("world")
-        self.consume_ndarray(np_zeros([10], dtype=str))
-
-
-if __name__ == "__main__":
-    StrFail().run()

nac3artiq/demo/string_attribute_issue337.py

@@ -1,24 +0,0 @@
-from min_artiq import *
-from numpy import int32
-
-
-@nac3
-class Demo:
-    core: KernelInvariant[Core]
-    attr1: KernelInvariant[str]
-    attr2: KernelInvariant[int32]
-
-
-    def __init__(self):
-        self.core = Core()
-        self.attr2 = 32
-        self.attr1 = "SAMPLE"
-
-    @kernel
-    def run(self):
-        print_int32(self.attr2)
-        self.attr1
-
-
-if __name__ == "__main__":
-    Demo().run()

nac3artiq/demo/support_class_attr_issue102.py

@@ -1,40 +0,0 @@
-from min_artiq import *
-from numpy import int32
-
-
-@nac3
-class Demo:
-    attr1: KernelInvariant[int32] = 2
-    attr2: int32 = 4
-    attr3: Kernel[int32]
-
-    @kernel
-    def __init__(self):
-        self.attr3 = 8
-
-
-@nac3
-class NAC3Devices:
-    core: KernelInvariant[Core]
-    attr4: KernelInvariant[int32] = 16
-    
-    def __init__(self):
-        self.core = Core()
-
-    @kernel
-    def run(self):
-        Demo.attr1  # Supported
-        # Demo.attr2  # Field not accessible on Kernel
-        # Demo.attr3  # Only attributes can be accessed in this way
-        # Demo.attr1 = 2  # Attributes are immutable
-
-        self.attr4  # Attributes can be accessed within class
-
-        obj = Demo()
-        obj.attr1  # Attributes can be accessed by class objects
-
-        NAC3Devices.attr4  # Attributes accessible for classes without __init__
-
-
-if __name__ == "__main__":
-    NAC3Devices().run()

nac3artiq/src/lib.rs

@@ -1,74 +1,60 @@
-#![deny(future_incompatible, let_underscore, nonstandard_style, clippy::all)]
+use std::collections::{HashMap, HashSet};
-#![warn(clippy::pedantic)]
+use std::fs;
-#![allow(
+use std::io::Write;
-    unsafe_op_in_unsafe_fn,
+use std::process::Command;
-    clippy::cast_possible_truncation,
+use std::rc::Rc;
-    clippy::cast_sign_loss,
+use std::sync::Arc;
-    clippy::enum_glob_use,
-    clippy::similar_names,
-    clippy::too_many_lines,
-    clippy::wildcard_imports
-)]
 
-use std::{
+use inkwell::{
-    collections::{HashMap, HashSet},
+    memory_buffer::MemoryBuffer,
-    fs,
+    module::{Linkage, Module},
-    io::Write,
+    passes::PassBuilderOptions,
-    process::Command,
+    support::is_multithreaded,
-    rc::Rc,
+    targets::*,
-    sync::Arc,
+    OptimizationLevel,
 };
-
 use itertools::Itertools;
-use parking_lot::{Mutex, RwLock};
+use nac3core::codegen::{CodeGenLLVMOptions, CodeGenTargetMachineOptions, gen_func_impl};
-use pyo3::{
+use nac3core::toplevel::builtins::get_exn_constructor;
-    create_exception, exceptions,
+use nac3core::typecheck::typedef::{TypeEnum, Unifier};
-    prelude::*,
+use nac3parser::{
-    types::{PyBytes, PyDict, PyNone, PySet},
+    ast::{ExprKind, Stmt, StmtKind, StrRef},
+    parser::parse_program,
 };
-use tempfile::{self, TempDir};
+use pyo3::prelude::*;
+use pyo3::{exceptions, types::PyBytes, types::PyDict, types::PySet};
+use pyo3::create_exception;
+
+use parking_lot::{Mutex, RwLock};
 
 use nac3core::{
-    codegen::{
+    codegen::irrt::load_irrt,
-        concrete_type::ConcreteTypeStore, gen_func_impl, irrt::load_irrt, CodeGenLLVMOptions,
+    codegen::{concrete_type::ConcreteTypeStore, CodeGenTask, WithCall, WorkerRegistry},
-        CodeGenTargetMachineOptions, CodeGenTask, CodeGenerator, WithCall, WorkerRegistry,
-    },
-    inkwell::{
-        context::Context,
-        memory_buffer::MemoryBuffer,
-        module::{FlagBehavior, Linkage, Module},
-        passes::PassBuilderOptions,
-        support::is_multithreaded,
-        targets::*,
-        OptimizationLevel,
-    },
-    nac3parser::{
-        ast::{Constant, ExprKind, Located, Stmt, StmtKind, StrRef},
-        parser::parse_program,
-    },
     symbol_resolver::SymbolResolver,
     toplevel::{
-        builtins::get_exn_constructor,
+        composer::{ComposerConfig, TopLevelComposer},
-        composer::{BuiltinFuncCreator, BuiltinFuncSpec, ComposerConfig, TopLevelComposer},
         DefinitionId, GenCall, TopLevelDef,
     },
-    typecheck::{
+    typecheck::typedef::{FunSignature, FuncArg},
-        type_inferencer::PrimitiveStore,
+    typecheck::{type_inferencer::PrimitiveStore, typedef::Type},
-        typedef::{into_var_map, FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
-    },
 };
+
 use nac3ld::Linker;
 
-use codegen::{
+use tempfile::{self, TempDir};
-    attributes_writeback, gen_core_log, gen_rtio_log, rpc_codegen_callback, ArtiqCodeGenerator,
+
+use crate::codegen::attributes_writeback;
+use crate::{
+    codegen::{rpc_codegen_callback, ArtiqCodeGenerator},
+    symbol_resolver::{InnerResolver, PythonHelper, Resolver, DeferredEvaluationStore},
 };
-use symbol_resolver::{DeferredEvaluationStore, InnerResolver, PythonHelper, Resolver};
-use timeline::TimeFns;
 
 mod codegen;
 mod symbol_resolver;
 mod timeline;
 
+use timeline::TimeFns;
+
 #[derive(PartialEq, Clone, Copy)]
 enum Isa {
     Host,
@@ -77,17 +63,6 @@ enum Isa {
     CortexA9,
 }
 
-impl Isa {
-    /// Returns the number of bits in `size_t` for the [`Isa`].
-    fn get_size_type(self) -> u32 {
-        if self == Isa::Host {
-            64u32
-        } else {
-            32u32
-        }
-    }
-}
-
 #[derive(Clone)]
 pub struct PrimitivePythonId {
     int: u64,
@@ -98,11 +73,7 @@ pub struct PrimitivePythonId {
     float: u64,
     float64: u64,
     bool: u64,
-    np_bool_: u64,
-    string: u64,
-    np_str_: u64,
     list: u64,
-    ndarray: u64,
     tuple: u64,
     typevar: u64,
     const_generic_marker: u64,
@@ -122,7 +93,7 @@ struct Nac3 {
     isa: Isa,
     time_fns: &'static (dyn TimeFns + Sync),
     primitive: PrimitiveStore,
-    builtins: Vec<BuiltinFuncSpec>,
+    builtins: Vec<(StrRef, FunSignature, Arc<GenCall>)>,
     pyid_to_def: Arc<RwLock<HashMap<u64, DefinitionId>>>,
     primitive_ids: PrimitivePythonId,
     working_directory: TempDir,
@@ -142,38 +113,22 @@ impl Nac3 {
         module: &PyObject,
         registered_class_ids: &HashSet<u64>,
     ) -> PyResult<()> {
-        let (module_name, source_file, source) =
+        let (module_name, source_file) = Python::with_gil(|py| -> PyResult<(String, String)> {
-            Python::with_gil(|py| -> PyResult<(String, String, String)> {
+            let module: &PyAny = module.extract(py)?;
-                let module: &PyAny = module.extract(py)?;
+            Ok((module.getattr("__name__")?.extract()?, module.getattr("__file__")?.extract()?))
-                let source_file = module.getattr("__file__");
+        })?;
-                let (source_file, source) = if let Ok(source_file) = source_file {
-                    let source_file = source_file.extract()?;
-                    (
-                        source_file,
-                        fs::read_to_string(source_file).map_err(|e| {
-                            exceptions::PyIOError::new_err(format!(
-                                "failed to read input file: {e}"
-                            ))
-                        })?,
-                    )
-                } else {
-                    // kernels submitted by content have no file
-                    // but still can provide source by StringLoader
-                    let get_src_fn = module
-                        .getattr("__loader__")?
-                        .extract::<PyObject>()?
-                        .getattr(py, "get_source")?;
-                    ("<expcontent>", get_src_fn.call1(py, (PyNone::get(py),))?.extract(py)?)
-                };
-                Ok((module.getattr("__name__")?.extract()?, source_file.to_string(), source))
-            })?;
 
+        let source = fs::read_to_string(&source_file).map_err(|e| {
+            exceptions::PyIOError::new_err(format!("failed to read input file: {e}"))
+        })?;
         let parser_result = parse_program(&source, source_file.into())
             .map_err(|e| exceptions::PySyntaxError::new_err(format!("parse error: {e}")))?;
 
         for mut stmt in parser_result {
             let include = match stmt.node {
-                StmtKind::ClassDef { ref decorator_list, ref mut body, ref mut bases, .. } => {
+                StmtKind::ClassDef {
+                    ref decorator_list, ref mut body, ref mut bases, ..
+                } => {
                     let nac3_class = decorator_list.iter().any(|decorator| {
                         if let ExprKind::Name { id, .. } = decorator.node {
                             id.to_string() == "nac3"
@@ -193,8 +148,7 @@ impl Nac3 {
                                     if *id == "Exception".into() {
                                         Ok(true)
                                     } else {
-                                        let base_obj =
+                                        let base_obj = module.getattr(py, id.to_string().as_str())?;
-                                            module.getattr(py, id.to_string().as_str())?;
                                         let base_id = id_fn.call1((base_obj,))?.extract()?;
                                         Ok(registered_class_ids.contains(&base_id))
                                     }
@@ -207,8 +161,10 @@ impl Nac3 {
                     body.retain(|stmt| {
                         if let StmtKind::FunctionDef { ref decorator_list, .. } = stmt.node {
                             decorator_list.iter().any(|decorator| {
-                                if let Some(id) = decorator_id_string(decorator) {
+                                if let ExprKind::Name { id, .. } = decorator.node {
-                                    id == "kernel" || id == "portable" || id == "rpc"
+                                    id.to_string() == "kernel"
+                                        || id.to_string() == "portable"
+                                        || id.to_string() == "rpc"
                                 } else {
                                     false
                                 }
@@ -221,8 +177,9 @@ impl Nac3 {
                 }
                 StmtKind::FunctionDef { ref decorator_list, .. } => {
                     decorator_list.iter().any(|decorator| {
-                        if let Some(id) = decorator_id_string(decorator) {
+                        if let ExprKind::Name { id, .. } = decorator.node {
-                            id == "extern" || id == "kernel" || id == "portable" || id == "rpc"
+                            let id = id.to_string();
+                            id == "extern" || id == "portable" || id == "kernel" || id == "rpc"
                         } else {
                             false
                         }
@@ -275,7 +232,7 @@ impl Nac3 {
                     arg_names.len(),
                 ));
             }
-            for (i, FuncArg { ty, default_value, name, .. }) in args.iter().enumerate() {
+            for (i, FuncArg { ty, default_value, name }) in args.iter().enumerate() {
                 let in_name = match arg_names.get(i) {
                     Some(n) => n,
                     None if default_value.is_none() => {
@@ -311,64 +268,6 @@ impl Nac3 {
         None
     }
 
-    /// Returns a [`Vec`] of builtins that needs to be initialized during method compilation time.
-    fn get_lateinit_builtins() -> Vec<Box<BuiltinFuncCreator>> {
-        vec![
-            Box::new(|primitives, unifier| {
-                let arg_ty = unifier.get_fresh_var(Some("T".into()), None);
-
-                (
-                    "core_log".into(),
-                    FunSignature {
-                        args: vec![FuncArg {
-                            name: "arg".into(),
-                            ty: arg_ty.ty,
-                            default_value: None,
-                            is_vararg: false,
-                        }],
-                        ret: primitives.none,
-                        vars: into_var_map([arg_ty]),
-                    },
-                    Arc::new(GenCall::new(Box::new(move |ctx, obj, fun, args, generator| {
-                        gen_core_log(ctx, &obj, fun, &args, generator)?;
-
-                        Ok(None)
-                    }))),
-                )
-            }),
-            Box::new(|primitives, unifier| {
-                let arg_ty = unifier.get_fresh_var(Some("T".into()), None);
-
-                (
-                    "rtio_log".into(),
-                    FunSignature {
-                        args: vec![
-                            FuncArg {
-                                name: "channel".into(),
-                                ty: primitives.str,
-                                default_value: None,
-                                is_vararg: false,
-                            },
-                            FuncArg {
-                                name: "arg".into(),
-                                ty: arg_ty.ty,
-                                default_value: None,
-                                is_vararg: false,
-                            },
-                        ],
-                        ret: primitives.none,
-                        vars: into_var_map([arg_ty]),
-                    },
-                    Arc::new(GenCall::new(Box::new(move |ctx, obj, fun, args, generator| {
-                        gen_rtio_log(ctx, &obj, fun, &args, generator)?;
-
-                        Ok(None)
-                    }))),
-                )
-            }),
-        ]
-    }
-
     fn compile_method<T>(
         &self,
         obj: &PyAny,
@@ -378,12 +277,9 @@ impl Nac3 {
         py: Python,
         link_fn: &dyn Fn(&Module) -> PyResult<T>,
     ) -> PyResult<T> {
-        let size_t = self.isa.get_size_type();
         let (mut composer, mut builtins_def, mut builtins_ty) = TopLevelComposer::new(
             self.builtins.clone(),
-            Self::get_lateinit_builtins(),
             ComposerConfig { kernel_ann: Some("Kernel"), kernel_invariant_ann: "KernelInvariant" },
-            size_t,
         );
 
         let builtins = PyModule::import(py, "builtins")?;
@@ -431,9 +327,8 @@ impl Nac3 {
             let class_obj;
             if let StmtKind::ClassDef { name, .. } = &stmt.node {
                 let class = py_module.getattr(name.to_string().as_str()).unwrap();
-                if issubclass.call1((class, exn_class)).unwrap().extract().unwrap()
+                if issubclass.call1((class, exn_class)).unwrap().extract().unwrap() &&
-                    && class.getattr("artiq_builtin").is_err()
+                    class.getattr("artiq_builtin").is_err() {
-                {
                     class_obj = Some(class);
                 } else {
                     class_obj = None;
@@ -458,6 +353,7 @@ impl Nac3 {
                         pyid_to_type: pyid_to_type.clone(),
                         primitive_ids: self.primitive_ids.clone(),
                         global_value_ids: global_value_ids.clone(),
+                        class_names: Mutex::default(),
                         name_to_pyid: name_to_pyid.clone(),
                         module: module.clone(),
                         id_to_pyval: RwLock::default(),
@@ -478,35 +374,19 @@ impl Nac3 {
             let (name, def_id, ty) = composer
                 .register_top_level(stmt.clone(), Some(resolver.clone()), path, false)
                 .map_err(|e| {
-                    CompileError::new_err(format!("compilation failed\n----------\n{e}"))
+                    CompileError::new_err(format!(
+                        "compilation failed\n----------\n{e}"
+                    ))
                 })?;
             if let Some(class_obj) = class_obj {
-                self.exception_ids
+                self.exception_ids.write().insert(def_id.0, store_obj.call1(py, (class_obj, ))?.extract(py)?);
-                    .write()
-                    .insert(def_id.0, store_obj.call1(py, (class_obj,))?.extract(py)?);
             }
 
             match &stmt.node {
                 StmtKind::FunctionDef { decorator_list, .. } => {
-                    if decorator_list
+                    if decorator_list.iter().any(|decorator| matches!(decorator.node, ExprKind::Name { id, .. } if id == "rpc".into())) {
-                        .iter()
+                        store_fun.call1(py, (def_id.0.into_py(py), module.getattr(py, name.to_string().as_str()).unwrap())).unwrap();
-                        .any(|decorator| decorator_id_string(decorator) == Some("rpc".to_string()))
+                        rpc_ids.push((None, def_id));
-                    {
-                        store_fun
-                            .call1(
-                                py,
-                                (
-                                    def_id.0.into_py(py),
-                                    module.getattr(py, name.to_string().as_str()).unwrap(),
-                                ),
-                            )
-                            .unwrap();
-                        let is_async = decorator_list.iter().any(|decorator| {
-                            decorator_get_flags(decorator)
-                                .iter()
-                                .any(|constant| *constant == Constant::Str("async".into()))
-                        });
-                        rpc_ids.push((None, def_id, is_async));
                     }
                 }
                 StmtKind::ClassDef { name, body, .. } => {
@@ -514,26 +394,19 @@ impl Nac3 {
                     let class_obj = module.getattr(py, class_name.as_str()).unwrap();
                     for stmt in body {
                         if let StmtKind::FunctionDef { name, decorator_list, .. } = &stmt.node {
-                            if decorator_list.iter().any(|decorator| {
+                            if decorator_list.iter().any(|decorator| matches!(decorator.node, ExprKind::Name { id, .. } if id == "rpc".into())) {
-                                decorator_id_string(decorator) == Some("rpc".to_string())
-                            }) {
-                                let is_async = decorator_list.iter().any(|decorator| {
-                                    decorator_get_flags(decorator)
-                                        .iter()
-                                        .any(|constant| *constant == Constant::Str("async".into()))
-                                });
                                 if name == &"__init__".into() {
                                     return Err(CompileError::new_err(format!(
                                         "compilation failed\n----------\nThe constructor of class {} should not be decorated with rpc decorator (at {})",
                                         class_name, stmt.location
                                     )));
                                 }
-                                rpc_ids.push((Some((class_obj.clone(), *name)), def_id, is_async));
+                                rpc_ids.push((Some((class_obj.clone(), *name)), def_id));
                             }
                         }
                     }
                 }
-                _ => (),
+                _ => ()
             }
 
             let id = *name_to_pyid.get(&name).unwrap();
@@ -572,6 +445,7 @@ impl Nac3 {
             pyid_to_type: pyid_to_type.clone(),
             primitive_ids: self.primitive_ids.clone(),
             global_value_ids: global_value_ids.clone(),
+            class_names: Mutex::default(),
             id_to_pyval: RwLock::default(),
             id_to_primitive: RwLock::default(),
             field_to_val: RwLock::default(),
@@ -582,26 +456,17 @@ impl Nac3 {
             exception_ids: self.exception_ids.clone(),
             deferred_eval_store: self.deferred_eval_store.clone(),
         });
-        let resolver =
+        let resolver = Arc::new(Resolver(inner_resolver.clone())) as Arc<dyn SymbolResolver + Send + Sync>;
-            Arc::new(Resolver(inner_resolver.clone())) as Arc<dyn SymbolResolver + Send + Sync>;
         let (_, def_id, _) = composer
             .register_top_level(synthesized.pop().unwrap(), Some(resolver.clone()), "", false)
             .unwrap();
 
-        // Process IRRT
-        let context = Context::create();
-        let irrt = load_irrt(&context, resolver.as_ref());
-
         let fun_signature =
-            FunSignature { args: vec![], ret: self.primitive.none, vars: VarMap::new() };
+            FunSignature { args: vec![], ret: self.primitive.none, vars: HashMap::new() };
         let mut store = ConcreteTypeStore::new();
         let mut cache = HashMap::new();
-        let signature = store.from_signature(
+        let signature =
-            &mut composer.unifier,
+            store.from_signature(&mut composer.unifier, &self.primitive, &fun_signature, &mut cache);
-            &self.primitive,
-            &fun_signature,
-            &mut cache,
-        );
         let signature = store.add_cty(signature);
 
         if let Err(e) = composer.start_analysis(true) {
@@ -620,21 +485,24 @@ impl Nac3 {
                     msg.unwrap_or(e.iter().sorted().join("\n----------\n"))
                 )))
             } else {
-                Err(CompileError::new_err(format!(
+                Err(CompileError::new_err(
-                    "compilation failed\n----------\n{}",
+                    format!(
-                    e.iter().sorted().join("\n----------\n"),
+                        "compilation failed\n----------\n{}",
-                )))
+                        e.iter().sorted().join("\n----------\n"),
-            };
+                    ),
+                ))
+            }
         }
         let top_level = Arc::new(composer.make_top_level_context());
 
         {
+            let rpc_codegen = rpc_codegen_callback();
             let defs = top_level.definitions.read();
-            for (class_data, id, is_async) in &rpc_ids {
+            for (class_data, id) in &rpc_ids {
                 let mut def = defs[id.0].write();
                 match &mut *def {
                     TopLevelDef::Function { codegen_callback, .. } => {
-                        *codegen_callback = Some(rpc_codegen_callback(*is_async));
+                        *codegen_callback = Some(rpc_codegen.clone());
                     }
                     TopLevelDef::Class { methods, .. } => {
                         let (class_def, method_name) = class_data.as_ref().unwrap();
@@ -645,26 +513,19 @@ impl Nac3 {
                             if let TopLevelDef::Function { codegen_callback, .. } =
                                 &mut *defs[id.0].write()
                             {
-                                *codegen_callback = Some(rpc_codegen_callback(*is_async));
+                                *codegen_callback = Some(rpc_codegen.clone());
                                 store_fun
                                     .call1(
                                         py,
                                         (
                                             id.0.into_py(py),
-                                            class_def
+                                            class_def.getattr(py, name.to_string().as_str()).unwrap(),
-                                                .getattr(py, name.to_string().as_str())
-                                                .unwrap(),
                                         ),
                                     )
                                     .unwrap();
                             }
                         }
                     }
-                    TopLevelDef::Variable { .. } => {
-                        return Err(CompileError::new_err(String::from(
-                            "Unsupported @rpc annotation on global variable",
-                        )))
-                    }
                 }
             }
         }
@@ -673,8 +534,7 @@ impl Nac3 {
             let defs = top_level.definitions.read();
             let mut definition = defs[def_id.0].write();
             let TopLevelDef::Function { instance_to_stmt, instance_to_symbol, .. } =
-                &mut *definition
+                &mut *definition else {
-            else {
                 unreachable!()
             };
 
@@ -685,12 +545,29 @@ impl Nac3 {
         let task = CodeGenTask {
             subst: Vec::default(),
             symbol_name: "__modinit__".to_string(),
+            body: instance.body,
+            signature,
+            resolver: resolver.clone(),
+            store,
+            unifier_index: instance.unifier_id,
+            calls: instance.calls,
+            id: 0,
+        };
+
+        let mut store = ConcreteTypeStore::new();
+        let mut cache = HashMap::new();
+        let signature =
+            store.from_signature(&mut composer.unifier, &self.primitive, &fun_signature, &mut cache);
+        let signature = store.add_cty(signature);
+        let attributes_writeback_task = CodeGenTask {
+            subst: Vec::default(),
+            symbol_name: "attributes_writeback".to_string(),
             body: Arc::new(Vec::default()),
             signature,
             resolver,
             store,
             unifier_index: instance.unifier_id,
-            calls: instance.calls,
+            calls: Arc::new(HashMap::default()),
             id: 0,
         };
 
@@ -703,9 +580,7 @@ impl Nac3 {
             let buffer = buffer.as_slice().into();
             membuffer.lock().push(buffer);
         })));
-        let size_t = context
+        let size_t = if self.isa == Isa::Host { 64 } else { 32 };
-            .ptr_sized_int_type(&self.get_llvm_target_machine().get_target_data(), None)
-            .get_bit_width();
         let num_threads = if is_multithreaded() { 4 } else { 1 };
         let thread_names: Vec<String> = (0..num_threads).map(|_| "main".to_string()).collect();
         let threads: Vec<_> = thread_names
@@ -714,81 +589,49 @@ impl Nac3 {
             .collect();
 
         let membuffer = membuffers.clone();
-        let mut has_return = false;
         py.allow_threads(|| {
-            let (registry, handles) =
+            let (registry, handles) = WorkerRegistry::create_workers(
-                WorkerRegistry::create_workers(threads, top_level.clone(), &self.llvm_options, &f);
+                threads,
+                top_level.clone(),
+                &self.llvm_options,
+                &f
+            );
+            registry.add_task(task);
+            registry.wait_tasks_complete(handles);
 
-            let mut generator = ArtiqCodeGenerator::new("main".to_string(), size_t, self.time_fns);
+            let mut generator = ArtiqCodeGenerator::new("attributes_writeback".to_string(), size_t, self.time_fns);
-            let context = Context::create();
+            let context = inkwell::context::Context::create();
-            let module = context.create_module("main");
+            let module = context.create_module("attributes_writeback");
-            let target_machine = self.llvm_options.create_target_machine().unwrap();
-            module.set_data_layout(&target_machine.get_target_data().get_data_layout());
-            module.set_triple(&target_machine.get_triple());
-            module.add_basic_value_flag(
-                "Debug Info Version",
-                FlagBehavior::Warning,
-                context.i32_type().const_int(3, false),
-            );
-            module.add_basic_value_flag(
-                "Dwarf Version",
-                FlagBehavior::Warning,
-                context.i32_type().const_int(4, false),
-            );
             let builder = context.create_builder();
-            let (_, module, _) = gen_func_impl(
+            let (_, module, _) = gen_func_impl(&context, &mut generator, &registry, builder, module,
-                &context,
+                attributes_writeback_task, |generator, ctx| {
-                &mut generator,
+                    attributes_writeback(ctx, generator, inner_resolver.as_ref(), &host_attributes)
-                &registry,
+                }).unwrap();
-                builder,
-                module,
-                task,
-                |generator, ctx| {
-                    assert_eq!(instance.body.len(), 1, "toplevel module should have 1 statement");
-                    let StmtKind::Expr { value: ref expr, .. } = instance.body[0].node else {
-                        unreachable!("toplevel statement must be an expression")
-                    };
-                    let ExprKind::Call { .. } = expr.node else {
-                        unreachable!("toplevel expression must be a function call")
-                    };
-
-                    let return_obj =
-                        generator.gen_expr(ctx, expr)?.map(|value| (expr.custom.unwrap(), value));
-                    has_return = return_obj.is_some();
-                    registry.wait_tasks_complete(handles);
-                    attributes_writeback(
-                        ctx,
-                        generator,
-                        inner_resolver.as_ref(),
-                        &host_attributes,
-                        return_obj,
-                    )
-                },
-            )
-            .unwrap();
             let buffer = module.write_bitcode_to_memory();
             let buffer = buffer.as_slice().into();
             membuffer.lock().push(buffer);
         });
 
-        embedding_map.setattr("expects_return", has_return).unwrap();
+        let context = inkwell::context::Context::create();
-
-        // Link all modules into `main`.
         let buffers = membuffers.lock();
         let main = context
-            .create_module_from_ir(MemoryBuffer::create_from_memory_range(
+            .create_module_from_ir(MemoryBuffer::create_from_memory_range(&buffers[0], "main"))
-                buffers.last().unwrap(),
-                "main",
-            ))
             .unwrap();
-        for buffer in buffers.iter().rev().skip(1) {
+        for buffer in buffers.iter().skip(1) {
             let other = context
                 .create_module_from_ir(MemoryBuffer::create_from_memory_range(buffer, "main"))
                 .unwrap();
 
-            main.link_in_module(other).map_err(|err| CompileError::new_err(err.to_string()))?;
+            main.link_in_module(other)
+                .map_err(|err| CompileError::new_err(err.to_string()))?;
         }
-        main.link_in_module(irrt).map_err(|err| CompileError::new_err(err.to_string()))?;
+        let builder = context.create_builder();
+        let modinit_return = main.get_function("__modinit__").unwrap().get_last_basic_block().unwrap().get_terminator().unwrap();
+        builder.position_before(&modinit_return);
+        builder.build_call(main.get_function("attributes_writeback").unwrap(), &[], "attributes_writeback");
+
+        main.link_in_module(load_irrt(&context))
+            .map_err(|err| CompileError::new_err(err.to_string()))?;
 
         let mut function_iter = main.get_first_function();
         while let Some(func) = function_iter {
@@ -799,7 +642,10 @@ impl Nac3 {
         }
 
         // Demote all global variables that will not be referenced in the kernel to private
-        let preserved_symbols: Vec<&'static [u8]> = vec![b"typeinfo", b"now"];
+        let preserved_symbols: Vec<&'static [u8]> = vec![
+            b"typeinfo",
+            b"now",
+        ];
         let mut global_option = main.get_first_global();
         while let Some(global) = global_option {
             if !preserved_symbols.contains(&(global.get_name().to_bytes())) {
@@ -808,9 +654,7 @@ impl Nac3 {
             global_option = global.get_next_global();
         }
 
-        let target_machine = self
+        let target_machine = self.llvm_options.target
-            .llvm_options
-            .target
             .create_target_machine(self.llvm_options.opt_level)
             .expect("couldn't create target machine");
 
@@ -874,42 +718,10 @@ impl Nac3 {
     }
 }
 
-/// Retrieves the Name.id from a decorator, supports decorators with arguments.
+fn link_with_lld(
-fn decorator_id_string(decorator: &Located<ExprKind>) -> Option<String> {
+    elf_filename: String,
-    if let ExprKind::Name { id, .. } = decorator.node {
+    obj_filename: String,
-        // Bare decorator
+) -> PyResult<()>{
-        return Some(id.to_string());
-    } else if let ExprKind::Call { func, .. } = &decorator.node {
-        // Decorators that are calls (e.g. "@rpc()") have Call for the node,
-        // need to extract the id from within.
-        if let ExprKind::Name { id, .. } = func.node {
-            return Some(id.to_string());
-        }
-    }
-    None
-}
-
-/// Retrieves flags from a decorator, if any.
-fn decorator_get_flags(decorator: &Located<ExprKind>) -> Vec<Constant> {
-    let mut flags = vec![];
-    if let ExprKind::Call { keywords, .. } = &decorator.node {
-        for keyword in keywords {
-            if keyword.node.arg != Some("flags".into()) {
-                continue;
-            }
-            if let ExprKind::Set { elts } = &keyword.node.value.node {
-                for elt in elts {
-                    if let ExprKind::Constant { value, .. } = &elt.node {
-                        flags.push(value.clone());
-                    }
-                }
-            }
-        }
-    }
-    flags
-}
-
-fn link_with_lld(elf_filename: String, obj_filename: String) -> PyResult<()> {
     let linker_args = vec![
         "-shared".to_string(),
         "--eh-frame-hdr".to_string(),
@@ -928,7 +740,9 @@ fn link_with_lld(elf_filename: String, obj_filename: String) -> PyResult<()> {
             return Err(CompileError::new_err("failed to start linker"));
         }
     } else {
-        return Err(CompileError::new_err("linker returned non-zero status code"));
+        return Err(CompileError::new_err(
+            "linker returned non-zero status code",
+        ));
     }
 
     Ok(())
@@ -938,7 +752,7 @@ fn add_exceptions(
     composer: &mut TopLevelComposer,
     builtin_def: &mut HashMap<StrRef, DefinitionId>,
     builtin_ty: &mut HashMap<StrRef, Type>,
-    error_names: &[&str],
+    error_names: &[&str]
 ) -> Vec<Type> {
     let mut types = Vec::new();
     // note: this is only for builtin exceptions, i.e. the exception name is "0:{exn}"
@@ -951,7 +765,7 @@ fn add_exceptions(
             // constructor id
             def_id + 1,
             &mut composer.unifier,
-            &composer.primitives_ty,
+            &composer.primitives_ty
         );
         composer.definition_ast_list.push((Arc::new(RwLock::new(exception_class)), None));
         composer.definition_ast_list.push((Arc::new(RwLock::new(exception_fn)), None));
@@ -978,11 +792,11 @@ impl Nac3 {
             Isa::RiscV32IMA => &timeline::NOW_PINNING_TIME_FNS,
             Isa::CortexA9 | Isa::Host => &timeline::EXTERN_TIME_FNS,
         };
-        let (primitive, _) = TopLevelComposer::make_primitives(isa.get_size_type());
+        let primitive: PrimitiveStore = TopLevelComposer::make_primitives().0;
         let builtins = vec![
             (
                 "now_mu".into(),
-                FunSignature { args: vec![], ret: primitive.int64, vars: VarMap::new() },
+                FunSignature { args: vec![], ret: primitive.int64, vars: HashMap::new() },
                 Arc::new(GenCall::new(Box::new(move |ctx, _, _, _, _| {
                     Ok(Some(time_fns.emit_now_mu(ctx)))
                 }))),
@@ -994,15 +808,13 @@ impl Nac3 {
                         name: "t".into(),
                         ty: primitive.int64,
                         default_value: None,
-                        is_vararg: false,
                     }],
                     ret: primitive.none,
-                    vars: VarMap::new(),
+                    vars: HashMap::new(),
                 },
                 Arc::new(GenCall::new(Box::new(move |ctx, _, fun, args, generator| {
                     let arg_ty = fun.0.args[0].ty;
-                    let arg =
+                    let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty).unwrap();
-                        args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty).unwrap();
                     time_fns.emit_at_mu(ctx, arg);
                     Ok(None)
                 }))),
@@ -1014,15 +826,13 @@ impl Nac3 {
                         name: "dt".into(),
                         ty: primitive.int64,
                         default_value: None,
-                        is_vararg: false,
                     }],
                     ret: primitive.none,
-                    vars: VarMap::new(),
+                    vars: HashMap::new(),
                 },
                 Arc::new(GenCall::new(Box::new(move |ctx, _, fun, args, generator| {
                     let arg_ty = fun.0.args[0].ty;
-                    let arg =
+                    let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty).unwrap();
-                        args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty).unwrap();
                     time_fns.emit_delay_mu(ctx, arg);
                     Ok(None)
                 }))),
@@ -1036,9 +846,8 @@ impl Nac3 {
         let types_mod = PyModule::import(py, "types").unwrap();
 
         let get_id = |x: &PyAny| id_fn.call1((x,)).and_then(PyAny::extract).unwrap();
-        let get_attr_id = |obj: &PyModule, attr| {
+        let get_attr_id = |obj: &PyModule, attr| id_fn.call1((obj.getattr(attr).unwrap(),))
-            id_fn.call1((obj.getattr(attr).unwrap(),)).unwrap().extract().unwrap()
+            .unwrap().extract().unwrap();
-        };
         let primitive_ids = PrimitivePythonId {
             virtual_id: get_id(artiq_builtins.get_item("virtual").ok().flatten().unwrap()),
             generic_alias: (
@@ -1047,22 +856,16 @@ impl Nac3 {
             ),
             none: get_id(artiq_builtins.get_item("none").ok().flatten().unwrap()),
             typevar: get_attr_id(typing_mod, "TypeVar"),
-            const_generic_marker: get_id(
+            const_generic_marker: get_id(artiq_builtins.get_item("_ConstGenericMarker").ok().flatten().unwrap()),
-                artiq_builtins.get_item("_ConstGenericMarker").ok().flatten().unwrap(),
-            ),
             int: get_attr_id(builtins_mod, "int"),
             int32: get_attr_id(numpy_mod, "int32"),
             int64: get_attr_id(numpy_mod, "int64"),
             uint32: get_attr_id(numpy_mod, "uint32"),
             uint64: get_attr_id(numpy_mod, "uint64"),
             bool: get_attr_id(builtins_mod, "bool"),
-            np_bool_: get_attr_id(numpy_mod, "bool_"),
-            string: get_attr_id(builtins_mod, "str"),
-            np_str_: get_attr_id(numpy_mod, "str_"),
             float: get_attr_id(builtins_mod, "float"),
             float64: get_attr_id(numpy_mod, "float64"),
             list: get_attr_id(builtins_mod, "list"),
-            ndarray: get_attr_id(numpy_mod, "ndarray"),
             tuple: get_attr_id(builtins_mod, "tuple"),
             exception: get_attr_id(builtins_mod, "Exception"),
             option: get_id(artiq_builtins.get_item("Option").ok().flatten().unwrap()),
@@ -1086,16 +889,11 @@ impl Nac3 {
             llvm_options: CodeGenLLVMOptions {
                 opt_level: OptimizationLevel::Default,
                 target: Nac3::get_llvm_target_options(isa),
-            },
+            }
         })
     }
 
-    fn analyze(
+    fn analyze(&mut self, functions: &PySet, classes: &PySet) -> PyResult<()> {
-        &mut self,
-        functions: &PySet,
-        classes: &PySet,
-        content_modules: &PySet,
-    ) -> PyResult<()> {
         let (modules, class_ids) =
             Python::with_gil(|py| -> PyResult<(HashMap<u64, PyObject>, HashSet<u64>)> {
                 let mut modules: HashMap<u64, PyObject> = HashMap::new();
@@ -1105,21 +903,13 @@ impl Nac3 {
                 let getmodule_fn = PyModule::import(py, "inspect")?.getattr("getmodule")?;
 
                 for function in functions {
-                    let module: PyObject = getmodule_fn.call1((function,))?.extract()?;
+                    let module = getmodule_fn.call1((function,))?.extract()?;
-                    if !module.is_none(py) {
+                    modules.insert(id_fn.call1((&module,))?.extract()?, module);
-                        modules.insert(id_fn.call1((&module,))?.extract()?, module);
-                    }
                 }
                 for class in classes {
-                    let module: PyObject = getmodule_fn.call1((class,))?.extract()?;
+                    let module = getmodule_fn.call1((class,))?.extract()?;
-                    if !module.is_none(py) {
-                        modules.insert(id_fn.call1((&module,))?.extract()?, module);
-                    }
-                    class_ids.insert(id_fn.call1((class,))?.extract()?);
-                }
-                for module in content_modules {
-                    let module: PyObject = module.extract()?;
                     modules.insert(id_fn.call1((&module,))?.extract()?, module);
+                    class_ids.insert(id_fn.call1((class,))?.extract()?);
                 }
                 Ok((modules, class_ids))
             })?;
@@ -1140,7 +930,7 @@ impl Nac3 {
         py: Python,
     ) -> PyResult<()> {
         let target_machine = self.get_llvm_target_machine();
-
+        
         if self.isa == Isa::Host {
             let link_fn = |module: &Module| {
                 let working_directory = self.working_directory.path().to_owned();
@@ -1149,7 +939,7 @@ impl Nac3 {
                     .expect("couldn't write module to file");
                 link_with_lld(
                     filename.to_string(),
-                    working_directory.join("module.o").to_string_lossy().to_string(),
+                    working_directory.join("module.o").to_string_lossy().to_string()
                 )?;
                 Ok(())
             };
@@ -1185,7 +975,7 @@ impl Nac3 {
         py: Python,
     ) -> PyResult<PyObject> {
         let target_machine = self.get_llvm_target_machine();
-
+        
         if self.isa == Isa::Host {
             let link_fn = |module: &Module| {
                 let working_directory = self.working_directory.path().to_owned();
@@ -1197,7 +987,7 @@ impl Nac3 {
                 let filename = filename_path.to_str().unwrap();
                 link_with_lld(
                     filename.to_string(),
-                    working_directory.join("module.o").to_string_lossy().to_string(),
+                    working_directory.join("module.o").to_string_lossy().to_string()
                 )?;
 
                 Ok(PyBytes::new(py, &fs::read(filename).unwrap()).into())

nac3artiq/src/timeline.rs

@@ -1,15 +1,9 @@
-use itertools::Either;
+use inkwell::{values::BasicValueEnum, AddressSpace, AtomicOrdering};
-
+use nac3core::codegen::CodeGenContext;
-use nac3core::{
-    codegen::CodeGenContext,
-    inkwell::{
-        values::{BasicValueEnum, CallSiteValue},
-        AddressSpace, AtomicOrdering,
-    },
-};
 
 /// Functions for manipulating the timeline.
 pub trait TimeFns {
+
     /// Emits LLVM IR for `now_mu`.
     fn emit_now_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>) -> BasicValueEnum<'ctx>;
 
@@ -32,33 +26,32 @@ impl TimeFns for NowPinningTimeFns64 {
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_hiptr = ctx
+        let now_hiptr =
-            .builder
+            ctx.builder.build_bitcast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr");
-            .build_bit_cast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr")
+
-            .map(BasicValueEnum::into_pointer_value)
+        let BasicValueEnum::PointerValue(now_hiptr) = now_hiptr else {
-            .unwrap();
+            unreachable!()
+        };
 
         let now_loptr = unsafe {
             ctx.builder.build_gep(now_hiptr, &[i32_type.const_int(2, false)], "now.lo.addr")
-        }
+        };
-        .unwrap();
 
-        let now_hi = ctx
+        let (BasicValueEnum::IntValue(now_hi), BasicValueEnum::IntValue(now_lo)) = (
-            .builder
+            ctx.builder.build_load(now_hiptr, "now.hi"),
-            .build_load(now_hiptr, "now.hi")
+            ctx.builder.build_load(now_loptr, "now.lo"),
-            .map(BasicValueEnum::into_int_value)
+        ) else {
-            .unwrap();
+            unreachable!()
-        let now_lo = ctx
+        };
-            .builder
-            .build_load(now_loptr, "now.lo")
-            .map(BasicValueEnum::into_int_value)
-            .unwrap();
 
-        let zext_hi = ctx.builder.build_int_z_extend(now_hi, i64_type, "").unwrap();
+        let zext_hi = ctx.builder.build_int_z_extend(now_hi, i64_type, "");
-        let shifted_hi =
+        let shifted_hi = ctx.builder.build_left_shift(
-            ctx.builder.build_left_shift(zext_hi, i64_type.const_int(32, false), "").unwrap();
+            zext_hi,
-        let zext_lo = ctx.builder.build_int_z_extend(now_lo, i64_type, "").unwrap();
+            i64_type.const_int(32, false),
-        ctx.builder.build_or(shifted_hi, zext_lo, "now_mu").map(Into::into).unwrap()
+            "",
+        );
+        let zext_lo = ctx.builder.build_int_z_extend(now_lo, i64_type, "");
+        ctx.builder.build_or(shifted_hi, zext_lo, "now_mu").into()
     }
 
     fn emit_at_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, t: BasicValueEnum<'ctx>) {
@@ -66,100 +59,105 @@ impl TimeFns for NowPinningTimeFns64 {
         let i64_type = ctx.ctx.i64_type();
 
         let i64_32 = i64_type.const_int(32, false);
-        let time = t.into_int_value();
+        let BasicValueEnum::IntValue(time) = t else {
+            unreachable!()
+        };
 
-        let time_hi = ctx
+        let time_hi = ctx.builder.build_int_truncate(
-            .builder
+            ctx.builder.build_right_shift(time, i64_32, false, "time.hi"),
-            .build_int_truncate(
+            i32_type,
-                ctx.builder.build_right_shift(time, i64_32, false, "time.hi").unwrap(),
+            "",
-                i32_type,
+        );
-                "",
+        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo");
-            )
-            .unwrap();
-        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo").unwrap();
         let now = ctx
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_hiptr = ctx
+        let now_hiptr = ctx.builder.build_bitcast(
-            .builder
+            now,
-            .build_bit_cast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr")
+            i32_type.ptr_type(AddressSpace::default()),
-            .map(BasicValueEnum::into_pointer_value)
+            "now.hi.addr",
-            .unwrap();
+        );
+
+        let BasicValueEnum::PointerValue(now_hiptr) = now_hiptr else {
+            unreachable!()
+        };
 
         let now_loptr = unsafe {
             ctx.builder.build_gep(now_hiptr, &[i32_type.const_int(2, false)], "now.lo.addr")
-        }
+        };
-        .unwrap();
         ctx.builder
             .build_store(now_hiptr, time_hi)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
         ctx.builder
             .build_store(now_loptr, time_lo)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
     }
 
-    fn emit_delay_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, dt: BasicValueEnum<'ctx>) {
+    fn emit_delay_mu<'ctx>(
+        &self,
+        ctx: &mut CodeGenContext<'ctx, '_>,
+        dt: BasicValueEnum<'ctx>,
+    ) {
         let i64_type = ctx.ctx.i64_type();
         let i32_type = ctx.ctx.i32_type();
         let now = ctx
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_hiptr = ctx
+        let now_hiptr =
-            .builder
+            ctx.builder.build_bitcast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr");
-            .build_bit_cast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr")
+
-            .map(BasicValueEnum::into_pointer_value)
+        let BasicValueEnum::PointerValue(now_hiptr) = now_hiptr else {
-            .unwrap();
+            unreachable!()
+        };
 
         let now_loptr = unsafe {
             ctx.builder.build_gep(now_hiptr, &[i32_type.const_int(2, false)], "now.lo.addr")
-        }
+        };
-        .unwrap();
 
-        let now_hi = ctx
+        let (
-            .builder
+            BasicValueEnum::IntValue(now_hi),
-            .build_load(now_hiptr, "now.hi")
+            BasicValueEnum::IntValue(now_lo),
-            .map(BasicValueEnum::into_int_value)
+            BasicValueEnum::IntValue(dt),
-            .unwrap();
+        ) = (
-        let now_lo = ctx
+            ctx.builder.build_load(now_hiptr, "now.hi"),
-            .builder
+            ctx.builder.build_load(now_loptr, "now.lo"),
-            .build_load(now_loptr, "now.lo")
+            dt,
-            .map(BasicValueEnum::into_int_value)
+        ) else {
-            .unwrap();
+            unreachable!()
-        let dt = dt.into_int_value();
+        };
 
-        let zext_hi = ctx.builder.build_int_z_extend(now_hi, i64_type, "").unwrap();
+        let zext_hi = ctx.builder.build_int_z_extend(now_hi, i64_type, "");
-        let shifted_hi =
+        let shifted_hi = ctx.builder.build_left_shift(
-            ctx.builder.build_left_shift(zext_hi, i64_type.const_int(32, false), "").unwrap();
+            zext_hi,
-        let zext_lo = ctx.builder.build_int_z_extend(now_lo, i64_type, "").unwrap();
+            i64_type.const_int(32, false),
-        let now_val = ctx.builder.build_or(shifted_hi, zext_lo, "now").unwrap();
+            "",
+        );
+        let zext_lo = ctx.builder.build_int_z_extend(now_lo, i64_type, "");
+        let now_val = ctx.builder.build_or(shifted_hi, zext_lo, "now");
 
-        let time = ctx.builder.build_int_add(now_val, dt, "time").unwrap();
+        let time = ctx.builder.build_int_add(now_val, dt, "time");
-        let time_hi = ctx
+        let time_hi = ctx.builder.build_int_truncate(
-            .builder
+            ctx.builder.build_right_shift(
-            .build_int_truncate(
+                time,
-                ctx.builder
+                i64_type.const_int(32, false),
-                    .build_right_shift(time, i64_type.const_int(32, false), false, "")
+                false,
-                    .unwrap(),
+                "",
-                i32_type,
+            ),
-                "time.hi",
+            i32_type,
-            )
+            "time.hi",
-            .unwrap();
+        );
-        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo").unwrap();
+        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo");
 
         ctx.builder
             .build_store(now_hiptr, time_hi)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
         ctx.builder
             .build_store(now_loptr, time_lo)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
     }
@@ -176,16 +174,16 @@ impl TimeFns for NowPinningTimeFns {
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_raw = ctx
+        let now_raw = ctx.builder.build_load(now.as_pointer_value(), "now");
-            .builder
+
-            .build_load(now.as_pointer_value(), "now")
+        let BasicValueEnum::IntValue(now_raw) = now_raw else {
-            .map(BasicValueEnum::into_int_value)
+            unreachable!()
-            .unwrap();
+        };
 
         let i64_32 = i64_type.const_int(32, false);
-        let now_lo = ctx.builder.build_left_shift(now_raw, i64_32, "now.lo").unwrap();
+        let now_lo = ctx.builder.build_left_shift(now_raw, i64_32, "now.lo");
-        let now_hi = ctx.builder.build_right_shift(now_raw, i64_32, false, "now.hi").unwrap();
+        let now_hi = ctx.builder.build_right_shift(now_raw, i64_32, false, "now.hi");
-        ctx.builder.build_or(now_lo, now_hi, "now_mu").map(Into::into).unwrap()
+        ctx.builder.build_or(now_lo, now_hi, "now_mu").into()
     }
 
     fn emit_at_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, t: BasicValueEnum<'ctx>) {
@@ -193,44 +191,48 @@ impl TimeFns for NowPinningTimeFns {
         let i64_type = ctx.ctx.i64_type();
         let i64_32 = i64_type.const_int(32, false);
 
-        let time = t.into_int_value();
+        let BasicValueEnum::IntValue(time) = t else {
+            unreachable!()
+        };
 
-        let time_hi = ctx
+        let time_hi = ctx.builder.build_int_truncate(
-            .builder
+            ctx.builder.build_right_shift(time, i64_32, false, ""),
-            .build_int_truncate(
+            i32_type,
-                ctx.builder.build_right_shift(time, i64_32, false, "").unwrap(),
+            "time.hi",
-                i32_type,
+        );
-                "time.hi",
+        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "now_trunc");
-            )
-            .unwrap();
-        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "now_trunc").unwrap();
         let now = ctx
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_hiptr = ctx
+        let now_hiptr = ctx.builder.build_bitcast(
-            .builder
+            now,
-            .build_bit_cast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr")
+            i32_type.ptr_type(AddressSpace::default()),
-            .map(BasicValueEnum::into_pointer_value)
+            "now.hi.addr",
-            .unwrap();
+        );
+
+        let BasicValueEnum::PointerValue(now_hiptr) = now_hiptr else {
+            unreachable!()
+        };
 
         let now_loptr = unsafe {
             ctx.builder.build_gep(now_hiptr, &[i32_type.const_int(1, false)], "now.lo.addr")
-        }
+        };
-        .unwrap();
         ctx.builder
             .build_store(now_hiptr, time_hi)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
         ctx.builder
             .build_store(now_loptr, time_lo)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
     }
 
-    fn emit_delay_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, dt: BasicValueEnum<'ctx>) {
+    fn emit_delay_mu<'ctx>(
+        &self,
+        ctx: &mut CodeGenContext<'ctx, '_>,
+        dt: BasicValueEnum<'ctx>,
+    ) {
         let i32_type = ctx.ctx.i32_type();
         let i64_type = ctx.ctx.i64_type();
         let i64_32 = i64_type.const_int(32, false);
@@ -238,45 +240,41 @@ impl TimeFns for NowPinningTimeFns {
             .module
             .get_global("now")
             .unwrap_or_else(|| ctx.module.add_global(i64_type, None, "now"));
-        let now_raw = ctx
+        let now_raw = ctx.builder.build_load(now.as_pointer_value(), "");
-            .builder
-            .build_load(now.as_pointer_value(), "")
-            .map(BasicValueEnum::into_int_value)
-            .unwrap();
 
-        let dt = dt.into_int_value();
+        let (BasicValueEnum::IntValue(now_raw), BasicValueEnum::IntValue(dt)) = (now_raw, dt) else { 
+            unreachable!() 
+        };
 
-        let now_lo = ctx.builder.build_left_shift(now_raw, i64_32, "now.lo").unwrap();
+        let now_lo = ctx.builder.build_left_shift(now_raw, i64_32, "now.lo");
-        let now_hi = ctx.builder.build_right_shift(now_raw, i64_32, false, "now.hi").unwrap();
+        let now_hi = ctx.builder.build_right_shift(now_raw, i64_32, false, "now.hi");
-        let now_val = ctx.builder.build_or(now_lo, now_hi, "now_val").unwrap();
+        let now_val = ctx.builder.build_or(now_lo, now_hi, "now_val");
-        let time = ctx.builder.build_int_add(now_val, dt, "time").unwrap();
+        let time = ctx.builder.build_int_add(now_val, dt, "time");
-        let time_hi = ctx
+        let time_hi = ctx.builder.build_int_truncate(
-            .builder
+            ctx.builder.build_right_shift(time, i64_32, false, "time.hi"),
-            .build_int_truncate(
+            i32_type,
-                ctx.builder.build_right_shift(time, i64_32, false, "time.hi").unwrap(),
+            "now_trunc",
-                i32_type,
+        );
-                "now_trunc",
+        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo");
-            )
+        let now_hiptr = ctx.builder.build_bitcast(
-            .unwrap();
+            now,
-        let time_lo = ctx.builder.build_int_truncate(time, i32_type, "time.lo").unwrap();
+            i32_type.ptr_type(AddressSpace::default()),
-        let now_hiptr = ctx
+            "now.hi.addr",
-            .builder
+        );
-            .build_bit_cast(now, i32_type.ptr_type(AddressSpace::default()), "now.hi.addr")
+
-            .map(BasicValueEnum::into_pointer_value)
+        let BasicValueEnum::PointerValue(now_hiptr) = now_hiptr else { 
-            .unwrap();
+            unreachable!()
+        };
 
         let now_loptr = unsafe {
             ctx.builder.build_gep(now_hiptr, &[i32_type.const_int(1, false)], "now.lo.addr")
-        }
+        };
-        .unwrap();
         ctx.builder
             .build_store(now_hiptr, time_hi)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
         ctx.builder
             .build_store(now_loptr, time_lo)
-            .unwrap()
             .set_atomic_ordering(AtomicOrdering::SequentiallyConsistent)
             .unwrap();
     }
@@ -291,11 +289,7 @@ impl TimeFns for ExternTimeFns {
         let now_mu = ctx.module.get_function("now_mu").unwrap_or_else(|| {
             ctx.module.add_function("now_mu", ctx.ctx.i64_type().fn_type(&[], false), None)
         });
-        ctx.builder
+        ctx.builder.build_call(now_mu, &[], "now_mu").try_as_basic_value().left().unwrap()
-            .build_call(now_mu, &[], "now_mu")
-            .map(CallSiteValue::try_as_basic_value)
-            .map(Either::unwrap_left)
-            .unwrap()
     }
 
     fn emit_at_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, t: BasicValueEnum<'ctx>) {
@@ -306,10 +300,14 @@ impl TimeFns for ExternTimeFns {
                 None,
             )
         });
-        ctx.builder.build_call(at_mu, &[t.into()], "at_mu").unwrap();
+        ctx.builder.build_call(at_mu, &[t.into()], "at_mu");
     }
 
-    fn emit_delay_mu<'ctx>(&self, ctx: &mut CodeGenContext<'ctx, '_>, dt: BasicValueEnum<'ctx>) {
+    fn emit_delay_mu<'ctx>(
+        &self,
+        ctx: &mut CodeGenContext<'ctx, '_>,
+        dt: BasicValueEnum<'ctx>,
+    ) {
         let delay_mu = ctx.module.get_function("delay_mu").unwrap_or_else(|| {
             ctx.module.add_function(
                 "delay_mu",
@@ -317,7 +315,7 @@ impl TimeFns for ExternTimeFns {
                 None,
             )
         });
-        ctx.builder.build_call(delay_mu, &[dt.into()], "delay_mu").unwrap();
+        ctx.builder.build_call(delay_mu, &[dt.into()], "delay_mu");
     }
 }
 

nac3ast/Cargo.toml

@@ -10,6 +10,7 @@ constant-optimization = ["fold"]
 fold = []
 
 [dependencies]
+lazy_static = "1.4"
 parking_lot = "0.12"
-string-interner = "0.17"
+string-interner = "0.14"
 fxhash = "0.2"

nac3ast/src/constant.rs

@@ -28,12 +28,12 @@ impl From<bool> for Constant {
 }
 impl From<i32> for Constant {
     fn from(i: i32) -> Constant {
-        Self::Int(i128::from(i))
+        Self::Int(i as i128)
     }
 }
 impl From<i64> for Constant {
     fn from(i: i64) -> Constant {
-        Self::Int(i128::from(i))
+        Self::Int(i as i128)
     }
 }
 
@@ -50,7 +50,6 @@ pub enum ConversionFlag {
 }
 
 impl ConversionFlag {
-    #[must_use]
     pub fn try_from_byte(b: u8) -> Option<Self> {
         match b {
             b's' => Some(Self::Str),
@@ -70,7 +69,6 @@ pub struct ConstantOptimizer {
 #[cfg(feature = "constant-optimization")]
 impl ConstantOptimizer {
     #[inline]
-    #[must_use]
     pub fn new() -> Self {
         Self { _priv: () }
     }
@@ -87,22 +85,33 @@ impl<U> crate::fold::Fold<U> for ConstantOptimizer {
     fn fold_expr(&mut self, node: crate::Expr<U>) -> Result<crate::Expr<U>, Self::Error> {
         match node.node {
             crate::ExprKind::Tuple { elts, ctx } => {
-                let elts =
+                let elts = elts
-                    elts.into_iter().map(|x| self.fold_expr(x)).collect::<Result<Vec<_>, _>>()?;
+                    .into_iter()
-                let expr =
+                    .map(|x| self.fold_expr(x))
-                    if elts.iter().all(|e| matches!(e.node, crate::ExprKind::Constant { .. })) {
+                    .collect::<Result<Vec<_>, _>>()?;
-                        let tuple = elts
+                let expr = if elts
-                            .into_iter()
+                    .iter()
-                            .map(|e| match e.node {
+                    .all(|e| matches!(e.node, crate::ExprKind::Constant { .. }))
-                                crate::ExprKind::Constant { value, .. } => value,
+                {
-                                _ => unreachable!(),
+                    let tuple = elts
-                            })
+                        .into_iter()
-                            .collect();
+                        .map(|e| match e.node {
-                        crate::ExprKind::Constant { value: Constant::Tuple(tuple), kind: None }
+                            crate::ExprKind::Constant { value, .. } => value,
-                    } else {
+                            _ => unreachable!(),
-                        crate::ExprKind::Tuple { elts, ctx }
+                        })
-                    };
+                        .collect();
-                Ok(crate::Expr { node: expr, custom: node.custom, location: node.location })
+                    crate::ExprKind::Constant {
+                        value: Constant::Tuple(tuple),
+                        kind: None,
+                    }
+                } else {
+                    crate::ExprKind::Tuple { elts, ctx }
+                };
+                Ok(crate::Expr {
+                    node: expr,
+                    custom: node.custom,
+                    location: node.location,
+                })
             }
             _ => crate::fold::fold_expr(self, node),
         }
@@ -118,7 +127,7 @@ mod tests {
         use crate::fold::Fold;
         use crate::*;
 
-        let location = Location::new(0, 0, FileName::default());
+        let location = Location::new(0, 0, Default::default());
         let custom = ();
         let ast = Located {
             location,
@@ -129,12 +138,18 @@ mod tests {
                     Located {
                         location,
                         custom,
-                        node: ExprKind::Constant { value: 1.into(), kind: None },
+                        node: ExprKind::Constant {
+                            value: 1.into(),
+                            kind: None,
+                        },
                     },
                     Located {
                         location,
                         custom,
-                        node: ExprKind::Constant { value: 2.into(), kind: None },
+                        node: ExprKind::Constant {
+                            value: 2.into(),
+                            kind: None,
+                        },
                     },
                     Located {
                         location,
@@ -145,17 +160,26 @@ mod tests {
                                 Located {
                                     location,
                                     custom,
-                                    node: ExprKind::Constant { value: 3.into(), kind: None },
+                                    node: ExprKind::Constant {
+                                        value: 3.into(),
+                                        kind: None,
+                                    },
                                 },
                                 Located {
                                     location,
                                     custom,
-                                    node: ExprKind::Constant { value: 4.into(), kind: None },
+                                    node: ExprKind::Constant {
+                                        value: 4.into(),
+                                        kind: None,
+                                    },
                                 },
                                 Located {
                                     location,
                                     custom,
-                                    node: ExprKind::Constant { value: 5.into(), kind: None },
+                                    node: ExprKind::Constant {
+                                        value: 5.into(),
+                                        kind: None,
+                                    },
                                 },
                             ],
                         },
@@ -163,7 +187,9 @@ mod tests {
                 ],
             },
         };
-        let new_ast = ConstantOptimizer::new().fold_expr(ast).unwrap_or_else(|e| match e {});
+        let new_ast = ConstantOptimizer::new()
+            .fold_expr(ast)
+            .unwrap_or_else(|e| match e {});
         assert_eq!(
             new_ast,
             Located {
@@ -173,7 +199,11 @@ mod tests {
                     value: Constant::Tuple(vec![
                         1.into(),
                         2.into(),
-                        Constant::Tuple(vec![3.into(), 4.into(), 5.into(),])
+                        Constant::Tuple(vec![
+                            3.into(),
+                            4.into(),
+                            5.into(),
+                        ])
                     ]),
                     kind: None
                 },

nac3ast/src/fold_helpers.rs

@@ -64,4 +64,11 @@ macro_rules! simple_fold {
     };
 }
 
-simple_fold!(usize, String, bool, StrRef, constant::Constant, constant::ConversionFlag);
+simple_fold!(
+    usize,
+    String,
+    bool,
+    StrRef,
+    constant::Constant,
+    constant::ConversionFlag
+);

nac3ast/src/impls.rs

@@ -2,7 +2,6 @@ use crate::{Constant, ExprKind};
 
 impl<U> ExprKind<U> {
     /// Returns a short name for the node suitable for use in error messages.
-    #[must_use]
     pub fn name(&self) -> &'static str {
         match self {
             ExprKind::BoolOp { .. } | ExprKind::BinOp { .. } | ExprKind::UnaryOp { .. } => {
@@ -35,7 +34,10 @@ impl<U> ExprKind<U> {
             ExprKind::Starred { .. } => "starred",
             ExprKind::Slice { .. } => "slice",
             ExprKind::JoinedStr { values } => {
-                if values.iter().any(|e| matches!(e.node, ExprKind::JoinedStr { .. })) {
+                if values
+                    .iter()
+                    .any(|e| matches!(e.node, ExprKind::JoinedStr { .. }))
+                {
                     "f-string expression"
                 } else {
                     "literal"

nac3ast/src/lib.rs

@@ -1,12 +1,5 @@
-#![deny(future_incompatible, let_underscore, nonstandard_style, clippy::all)]
+#[macro_use]
-#![warn(clippy::pedantic)]
+extern crate lazy_static;
-#![allow(
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::too_many_lines,
-    clippy::wildcard_imports
-)]
 
 mod ast_gen;
 mod constant;
@@ -16,6 +9,6 @@ mod impls;
 mod location;
 
 pub use ast_gen::*;
-pub use location::{FileName, Location};
+pub use location::{Location, FileName};
 
 pub type Suite<U = ()> = Vec<Stmt<U>>;

nac3ast/src/location.rs

@@ -1,6 +1,6 @@
 //! Datatypes to support source location information.
-use crate::ast_gen::StrRef;
 use std::cmp::Ordering;
+use crate::ast_gen::StrRef;
 use std::fmt;
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
@@ -22,7 +22,7 @@ impl From<String> for FileName {
 pub struct Location {
     pub row: usize,
     pub column: usize,
-    pub file: FileName,
+    pub file: FileName
 }
 
 impl fmt::Display for Location {
@@ -35,12 +35,12 @@ impl Ord for Location {
     fn cmp(&self, other: &Self) -> Ordering {
         let file_cmp = self.file.0.to_string().cmp(&other.file.0.to_string());
         if file_cmp != Ordering::Equal {
-            return file_cmp;
+            return file_cmp
         }
 
         let row_cmp = self.row.cmp(&other.row);
         if row_cmp != Ordering::Equal {
-            return row_cmp;
+            return row_cmp
         }
 
         self.column.cmp(&other.column)
@@ -76,22 +76,23 @@ impl Location {
                 )
             }
         }
-        Visualize { loc: *self, line, desc }
+        Visualize {
+            loc: *self,
+            line,
+            desc,
+        }
     }
 }
 
 impl Location {
-    #[must_use]
     pub fn new(row: usize, column: usize, file: FileName) -> Self {
         Location { row, column, file }
     }
 
-    #[must_use]
     pub fn row(&self) -> usize {
         self.row
     }
 
-    #[must_use]
     pub fn column(&self) -> usize {
         self.column
     }

nac3core/Cargo.toml

@@ -4,26 +4,17 @@ version = "0.1.0"
 authors = ["M-Labs"]
 edition = "2021"
 
-[features]
-default = ["derive"]
-derive = ["dep:nac3core_derive"]
-no-escape-analysis = []
-
 [dependencies]
-itertools = "0.13"
+itertools = "0.12"
 crossbeam = "0.8"
-indexmap = "2.6"
 parking_lot = "0.12"
-rayon = "1.10"
+rayon = "1.5"
-nac3core_derive = { path = "nac3core_derive", optional = true }
 nac3parser = { path = "../nac3parser" }
-strum = "0.26"
-strum_macros = "0.26"
 
 [dependencies.inkwell]
-version = "0.5"
+version = "0.2"
 default-features = false
-features = ["llvm14-0-prefer-dynamic", "target-x86", "target-arm", "target-riscv", "no-libffi-linking"]
+features = ["llvm14-0", "target-x86", "target-arm", "target-riscv", "no-libffi-linking"]
 
 [dev-dependencies]
 test-case = "1.2.0"

nac3core/build.rs

@@ -1,3 +1,4 @@
+use regex::Regex;
 use std::{
     env,
     fs::File,
@@ -6,58 +7,35 @@ use std::{
     process::{Command, Stdio},
 };
 
-use regex::Regex;
-
 fn main() {
-    let out_dir = env::var("OUT_DIR").unwrap();
+    const FILE: &str = "src/codegen/irrt/irrt.c";
-    let out_dir = Path::new(&out_dir);
-    let irrt_dir = Path::new("irrt");
-
-    let irrt_cpp_path = irrt_dir.join("irrt.cpp");
 
     /*
      * HACK: Sadly, clang doesn't let us emit generic LLVM bitcode.
      * Compiling for WASM32 and filtering the output with regex is the closest we can get.
      */
-    let mut flags: Vec<&str> = vec![
+    const FLAG: &[&str] = &[
         "--target=wasm32",
-        "-x",
+        FILE,
-        "c++",
+        "-O3",
-        "-std=c++20",
-        "-fno-discard-value-names",
-        "-fno-exceptions",
-        "-fno-rtti",
         "-emit-llvm",
         "-S",
         "-Wall",
         "-Wextra",
         "-o",
         "-",
-        "-I",
-        irrt_dir.to_str().unwrap(),
-        irrt_cpp_path.to_str().unwrap(),
     ];
 
-    match env::var("PROFILE").as_deref() {
+    println!("cargo:rerun-if-changed={FILE}");
-        Ok("debug") => {
+    let out_dir = env::var("OUT_DIR").unwrap();
-            flags.push("-O0");
+    let out_path = Path::new(&out_dir);
-            flags.push("-DIRRT_DEBUG_ASSERT");
-        }
-        Ok("release") => {
-            flags.push("-O3");
-        }
-        flavor => panic!("Unknown or missing build flavor {flavor:?}"),
-    }
 
-    // Tell Cargo to rerun if any file under `irrt_dir` (recursive) changes
-    println!("cargo:rerun-if-changed={}", irrt_dir.to_str().unwrap());
-
-    // Compile IRRT and capture the LLVM IR output
     let output = Command::new("clang-irrt")
-        .args(flags)
+        .args(FLAG)
         .output()
-        .inspect(|o| {
+        .map(|o| {
             assert!(o.status.success(), "{}", std::str::from_utf8(&o.stderr).unwrap());
+            o
         })
         .unwrap();
 
@@ -65,17 +43,7 @@ fn main() {
     let output = std::str::from_utf8(&output.stdout).unwrap().replace("\r\n", "\n");
     let mut filtered_output = String::with_capacity(output.len());
 
-    // Filter out irrelevant IR
+    let regex_filter = Regex::new(r"(?ms:^define.*?\}$)|(?m:^declare.*?$)").unwrap();
-    //
-    // Regex:
-    // - `(?ms:^define.*?\}$)` captures LLVM `define` blocks
-    // - `(?m:^declare.*?$)` captures LLVM `declare` lines
-    // - `(?m:^%.+?=\s*type\s*\{.+?\}$)` captures LLVM `type` declarations
-    // - `(?m:^@.+?=.+$)` captures global constants
-    let regex_filter = Regex::new(
-        r"(?ms:^define.*?\}$)|(?m:^declare.*?$)|(?m:^%.+?=\s*type\s*\{.+?\}$)|(?m:^@.+?=.+$)",
-    )
-    .unwrap();
     for f in regex_filter.captures_iter(&output) {
         assert_eq!(f.len(), 1);
         filtered_output.push_str(&f[0]);
@@ -86,22 +54,18 @@ fn main() {
         .unwrap()
         .replace_all(&filtered_output, "");
 
-    // For debugging
+    println!("cargo:rerun-if-env-changed=DEBUG_DUMP_IRRT");
-    // Doing `DEBUG_DUMP_IRRT=1 cargo build -p nac3core` dumps the LLVM IR generated
+    if env::var("DEBUG_DUMP_IRRT").is_ok() {
-    const DEBUG_DUMP_IRRT: &str = "DEBUG_DUMP_IRRT";
+        let mut file = File::create(out_path.join("irrt.ll")).unwrap();
-    println!("cargo:rerun-if-env-changed={DEBUG_DUMP_IRRT}");
-    if env::var(DEBUG_DUMP_IRRT).is_ok() {
-        let mut file = File::create(out_dir.join("irrt.ll")).unwrap();
         file.write_all(output.as_bytes()).unwrap();
-
+        let mut file = File::create(out_path.join("irrt-filtered.ll")).unwrap();
-        let mut file = File::create(out_dir.join("irrt-filtered.ll")).unwrap();
         file.write_all(filtered_output.as_bytes()).unwrap();
     }
 
     let mut llvm_as = Command::new("llvm-as-irrt")
         .stdin(Stdio::piped())
         .arg("-o")
-        .arg(out_dir.join("irrt.bc"))
+        .arg(out_path.join("irrt.bc"))
         .spawn()
         .unwrap();
     llvm_as.stdin.as_mut().unwrap().write_all(filtered_output.as_bytes()).unwrap();

nac3core/irrt/irrt.cpp

@@ -1,5 +0,0 @@
-#include "irrt/exception.hpp"
-#include "irrt/list.hpp"
-#include "irrt/math.hpp"
-#include "irrt/ndarray.hpp"
-#include "irrt/slice.hpp"

nac3core/irrt/irrt/cslice.hpp

@@ -1,9 +0,0 @@
-#pragma once
-
-#include "irrt/int_types.hpp"
-
-template<typename SizeT>
-struct CSlice {
-    void* base;
-    SizeT len;
-};

nac3core/irrt/irrt/debug.hpp

@@ -1,25 +0,0 @@
-#pragma once
-
-// Set in nac3core/build.rs
-#ifdef IRRT_DEBUG_ASSERT
-#define IRRT_DEBUG_ASSERT_BOOL true
-#else
-#define IRRT_DEBUG_ASSERT_BOOL false
-#endif
-
-#define raise_debug_assert(SizeT, msg, param1, param2, param3) \
-    raise_exception(SizeT, EXN_ASSERTION_ERROR, "IRRT debug assert failed: " msg, param1, param2, param3)
-
-#define debug_assert_eq(SizeT, lhs, rhs)                                           \
-    if constexpr (IRRT_DEBUG_ASSERT_BOOL) {                                        \
-        if ((lhs) != (rhs)) {                                                      \
-            raise_debug_assert(SizeT, "LHS = {0}. RHS = {1}", lhs, rhs, NO_PARAM); \
-        }                                                                          \
-    }
-
-#define debug_assert(SizeT, expr)                                                  \
-    if constexpr (IRRT_DEBUG_ASSERT_BOOL) {                                        \
-        if (!(expr)) {                                                             \
-            raise_debug_assert(SizeT, "Got false.", NO_PARAM, NO_PARAM, NO_PARAM); \
-        }                                                                          \
-    }

nac3core/irrt/irrt/exception.hpp

@@ -1,85 +0,0 @@
-#pragma once
-
-#include "irrt/cslice.hpp"
-#include "irrt/int_types.hpp"
-
-/**
- * @brief The int type of ARTIQ exception IDs.
- */
-using ExceptionId = int32_t;
-
-/*
- * Set of exceptions C++ IRRT can use.
- * Must be synchronized with `setup_irrt_exceptions` in `nac3core/src/codegen/irrt/mod.rs`.
- */
-extern "C" {
-ExceptionId EXN_INDEX_ERROR;
-ExceptionId EXN_VALUE_ERROR;
-ExceptionId EXN_ASSERTION_ERROR;
-ExceptionId EXN_TYPE_ERROR;
-}
-
-/**
- * @brief Extern function to `__nac3_raise`
- *
- * The parameter `err` could be `Exception<int32_t>` or `Exception<int64_t>`. The caller
- * must make sure to pass `Exception`s with the correct `SizeT` depending on the `size_t` of the runtime.
- */
-extern "C" void __nac3_raise(void* err);
-
-namespace {
-/**
- * @brief NAC3's Exception struct
- */
-template<typename SizeT>
-struct Exception {
-    ExceptionId id;
-    CSlice<SizeT> filename;
-    int32_t line;
-    int32_t column;
-    CSlice<SizeT> function;
-    CSlice<SizeT> msg;
-    int64_t params[3];
-};
-
-constexpr int64_t NO_PARAM = 0;
-
-template<typename SizeT>
-void _raise_exception_helper(ExceptionId id,
-                             const char* filename,
-                             int32_t line,
-                             const char* function,
-                             const char* msg,
-                             int64_t param0,
-                             int64_t param1,
-                             int64_t param2) {
-    Exception<SizeT> e = {
-        .id = id,
-        .filename = {.base = reinterpret_cast<void*>(const_cast<char*>(filename)),
-                     .len = static_cast<SizeT>(__builtin_strlen(filename))},
-        .line = line,
-        .column = 0,
-        .function = {.base = reinterpret_cast<void*>(const_cast<char*>(function)),
-                     .len = static_cast<SizeT>(__builtin_strlen(function))},
-        .msg = {.base = reinterpret_cast<void*>(const_cast<char*>(msg)),
-                .len = static_cast<SizeT>(__builtin_strlen(msg))},
-    };
-    e.params[0] = param0;
-    e.params[1] = param1;
-    e.params[2] = param2;
-    __nac3_raise(reinterpret_cast<void*>(&e));
-    __builtin_unreachable();
-}
-}  // namespace
-
-/**
- * @brief Raise an exception with location details (location in the IRRT source files).
- * @param SizeT The runtime `size_t` type.
- * @param id The ID of the exception to raise.
- * @param msg A global constant C-string of the error message.
- *
- * `param0` to `param2` are optional format arguments of `msg`. They should be set to
- * `NO_PARAM` to indicate they are unused.
- */
-#define raise_exception(SizeT, id, msg, param0, param1, param2) \
-    _raise_exception_helper<SizeT>(id, __FILE__, __LINE__, __FUNCTION__, msg, param0, param1, param2)

nac3core/irrt/irrt/int_types.hpp

@@ -1,27 +0,0 @@
-#pragma once
-
-#if __STDC_VERSION__ >= 202000
-using int8_t = _BitInt(8);
-using uint8_t = unsigned _BitInt(8);
-using int32_t = _BitInt(32);
-using uint32_t = unsigned _BitInt(32);
-using int64_t = _BitInt(64);
-using uint64_t = unsigned _BitInt(64);
-#else
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-type"
-using int8_t = _ExtInt(8);
-using uint8_t = unsigned _ExtInt(8);
-using int32_t = _ExtInt(32);
-using uint32_t = unsigned _ExtInt(32);
-using int64_t = _ExtInt(64);
-using uint64_t = unsigned _ExtInt(64);
-#pragma clang diagnostic pop
-
-#endif
-
-// NDArray indices are always `uint32_t`.
-using NDIndex = uint32_t;
-// The type of an index or a value describing the length of a range/slice is always `int32_t`.
-using SliceIndex = int32_t;

nac3core/irrt/irrt/list.hpp

@@ -1,81 +0,0 @@
-#pragma once
-
-#include "irrt/int_types.hpp"
-#include "irrt/math_util.hpp"
-
-extern "C" {
-// Handle list assignment and dropping part of the list when
-// both dest_step and src_step are +1.
-// - All the index must *not* be out-of-bound or negative,
-// - The end index is *inclusive*,
-// - The length of src and dest slice size should already
-// be checked: if dest.step == 1 then len(src) <= len(dest) else len(src) == len(dest)
-SliceIndex __nac3_list_slice_assign_var_size(SliceIndex dest_start,
-                                             SliceIndex dest_end,
-                                             SliceIndex dest_step,
-                                             void* dest_arr,
-                                             SliceIndex dest_arr_len,
-                                             SliceIndex src_start,
-                                             SliceIndex src_end,
-                                             SliceIndex src_step,
-                                             void* src_arr,
-                                             SliceIndex src_arr_len,
-                                             const SliceIndex size) {
-    /* if dest_arr_len == 0, do nothing since we do not support extending list */
-    if (dest_arr_len == 0)
-        return dest_arr_len;
-    /* if both step is 1, memmove directly, handle the dropping of the list, and shrink size */
-    if (src_step == dest_step && dest_step == 1) {
-        const SliceIndex src_len = (src_end >= src_start) ? (src_end - src_start + 1) : 0;
-        const SliceIndex dest_len = (dest_end >= dest_start) ? (dest_end - dest_start + 1) : 0;
-        if (src_len > 0) {
-            __builtin_memmove(static_cast<uint8_t*>(dest_arr) + dest_start * size,
-                              static_cast<uint8_t*>(src_arr) + src_start * size, src_len * size);
-        }
-        if (dest_len > 0) {
-            /* dropping */
-            __builtin_memmove(static_cast<uint8_t*>(dest_arr) + (dest_start + src_len) * size,
-                              static_cast<uint8_t*>(dest_arr) + (dest_end + 1) * size,
-                              (dest_arr_len - dest_end - 1) * size);
-        }
-        /* shrink size */
-        return dest_arr_len - (dest_len - src_len);
-    }
-    /* if two range overlaps, need alloca */
-    uint8_t need_alloca = (dest_arr == src_arr)
-                          && !(max(dest_start, dest_end) < min(src_start, src_end)
-                               || max(src_start, src_end) < min(dest_start, dest_end));
-    if (need_alloca) {
-        void* tmp = __builtin_alloca(src_arr_len * size);
-        __builtin_memcpy(tmp, src_arr, src_arr_len * size);
-        src_arr = tmp;
-    }
-    SliceIndex src_ind = src_start;
-    SliceIndex dest_ind = dest_start;
-    for (; (src_step > 0) ? (src_ind <= src_end) : (src_ind >= src_end); src_ind += src_step, dest_ind += dest_step) {
-        /* for constant optimization */
-        if (size == 1) {
-            __builtin_memcpy(static_cast<uint8_t*>(dest_arr) + dest_ind, static_cast<uint8_t*>(src_arr) + src_ind, 1);
-        } else if (size == 4) {
-            __builtin_memcpy(static_cast<uint8_t*>(dest_arr) + dest_ind * 4,
-                             static_cast<uint8_t*>(src_arr) + src_ind * 4, 4);
-        } else if (size == 8) {
-            __builtin_memcpy(static_cast<uint8_t*>(dest_arr) + dest_ind * 8,
-                             static_cast<uint8_t*>(src_arr) + src_ind * 8, 8);
-        } else {
-            /* memcpy for var size, cannot overlap after previous alloca */
-            __builtin_memcpy(static_cast<uint8_t*>(dest_arr) + dest_ind * size,
-                             static_cast<uint8_t*>(src_arr) + src_ind * size, size);
-        }
-    }
-    /* only dest_step == 1 can we shrink the dest list. */
-    /* size should be ensured prior to calling this function */
-    if (dest_step == 1 && dest_end >= dest_start) {
-        __builtin_memmove(static_cast<uint8_t*>(dest_arr) + dest_ind * size,
-                          static_cast<uint8_t*>(dest_arr) + (dest_end + 1) * size,
-                          (dest_arr_len - dest_end - 1) * size);
-        return dest_arr_len - (dest_end - dest_ind) - 1;
-    }
-    return dest_arr_len;
-}
-}  // extern "C"

nac3core/irrt/irrt/math.hpp

@@ -1,93 +0,0 @@
-#pragma once
-
-namespace {
-// adapted from GNU Scientific Library: https://git.savannah.gnu.org/cgit/gsl.git/tree/sys/pow_int.c
-// need to make sure `exp >= 0` before calling this function
-template<typename T>
-T __nac3_int_exp_impl(T base, T exp) {
-    T res = 1;
-    /* repeated squaring method */
-    do {
-        if (exp & 1) {
-            res *= base; /* for n odd */
-        }
-        exp >>= 1;
-        base *= base;
-    } while (exp);
-    return res;
-}
-}  // namespace
-
-#define DEF_nac3_int_exp_(T)                   \
-    T __nac3_int_exp_##T(T base, T exp) {      \
-        return __nac3_int_exp_impl(base, exp); \
-    }
-
-extern "C" {
-
-// Putting semicolons here to make clang-format not reformat this into
-// a stair shape.
-DEF_nac3_int_exp_(int32_t);
-DEF_nac3_int_exp_(int64_t);
-DEF_nac3_int_exp_(uint32_t);
-DEF_nac3_int_exp_(uint64_t);
-
-int32_t __nac3_isinf(double x) {
-    return __builtin_isinf(x);
-}
-
-int32_t __nac3_isnan(double x) {
-    return __builtin_isnan(x);
-}
-
-double tgamma(double arg);
-
-double __nac3_gamma(double z) {
-    // Handling for denormals
-    //     | x                 | Python gamma(x) | C tgamma(x) |
-    // --- | ----------------- | --------------- | ----------- |
-    // (1) | nan               | nan             | nan         |
-    // (2) | -inf              | -inf            | inf         |
-    // (3) | inf               | inf             | inf         |
-    // (4) | 0.0               | inf             | inf         |
-    // (5) | {-1.0, -2.0, ...} | inf             | nan         |
-
-    // (1)-(3)
-    if (__builtin_isinf(z) || __builtin_isnan(z)) {
-        return z;
-    }
-
-    double v = tgamma(z);
-
-    // (4)-(5)
-    return __builtin_isinf(v) || __builtin_isnan(v) ? __builtin_inf() : v;
-}
-
-double lgamma(double arg);
-
-double __nac3_gammaln(double x) {
-    // libm's handling of value overflows differs from scipy:
-    // - scipy: gammaln(-inf) -> -inf
-    // - libm : lgamma(-inf) -> inf
-
-    if (__builtin_isinf(x)) {
-        return x;
-    }
-
-    return lgamma(x);
-}
-
-double j0(double x);
-
-double __nac3_j0(double x) {
-    // libm's handling of value overflows differs from scipy:
-    // - scipy: j0(inf) -> nan
-    // - libm : j0(inf) -> 0.0
-
-    if (__builtin_isinf(x)) {
-        return __builtin_nan("");
-    }
-
-    return j0(x);
-}
-}  // namespace

nac3core/irrt/irrt/math_util.hpp

@@ -1,13 +0,0 @@
-#pragma once
-
-namespace {
-template<typename T>
-const T& max(const T& a, const T& b) {
-    return a > b ? a : b;
-}
-
-template<typename T>
-const T& min(const T& a, const T& b) {
-    return a > b ? b : a;
-}
-}  // namespace

nac3core/irrt/irrt/ndarray.hpp

@@ -1,144 +0,0 @@
-#pragma once
-
-#include "irrt/int_types.hpp"
-
-namespace {
-template<typename SizeT>
-SizeT __nac3_ndarray_calc_size_impl(const SizeT* list_data, SizeT list_len, SizeT begin_idx, SizeT end_idx) {
-    __builtin_assume(end_idx <= list_len);
-
-    SizeT num_elems = 1;
-    for (SizeT i = begin_idx; i < end_idx; ++i) {
-        SizeT val = list_data[i];
-        __builtin_assume(val > 0);
-        num_elems *= val;
-    }
-    return num_elems;
-}
-
-template<typename SizeT>
-void __nac3_ndarray_calc_nd_indices_impl(SizeT index, const SizeT* dims, SizeT num_dims, NDIndex* idxs) {
-    SizeT stride = 1;
-    for (SizeT dim = 0; dim < num_dims; dim++) {
-        SizeT i = num_dims - dim - 1;
-        __builtin_assume(dims[i] > 0);
-        idxs[i] = (index / stride) % dims[i];
-        stride *= dims[i];
-    }
-}
-
-template<typename SizeT>
-SizeT __nac3_ndarray_flatten_index_impl(const SizeT* dims, SizeT num_dims, const NDIndex* indices, SizeT num_indices) {
-    SizeT idx = 0;
-    SizeT stride = 1;
-    for (SizeT i = 0; i < num_dims; ++i) {
-        SizeT ri = num_dims - i - 1;
-        if (ri < num_indices) {
-            idx += stride * indices[ri];
-        }
-
-        __builtin_assume(dims[i] > 0);
-        stride *= dims[ri];
-    }
-    return idx;
-}
-
-template<typename SizeT>
-void __nac3_ndarray_calc_broadcast_impl(const SizeT* lhs_dims,
-                                        SizeT lhs_ndims,
-                                        const SizeT* rhs_dims,
-                                        SizeT rhs_ndims,
-                                        SizeT* out_dims) {
-    SizeT max_ndims = lhs_ndims > rhs_ndims ? lhs_ndims : rhs_ndims;
-
-    for (SizeT i = 0; i < max_ndims; ++i) {
-        const SizeT* lhs_dim_sz = i < lhs_ndims ? &lhs_dims[lhs_ndims - i - 1] : nullptr;
-        const SizeT* rhs_dim_sz = i < rhs_ndims ? &rhs_dims[rhs_ndims - i - 1] : nullptr;
-        SizeT* out_dim = &out_dims[max_ndims - i - 1];
-
-        if (lhs_dim_sz == nullptr) {
-            *out_dim = *rhs_dim_sz;
-        } else if (rhs_dim_sz == nullptr) {
-            *out_dim = *lhs_dim_sz;
-        } else if (*lhs_dim_sz == 1) {
-            *out_dim = *rhs_dim_sz;
-        } else if (*rhs_dim_sz == 1) {
-            *out_dim = *lhs_dim_sz;
-        } else if (*lhs_dim_sz == *rhs_dim_sz) {
-            *out_dim = *lhs_dim_sz;
-        } else {
-            __builtin_unreachable();
-        }
-    }
-}
-
-template<typename SizeT>
-void __nac3_ndarray_calc_broadcast_idx_impl(const SizeT* src_dims,
-                                            SizeT src_ndims,
-                                            const NDIndex* in_idx,
-                                            NDIndex* out_idx) {
-    for (SizeT i = 0; i < src_ndims; ++i) {
-        SizeT src_i = src_ndims - i - 1;
-        out_idx[src_i] = src_dims[src_i] == 1 ? 0 : in_idx[src_i];
-    }
-}
-}  // namespace
-
-extern "C" {
-uint32_t __nac3_ndarray_calc_size(const uint32_t* list_data, uint32_t list_len, uint32_t begin_idx, uint32_t end_idx) {
-    return __nac3_ndarray_calc_size_impl(list_data, list_len, begin_idx, end_idx);
-}
-
-uint64_t
-__nac3_ndarray_calc_size64(const uint64_t* list_data, uint64_t list_len, uint64_t begin_idx, uint64_t end_idx) {
-    return __nac3_ndarray_calc_size_impl(list_data, list_len, begin_idx, end_idx);
-}
-
-void __nac3_ndarray_calc_nd_indices(uint32_t index, const uint32_t* dims, uint32_t num_dims, NDIndex* idxs) {
-    __nac3_ndarray_calc_nd_indices_impl(index, dims, num_dims, idxs);
-}
-
-void __nac3_ndarray_calc_nd_indices64(uint64_t index, const uint64_t* dims, uint64_t num_dims, NDIndex* idxs) {
-    __nac3_ndarray_calc_nd_indices_impl(index, dims, num_dims, idxs);
-}
-
-uint32_t
-__nac3_ndarray_flatten_index(const uint32_t* dims, uint32_t num_dims, const NDIndex* indices, uint32_t num_indices) {
-    return __nac3_ndarray_flatten_index_impl(dims, num_dims, indices, num_indices);
-}
-
-uint64_t
-__nac3_ndarray_flatten_index64(const uint64_t* dims, uint64_t num_dims, const NDIndex* indices, uint64_t num_indices) {
-    return __nac3_ndarray_flatten_index_impl(dims, num_dims, indices, num_indices);
-}
-
-void __nac3_ndarray_calc_broadcast(const uint32_t* lhs_dims,
-                                   uint32_t lhs_ndims,
-                                   const uint32_t* rhs_dims,
-                                   uint32_t rhs_ndims,
-                                   uint32_t* out_dims) {
-    return __nac3_ndarray_calc_broadcast_impl(lhs_dims, lhs_ndims, rhs_dims, rhs_ndims, out_dims);
-}
-
-void __nac3_ndarray_calc_broadcast64(const uint64_t* lhs_dims,
-                                     uint64_t lhs_ndims,
-                                     const uint64_t* rhs_dims,
-                                     uint64_t rhs_ndims,
-                                     uint64_t* out_dims) {
-    return __nac3_ndarray_calc_broadcast_impl(lhs_dims, lhs_ndims, rhs_dims, rhs_ndims, out_dims);
-}
-
-void __nac3_ndarray_calc_broadcast_idx(const uint32_t* src_dims,
-                                       uint32_t src_ndims,
-                                       const NDIndex* in_idx,
-                                       NDIndex* out_idx) {
-    __nac3_ndarray_calc_broadcast_idx_impl(src_dims, src_ndims, in_idx, out_idx);
-}
-
-void __nac3_ndarray_calc_broadcast_idx64(const uint64_t* src_dims,
-                                         uint64_t src_ndims,
-                                         const NDIndex* in_idx,
-                                         NDIndex* out_idx) {
-    __nac3_ndarray_calc_broadcast_idx_impl(src_dims, src_ndims, in_idx, out_idx);
-}
-}  // namespace

nac3core/irrt/irrt/slice.hpp

@@ -1,28 +0,0 @@
-#pragma once
-
-#include "irrt/int_types.hpp"
-
-extern "C" {
-SliceIndex __nac3_slice_index_bound(SliceIndex i, const SliceIndex len) {
-    if (i < 0) {
-        i = len + i;
-    }
-    if (i < 0) {
-        return 0;
-    } else if (i > len) {
-        return len;
-    }
-    return i;
-}
-
-SliceIndex __nac3_range_slice_len(const SliceIndex start, const SliceIndex end, const SliceIndex step) {
-    SliceIndex diff = end - start;
-    if (diff > 0 && step > 0) {
-        return ((diff - 1) / step) + 1;
-    } else if (diff < 0 && step < 0) {
-        return ((diff + 1) / step) + 1;
-    } else {
-        return 0;
-    }
-}
-}  // namespace

nac3core/nac3core_derive/Cargo.toml

@@ -1,21 +0,0 @@
-[package]
-name = "nac3core_derive"
-version = "0.1.0"
-edition = "2021"
-
-[lib]
-proc-macro = true
-
-[[test]]
-name = "structfields_tests"
-path = "tests/structfields_test.rs"
-
-[dev-dependencies]
-nac3core = { path = ".." }
-trybuild = { version = "1.0", features = ["diff"] }
-
-[dependencies]
-proc-macro2 = "1.0"
-proc-macro-error = "1.0"
-syn = "2.0"
-quote = "1.0"

nac3core/nac3core_derive/src/lib.rs

@@ -1,320 +0,0 @@
-use proc_macro::TokenStream;
-use proc_macro_error::{abort, proc_macro_error};
-use quote::quote;
-use syn::{
-    parse_macro_input, spanned::Spanned, Data, DataStruct, Expr, ExprField, ExprMethodCall,
-    ExprPath, GenericArgument, Ident, LitStr, Path, PathArguments, Type, TypePath,
-};
-
-/// Extracts all generic arguments of a [`Type`] into a [`Vec`].
-///
-/// Returns [`Some`] of a possibly-empty [`Vec`] if the path of `ty` matches with
-/// `expected_ty_name`, otherwise returns [`None`].
-fn extract_generic_args(expected_ty_name: &'static str, ty: &Type) -> Option<Vec<GenericArgument>> {
-    let Type::Path(TypePath { qself: None, path, .. }) = ty else {
-        return None;
-    };
-
-    let segments = &path.segments;
-    if segments.len() != 1 {
-        return None;
-    };
-
-    let segment = segments.iter().next().unwrap();
-    if segment.ident != expected_ty_name {
-        return None;
-    }
-
-    let PathArguments::AngleBracketed(path_args) = &segment.arguments else {
-        return Some(Vec::new());
-    };
-    let args = &path_args.args;
-
-    Some(args.iter().cloned().collect::<Vec<_>>())
-}
-
-/// Maps a `path` matching one of the `target_idents` into the `replacement` [`Ident`].
-fn map_path_to_ident(path: &Path, target_idents: &[&str], replacement: &str) -> Option<Ident> {
-    path.require_ident()
-        .ok()
-        .filter(|ident| target_idents.iter().any(|target| ident == target))
-        .map(|ident| Ident::new(replacement, ident.span()))
-}
-
-/// Extracts the left-hand side of a dot-expression.
-fn extract_dot_operand(expr: &Expr) -> Option<&Expr> {
-    match expr {
-        Expr::MethodCall(ExprMethodCall { receiver: operand, .. })
-        | Expr::Field(ExprField { base: operand, .. }) => Some(operand),
-        _ => None,
-    }
-}
-
-/// Replaces the top-level receiver of a dot-expression with an [`Ident`], returning `Some(&mut expr)` if the
-/// replacement is performed.
-///
-/// The top-level receiver is the left-most receiver expression, e.g. the top-level receiver of `a.b.c.foo()` is `a`.
-fn replace_top_level_receiver(expr: &mut Expr, ident: Ident) -> Option<&mut Expr> {
-    if let Expr::MethodCall(ExprMethodCall { receiver: operand, .. })
-    | Expr::Field(ExprField { base: operand, .. }) = expr
-    {
-        return if extract_dot_operand(operand).is_some() {
-            if replace_top_level_receiver(operand, ident).is_some() {
-                Some(expr)
-            } else {
-                None
-            }
-        } else {
-            *operand = Box::new(Expr::Path(ExprPath {
-                attrs: Vec::default(),
-                qself: None,
-                path: ident.into(),
-            }));
-
-            Some(expr)
-        };
-    }
-
-    None
-}
-
-/// Iterates all operands to the left-hand side of the `.` of an [expression][`Expr`], i.e. the container operand of all
-/// [`Expr::Field`] and the receiver operand of all [`Expr::MethodCall`].
-///
-/// The iterator will return the operand expressions in reverse order of appearance. For example, `a.b.c.func()` will
-/// return `vec![c, b, a]`.
-fn iter_dot_operands(expr: &Expr) -> impl Iterator<Item = &Expr> {
-    let mut o = extract_dot_operand(expr);
-
-    std::iter::from_fn(move || {
-        let this = o;
-        o = o.as_ref().and_then(|o| extract_dot_operand(o));
-
-        this
-    })
-}
-
-/// Normalizes a value expression for use when creating an instance of this structure, returning a
-/// [`proc_macro2::TokenStream`] of tokens representing the normalized expression.
-fn normalize_value_expr(expr: &Expr) -> proc_macro2::TokenStream {
-    match &expr {
-        Expr::Path(ExprPath { qself: None, path, .. }) => {
-            if let Some(ident) = map_path_to_ident(path, &["usize", "size_t"], "llvm_usize") {
-                quote! { #ident }
-            } else {
-                abort!(
-                    path,
-                    format!(
-                        "Expected one of `size_t`, `usize`, or an implicit call expression in #[value_type(...)], found {}", 
-                        quote!(#expr).to_string(),
-                    )
-                )
-            }
-        }
-
-        Expr::Call(_) => {
-            quote! { ctx.#expr }
-        }
-
-        Expr::MethodCall(_) => {
-            let base_receiver = iter_dot_operands(expr).last();
-
-            match base_receiver {
-                // `usize.{...}`, `size_t.{...}` -> Rewrite the identifiers to `llvm_usize`
-                Some(Expr::Path(ExprPath { qself: None, path, .. }))
-                    if map_path_to_ident(path, &["usize", "size_t"], "llvm_usize").is_some() =>
-                {
-                    let ident =
-                        map_path_to_ident(path, &["usize", "size_t"], "llvm_usize").unwrap();
-
-                    let mut expr = expr.clone();
-                    let expr = replace_top_level_receiver(&mut expr, ident).unwrap();
-
-                    quote!(#expr)
-                }
-
-                // `ctx.{...}`, `context.{...}` -> Rewrite the identifiers to `ctx`
-                Some(Expr::Path(ExprPath { qself: None, path, .. }))
-                    if map_path_to_ident(path, &["ctx", "context"], "ctx").is_some() =>
-                {
-                    let ident = map_path_to_ident(path, &["ctx", "context"], "ctx").unwrap();
-
-                    let mut expr = expr.clone();
-                    let expr = replace_top_level_receiver(&mut expr, ident).unwrap();
-
-                    quote!(#expr)
-                }
-
-                // No reserved identifier prefix -> Prepend `ctx.` to the entire expression
-                _ => quote! { ctx.#expr },
-            }
-        }
-
-        _ => {
-            abort!(
-                expr,
-                format!(
-                    "Expected one of `size_t`, `usize`, or an implicit call expression in #[value_type(...)], found {}", 
-                    quote!(#expr).to_string(),
-                )
-            )
-        }
-    }
-}
-
-/// Derives an implementation of `codegen::types::structure::StructFields`.
-///
-/// The benefit of using `#[derive(StructFields)]` is that all index- or order-dependent logic required by
-/// `impl StructFields` is automatically generated by this implementation, including the field index as required by
-/// `StructField::new` and the fields as returned by `StructFields::to_vec`.
-///
-/// # Prerequisites
-///
-/// In order to derive from [`StructFields`], you must implement (or derive) [`Eq`] and [`Copy`] as required by
-/// `StructFields`.
-///
-/// Moreover, `#[derive(StructFields)]` can only be used for `struct`s with named fields, and may only contain fields
-/// with either `StructField` or [`PhantomData`] types.
-///
-/// # Attributes for [`StructFields`]
-///
-/// Each `StructField` field must be declared with the `#[value_type(...)]` attribute. The argument of `value_type`
-/// accepts one of the following:
-///
-/// - An expression returning an instance of `inkwell::types::BasicType` (with or without the receiver `ctx`/`context`).
-/// For example, `context.i8_type()`, `ctx.i8_type()`, and `i8_type()` all refer to `i8`.
-/// - The reserved identifiers `usize` and `size_t` referring to an `inkwell::types::IntType` of the platform-dependent
-/// integer size. `usize` and `size_t` can also be used as the receiver to other method calls, e.g.
-/// `usize.array_type(3)`.
-///
-/// # Example
-///
-/// The following is an example of an LLVM slice implemented using `#[derive(StructFields)]`.
-///
-/// ```rust,ignore
-/// use nac3core::{
-///     codegen::types::structure::StructField,
-///     inkwell::{
-///         values::{IntValue, PointerValue},
-///         AddressSpace,
-///     },
-/// };
-/// use nac3core_derive::StructFields;
-///
-/// // All classes that implement StructFields must also implement Eq and Copy
-/// #[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-/// pub struct SliceValue<'ctx> {
-///     // Declares ptr have a value type of i8*
-///     //
-///     // Can also be written as `ctx.i8_type().ptr_type(...)` or `context.i8_type().ptr_type(...)`
-///     #[value_type(i8_type().ptr_type(AddressSpace::default()))]
-///     ptr: StructField<'ctx, PointerValue<'ctx>>,
-///
-///     // Declares len have a value type of usize, depending on the target compilation platform
-///     #[value_type(usize)]
-///     len: StructField<'ctx, IntValue<'ctx>>,
-/// }
-/// ```
-#[proc_macro_derive(StructFields, attributes(value_type))]
-#[proc_macro_error]
-pub fn derive(input: TokenStream) -> TokenStream {
-    let input = parse_macro_input!(input as syn::DeriveInput);
-    let ident = &input.ident;
-
-    let Data::Struct(DataStruct { fields, .. }) = &input.data else {
-        abort!(input, "Only structs with named fields are supported");
-    };
-    if let Err(err_span) =
-        fields
-            .iter()
-            .try_for_each(|field| if field.ident.is_some() { Ok(()) } else { Err(field.span()) })
-    {
-        abort!(err_span, "Only structs with named fields are supported");
-    };
-
-    // Check if struct<'ctx>
-    if input.generics.params.len() != 1 {
-        abort!(input.generics, "Expected exactly 1 generic parameter")
-    }
-
-    let phantom_info = fields
-        .iter()
-        .filter(|field| extract_generic_args("PhantomData", &field.ty).is_some())
-        .map(|field| field.ident.as_ref().unwrap())
-        .cloned()
-        .collect::<Vec<_>>();
-
-    let field_info = fields
-        .iter()
-        .filter(|field| extract_generic_args("PhantomData", &field.ty).is_none())
-        .map(|field| {
-            let ident = field.ident.as_ref().unwrap();
-            let ty = &field.ty;
-
-            let Some(_) = extract_generic_args("StructField", ty) else {
-                abort!(field, "Only StructField and PhantomData are allowed")
-            };
-
-            let attrs = &field.attrs;
-            let Some(value_type_attr) =
-                attrs.iter().find(|attr| attr.path().is_ident("value_type"))
-            else {
-                abort!(field, "Expected #[value_type(...)] attribute for field");
-            };
-
-            let Ok(value_type_expr) = value_type_attr.parse_args::<Expr>() else {
-                abort!(value_type_attr, "Expected expression in #[value_type(...)]");
-            };
-
-            let value_expr_toks = normalize_value_expr(&value_type_expr);
-
-            (ident.clone(), value_expr_toks)
-        })
-        .collect::<Vec<_>>();
-
-    // `<*>::new` impl of `StructField` and `PhantomData` for `StructFields::new`
-    let phantoms_create = phantom_info
-        .iter()
-        .map(|id| quote! { #id: ::std::marker::PhantomData })
-        .collect::<Vec<_>>();
-    let fields_create = field_info
-        .iter()
-        .map(|(id, ty)| {
-            let id_lit = LitStr::new(&id.to_string(), id.span());
-            quote! {
-                #id: ::nac3core::codegen::types::structure::StructField::create(
-                    &mut counter,
-                    #id_lit,
-                    #ty,
-                )
-            }
-        })
-        .collect::<Vec<_>>();
-
-    // `.into()` impl of `StructField` for `StructFields::to_vec`
-    let fields_into =
-        field_info.iter().map(|(id, _)| quote! { self.#id.into() }).collect::<Vec<_>>();
-
-    let impl_block = quote! {
-        impl<'ctx> ::nac3core::codegen::types::structure::StructFields<'ctx> for #ident<'ctx> {
-            fn new(ctx: impl ::nac3core::inkwell::context::AsContextRef<'ctx>, llvm_usize: ::nac3core::inkwell::types::IntType<'ctx>) -> Self {
-                let ctx = unsafe { ::nac3core::inkwell::context::ContextRef::new(ctx.as_ctx_ref()) };
-
-                let mut counter = ::nac3core::codegen::types::structure::FieldIndexCounter::default();
-
-                #ident {
-                    #(#fields_create),*
-                    #(#phantoms_create),*
-                }
-            }
-
-            fn to_vec(&self) -> ::std::vec::Vec<(&'static str, ::nac3core::inkwell::types::BasicTypeEnum<'ctx>)> {
-                vec![
-                    #(#fields_into),*
-                ]
-            }
-        }
-    };
-
-    impl_block.into()
-}

nac3core/nac3core_derive/tests/structfields_empty.rs

@@ -1,9 +0,0 @@
-use nac3core_derive::StructFields;
-use std::marker::PhantomData;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct EmptyValue<'ctx> {
-    _phantom: PhantomData<&'ctx ()>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_ndarray.rs

@@ -1,20 +0,0 @@
-use nac3core::{
-    codegen::types::structure::StructField,
-    inkwell::{
-        values::{IntValue, PointerValue},
-        AddressSpace,
-    },
-};
-use nac3core_derive::StructFields;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct NDArrayValue<'ctx> {
-    #[value_type(usize)]
-    ndims: StructField<'ctx, IntValue<'ctx>>,
-    #[value_type(usize.ptr_type(AddressSpace::default()))]
-    shape: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(i8_type().ptr_type(AddressSpace::default()))]
-    data: StructField<'ctx, PointerValue<'ctx>>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_slice.rs

@@ -1,18 +0,0 @@
-use nac3core::{
-    codegen::types::structure::StructField,
-    inkwell::{
-        values::{IntValue, PointerValue},
-        AddressSpace,
-    },
-};
-use nac3core_derive::StructFields;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct SliceValue<'ctx> {
-    #[value_type(i8_type().ptr_type(AddressSpace::default()))]
-    ptr: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(usize)]
-    len: StructField<'ctx, IntValue<'ctx>>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_slice_context.rs

@@ -1,18 +0,0 @@
-use nac3core::{
-    codegen::types::structure::StructField,
-    inkwell::{
-        values::{IntValue, PointerValue},
-        AddressSpace,
-    },
-};
-use nac3core_derive::StructFields;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct SliceValue<'ctx> {
-    #[value_type(context.i8_type().ptr_type(AddressSpace::default()))]
-    ptr: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(usize)]
-    len: StructField<'ctx, IntValue<'ctx>>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_slice_ctx.rs

@@ -1,18 +0,0 @@
-use nac3core::{
-    codegen::types::structure::StructField,
-    inkwell::{
-        values::{IntValue, PointerValue},
-        AddressSpace,
-    },
-};
-use nac3core_derive::StructFields;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct SliceValue<'ctx> {
-    #[value_type(ctx.i8_type().ptr_type(AddressSpace::default()))]
-    ptr: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(usize)]
-    len: StructField<'ctx, IntValue<'ctx>>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_slice_sizet.rs

@@ -1,18 +0,0 @@
-use nac3core::{
-    codegen::types::structure::StructField,
-    inkwell::{
-        values::{IntValue, PointerValue},
-        AddressSpace,
-    },
-};
-use nac3core_derive::StructFields;
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct SliceValue<'ctx> {
-    #[value_type(i8_type().ptr_type(AddressSpace::default()))]
-    ptr: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(size_t)]
-    len: StructField<'ctx, IntValue<'ctx>>,
-}
-
-fn main() {}

nac3core/nac3core_derive/tests/structfields_test.rs

@@ -1,10 +0,0 @@
-#[test]
-fn test_parse_empty() {
-    let t = trybuild::TestCases::new();
-    t.pass("tests/structfields_empty.rs");
-    t.pass("tests/structfields_slice.rs");
-    t.pass("tests/structfields_slice_ctx.rs");
-    t.pass("tests/structfields_slice_context.rs");
-    t.pass("tests/structfields_slice_sizet.rs");
-    t.pass("tests/structfields_ndarray.rs");
-}

nac3core/src/codegen/concrete_type.rs

@@ -1,20 +1,15 @@
-use std::collections::HashMap;
-
-use indexmap::IndexMap;
-
-use nac3parser::ast::StrRef;
-
 use crate::{
     symbol_resolver::SymbolValue,
     toplevel::DefinitionId,
     typecheck::{
         type_inferencer::PrimitiveStore,
-        typedef::{
+        typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier},
-            into_var_map, FunSignature, FuncArg, Type, TypeEnum, TypeVar, TypeVarId, Unifier,
-        },
     },
 };
 
+use nac3parser::ast::StrRef;
+use std::collections::HashMap;
+
 pub struct ConcreteTypeStore {
     store: Vec<ConcreteTypeEnum>,
 }
@@ -27,7 +22,6 @@ pub struct ConcreteFuncArg {
     pub name: StrRef,
     pub ty: ConcreteType,
     pub default_value: Option<SymbolValue>,
-    pub is_vararg: bool,
 }
 
 #[derive(Clone, Debug)]
@@ -49,12 +43,14 @@ pub enum ConcreteTypeEnum {
     TPrimitive(Primitive),
     TTuple {
         ty: Vec<ConcreteType>,
-        is_vararg_ctx: bool,
+    },
+    TList {
+        ty: ConcreteType,
     },
     TObj {
         obj_id: DefinitionId,
         fields: HashMap<StrRef, (ConcreteType, bool)>,
-        params: IndexMap<TypeVarId, ConcreteType>,
+        params: HashMap<u32, ConcreteType>,
     },
     TVirtual {
         ty: ConcreteType,
@@ -62,10 +58,11 @@ pub enum ConcreteTypeEnum {
     TFunc {
         args: Vec<ConcreteFuncArg>,
         ret: ConcreteType,
-        vars: HashMap<TypeVarId, ConcreteType>,
+        vars: HashMap<u32, ConcreteType>,
     },
-    TLiteral {
+    TConstant {
-        values: Vec<SymbolValue>,
+        value: SymbolValue,
+        ty: ConcreteType,
     },
 }
 
@@ -106,16 +103,8 @@ impl ConcreteTypeStore {
                 .iter()
                 .map(|arg| ConcreteFuncArg {
                     name: arg.name,
-                    ty: if arg.is_vararg {
+                    ty: self.from_unifier_type(unifier, primitives, arg.ty, cache),
-                        let tuple_ty = unifier
-                            .add_ty(TypeEnum::TTuple { ty: vec![arg.ty], is_vararg_ctx: true });
-
-                        self.from_unifier_type(unifier, primitives, tuple_ty, cache)
-                    } else {
-                        self.from_unifier_type(unifier, primitives, arg.ty, cache)
-                    },
                     default_value: arg.default_value.clone(),
-                    is_vararg: arg.is_vararg,
                 })
                 .collect(),
             ret: self.from_unifier_type(unifier, primitives, signature.ret, cache),
@@ -170,12 +159,14 @@ impl ConcreteTypeStore {
             cache.insert(ty, None);
             let ty_enum = unifier.get_ty(ty);
             let result = match &*ty_enum {
-                TypeEnum::TTuple { ty, is_vararg_ctx } => ConcreteTypeEnum::TTuple {
+                TypeEnum::TTuple { ty } => ConcreteTypeEnum::TTuple {
                     ty: ty
                         .iter()
                         .map(|t| self.from_unifier_type(unifier, primitives, *t, cache))
                         .collect(),
-                    is_vararg_ctx: *is_vararg_ctx,
+                },
+                TypeEnum::TList { ty } => ConcreteTypeEnum::TList {
+                    ty: self.from_unifier_type(unifier, primitives, *ty, cache),
                 },
                 TypeEnum::TObj { obj_id, fields, params } => ConcreteTypeEnum::TObj {
                     obj_id: *obj_id,
@@ -211,9 +202,10 @@ impl ConcreteTypeStore {
                 TypeEnum::TFunc(signature) => {
                     self.from_signature(unifier, primitives, signature, cache)
                 }
-                TypeEnum::TLiteral { values, .. } => {
+                TypeEnum::TConstant { value, ty, .. } => ConcreteTypeEnum::TConstant {
-                    ConcreteTypeEnum::TLiteral { values: values.clone() }
+                    value: value.clone(),
-                }
+                    ty: self.from_unifier_type(unifier, primitives, *ty, cache),
+                },
                 _ => unreachable!("{:?}", ty_enum.get_type_name()),
             };
             let index = if let Some(ConcreteType(index)) = cache.get(&ty).unwrap() {
@@ -239,7 +231,7 @@ impl ConcreteTypeStore {
             return if let Some(ty) = ty {
                 *ty
             } else {
-                *ty = Some(unifier.get_dummy_var().ty);
+                *ty = Some(unifier.get_dummy_var().0);
                 ty.unwrap()
             };
         }
@@ -261,13 +253,15 @@ impl ConcreteTypeStore {
                 *cache.get_mut(&cty).unwrap() = Some(ty);
                 return ty;
             }
-            ConcreteTypeEnum::TTuple { ty, is_vararg_ctx } => TypeEnum::TTuple {
+            ConcreteTypeEnum::TTuple { ty } => TypeEnum::TTuple {
                 ty: ty
                     .iter()
                     .map(|cty| self.to_unifier_type(unifier, primitives, *cty, cache))
                     .collect(),
-                is_vararg_ctx: *is_vararg_ctx,
             },
+            ConcreteTypeEnum::TList { ty } => {
+                TypeEnum::TList { ty: self.to_unifier_type(unifier, primitives, *ty, cache) }
+            }
             ConcreteTypeEnum::TVirtual { ty } => {
                 TypeEnum::TVirtual { ty: self.to_unifier_type(unifier, primitives, *ty, cache) }
             }
@@ -279,10 +273,10 @@ impl ConcreteTypeStore {
                         (*name, (self.to_unifier_type(unifier, primitives, cty.0, cache), cty.1))
                     })
                     .collect::<HashMap<_, _>>(),
-                params: into_var_map(params.iter().map(|(&id, cty)| {
+                params: params
-                    let ty = self.to_unifier_type(unifier, primitives, *cty, cache);
+                    .iter()
-                    TypeVar { id, ty }
+                    .map(|(id, cty)| (*id, self.to_unifier_type(unifier, primitives, *cty, cache)))
-                })),
+                    .collect::<HashMap<_, _>>(),
             },
             ConcreteTypeEnum::TFunc { args, ret, vars } => TypeEnum::TFunc(FunSignature {
                 args: args
@@ -291,17 +285,18 @@ impl ConcreteTypeStore {
                         name: arg.name,
                         ty: self.to_unifier_type(unifier, primitives, arg.ty, cache),
                         default_value: arg.default_value.clone(),
-                        is_vararg: false,
                     })
                     .collect(),
                 ret: self.to_unifier_type(unifier, primitives, *ret, cache),
-                vars: into_var_map(vars.iter().map(|(&id, cty)| {
+                vars: vars
-                    let ty = self.to_unifier_type(unifier, primitives, *cty, cache);
+                    .iter()
-                    TypeVar { id, ty }
+                    .map(|(id, cty)| (*id, self.to_unifier_type(unifier, primitives, *cty, cache)))
-                })),
+                    .collect::<HashMap<_, _>>(),
             }),
-            ConcreteTypeEnum::TLiteral { values, .. } => {
+            ConcreteTypeEnum::TConstant { value, ty } => TypeEnum::TConstant {
-                TypeEnum::TLiteral { values: values.clone(), loc: None }
+                value: value.clone(),
+                ty: self.to_unifier_type(unifier, primitives, *ty, cache),
+                loc: None,
             }
         };
         let result = unifier.add_ty(result);

nac3core/src/codegen/extern_fns.rs

@@ -1,193 +0,0 @@
-use inkwell::{
-    attributes::{Attribute, AttributeLoc},
-    values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue},
-};
-use itertools::Either;
-
-use super::CodeGenContext;
-
-/// Macro to generate extern function
-/// Both function return type and function parameter type are `FloatValue`
-///
-/// Arguments:
-/// * `unary/binary`: Whether the extern function requires one (unary) or two (binary) operands
-/// * `$fn_name:ident`: The identifier of the rust function to be generated
-/// * `$extern_fn:literal`: Name of underlying extern function
-///
-/// Optional Arguments:
-/// * `$(,$attributes:literal)*)`: Attributes linked with the extern function.
-///   The default attributes are "mustprogress", "nofree", "nounwind", "willreturn", and "writeonly".
-///   These will be used unless other attributes are specified
-/// * `$(,$args:ident)*`: Operands of the extern function
-///   The data type of these operands will be set to `FloatValue`
-///  
-macro_rules! generate_extern_fn {
-    ("unary", $fn_name:ident, $extern_fn:literal) => {
-        generate_extern_fn!($fn_name, $extern_fn, arg, "mustprogress", "nofree", "nounwind", "willreturn", "writeonly");
-    };
-    ("unary", $fn_name:ident, $extern_fn:literal $(,$attributes:literal)*) => {
-        generate_extern_fn!($fn_name, $extern_fn, arg $(,$attributes)*);
-    };
-    ("binary", $fn_name:ident, $extern_fn:literal) => {
-        generate_extern_fn!($fn_name, $extern_fn, arg1, arg2, "mustprogress", "nofree", "nounwind", "willreturn", "writeonly");
-    };
-    ("binary", $fn_name:ident, $extern_fn:literal $(,$attributes:literal)*) => {
-        generate_extern_fn!($fn_name, $extern_fn, arg1, arg2 $(,$attributes)*);
-    };
-    ($fn_name:ident, $extern_fn:literal $(,$args:ident)* $(,$attributes:literal)*) => {
-        #[doc = concat!("Invokes the [`", stringify!($extern_fn), "`](https://en.cppreference.com/w/c/numeric/math/", stringify!($llvm_name), ") function." )]
-        pub fn $fn_name<'ctx>(
-            ctx: &CodeGenContext<'ctx, '_>
-            $(,$args: FloatValue<'ctx>)*,
-            name: Option<&str>,
-        ) -> FloatValue<'ctx> {
-            const FN_NAME: &str = $extern_fn;
-
-            let llvm_f64 = ctx.ctx.f64_type();
-            $(debug_assert_eq!($args.get_type(), llvm_f64);)*
-
-            let extern_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-                let fn_type = llvm_f64.fn_type(&[$($args.get_type().into()),*], false);
-                let func = ctx.module.add_function(FN_NAME, fn_type, None);
-                for attr in [$($attributes),*] {
-                    func.add_attribute(
-                        AttributeLoc::Function,
-                        ctx.ctx.create_enum_attribute(Attribute::get_named_enum_kind_id(attr), 0),
-                    );
-                }
-                func
-            });
-
-            ctx.builder
-                .build_call(extern_fn, &[$($args.into()),*], name.unwrap_or_default())
-                .map(CallSiteValue::try_as_basic_value)
-                .map(|v| v.map_left(BasicValueEnum::into_float_value))
-                .map(Either::unwrap_left)
-                .unwrap()
-        }
-    };
-}
-
-generate_extern_fn!("unary", call_tan, "tan");
-generate_extern_fn!("unary", call_asin, "asin");
-generate_extern_fn!("unary", call_acos, "acos");
-generate_extern_fn!("unary", call_atan, "atan");
-generate_extern_fn!("unary", call_sinh, "sinh");
-generate_extern_fn!("unary", call_cosh, "cosh");
-generate_extern_fn!("unary", call_tanh, "tanh");
-generate_extern_fn!("unary", call_asinh, "asinh");
-generate_extern_fn!("unary", call_acosh, "acosh");
-generate_extern_fn!("unary", call_atanh, "atanh");
-generate_extern_fn!("unary", call_expm1, "expm1");
-generate_extern_fn!(
-    "unary",
-    call_cbrt,
-    "cbrt",
-    "mustprogress",
-    "nofree",
-    "nosync",
-    "nounwind",
-    "readonly",
-    "willreturn"
-);
-generate_extern_fn!("unary", call_erf, "erf", "nounwind");
-generate_extern_fn!("unary", call_erfc, "erfc", "nounwind");
-generate_extern_fn!("unary", call_j1, "j1", "nounwind");
-
-generate_extern_fn!("binary", call_atan2, "atan2");
-generate_extern_fn!("binary", call_hypot, "hypot", "nounwind");
-generate_extern_fn!("binary", call_nextafter, "nextafter", "nounwind");
-
-/// Invokes the [`ldexp`](https://en.cppreference.com/w/c/numeric/math/ldexp) function.
-pub fn call_ldexp<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    arg: FloatValue<'ctx>,
-    exp: IntValue<'ctx>,
-    name: Option<&str>,
-) -> FloatValue<'ctx> {
-    const FN_NAME: &str = "ldexp";
-
-    let llvm_f64 = ctx.ctx.f64_type();
-    let llvm_i32 = ctx.ctx.i32_type();
-    debug_assert_eq!(arg.get_type(), llvm_f64);
-    debug_assert_eq!(exp.get_type(), llvm_i32);
-
-    let extern_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-        let fn_type = llvm_f64.fn_type(&[llvm_f64.into(), llvm_i32.into()], false);
-        let func = ctx.module.add_function(FN_NAME, fn_type, None);
-        for attr in ["mustprogress", "nofree", "nounwind", "willreturn"] {
-            func.add_attribute(
-                AttributeLoc::Function,
-                ctx.ctx.create_enum_attribute(Attribute::get_named_enum_kind_id(attr), 0),
-            );
-        }
-
-        func
-    });
-
-    ctx.builder
-        .build_call(extern_fn, &[arg.into(), exp.into()], name.unwrap_or_default())
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_float_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Macro to generate `np_linalg` and `sp_linalg` functions
-/// The function takes as input `NDArray` and returns ()
-///
-/// Arguments:
-/// * `$fn_name:ident`: The identifier of the rust function to be generated
-/// * `$extern_fn:literal`: Name of underlying extern function
-/// * (2/3/4): Number of `NDArray` that function takes as input
-///
-/// Note:
-/// The operands and resulting `NDArray` are both passed as input to the funcion
-/// It is the responsibility of caller to ensure that output `NDArray` is properly allocated on stack
-/// The function changes the content of the output `NDArray` in-place
-macro_rules! generate_linalg_extern_fn {
-    ($fn_name:ident, $extern_fn:literal, 2) => {
-        generate_linalg_extern_fn!($fn_name, $extern_fn, mat1, mat2);
-    };
-    ($fn_name:ident, $extern_fn:literal, 3) => {
-        generate_linalg_extern_fn!($fn_name, $extern_fn, mat1, mat2, mat3);
-    };
-    ($fn_name:ident, $extern_fn:literal, 4) => {
-        generate_linalg_extern_fn!($fn_name, $extern_fn, mat1, mat2, mat3, mat4);
-    };
-    ($fn_name:ident, $extern_fn:literal $(,$input_matrix:ident)*) => {
-        #[doc = concat!("Invokes the linalg `", stringify!($extern_fn), " function." )]
-        pub fn $fn_name<'ctx>(
-            ctx: &mut CodeGenContext<'ctx, '_>
-            $(,$input_matrix: BasicValueEnum<'ctx>)*,
-            name: Option<&str>,
-        ){
-            const FN_NAME: &str = $extern_fn;
-            let extern_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-                let fn_type = ctx.ctx.void_type().fn_type(&[$($input_matrix.get_type().into()),*], false);
-
-                let func = ctx.module.add_function(FN_NAME, fn_type, None);
-                for attr in ["mustprogress", "nofree", "nounwind", "willreturn", "writeonly"] {
-                    func.add_attribute(
-                        AttributeLoc::Function,
-                        ctx.ctx.create_enum_attribute(Attribute::get_named_enum_kind_id(attr), 0),
-                    );
-                }
-                func
-            });
-
-            ctx.builder.build_call(extern_fn, &[$($input_matrix.into(),)*], name.unwrap_or_default()).unwrap();
-        }
-    };
-}
-
-generate_linalg_extern_fn!(call_np_linalg_cholesky, "np_linalg_cholesky", 2);
-generate_linalg_extern_fn!(call_np_linalg_qr, "np_linalg_qr", 3);
-generate_linalg_extern_fn!(call_np_linalg_svd, "np_linalg_svd", 4);
-generate_linalg_extern_fn!(call_np_linalg_inv, "np_linalg_inv", 2);
-generate_linalg_extern_fn!(call_np_linalg_pinv, "np_linalg_pinv", 2);
-generate_linalg_extern_fn!(call_np_linalg_matrix_power, "np_linalg_matrix_power", 3);
-generate_linalg_extern_fn!(call_np_linalg_det, "np_linalg_det", 2);
-generate_linalg_extern_fn!(call_sp_linalg_lu, "sp_linalg_lu", 3);
-generate_linalg_extern_fn!(call_sp_linalg_schur, "sp_linalg_schur", 3);
-generate_linalg_extern_fn!(call_sp_linalg_hessenberg, "sp_linalg_hessenberg", 3);

nac3core/src/codegen/generator.rs

@@ -1,18 +1,16 @@
+use crate::{
+    codegen::{expr::*, stmt::*, bool_to_i1, bool_to_i8, CodeGenContext},
+    symbol_resolver::ValueEnum,
+    toplevel::{DefinitionId, TopLevelDef},
+    typecheck::typedef::{FunSignature, Type},
+};
 use inkwell::{
     context::Context,
     types::{BasicTypeEnum, IntType},
     values::{BasicValueEnum, IntValue, PointerValue},
 };
-
 use nac3parser::ast::{Expr, Stmt, StrRef};
 
-use super::{bool_to_i1, bool_to_i8, expr::*, stmt::*, values::ArraySliceValue, CodeGenContext};
-use crate::{
-    symbol_resolver::ValueEnum,
-    toplevel::{DefinitionId, TopLevelDef},
-    typecheck::typedef::{FunSignature, Type},
-};
-
 pub trait CodeGenerator {
     /// Return the module name for the code generator.
     fn get_name(&self) -> &str;
@@ -59,7 +57,6 @@ pub trait CodeGenerator {
     /// - fun: Function signature, definition ID and the substitution key.
     /// - params: Function parameters. Note that this does not include the object even if the
     ///   function is a class method.
-    ///
     /// Note that this function should check if the function is generated in another thread (due to
     /// possible race condition), see the default implementation for an example.
     fn gen_func_instance<'ctx>(
@@ -95,18 +92,6 @@ pub trait CodeGenerator {
         gen_var(ctx, ty, name)
     }
 
-    /// Allocate memory for a variable and return a pointer pointing to it.
-    /// The default implementation places the allocations at the start of the function.
-    fn gen_array_var_alloc<'ctx>(
-        &mut self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        ty: BasicTypeEnum<'ctx>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> Result<ArraySliceValue<'ctx>, String> {
-        gen_array_var(ctx, ty, size, name)
-    }
-
     /// Return a pointer pointing to the target of the expression.
     fn gen_store_target<'ctx>(
         &mut self,
@@ -126,45 +111,11 @@ pub trait CodeGenerator {
         ctx: &mut CodeGenContext<'ctx, '_>,
         target: &Expr<Option<Type>>,
         value: ValueEnum<'ctx>,
-        value_ty: Type,
     ) -> Result<(), String>
     where
         Self: Sized,
     {
-        gen_assign(self, ctx, target, value, value_ty)
+        gen_assign(self, ctx, target, value)
-    }
-
-    /// Generate code for an assignment expression where LHS is a `"target_list"`.
-    ///
-    /// See <https://docs.python.org/3/reference/simple_stmts.html#assignment-statements>.
-    fn gen_assign_target_list<'ctx>(
-        &mut self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        targets: &Vec<Expr<Option<Type>>>,
-        value: ValueEnum<'ctx>,
-        value_ty: Type,
-    ) -> Result<(), String>
-    where
-        Self: Sized,
-    {
-        gen_assign_target_list(self, ctx, targets, value, value_ty)
-    }
-
-    /// Generate code for an item assignment.
-    ///
-    /// i.e., `target[key] = value`
-    fn gen_setitem<'ctx>(
-        &mut self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        target: &Expr<Option<Type>>,
-        key: &Expr<Option<Type>>,
-        value: ValueEnum<'ctx>,
-        value_ty: Type,
-    ) -> Result<(), String>
-    where
-        Self: Sized,
-    {
-        gen_setitem(self, ctx, target, key, value, value_ty)
     }
 
     /// Generate code for a while expression.
@@ -180,8 +131,8 @@ pub trait CodeGenerator {
         gen_while(self, ctx, stmt)
     }
 
-    /// Generate code for a for expression.
+    /// Generate code for a while expression.
-    /// Return true if the for loop must early return
+    /// Return true if the while loop must early return
     fn gen_for(
         &mut self,
         ctx: &mut CodeGenContext<'_, '_>,
@@ -247,7 +198,7 @@ pub trait CodeGenerator {
     fn bool_to_i1<'ctx>(
         &self,
         ctx: &CodeGenContext<'ctx, '_>,
-        bool_value: IntValue<'ctx>,
+        bool_value: IntValue<'ctx>
     ) -> IntValue<'ctx> {
         bool_to_i1(&ctx.builder, bool_value)
     }
@@ -256,7 +207,7 @@ pub trait CodeGenerator {
     fn bool_to_i8<'ctx>(
         &self,
         ctx: &CodeGenContext<'ctx, '_>,
-        bool_value: IntValue<'ctx>,
+        bool_value: IntValue<'ctx>
     ) -> IntValue<'ctx> {
         bool_to_i8(&ctx.builder, ctx.ctx, bool_value)
     }
@@ -276,6 +227,7 @@ impl DefaultCodeGenerator {
 }
 
 impl CodeGenerator for DefaultCodeGenerator {
+
     /// Returns the name for this [`CodeGenerator`].
     fn get_name(&self) -> &str {
         &self.name

nac3core/src/codegen/irrt/irrt.c

@@ -0,0 +1,199 @@
+typedef _BitInt(8) int8_t;
+typedef unsigned _BitInt(8) uint8_t;
+typedef _BitInt(32) int32_t;
+typedef unsigned _BitInt(32) uint32_t;
+typedef _BitInt(64) int64_t;
+typedef unsigned _BitInt(64) uint64_t;
+
+# define MAX(a, b) (a > b ? a : b)
+# define MIN(a, b) (a > b ? b : a)
+
+// adapted from GNU Scientific Library: https://git.savannah.gnu.org/cgit/gsl.git/tree/sys/pow_int.c
+// need to make sure `exp >= 0` before calling this function
+#define DEF_INT_EXP(T) T __nac3_int_exp_##T( \
+    T base, \
+    T exp \
+) { \
+    T res = (T)1; \
+    /* repeated squaring method */ \
+    do { \
+       if (exp & 1) res *= base;  /* for n odd */ \
+       exp >>= 1; \
+       base *= base; \
+    } while (exp); \
+    return res; \
+} \
+
+DEF_INT_EXP(int32_t)
+DEF_INT_EXP(int64_t)
+DEF_INT_EXP(uint32_t)
+DEF_INT_EXP(uint64_t)
+
+
+int32_t __nac3_slice_index_bound(int32_t i, const int32_t len) {
+    if (i < 0) {
+        i = len + i;
+    }
+    if (i < 0) {
+        return 0;
+    } else if (i > len) {
+        return len;
+    }
+    return i;
+}
+
+int32_t __nac3_range_slice_len(const int32_t start, const int32_t end, const int32_t step) {
+    int32_t diff = end - start;
+    if (diff > 0 && step > 0) {
+        return ((diff - 1) / step) + 1;
+    } else if (diff < 0 && step < 0) {
+        return ((diff + 1) / step) + 1;
+    } else {
+        return 0;
+    }
+}
+
+// Handle list assignment and dropping part of the list when
+// both dest_step and src_step are +1.
+// - All the index must *not* be out-of-bound or negative,
+// - The end index is *inclusive*,
+// - The length of src and dest slice size should already
+// be checked: if dest.step == 1 then len(src) <= len(dest) else len(src) == len(dest)
+int32_t __nac3_list_slice_assign_var_size(
+    int32_t dest_start,
+    int32_t dest_end,
+    int32_t dest_step,
+    uint8_t *dest_arr,
+    int32_t dest_arr_len,
+    int32_t src_start,
+    int32_t src_end,
+    int32_t src_step,
+    uint8_t *src_arr,
+    int32_t src_arr_len,
+    const int32_t size
+) {
+    /* if dest_arr_len == 0, do nothing since we do not support extending list */
+    if (dest_arr_len == 0) return dest_arr_len;
+    /* if both step is 1, memmove directly, handle the dropping of the list, and shrink size */
+    if (src_step == dest_step && dest_step == 1) {
+        const int32_t src_len = (src_end >= src_start) ? (src_end - src_start + 1) : 0;
+        const int32_t dest_len = (dest_end >= dest_start) ? (dest_end - dest_start + 1) : 0;
+        if (src_len > 0) {
+            __builtin_memmove(
+                dest_arr + dest_start * size,
+                src_arr + src_start * size,
+                src_len * size
+            );
+        }
+        if (dest_len > 0) {
+            /* dropping */
+            __builtin_memmove(
+                dest_arr + (dest_start + src_len) * size,
+                dest_arr + (dest_end + 1) * size,
+                (dest_arr_len - dest_end - 1) * size
+            );
+        }
+        /* shrink size */
+        return dest_arr_len - (dest_len - src_len);
+    }
+    /* if two range overlaps, need alloca */
+    uint8_t need_alloca =
+        (dest_arr == src_arr)
+        && !(
+            MAX(dest_start, dest_end) < MIN(src_start, src_end)
+            || MAX(src_start, src_end) < MIN(dest_start, dest_end)
+        );
+    if (need_alloca) {
+        uint8_t *tmp = __builtin_alloca(src_arr_len * size);
+        __builtin_memcpy(tmp, src_arr, src_arr_len * size);
+        src_arr = tmp;
+    }
+    int32_t src_ind = src_start;
+    int32_t dest_ind = dest_start;
+    for (;
+        (src_step > 0) ? (src_ind <= src_end) : (src_ind >= src_end);
+        src_ind += src_step, dest_ind += dest_step
+    ) {
+        /* for constant optimization */
+        if (size == 1) {
+            __builtin_memcpy(dest_arr + dest_ind, src_arr + src_ind, 1);
+        } else if (size == 4) {
+            __builtin_memcpy(dest_arr + dest_ind * 4, src_arr + src_ind * 4, 4);
+        } else if (size == 8) {
+            __builtin_memcpy(dest_arr + dest_ind * 8, src_arr + src_ind * 8, 8);
+        } else {
+            /* memcpy for var size, cannot overlap after previous alloca */
+            __builtin_memcpy(dest_arr + dest_ind * size, src_arr + src_ind * size, size);
+        }
+    }
+    /* only dest_step == 1 can we shrink the dest list. */
+    /* size should be ensured prior to calling this function */
+    if (dest_step == 1 && dest_end >= dest_start) {
+        __builtin_memmove(
+            dest_arr + dest_ind * size,
+            dest_arr + (dest_end + 1) * size,
+            (dest_arr_len - dest_end - 1) * size
+        );
+        return dest_arr_len - (dest_end - dest_ind) - 1;
+    }
+    return dest_arr_len;
+}
+
+int32_t __nac3_isinf(double x) {
+    return __builtin_isinf(x);
+}
+
+int32_t __nac3_isnan(double x) {
+    return __builtin_isnan(x);
+}
+
+double tgamma(double arg);
+
+double __nac3_gamma(double z) {
+    // Handling for denormals
+    //     | x                 | Python gamma(x) | C tgamma(x) |
+    // --- | ----------------- | --------------- | ----------- |
+    // (1) | nan               | nan             | nan         |
+    // (2) | -inf              | -inf            | inf         |
+    // (3) | inf               | inf             | inf         |
+    // (4) | 0.0               | inf             | inf         |
+    // (5) | {-1.0, -2.0, ...} | inf             | nan         |
+
+    // (1)-(3)
+    if (__builtin_isinf(z) || __builtin_isnan(z)) {
+        return z;
+    }
+
+    double v = tgamma(z);
+
+    // (4)-(5)
+    return __builtin_isinf(v) || __builtin_isnan(v) ? __builtin_inf() : v;
+}
+
+double lgamma(double arg);
+
+double __nac3_gammaln(double x) {
+    // libm's handling of value overflows differs from scipy:
+    // - scipy: gammaln(-inf) -> -inf
+    // - libm : lgamma(-inf) -> inf
+
+    if (__builtin_isinf(x)) {
+        return x;
+    }
+
+    return lgamma(x);
+}
+
+double j0(double x);
+
+double __nac3_j0(double x) {
+    // libm's handling of value overflows differs from scipy:
+    // - scipy: j0(inf) -> nan
+    // - libm : j0(inf) -> 0.0
+
+    if (__builtin_isinf(x)) {
+        return __builtin_nan("");
+    }
+
+    return j0(x);
+}

nac3core/src/codegen/irrt/list.rs

@@ -1,162 +0,0 @@
-use inkwell::{
-    types::BasicTypeEnum,
-    values::{BasicValueEnum, CallSiteValue, IntValue},
-    AddressSpace, IntPredicate,
-};
-use itertools::Either;
-
-use super::calculate_len_for_slice_range;
-use crate::codegen::{
-    macros::codegen_unreachable,
-    values::{ArrayLikeValue, ListValue},
-    CodeGenContext, CodeGenerator,
-};
-
-/// This function handles 'end' **inclusively**.
-/// Order of tuples `assign_idx` and `value_idx` is ('start', 'end', 'step').
-/// Negative index should be handled before entering this function
-pub fn list_slice_assignment<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    ty: BasicTypeEnum<'ctx>,
-    dest_arr: ListValue<'ctx>,
-    dest_idx: (IntValue<'ctx>, IntValue<'ctx>, IntValue<'ctx>),
-    src_arr: ListValue<'ctx>,
-    src_idx: (IntValue<'ctx>, IntValue<'ctx>, IntValue<'ctx>),
-) {
-    let size_ty = generator.get_size_type(ctx.ctx);
-    let int8_ptr = ctx.ctx.i8_type().ptr_type(AddressSpace::default());
-    let int32 = ctx.ctx.i32_type();
-    let (fun_symbol, elem_ptr_type) = ("__nac3_list_slice_assign_var_size", int8_ptr);
-    let slice_assign_fun = {
-        let ty_vec = vec![
-            int32.into(),         // dest start idx
-            int32.into(),         // dest end idx
-            int32.into(),         // dest step
-            elem_ptr_type.into(), // dest arr ptr
-            int32.into(),         // dest arr len
-            int32.into(),         // src start idx
-            int32.into(),         // src end idx
-            int32.into(),         // src step
-            elem_ptr_type.into(), // src arr ptr
-            int32.into(),         // src arr len
-            int32.into(),         // size
-        ];
-        ctx.module.get_function(fun_symbol).unwrap_or_else(|| {
-            let fn_t = int32.fn_type(ty_vec.as_slice(), false);
-            ctx.module.add_function(fun_symbol, fn_t, None)
-        })
-    };
-
-    let zero = int32.const_zero();
-    let one = int32.const_int(1, false);
-    let dest_arr_ptr = dest_arr.data().base_ptr(ctx, generator);
-    let dest_arr_ptr =
-        ctx.builder.build_pointer_cast(dest_arr_ptr, elem_ptr_type, "dest_arr_ptr_cast").unwrap();
-    let dest_len = dest_arr.load_size(ctx, Some("dest.len"));
-    let dest_len = ctx.builder.build_int_truncate_or_bit_cast(dest_len, int32, "srclen32").unwrap();
-    let src_arr_ptr = src_arr.data().base_ptr(ctx, generator);
-    let src_arr_ptr =
-        ctx.builder.build_pointer_cast(src_arr_ptr, elem_ptr_type, "src_arr_ptr_cast").unwrap();
-    let src_len = src_arr.load_size(ctx, Some("src.len"));
-    let src_len = ctx.builder.build_int_truncate_or_bit_cast(src_len, int32, "srclen32").unwrap();
-
-    // index in bound and positive should be done
-    // assert if dest.step == 1 then len(src) <= len(dest) else len(src) == len(dest), and
-    // throw exception if not satisfied
-    let src_end = ctx
-        .builder
-        .build_select(
-            ctx.builder.build_int_compare(IntPredicate::SLT, src_idx.2, zero, "is_neg").unwrap(),
-            ctx.builder.build_int_sub(src_idx.1, one, "e_min_one").unwrap(),
-            ctx.builder.build_int_add(src_idx.1, one, "e_add_one").unwrap(),
-            "final_e",
-        )
-        .map(BasicValueEnum::into_int_value)
-        .unwrap();
-    let dest_end = ctx
-        .builder
-        .build_select(
-            ctx.builder.build_int_compare(IntPredicate::SLT, dest_idx.2, zero, "is_neg").unwrap(),
-            ctx.builder.build_int_sub(dest_idx.1, one, "e_min_one").unwrap(),
-            ctx.builder.build_int_add(dest_idx.1, one, "e_add_one").unwrap(),
-            "final_e",
-        )
-        .map(BasicValueEnum::into_int_value)
-        .unwrap();
-    let src_slice_len =
-        calculate_len_for_slice_range(generator, ctx, src_idx.0, src_end, src_idx.2);
-    let dest_slice_len =
-        calculate_len_for_slice_range(generator, ctx, dest_idx.0, dest_end, dest_idx.2);
-    let src_eq_dest = ctx
-        .builder
-        .build_int_compare(IntPredicate::EQ, src_slice_len, dest_slice_len, "slice_src_eq_dest")
-        .unwrap();
-    let src_slt_dest = ctx
-        .builder
-        .build_int_compare(IntPredicate::SLT, src_slice_len, dest_slice_len, "slice_src_slt_dest")
-        .unwrap();
-    let dest_step_eq_one = ctx
-        .builder
-        .build_int_compare(
-            IntPredicate::EQ,
-            dest_idx.2,
-            dest_idx.2.get_type().const_int(1, false),
-            "slice_dest_step_eq_one",
-        )
-        .unwrap();
-    let cond_1 = ctx.builder.build_and(dest_step_eq_one, src_slt_dest, "slice_cond_1").unwrap();
-    let cond = ctx.builder.build_or(src_eq_dest, cond_1, "slice_cond").unwrap();
-    ctx.make_assert(
-        generator,
-        cond,
-        "0:ValueError",
-        "attempt to assign sequence of size {0} to slice of size {1} with step size {2}",
-        [Some(src_slice_len), Some(dest_slice_len), Some(dest_idx.2)],
-        ctx.current_loc,
-    );
-
-    let new_len = {
-        let args = vec![
-            dest_idx.0.into(),   // dest start idx
-            dest_idx.1.into(),   // dest end idx
-            dest_idx.2.into(),   // dest step
-            dest_arr_ptr.into(), // dest arr ptr
-            dest_len.into(),     // dest arr len
-            src_idx.0.into(),    // src start idx
-            src_idx.1.into(),    // src end idx
-            src_idx.2.into(),    // src step
-            src_arr_ptr.into(),  // src arr ptr
-            src_len.into(),      // src arr len
-            {
-                let s = match ty {
-                    BasicTypeEnum::FloatType(t) => t.size_of(),
-                    BasicTypeEnum::IntType(t) => t.size_of(),
-                    BasicTypeEnum::PointerType(t) => t.size_of(),
-                    BasicTypeEnum::StructType(t) => t.size_of().unwrap(),
-                    _ => codegen_unreachable!(ctx),
-                };
-                ctx.builder.build_int_truncate_or_bit_cast(s, int32, "size").unwrap()
-            }
-            .into(),
-        ];
-        ctx.builder
-            .build_call(slice_assign_fun, args.as_slice(), "slice_assign")
-            .map(CallSiteValue::try_as_basic_value)
-            .map(|v| v.map_left(BasicValueEnum::into_int_value))
-            .map(Either::unwrap_left)
-            .unwrap()
-    };
-    // update length
-    let need_update =
-        ctx.builder.build_int_compare(IntPredicate::NE, new_len, dest_len, "need_update").unwrap();
-    let current = ctx.builder.get_insert_block().unwrap().get_parent().unwrap();
-    let update_bb = ctx.ctx.append_basic_block(current, "update");
-    let cont_bb = ctx.ctx.append_basic_block(current, "cont");
-    ctx.builder.build_conditional_branch(need_update, update_bb, cont_bb).unwrap();
-    ctx.builder.position_at_end(update_bb);
-    let new_len = ctx.builder.build_int_z_extend_or_bit_cast(new_len, size_ty, "new_len").unwrap();
-    dest_arr.store_size(ctx, generator, new_len);
-    ctx.builder.build_unconditional_branch(cont_bb).unwrap();
-    ctx.builder.position_at_end(cont_bb);
-}

nac3core/src/codegen/irrt/math.rs

@@ -1,152 +0,0 @@
-use inkwell::{
-    values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue},
-    IntPredicate,
-};
-use itertools::Either;
-
-use crate::codegen::{
-    macros::codegen_unreachable,
-    {CodeGenContext, CodeGenerator},
-};
-
-// repeated squaring method adapted from GNU Scientific Library:
-// https://git.savannah.gnu.org/cgit/gsl.git/tree/sys/pow_int.c
-pub fn integer_power<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    base: IntValue<'ctx>,
-    exp: IntValue<'ctx>,
-    signed: bool,
-) -> IntValue<'ctx> {
-    let symbol = match (base.get_type().get_bit_width(), exp.get_type().get_bit_width(), signed) {
-        (32, 32, true) => "__nac3_int_exp_int32_t",
-        (64, 64, true) => "__nac3_int_exp_int64_t",
-        (32, 32, false) => "__nac3_int_exp_uint32_t",
-        (64, 64, false) => "__nac3_int_exp_uint64_t",
-        _ => codegen_unreachable!(ctx),
-    };
-    let base_type = base.get_type();
-    let pow_fun = ctx.module.get_function(symbol).unwrap_or_else(|| {
-        let fn_type = base_type.fn_type(&[base_type.into(), base_type.into()], false);
-        ctx.module.add_function(symbol, fn_type, None)
-    });
-    // throw exception when exp < 0
-    let ge_zero = ctx
-        .builder
-        .build_int_compare(
-            IntPredicate::SGE,
-            exp,
-            exp.get_type().const_zero(),
-            "assert_int_pow_ge_0",
-        )
-        .unwrap();
-    ctx.make_assert(
-        generator,
-        ge_zero,
-        "0:ValueError",
-        "integer power must be positive or zero",
-        [None, None, None],
-        ctx.current_loc,
-    );
-    ctx.builder
-        .build_call(pow_fun, &[base.into(), exp.into()], "call_int_pow")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Generates a call to `isinf` in IR. Returns an `i1` representing the result.
-pub fn call_isinf<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &CodeGenContext<'ctx, '_>,
-    v: FloatValue<'ctx>,
-) -> IntValue<'ctx> {
-    let intrinsic_fn = ctx.module.get_function("__nac3_isinf").unwrap_or_else(|| {
-        let fn_type = ctx.ctx.i32_type().fn_type(&[ctx.ctx.f64_type().into()], false);
-        ctx.module.add_function("__nac3_isinf", fn_type, None)
-    });
-
-    let ret = ctx
-        .builder
-        .build_call(intrinsic_fn, &[v.into()], "isinf")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap();
-
-    generator.bool_to_i1(ctx, ret)
-}
-
-/// Generates a call to `isnan` in IR. Returns an `i1` representing the result.
-pub fn call_isnan<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &CodeGenContext<'ctx, '_>,
-    v: FloatValue<'ctx>,
-) -> IntValue<'ctx> {
-    let intrinsic_fn = ctx.module.get_function("__nac3_isnan").unwrap_or_else(|| {
-        let fn_type = ctx.ctx.i32_type().fn_type(&[ctx.ctx.f64_type().into()], false);
-        ctx.module.add_function("__nac3_isnan", fn_type, None)
-    });
-
-    let ret = ctx
-        .builder
-        .build_call(intrinsic_fn, &[v.into()], "isnan")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap();
-
-    generator.bool_to_i1(ctx, ret)
-}
-
-/// Generates a call to `gamma` in IR. Returns an `f64` representing the result.
-pub fn call_gamma<'ctx>(ctx: &CodeGenContext<'ctx, '_>, v: FloatValue<'ctx>) -> FloatValue<'ctx> {
-    let llvm_f64 = ctx.ctx.f64_type();
-
-    let intrinsic_fn = ctx.module.get_function("__nac3_gamma").unwrap_or_else(|| {
-        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
-        ctx.module.add_function("__nac3_gamma", fn_type, None)
-    });
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[v.into()], "gamma")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_float_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Generates a call to `gammaln` in IR. Returns an `f64` representing the result.
-pub fn call_gammaln<'ctx>(ctx: &CodeGenContext<'ctx, '_>, v: FloatValue<'ctx>) -> FloatValue<'ctx> {
-    let llvm_f64 = ctx.ctx.f64_type();
-
-    let intrinsic_fn = ctx.module.get_function("__nac3_gammaln").unwrap_or_else(|| {
-        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
-        ctx.module.add_function("__nac3_gammaln", fn_type, None)
-    });
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[v.into()], "gammaln")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_float_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Generates a call to `j0` in IR. Returns an `f64` representing the result.
-pub fn call_j0<'ctx>(ctx: &CodeGenContext<'ctx, '_>, v: FloatValue<'ctx>) -> FloatValue<'ctx> {
-    let llvm_f64 = ctx.ctx.f64_type();
-
-    let intrinsic_fn = ctx.module.get_function("__nac3_j0").unwrap_or_else(|| {
-        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
-        ctx.module.add_function("__nac3_j0", fn_type, None)
-    });
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[v.into()], "j0")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_float_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}

nac3core/src/codegen/irrt/mod.rs

@@ -1,28 +1,19 @@
+use crate::typecheck::typedef::Type;
+
+use super::{CodeGenContext, CodeGenerator};
 use inkwell::{
     attributes::{Attribute, AttributeLoc},
     context::Context,
     memory_buffer::MemoryBuffer,
     module::Module,
-    values::{BasicValue, BasicValueEnum, IntValue},
+    types::BasicTypeEnum,
-    IntPredicate,
+    values::{FloatValue, IntValue, PointerValue},
+    AddressSpace, IntPredicate,
 };
-
 use nac3parser::ast::Expr;
 
-use super::{CodeGenContext, CodeGenerator};
-use crate::{symbol_resolver::SymbolResolver, typecheck::typedef::Type};
-pub use list::*;
-pub use math::*;
-pub use ndarray::*;
-pub use slice::*;
-
-mod list;
-mod math;
-mod ndarray;
-mod slice;
-
 #[must_use]
-pub fn load_irrt<'ctx>(ctx: &'ctx Context, symbol_resolver: &dyn SymbolResolver) -> Module<'ctx> {
+pub fn load_irrt(ctx: &Context) -> Module {
     let bitcode_buf = MemoryBuffer::create_from_memory_range(
         include_bytes!(concat!(env!("OUT_DIR"), "/irrt.bc")),
         "irrt_bitcode_buffer",
@@ -38,28 +29,89 @@ pub fn load_irrt<'ctx>(ctx: &'ctx Context, symbol_resolver: &dyn SymbolResolver)
         let function = irrt_mod.get_function(symbol).unwrap();
         function.add_attribute(AttributeLoc::Function, ctx.create_enum_attribute(inline_attr, 0));
     }
-
-    // Initialize all global `EXN_*` exception IDs in IRRT with the [`SymbolResolver`].
-    let exn_id_type = ctx.i32_type();
-    let errors = &[
-        ("EXN_INDEX_ERROR", "0:IndexError"),
-        ("EXN_VALUE_ERROR", "0:ValueError"),
-        ("EXN_ASSERTION_ERROR", "0:AssertionError"),
-        ("EXN_TYPE_ERROR", "0:TypeError"),
-    ];
-    for (irrt_name, symbol_name) in errors {
-        let exn_id = symbol_resolver.get_string_id(symbol_name);
-        let exn_id = exn_id_type.const_int(exn_id as u64, false).as_basic_value_enum();
-
-        let global = irrt_mod.get_global(irrt_name).unwrap_or_else(|| {
-            panic!("Exception symbol name '{irrt_name}' should exist in the IRRT LLVM module")
-        });
-        global.set_initializer(&exn_id);
-    }
-
     irrt_mod
 }
 
+// repeated squaring method adapted from GNU Scientific Library:
+// https://git.savannah.gnu.org/cgit/gsl.git/tree/sys/pow_int.c
+pub fn integer_power<'ctx>(
+    generator: &mut dyn CodeGenerator,
+    ctx: &mut CodeGenContext<'ctx, '_>,
+    base: IntValue<'ctx>,
+    exp: IntValue<'ctx>,
+    signed: bool,
+) -> IntValue<'ctx> {
+    let symbol = match (base.get_type().get_bit_width(), exp.get_type().get_bit_width(), signed) {
+        (32, 32, true) => "__nac3_int_exp_int32_t",
+        (64, 64, true) => "__nac3_int_exp_int64_t",
+        (32, 32, false) => "__nac3_int_exp_uint32_t",
+        (64, 64, false) => "__nac3_int_exp_uint64_t",
+        _ => unreachable!(),
+    };
+    let base_type = base.get_type();
+    let pow_fun = ctx.module.get_function(symbol).unwrap_or_else(|| {
+        let fn_type = base_type.fn_type(&[base_type.into(), base_type.into()], false);
+        ctx.module.add_function(symbol, fn_type, None)
+    });
+    // throw exception when exp < 0
+    let ge_zero = ctx.builder.build_int_compare(
+        IntPredicate::SGE,
+        exp,
+        exp.get_type().const_zero(),
+        "assert_int_pow_ge_0",
+    );
+    ctx.make_assert(
+        generator,
+        ge_zero,
+        "0:ValueError",
+        "integer power must be positive or zero",
+        [None, None, None],
+        ctx.current_loc,
+    );
+    ctx.builder
+        .build_call(pow_fun, &[base.into(), exp.into()], "call_int_pow")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_int_value()
+}
+
+pub fn calculate_len_for_slice_range<'ctx>(
+    generator: &mut dyn CodeGenerator,
+    ctx: &mut CodeGenContext<'ctx, '_>,
+    start: IntValue<'ctx>,
+    end: IntValue<'ctx>,
+    step: IntValue<'ctx>,
+) -> IntValue<'ctx> {
+    const SYMBOL: &str = "__nac3_range_slice_len";
+    let len_func = ctx.module.get_function(SYMBOL).unwrap_or_else(|| {
+        let i32_t = ctx.ctx.i32_type();
+        let fn_t = i32_t.fn_type(&[i32_t.into(), i32_t.into(), i32_t.into()], false);
+        ctx.module.add_function(SYMBOL, fn_t, None)
+    });
+
+    // assert step != 0, throw exception if not
+    let not_zero = ctx.builder.build_int_compare(
+        IntPredicate::NE,
+        step,
+        step.get_type().const_zero(),
+        "range_step_ne",
+    );
+    ctx.make_assert(
+        generator,
+        not_zero,
+        "0:ValueError",
+        "step must not be zero",
+        [None, None, None],
+        ctx.current_loc,
+    );
+    ctx.builder
+        .build_call(len_func, &[start.into(), end.into(), step.into()], "calc_len")
+        .try_as_basic_value()
+        .left()
+        .unwrap()
+        .into_int_value()
+}
+
 /// NOTE: the output value of the end index of this function should be compared ***inclusively***,
 /// because python allows `a[2::-1]`, whose semantic is `[a[2], a[1], a[0]]`, which is equivalent to
 /// NO numeric slice in python.
@@ -106,12 +158,13 @@ pub fn handle_slice_indices<'ctx, G: CodeGenerator>(
     step: &Option<Box<Expr<Option<Type>>>>,
     ctx: &mut CodeGenContext<'ctx, '_>,
     generator: &mut G,
-    length: IntValue<'ctx>,
+    list: PointerValue<'ctx>,
 ) -> Result<Option<(IntValue<'ctx>, IntValue<'ctx>, IntValue<'ctx>)>, String> {
     let int32 = ctx.ctx.i32_type();
     let zero = int32.const_zero();
     let one = int32.const_int(1, false);
-    let length = ctx.builder.build_int_truncate_or_bit_cast(length, int32, "leni32").unwrap();
+    let length = ctx.build_gep_and_load(list, &[zero, one], Some("length")).into_int_value();
+    let length = ctx.builder.build_int_truncate_or_bit_cast(length, int32, "leni32");
     Ok(Some(match (start, end, step) {
         (s, e, None) => (
             if let Some(s) = s.as_ref() {
@@ -131,7 +184,7 @@ pub fn handle_slice_indices<'ctx, G: CodeGenerator>(
                 } else {
                     length
                 };
-                ctx.builder.build_int_sub(e, one, "final_end").unwrap()
+                ctx.builder.build_int_sub(e, one, "final_end")
             },
             one,
         ),
@@ -139,18 +192,15 @@ pub fn handle_slice_indices<'ctx, G: CodeGenerator>(
             let step = if let Some(v) = generator.gen_expr(ctx, step)? {
                 v.to_basic_value_enum(ctx, generator, ctx.primitives.int32)?.into_int_value()
             } else {
-                return Ok(None);
+                return Ok(None)
             };
             // assert step != 0, throw exception if not
-            let not_zero = ctx
+            let not_zero = ctx.builder.build_int_compare(
-                .builder
+                IntPredicate::NE,
-                .build_int_compare(
+                step,
-                    IntPredicate::NE,
+                step.get_type().const_zero(),
-                    step,
+                "range_step_ne",
-                    step.get_type().const_zero(),
+            );
-                    "range_step_ne",
-                )
-                .unwrap();
             ctx.make_assert(
                 generator,
                 not_zero,
@@ -159,69 +209,340 @@ pub fn handle_slice_indices<'ctx, G: CodeGenerator>(
                 [None, None, None],
                 ctx.current_loc,
             );
-            let len_id = ctx.builder.build_int_sub(length, one, "lenmin1").unwrap();
+            let len_id = ctx.builder.build_int_sub(length, one, "lenmin1");
-            let neg = ctx
+            let neg = ctx.builder.build_int_compare(IntPredicate::SLT, step, zero, "step_is_neg");
-                .builder
-                .build_int_compare(IntPredicate::SLT, step, zero, "step_is_neg")
-                .unwrap();
             (
                 match s {
                     Some(s) => {
                         let Some(s) = handle_slice_index_bound(s, ctx, generator, length)? else {
-                            return Ok(None);
+                            return Ok(None)
                         };
                         ctx.builder
                             .build_select(
-                                ctx.builder
+                                ctx.builder.build_and(
-                                    .build_and(
+                                    ctx.builder.build_int_compare(
-                                        ctx.builder
+                                        IntPredicate::EQ,
-                                            .build_int_compare(
+                                        s,
-                                                IntPredicate::EQ,
+                                        length,
-                                                s,
+                                        "s_eq_len",
-                                                length,
+                                    ),
-                                                "s_eq_len",
+                                    neg,
-                                            )
+                                    "should_minus_one",
-                                            .unwrap(),
+                                ),
-                                        neg,
+                                ctx.builder.build_int_sub(s, one, "s_min"),
-                                        "should_minus_one",
-                                    )
-                                    .unwrap(),
-                                ctx.builder.build_int_sub(s, one, "s_min").unwrap(),
                                 s,
                                 "final_start",
                             )
-                            .map(BasicValueEnum::into_int_value)
+                            .into_int_value()
-                            .unwrap()
                     }
-                    None => ctx
+                    None => ctx.builder.build_select(neg, len_id, zero, "stt").into_int_value(),
-                        .builder
-                        .build_select(neg, len_id, zero, "stt")
-                        .map(BasicValueEnum::into_int_value)
-                        .unwrap(),
                 },
                 match e {
                     Some(e) => {
                         let Some(e) = handle_slice_index_bound(e, ctx, generator, length)? else {
-                            return Ok(None);
+                            return Ok(None)
                         };
                         ctx.builder
                             .build_select(
                                 neg,
-                                ctx.builder.build_int_add(e, one, "end_add_one").unwrap(),
+                                ctx.builder.build_int_add(e, one, "end_add_one"),
-                                ctx.builder.build_int_sub(e, one, "end_sub_one").unwrap(),
+                                ctx.builder.build_int_sub(e, one, "end_sub_one"),
                                 "final_end",
                             )
-                            .map(BasicValueEnum::into_int_value)
+                            .into_int_value()
-                            .unwrap()
                     }
-                    None => ctx
+                    None => ctx.builder.build_select(neg, zero, len_id, "end").into_int_value(),
-                        .builder
-                        .build_select(neg, zero, len_id, "end")
-                        .map(BasicValueEnum::into_int_value)
-                        .unwrap(),
                 },
                 step,
             )
         }
     }))
 }
+
+/// this function allows index out of range, since python
+/// allows index out of range in slice (`a = [1,2,3]; a[1:10] == [2,3]`).
+pub fn handle_slice_index_bound<'ctx, G: CodeGenerator>(
+    i: &Expr<Option<Type>>,
+    ctx: &mut CodeGenContext<'ctx, '_>,
+    generator: &mut G,
+    length: IntValue<'ctx>,
+) -> Result<Option<IntValue<'ctx>>, String> {
+    const SYMBOL: &str = "__nac3_slice_index_bound";
+    let func = ctx.module.get_function(SYMBOL).unwrap_or_else(|| {
+        let i32_t = ctx.ctx.i32_type();
+        let fn_t = i32_t.fn_type(&[i32_t.into(), i32_t.into()], false);
+        ctx.module.add_function(SYMBOL, fn_t, None)
+    });
+
+    let i = if let Some(v) = generator.gen_expr(ctx, i)? {
+        v.to_basic_value_enum(ctx, generator, i.custom.unwrap())?
+    } else {
+        return Ok(None)
+    };
+    Ok(Some(ctx
+        .builder
+        .build_call(func, &[i.into(), length.into()], "bounded_ind")
+        .try_as_basic_value()
+        .left()
+        .unwrap()
+        .into_int_value()))
+}
+
+/// This function handles 'end' **inclusively**.
+/// Order of tuples `assign_idx` and `value_idx` is ('start', 'end', 'step').
+/// Negative index should be handled before entering this function
+pub fn list_slice_assignment<'ctx>(
+    generator: &mut dyn CodeGenerator,
+    ctx: &mut CodeGenContext<'ctx, '_>,
+    ty: BasicTypeEnum<'ctx>,
+    dest_arr: PointerValue<'ctx>,
+    dest_idx: (IntValue<'ctx>, IntValue<'ctx>, IntValue<'ctx>),
+    src_arr: PointerValue<'ctx>,
+    src_idx: (IntValue<'ctx>, IntValue<'ctx>, IntValue<'ctx>),
+) {
+    let size_ty = generator.get_size_type(ctx.ctx);
+    let int8_ptr = ctx.ctx.i8_type().ptr_type(AddressSpace::default());
+    let int32 = ctx.ctx.i32_type();
+    let (fun_symbol, elem_ptr_type) = ("__nac3_list_slice_assign_var_size", int8_ptr);
+    let slice_assign_fun = {
+        let ty_vec = vec![
+            int32.into(),         // dest start idx
+            int32.into(),         // dest end idx
+            int32.into(),         // dest step
+            elem_ptr_type.into(), // dest arr ptr
+            int32.into(),         // dest arr len
+            int32.into(),         // src start idx
+            int32.into(),         // src end idx
+            int32.into(),         // src step
+            elem_ptr_type.into(), // src arr ptr
+            int32.into(),         // src arr len
+            int32.into(),         // size
+        ];
+        ctx.module.get_function(fun_symbol).unwrap_or_else(|| {
+            let fn_t = int32.fn_type(ty_vec.as_slice(), false);
+            ctx.module.add_function(fun_symbol, fn_t, None)
+        })
+    };
+
+    let zero = int32.const_zero();
+    let one = int32.const_int(1, false);
+    let dest_arr_ptr = ctx.build_gep_and_load(dest_arr, &[zero, zero], Some("dest.addr"));
+    let dest_arr_ptr = ctx.builder.build_pointer_cast(
+        dest_arr_ptr.into_pointer_value(),
+        elem_ptr_type,
+        "dest_arr_ptr_cast",
+    );
+    let dest_len = ctx.build_gep_and_load(dest_arr, &[zero, one], Some("dest.len")).into_int_value();
+    let dest_len = ctx.builder.build_int_truncate_or_bit_cast(dest_len, int32, "srclen32");
+    let src_arr_ptr = ctx.build_gep_and_load(src_arr, &[zero, zero], Some("src.addr"));
+    let src_arr_ptr = ctx.builder.build_pointer_cast(
+        src_arr_ptr.into_pointer_value(),
+        elem_ptr_type,
+        "src_arr_ptr_cast",
+    );
+    let src_len = ctx.build_gep_and_load(src_arr, &[zero, one], Some("src.len")).into_int_value();
+    let src_len = ctx.builder.build_int_truncate_or_bit_cast(src_len, int32, "srclen32");
+
+    // index in bound and positive should be done
+    // assert if dest.step == 1 then len(src) <= len(dest) else len(src) == len(dest), and
+    // throw exception if not satisfied
+    let src_end = ctx.builder
+        .build_select(
+            ctx.builder.build_int_compare(
+                IntPredicate::SLT,
+                src_idx.2,
+                zero,
+                "is_neg",
+            ),
+            ctx.builder.build_int_sub(src_idx.1, one, "e_min_one"),
+            ctx.builder.build_int_add(src_idx.1, one, "e_add_one"),
+            "final_e",
+        )
+        .into_int_value();
+    let dest_end = ctx.builder
+        .build_select(
+            ctx.builder.build_int_compare(
+                IntPredicate::SLT,
+                dest_idx.2,
+                zero,
+                "is_neg",
+            ),
+            ctx.builder.build_int_sub(dest_idx.1, one, "e_min_one"),
+            ctx.builder.build_int_add(dest_idx.1, one, "e_add_one"),
+            "final_e",
+        )
+        .into_int_value();
+    let src_slice_len =
+        calculate_len_for_slice_range(generator, ctx, src_idx.0, src_end, src_idx.2);
+    let dest_slice_len =
+        calculate_len_for_slice_range(generator, ctx, dest_idx.0, dest_end, dest_idx.2);
+    let src_eq_dest = ctx.builder.build_int_compare(
+        IntPredicate::EQ,
+        src_slice_len,
+        dest_slice_len,
+        "slice_src_eq_dest",
+    );
+    let src_slt_dest = ctx.builder.build_int_compare(
+        IntPredicate::SLT,
+        src_slice_len,
+        dest_slice_len,
+        "slice_src_slt_dest",
+    );
+    let dest_step_eq_one = ctx.builder.build_int_compare(
+        IntPredicate::EQ,
+        dest_idx.2,
+        dest_idx.2.get_type().const_int(1, false),
+        "slice_dest_step_eq_one",
+    );
+    let cond_1 = ctx.builder.build_and(dest_step_eq_one, src_slt_dest, "slice_cond_1");
+    let cond = ctx.builder.build_or(src_eq_dest, cond_1, "slice_cond");
+    ctx.make_assert(
+        generator,
+        cond,
+        "0:ValueError",
+        "attempt to assign sequence of size {0} to slice of size {1} with step size {2}",
+        [Some(src_slice_len), Some(dest_slice_len), Some(dest_idx.2)],
+        ctx.current_loc,
+    );
+
+    let new_len = {
+        let args = vec![
+            dest_idx.0.into(),   // dest start idx
+            dest_idx.1.into(),   // dest end idx
+            dest_idx.2.into(),   // dest step
+            dest_arr_ptr.into(), // dest arr ptr
+            dest_len.into(),     // dest arr len
+            src_idx.0.into(),    // src start idx
+            src_idx.1.into(),    // src end idx
+            src_idx.2.into(),    // src step
+            src_arr_ptr.into(),  // src arr ptr
+            src_len.into(),      // src arr len
+            {
+                let s = match ty {
+                    BasicTypeEnum::FloatType(t) => t.size_of(),
+                    BasicTypeEnum::IntType(t) => t.size_of(),
+                    BasicTypeEnum::PointerType(t) => t.size_of(),
+                    BasicTypeEnum::StructType(t) => t.size_of().unwrap(),
+                    _ => unreachable!(),
+                };
+                ctx.builder.build_int_truncate_or_bit_cast(s, int32, "size")
+            }
+            .into(),
+        ];
+        ctx.builder
+            .build_call(slice_assign_fun, args.as_slice(), "slice_assign")
+            .try_as_basic_value()
+            .unwrap_left()
+            .into_int_value()
+    };
+    // update length
+    let need_update =
+        ctx.builder.build_int_compare(IntPredicate::NE, new_len, dest_len, "need_update");
+    let current = ctx.builder.get_insert_block().unwrap().get_parent().unwrap();
+    let update_bb = ctx.ctx.append_basic_block(current, "update");
+    let cont_bb = ctx.ctx.append_basic_block(current, "cont");
+    ctx.builder.build_conditional_branch(need_update, update_bb, cont_bb);
+    ctx.builder.position_at_end(update_bb);
+    let dest_len_ptr = unsafe { ctx.builder.build_gep(dest_arr, &[zero, one], "dest_len_ptr") };
+    let new_len = ctx.builder.build_int_z_extend_or_bit_cast(new_len, size_ty, "new_len");
+    ctx.builder.build_store(dest_len_ptr, new_len);
+    ctx.builder.build_unconditional_branch(cont_bb);
+    ctx.builder.position_at_end(cont_bb);
+}
+
+/// Generates a call to `isinf` in IR. Returns an `i1` representing the result.
+pub fn call_isinf<'ctx>(
+    generator: &mut dyn CodeGenerator,
+    ctx: &CodeGenContext<'ctx, '_>,
+    v: FloatValue<'ctx>,
+) -> IntValue<'ctx> {
+    let intrinsic_fn = ctx.module.get_function("__nac3_isinf").unwrap_or_else(|| {
+        let fn_type = ctx.ctx.i32_type().fn_type(&[ctx.ctx.f64_type().into()], false);
+        ctx.module.add_function("__nac3_isinf", fn_type, None)
+    });
+
+    let ret = ctx.builder
+        .build_call(intrinsic_fn, &[v.into()], "isinf")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_int_value();
+
+    generator.bool_to_i1(ctx, ret)
+}
+
+/// Generates a call to `isnan` in IR. Returns an `i1` representing the result.
+pub fn call_isnan<'ctx>(
+    generator: &mut dyn CodeGenerator,
+    ctx: &CodeGenContext<'ctx, '_>,
+    v: FloatValue<'ctx>,
+) -> IntValue<'ctx> {
+    let intrinsic_fn = ctx.module.get_function("__nac3_isnan").unwrap_or_else(|| {
+        let fn_type = ctx.ctx.i32_type().fn_type(&[ctx.ctx.f64_type().into()], false);
+        ctx.module.add_function("__nac3_isnan", fn_type, None)
+    });
+
+    let ret = ctx.builder
+        .build_call(intrinsic_fn, &[v.into()], "isnan")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_int_value();
+
+    generator.bool_to_i1(ctx, ret)
+}
+
+/// Generates a call to `gamma` in IR. Returns an `f64` representing the result.
+pub fn call_gamma<'ctx>(
+    ctx: &CodeGenContext<'ctx, '_>,
+    v: FloatValue<'ctx>,
+) -> FloatValue<'ctx> {
+    let llvm_f64 = ctx.ctx.f64_type();
+
+    let intrinsic_fn = ctx.module.get_function("__nac3_gamma").unwrap_or_else(|| {
+        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
+        ctx.module.add_function("__nac3_gamma", fn_type, None)
+    });
+
+    ctx.builder
+        .build_call(intrinsic_fn, &[v.into()], "gamma")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_float_value()
+}
+
+/// Generates a call to `gammaln` in IR. Returns an `f64` representing the result.
+pub fn call_gammaln<'ctx>(
+    ctx: &CodeGenContext<'ctx, '_>,
+    v: FloatValue<'ctx>,
+) -> FloatValue<'ctx> {
+    let llvm_f64 = ctx.ctx.f64_type();
+
+    let intrinsic_fn = ctx.module.get_function("__nac3_gammaln").unwrap_or_else(|| {
+        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
+        ctx.module.add_function("__nac3_gammaln", fn_type, None)
+    });
+
+    ctx.builder
+        .build_call(intrinsic_fn, &[v.into()], "gammaln")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_float_value()
+}
+
+/// Generates a call to `j0` in IR. Returns an `f64` representing the result.
+pub fn call_j0<'ctx>(
+    ctx: &CodeGenContext<'ctx, '_>,
+    v: FloatValue<'ctx>,
+) -> FloatValue<'ctx> {
+    let llvm_f64 = ctx.ctx.f64_type();
+
+    let intrinsic_fn = ctx.module.get_function("__nac3_j0").unwrap_or_else(|| {
+        let fn_type = llvm_f64.fn_type(&[llvm_f64.into()], false);
+        ctx.module.add_function("__nac3_j0", fn_type, None)
+    });
+
+    ctx.builder
+        .build_call(intrinsic_fn, &[v.into()], "j0")
+        .try_as_basic_value()
+        .unwrap_left()
+        .into_float_value()
+}

nac3core/src/codegen/irrt/ndarray.rs

@@ -1,384 +0,0 @@
-use inkwell::{
-    types::IntType,
-    values::{BasicValueEnum, CallSiteValue, IntValue},
-    AddressSpace, IntPredicate,
-};
-use itertools::Either;
-
-use crate::codegen::{
-    llvm_intrinsics,
-    macros::codegen_unreachable,
-    stmt::gen_for_callback_incrementing,
-    values::{
-        ArrayLikeIndexer, ArrayLikeValue, ArraySliceValue, NDArrayValue, TypedArrayLikeAccessor,
-        TypedArrayLikeAdapter, UntypedArrayLikeAccessor,
-    },
-    CodeGenContext, CodeGenerator,
-};
-
-/// Generates a call to `__nac3_ndarray_calc_size`. Returns an [`IntValue`] representing the
-/// calculated total size.
-///
-/// * `dims` - An [`ArrayLikeIndexer`] containing the size of each dimension.
-/// * `range` - The dimension index to begin and end (exclusively) calculating the dimensions for,
-///   or [`None`] if starting from the first dimension and ending at the last dimension
-///   respectively.
-pub fn call_ndarray_calc_size<'ctx, G, Dims>(
-    generator: &G,
-    ctx: &CodeGenContext<'ctx, '_>,
-    dims: &Dims,
-    (begin, end): (Option<IntValue<'ctx>>, Option<IntValue<'ctx>>),
-) -> IntValue<'ctx>
-where
-    G: CodeGenerator + ?Sized,
-    Dims: ArrayLikeIndexer<'ctx>,
-{
-    let llvm_usize = generator.get_size_type(ctx.ctx);
-    let llvm_pusize = llvm_usize.ptr_type(AddressSpace::default());
-
-    let ndarray_calc_size_fn_name = match llvm_usize.get_bit_width() {
-        32 => "__nac3_ndarray_calc_size",
-        64 => "__nac3_ndarray_calc_size64",
-        bw => codegen_unreachable!(ctx, "Unsupported size type bit width: {}", bw),
-    };
-    let ndarray_calc_size_fn_t = llvm_usize.fn_type(
-        &[llvm_pusize.into(), llvm_usize.into(), llvm_usize.into(), llvm_usize.into()],
-        false,
-    );
-    let ndarray_calc_size_fn =
-        ctx.module.get_function(ndarray_calc_size_fn_name).unwrap_or_else(|| {
-            ctx.module.add_function(ndarray_calc_size_fn_name, ndarray_calc_size_fn_t, None)
-        });
-
-    let begin = begin.unwrap_or_else(|| llvm_usize.const_zero());
-    let end = end.unwrap_or_else(|| dims.size(ctx, generator));
-    ctx.builder
-        .build_call(
-            ndarray_calc_size_fn,
-            &[
-                dims.base_ptr(ctx, generator).into(),
-                dims.size(ctx, generator).into(),
-                begin.into(),
-                end.into(),
-            ],
-            "",
-        )
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Generates a call to `__nac3_ndarray_calc_nd_indices`. Returns a [`TypeArrayLikeAdpater`]
-/// containing `i32` indices of the flattened index.
-///
-/// * `index` - The index to compute the multidimensional index for.
-/// * `ndarray` - LLVM pointer to the `NDArray`. This value must be the LLVM representation of an
-///   `NDArray`.
-pub fn call_ndarray_calc_nd_indices<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    index: IntValue<'ctx>,
-    ndarray: NDArrayValue<'ctx>,
-) -> TypedArrayLikeAdapter<'ctx, IntValue<'ctx>> {
-    let llvm_void = ctx.ctx.void_type();
-    let llvm_i32 = ctx.ctx.i32_type();
-    let llvm_usize = generator.get_size_type(ctx.ctx);
-    let llvm_pi32 = llvm_i32.ptr_type(AddressSpace::default());
-    let llvm_pusize = llvm_usize.ptr_type(AddressSpace::default());
-
-    let ndarray_calc_nd_indices_fn_name = match llvm_usize.get_bit_width() {
-        32 => "__nac3_ndarray_calc_nd_indices",
-        64 => "__nac3_ndarray_calc_nd_indices64",
-        bw => codegen_unreachable!(ctx, "Unsupported size type bit width: {}", bw),
-    };
-    let ndarray_calc_nd_indices_fn =
-        ctx.module.get_function(ndarray_calc_nd_indices_fn_name).unwrap_or_else(|| {
-            let fn_type = llvm_void.fn_type(
-                &[llvm_usize.into(), llvm_pusize.into(), llvm_usize.into(), llvm_pi32.into()],
-                false,
-            );
-
-            ctx.module.add_function(ndarray_calc_nd_indices_fn_name, fn_type, None)
-        });
-
-    let ndarray_num_dims = ndarray.load_ndims(ctx);
-    let ndarray_dims = ndarray.shape();
-
-    let indices = ctx.builder.build_array_alloca(llvm_i32, ndarray_num_dims, "").unwrap();
-
-    ctx.builder
-        .build_call(
-            ndarray_calc_nd_indices_fn,
-            &[
-                index.into(),
-                ndarray_dims.base_ptr(ctx, generator).into(),
-                ndarray_num_dims.into(),
-                indices.into(),
-            ],
-            "",
-        )
-        .unwrap();
-
-    TypedArrayLikeAdapter::from(
-        ArraySliceValue::from_ptr_val(indices, ndarray_num_dims, None),
-        Box::new(|_, v| v.into_int_value()),
-        Box::new(|_, v| v.into()),
-    )
-}
-
-fn call_ndarray_flatten_index_impl<'ctx, G, Indices>(
-    generator: &G,
-    ctx: &CodeGenContext<'ctx, '_>,
-    ndarray: NDArrayValue<'ctx>,
-    indices: &Indices,
-) -> IntValue<'ctx>
-where
-    G: CodeGenerator + ?Sized,
-    Indices: ArrayLikeIndexer<'ctx>,
-{
-    let llvm_i32 = ctx.ctx.i32_type();
-    let llvm_usize = generator.get_size_type(ctx.ctx);
-
-    let llvm_pi32 = llvm_i32.ptr_type(AddressSpace::default());
-    let llvm_pusize = llvm_usize.ptr_type(AddressSpace::default());
-
-    debug_assert_eq!(
-        IntType::try_from(indices.element_type(ctx, generator))
-            .map(IntType::get_bit_width)
-            .unwrap_or_default(),
-        llvm_i32.get_bit_width(),
-        "Expected i32 value for argument `indices` to `call_ndarray_flatten_index_impl`"
-    );
-    debug_assert_eq!(
-        indices.size(ctx, generator).get_type().get_bit_width(),
-        llvm_usize.get_bit_width(),
-        "Expected usize integer value for argument `indices_size` to `call_ndarray_flatten_index_impl`"
-    );
-
-    let ndarray_flatten_index_fn_name = match llvm_usize.get_bit_width() {
-        32 => "__nac3_ndarray_flatten_index",
-        64 => "__nac3_ndarray_flatten_index64",
-        bw => codegen_unreachable!(ctx, "Unsupported size type bit width: {}", bw),
-    };
-    let ndarray_flatten_index_fn =
-        ctx.module.get_function(ndarray_flatten_index_fn_name).unwrap_or_else(|| {
-            let fn_type = llvm_usize.fn_type(
-                &[llvm_pusize.into(), llvm_usize.into(), llvm_pi32.into(), llvm_usize.into()],
-                false,
-            );
-
-            ctx.module.add_function(ndarray_flatten_index_fn_name, fn_type, None)
-        });
-
-    let ndarray_num_dims = ndarray.load_ndims(ctx);
-    let ndarray_dims = ndarray.shape();
-
-    let index = ctx
-        .builder
-        .build_call(
-            ndarray_flatten_index_fn,
-            &[
-                ndarray_dims.base_ptr(ctx, generator).into(),
-                ndarray_num_dims.into(),
-                indices.base_ptr(ctx, generator).into(),
-                indices.size(ctx, generator).into(),
-            ],
-            "",
-        )
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap();
-
-    index
-}
-
-/// Generates a call to `__nac3_ndarray_flatten_index`. Returns the flattened index for the
-/// multidimensional index.
-///
-/// * `ndarray` - LLVM pointer to the `NDArray`. This value must be the LLVM representation of an
-///   `NDArray`.
-/// * `indices` - The multidimensional index to compute the flattened index for.
-pub fn call_ndarray_flatten_index<'ctx, G, Index>(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    ndarray: NDArrayValue<'ctx>,
-    indices: &Index,
-) -> IntValue<'ctx>
-where
-    G: CodeGenerator + ?Sized,
-    Index: ArrayLikeIndexer<'ctx>,
-{
-    call_ndarray_flatten_index_impl(generator, ctx, ndarray, indices)
-}
-
-/// Generates a call to `__nac3_ndarray_calc_broadcast`. Returns a tuple containing the number of
-/// dimension and size of each dimension of the resultant `ndarray`.
-pub fn call_ndarray_calc_broadcast<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    lhs: NDArrayValue<'ctx>,
-    rhs: NDArrayValue<'ctx>,
-) -> TypedArrayLikeAdapter<'ctx, IntValue<'ctx>> {
-    let llvm_usize = generator.get_size_type(ctx.ctx);
-    let llvm_pusize = llvm_usize.ptr_type(AddressSpace::default());
-
-    let ndarray_calc_broadcast_fn_name = match llvm_usize.get_bit_width() {
-        32 => "__nac3_ndarray_calc_broadcast",
-        64 => "__nac3_ndarray_calc_broadcast64",
-        bw => codegen_unreachable!(ctx, "Unsupported size type bit width: {}", bw),
-    };
-    let ndarray_calc_broadcast_fn =
-        ctx.module.get_function(ndarray_calc_broadcast_fn_name).unwrap_or_else(|| {
-            let fn_type = llvm_usize.fn_type(
-                &[
-                    llvm_pusize.into(),
-                    llvm_usize.into(),
-                    llvm_pusize.into(),
-                    llvm_usize.into(),
-                    llvm_pusize.into(),
-                ],
-                false,
-            );
-
-            ctx.module.add_function(ndarray_calc_broadcast_fn_name, fn_type, None)
-        });
-
-    let lhs_ndims = lhs.load_ndims(ctx);
-    let rhs_ndims = rhs.load_ndims(ctx);
-    let min_ndims = llvm_intrinsics::call_int_umin(ctx, lhs_ndims, rhs_ndims, None);
-
-    gen_for_callback_incrementing(
-        generator,
-        ctx,
-        None,
-        llvm_usize.const_zero(),
-        (min_ndims, false),
-        |generator, ctx, _, idx| {
-            let idx = ctx.builder.build_int_sub(min_ndims, idx, "").unwrap();
-            let (lhs_dim_sz, rhs_dim_sz) = unsafe {
-                (
-                    lhs.shape().get_typed_unchecked(ctx, generator, &idx, None),
-                    rhs.shape().get_typed_unchecked(ctx, generator, &idx, None),
-                )
-            };
-
-            let llvm_usize_const_one = llvm_usize.const_int(1, false);
-            let lhs_eqz = ctx
-                .builder
-                .build_int_compare(IntPredicate::EQ, lhs_dim_sz, llvm_usize_const_one, "")
-                .unwrap();
-            let rhs_eqz = ctx
-                .builder
-                .build_int_compare(IntPredicate::EQ, rhs_dim_sz, llvm_usize_const_one, "")
-                .unwrap();
-            let lhs_or_rhs_eqz = ctx.builder.build_or(lhs_eqz, rhs_eqz, "").unwrap();
-
-            let lhs_eq_rhs = ctx
-                .builder
-                .build_int_compare(IntPredicate::EQ, lhs_dim_sz, rhs_dim_sz, "")
-                .unwrap();
-
-            let is_compatible = ctx.builder.build_or(lhs_or_rhs_eqz, lhs_eq_rhs, "").unwrap();
-
-            ctx.make_assert(
-                generator,
-                is_compatible,
-                "0:ValueError",
-                "operands could not be broadcast together",
-                [None, None, None],
-                ctx.current_loc,
-            );
-
-            Ok(())
-        },
-        llvm_usize.const_int(1, false),
-    )
-    .unwrap();
-
-    let max_ndims = llvm_intrinsics::call_int_umax(ctx, lhs_ndims, rhs_ndims, None);
-    let lhs_dims = lhs.shape().base_ptr(ctx, generator);
-    let lhs_ndims = lhs.load_ndims(ctx);
-    let rhs_dims = rhs.shape().base_ptr(ctx, generator);
-    let rhs_ndims = rhs.load_ndims(ctx);
-    let out_dims = ctx.builder.build_array_alloca(llvm_usize, max_ndims, "").unwrap();
-    let out_dims = ArraySliceValue::from_ptr_val(out_dims, max_ndims, None);
-
-    ctx.builder
-        .build_call(
-            ndarray_calc_broadcast_fn,
-            &[
-                lhs_dims.into(),
-                lhs_ndims.into(),
-                rhs_dims.into(),
-                rhs_ndims.into(),
-                out_dims.base_ptr(ctx, generator).into(),
-            ],
-            "",
-        )
-        .unwrap();
-
-    TypedArrayLikeAdapter::from(
-        out_dims,
-        Box::new(|_, v| v.into_int_value()),
-        Box::new(|_, v| v.into()),
-    )
-}
-
-/// Generates a call to `__nac3_ndarray_calc_broadcast_idx`. Returns an [`ArrayAllocaValue`]
-/// containing the indices used for accessing `array` corresponding to the index of the broadcasted
-/// array `broadcast_idx`.
-pub fn call_ndarray_calc_broadcast_index<
-    'ctx,
-    G: CodeGenerator + ?Sized,
-    BroadcastIdx: UntypedArrayLikeAccessor<'ctx>,
->(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    array: NDArrayValue<'ctx>,
-    broadcast_idx: &BroadcastIdx,
-) -> TypedArrayLikeAdapter<'ctx, IntValue<'ctx>> {
-    let llvm_i32 = ctx.ctx.i32_type();
-    let llvm_usize = generator.get_size_type(ctx.ctx);
-    let llvm_pi32 = llvm_i32.ptr_type(AddressSpace::default());
-    let llvm_pusize = llvm_usize.ptr_type(AddressSpace::default());
-
-    let ndarray_calc_broadcast_fn_name = match llvm_usize.get_bit_width() {
-        32 => "__nac3_ndarray_calc_broadcast_idx",
-        64 => "__nac3_ndarray_calc_broadcast_idx64",
-        bw => codegen_unreachable!(ctx, "Unsupported size type bit width: {}", bw),
-    };
-    let ndarray_calc_broadcast_fn =
-        ctx.module.get_function(ndarray_calc_broadcast_fn_name).unwrap_or_else(|| {
-            let fn_type = llvm_usize.fn_type(
-                &[llvm_pusize.into(), llvm_usize.into(), llvm_pi32.into(), llvm_pi32.into()],
-                false,
-            );
-
-            ctx.module.add_function(ndarray_calc_broadcast_fn_name, fn_type, None)
-        });
-
-    let broadcast_size = broadcast_idx.size(ctx, generator);
-    let out_idx = ctx.builder.build_array_alloca(llvm_i32, broadcast_size, "").unwrap();
-
-    let array_dims = array.shape().base_ptr(ctx, generator);
-    let array_ndims = array.load_ndims(ctx);
-    let broadcast_idx_ptr = unsafe {
-        broadcast_idx.ptr_offset_unchecked(ctx, generator, &llvm_usize.const_zero(), None)
-    };
-
-    ctx.builder
-        .build_call(
-            ndarray_calc_broadcast_fn,
-            &[array_dims.into(), array_ndims.into(), broadcast_idx_ptr.into(), out_idx.into()],
-            "",
-        )
-        .unwrap();
-
-    TypedArrayLikeAdapter::from(
-        ArraySliceValue::from_ptr_val(out_idx, broadcast_size, None),
-        Box::new(|_, v| v.into_int_value()),
-        Box::new(|_, v| v.into()),
-    )
-}

nac3core/src/codegen/irrt/slice.rs

@@ -1,76 +0,0 @@
-use inkwell::{
-    values::{BasicValueEnum, CallSiteValue, IntValue},
-    IntPredicate,
-};
-use itertools::Either;
-use nac3parser::ast::Expr;
-
-use crate::{
-    codegen::{CodeGenContext, CodeGenerator},
-    typecheck::typedef::Type,
-};
-
-/// this function allows index out of range, since python
-/// allows index out of range in slice (`a = [1,2,3]; a[1:10] == [2,3]`).
-pub fn handle_slice_index_bound<'ctx, G: CodeGenerator>(
-    i: &Expr<Option<Type>>,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    generator: &mut G,
-    length: IntValue<'ctx>,
-) -> Result<Option<IntValue<'ctx>>, String> {
-    const SYMBOL: &str = "__nac3_slice_index_bound";
-    let func = ctx.module.get_function(SYMBOL).unwrap_or_else(|| {
-        let i32_t = ctx.ctx.i32_type();
-        let fn_t = i32_t.fn_type(&[i32_t.into(), i32_t.into()], false);
-        ctx.module.add_function(SYMBOL, fn_t, None)
-    });
-
-    let i = if let Some(v) = generator.gen_expr(ctx, i)? {
-        v.to_basic_value_enum(ctx, generator, i.custom.unwrap())?
-    } else {
-        return Ok(None);
-    };
-    Ok(Some(
-        ctx.builder
-            .build_call(func, &[i.into(), length.into()], "bounded_ind")
-            .map(CallSiteValue::try_as_basic_value)
-            .map(|v| v.map_left(BasicValueEnum::into_int_value))
-            .map(Either::unwrap_left)
-            .unwrap(),
-    ))
-}
-
-pub fn calculate_len_for_slice_range<'ctx, G: CodeGenerator + ?Sized>(
-    generator: &mut G,
-    ctx: &mut CodeGenContext<'ctx, '_>,
-    start: IntValue<'ctx>,
-    end: IntValue<'ctx>,
-    step: IntValue<'ctx>,
-) -> IntValue<'ctx> {
-    const SYMBOL: &str = "__nac3_range_slice_len";
-    let len_func = ctx.module.get_function(SYMBOL).unwrap_or_else(|| {
-        let i32_t = ctx.ctx.i32_type();
-        let fn_t = i32_t.fn_type(&[i32_t.into(), i32_t.into(), i32_t.into()], false);
-        ctx.module.add_function(SYMBOL, fn_t, None)
-    });
-
-    // assert step != 0, throw exception if not
-    let not_zero = ctx
-        .builder
-        .build_int_compare(IntPredicate::NE, step, step.get_type().const_zero(), "range_step_ne")
-        .unwrap();
-    ctx.make_assert(
-        generator,
-        not_zero,
-        "0:ValueError",
-        "step must not be zero",
-        [None, None, None],
-        ctx.current_loc,
-    );
-    ctx.builder
-        .build_call(len_func, &[start.into(), end.into(), step.into()], "calc_len")
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_int_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}

nac3core/src/codegen/llvm_intrinsics.rs

@@ -1,345 +0,0 @@
-use inkwell::{
-    context::Context,
-    intrinsics::Intrinsic,
-    types::{AnyTypeEnum::IntType, FloatType},
-    values::{BasicValueEnum, CallSiteValue, FloatValue, IntValue, PointerValue},
-    AddressSpace,
-};
-use itertools::Either;
-
-use super::CodeGenContext;
-
-/// Returns the string representation for the floating-point type `ft` when used in intrinsic
-/// functions.
-fn get_float_intrinsic_repr(ctx: &Context, ft: FloatType) -> &'static str {
-    // Standard LLVM floating-point types
-    if ft == ctx.f16_type() {
-        return "f16";
-    }
-    if ft == ctx.f32_type() {
-        return "f32";
-    }
-    if ft == ctx.f64_type() {
-        return "f64";
-    }
-    if ft == ctx.f128_type() {
-        return "f128";
-    }
-
-    // Non-standard floating-point types
-    if ft == ctx.x86_f80_type() {
-        return "f80";
-    }
-    if ft == ctx.ppc_f128_type() {
-        return "ppcf128";
-    }
-
-    unreachable!()
-}
-
-/// Invokes the [`llvm.va_start`](https://llvm.org/docs/LangRef.html#llvm-va-start-intrinsic)
-/// intrinsic.
-pub fn call_va_start<'ctx>(ctx: &CodeGenContext<'ctx, '_>, arglist: PointerValue<'ctx>) {
-    const FN_NAME: &str = "llvm.va_start";
-
-    let intrinsic_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-        let llvm_void = ctx.ctx.void_type();
-        let llvm_i8 = ctx.ctx.i8_type();
-        let llvm_p0i8 = llvm_i8.ptr_type(AddressSpace::default());
-        let fn_type = llvm_void.fn_type(&[llvm_p0i8.into()], false);
-
-        ctx.module.add_function(FN_NAME, fn_type, None)
-    });
-
-    ctx.builder.build_call(intrinsic_fn, &[arglist.into()], "").unwrap();
-}
-
-/// Invokes the [`llvm.va_start`](https://llvm.org/docs/LangRef.html#llvm-va-start-intrinsic)
-/// intrinsic.
-pub fn call_va_end<'ctx>(ctx: &CodeGenContext<'ctx, '_>, arglist: PointerValue<'ctx>) {
-    const FN_NAME: &str = "llvm.va_end";
-
-    let intrinsic_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-        let llvm_void = ctx.ctx.void_type();
-        let llvm_i8 = ctx.ctx.i8_type();
-        let llvm_p0i8 = llvm_i8.ptr_type(AddressSpace::default());
-        let fn_type = llvm_void.fn_type(&[llvm_p0i8.into()], false);
-
-        ctx.module.add_function(FN_NAME, fn_type, None)
-    });
-
-    ctx.builder.build_call(intrinsic_fn, &[arglist.into()], "").unwrap();
-}
-
-/// Invokes the [`llvm.stacksave`](https://llvm.org/docs/LangRef.html#llvm-stacksave-intrinsic)
-/// intrinsic.
-pub fn call_stacksave<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    name: Option<&str>,
-) -> PointerValue<'ctx> {
-    const FN_NAME: &str = "llvm.stacksave";
-
-    let intrinsic_fn = Intrinsic::find(FN_NAME)
-        .and_then(|intrinsic| intrinsic.get_declaration(&ctx.module, &[]))
-        .unwrap();
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[], name.unwrap_or_default())
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_pointer_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}
-
-/// Invokes the
-/// [`llvm.stackrestore`](https://llvm.org/docs/LangRef.html#llvm-stackrestore-intrinsic) intrinsic.
-///
-/// - `ptr`: The pointer storing the address to restore the stack to.
-pub fn call_stackrestore<'ctx>(ctx: &CodeGenContext<'ctx, '_>, ptr: PointerValue<'ctx>) {
-    const FN_NAME: &str = "llvm.stackrestore";
-
-    /*
-        SEE https://github.com/TheDan64/inkwell/issues/496
-
-        We want `llvm.stackrestore`, but the following would generate `llvm.stackrestore.p0i8`.
-        ```ignore
-        let intrinsic_fn = Intrinsic::find(FN_NAME)
-            .and_then(|intrinsic| intrinsic.get_declaration(&ctx.module, &[llvm_p0i8.into()]))
-            .unwrap();
-        ```
-
-        Temp workaround by manually declaring the intrinsic with the correct function name instead.
-    */
-    let intrinsic_fn = ctx.module.get_function(FN_NAME).unwrap_or_else(|| {
-        let llvm_void = ctx.ctx.void_type();
-        let llvm_i8 = ctx.ctx.i8_type();
-        let llvm_p0i8 = llvm_i8.ptr_type(AddressSpace::default());
-        let fn_type = llvm_void.fn_type(&[llvm_p0i8.into()], false);
-
-        ctx.module.add_function(FN_NAME, fn_type, None)
-    });
-
-    ctx.builder.build_call(intrinsic_fn, &[ptr.into()], "").unwrap();
-}
-
-/// Invokes the [`llvm.memcpy`](https://llvm.org/docs/LangRef.html#llvm-memcpy-intrinsic) intrinsic.
-///
-/// * `dest` - The pointer to the destination. Must be a pointer to an integer type.
-/// * `src` - The pointer to the source. Must be a pointer to an integer type.
-/// * `len` - The number of bytes to copy.
-/// * `is_volatile` - Whether the `memcpy` operation should be `volatile`.
-pub fn call_memcpy<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    dest: PointerValue<'ctx>,
-    src: PointerValue<'ctx>,
-    len: IntValue<'ctx>,
-    is_volatile: IntValue<'ctx>,
-) {
-    const FN_NAME: &str = "llvm.memcpy";
-
-    debug_assert!(dest.get_type().get_element_type().is_int_type());
-    debug_assert!(src.get_type().get_element_type().is_int_type());
-    debug_assert_eq!(
-        dest.get_type().get_element_type().into_int_type().get_bit_width(),
-        src.get_type().get_element_type().into_int_type().get_bit_width(),
-    );
-    debug_assert!(matches!(len.get_type().get_bit_width(), 32 | 64));
-    debug_assert_eq!(is_volatile.get_type().get_bit_width(), 1);
-
-    let llvm_dest_t = dest.get_type();
-    let llvm_src_t = src.get_type();
-    let llvm_len_t = len.get_type();
-
-    let intrinsic_fn = Intrinsic::find(FN_NAME)
-        .and_then(|intrinsic| {
-            intrinsic.get_declaration(
-                &ctx.module,
-                &[llvm_dest_t.into(), llvm_src_t.into(), llvm_len_t.into()],
-            )
-        })
-        .unwrap();
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[dest.into(), src.into(), len.into(), is_volatile.into()], "")
-        .unwrap();
-}
-
-/// Invokes the `llvm.memcpy` intrinsic.
-///
-/// Unlike [`call_memcpy`], this function accepts any type of pointer value. If `dest` or `src` is
-/// not a pointer to an integer, the pointer(s) will be cast to `i8*` before invoking `memcpy`.
-pub fn call_memcpy_generic<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    dest: PointerValue<'ctx>,
-    src: PointerValue<'ctx>,
-    len: IntValue<'ctx>,
-    is_volatile: IntValue<'ctx>,
-) {
-    let llvm_i8 = ctx.ctx.i8_type();
-    let llvm_p0i8 = llvm_i8.ptr_type(AddressSpace::default());
-
-    let dest_elem_t = dest.get_type().get_element_type();
-    let src_elem_t = src.get_type().get_element_type();
-
-    let dest = if matches!(dest_elem_t, IntType(t) if t.get_bit_width() == 8) {
-        dest
-    } else {
-        ctx.builder
-            .build_bit_cast(dest, llvm_p0i8, "")
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap()
-    };
-    let src = if matches!(src_elem_t, IntType(t) if t.get_bit_width() == 8) {
-        src
-    } else {
-        ctx.builder
-            .build_bit_cast(src, llvm_p0i8, "")
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap()
-    };
-
-    call_memcpy(ctx, dest, src, len, is_volatile);
-}
-
-/// Macro to find and generate build call for llvm intrinsic (body of llvm intrinsic function)
-///
-/// Arguments:
-/// * `$ctx:ident`: Reference to the current Code Generation Context
-/// * `$name:ident`: Optional name to be assigned to the llvm build call (Option<&str>)
-/// * `$llvm_name:literal`: Name of underlying llvm intrinsic function
-/// * `$map_fn:ident`: Mapping function to be applied on `BasicValue` (`BasicValue` -> Function Return Type).
-///   Use `BasicValueEnum::into_int_value` for Integer return type and
-///   `BasicValueEnum::into_float_value` for Float return type
-/// * `$llvm_ty:ident`: Type of first operand
-/// * `,($val:ident)*`: Comma separated list of operands
-macro_rules! generate_llvm_intrinsic_fn_body {
-    ($ctx:ident, $name:ident, $llvm_name:literal, $map_fn:expr, $llvm_ty:ident $(,$val:ident)*) => {{
-        const FN_NAME: &str = concat!("llvm.", $llvm_name);
-        let intrinsic_fn = Intrinsic::find(FN_NAME).and_then(|intrinsic| intrinsic.get_declaration(&$ctx.module, &[$llvm_ty.into()])).unwrap();
-        $ctx.builder.build_call(intrinsic_fn, &[$($val.into()),*],  $name.unwrap_or_default()).map(CallSiteValue::try_as_basic_value).map(|v| v.map_left($map_fn)).map(Either::unwrap_left).unwrap()
-    }};
-}
-
-/// Macro to generate the llvm intrinsic function using [`generate_llvm_intrinsic_fn_body`].
-///
-/// Arguments:
-/// * `float/int`: Indicates the return and argument type of the function
-/// * `$fn_name:ident`: The identifier of the rust function to be generated
-/// * `$llvm_name:literal`: Name of underlying llvm intrinsic function.
-///   Omit "llvm." prefix from the function name i.e. use "ceil" instead of "llvm.ceil"
-/// * `$val:ident`: The operand for unary operations
-/// * `$val1:ident`, `$val2:ident`: The operands for binary operations
-macro_rules! generate_llvm_intrinsic_fn {
-    ("float", $fn_name:ident, $llvm_name:literal, $val:ident) => {
-        #[doc = concat!("Invokes the [`", stringify!($llvm_name), "`](https://llvm.org/docs/LangRef.html#llvm-", stringify!($llvm_name), "-intrinsic) intrinsic." )]
-        pub fn $fn_name<'ctx> (
-            ctx: &CodeGenContext<'ctx, '_>,
-            $val: FloatValue<'ctx>,
-            name: Option<&str>,
-        ) -> FloatValue<'ctx> {
-            let llvm_ty = $val.get_type();
-            generate_llvm_intrinsic_fn_body!(ctx, name, $llvm_name, BasicValueEnum::into_float_value, llvm_ty, $val)
-        }
-    };
-    ("float", $fn_name:ident, $llvm_name:literal, $val1:ident, $val2:ident) => {
-        #[doc = concat!("Invokes the [`", stringify!($llvm_name), "`](https://llvm.org/docs/LangRef.html#llvm-", stringify!($llvm_name), "-intrinsic) intrinsic." )]
-        pub fn $fn_name<'ctx> (
-            ctx: &CodeGenContext<'ctx, '_>,
-            $val1: FloatValue<'ctx>,
-            $val2: FloatValue<'ctx>,
-            name: Option<&str>,
-        ) -> FloatValue<'ctx> {
-            debug_assert_eq!($val1.get_type(), $val2.get_type());
-            let llvm_ty = $val1.get_type();
-            generate_llvm_intrinsic_fn_body!(ctx, name, $llvm_name, BasicValueEnum::into_float_value, llvm_ty, $val1, $val2)
-        }
-    };
-    ("int", $fn_name:ident, $llvm_name:literal, $val1:ident, $val2:ident) => {
-        #[doc = concat!("Invokes the [`", stringify!($llvm_name), "`](https://llvm.org/docs/LangRef.html#llvm-", stringify!($llvm_name), "-intrinsic) intrinsic." )]
-        pub fn $fn_name<'ctx> (
-            ctx: &CodeGenContext<'ctx, '_>,
-            $val1: IntValue<'ctx>,
-            $val2: IntValue<'ctx>,
-            name: Option<&str>,
-        ) -> IntValue<'ctx> {
-            debug_assert_eq!($val1.get_type().get_bit_width(), $val2.get_type().get_bit_width());
-            let llvm_ty = $val1.get_type();
-            generate_llvm_intrinsic_fn_body!(ctx, name, $llvm_name, BasicValueEnum::into_int_value, llvm_ty, $val1, $val2)
-        }
-    };
-}
-
-/// Invokes the [`llvm.abs`](https://llvm.org/docs/LangRef.html#llvm-abs-intrinsic) intrinsic.
-///
-/// * `src` - The value for which the absolute value is to be returned.
-/// * `is_int_min_poison` - Whether `poison` is to be returned if `src` is `INT_MIN`.
-pub fn call_int_abs<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    src: IntValue<'ctx>,
-    is_int_min_poison: IntValue<'ctx>,
-    name: Option<&str>,
-) -> IntValue<'ctx> {
-    debug_assert_eq!(is_int_min_poison.get_type().get_bit_width(), 1);
-    debug_assert!(is_int_min_poison.is_const());
-
-    let src_type = src.get_type();
-    generate_llvm_intrinsic_fn_body!(
-        ctx,
-        name,
-        "abs",
-        BasicValueEnum::into_int_value,
-        src_type,
-        src,
-        is_int_min_poison
-    )
-}
-
-generate_llvm_intrinsic_fn!("int", call_int_smax, "smax", a, b);
-generate_llvm_intrinsic_fn!("int", call_int_smin, "smin", a, b);
-generate_llvm_intrinsic_fn!("int", call_int_umax, "umax", a, b);
-generate_llvm_intrinsic_fn!("int", call_int_umin, "umin", a, b);
-generate_llvm_intrinsic_fn!("int", call_expect, "expect", val, expected_val);
-
-generate_llvm_intrinsic_fn!("float", call_float_sqrt, "sqrt", val);
-generate_llvm_intrinsic_fn!("float", call_float_sin, "sin", val);
-generate_llvm_intrinsic_fn!("float", call_float_cos, "cos", val);
-generate_llvm_intrinsic_fn!("float", call_float_pow, "pow", val, power);
-generate_llvm_intrinsic_fn!("float", call_float_exp, "exp", val);
-generate_llvm_intrinsic_fn!("float", call_float_exp2, "exp2", val);
-generate_llvm_intrinsic_fn!("float", call_float_log, "log", val);
-generate_llvm_intrinsic_fn!("float", call_float_log10, "log10", val);
-generate_llvm_intrinsic_fn!("float", call_float_log2, "log2", val);
-generate_llvm_intrinsic_fn!("float", call_float_fabs, "fabs", src);
-generate_llvm_intrinsic_fn!("float", call_float_minnum, "minnum", val, power);
-generate_llvm_intrinsic_fn!("float", call_float_maxnum, "maxnum", val, power);
-generate_llvm_intrinsic_fn!("float", call_float_copysign, "copysign", mag, sgn);
-generate_llvm_intrinsic_fn!("float", call_float_floor, "floor", val);
-generate_llvm_intrinsic_fn!("float", call_float_ceil, "ceil", val);
-generate_llvm_intrinsic_fn!("float", call_float_round, "round", val);
-generate_llvm_intrinsic_fn!("float", call_float_rint, "rint", val);
-
-/// Invokes the [`llvm.powi`](https://llvm.org/docs/LangRef.html#llvm-powi-intrinsic) intrinsic.
-pub fn call_float_powi<'ctx>(
-    ctx: &CodeGenContext<'ctx, '_>,
-    val: FloatValue<'ctx>,
-    power: IntValue<'ctx>,
-    name: Option<&str>,
-) -> FloatValue<'ctx> {
-    const FN_NAME: &str = "llvm.powi";
-
-    let llvm_val_t = val.get_type();
-    let llvm_power_t = power.get_type();
-
-    let intrinsic_fn = Intrinsic::find(FN_NAME)
-        .and_then(|intrinsic| {
-            intrinsic.get_declaration(&ctx.module, &[llvm_val_t.into(), llvm_power_t.into()])
-        })
-        .unwrap();
-
-    ctx.builder
-        .build_call(intrinsic_fn, &[val.into(), power.into()], name.unwrap_or_default())
-        .map(CallSiteValue::try_as_basic_value)
-        .map(|v| v.map_left(BasicValueEnum::into_float_value))
-        .map(Either::unwrap_left)
-        .unwrap()
-}

nac3core/src/codegen/mod.rs

@@ -1,75 +1,50 @@
-use std::{
-    collections::{HashMap, HashSet},
-    sync::{
-        atomic::{AtomicBool, Ordering},
-        Arc,
-    },
-    thread,
-};
-
-use crossbeam::channel::{unbounded, Receiver, Sender};
-use inkwell::{
-    attributes::{Attribute, AttributeLoc},
-    basic_block::BasicBlock,
-    builder::Builder,
-    context::Context,
-    debug_info::{
-        AsDIScope, DICompileUnit, DIFlagsConstants, DIScope, DISubprogram, DebugInfoBuilder,
-    },
-    module::Module,
-    passes::PassBuilderOptions,
-    targets::{CodeModel, RelocMode, Target, TargetMachine, TargetTriple},
-    types::{AnyType, BasicType, BasicTypeEnum},
-    values::{BasicValueEnum, FunctionValue, IntValue, PhiValue, PointerValue},
-    AddressSpace, IntPredicate, OptimizationLevel,
-};
-use itertools::Itertools;
-use parking_lot::{Condvar, Mutex};
-
-use nac3parser::ast::{Location, Stmt, StrRef};
-
 use crate::{
     symbol_resolver::{StaticValue, SymbolResolver},
-    toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, TopLevelContext, TopLevelDef},
+    toplevel::{TopLevelContext, TopLevelDef},
     typecheck::{
         type_inferencer::{CodeLocation, PrimitiveStore},
         typedef::{CallId, FuncArg, Type, TypeEnum, Unifier},
     },
 };
-use concrete_type::{ConcreteType, ConcreteTypeEnum, ConcreteTypeStore};
+use crossbeam::channel::{unbounded, Receiver, Sender};
-pub use generator::{CodeGenerator, DefaultCodeGenerator};
+use inkwell::{
-use types::{ListType, NDArrayType, ProxyType, RangeType};
+    AddressSpace,
+    IntPredicate,
+    OptimizationLevel,
+    attributes::{Attribute, AttributeLoc},
+    basic_block::BasicBlock,
+    builder::Builder,
+    context::Context,
+    module::Module,
+    passes::PassBuilderOptions,
+    targets::{CodeModel, RelocMode, Target, TargetMachine, TargetTriple},
+    types::{AnyType, BasicType, BasicTypeEnum},
+    values::{BasicValueEnum, FunctionValue, IntValue, PhiValue, PointerValue},
+    debug_info::{
+        DebugInfoBuilder, DICompileUnit, DISubprogram, AsDIScope, DIFlagsConstants, DIScope
+    },
+};
+use itertools::Itertools;
+use nac3parser::ast::{Stmt, StrRef, Location};
+use parking_lot::{Condvar, Mutex};
+use std::collections::{HashMap, HashSet};
+use std::sync::{
+    atomic::{AtomicBool, Ordering},
+    Arc,
+};
+use std::thread;
 
-pub mod builtin_fns;
 pub mod concrete_type;
 pub mod expr;
-pub mod extern_fns;
 mod generator;
 pub mod irrt;
-pub mod llvm_intrinsics;
-pub mod numpy;
 pub mod stmt;
-pub mod types;
-pub mod values;
 
 #[cfg(test)]
 mod test;
 
-mod macros {
+use concrete_type::{ConcreteType, ConcreteTypeEnum, ConcreteTypeStore};
-    /// Codegen-variant of [`std::unreachable`] which accepts an instance of [`CodeGenContext`] as
+pub use generator::{CodeGenerator, DefaultCodeGenerator};
-    /// its first argument to provide Python source information to indicate the codegen location
-    /// causing the assertion.
-    macro_rules! codegen_unreachable {
-        ($ctx:expr $(,)?) => {
-            std::unreachable!("unreachable code while processing {}", &$ctx.current_loc)
-        };
-        ($ctx:expr, $($arg:tt)*) => {
-            std::unreachable!("unreachable code while processing {}: {}", &$ctx.current_loc, std::format!("{}", std::format_args!($($arg)+)))
-        };
-    }
-
-    pub(crate) use codegen_unreachable;
-}
 
 #[derive(Default)]
 pub struct StaticValueStore {
@@ -89,16 +64,6 @@ pub struct CodeGenLLVMOptions {
     pub target: CodeGenTargetMachineOptions,
 }
 
-impl CodeGenLLVMOptions {
-    /// Creates a [`TargetMachine`] using the target options specified by this struct.
-    ///
-    /// See [`Target::create_target_machine`].
-    #[must_use]
-    pub fn create_target_machine(&self) -> Option<TargetMachine> {
-        self.target.create_target_machine(self.opt_level)
-    }
-}
-
 /// Additional options for code generation for the target machine.
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct CodeGenTargetMachineOptions {
@@ -115,6 +80,7 @@ pub struct CodeGenTargetMachineOptions {
 }
 
 impl CodeGenTargetMachineOptions {
+
     /// Creates an instance of [`CodeGenTargetMachineOptions`] using the triple of the host machine.
     /// Other options are set to defaults.
     #[must_use]
@@ -143,11 +109,13 @@ impl CodeGenTargetMachineOptions {
     ///
     /// See [`Target::create_target_machine`].
     #[must_use]
-    pub fn create_target_machine(&self, level: OptimizationLevel) -> Option<TargetMachine> {
+    pub fn create_target_machine(
+        &self,
+        level: OptimizationLevel,
+    ) -> Option<TargetMachine> {
         let triple = TargetTriple::create(self.triple.as_str());
-        let target = Target::from_triple(&triple).unwrap_or_else(|_| {
+        let target = Target::from_triple(&triple)
-            panic!("could not create target from target triple {}", self.triple)
+            .unwrap_or_else(|_| panic!("could not create target from target triple {}", self.triple));
-        });
 
         target.create_target_machine(
             &triple,
@@ -155,7 +123,7 @@ impl CodeGenTargetMachineOptions {
             self.features.as_str(),
             level,
             self.reloc_mode,
-            self.code_model,
+            self.code_model
         )
     }
 }
@@ -166,23 +134,24 @@ pub struct CodeGenContext<'ctx, 'a> {
 
     /// The [Builder] instance for creating LLVM IR statements.
     pub builder: Builder<'ctx>,
-    /// The [`DebugInfoBuilder`], [compilation unit information][DICompileUnit], and
+    /// The [DebugInfoBuilder], [compilation unit information][DICompileUnit], and
     /// [scope information][DIScope] of this context.
     pub debug_info: (DebugInfoBuilder<'ctx>, DICompileUnit<'ctx>, DIScope<'ctx>),
 
     /// The module for which [this context][CodeGenContext] is generating into.
     pub module: Module<'ctx>,
 
-    /// The [`TopLevelContext`] associated with [this context][CodeGenContext].
+    /// The [TopLevelContext] associated with [this context][CodeGenContext].
     pub top_level: &'a TopLevelContext,
     pub unifier: Unifier,
     pub resolver: Arc<dyn SymbolResolver + Send + Sync>,
     pub static_value_store: Arc<Mutex<StaticValueStore>>,
 
-    /// A [`HashMap`] containing the mapping between the names of variables currently in-scope and
+    /// A [HashMap] containing the mapping between the names of variables currently in-scope and
     /// its value information.
     pub var_assignment: HashMap<StrRef, VarValue<'ctx>>,
 
+    ///
     pub type_cache: HashMap<Type, BasicTypeEnum<'ctx>>,
     pub primitives: PrimitiveStore,
     pub calls: Arc<HashMap<CodeLocation, CallId>>,
@@ -191,24 +160,24 @@ pub struct CodeGenContext<'ctx, 'a> {
     /// Cache for constant strings.
     pub const_strings: HashMap<String, BasicValueEnum<'ctx>>,
 
-    /// [`BasicBlock`] containing all `alloca` statements for the current function.
+    /// [BasicBlock] containing all `alloca` statements for the current function.
     pub init_bb: BasicBlock<'ctx>,
     pub exception_val: Option<PointerValue<'ctx>>,
 
     /// The header and exit basic blocks of a loop in this context. See
-    /// <https://llvm.org/docs/LoopTerminology.html> for explanation of these terminology.
+    /// https://llvm.org/docs/LoopTerminology.html for explanation of these terminology.
     pub loop_target: Option<(BasicBlock<'ctx>, BasicBlock<'ctx>)>,
 
-    /// The target [`BasicBlock`] to jump to when performing stack unwind.
+    /// The target [BasicBlock] to jump to when performing stack unwind.
     pub unwind_target: Option<BasicBlock<'ctx>>,
 
-    /// The target [`BasicBlock`] to jump to before returning from the function.
+    /// The target [BasicBlock] to jump to before returning from the function.
     ///
     /// If this field is [None] when generating a return from a function, `ret` with no argument can
     /// be emitted.
     pub return_target: Option<BasicBlock<'ctx>>,
 
-    /// The [`PointerValue`] containing the return value of the function.
+    /// The [PointerValue] containing the return value of the function.
     pub return_buffer: Option<PointerValue<'ctx>>,
 
     // outer catch clauses
@@ -217,7 +186,7 @@ pub struct CodeGenContext<'ctx, 'a> {
 
     /// Whether `sret` is needed for the first parameter of the function.
     ///
-    /// See [`need_sret`].
+    /// See [need_sret].
     pub need_sret: bool,
 
     /// The current source location.
@@ -225,6 +194,7 @@ pub struct CodeGenContext<'ctx, 'a> {
 }
 
 impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
+
     /// Whether the [current basic block][Builder::get_insert_block] referenced by `builder`
     /// contains a [terminator statement][BasicBlock::get_terminator].
     pub fn is_terminated(&self) -> bool {
@@ -266,10 +236,11 @@ pub struct WorkerRegistry {
     static_value_store: Arc<Mutex<StaticValueStore>>,
 
     /// LLVM-related options for code generation.
-    pub llvm_options: CodeGenLLVMOptions,
+    llvm_options: CodeGenLLVMOptions,
 }
 
 impl WorkerRegistry {
+
     /// Creates workers for this registry.
     #[must_use]
     pub fn create_workers<G: CodeGenerator + Send + 'static>(
@@ -304,15 +275,9 @@ impl WorkerRegistry {
             let registry = registry.clone();
             let registry2 = registry.clone();
             let f = f.clone();
-
+            let handle = thread::spawn(move || {
-            let worker_thread_name =
+                registry.worker_thread(generator.as_mut(), &f);
-                format!("codegen-worker-{worker_id}", worker_id = generator.get_name());
+            });
-            let handle = thread::Builder::new()
-                .name(worker_thread_name)
-                .spawn(move || {
-                    registry.worker_thread(generator.as_mut(), &f);
-                })
-                .unwrap();
             let handle = thread::spawn(move || {
                 if let Err(e) = handle.join() {
                     if let Some(e) = e.downcast_ref::<&'static str>() {
@@ -369,10 +334,6 @@ impl WorkerRegistry {
         let mut builder = context.create_builder();
         let mut module = context.create_module(generator.get_name());
 
-        let target_machine = self.llvm_options.create_target_machine().unwrap();
-        module.set_data_layout(&target_machine.get_target_data().get_data_layout());
-        module.set_triple(&target_machine.get_triple());
-
         module.add_basic_value_flag(
             "Debug Info Version",
             inkwell::module::FlagBehavior::Warning,
@@ -396,20 +357,12 @@ impl WorkerRegistry {
                     errors.insert(e);
                     // create a new empty module just to continue codegen and collect errors
                     module = context.create_module(&format!("{}_recover", generator.get_name()));
-
-                    let target_machine = self.llvm_options.create_target_machine().unwrap();
-                    module.set_data_layout(&target_machine.get_target_data().get_data_layout());
-                    module.set_triple(&target_machine.get_triple());
                 }
             }
             *self.task_count.lock() -= 1;
             self.wait_condvar.notify_all();
         }
-        assert!(
+        assert!(errors.is_empty(), "Codegen error: {}", errors.into_iter().sorted().join("\n----------\n"));
-            errors.is_empty(),
-            "Codegen error: {}",
-            errors.into_iter().sorted().join("\n----------\n")
-        );
 
         let result = module.verify();
         if let Err(err) = result {
@@ -422,20 +375,13 @@ impl WorkerRegistry {
             .llvm_options
             .target
             .create_target_machine(self.llvm_options.opt_level)
-            .unwrap_or_else(|| {
+            .unwrap_or_else(|| panic!("could not create target machine from properties {:?}", self.llvm_options.target));
-                panic!(
-                    "could not create target machine from properties {:?}",
-                    self.llvm_options.target
-                )
-            });
         let passes = format!("default<O{}>", self.llvm_options.opt_level as u32);
         let result = module.run_passes(passes.as_str(), &target_machine, pass_options);
         if let Err(err) = result {
-            panic!(
+            panic!("Failed to run optimization for module `{}`: {}",
-                "Failed to run optimization for module `{}`: {}",
+                   module.get_name().to_str().unwrap(),
-                module.get_name().to_str().unwrap(),
+                   err.to_string());
-                err.to_string()
-            );
         }
 
         f.run(&module);
@@ -461,14 +407,14 @@ pub struct CodeGenTask {
 ///
 /// This function is used to obtain the in-memory representation of `ty`, e.g. a `bool` variable
 /// would be represented by an `i8`.
-#[allow(clippy::too_many_arguments)]
+fn get_llvm_type<'ctx>(
-fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
     ctx: &'ctx Context,
     module: &Module<'ctx>,
-    generator: &G,
+    generator: &mut dyn CodeGenerator,
     unifier: &mut Unifier,
     top_level: &TopLevelContext,
     type_cache: &mut HashMap<Type, BasicTypeEnum<'ctx>>,
+    primitives: &PrimitiveStore,
     ty: Type,
 ) -> BasicTypeEnum<'ctx> {
     use TypeEnum::*;
@@ -478,51 +424,29 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
         let ty_enum = unifier.get_ty(ty);
         let result = match &*ty_enum {
             TObj { obj_id, fields, .. } => {
-                // check to avoid treating non-class primitives as classes
+                // check to avoid treating primitives other than Option as classes
-                if PrimDef::contains_id(*obj_id) {
+                if obj_id.0 <= 10 {
-                    return match &*unifier.get_ty_immutable(ty) {
+                    match (unifier.get_ty(ty).as_ref(), unifier.get_ty(primitives.option).as_ref())
-                        TObj { obj_id, params, .. } if *obj_id == PrimDef::Option.id() => {
+                    {
-                            get_llvm_type(
+                        (
+                            TObj { obj_id, params, .. },
+                            TObj { obj_id: opt_id, .. },
+                        ) if *obj_id == *opt_id => {
+                            return get_llvm_type(
                                 ctx,
                                 module,
                                 generator,
                                 unifier,
                                 top_level,
                                 type_cache,
+                                primitives,
                                 *params.iter().next().unwrap().1,
                             )
                             .ptr_type(AddressSpace::default())
-                            .into()
+                            .into();
                         }
-
+                        _ => unreachable!("must be option type"),
-                        TObj { obj_id, params, .. } if *obj_id == PrimDef::List.id() => {
+                    }
-                            let element_type = get_llvm_type(
-                                ctx,
-                                module,
-                                generator,
-                                unifier,
-                                top_level,
-                                type_cache,
-                                *params.iter().next().unwrap().1,
-                            );
-
-                            ListType::new(generator, ctx, element_type).as_base_type().into()
-                        }
-
-                        TObj { obj_id, .. } if *obj_id == PrimDef::NDArray.id() => {
-                            let (dtype, _) = unpack_ndarray_var_tys(unifier, ty);
-                            let element_type = get_llvm_type(
-                                ctx, module, generator, unifier, top_level, type_cache, dtype,
-                            );
-
-                            NDArrayType::new(generator, ctx, element_type).as_base_type().into()
-                        }
-
-                        _ => unreachable!(
-                            "LLVM type for primitive {} is missing",
-                            unifier.stringify(ty)
-                        ),
-                    };
                 }
                 // a struct with fields in the order of declaration
                 let top_level_defs = top_level.definitions.read();
@@ -538,7 +462,7 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
                     let struct_type = ctx.opaque_struct_type(&name);
                     type_cache.insert(
                         unifier.get_representative(ty),
-                        struct_type.ptr_type(AddressSpace::default()).into(),
+                        struct_type.ptr_type(AddressSpace::default()).into()
                     );
                     let fields = fields_list
                         .iter()
@@ -550,6 +474,7 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
                                 unifier,
                                 top_level,
                                 type_cache,
+                                primitives,
                                 fields[&f.0].0,
                             )
                         })
@@ -557,20 +482,31 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
                     struct_type.set_body(&fields, false);
                     struct_type.ptr_type(AddressSpace::default()).into()
                 };
-                return ty;
+                return ty
             }
-            TTuple { ty, is_vararg_ctx } => {
+            TTuple { ty } => {
                 // a struct with fields in the order present in the tuple
-                assert!(!is_vararg_ctx, "Tuples in vararg context must be instantiated with the correct number of arguments before calling get_llvm_type");
-
                 let fields = ty
                     .iter()
                     .map(|ty| {
-                        get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, *ty)
+                        get_llvm_type(
+                            ctx, module, generator, unifier, top_level, type_cache, primitives, *ty,
+                        )
                     })
                     .collect_vec();
                 ctx.struct_type(&fields, false).into()
             }
+            TList { ty } => {
+                // a struct with an integer and a pointer to an array
+                let element_type = get_llvm_type(
+                    ctx, module, generator, unifier, top_level, type_cache, primitives, *ty,
+                );
+                let fields = [
+                    element_type.ptr_type(AddressSpace::default()).into(),
+                    generator.get_size_type(ctx).into(),
+                ];
+                ctx.struct_type(&fields, false).ptr_type(AddressSpace::default()).into()
+            }
             TVirtual { .. } => unimplemented!(),
             _ => unreachable!("{}", ty_enum.get_type_name()),
         };
@@ -588,11 +524,10 @@ fn get_llvm_type<'ctx, G: CodeGenerator + ?Sized>(
 /// ABI representation is that the in-memory representation must be at least byte-sized and must
 /// be byte-aligned for the variable to be addressable in memory, whereas there is no such
 /// restriction for ABI representations.
-#[allow(clippy::too_many_arguments)]
+fn get_llvm_abi_type<'ctx>(
-fn get_llvm_abi_type<'ctx, G: CodeGenerator + ?Sized>(
     ctx: &'ctx Context,
     module: &Module<'ctx>,
-    generator: &G,
+    generator: &mut dyn CodeGenerator,
     unifier: &mut Unifier,
     top_level: &TopLevelContext,
     type_cache: &mut HashMap<Type, BasicTypeEnum<'ctx>>,
@@ -601,10 +536,10 @@ fn get_llvm_abi_type<'ctx, G: CodeGenerator + ?Sized>(
 ) -> BasicTypeEnum<'ctx> {
     // If the type is used in the definition of a function, return `i1` instead of `i8` for ABI
     // consistency.
-    if unifier.unioned(ty, primitives.bool) {
+    return if unifier.unioned(ty, primitives.bool) {
         ctx.bool_type().into()
     } else {
-        get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, ty)
+        get_llvm_type(ctx, module, generator, unifier, top_level, type_cache, primitives, ty)
     }
 }
 
@@ -621,62 +556,23 @@ fn need_sret(ty: BasicTypeEnum) -> bool {
         match ty {
             BasicTypeEnum::IntType(_) | BasicTypeEnum::PointerType(_) => false,
             BasicTypeEnum::FloatType(_) if maybe_large => false,
-            BasicTypeEnum::StructType(ty) if maybe_large && ty.count_fields() <= 2 => {
+            BasicTypeEnum::StructType(ty) if maybe_large && ty.count_fields() <= 2 =>
-                ty.get_field_types().iter().any(|ty| need_sret_impl(*ty, false))
+                ty.get_field_types().iter().any(|ty| need_sret_impl(*ty, false)),
-            }
             _ => true,
         }
     }
     need_sret_impl(ty, true)
 }
 
-/// Returns the [`BasicTypeEnum`] representing a `va_list` struct for variadic arguments.
-fn get_llvm_valist_type<'ctx>(ctx: &'ctx Context, triple: &TargetTriple) -> BasicTypeEnum<'ctx> {
-    let triple = TargetMachine::normalize_triple(triple);
-    let triple = triple.as_str().to_str().unwrap();
-    let arch = triple.split('-').next().unwrap();
-
-    let llvm_pi8 = ctx.i8_type().ptr_type(AddressSpace::default());
-
-    // Referenced from parseArch() in llvm/lib/Support/Triple.cpp
-    match arch {
-        "i386" | "i486" | "i586" | "i686" | "riscv32" => {
-            ctx.i8_type().ptr_type(AddressSpace::default()).into()
-        }
-        "amd64" | "x86_64" | "x86_64h" => {
-            let llvm_i32 = ctx.i32_type();
-
-            let va_list_tag = ctx.opaque_struct_type("struct.__va_list_tag");
-            va_list_tag.set_body(
-                &[llvm_i32.into(), llvm_i32.into(), llvm_pi8.into(), llvm_pi8.into()],
-                false,
-            );
-            va_list_tag.into()
-        }
-        "armv7" => {
-            let va_list = ctx.opaque_struct_type("struct.__va_list");
-            va_list.set_body(&[llvm_pi8.into()], false);
-            va_list.into()
-        }
-        triple => {
-            todo!("Unsupported platform for varargs: {triple}")
-        }
-    }
-}
-
 /// Implementation for generating LLVM IR for a function.
-pub fn gen_func_impl<
+pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenContext) -> Result<(), String>> (
-    'ctx,
-    G: CodeGenerator,
-    F: FnOnce(&mut G, &mut CodeGenContext) -> Result<(), String>,
->(
     context: &'ctx Context,
     generator: &mut G,
     registry: &WorkerRegistry,
     builder: Builder<'ctx>,
     module: Module<'ctx>,
     task: CodeGenTask,
-    codegen_function: F,
+    codegen_function: F
 ) -> Result<(Builder<'ctx>, Module<'ctx>, FunctionValue<'ctx>), (Builder<'ctx>, String)> {
     let top_level_ctx = registry.top_level_ctx.clone();
     let static_value_store = registry.static_value_store.clone();
@@ -684,7 +580,6 @@ pub fn gen_func_impl<
         let (unifier, primitives) = &top_level_ctx.unifiers.read()[task.unifier_index];
         (Unifier::from_shared_unifier(unifier), *primitives)
     };
-    unifier.put_primitive_store(&primitives);
     unifier.top_level = Some(top_level_ctx.clone());
 
     let mut cache = HashMap::new();
@@ -718,7 +613,6 @@ pub fn gen_func_impl<
         str: unifier.get_representative(primitives.str),
         exception: unifier.get_representative(primitives.exception),
         option: unifier.get_representative(primitives.option),
-        ..primitives
     };
 
     let mut type_cache: HashMap<_, _> = [
@@ -740,10 +634,10 @@ pub fn gen_func_impl<
                     str_type.set_body(&fields, false);
                     str_type.into()
                 }
-                Some(t) => t.as_basic_type_enum(),
+                Some(t) => t.as_basic_type_enum()
             }
         }),
-        (primitives.range, RangeType::new(context).as_base_type().into()),
+        (primitives.range, context.i32_type().array_type(3).ptr_type(AddressSpace::default()).into()),
         (primitives.exception, {
             let name = "Exception";
             if let Some(t) = module.get_struct_type(name) {
@@ -757,7 +651,7 @@ pub fn gen_func_impl<
                 exception.set_body(&fields, false);
                 exception.ptr_type(AddressSpace::default()).as_basic_type_enum()
             }
-        }),
+        })
     ]
     .iter()
     .copied()
@@ -765,7 +659,8 @@ pub fn gen_func_impl<
     // NOTE: special handling of option cannot use this type cache since it contains type var,
     // handled inside get_llvm_type instead
 
-    let ConcreteTypeEnum::TFunc { args, ret, .. } = task.store.get(task.signature) else {
+    let ConcreteTypeEnum::TFunc { args, ret, .. } =
+        task.store.get(task.signature) else {
         unreachable!()
     };
 
@@ -775,7 +670,6 @@ pub fn gen_func_impl<
                 name: arg.name,
                 ty: task.store.to_unifier_type(&mut unifier, &primitives, arg.ty, &mut cache),
                 default_value: arg.default_value.clone(),
-                is_vararg: arg.is_vararg,
             })
             .collect_vec(),
         task.store.to_unifier_type(&mut unifier, &primitives, *ret, &mut cache),
@@ -783,25 +677,13 @@ pub fn gen_func_impl<
     let ret_type = if unifier.unioned(ret, primitives.none) {
         None
     } else {
-        Some(get_llvm_abi_type(
+        Some(get_llvm_abi_type(context, &module, generator, &mut unifier, top_level_ctx.as_ref(), &mut type_cache, &primitives, ret))
-            context,
-            &module,
-            generator,
-            &mut unifier,
-            top_level_ctx.as_ref(),
-            &mut type_cache,
-            &primitives,
-            ret,
-        ))
     };
 
     let has_sret = ret_type.map_or(false, |ty| need_sret(ty));
     let mut params = args
         .iter()
-        .filter(|arg| !arg.is_vararg)
         .map(|arg| {
-            debug_assert!(!arg.is_vararg);
-
             get_llvm_abi_type(
                 context,
                 &module,
@@ -820,12 +702,9 @@ pub fn gen_func_impl<
         params.insert(0, ret_type.unwrap().ptr_type(AddressSpace::default()).into());
     }
 
-    debug_assert!(matches!(args.iter().filter(|arg| arg.is_vararg).count(), 0..=1));
-    let vararg_arg = args.iter().find(|arg| arg.is_vararg);
-
     let fn_type = match ret_type {
-        Some(ret_type) if !has_sret => ret_type.fn_type(&params, vararg_arg.is_some()),
+        Some(ret_type) if !has_sret => ret_type.fn_type(&params, false),
-        _ => context.void_type().fn_type(&params, vararg_arg.is_some()),
+        _ => context.void_type().fn_type(&params, false)
     };
 
     let symbol = &task.symbol_name;
@@ -840,23 +719,18 @@ pub fn gen_func_impl<
         fn_val.set_personality_function(personality);
     }
     if has_sret {
-        fn_val.add_attribute(
+        fn_val.add_attribute(AttributeLoc::Param(0),
-            AttributeLoc::Param(0),
+            context.create_type_attribute(Attribute::get_named_enum_kind_id("sret"),
-            context.create_type_attribute(
+            ret_type.unwrap().as_any_type_enum()));
-                Attribute::get_named_enum_kind_id("sret"),
-                ret_type.unwrap().as_any_type_enum(),
-            ),
-        );
     }
 
     let init_bb = context.append_basic_block(fn_val, "init");
     builder.position_at_end(init_bb);
     let body_bb = context.append_basic_block(fn_val, "body");
 
-    // Store non-vararg argument values into local variables
     let mut var_assignment = HashMap::new();
     let offset = u32::from(has_sret);
-    for (n, arg) in args.iter().enumerate().filter(|(_, arg)| !arg.is_vararg) {
+    for (n, arg) in args.iter().enumerate() {
         let param = fn_val.get_nth_param((n as u32) + offset).unwrap();
         let local_type = get_llvm_type(
             context,
@@ -865,10 +739,13 @@ pub fn gen_func_impl<
             &mut unifier,
             top_level_ctx.as_ref(),
             &mut type_cache,
+            &primitives,
             arg.ty,
         );
-        let alloca =
+        let alloca = builder.build_alloca(
-            builder.build_alloca(local_type, &format!("{}.addr", &arg.name.to_string())).unwrap();
+            local_type,
+            &format!("{}.addr", &arg.name.to_string()),
+        );
 
         // Remap boolean parameters into i8
         let param = if local_type.is_int_type() && param.is_int_value() {
@@ -879,22 +756,19 @@ pub fn gen_func_impl<
                 bool_to_i8(&builder, context, param_val)
             } else {
                 param_val
-            }
+            }.into()
-            .into()
         } else {
             param
         };
 
-        builder.build_store(alloca, param).unwrap();
+        builder.build_store(alloca, param);
         var_assignment.insert(arg.name, (alloca, None, 0));
     }
 
-    // TODO: Save vararg parameters as list
-
     let return_buffer = if has_sret {
         Some(fn_val.get_nth_param(0).unwrap().into_pointer_value())
     } else {
-        fn_type.get_return_type().map(|v| builder.build_alloca(v, "$ret").unwrap())
+        fn_type.get_return_type().map(|v| builder.build_alloca(v, "$ret"))
     };
 
     let static_values = {
@@ -906,7 +780,7 @@ pub fn gen_func_impl<
         *static_val = Some(v);
     }
 
-    builder.build_unconditional_branch(body_bb).unwrap();
+    builder.build_unconditional_branch(body_bb);
     builder.position_at_end(body_bb);
 
     let (dibuilder, compile_unit) = module.create_debug_info_builder(
@@ -915,8 +789,11 @@ pub fn gen_func_impl<
         /* filename */
         &task
             .body
-            .first()
+            .get(0)
-            .map_or_else(|| "<nac3_internal>".to_string(), |f| f.location.file.0.to_string()),
+            .map_or_else(
+                || "<nac3_internal>".to_string(),
+                |f| f.location.file.0.to_string(),
+            ),
         /* directory */ "",
         /* producer */ "NAC3",
         /* is_optimized */ registry.llvm_options.opt_level != OptimizationLevel::None,
@@ -942,7 +819,7 @@ pub fn gen_func_impl<
         inkwell::debug_info::DIFlags::PUBLIC,
     );
     let (row, col) =
-        task.body.first().map_or_else(|| (0, 0), |b| (b.location.row, b.location.column));
+        task.body.get(0).map_or_else(|| (0, 0), |b| (b.location.row, b.location.column));
     let func_scope: DISubprogram<'_> = dibuilder.create_function(
         /* scope */ compile_unit.as_debug_info_scope(),
         /* func name */ symbol,
@@ -989,15 +866,15 @@ pub fn gen_func_impl<
         row as u32,
         col as u32,
         func_scope.as_debug_info_scope(),
-        None,
+        None
     );
     code_gen_context.builder.set_current_debug_location(loc);
-
+    
     let result = codegen_function(generator, &mut code_gen_context);
 
     // after static analysis, only void functions can have no return at the end.
     if !code_gen_context.is_terminated() {
-        code_gen_context.builder.build_return(None).unwrap();
+        code_gen_context.builder.build_return(None);
     }
 
     code_gen_context.builder.unset_current_debug_location();
@@ -1039,14 +916,12 @@ fn bool_to_i1<'ctx>(builder: &Builder<'ctx>, bool_value: IntValue<'ctx>) -> IntV
     if bool_value.get_type().get_bit_width() == 1 {
         bool_value
     } else {
-        builder
+        builder.build_int_compare(
-            .build_int_compare(
+            IntPredicate::NE,
-                IntPredicate::NE,
+            bool_value,
-                bool_value,
+            bool_value.get_type().const_zero(),
-                bool_value.get_type().const_zero(),
+            "tobool"
-                "tobool",
+        )
-            )
-            .unwrap()
     }
 }
 
@@ -1054,23 +929,21 @@ fn bool_to_i1<'ctx>(builder: &Builder<'ctx>, bool_value: IntValue<'ctx>) -> IntV
 fn bool_to_i8<'ctx>(
     builder: &Builder<'ctx>,
     ctx: &'ctx Context,
-    bool_value: IntValue<'ctx>,
+    bool_value: IntValue<'ctx>
 ) -> IntValue<'ctx> {
     let value_bits = bool_value.get_type().get_bit_width();
     match value_bits {
         8 => bool_value,
-        1 => builder.build_int_z_extend(bool_value, ctx.i8_type(), "frombool").unwrap(),
+        1 => builder.build_int_z_extend(bool_value, ctx.i8_type(), "frombool"),
         _ => bool_to_i8(
             builder,
             ctx,
-            builder
+            builder.build_int_compare(
-                .build_int_compare(
+                IntPredicate::NE,
-                    IntPredicate::NE,
+                bool_value,
-                    bool_value,
+                bool_value.get_type().const_zero(),
-                    bool_value.get_type().const_zero(),
+                ""
-                    "",
+            )
-                )
-                .unwrap(),
         ),
     }
 }
@@ -1096,26 +969,9 @@ fn gen_in_range_check<'ctx>(
     stop: IntValue<'ctx>,
     step: IntValue<'ctx>,
 ) -> IntValue<'ctx> {
-    let sign = ctx
+    let sign = ctx.builder.build_int_compare(IntPredicate::SGT, step, ctx.ctx.i32_type().const_zero(), "");
-        .builder
+    let lo = ctx.builder.build_select(sign, value, stop, "").into_int_value();
-        .build_int_compare(IntPredicate::SGT, step, ctx.ctx.i32_type().const_zero(), "")
+    let hi = ctx.builder.build_select(sign, stop, value, "").into_int_value();
-        .unwrap();
-    let lo = ctx
-        .builder
-        .build_select(sign, value, stop, "")
-        .map(BasicValueEnum::into_int_value)
-        .unwrap();
-    let hi = ctx
-        .builder
-        .build_select(sign, stop, value, "")
-        .map(BasicValueEnum::into_int_value)
-        .unwrap();
 
-    ctx.builder.build_int_compare(IntPredicate::SLT, lo, hi, "cmp").unwrap()
+    ctx.builder.build_int_compare(IntPredicate::SLT, lo, hi, "cmp")
-}
-
-/// Returns the internal name for the `va_count` argument, used to indicate the number of arguments
-/// passed to the variadic function.
-fn get_va_count_arg_name(arg_name: StrRef) -> StrRef {
-    format!("__{}_va_count", &arg_name).into()
 }

nac3core/src/codegen/test.rs

@@ -1,37 +1,29 @@
-use std::{
+use crate::{
-    collections::{HashMap, HashSet},
+    codegen::{
-    sync::Arc,
+        concrete_type::ConcreteTypeStore, CodeGenContext, CodeGenLLVMOptions,
+        CodeGenTargetMachineOptions, CodeGenTask, DefaultCodeGenerator, WithCall, WorkerRegistry,
+    },
+    symbol_resolver::{SymbolResolver, ValueEnum},
+    toplevel::{
+        composer::TopLevelComposer, DefinitionId, FunInstance, TopLevelContext, TopLevelDef,
+    },
+    typecheck::{
+        type_inferencer::{FunctionData, Inferencer, PrimitiveStore},
+        typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier},
+    },
 };
-
-use indexmap::IndexMap;
 use indoc::indoc;
 use inkwell::{
     targets::{InitializationConfig, Target},
-    OptimizationLevel,
+    OptimizationLevel
 };
 use nac3parser::{
-    ast::{fold::Fold, FileName, StrRef},
+    ast::{fold::Fold, StrRef},
     parser::parse_program,
 };
 use parking_lot::RwLock;
-
+use std::collections::{HashMap, HashSet};
-use super::{
+use std::sync::Arc;
-    concrete_type::ConcreteTypeStore,
-    types::{ListType, NDArrayType, ProxyType, RangeType},
-    CodeGenContext, CodeGenLLVMOptions, CodeGenTargetMachineOptions, CodeGenTask, CodeGenerator,
-    DefaultCodeGenerator, WithCall, WorkerRegistry,
-};
-use crate::{
-    symbol_resolver::{SymbolResolver, ValueEnum},
-    toplevel::{
-        composer::{ComposerConfig, TopLevelComposer},
-        DefinitionId, FunInstance, TopLevelContext, TopLevelDef,
-    },
-    typecheck::{
-        type_inferencer::{FunctionData, IdentifierInfo, Inferencer, PrimitiveStore},
-        typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
-    },
-};
 
 struct Resolver {
     id_to_type: HashMap<StrRef, Type>,
@@ -60,14 +52,13 @@ impl SymbolResolver for Resolver {
         _: &PrimitiveStore,
         str: StrRef,
     ) -> Result<Type, String> {
-        self.id_to_type.get(&str).copied().ok_or_else(|| format!("cannot find symbol `{str}`"))
+        self.id_to_type.get(&str).cloned().ok_or_else(|| format!("cannot find symbol `{}`", str))
     }
 
-    fn get_symbol_value<'ctx>(
+    fn get_symbol_value<'ctx, 'a>(
         &self,
         _: StrRef,
-        _: &mut CodeGenContext<'ctx, '_>,
+        _: &mut CodeGenContext<'ctx, 'a>,
-        _: &mut dyn CodeGenerator,
     ) -> Option<ValueEnum<'ctx>> {
         unimplemented!()
     }
@@ -76,8 +67,10 @@ impl SymbolResolver for Resolver {
         self.id_to_def
             .read()
             .get(&id)
-            .copied()
+            .cloned()
-            .ok_or_else(|| HashSet::from([format!("cannot find symbol `{id}`")]))
+            .ok_or_else(|| HashSet::from([
+                format!("cannot find symbol `{}`", id),
+            ]))
     }
 
     fn get_string_id(&self, _: &str) -> i32 {
@@ -96,9 +89,9 @@ fn test_primitives() {
         d = a if c == 1 else 0
         return d
         "};
-    let statements = parse_program(source, FileName::default()).unwrap();
+    let statements = parse_program(source, Default::default()).unwrap();
 
-    let composer = TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 32).0;
+    let composer: TopLevelComposer = Default::default();
     let mut unifier = composer.unifier.clone();
     let primitives = composer.primitives_ty;
     let top_level = Arc::new(composer.make_top_level_context());
@@ -107,27 +100,17 @@ fn test_primitives() {
     let resolver = Arc::new(Resolver {
         id_to_type: HashMap::new(),
         id_to_def: RwLock::new(HashMap::new()),
-        class_names: HashMap::default(),
+        class_names: Default::default(),
     }) as Arc<dyn SymbolResolver + Send + Sync>;
 
     let threads = vec![DefaultCodeGenerator::new("test".into(), 32).into()];
     let signature = FunSignature {
         args: vec![
-            FuncArg {
+            FuncArg { name: "a".into(), ty: primitives.int32, default_value: None },
-                name: "a".into(),
+            FuncArg { name: "b".into(), ty: primitives.int32, default_value: None },
-                ty: primitives.int32,
-                default_value: None,
-                is_vararg: false,
-            },
-            FuncArg {
-                name: "b".into(),
-                ty: primitives.int32,
-                default_value: None,
-                is_vararg: false,
-            },
         ],
         ret: primitives.int32,
-        vars: VarMap::new(),
+        vars: HashMap::new(),
     };
 
     let mut store = ConcreteTypeStore::new();
@@ -142,13 +125,12 @@ fn test_primitives() {
     };
     let mut virtual_checks = Vec::new();
     let mut calls = HashMap::new();
-    let mut identifiers: HashMap<_, _> =
+    let mut identifiers: HashSet<_> = ["a".into(), "b".into()].iter().cloned().collect();
-        ["a".into(), "b".into()].map(|id| (id, IdentifierInfo::default())).into();
     let mut inferencer = Inferencer {
         top_level: &top_level,
         function_data: &mut function_data,
         unifier: &mut unifier,
-        variable_mapping: HashMap::default(),
+        variable_mapping: Default::default(),
         primitives: &primitives,
         virtual_checks: &mut virtual_checks,
         calls: &mut calls,
@@ -172,7 +154,7 @@ fn test_primitives() {
     });
 
     let task = CodeGenTask {
-        subst: Vec::default(),
+        subst: Default::default(),
         symbol_name: "testing".into(),
         body: Arc::new(statements),
         unifier_index: 0,
@@ -204,8 +186,6 @@ fn test_primitives() {
         let expected = indoc! {"
             ; ModuleID = 'test'
             source_filename = \"test\"
-            target datalayout = \"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128\"
-            target triple = \"x86_64-unknown-linux-gnu\"
 
             ; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
             define i32 @testing(i32 %0, i32 %1) local_unnamed_addr #0 !dbg !4 {
@@ -245,7 +225,12 @@ fn test_primitives() {
         opt_level: OptimizationLevel::Default,
         target: CodeGenTargetMachineOptions::from_host_triple(),
     };
-    let (registry, handles) = WorkerRegistry::create_workers(threads, top_level, &llvm_options, &f);
+    let (registry, handles) = WorkerRegistry::create_workers(
+        threads,
+        top_level,
+        &llvm_options,
+        &f
+    );
     registry.add_task(task);
     registry.wait_tasks_complete(handles);
 }
@@ -256,28 +241,23 @@ fn test_simple_call() {
         a = foo(a)
         return a * 2
         "};
-    let statements_1 = parse_program(source_1, FileName::default()).unwrap();
+    let statements_1 = parse_program(source_1, Default::default()).unwrap();
 
     let source_2 = indoc! { "
         return a + 1
         "};
-    let statements_2 = parse_program(source_2, FileName::default()).unwrap();
+    let statements_2 = parse_program(source_2, Default::default()).unwrap();
 
-    let composer = TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 32).0;
+    let composer: TopLevelComposer = Default::default();
     let mut unifier = composer.unifier.clone();
     let primitives = composer.primitives_ty;
     let top_level = Arc::new(composer.make_top_level_context());
     unifier.top_level = Some(top_level.clone());
 
     let signature = FunSignature {
-        args: vec![FuncArg {
+        args: vec![FuncArg { name: "a".into(), ty: primitives.int32, default_value: None }],
-            name: "a".into(),
-            ty: primitives.int32,
-            default_value: None,
-            is_vararg: false,
-        }],
         ret: primitives.int32,
-        vars: VarMap::new(),
+        vars: HashMap::new(),
     };
     let fun_ty = unifier.add_ty(TypeEnum::TFunc(signature.clone()));
     let mut store = ConcreteTypeStore::new();
@@ -301,7 +281,7 @@ fn test_simple_call() {
     let resolver = Resolver {
         id_to_type: HashMap::new(),
         id_to_def: RwLock::new(HashMap::new()),
-        class_names: HashMap::default(),
+        class_names: Default::default(),
     };
     resolver.add_id_def("foo".into(), DefinitionId(foo_id));
     let resolver = Arc::new(resolver) as Arc<dyn SymbolResolver + Send + Sync>;
@@ -322,13 +302,12 @@ fn test_simple_call() {
     };
     let mut virtual_checks = Vec::new();
     let mut calls = HashMap::new();
-    let mut identifiers: HashMap<_, _> =
+    let mut identifiers: HashSet<_> = ["a".into(), "foo".into()].iter().cloned().collect();
-        ["a".into(), "foo".into()].map(|id| (id, IdentifierInfo::default())).into();
     let mut inferencer = Inferencer {
         top_level: &top_level,
         function_data: &mut function_data,
         unifier: &mut unifier,
-        variable_mapping: HashMap::default(),
+        variable_mapping: Default::default(),
         primitives: &primitives,
         virtual_checks: &mut virtual_checks,
         calls: &mut calls,
@@ -357,11 +336,11 @@ fn test_simple_call() {
         &mut *top_level.definitions.read()[foo_id].write()
     {
         instance_to_stmt.insert(
-            String::new(),
+            "".to_string(),
             FunInstance {
                 body: Arc::new(statements_2),
                 calls: Arc::new(inferencer.calls.clone()),
-                subst: IndexMap::default(),
+                subst: Default::default(),
                 unifier_id: 0,
             },
         );
@@ -377,7 +356,7 @@ fn test_simple_call() {
     });
 
     let task = CodeGenTask {
-        subst: Vec::default(),
+        subst: Default::default(),
         symbol_name: "testing".to_string(),
         body: Arc::new(statements_1),
         calls: Arc::new(calls1),
@@ -391,8 +370,6 @@ fn test_simple_call() {
         let expected = indoc! {"
             ; ModuleID = 'test'
             source_filename = \"test\"
-            target datalayout = \"e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128\"
-            target triple = \"x86_64-unknown-linux-gnu\"
 
             ; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
             define i32 @testing(i32 %0) local_unnamed_addr #0 !dbg !5 {
@@ -438,39 +415,12 @@ fn test_simple_call() {
         opt_level: OptimizationLevel::Default,
         target: CodeGenTargetMachineOptions::from_host_triple(),
     };
-    let (registry, handles) = WorkerRegistry::create_workers(threads, top_level, &llvm_options, &f);
+    let (registry, handles) = WorkerRegistry::create_workers(
+        threads,
+        top_level,
+        &llvm_options,
+        &f
+    );
     registry.add_task(task);
     registry.wait_tasks_complete(handles);
 }
-
-#[test]
-fn test_classes_list_type_new() {
-    let ctx = inkwell::context::Context::create();
-    let generator = DefaultCodeGenerator::new(String::new(), 64);
-
-    let llvm_i32 = ctx.i32_type();
-    let llvm_usize = generator.get_size_type(&ctx);
-
-    let llvm_list = ListType::new(&generator, &ctx, llvm_i32.into());
-    assert!(ListType::is_representable(llvm_list.as_base_type(), llvm_usize).is_ok());
-}
-
-#[test]
-fn test_classes_range_type_new() {
-    let ctx = inkwell::context::Context::create();
-
-    let llvm_range = RangeType::new(&ctx);
-    assert!(RangeType::is_representable(llvm_range.as_base_type()).is_ok());
-}
-
-#[test]
-fn test_classes_ndarray_type_new() {
-    let ctx = inkwell::context::Context::create();
-    let generator = DefaultCodeGenerator::new(String::new(), 64);
-
-    let llvm_i32 = ctx.i32_type();
-    let llvm_usize = generator.get_size_type(&ctx);
-
-    let llvm_ndarray = NDArrayType::new(&generator, &ctx, llvm_i32.into());
-    assert!(NDArrayType::is_representable(llvm_ndarray.as_base_type(), llvm_usize).is_ok());
-}

nac3core/src/codegen/types/list.rs

@@ -1,192 +0,0 @@
-use inkwell::{
-    context::Context,
-    types::{AnyTypeEnum, BasicType, BasicTypeEnum, IntType, PointerType},
-    values::IntValue,
-    AddressSpace,
-};
-
-use super::ProxyType;
-use crate::codegen::{
-    values::{ArraySliceValue, ListValue, ProxyValue},
-    CodeGenContext, CodeGenerator,
-};
-
-/// Proxy type for a `list` type in LLVM.
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub struct ListType<'ctx> {
-    ty: PointerType<'ctx>,
-    llvm_usize: IntType<'ctx>,
-}
-
-impl<'ctx> ListType<'ctx> {
-    /// Checks whether `llvm_ty` represents a `list` type, returning [Err] if it does not.
-    pub fn is_representable(
-        llvm_ty: PointerType<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> Result<(), String> {
-        let llvm_list_ty = llvm_ty.get_element_type();
-        let AnyTypeEnum::StructType(llvm_list_ty) = llvm_list_ty else {
-            return Err(format!("Expected struct type for `list` type, got {llvm_list_ty}"));
-        };
-        if llvm_list_ty.count_fields() != 2 {
-            return Err(format!(
-                "Expected 2 fields in `list`, got {}",
-                llvm_list_ty.count_fields()
-            ));
-        }
-
-        let list_size_ty = llvm_list_ty.get_field_type_at_index(0).unwrap();
-        let Ok(_) = PointerType::try_from(list_size_ty) else {
-            return Err(format!("Expected pointer type for `list.0`, got {list_size_ty}"));
-        };
-
-        let list_data_ty = llvm_list_ty.get_field_type_at_index(1).unwrap();
-        let Ok(list_data_ty) = IntType::try_from(list_data_ty) else {
-            return Err(format!("Expected int type for `list.1`, got {list_data_ty}"));
-        };
-        if list_data_ty.get_bit_width() != llvm_usize.get_bit_width() {
-            return Err(format!(
-                "Expected {}-bit int type for `list.1`, got {}-bit int",
-                llvm_usize.get_bit_width(),
-                list_data_ty.get_bit_width()
-            ));
-        }
-
-        Ok(())
-    }
-
-    /// Creates an LLVM type corresponding to the expected structure of a `List`.
-    #[must_use]
-    fn llvm_type(
-        ctx: &'ctx Context,
-        element_type: BasicTypeEnum<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> PointerType<'ctx> {
-        // struct List { data: T*, size: size_t }
-        let field_tys = [element_type.ptr_type(AddressSpace::default()).into(), llvm_usize.into()];
-
-        ctx.struct_type(&field_tys, false).ptr_type(AddressSpace::default())
-    }
-
-    /// Creates an instance of [`ListType`].
-    #[must_use]
-    pub fn new<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        element_type: BasicTypeEnum<'ctx>,
-    ) -> Self {
-        let llvm_usize = generator.get_size_type(ctx);
-        let llvm_list = Self::llvm_type(ctx, element_type, llvm_usize);
-
-        ListType::from_type(llvm_list, llvm_usize)
-    }
-
-    /// Creates an [`ListType`] from a [`PointerType`].
-    #[must_use]
-    pub fn from_type(ptr_ty: PointerType<'ctx>, llvm_usize: IntType<'ctx>) -> Self {
-        debug_assert!(Self::is_representable(ptr_ty, llvm_usize).is_ok());
-
-        ListType { ty: ptr_ty, llvm_usize }
-    }
-
-    /// Returns the type of the `size` field of this `list` type.
-    #[must_use]
-    pub fn size_type(&self) -> IntType<'ctx> {
-        self.as_base_type()
-            .get_element_type()
-            .into_struct_type()
-            .get_field_type_at_index(1)
-            .map(BasicTypeEnum::into_int_type)
-            .unwrap()
-    }
-
-    /// Returns the element type of this `list` type.
-    #[must_use]
-    pub fn element_type(&self) -> AnyTypeEnum<'ctx> {
-        self.as_base_type()
-            .get_element_type()
-            .into_struct_type()
-            .get_field_type_at_index(0)
-            .map(BasicTypeEnum::into_pointer_type)
-            .map(PointerType::get_element_type)
-            .unwrap()
-    }
-}
-
-impl<'ctx> ProxyType<'ctx> for ListType<'ctx> {
-    type Base = PointerType<'ctx>;
-    type Value = ListValue<'ctx>;
-
-    fn is_type<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: impl BasicType<'ctx>,
-    ) -> Result<(), String> {
-        if let BasicTypeEnum::PointerType(ty) = llvm_ty.as_basic_type_enum() {
-            <Self as ProxyType<'ctx>>::is_representable(generator, ctx, ty)
-        } else {
-            Err(format!("Expected pointer type, got {llvm_ty:?}"))
-        }
-    }
-
-    fn is_representable<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: Self::Base,
-    ) -> Result<(), String> {
-        Self::is_representable(llvm_ty, generator.get_size_type(ctx))
-    }
-
-    fn new_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        self.map_value(
-            generator
-                .gen_var_alloc(
-                    ctx,
-                    self.as_base_type().get_element_type().into_struct_type().into(),
-                    name,
-                )
-                .unwrap(),
-            name,
-        )
-    }
-
-    fn new_array_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> ArraySliceValue<'ctx> {
-        generator
-            .gen_array_var_alloc(
-                ctx,
-                self.as_base_type().get_element_type().into_struct_type().into(),
-                size,
-                name,
-            )
-            .unwrap()
-    }
-
-    fn map_value(
-        &self,
-        value: <Self::Value as ProxyValue<'ctx>>::Base,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        Self::Value::from_pointer_value(value, self.llvm_usize, name)
-    }
-
-    fn as_base_type(&self) -> Self::Base {
-        self.ty
-    }
-}
-
-impl<'ctx> From<ListType<'ctx>> for PointerType<'ctx> {
-    fn from(value: ListType<'ctx>) -> Self {
-        value.as_base_type()
-    }
-}

nac3core/src/codegen/types/mod.rs

@@ -1,64 +0,0 @@
-use inkwell::{context::Context, types::BasicType, values::IntValue};
-
-use super::{
-    values::{ArraySliceValue, ProxyValue},
-    {CodeGenContext, CodeGenerator},
-};
-pub use list::*;
-pub use ndarray::*;
-pub use range::*;
-
-mod list;
-mod ndarray;
-mod range;
-pub mod structure;
-
-/// A LLVM type that is used to represent a corresponding type in NAC3.
-pub trait ProxyType<'ctx>: Into<Self::Base> {
-    /// The LLVM type of which values of this type possess. This is usually a
-    /// [LLVM pointer type][PointerType] for any non-primitive types.
-    type Base: BasicType<'ctx>;
-
-    /// The type of values represented by this type.
-    type Value: ProxyValue<'ctx, Type = Self>;
-
-    fn is_type<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: impl BasicType<'ctx>,
-    ) -> Result<(), String>;
-
-    /// Checks whether `llvm_ty` can be represented by this [`ProxyType`].
-    fn is_representable<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: Self::Base,
-    ) -> Result<(), String>;
-
-    /// Creates a new value of this type.
-    fn new_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        name: Option<&'ctx str>,
-    ) -> Self::Value;
-
-    /// Creates a new array value of this type.
-    fn new_array_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> ArraySliceValue<'ctx>;
-
-    /// Converts an existing value into a [`ProxyValue`] of this type.
-    fn map_value(
-        &self,
-        value: <Self::Value as ProxyValue<'ctx>>::Base,
-        name: Option<&'ctx str>,
-    ) -> Self::Value;
-
-    /// Returns the [base type][Self::Base] of this proxy.
-    fn as_base_type(&self) -> Self::Base;
-}

nac3core/src/codegen/types/ndarray.rs

@@ -1,258 +0,0 @@
-use inkwell::{
-    context::Context,
-    types::{AnyTypeEnum, BasicType, BasicTypeEnum, IntType, PointerType},
-    values::{IntValue, PointerValue},
-    AddressSpace,
-};
-use itertools::Itertools;
-
-use nac3core_derive::StructFields;
-
-use super::{
-    structure::{StructField, StructFields},
-    ProxyType,
-};
-use crate::codegen::{
-    values::{ArraySliceValue, NDArrayValue, ProxyValue},
-    {CodeGenContext, CodeGenerator},
-};
-
-/// Proxy type for a `ndarray` type in LLVM.
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub struct NDArrayType<'ctx> {
-    ty: PointerType<'ctx>,
-    dtype: BasicTypeEnum<'ctx>,
-    llvm_usize: IntType<'ctx>,
-}
-
-#[derive(PartialEq, Eq, Clone, Copy, StructFields)]
-pub struct NDArrayStructFields<'ctx> {
-    #[value_type(usize)]
-    pub ndims: StructField<'ctx, IntValue<'ctx>>,
-    #[value_type(usize.ptr_type(AddressSpace::default()))]
-    pub shape: StructField<'ctx, PointerValue<'ctx>>,
-    #[value_type(i8_type().ptr_type(AddressSpace::default()))]
-    pub data: StructField<'ctx, PointerValue<'ctx>>,
-}
-
-impl<'ctx> NDArrayType<'ctx> {
-    /// Checks whether `llvm_ty` represents a `ndarray` type, returning [Err] if it does not.
-    pub fn is_representable(
-        llvm_ty: PointerType<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> Result<(), String> {
-        let llvm_ndarray_ty = llvm_ty.get_element_type();
-        let AnyTypeEnum::StructType(llvm_ndarray_ty) = llvm_ndarray_ty else {
-            return Err(format!("Expected struct type for `NDArray` type, got {llvm_ndarray_ty}"));
-        };
-        if llvm_ndarray_ty.count_fields() != 3 {
-            return Err(format!(
-                "Expected 3 fields in `NDArray`, got {}",
-                llvm_ndarray_ty.count_fields()
-            ));
-        }
-
-        let ndarray_ndims_ty = llvm_ndarray_ty.get_field_type_at_index(0).unwrap();
-        let Ok(ndarray_ndims_ty) = IntType::try_from(ndarray_ndims_ty) else {
-            return Err(format!("Expected int type for `ndarray.0`, got {ndarray_ndims_ty}"));
-        };
-        if ndarray_ndims_ty.get_bit_width() != llvm_usize.get_bit_width() {
-            return Err(format!(
-                "Expected {}-bit int type for `ndarray.0`, got {}-bit int",
-                llvm_usize.get_bit_width(),
-                ndarray_ndims_ty.get_bit_width()
-            ));
-        }
-
-        let ndarray_dims_ty = llvm_ndarray_ty.get_field_type_at_index(1).unwrap();
-        let Ok(ndarray_pdims) = PointerType::try_from(ndarray_dims_ty) else {
-            return Err(format!("Expected pointer type for `ndarray.1`, got {ndarray_dims_ty}"));
-        };
-        let ndarray_dims = ndarray_pdims.get_element_type();
-        let Ok(ndarray_dims) = IntType::try_from(ndarray_dims) else {
-            return Err(format!(
-                "Expected pointer-to-int type for `ndarray.1`, got pointer-to-{ndarray_dims}"
-            ));
-        };
-        if ndarray_dims.get_bit_width() != llvm_usize.get_bit_width() {
-            return Err(format!(
-                "Expected pointer-to-{}-bit int type for `ndarray.1`, got pointer-to-{}-bit int",
-                llvm_usize.get_bit_width(),
-                ndarray_dims.get_bit_width()
-            ));
-        }
-
-        let ndarray_data_ty = llvm_ndarray_ty.get_field_type_at_index(2).unwrap();
-        let Ok(ndarray_pdata) = PointerType::try_from(ndarray_data_ty) else {
-            return Err(format!("Expected pointer type for `ndarray.2`, got {ndarray_data_ty}"));
-        };
-        let ndarray_data = ndarray_pdata.get_element_type();
-        let Ok(ndarray_data) = IntType::try_from(ndarray_data) else {
-            return Err(format!(
-                "Expected pointer-to-int type for `ndarray.2`, got pointer-to-{ndarray_data}"
-            ));
-        };
-        if ndarray_data.get_bit_width() != 8 {
-            return Err(format!(
-                "Expected pointer-to-8-bit int type for `ndarray.1`, got pointer-to-{}-bit int",
-                ndarray_data.get_bit_width()
-            ));
-        }
-
-        Ok(())
-    }
-
-    // TODO: Move this into e.g. StructProxyType
-    #[must_use]
-    fn fields(ctx: &'ctx Context, llvm_usize: IntType<'ctx>) -> NDArrayStructFields<'ctx> {
-        NDArrayStructFields::new(ctx, llvm_usize)
-    }
-
-    // TODO: Move this into e.g. StructProxyType
-    #[must_use]
-    pub fn get_fields(
-        &self,
-        ctx: &'ctx Context,
-        llvm_usize: IntType<'ctx>,
-    ) -> NDArrayStructFields<'ctx> {
-        Self::fields(ctx, llvm_usize)
-    }
-
-    /// Creates an LLVM type corresponding to the expected structure of an `NDArray`.
-    #[must_use]
-    fn llvm_type(ctx: &'ctx Context, llvm_usize: IntType<'ctx>) -> PointerType<'ctx> {
-        // struct NDArray { num_dims: size_t, dims: size_t*, data: i8* }
-        //
-        // * data    : Pointer to an array containing the array data
-        // * itemsize: The size of each NDArray elements in bytes
-        // * ndims   : Number of dimensions in the array
-        // * shape   : Pointer to an array containing the shape of the NDArray
-        // * strides : Pointer to an array indicating the number of bytes between each element at a dimension
-        let field_tys =
-            Self::fields(ctx, llvm_usize).into_iter().map(|field| field.1).collect_vec();
-
-        ctx.struct_type(&field_tys, false).ptr_type(AddressSpace::default())
-    }
-
-    /// Creates an instance of [`NDArrayType`].
-    #[must_use]
-    pub fn new<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        dtype: BasicTypeEnum<'ctx>,
-    ) -> Self {
-        let llvm_usize = generator.get_size_type(ctx);
-        let llvm_ndarray = Self::llvm_type(ctx, llvm_usize);
-
-        NDArrayType { ty: llvm_ndarray, dtype, llvm_usize }
-    }
-
-    /// Creates an [`NDArrayType`] from a [`PointerType`] representing an `NDArray`.
-    #[must_use]
-    pub fn from_type(
-        ptr_ty: PointerType<'ctx>,
-        dtype: BasicTypeEnum<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> Self {
-        debug_assert!(Self::is_representable(ptr_ty, llvm_usize).is_ok());
-
-        NDArrayType { ty: ptr_ty, dtype, llvm_usize }
-    }
-
-    /// Returns the type of the `size` field of this `ndarray` type.
-    #[must_use]
-    pub fn size_type(&self) -> IntType<'ctx> {
-        self.as_base_type()
-            .get_element_type()
-            .into_struct_type()
-            .get_field_type_at_index(0)
-            .map(BasicTypeEnum::into_int_type)
-            .unwrap()
-    }
-
-    /// Returns the element type of this `ndarray` type.
-    #[must_use]
-    pub fn element_type(&self) -> BasicTypeEnum<'ctx> {
-        self.dtype
-    }
-}
-
-impl<'ctx> ProxyType<'ctx> for NDArrayType<'ctx> {
-    type Base = PointerType<'ctx>;
-    type Value = NDArrayValue<'ctx>;
-
-    fn is_type<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: impl BasicType<'ctx>,
-    ) -> Result<(), String> {
-        if let BasicTypeEnum::PointerType(ty) = llvm_ty.as_basic_type_enum() {
-            <Self as ProxyType<'ctx>>::is_representable(generator, ctx, ty)
-        } else {
-            Err(format!("Expected pointer type, got {llvm_ty:?}"))
-        }
-    }
-
-    fn is_representable<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: Self::Base,
-    ) -> Result<(), String> {
-        Self::is_representable(llvm_ty, generator.get_size_type(ctx))
-    }
-
-    fn new_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        self.map_value(
-            generator
-                .gen_var_alloc(
-                    ctx,
-                    self.as_base_type().get_element_type().into_struct_type().into(),
-                    name,
-                )
-                .unwrap(),
-            name,
-        )
-    }
-
-    fn new_array_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> ArraySliceValue<'ctx> {
-        generator
-            .gen_array_var_alloc(
-                ctx,
-                self.as_base_type().get_element_type().into_struct_type().into(),
-                size,
-                name,
-            )
-            .unwrap()
-    }
-
-    fn map_value(
-        &self,
-        value: <Self::Value as ProxyValue<'ctx>>::Base,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        debug_assert_eq!(value.get_type(), self.as_base_type());
-
-        NDArrayValue::from_pointer_value(value, self.dtype, self.llvm_usize, name)
-    }
-
-    fn as_base_type(&self) -> Self::Base {
-        self.ty
-    }
-}
-
-impl<'ctx> From<NDArrayType<'ctx>> for PointerType<'ctx> {
-    fn from(value: NDArrayType<'ctx>) -> Self {
-        value.as_base_type()
-    }
-}

nac3core/src/codegen/types/range.rs

@@ -1,159 +0,0 @@
-use inkwell::{
-    context::Context,
-    types::{AnyTypeEnum, BasicType, BasicTypeEnum, IntType, PointerType},
-    values::IntValue,
-    AddressSpace,
-};
-
-use super::ProxyType;
-use crate::codegen::{
-    values::{ArraySliceValue, ProxyValue, RangeValue},
-    {CodeGenContext, CodeGenerator},
-};
-
-/// Proxy type for a `range` type in LLVM.
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub struct RangeType<'ctx> {
-    ty: PointerType<'ctx>,
-}
-
-impl<'ctx> RangeType<'ctx> {
-    /// Checks whether `llvm_ty` represents a `range` type, returning [Err] if it does not.
-    pub fn is_representable(llvm_ty: PointerType<'ctx>) -> Result<(), String> {
-        let llvm_range_ty = llvm_ty.get_element_type();
-        let AnyTypeEnum::ArrayType(llvm_range_ty) = llvm_range_ty else {
-            return Err(format!("Expected array type for `range` type, got {llvm_range_ty}"));
-        };
-        if llvm_range_ty.len() != 3 {
-            return Err(format!(
-                "Expected 3 elements for `range` type, got {}",
-                llvm_range_ty.len()
-            ));
-        }
-
-        let llvm_range_elem_ty = llvm_range_ty.get_element_type();
-        let Ok(llvm_range_elem_ty) = IntType::try_from(llvm_range_elem_ty) else {
-            return Err(format!(
-                "Expected int type for `range` element type, got {llvm_range_elem_ty}"
-            ));
-        };
-        if llvm_range_elem_ty.get_bit_width() != 32 {
-            return Err(format!(
-                "Expected 32-bit int type for `range` element type, got {}",
-                llvm_range_elem_ty.get_bit_width()
-            ));
-        }
-
-        Ok(())
-    }
-
-    /// Creates an LLVM type corresponding to the expected structure of a `Range`.
-    #[must_use]
-    fn llvm_type(ctx: &'ctx Context) -> PointerType<'ctx> {
-        // typedef int32_t Range[3];
-        let llvm_i32 = ctx.i32_type();
-        llvm_i32.array_type(3).ptr_type(AddressSpace::default())
-    }
-
-    /// Creates an instance of [`RangeType`].
-    #[must_use]
-    pub fn new(ctx: &'ctx Context) -> Self {
-        let llvm_range = Self::llvm_type(ctx);
-
-        RangeType::from_type(llvm_range)
-    }
-
-    /// Creates an [`RangeType`] from a [`PointerType`].
-    #[must_use]
-    pub fn from_type(ptr_ty: PointerType<'ctx>) -> Self {
-        debug_assert!(Self::is_representable(ptr_ty).is_ok());
-
-        RangeType { ty: ptr_ty }
-    }
-
-    /// Returns the type of all fields of this `range` type.
-    #[must_use]
-    pub fn value_type(&self) -> IntType<'ctx> {
-        self.as_base_type().get_element_type().into_array_type().get_element_type().into_int_type()
-    }
-}
-
-impl<'ctx> ProxyType<'ctx> for RangeType<'ctx> {
-    type Base = PointerType<'ctx>;
-    type Value = RangeValue<'ctx>;
-
-    fn is_type<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        llvm_ty: impl BasicType<'ctx>,
-    ) -> Result<(), String> {
-        if let BasicTypeEnum::PointerType(ty) = llvm_ty.as_basic_type_enum() {
-            <Self as ProxyType<'ctx>>::is_representable(generator, ctx, ty)
-        } else {
-            Err(format!("Expected pointer type, got {llvm_ty:?}"))
-        }
-    }
-
-    fn is_representable<G: CodeGenerator + ?Sized>(
-        _: &G,
-        _: &'ctx Context,
-        llvm_ty: Self::Base,
-    ) -> Result<(), String> {
-        Self::is_representable(llvm_ty)
-    }
-
-    fn new_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        self.map_value(
-            generator
-                .gen_var_alloc(
-                    ctx,
-                    self.as_base_type().get_element_type().into_struct_type().into(),
-                    name,
-                )
-                .unwrap(),
-            name,
-        )
-    }
-
-    fn new_array_value<G: CodeGenerator + ?Sized>(
-        &self,
-        generator: &mut G,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> ArraySliceValue<'ctx> {
-        generator
-            .gen_array_var_alloc(
-                ctx,
-                self.as_base_type().get_element_type().into_struct_type().into(),
-                size,
-                name,
-            )
-            .unwrap()
-    }
-
-    fn map_value(
-        &self,
-        value: <Self::Value as ProxyValue<'ctx>>::Base,
-        name: Option<&'ctx str>,
-    ) -> Self::Value {
-        debug_assert_eq!(value.get_type(), self.as_base_type());
-
-        RangeValue::from_pointer_value(value, name)
-    }
-
-    fn as_base_type(&self) -> Self::Base {
-        self.ty
-    }
-}
-
-impl<'ctx> From<RangeType<'ctx>> for PointerType<'ctx> {
-    fn from(value: RangeType<'ctx>) -> Self {
-        value.as_base_type()
-    }
-}

nac3core/src/codegen/types/structure.rs

@@ -1,203 +0,0 @@
-use std::marker::PhantomData;
-
-use inkwell::{
-    context::AsContextRef,
-    types::{BasicTypeEnum, IntType},
-    values::{BasicValue, BasicValueEnum, IntValue, PointerValue, StructValue},
-};
-
-use crate::codegen::CodeGenContext;
-
-/// Trait indicating that the structure is a field-wise representation of an LLVM structure.
-///
-/// # Usage
-///
-/// For example, for a simple C-slice LLVM structure:
-///
-/// ```ignore
-/// struct CSliceFields<'ctx> {
-///     ptr: StructField<'ctx, PointerValue<'ctx>>,
-///     len: StructField<'ctx, IntValue<'ctx>>
-/// }
-/// ```
-pub trait StructFields<'ctx>: Eq + Copy {
-    /// Creates an instance of [`StructFields`] using the given `ctx` and `size_t` types.
-    fn new(ctx: impl AsContextRef<'ctx>, llvm_usize: IntType<'ctx>) -> Self;
-
-    /// Returns a [`Vec`] that contains the fields of the structure in the order as they appear in
-    /// the type definition.
-    #[must_use]
-    fn to_vec(&self) -> Vec<(&'static str, BasicTypeEnum<'ctx>)>;
-
-    /// Returns a [`Iterator`] that contains the fields of the structure in the order as they appear
-    /// in the type definition.
-    #[must_use]
-    fn iter(&self) -> impl Iterator<Item = (&'static str, BasicTypeEnum<'ctx>)> {
-        self.to_vec().into_iter()
-    }
-
-    /// Returns a [`Vec`] that contains the fields of the structure in the order as they appear in
-    /// the type definition.
-    #[must_use]
-    fn into_vec(self) -> Vec<(&'static str, BasicTypeEnum<'ctx>)>
-    where
-        Self: Sized,
-    {
-        self.to_vec()
-    }
-
-    /// Returns a [`Iterator`] that contains the fields of the structure in the order as they appear
-    /// in the type definition.
-    #[must_use]
-    fn into_iter(self) -> impl Iterator<Item = (&'static str, BasicTypeEnum<'ctx>)>
-    where
-        Self: Sized,
-    {
-        self.into_vec().into_iter()
-    }
-}
-
-/// A single field of an LLVM structure.
-#[derive(Debug, PartialEq, Eq, Clone, Copy)]
-pub struct StructField<'ctx, Value>
-where
-    Value: BasicValue<'ctx> + TryFrom<BasicValueEnum<'ctx>, Error = ()>,
-{
-    /// The index of this field within the structure.
-    index: u32,
-
-    /// The name of this field.
-    name: &'static str,
-
-    /// The type of this field.
-    ty: BasicTypeEnum<'ctx>,
-
-    /// Instance of [`PhantomData`] containing [`Value`], used to implement automatic downcasts.
-    _value_ty: PhantomData<Value>,
-}
-
-impl<'ctx, Value> StructField<'ctx, Value>
-where
-    Value: BasicValue<'ctx> + TryFrom<BasicValueEnum<'ctx>, Error = ()>,
-{
-    /// Creates an instance of [`StructField`].
-    ///
-    /// * `idx_counter` - The instance of [`FieldIndexCounter`] used to track the current field
-    ///   index.
-    /// * `name` - Name of the field.
-    /// * `ty` - The type of this field.
-    pub fn create(
-        idx_counter: &mut FieldIndexCounter,
-        name: &'static str,
-        ty: impl Into<BasicTypeEnum<'ctx>>,
-    ) -> Self {
-        StructField { index: idx_counter.increment(), name, ty: ty.into(), _value_ty: PhantomData }
-    }
-
-    /// Creates an instance of [`StructField`] with a given index.
-    ///
-    /// * `index` - The index of this field within its enclosing structure.
-    /// * `name` - Name of the field.
-    /// * `ty` - The type of this field.
-    pub fn create_at(index: u32, name: &'static str, ty: impl Into<BasicTypeEnum<'ctx>>) -> Self {
-        StructField { index, name, ty: ty.into(), _value_ty: PhantomData }
-    }
-
-    /// Creates a pointer to this field in an arbitrary structure by performing a `getelementptr i32
-    /// {idx...}, i32 {self.index}`.
-    pub fn ptr_by_array_gep(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        pobj: PointerValue<'ctx>,
-        idx: &[IntValue<'ctx>],
-    ) -> PointerValue<'ctx> {
-        unsafe {
-            ctx.builder.build_in_bounds_gep(
-                pobj,
-                &[idx, &[ctx.ctx.i32_type().const_int(u64::from(self.index), false)]].concat(),
-                "",
-            )
-        }
-        .unwrap()
-    }
-
-    /// Creates a pointer to this field in an arbitrary structure by performing the equivalent of
-    /// `getelementptr i32 0, i32 {self.index}`.
-    pub fn ptr_by_gep(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        pobj: PointerValue<'ctx>,
-        obj_name: Option<&'ctx str>,
-    ) -> PointerValue<'ctx> {
-        ctx.builder
-            .build_struct_gep(
-                pobj,
-                self.index,
-                &obj_name.map(|name| format!("{name}.{}.addr", self.name)).unwrap_or_default(),
-            )
-            .unwrap()
-    }
-
-    /// Gets the value of this field for a given `obj`.
-    #[must_use]
-    pub fn get_from_value(&self, obj: StructValue<'ctx>) -> Value {
-        obj.get_field_at_index(self.index).and_then(|value| Value::try_from(value).ok()).unwrap()
-    }
-
-    /// Sets the value of this field for a given `obj`.
-    pub fn set_from_value(&self, obj: StructValue<'ctx>, value: Value) {
-        obj.set_field_at_index(self.index, value);
-    }
-
-    /// Gets the value of this field for a pointer-to-structure.
-    pub fn get(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        pobj: PointerValue<'ctx>,
-        obj_name: Option<&'ctx str>,
-    ) -> Value {
-        ctx.builder
-            .build_load(
-                self.ptr_by_gep(ctx, pobj, obj_name),
-                &obj_name.map(|name| format!("{name}.{}", self.name)).unwrap_or_default(),
-            )
-            .map_err(|_| ())
-            .and_then(|value| Value::try_from(value))
-            .unwrap()
-    }
-
-    /// Sets the value of this field for a pointer-to-structure.
-    pub fn set(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        pobj: PointerValue<'ctx>,
-        value: Value,
-        obj_name: Option<&'ctx str>,
-    ) {
-        ctx.builder.build_store(self.ptr_by_gep(ctx, pobj, obj_name), value).unwrap();
-    }
-}
-
-impl<'ctx, Value> From<StructField<'ctx, Value>> for (&'static str, BasicTypeEnum<'ctx>)
-where
-    Value: BasicValue<'ctx> + TryFrom<BasicValueEnum<'ctx>, Error = ()>,
-{
-    fn from(value: StructField<'ctx, Value>) -> Self {
-        (value.name, value.ty)
-    }
-}
-
-/// A counter that tracks the next index of a field using a monotonically increasing counter.
-#[derive(Default, Debug, PartialEq, Eq, Clone, Copy)]
-pub struct FieldIndexCounter(u32);
-
-impl FieldIndexCounter {
-    /// Increments the number stored by this counter, returning the previous value.
-    ///
-    /// Functionally equivalent to `i++` in C-based languages.
-    pub fn increment(&mut self) -> u32 {
-        let v = self.0;
-        self.0 += 1;
-        v
-    }
-}

nac3core/src/codegen/values/array.rs

@@ -1,426 +0,0 @@
-use inkwell::{
-    types::AnyTypeEnum,
-    values::{BasicValueEnum, IntValue, PointerValue},
-    IntPredicate,
-};
-
-use crate::codegen::{CodeGenContext, CodeGenerator};
-
-/// An LLVM value that is array-like, i.e. it contains a contiguous, sequenced collection of
-/// elements.
-pub trait ArrayLikeValue<'ctx> {
-    /// Returns the element type of this array-like value.
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> AnyTypeEnum<'ctx>;
-
-    /// Returns the base pointer to the array.
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> PointerValue<'ctx>;
-
-    /// Returns the size of this array-like value.
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> IntValue<'ctx>;
-
-    /// Returns a [`ArraySliceValue`] representing this value.
-    fn as_slice_value<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> ArraySliceValue<'ctx> {
-        ArraySliceValue::from_ptr_val(
-            self.base_ptr(ctx, generator),
-            self.size(ctx, generator),
-            None,
-        )
-    }
-}
-
-/// An array-like value that can be indexed by memory offset.
-pub trait ArrayLikeIndexer<'ctx, Index = IntValue<'ctx>>: ArrayLikeValue<'ctx> {
-    /// # Safety
-    ///
-    /// This function should be called with a valid index.
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx>;
-
-    /// Returns the pointer to the data at the `idx`-th index.
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx>;
-}
-
-/// An array-like value that can have its array elements accessed as a [`BasicValueEnum`].
-pub trait UntypedArrayLikeAccessor<'ctx, Index = IntValue<'ctx>>:
-    ArrayLikeIndexer<'ctx, Index>
-{
-    /// # Safety
-    ///
-    /// This function should be called with a valid index.
-    unsafe fn get_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> BasicValueEnum<'ctx> {
-        let ptr = unsafe { self.ptr_offset_unchecked(ctx, generator, idx, name) };
-        ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
-    }
-
-    /// Returns the data at the `idx`-th index.
-    fn get<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> BasicValueEnum<'ctx> {
-        let ptr = self.ptr_offset(ctx, generator, idx, name);
-        ctx.builder.build_load(ptr, name.unwrap_or_default()).unwrap()
-    }
-}
-
-/// An array-like value that can have its array elements mutated as a [`BasicValueEnum`].
-pub trait UntypedArrayLikeMutator<'ctx, Index = IntValue<'ctx>>:
-    ArrayLikeIndexer<'ctx, Index>
-{
-    /// # Safety
-    ///
-    /// This function should be called with a valid index.
-    unsafe fn set_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        value: BasicValueEnum<'ctx>,
-    ) {
-        let ptr = unsafe { self.ptr_offset_unchecked(ctx, generator, idx, None) };
-        ctx.builder.build_store(ptr, value).unwrap();
-    }
-
-    /// Sets the data at the `idx`-th index.
-    fn set<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        value: BasicValueEnum<'ctx>,
-    ) {
-        let ptr = self.ptr_offset(ctx, generator, idx, None);
-        ctx.builder.build_store(ptr, value).unwrap();
-    }
-}
-
-/// An array-like value that can have its array elements accessed as an arbitrary type `T`.
-pub trait TypedArrayLikeAccessor<'ctx, T, Index = IntValue<'ctx>>:
-    UntypedArrayLikeAccessor<'ctx, Index>
-{
-    /// Casts an element from [`BasicValueEnum`] into `T`.
-    fn downcast_to_type(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        value: BasicValueEnum<'ctx>,
-    ) -> T;
-
-    /// # Safety
-    ///
-    /// This function should be called with a valid index.
-    unsafe fn get_typed_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> T {
-        let value = unsafe { self.get_unchecked(ctx, generator, idx, name) };
-        self.downcast_to_type(ctx, value)
-    }
-
-    /// Returns the data at the `idx`-th index.
-    fn get_typed<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> T {
-        let value = self.get(ctx, generator, idx, name);
-        self.downcast_to_type(ctx, value)
-    }
-}
-
-/// An array-like value that can have its array elements mutated as an arbitrary type `T`.
-pub trait TypedArrayLikeMutator<'ctx, T, Index = IntValue<'ctx>>:
-    UntypedArrayLikeMutator<'ctx, Index>
-{
-    /// Casts an element from T into [`BasicValueEnum`].
-    fn upcast_from_type(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        value: T,
-    ) -> BasicValueEnum<'ctx>;
-
-    /// # Safety
-    ///
-    /// This function should be called with a valid index.
-    unsafe fn set_typed_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        value: T,
-    ) {
-        let value = self.upcast_from_type(ctx, value);
-        unsafe { self.set_unchecked(ctx, generator, idx, value) }
-    }
-
-    /// Sets the data at the `idx`-th index.
-    fn set_typed<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        value: T,
-    ) {
-        let value = self.upcast_from_type(ctx, value);
-        self.set(ctx, generator, idx, value);
-    }
-}
-
-/// Type alias for a function that casts a [`BasicValueEnum`] into a `T`.
-type ValueDowncastFn<'ctx, T> =
-    Box<dyn Fn(&mut CodeGenContext<'ctx, '_>, BasicValueEnum<'ctx>) -> T>;
-/// Type alias for a function that casts a `T` into a [`BasicValueEnum`].
-type ValueUpcastFn<'ctx, T> = Box<dyn Fn(&mut CodeGenContext<'ctx, '_>, T) -> BasicValueEnum<'ctx>>;
-
-/// An adapter for constraining untyped array values as typed values.
-pub struct TypedArrayLikeAdapter<'ctx, T, Adapted: ArrayLikeValue<'ctx> = ArraySliceValue<'ctx>> {
-    adapted: Adapted,
-    downcast_fn: ValueDowncastFn<'ctx, T>,
-    upcast_fn: ValueUpcastFn<'ctx, T>,
-}
-
-impl<'ctx, T, Adapted> TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: ArrayLikeValue<'ctx>,
-{
-    /// Creates a [`TypedArrayLikeAdapter`].
-    ///
-    /// * `adapted` - The value to be adapted.
-    /// * `downcast_fn` - The function converting a [`BasicValueEnum`] into a `T`.
-    /// * `upcast_fn` - The function converting a T into a [`BasicValueEnum`].
-    pub fn from(
-        adapted: Adapted,
-        downcast_fn: ValueDowncastFn<'ctx, T>,
-        upcast_fn: ValueUpcastFn<'ctx, T>,
-    ) -> Self {
-        TypedArrayLikeAdapter { adapted, downcast_fn, upcast_fn }
-    }
-}
-
-impl<'ctx, T, Adapted> ArrayLikeValue<'ctx> for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: ArrayLikeValue<'ctx>,
-{
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> AnyTypeEnum<'ctx> {
-        self.adapted.element_type(ctx, generator)
-    }
-
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> PointerValue<'ctx> {
-        self.adapted.base_ptr(ctx, generator)
-    }
-
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> IntValue<'ctx> {
-        self.adapted.size(ctx, generator)
-    }
-}
-
-impl<'ctx, T, Index, Adapted> ArrayLikeIndexer<'ctx, Index>
-    for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: ArrayLikeIndexer<'ctx, Index>,
-{
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        unsafe { self.adapted.ptr_offset_unchecked(ctx, generator, idx, name) }
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        self.adapted.ptr_offset(ctx, generator, idx, name)
-    }
-}
-
-impl<'ctx, T, Index, Adapted> UntypedArrayLikeAccessor<'ctx, Index>
-    for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: UntypedArrayLikeAccessor<'ctx, Index>,
-{
-}
-impl<'ctx, T, Index, Adapted> UntypedArrayLikeMutator<'ctx, Index>
-    for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: UntypedArrayLikeMutator<'ctx, Index>,
-{
-}
-
-impl<'ctx, T, Index, Adapted> TypedArrayLikeAccessor<'ctx, T, Index>
-    for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: UntypedArrayLikeAccessor<'ctx, Index>,
-{
-    fn downcast_to_type(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        value: BasicValueEnum<'ctx>,
-    ) -> T {
-        (self.downcast_fn)(ctx, value)
-    }
-}
-
-impl<'ctx, T, Index, Adapted> TypedArrayLikeMutator<'ctx, T, Index>
-    for TypedArrayLikeAdapter<'ctx, T, Adapted>
-where
-    Adapted: UntypedArrayLikeMutator<'ctx, Index>,
-{
-    fn upcast_from_type(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        value: T,
-    ) -> BasicValueEnum<'ctx> {
-        (self.upcast_fn)(ctx, value)
-    }
-}
-
-/// An LLVM value representing an array slice, consisting of a pointer to the data and the size of
-/// the slice.
-#[derive(Copy, Clone)]
-pub struct ArraySliceValue<'ctx>(PointerValue<'ctx>, IntValue<'ctx>, Option<&'ctx str>);
-
-impl<'ctx> ArraySliceValue<'ctx> {
-    /// Creates an [`ArraySliceValue`] from a [`PointerValue`] and its size.
-    #[must_use]
-    pub fn from_ptr_val(
-        ptr: PointerValue<'ctx>,
-        size: IntValue<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> Self {
-        ArraySliceValue(ptr, size, name)
-    }
-}
-
-impl<'ctx> From<ArraySliceValue<'ctx>> for PointerValue<'ctx> {
-    fn from(value: ArraySliceValue<'ctx>) -> Self {
-        value.0
-    }
-}
-
-impl<'ctx> ArrayLikeValue<'ctx> for ArraySliceValue<'ctx> {
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        _: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> AnyTypeEnum<'ctx> {
-        self.0.get_type().get_element_type()
-    }
-
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        _: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> PointerValue<'ctx> {
-        self.0
-    }
-
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        _: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> IntValue<'ctx> {
-        self.1
-    }
-}
-
-impl<'ctx> ArrayLikeIndexer<'ctx> for ArraySliceValue<'ctx> {
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let var_name = name.map(|v| format!("{v}.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(self.base_ptr(ctx, generator), &[*idx], var_name.as_str())
-                .unwrap()
-        }
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        debug_assert_eq!(idx.get_type(), generator.get_size_type(ctx.ctx));
-
-        let size = self.size(ctx, generator);
-        let in_range = ctx.builder.build_int_compare(IntPredicate::ULT, *idx, size, "").unwrap();
-        ctx.make_assert(
-            generator,
-            in_range,
-            "0:IndexError",
-            "list index out of range",
-            [None, None, None],
-            ctx.current_loc,
-        );
-
-        unsafe { self.ptr_offset_unchecked(ctx, generator, idx, name) }
-    }
-}
-
-impl<'ctx> UntypedArrayLikeAccessor<'ctx> for ArraySliceValue<'ctx> {}
-impl<'ctx> UntypedArrayLikeMutator<'ctx> for ArraySliceValue<'ctx> {}

nac3core/src/codegen/values/list.rs

@@ -1,241 +0,0 @@
-use inkwell::{
-    types::{AnyTypeEnum, BasicType, BasicTypeEnum, IntType},
-    values::{BasicValueEnum, IntValue, PointerValue},
-    AddressSpace, IntPredicate,
-};
-
-use super::{
-    ArrayLikeIndexer, ArrayLikeValue, ProxyValue, UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
-};
-use crate::codegen::{
-    types::ListType,
-    {CodeGenContext, CodeGenerator},
-};
-
-/// Proxy type for accessing a `list` value in LLVM.
-#[derive(Copy, Clone)]
-pub struct ListValue<'ctx> {
-    value: PointerValue<'ctx>,
-    llvm_usize: IntType<'ctx>,
-    name: Option<&'ctx str>,
-}
-
-impl<'ctx> ListValue<'ctx> {
-    /// Checks whether `value` is an instance of `list`, returning [Err] if `value` is not an
-    /// instance.
-    pub fn is_representable(
-        value: PointerValue<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> Result<(), String> {
-        ListType::is_representable(value.get_type(), llvm_usize)
-    }
-
-    /// Creates an [`ListValue`] from a [`PointerValue`].
-    #[must_use]
-    pub fn from_pointer_value(
-        ptr: PointerValue<'ctx>,
-        llvm_usize: IntType<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> Self {
-        debug_assert!(Self::is_representable(ptr, llvm_usize).is_ok());
-
-        ListValue { value: ptr, llvm_usize, name }
-    }
-
-    /// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
-    /// on the field.
-    fn pptr_to_data(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        let llvm_i32 = ctx.ctx.i32_type();
-        let var_name = self.name.map(|v| format!("{v}.data.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.as_base_value(),
-                    &[llvm_i32.const_zero(), llvm_i32.const_zero()],
-                    var_name.as_str(),
-                )
-                .unwrap()
-        }
-    }
-
-    /// Returns the pointer to the field storing the size of this `list`.
-    fn ptr_to_size(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        let llvm_i32 = ctx.ctx.i32_type();
-        let var_name = self.name.map(|v| format!("{v}.size.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.as_base_value(),
-                    &[llvm_i32.const_zero(), llvm_i32.const_int(1, true)],
-                    var_name.as_str(),
-                )
-                .unwrap()
-        }
-    }
-
-    /// Stores the array of data elements `data` into this instance.
-    fn store_data(&self, ctx: &CodeGenContext<'ctx, '_>, data: PointerValue<'ctx>) {
-        ctx.builder.build_store(self.pptr_to_data(ctx), data).unwrap();
-    }
-
-    /// Convenience method for creating a new array storing data elements with the given element
-    /// type `elem_ty` and `size`.
-    ///
-    /// If `size` is [None], the size stored in the field of this instance is used instead.
-    pub fn create_data(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        elem_ty: BasicTypeEnum<'ctx>,
-        size: Option<IntValue<'ctx>>,
-    ) {
-        let size = size.unwrap_or_else(|| self.load_size(ctx, None));
-
-        let data = ctx
-            .builder
-            .build_select(
-                ctx.builder
-                    .build_int_compare(IntPredicate::NE, size, self.llvm_usize.const_zero(), "")
-                    .unwrap(),
-                ctx.builder.build_array_alloca(elem_ty, size, "").unwrap(),
-                elem_ty.ptr_type(AddressSpace::default()).const_zero(),
-                "",
-            )
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap();
-        self.store_data(ctx, data);
-    }
-
-    /// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
-    /// on the field.
-    #[must_use]
-    pub fn data(&self) -> ListDataProxy<'ctx, '_> {
-        ListDataProxy(self)
-    }
-
-    /// Stores the `size` of this `list` into this instance.
-    pub fn store_size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-        size: IntValue<'ctx>,
-    ) {
-        debug_assert_eq!(size.get_type(), generator.get_size_type(ctx.ctx));
-
-        let psize = self.ptr_to_size(ctx);
-        ctx.builder.build_store(psize, size).unwrap();
-    }
-
-    /// Returns the size of this `list` as a value.
-    pub fn load_size(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
-        let psize = self.ptr_to_size(ctx);
-        let var_name = name
-            .map(ToString::to_string)
-            .or_else(|| self.name.map(|v| format!("{v}.size")))
-            .unwrap_or_default();
-
-        ctx.builder
-            .build_load(psize, var_name.as_str())
-            .map(BasicValueEnum::into_int_value)
-            .unwrap()
-    }
-}
-
-impl<'ctx> ProxyValue<'ctx> for ListValue<'ctx> {
-    type Base = PointerValue<'ctx>;
-    type Type = ListType<'ctx>;
-
-    fn get_type(&self) -> Self::Type {
-        ListType::from_type(self.as_base_value().get_type(), self.llvm_usize)
-    }
-
-    fn as_base_value(&self) -> Self::Base {
-        self.value
-    }
-}
-
-impl<'ctx> From<ListValue<'ctx>> for PointerValue<'ctx> {
-    fn from(value: ListValue<'ctx>) -> Self {
-        value.as_base_value()
-    }
-}
-
-/// Proxy type for accessing the `data` array of an `list` instance in LLVM.
-#[derive(Copy, Clone)]
-pub struct ListDataProxy<'ctx, 'a>(&'a ListValue<'ctx>);
-
-impl<'ctx> ArrayLikeValue<'ctx> for ListDataProxy<'ctx, '_> {
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        _: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> AnyTypeEnum<'ctx> {
-        self.0.value.get_type().get_element_type()
-    }
-
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> PointerValue<'ctx> {
-        let var_name = self.0.name.map(|v| format!("{v}.data")).unwrap_or_default();
-
-        ctx.builder
-            .build_load(self.0.pptr_to_data(ctx), var_name.as_str())
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap()
-    }
-
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> IntValue<'ctx> {
-        self.0.load_size(ctx, None)
-    }
-}
-
-impl<'ctx> ArrayLikeIndexer<'ctx> for ListDataProxy<'ctx, '_> {
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let var_name = name.map(|v| format!("{v}.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(self.base_ptr(ctx, generator), &[*idx], var_name.as_str())
-                .unwrap()
-        }
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        debug_assert_eq!(idx.get_type(), generator.get_size_type(ctx.ctx));
-
-        let size = self.size(ctx, generator);
-        let in_range = ctx.builder.build_int_compare(IntPredicate::ULT, *idx, size, "").unwrap();
-        ctx.make_assert(
-            generator,
-            in_range,
-            "0:IndexError",
-            "list index out of range",
-            [None, None, None],
-            ctx.current_loc,
-        );
-
-        unsafe { self.ptr_offset_unchecked(ctx, generator, idx, name) }
-    }
-}
-
-impl<'ctx> UntypedArrayLikeAccessor<'ctx> for ListDataProxy<'ctx, '_> {}
-impl<'ctx> UntypedArrayLikeMutator<'ctx> for ListDataProxy<'ctx, '_> {}

nac3core/src/codegen/values/mod.rs

@@ -1,47 +0,0 @@
-use inkwell::{context::Context, values::BasicValue};
-
-use super::types::ProxyType;
-use crate::codegen::CodeGenerator;
-pub use array::*;
-pub use list::*;
-pub use ndarray::*;
-pub use range::*;
-
-mod array;
-mod list;
-mod ndarray;
-mod range;
-
-/// A LLVM type that is used to represent a non-primitive value in NAC3.
-pub trait ProxyValue<'ctx>: Into<Self::Base> {
-    /// The type of LLVM values represented by this instance. This is usually the
-    /// [LLVM pointer type][PointerValue].
-    type Base: BasicValue<'ctx>;
-
-    /// The type of this value.
-    type Type: ProxyType<'ctx, Value = Self>;
-
-    /// Checks whether `value` can be represented by this [`ProxyValue`].
-    fn is_instance<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        value: impl BasicValue<'ctx>,
-    ) -> Result<(), String> {
-        Self::Type::is_type(generator, ctx, value.as_basic_value_enum().get_type())
-    }
-
-    /// Checks whether `value` can be represented by this [`ProxyValue`].
-    fn is_representable<G: CodeGenerator + ?Sized>(
-        generator: &G,
-        ctx: &'ctx Context,
-        value: Self::Base,
-    ) -> Result<(), String> {
-        Self::is_instance(generator, ctx, value.as_basic_value_enum())
-    }
-
-    /// Returns the [type][ProxyType] of this value.
-    fn get_type(&self) -> Self::Type;
-
-    /// Returns the [base value][Self::Base] of this proxy.
-    fn as_base_value(&self) -> Self::Base;
-}

nac3core/src/codegen/values/ndarray.rs

@@ -1,523 +0,0 @@
-use inkwell::{
-    types::{AnyType, AnyTypeEnum, BasicType, BasicTypeEnum, IntType},
-    values::{BasicValueEnum, IntValue, PointerValue},
-    AddressSpace, IntPredicate,
-};
-
-use super::{
-    ArrayLikeIndexer, ArrayLikeValue, ProxyValue, TypedArrayLikeAccessor, TypedArrayLikeMutator,
-    UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
-};
-use crate::codegen::{
-    irrt::{call_ndarray_calc_size, call_ndarray_flatten_index},
-    llvm_intrinsics::call_int_umin,
-    stmt::gen_for_callback_incrementing,
-    types::NDArrayType,
-    CodeGenContext, CodeGenerator,
-};
-
-/// Proxy type for accessing an `NDArray` value in LLVM.
-#[derive(Copy, Clone)]
-pub struct NDArrayValue<'ctx> {
-    value: PointerValue<'ctx>,
-    dtype: BasicTypeEnum<'ctx>,
-    llvm_usize: IntType<'ctx>,
-    name: Option<&'ctx str>,
-}
-
-impl<'ctx> NDArrayValue<'ctx> {
-    /// Checks whether `value` is an instance of `NDArray`, returning [Err] if `value` is not an
-    /// instance.
-    pub fn is_representable(
-        value: PointerValue<'ctx>,
-        llvm_usize: IntType<'ctx>,
-    ) -> Result<(), String> {
-        NDArrayType::is_representable(value.get_type(), llvm_usize)
-    }
-
-    /// Creates an [`NDArrayValue`] from a [`PointerValue`].
-    #[must_use]
-    pub fn from_pointer_value(
-        ptr: PointerValue<'ctx>,
-        dtype: BasicTypeEnum<'ctx>,
-        llvm_usize: IntType<'ctx>,
-        name: Option<&'ctx str>,
-    ) -> Self {
-        debug_assert!(Self::is_representable(ptr, llvm_usize).is_ok());
-
-        NDArrayValue { value: ptr, dtype, llvm_usize, name }
-    }
-
-    /// Returns the pointer to the field storing the number of dimensions of this `NDArray`.
-    fn ptr_to_ndims(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        self.get_type()
-            .get_fields(ctx.ctx, self.llvm_usize)
-            .ndims
-            .ptr_by_gep(ctx, self.value, self.name)
-    }
-
-    /// Stores the number of dimensions `ndims` into this instance.
-    pub fn store_ndims<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-        ndims: IntValue<'ctx>,
-    ) {
-        debug_assert_eq!(ndims.get_type(), generator.get_size_type(ctx.ctx));
-
-        let pndims = self.ptr_to_ndims(ctx);
-        ctx.builder.build_store(pndims, ndims).unwrap();
-    }
-
-    /// Returns the number of dimensions of this `NDArray` as a value.
-    pub fn load_ndims(&self, ctx: &CodeGenContext<'ctx, '_>) -> IntValue<'ctx> {
-        let pndims = self.ptr_to_ndims(ctx);
-        ctx.builder.build_load(pndims, "").map(BasicValueEnum::into_int_value).unwrap()
-    }
-
-    /// Returns the double-indirection pointer to the `shape` array, as if by calling
-    /// `getelementptr` on the field.
-    fn ptr_to_shape(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        self.get_type()
-            .get_fields(ctx.ctx, self.llvm_usize)
-            .shape
-            .ptr_by_gep(ctx, self.value, self.name)
-    }
-
-    /// Stores the array of dimension sizes `dims` into this instance.
-    fn store_shape(&self, ctx: &CodeGenContext<'ctx, '_>, dims: PointerValue<'ctx>) {
-        ctx.builder.build_store(self.ptr_to_shape(ctx), dims).unwrap();
-    }
-
-    /// Convenience method for creating a new array storing dimension sizes with the given `size`.
-    pub fn create_shape(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        llvm_usize: IntType<'ctx>,
-        size: IntValue<'ctx>,
-    ) {
-        self.store_shape(ctx, ctx.builder.build_array_alloca(llvm_usize, size, "").unwrap());
-    }
-
-    /// Returns a proxy object to the field storing the size of each dimension of this `NDArray`.
-    #[must_use]
-    pub fn shape(&self) -> NDArrayShapeProxy<'ctx, '_> {
-        NDArrayShapeProxy(self)
-    }
-
-    /// Returns the double-indirection pointer to the `data` array, as if by calling `getelementptr`
-    /// on the field.
-    pub fn ptr_to_data(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        self.get_type()
-            .get_fields(ctx.ctx, self.llvm_usize)
-            .data
-            .ptr_by_gep(ctx, self.value, self.name)
-    }
-
-    /// Stores the array of data elements `data` into this instance.
-    fn store_data(&self, ctx: &CodeGenContext<'ctx, '_>, data: PointerValue<'ctx>) {
-        let data = ctx
-            .builder
-            .build_bit_cast(data, ctx.ctx.i8_type().ptr_type(AddressSpace::default()), "")
-            .unwrap();
-        ctx.builder.build_store(self.ptr_to_data(ctx), data).unwrap();
-    }
-
-    /// Convenience method for creating a new array storing data elements with the given element
-    /// type `elem_ty` and `size`.
-    pub fn create_data(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        elem_ty: BasicTypeEnum<'ctx>,
-        size: IntValue<'ctx>,
-    ) {
-        let itemsize =
-            ctx.builder.build_int_cast(elem_ty.size_of().unwrap(), size.get_type(), "").unwrap();
-        let nbytes = ctx.builder.build_int_mul(size, itemsize, "").unwrap();
-
-        // TODO: What about alignment?
-        self.store_data(
-            ctx,
-            ctx.builder.build_array_alloca(ctx.ctx.i8_type(), nbytes, "").unwrap(),
-        );
-    }
-
-    /// Returns a proxy object to the field storing the data of this `NDArray`.
-    #[must_use]
-    pub fn data(&self) -> NDArrayDataProxy<'ctx, '_> {
-        NDArrayDataProxy(self)
-    }
-}
-
-impl<'ctx> ProxyValue<'ctx> for NDArrayValue<'ctx> {
-    type Base = PointerValue<'ctx>;
-    type Type = NDArrayType<'ctx>;
-
-    fn get_type(&self) -> Self::Type {
-        NDArrayType::from_type(self.as_base_value().get_type(), self.dtype, self.llvm_usize)
-    }
-
-    fn as_base_value(&self) -> Self::Base {
-        self.value
-    }
-}
-
-impl<'ctx> From<NDArrayValue<'ctx>> for PointerValue<'ctx> {
-    fn from(value: NDArrayValue<'ctx>) -> Self {
-        value.as_base_value()
-    }
-}
-
-/// Proxy type for accessing the `dims` array of an `NDArray` instance in LLVM.
-#[derive(Copy, Clone)]
-pub struct NDArrayShapeProxy<'ctx, 'a>(&'a NDArrayValue<'ctx>);
-
-impl<'ctx> ArrayLikeValue<'ctx> for NDArrayShapeProxy<'ctx, '_> {
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> AnyTypeEnum<'ctx> {
-        self.0.shape().base_ptr(ctx, generator).get_type().get_element_type()
-    }
-
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> PointerValue<'ctx> {
-        let var_name = self.0.name.map(|v| format!("{v}.data")).unwrap_or_default();
-
-        ctx.builder
-            .build_load(self.0.ptr_to_shape(ctx), var_name.as_str())
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap()
-    }
-
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> IntValue<'ctx> {
-        self.0.load_ndims(ctx)
-    }
-}
-
-impl<'ctx> ArrayLikeIndexer<'ctx, IntValue<'ctx>> for NDArrayShapeProxy<'ctx, '_> {
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let var_name = name.map(|v| format!("{v}.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(self.base_ptr(ctx, generator), &[*idx], var_name.as_str())
-                .unwrap()
-        }
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let size = self.size(ctx, generator);
-        let in_range = ctx.builder.build_int_compare(IntPredicate::ULT, *idx, size, "").unwrap();
-        ctx.make_assert(
-            generator,
-            in_range,
-            "0:IndexError",
-            "index {0} is out of bounds for axis 0 with size {1}",
-            [Some(*idx), Some(self.0.load_ndims(ctx)), None],
-            ctx.current_loc,
-        );
-
-        unsafe { self.ptr_offset_unchecked(ctx, generator, idx, name) }
-    }
-}
-
-impl<'ctx> UntypedArrayLikeAccessor<'ctx, IntValue<'ctx>> for NDArrayShapeProxy<'ctx, '_> {}
-impl<'ctx> UntypedArrayLikeMutator<'ctx, IntValue<'ctx>> for NDArrayShapeProxy<'ctx, '_> {}
-
-impl<'ctx> TypedArrayLikeAccessor<'ctx, IntValue<'ctx>> for NDArrayShapeProxy<'ctx, '_> {
-    fn downcast_to_type(
-        &self,
-        _: &mut CodeGenContext<'ctx, '_>,
-        value: BasicValueEnum<'ctx>,
-    ) -> IntValue<'ctx> {
-        value.into_int_value()
-    }
-}
-
-impl<'ctx> TypedArrayLikeMutator<'ctx, IntValue<'ctx>> for NDArrayShapeProxy<'ctx, '_> {
-    fn upcast_from_type(
-        &self,
-        _: &mut CodeGenContext<'ctx, '_>,
-        value: IntValue<'ctx>,
-    ) -> BasicValueEnum<'ctx> {
-        value.into()
-    }
-}
-
-/// Proxy type for accessing the `data` array of an `NDArray` instance in LLVM.
-#[derive(Copy, Clone)]
-pub struct NDArrayDataProxy<'ctx, 'a>(&'a NDArrayValue<'ctx>);
-
-impl<'ctx> ArrayLikeValue<'ctx> for NDArrayDataProxy<'ctx, '_> {
-    fn element_type<G: CodeGenerator + ?Sized>(
-        &self,
-        _: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> AnyTypeEnum<'ctx> {
-        self.0.dtype.as_any_type_enum()
-    }
-
-    fn base_ptr<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        _: &G,
-    ) -> PointerValue<'ctx> {
-        let var_name = self.0.name.map(|v| format!("{v}.data")).unwrap_or_default();
-
-        ctx.builder
-            .build_load(self.0.ptr_to_data(ctx), var_name.as_str())
-            .map(BasicValueEnum::into_pointer_value)
-            .unwrap()
-    }
-
-    fn size<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &CodeGenContext<'ctx, '_>,
-        generator: &G,
-    ) -> IntValue<'ctx> {
-        call_ndarray_calc_size(generator, ctx, &self.as_slice_value(ctx, generator), (None, None))
-    }
-}
-
-impl<'ctx> ArrayLikeIndexer<'ctx> for NDArrayDataProxy<'ctx, '_> {
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let sizeof_elem = ctx
-            .builder
-            .build_int_truncate_or_bit_cast(
-                self.element_type(ctx, generator).size_of().unwrap(),
-                idx.get_type(),
-                "",
-            )
-            .unwrap();
-        let idx = ctx.builder.build_int_mul(*idx, sizeof_elem, "").unwrap();
-        let ptr = unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.base_ptr(ctx, generator),
-                    &[idx],
-                    name.unwrap_or_default(),
-                )
-                .unwrap()
-        };
-
-        // Current implementation is transparent - The returned pointer type is
-        // already cast into the expected type, allowing for immediately
-        // load/store.
-        ctx.builder
-            .build_pointer_cast(
-                ptr,
-                BasicTypeEnum::try_from(self.element_type(ctx, generator))
-                    .unwrap()
-                    .ptr_type(AddressSpace::default()),
-                "",
-            )
-            .unwrap()
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        idx: &IntValue<'ctx>,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let data_sz = self.size(ctx, generator);
-        let in_range = ctx.builder.build_int_compare(IntPredicate::ULT, *idx, data_sz, "").unwrap();
-        ctx.make_assert(
-            generator,
-            in_range,
-            "0:IndexError",
-            "index {0} is out of bounds with size {1}",
-            [Some(*idx), Some(self.0.load_ndims(ctx)), None],
-            ctx.current_loc,
-        );
-
-        let ptr = unsafe { self.ptr_offset_unchecked(ctx, generator, idx, name) };
-
-        // Current implementation is transparent - The returned pointer type is
-        // already cast into the expected type, allowing for immediately
-        // load/store.
-        ctx.builder
-            .build_pointer_cast(
-                ptr,
-                BasicTypeEnum::try_from(self.element_type(ctx, generator))
-                    .unwrap()
-                    .ptr_type(AddressSpace::default()),
-                "",
-            )
-            .unwrap()
-    }
-}
-
-impl<'ctx> UntypedArrayLikeAccessor<'ctx, IntValue<'ctx>> for NDArrayDataProxy<'ctx, '_> {}
-impl<'ctx> UntypedArrayLikeMutator<'ctx, IntValue<'ctx>> for NDArrayDataProxy<'ctx, '_> {}
-
-impl<'ctx, Index: UntypedArrayLikeAccessor<'ctx>> ArrayLikeIndexer<'ctx, Index>
-    for NDArrayDataProxy<'ctx, '_>
-{
-    unsafe fn ptr_offset_unchecked<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        indices: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let llvm_usize = generator.get_size_type(ctx.ctx);
-
-        let indices_elem_ty = indices
-            .ptr_offset(ctx, generator, &llvm_usize.const_zero(), None)
-            .get_type()
-            .get_element_type();
-        let Ok(indices_elem_ty) = IntType::try_from(indices_elem_ty) else {
-            panic!("Expected list[int32] but got {indices_elem_ty}")
-        };
-        assert_eq!(
-            indices_elem_ty.get_bit_width(),
-            32,
-            "Expected list[int32] but got list[int{}]",
-            indices_elem_ty.get_bit_width()
-        );
-
-        let index = call_ndarray_flatten_index(generator, ctx, *self.0, indices);
-        let sizeof_elem = ctx
-            .builder
-            .build_int_truncate_or_bit_cast(
-                self.element_type(ctx, generator).size_of().unwrap(),
-                index.get_type(),
-                "",
-            )
-            .unwrap();
-        let index = ctx.builder.build_int_mul(index, sizeof_elem, "").unwrap();
-
-        let ptr = unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.base_ptr(ctx, generator),
-                    &[index],
-                    name.unwrap_or_default(),
-                )
-                .unwrap()
-        };
-        // TODO: Current implementation is transparent
-        ctx.builder
-            .build_pointer_cast(
-                ptr,
-                BasicTypeEnum::try_from(self.element_type(ctx, generator))
-                    .unwrap()
-                    .ptr_type(AddressSpace::default()),
-                "",
-            )
-            .unwrap()
-    }
-
-    fn ptr_offset<G: CodeGenerator + ?Sized>(
-        &self,
-        ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut G,
-        indices: &Index,
-        name: Option<&str>,
-    ) -> PointerValue<'ctx> {
-        let llvm_usize = generator.get_size_type(ctx.ctx);
-
-        let indices_size = indices.size(ctx, generator);
-        let nidx_leq_ndims = ctx
-            .builder
-            .build_int_compare(IntPredicate::SLE, indices_size, self.0.load_ndims(ctx), "")
-            .unwrap();
-        ctx.make_assert(
-            generator,
-            nidx_leq_ndims,
-            "0:IndexError",
-            "invalid index to scalar variable",
-            [None, None, None],
-            ctx.current_loc,
-        );
-
-        let indices_len = indices.size(ctx, generator);
-        let ndarray_len = self.0.load_ndims(ctx);
-        let len = call_int_umin(ctx, indices_len, ndarray_len, None);
-        gen_for_callback_incrementing(
-            generator,
-            ctx,
-            None,
-            llvm_usize.const_zero(),
-            (len, false),
-            |generator, ctx, _, i| {
-                let (dim_idx, dim_sz) = unsafe {
-                    (
-                        indices.get_unchecked(ctx, generator, &i, None).into_int_value(),
-                        self.0.shape().get_typed_unchecked(ctx, generator, &i, None),
-                    )
-                };
-                let dim_idx = ctx
-                    .builder
-                    .build_int_z_extend_or_bit_cast(dim_idx, dim_sz.get_type(), "")
-                    .unwrap();
-
-                let dim_lt =
-                    ctx.builder.build_int_compare(IntPredicate::SLT, dim_idx, dim_sz, "").unwrap();
-
-                ctx.make_assert(
-                    generator,
-                    dim_lt,
-                    "0:IndexError",
-                    "index {0} is out of bounds for axis 0 with size {1}",
-                    [Some(dim_idx), Some(dim_sz), None],
-                    ctx.current_loc,
-                );
-
-                Ok(())
-            },
-            llvm_usize.const_int(1, false),
-        )
-        .unwrap();
-
-        let ptr = unsafe { self.ptr_offset_unchecked(ctx, generator, indices, name) };
-        // TODO: Current implementation is transparent
-        ctx.builder
-            .build_pointer_cast(
-                ptr,
-                BasicTypeEnum::try_from(self.element_type(ctx, generator))
-                    .unwrap()
-                    .ptr_type(AddressSpace::default()),
-                "",
-            )
-            .unwrap()
-    }
-}
-
-impl<'ctx, Index: UntypedArrayLikeAccessor<'ctx>> UntypedArrayLikeAccessor<'ctx, Index>
-    for NDArrayDataProxy<'ctx, '_>
-{
-}
-impl<'ctx, Index: UntypedArrayLikeAccessor<'ctx>> UntypedArrayLikeMutator<'ctx, Index>
-    for NDArrayDataProxy<'ctx, '_>
-{
-}

nac3core/src/codegen/values/range.rs

@@ -1,153 +0,0 @@
-use inkwell::values::{BasicValueEnum, IntValue, PointerValue};
-
-use super::ProxyValue;
-use crate::codegen::{types::RangeType, CodeGenContext};
-
-/// Proxy type for accessing a `range` value in LLVM.
-#[derive(Copy, Clone)]
-pub struct RangeValue<'ctx> {
-    value: PointerValue<'ctx>,
-    name: Option<&'ctx str>,
-}
-
-impl<'ctx> RangeValue<'ctx> {
-    /// Checks whether `value` is an instance of `range`, returning [Err] if `value` is not an instance.
-    pub fn is_representable(value: PointerValue<'ctx>) -> Result<(), String> {
-        RangeType::is_representable(value.get_type())
-    }
-
-    /// Creates an [`RangeValue`] from a [`PointerValue`].
-    #[must_use]
-    pub fn from_pointer_value(ptr: PointerValue<'ctx>, name: Option<&'ctx str>) -> Self {
-        debug_assert!(Self::is_representable(ptr).is_ok());
-
-        RangeValue { value: ptr, name }
-    }
-
-    fn ptr_to_start(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        let llvm_i32 = ctx.ctx.i32_type();
-        let var_name = self.name.map(|v| format!("{v}.start.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.as_base_value(),
-                    &[llvm_i32.const_zero(), llvm_i32.const_int(0, false)],
-                    var_name.as_str(),
-                )
-                .unwrap()
-        }
-    }
-
-    fn ptr_to_end(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        let llvm_i32 = ctx.ctx.i32_type();
-        let var_name = self.name.map(|v| format!("{v}.end.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.as_base_value(),
-                    &[llvm_i32.const_zero(), llvm_i32.const_int(1, false)],
-                    var_name.as_str(),
-                )
-                .unwrap()
-        }
-    }
-
-    fn ptr_to_step(&self, ctx: &CodeGenContext<'ctx, '_>) -> PointerValue<'ctx> {
-        let llvm_i32 = ctx.ctx.i32_type();
-        let var_name = self.name.map(|v| format!("{v}.step.addr")).unwrap_or_default();
-
-        unsafe {
-            ctx.builder
-                .build_in_bounds_gep(
-                    self.as_base_value(),
-                    &[llvm_i32.const_zero(), llvm_i32.const_int(2, false)],
-                    var_name.as_str(),
-                )
-                .unwrap()
-        }
-    }
-
-    /// Stores the `start` value into this instance.
-    pub fn store_start(&self, ctx: &CodeGenContext<'ctx, '_>, start: IntValue<'ctx>) {
-        debug_assert_eq!(start.get_type().get_bit_width(), 32);
-
-        let pstart = self.ptr_to_start(ctx);
-        ctx.builder.build_store(pstart, start).unwrap();
-    }
-
-    /// Returns the `start` value of this `range`.
-    pub fn load_start(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
-        let pstart = self.ptr_to_start(ctx);
-        let var_name = name
-            .map(ToString::to_string)
-            .or_else(|| self.name.map(|v| format!("{v}.start")))
-            .unwrap_or_default();
-
-        ctx.builder
-            .build_load(pstart, var_name.as_str())
-            .map(BasicValueEnum::into_int_value)
-            .unwrap()
-    }
-
-    /// Stores the `end` value into this instance.
-    pub fn store_end(&self, ctx: &CodeGenContext<'ctx, '_>, end: IntValue<'ctx>) {
-        debug_assert_eq!(end.get_type().get_bit_width(), 32);
-
-        let pend = self.ptr_to_end(ctx);
-        ctx.builder.build_store(pend, end).unwrap();
-    }
-
-    /// Returns the `end` value of this `range`.
-    pub fn load_end(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
-        let pend = self.ptr_to_end(ctx);
-        let var_name = name
-            .map(ToString::to_string)
-            .or_else(|| self.name.map(|v| format!("{v}.end")))
-            .unwrap_or_default();
-
-        ctx.builder.build_load(pend, var_name.as_str()).map(BasicValueEnum::into_int_value).unwrap()
-    }
-
-    /// Stores the `step` value into this instance.
-    pub fn store_step(&self, ctx: &CodeGenContext<'ctx, '_>, step: IntValue<'ctx>) {
-        debug_assert_eq!(step.get_type().get_bit_width(), 32);
-
-        let pstep = self.ptr_to_step(ctx);
-        ctx.builder.build_store(pstep, step).unwrap();
-    }
-
-    /// Returns the `step` value of this `range`.
-    pub fn load_step(&self, ctx: &CodeGenContext<'ctx, '_>, name: Option<&str>) -> IntValue<'ctx> {
-        let pstep = self.ptr_to_step(ctx);
-        let var_name = name
-            .map(ToString::to_string)
-            .or_else(|| self.name.map(|v| format!("{v}.step")))
-            .unwrap_or_default();
-
-        ctx.builder
-            .build_load(pstep, var_name.as_str())
-            .map(BasicValueEnum::into_int_value)
-            .unwrap()
-    }
-}
-
-impl<'ctx> ProxyValue<'ctx> for RangeValue<'ctx> {
-    type Base = PointerValue<'ctx>;
-    type Type = RangeType<'ctx>;
-
-    fn get_type(&self) -> Self::Type {
-        RangeType::from_type(self.value.get_type())
-    }
-
-    fn as_base_value(&self) -> Self::Base {
-        self.value
-    }
-}
-
-impl<'ctx> From<RangeValue<'ctx>> for PointerValue<'ctx> {
-    fn from(value: RangeValue<'ctx>) -> Self {
-        value.as_base_value()
-    }
-}

nac3core/src/lib.rs

@@ -1,25 +1,7 @@
-#![deny(future_incompatible, let_underscore, nonstandard_style, clippy::all)]
+#![warn(clippy::all)]
-#![warn(clippy::pedantic)]
+#![allow(dead_code)]
-#![allow(
-    dead_code,
-    clippy::cast_possible_truncation,
-    clippy::cast_sign_loss,
-    clippy::enum_glob_use,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::similar_names,
-    clippy::too_many_lines,
-    clippy::wildcard_imports
-)]
-
-// users of nac3core need to use the same version of these dependencies, so expose them as nac3core::*
-pub use inkwell;
-pub use nac3parser;
 
 pub mod codegen;
 pub mod symbol_resolver;
 pub mod toplevel;
 pub mod typecheck;
-
-extern crate self as nac3core;

nac3core/src/symbol_resolver.rs

@@ -1,24 +1,24 @@
-use std::{
+use std::fmt::Debug;
-    collections::{HashMap, HashSet},
+use std::sync::Arc;
-    fmt::{Debug, Display},
+use std::{collections::HashMap, collections::HashSet, fmt::Display};
-    rc::Rc,
+use std::rc::Rc;
-    sync::Arc,
-};
-
-use inkwell::values::{BasicValueEnum, FloatValue, IntValue, PointerValue, StructValue};
-use itertools::{chain, izip, Itertools};
-use parking_lot::RwLock;
-
-use nac3parser::ast::{Constant, Expr, Location, StrRef};
 
+use crate::typecheck::typedef::TypeEnum;
 use crate::{
-    codegen::{CodeGenContext, CodeGenerator},
+    codegen::CodeGenContext,
-    toplevel::{type_annotation::TypeAnnotation, DefinitionId, TopLevelDef},
+    toplevel::{DefinitionId, TopLevelDef, type_annotation::TypeAnnotation},
+};
+use crate::{
+    codegen::CodeGenerator,
     typecheck::{
         type_inferencer::PrimitiveStore,
-        typedef::{Type, TypeEnum, Unifier, VarMap},
+        typedef::{Type, Unifier},
     },
 };
+use inkwell::values::{BasicValueEnum, FloatValue, IntValue, PointerValue, StructValue};
+use itertools::{chain, izip};
+use nac3parser::ast::{Constant, Expr, Location, StrRef};
+use parking_lot::RwLock;
 
 #[derive(Clone, PartialEq, Debug)]
 pub enum SymbolValue {
@@ -43,7 +43,7 @@ impl SymbolValue {
         constant: &Constant,
         expected_ty: Type,
         primitives: &PrimitiveStore,
-        unifier: &mut Unifier,
+        unifier: &mut Unifier
     ) -> Result<Self, String> {
         match constant {
             Constant::None => {
@@ -66,30 +66,35 @@ impl SymbolValue {
                 } else {
                     Err(format!("Expected {expected_ty:?}, but got str"))
                 }
-            }
+            },
             Constant::Int(i) => {
                 if unifier.unioned(expected_ty, primitives.int32) {
-                    i32::try_from(*i).map(SymbolValue::I32).map_err(|e| e.to_string())
+                    i32::try_from(*i)
+                        .map(SymbolValue::I32)
+                        .map_err(|e| e.to_string())
                 } else if unifier.unioned(expected_ty, primitives.int64) {
-                    i64::try_from(*i).map(SymbolValue::I64).map_err(|e| e.to_string())
+                    i64::try_from(*i)
+                        .map(SymbolValue::I64)
+                        .map_err(|e| e.to_string())
                 } else if unifier.unioned(expected_ty, primitives.uint32) {
-                    u32::try_from(*i).map(SymbolValue::U32).map_err(|e| e.to_string())
+                    u32::try_from(*i)
+                        .map(SymbolValue::U32)
+                        .map_err(|e| e.to_string())
                 } else if unifier.unioned(expected_ty, primitives.uint64) {
-                    u64::try_from(*i).map(SymbolValue::U64).map_err(|e| e.to_string())
+                    u64::try_from(*i)
+                        .map(SymbolValue::U64)
+                        .map_err(|e| e.to_string())
                 } else {
                     Err(format!("Expected {}, but got int", unifier.stringify(expected_ty)))
                 }
             }
             Constant::Tuple(t) => {
                 let expected_ty = unifier.get_ty(expected_ty);
-                let TypeEnum::TTuple { ty, is_vararg_ctx } = expected_ty.as_ref() else {
+                let TypeEnum::TTuple { ty } = expected_ty.as_ref() else {
-                    return Err(format!(
+                    return Err(format!("Expected {:?}, but got Tuple", expected_ty.get_type_name()))
-                        "Expected {:?}, but got Tuple",
-                        expected_ty.get_type_name()
-                    ));
                 };
 
-                assert!(*is_vararg_ctx || ty.len() == t.len());
+                assert_eq!(ty.len(), t.len());
 
                 let elems = t
                     .iter()
@@ -104,45 +109,7 @@ impl SymbolValue {
                 } else {
                     Err(format!("Expected {expected_ty:?}, but got float"))
                 }
-            }
+            },
-            _ => Err(format!("Unsupported value type {constant:?}")),
-        }
-    }
-
-    /// Creates a [`SymbolValue`] from a [`Constant`], with its type being inferred from the constant value.
-    ///
-    /// * `constant` - The constant to create the value from.
-    pub fn from_constant_inferred(constant: &Constant) -> Result<Self, String> {
-        match constant {
-            Constant::None => Ok(SymbolValue::OptionNone),
-            Constant::Bool(b) => Ok(SymbolValue::Bool(*b)),
-            Constant::Str(s) => Ok(SymbolValue::Str(s.to_string())),
-            Constant::Int(i) => {
-                let i = *i;
-                if i >= 0 {
-                    i32::try_from(i)
-                        .map(SymbolValue::I32)
-                        .or_else(|_| i64::try_from(i).map(SymbolValue::I64))
-                        .map_err(|_| {
-                            format!("Literal cannot be expressed as any integral type: {i}")
-                        })
-                } else {
-                    u32::try_from(i)
-                        .map(SymbolValue::U32)
-                        .or_else(|_| u64::try_from(i).map(SymbolValue::U64))
-                        .map_err(|_| {
-                            format!("Literal cannot be expressed as any integral type: {i}")
-                        })
-                }
-            }
-            Constant::Tuple(t) => {
-                let elems = t
-                    .iter()
-                    .map(Self::from_constant_inferred)
-                    .collect::<Result<Vec<SymbolValue>, _>>()?;
-                Ok(SymbolValue::Tuple(elems))
-            }
-            Constant::Float(f) => Ok(SymbolValue::Double(*f)),
             _ => Err(format!("Unsupported value type {constant:?}")),
         }
     }
@@ -158,27 +125,28 @@ impl SymbolValue {
             SymbolValue::Double(_) => primitives.float,
             SymbolValue::Bool(_) => primitives.bool,
             SymbolValue::Tuple(vs) => {
-                let vs_tys = vs.iter().map(|v| v.get_type(primitives, unifier)).collect::<Vec<_>>();
+                let vs_tys = vs
-                unifier.add_ty(TypeEnum::TTuple { ty: vs_tys, is_vararg_ctx: false })
+                    .iter()
+                    .map(|v| v.get_type(primitives, unifier))
+                    .collect::<Vec<_>>();
+                unifier.add_ty(TypeEnum::TTuple {
+                    ty: vs_tys,
+                })
             }
             SymbolValue::OptionSome(_) | SymbolValue::OptionNone => primitives.option,
         }
     }
 
     /// Returns the [`TypeAnnotation`] representing the data type of this value.
-    pub fn get_type_annotation(
+    pub fn get_type_annotation(&self, primitives: &PrimitiveStore, unifier: &mut Unifier) -> TypeAnnotation {
-        &self,
-        primitives: &PrimitiveStore,
-        unifier: &mut Unifier,
-    ) -> TypeAnnotation {
         match self {
-            SymbolValue::Bool(..)
+            SymbolValue::Bool(..) => TypeAnnotation::Primitive(primitives.bool),
-            | SymbolValue::Double(..)
+            SymbolValue::Double(..) => TypeAnnotation::Primitive(primitives.float),
-            | SymbolValue::I32(..)
+            SymbolValue::I32(..) => TypeAnnotation::Primitive(primitives.int32),
-            | SymbolValue::I64(..)
+            SymbolValue::I64(..) => TypeAnnotation::Primitive(primitives.int64),
-            | SymbolValue::U32(..)
+            SymbolValue::U32(..) => TypeAnnotation::Primitive(primitives.uint32),
-            | SymbolValue::U64(..)
+            SymbolValue::U64(..) => TypeAnnotation::Primitive(primitives.uint64),
-            | SymbolValue::Str(..) => TypeAnnotation::Primitive(self.get_type(primitives, unifier)),
+            SymbolValue::Str(..) => TypeAnnotation::Primitive(primitives.str),
             SymbolValue::Tuple(vs) => {
                 let vs_tys = vs
                     .iter()
@@ -187,13 +155,13 @@ impl SymbolValue {
                 TypeAnnotation::Tuple(vs_tys)
             }
             SymbolValue::OptionNone => TypeAnnotation::CustomClass {
-                id: primitives.option.obj_id(unifier).unwrap(),
+                id: primitives.option.get_obj_id(unifier),
                 params: Vec::default(),
             },
             SymbolValue::OptionSome(v) => {
                 let ty = v.get_type_annotation(primitives, unifier);
                 TypeAnnotation::CustomClass {
-                    id: primitives.option.obj_id(unifier).unwrap(),
+                    id: primitives.option.get_obj_id(unifier),
                     params: vec![ty],
                 }
             }
@@ -201,11 +169,7 @@ impl SymbolValue {
     }
 
     /// Returns the [`TypeEnum`] representing the data type of this value.
-    pub fn get_type_enum(
+    pub fn get_type_enum(&self, primitives: &PrimitiveStore, unifier: &mut Unifier) -> Rc<TypeEnum> {
-        &self,
-        primitives: &PrimitiveStore,
-        unifier: &mut Unifier,
-    ) -> Rc<TypeEnum> {
         let ty = self.get_type(primitives, unifier);
         unifier.get_ty(ty)
     }
@@ -236,38 +200,6 @@ impl Display for SymbolValue {
     }
 }
 
-impl TryFrom<SymbolValue> for u64 {
-    type Error = ();
-
-    /// Tries to convert a [`SymbolValue`] into a [`u64`], returning [`Err`] if the value is not
-    /// numeric or if the value cannot be converted into a `u64` without overflow.
-    fn try_from(value: SymbolValue) -> Result<Self, Self::Error> {
-        match value {
-            SymbolValue::I32(v) => u64::try_from(v).map_err(|_| ()),
-            SymbolValue::I64(v) => u64::try_from(v).map_err(|_| ()),
-            SymbolValue::U32(v) => Ok(u64::from(v)),
-            SymbolValue::U64(v) => Ok(v),
-            _ => Err(()),
-        }
-    }
-}
-
-impl TryFrom<SymbolValue> for i128 {
-    type Error = ();
-
-    /// Tries to convert a [`SymbolValue`] into a [`i128`], returning [`Err`] if the value is not
-    /// numeric.
-    fn try_from(value: SymbolValue) -> Result<Self, Self::Error> {
-        match value {
-            SymbolValue::I32(v) => Ok(i128::from(v)),
-            SymbolValue::I64(v) => Ok(i128::from(v)),
-            SymbolValue::U32(v) => Ok(i128::from(v)),
-            SymbolValue::U64(v) => Ok(i128::from(v)),
-            _ => Err(()),
-        }
-    }
-}
-
 pub trait StaticValue {
     /// Returns a unique identifier for this value.
     fn get_unique_identifier(&self) -> u64;
@@ -300,10 +232,10 @@ pub trait StaticValue {
 
 #[derive(Clone)]
 pub enum ValueEnum<'ctx> {
-    /// [`ValueEnum`] representing a static value.
+    /// [ValueEnum] representing a static value.
     Static(Arc<dyn StaticValue + Send + Sync>),
 
-    /// [`ValueEnum`] representing a dynamic value.
+    /// [ValueEnum] representing a dynamic value.
     Dynamic(BasicValueEnum<'ctx>),
 }
 
@@ -338,6 +270,7 @@ impl<'ctx> From<StructValue<'ctx>> for ValueEnum<'ctx> {
 }
 
 impl<'ctx> ValueEnum<'ctx> {
+
     /// Converts this [`ValueEnum`] to a [`BasicValueEnum`].
     pub fn to_basic_value_enum<'a>(
         self,
@@ -369,7 +302,6 @@ pub trait SymbolResolver {
         &self,
         str: StrRef,
         ctx: &mut CodeGenContext<'ctx, '_>,
-        generator: &mut dyn CodeGenerator,
     ) -> Option<ValueEnum<'ctx>>;
 
     fn get_default_param_value(&self, expr: &Expr) -> Option<SymbolValue>;
@@ -380,7 +312,7 @@ pub trait SymbolResolver {
         &self,
         _unifier: &mut Unifier,
         _top_level_defs: &[Arc<RwLock<TopLevelDef>>],
-        _primitives: &PrimitiveStore,
+        _primitives: &PrimitiveStore
     ) -> Result<(), String> {
         Ok(())
     }
@@ -393,12 +325,12 @@ thread_local! {
         "float".into(),
         "bool".into(),
         "virtual".into(),
+        "list".into(),
         "tuple".into(),
         "str".into(),
         "Exception".into(),
         "uint32".into(),
         "uint64".into(),
-        "Literal".into(),
     ];
 }
 
@@ -417,12 +349,12 @@ pub fn parse_type_annotation<T>(
     let float_id = ids[2];
     let bool_id = ids[3];
     let virtual_id = ids[4];
-    let tuple_id = ids[5];
+    let list_id = ids[5];
-    let str_id = ids[6];
+    let tuple_id = ids[6];
-    let exn_id = ids[7];
+    let str_id = ids[7];
-    let uint32_id = ids[8];
+    let exn_id = ids[8];
-    let uint64_id = ids[9];
+    let uint32_id = ids[9];
-    let literal_id = ids[10];
+    let uint64_id = ids[10];
 
     let name_handling = |id: &StrRef, loc: Location, unifier: &mut Unifier| {
         if *id == int32_id {
@@ -447,29 +379,40 @@ pub fn parse_type_annotation<T>(
                 let def = top_level_defs[obj_id.0].read();
                 if let TopLevelDef::Class { fields, methods, type_vars, .. } = &*def {
                     if !type_vars.is_empty() {
-                        return Err(HashSet::from([format!(
+                        return Err(HashSet::from([
-                            "Unexpected number of type parameters: expected {} but got 0",
+                            format!(
-                            type_vars.len()
+                                "Unexpected number of type parameters: expected {} but got 0",
-                        )]));
+                                type_vars.len()
+                            ),
+                        ]))
                     }
                     let fields = chain(
                         fields.iter().map(|(k, v, m)| (*k, (*v, *m))),
                         methods.iter().map(|(k, v, _)| (*k, (*v, false))),
                     )
-                    .collect();
+                        .collect();
-                    Ok(unifier.add_ty(TypeEnum::TObj { obj_id, fields, params: VarMap::default() }))
+                    Ok(unifier.add_ty(TypeEnum::TObj {
+                        obj_id,
+                        fields,
+                        params: HashMap::default(),
+                    }))
                 } else {
-                    Err(HashSet::from([format!("Cannot use function name as type at {loc}")]))
+                    Err(HashSet::from([
+                        format!("Cannot use function name as type at {loc}"),
+                    ]))
                 }
             } else {
-                let ty =
+                let ty = resolver
-                    resolver.get_symbol_type(unifier, top_level_defs, primitives, *id).map_err(
+                    .get_symbol_type(unifier, top_level_defs, primitives, *id)
-                        |e| HashSet::from([format!("Unknown type annotation at {loc}: {e}")]),
+                    .map_err(|e| HashSet::from([
-                    )?;
+                        format!("Unknown type annotation at {loc}: {e}"),
+                    ]))?;
                 if let TypeEnum::TVar { .. } = &*unifier.get_ty(ty) {
                     Ok(ty)
                 } else {
-                    Err(HashSet::from([format!("Unknown type annotation {id} at {loc}")]))
+                    Err(HashSet::from([
+                        format!("Unknown type annotation {id} at {loc}"),
+                    ]))
                 }
             }
         }
@@ -479,6 +422,9 @@ pub fn parse_type_annotation<T>(
         if *id == virtual_id {
             let ty = parse_type_annotation(resolver, top_level_defs, unifier, primitives, slice)?;
             Ok(unifier.add_ty(TypeEnum::TVirtual { ty }))
+        } else if *id == list_id {
+            let ty = parse_type_annotation(resolver, top_level_defs, unifier, primitives, slice)?;
+            Ok(unifier.add_ty(TypeEnum::TList { ty }))
         } else if *id == tuple_id {
             if let Tuple { elts, .. } = &slice.node {
                 let ty = elts
@@ -487,33 +433,12 @@ pub fn parse_type_annotation<T>(
                         parse_type_annotation(resolver, top_level_defs, unifier, primitives, elt)
                     })
                     .collect::<Result<Vec<_>, _>>()?;
-                Ok(unifier.add_ty(TypeEnum::TTuple { ty, is_vararg_ctx: false }))
+                Ok(unifier.add_ty(TypeEnum::TTuple { ty }))
             } else {
-                Err(HashSet::from(["Expected multiple elements for tuple".into()]))
+                Err(HashSet::from([
+                    "Expected multiple elements for tuple".into()
+                ]))
             }
-        } else if *id == literal_id {
-            let mut parse_literal = |elt: &Expr<T>| {
-                let ty = parse_type_annotation(resolver, top_level_defs, unifier, primitives, elt)?;
-                let ty_enum = &*unifier.get_ty_immutable(ty);
-                match ty_enum {
-                    TypeEnum::TLiteral { values, .. } => Ok(values.clone()),
-                    _ => Err(HashSet::from([format!(
-                        "Expected literal in type argument for Literal at {}",
-                        elt.location
-                    )])),
-                }
-            };
-
-            let values = if let Tuple { elts, .. } = &slice.node {
-                elts.iter().map(&mut parse_literal).collect::<Result<Vec<_>, _>>()?
-            } else {
-                vec![parse_literal(slice)?]
-            }
-            .into_iter()
-            .flatten()
-            .collect_vec();
-
-            Ok(unifier.get_fresh_literal(values, Some(slice.location)))
         } else {
             let types = if let Tuple { elts, .. } = &slice.node {
                 elts.iter()
@@ -529,13 +454,15 @@ pub fn parse_type_annotation<T>(
             let def = top_level_defs[obj_id.0].read();
             if let TopLevelDef::Class { fields, methods, type_vars, .. } = &*def {
                 if types.len() != type_vars.len() {
-                    return Err(HashSet::from([format!(
+                    return Err(HashSet::from([
-                        "Unexpected number of type parameters: expected {} but got {}",
+                        format!(
-                        type_vars.len(),
+                            "Unexpected number of type parameters: expected {} but got {}",
-                        types.len()
+                            type_vars.len(),
-                    )]));
+                            types.len()
+                        ),
+                    ]))
                 }
-                let mut subst = VarMap::new();
+                let mut subst = HashMap::new();
                 for (var, ty) in izip!(type_vars.iter(), types.iter()) {
                     let id = if let TypeEnum::TVar { id, .. } = &*unifier.get_ty(*var) {
                         *id
@@ -557,7 +484,9 @@ pub fn parse_type_annotation<T>(
                 }));
                 Ok(unifier.add_ty(TypeEnum::TObj { obj_id, fields, params: subst }))
             } else {
-                Err(HashSet::from(["Cannot use function name as type".into()]))
+                Err(HashSet::from([
+                    "Cannot use function name as type".into(),
+                ]))
             }
         }
     };
@@ -568,13 +497,14 @@ pub fn parse_type_annotation<T>(
             if let Name { id, .. } = &value.node {
                 subscript_name_handle(id, slice, unifier)
             } else {
-                Err(HashSet::from([format!("unsupported type expression at {}", expr.location)]))
+                Err(HashSet::from([
+                    format!("unsupported type expression at {}", expr.location),
+                ]))
             }
         }
-        Constant { value, .. } => SymbolValue::from_constant_inferred(value)
+        _ => Err(HashSet::from([
-            .map(|v| unifier.get_fresh_literal(vec![v], Some(expr.location)))
+            format!("unsupported type expression at {}", expr.location),
-            .map_err(|err| HashSet::from([err])),
+        ])),
-        _ => Err(HashSet::from([format!("unsupported type expression at {}", expr.location)])),
     }
 }
 

nac3core/src/toplevel/mod.rs

@@ -6,64 +6,53 @@ use std::{
     sync::Arc,
 };
 
-use inkwell::values::BasicValueEnum;
+use super::codegen::CodeGenContext;
-use itertools::Itertools;
+use super::typecheck::type_inferencer::PrimitiveStore;
-use parking_lot::RwLock;
+use super::typecheck::typedef::{FunSignature, FuncArg, SharedUnifier, Type, TypeEnum, Unifier};
-
-use nac3parser::ast::{self, Expr, Location, Stmt, StrRef};
-
 use crate::{
-    codegen::{CodeGenContext, CodeGenerator},
+    codegen::CodeGenerator,
     symbol_resolver::{SymbolResolver, ValueEnum},
-    typecheck::{
+    typecheck::{type_inferencer::CodeLocation, typedef::CallId},
-        type_inferencer::{CodeLocation, PrimitiveStore},
-        typedef::{
-            CallId, FunSignature, FuncArg, SharedUnifier, Type, TypeEnum, TypeVarId, Unifier,
-            VarMap,
-        },
-    },
 };
-use composer::*;
+use inkwell::values::BasicValueEnum;
-use type_annotation::*;
+use itertools::{izip, Itertools};
-
+use nac3parser::ast::{self, Location, Stmt, StrRef};
-pub mod builtins;
+use parking_lot::RwLock;
-pub mod composer;
-pub mod helper;
-pub mod numpy;
-#[cfg(test)]
-mod test;
-pub mod type_annotation;
 
 #[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash, Debug)]
 pub struct DefinitionId(pub usize);
 
-type GenCallCallback = dyn for<'ctx, 'a> Fn(
+pub mod builtins;
-        &mut CodeGenContext<'ctx, 'a>,
+pub mod composer;
-        Option<(Type, ValueEnum<'ctx>)>,
+pub mod helper;
-        (&FunSignature, DefinitionId),
+pub mod type_annotation;
-        Vec<(Option<StrRef>, ValueEnum<'ctx>)>,
+use composer::*;
-        &mut dyn CodeGenerator,
+use type_annotation::*;
-    ) -> Result<Option<BasicValueEnum<'ctx>>, String>
+#[cfg(test)]
-    + Send
+mod test;
-    + Sync;
+
+type GenCallCallback = Box<
+    dyn for<'ctx, 'a> Fn(
+            &mut CodeGenContext<'ctx, 'a>,
+            Option<(Type, ValueEnum<'ctx>)>,
+            (&FunSignature, DefinitionId),
+            Vec<(Option<StrRef>, ValueEnum<'ctx>)>,
+            &mut dyn CodeGenerator,
+        ) -> Result<Option<BasicValueEnum<'ctx>>, String>
+        + Send
+        + Sync,
+>;
 
 pub struct GenCall {
-    fp: Box<GenCallCallback>,
+    fp: GenCallCallback,
 }
 
 impl GenCall {
     #[must_use]
-    pub fn new(fp: Box<GenCallCallback>) -> GenCall {
+    pub fn new(fp: GenCallCallback) -> GenCall {
         GenCall { fp }
     }
 
-    /// Creates a dummy instance of [`GenCall`], which invokes [`unreachable!()`] with the given
-    /// `reason`.
-    #[must_use]
-    pub fn create_dummy(reason: String) -> GenCall {
-        Self::new(Box::new(move |_, _, _, _, _| unreachable!("{reason}")))
-    }
-
     pub fn run<'ctx>(
         &self,
         ctx: &mut CodeGenContext<'ctx, '_>,
@@ -86,7 +75,7 @@ impl Debug for GenCall {
 pub struct FunInstance {
     pub body: Arc<Vec<Stmt<Option<Type>>>>,
     pub calls: Arc<HashMap<CodeLocation, CallId>>,
-    pub subst: VarMap,
+    pub subst: HashMap<u32, Type>,
     pub unifier_id: usize,
 }
 
@@ -95,7 +84,7 @@ pub enum TopLevelDef {
     Class {
         /// Name for error messages and symbols.
         name: StrRef,
-        /// Object ID used for [`TypeEnum`].
+        /// Object ID used for [TypeEnum].
         object_id: DefinitionId,
         /// type variables bounded to the class.
         type_vars: Vec<Type>,
@@ -103,10 +92,6 @@ pub enum TopLevelDef {
         ///
         /// Name and type is mutable.
         fields: Vec<(StrRef, Type, bool)>,
-        /// Class Attributes.
-        ///
-        /// Name, type, value.
-        attributes: Vec<(StrRef, Type, ast::Constant)>,
         /// Class methods, pointing to the corresponding function definition.
         methods: Vec<(StrRef, Type, DefinitionId)>,
         /// Ancestor classes, including itself.
@@ -126,18 +111,18 @@ pub enum TopLevelDef {
         /// Function signature.
         signature: Type,
         /// Instantiated type variable IDs.
-        var_id: Vec<TypeVarId>,
+        var_id: Vec<u32>,
         /// Function instance to symbol mapping
         ///
         /// * Key: String representation of type variable values, sorted by variable ID in ascending
-        ///   order, including type variables associated with the class.
+        /// order, including type variables associated with the class.
         /// * Value: Function symbol name.
         instance_to_symbol: HashMap<String, String>,
         /// Function instances to annotated AST mapping
         ///
         /// * Key: String representation of type variable values, sorted by variable ID in ascending
-        ///   order, including type variables associated with the class. Excluding rigid type
+        /// order, including type variables associated with the class. Excluding rigid type
-        ///   variables.
+        /// variables.
         ///
         /// Rigid type variables that would be substituted when the function is instantiated.
         instance_to_stmt: HashMap<String, FunInstance>,
@@ -148,25 +133,6 @@ pub enum TopLevelDef {
         /// Definition location.
         loc: Option<Location>,
     },
-    Variable {
-        /// Qualified name of the global variable, should be unique globally.
-        name: String,
-
-        /// Simple name, the same as in method/function definition.
-        simple_name: StrRef,
-
-        /// Type of the global variable.
-        ty: Type,
-
-        /// The declared type of the global variable, or [`None`] if no type annotation is provided.
-        ty_decl: Option<Expr>,
-
-        /// Symbol resolver of the module defined the class.
-        resolver: Option<Arc<dyn SymbolResolver + Send + Sync>>,
-
-        /// Definition location.
-        loc: Option<Location>,
-    },
 }
 
 pub struct TopLevelContext {

nac3core/src/toplevel/numpy.rs

@@ -1,84 +0,0 @@
-use itertools::Itertools;
-
-use super::helper::PrimDef;
-use crate::typecheck::{
-    type_inferencer::PrimitiveStore,
-    typedef::{Type, TypeEnum, TypeVarId, Unifier, VarMap},
-};
-
-/// Creates a `ndarray` [`Type`] with the given type arguments.
-///
-/// * `dtype` - The element type of the `ndarray`, or [`None`] if the type variable is not
-///   specialized.
-/// * `ndims` - The number of dimensions of the `ndarray`, or [`None`] if the type variable is not
-///   specialized.
-pub fn make_ndarray_ty(
-    unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
-    dtype: Option<Type>,
-    ndims: Option<Type>,
-) -> Type {
-    subst_ndarray_tvars(unifier, primitives.ndarray, dtype, ndims)
-}
-
-/// Substitutes type variables in `ndarray`.
-///
-/// * `dtype` - The element type of the `ndarray`, or [`None`] if the type variable is not
-///   specialized.
-/// * `ndims` - The number of dimensions of the `ndarray`, or [`None`] if the type variable is not
-///   specialized.
-pub fn subst_ndarray_tvars(
-    unifier: &mut Unifier,
-    ndarray: Type,
-    dtype: Option<Type>,
-    ndims: Option<Type>,
-) -> Type {
-    let TypeEnum::TObj { obj_id, params, .. } = &*unifier.get_ty_immutable(ndarray) else {
-        panic!("Expected `ndarray` to be TObj, but got {}", unifier.stringify(ndarray))
-    };
-    debug_assert_eq!(*obj_id, PrimDef::NDArray.id());
-
-    if dtype.is_none() && ndims.is_none() {
-        return ndarray;
-    }
-
-    let tvar_ids = params.iter().map(|(obj_id, _)| *obj_id).collect_vec();
-    debug_assert_eq!(tvar_ids.len(), 2);
-
-    let mut tvar_subst = VarMap::new();
-    if let Some(dtype) = dtype {
-        tvar_subst.insert(tvar_ids[0], dtype);
-    }
-    if let Some(ndims) = ndims {
-        tvar_subst.insert(tvar_ids[1], ndims);
-    }
-
-    unifier.subst(ndarray, &tvar_subst).unwrap_or(ndarray)
-}
-
-fn unpack_ndarray_tvars(unifier: &mut Unifier, ndarray: Type) -> Vec<(TypeVarId, Type)> {
-    let TypeEnum::TObj { obj_id, params, .. } = &*unifier.get_ty_immutable(ndarray) else {
-        panic!("Expected `ndarray` to be TObj, but got {}", unifier.stringify(ndarray))
-    };
-    debug_assert_eq!(*obj_id, PrimDef::NDArray.id());
-    debug_assert_eq!(params.len(), 2);
-
-    params
-        .iter()
-        .sorted_by_key(|(obj_id, _)| *obj_id)
-        .map(|(var_id, ty)| (*var_id, *ty))
-        .collect_vec()
-}
-
-/// Unpacks the type variable IDs of `ndarray` into a tuple. The elements of the tuple corresponds
-/// to `dtype` (the element type) and `ndims` (the number of dimensions) of the `ndarray`
-/// respectively.
-pub fn unpack_ndarray_var_ids(unifier: &mut Unifier, ndarray: Type) -> (TypeVarId, TypeVarId) {
-    unpack_ndarray_tvars(unifier, ndarray).into_iter().map(|v| v.0).collect_tuple().unwrap()
-}
-
-/// Unpacks the type variables of `ndarray` into a tuple. The elements of the tuple corresponds to
-/// `dtype` (the element type) and `ndims` (the number of dimensions) of the `ndarray` respectively.
-pub fn unpack_ndarray_var_tys(unifier: &mut Unifier, ndarray: Type) -> (Type, Type) {
-    unpack_ndarray_tvars(unifier, ndarray).into_iter().map(|v| v.1).collect_tuple().unwrap()
-}

nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__generic_class.snap

@@ -3,10 +3,10 @@ source: nac3core/src/toplevel/test.rs
 expression: res_vec
 ---
 [
+    "Class {\nname: \"Generic_A\",\nancestors: [\"Generic_A[V]\", \"B\"],\nfields: [\"aa\", \"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"foo\", \"fn[[b:T], none]\"), (\"fun\", \"fn[[a:int32], V]\")],\ntype_vars: [\"V\"]\n}\n",
+    "Function {\nname: \"Generic_A.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
+    "Function {\nname: \"Generic_A.fun\",\nsig: \"fn[[a:int32], V]\",\nvar_id: [22]\n}\n",
     "Class {\nname: \"B\",\nancestors: [\"B\"],\nfields: [\"aa\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"foo\", \"fn[[b:T], none]\")],\ntype_vars: []\n}\n",
     "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"B.foo\",\nsig: \"fn[[b:T], none]\",\nvar_id: []\n}\n",
-    "Class {\nname: \"Generic_A\",\nancestors: [\"Generic_A[V]\", \"B\"],\nfields: [\"aa\", \"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"foo\", \"fn[[b:T], none]\"), (\"fun\", \"fn[[a:int32], V]\")],\ntype_vars: [\"V\"]\n}\n",
-    "Function {\nname: \"Generic_A.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
-    "Function {\nname: \"Generic_A.fun\",\nsig: \"fn[[a:int32], V]\",\nvar_id: [TypeVarId(246)]\n}\n",
 ]

nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__inheritance_override.snap

@@ -7,7 +7,7 @@ expression: res_vec
     "Function {\nname: \"A.__init__\",\nsig: \"fn[[t:T], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"A.fun\",\nsig: \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\",\nvar_id: []\n}\n",
     "Function {\nname: \"A.foo\",\nsig: \"fn[[c:C], none]\",\nvar_id: []\n}\n",
-    "Class {\nname: \"B\",\nancestors: [\"B[typevar230]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: [\"typevar230\"]\n}\n",
+    "Class {\nname: \"B\",\nancestors: [\"B[typevar11]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: [\"typevar11\"]\n}\n",
     "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"B.fun\",\nsig: \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\",\nvar_id: []\n}\n",
     "Class {\nname: \"C\",\nancestors: [\"C\", \"B[bool]\", \"A[float]\"],\nfields: [\"a\", \"b\", \"c\", \"d\", \"e\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:int32, b:T], list[virtual[B[bool]]]]\"), (\"foo\", \"fn[[c:C], none]\")],\ntype_vars: []\n}\n",

nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__list_tuple_generic.snap

@@ -5,9 +5,9 @@ expression: res_vec
 [
     "Function {\nname: \"foo\",\nsig: \"fn[[a:list[int32], b:tuple[T, float]], A[B, bool]]\",\nvar_id: []\n}\n",
     "Class {\nname: \"A\",\nancestors: [\"A[T, V]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[v:V], none]\"), (\"fun\", \"fn[[a:T], V]\")],\ntype_vars: [\"T\", \"V\"]\n}\n",
-    "Function {\nname: \"A.__init__\",\nsig: \"fn[[v:V], none]\",\nvar_id: [TypeVarId(243)]\n}\n",
+    "Function {\nname: \"A.__init__\",\nsig: \"fn[[v:V], none]\",\nvar_id: [24]\n}\n",
-    "Function {\nname: \"A.fun\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(248)]\n}\n",
+    "Function {\nname: \"A.fun\",\nsig: \"fn[[a:T], V]\",\nvar_id: [29]\n}\n",
-    "Function {\nname: \"gfun\",\nsig: \"fn[[a:A[list[float], int32]], none]\",\nvar_id: []\n}\n",
+    "Function {\nname: \"gfun\",\nsig: \"fn[[a:A[int32, list[float]]], none]\",\nvar_id: []\n}\n",
     "Class {\nname: \"B\",\nancestors: [\"B\"],\nfields: [],\nmethods: [(\"__init__\", \"fn[[], none]\")],\ntype_vars: []\n}\n",
     "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
 ]

nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__self1.snap

@@ -3,11 +3,11 @@ source: nac3core/src/toplevel/test.rs
 expression: res_vec
 ---
 [
-    "Class {\nname: \"A\",\nancestors: [\"A[typevar229, typevar230]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[a:A[float, bool], b:B], none]\"), (\"fun\", \"fn[[a:A[float, bool]], A[bool, int32]]\")],\ntype_vars: [\"typevar229\", \"typevar230\"]\n}\n",
+    "Class {\nname: \"A\",\nancestors: [\"A[typevar10, typevar11]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[a:A[bool, float], b:B], none]\"), (\"fun\", \"fn[[a:A[bool, float]], A[bool, int32]]\")],\ntype_vars: [\"typevar10\", \"typevar11\"]\n}\n",
-    "Function {\nname: \"A.__init__\",\nsig: \"fn[[a:A[float, bool], b:B], none]\",\nvar_id: []\n}\n",
+    "Function {\nname: \"A.__init__\",\nsig: \"fn[[a:A[bool, float], b:B], none]\",\nvar_id: []\n}\n",
-    "Function {\nname: \"A.fun\",\nsig: \"fn[[a:A[float, bool]], A[bool, int32]]\",\nvar_id: []\n}\n",
+    "Function {\nname: \"A.fun\",\nsig: \"fn[[a:A[bool, float]], A[bool, int32]]\",\nvar_id: []\n}\n",
-    "Class {\nname: \"B\",\nancestors: [\"B\", \"A[int64, bool]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:A[float, bool]], A[bool, int32]]\"), (\"foo\", \"fn[[b:B], B]\"), (\"bar\", \"fn[[a:A[list[B], int32]], tuple[A[virtual[A[B, int32]], bool], B]]\")],\ntype_vars: []\n}\n",
+    "Class {\nname: \"B\",\nancestors: [\"B\", \"A[int64, bool]\"],\nfields: [\"a\", \"b\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[a:A[bool, float]], A[bool, int32]]\"), (\"foo\", \"fn[[b:B], B]\"), (\"bar\", \"fn[[a:A[int32, list[B]]], tuple[A[bool, virtual[A[B, int32]]], B]]\")],\ntype_vars: []\n}\n",
     "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"B.foo\",\nsig: \"fn[[b:B], B]\",\nvar_id: []\n}\n",
-    "Function {\nname: \"B.bar\",\nsig: \"fn[[a:A[list[B], int32]], tuple[A[virtual[A[B, int32]], bool], B]]\",\nvar_id: []\n}\n",
+    "Function {\nname: \"B.bar\",\nsig: \"fn[[a:A[int32, list[B]]], tuple[A[bool, virtual[A[B, int32]]], B]]\",\nvar_id: []\n}\n",
 ]

nac3core/src/toplevel/snapshots/nac3core__toplevel__test__test_analyze__simple_class_compose.snap

@@ -6,12 +6,12 @@ expression: res_vec
     "Class {\nname: \"A\",\nancestors: [\"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
     "Function {\nname: \"A.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"A.fun\",\nsig: \"fn[[b:B], none]\",\nvar_id: []\n}\n",
-    "Function {\nname: \"A.foo\",\nsig: \"fn[[a:T, b:V], none]\",\nvar_id: [TypeVarId(249)]\n}\n",
+    "Function {\nname: \"A.foo\",\nsig: \"fn[[a:T, b:V], none]\",\nvar_id: [30]\n}\n",
+    "Class {\nname: \"B\",\nancestors: [\"B\", \"C\", \"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
+    "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Class {\nname: \"C\",\nancestors: [\"C\", \"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
     "Function {\nname: \"C.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"C.fun\",\nsig: \"fn[[b:B], none]\",\nvar_id: []\n}\n",
-    "Class {\nname: \"B\",\nancestors: [\"B\", \"C\", \"A\"],\nfields: [\"a\"],\nmethods: [(\"__init__\", \"fn[[], none]\"), (\"fun\", \"fn[[b:B], none]\"), (\"foo\", \"fn[[a:T, b:V], none]\")],\ntype_vars: []\n}\n",
-    "Function {\nname: \"B.__init__\",\nsig: \"fn[[], none]\",\nvar_id: []\n}\n",
     "Function {\nname: \"foo\",\nsig: \"fn[[a:A], none]\",\nvar_id: []\n}\n",
-    "Function {\nname: \"ff\",\nsig: \"fn[[a:T], V]\",\nvar_id: [TypeVarId(257)]\n}\n",
+    "Function {\nname: \"ff\",\nsig: \"fn[[a:T], V]\",\nvar_id: [38]\n}\n",
 ]

nac3core/src/toplevel/test.rs

@@ -1,23 +1,19 @@
-use std::{collections::HashMap, sync::Arc};
-
-use indoc::indoc;
-use parking_lot::Mutex;
-use test_case::test_case;
-
-use nac3parser::{
-    ast::{fold::Fold, FileName},
-    parser::parse_program,
-};
-
-use super::{helper::PrimDef, DefinitionId, *};
 use crate::{
     codegen::CodeGenContext,
     symbol_resolver::{SymbolResolver, ValueEnum},
+    toplevel::DefinitionId,
     typecheck::{
         type_inferencer::PrimitiveStore,
-        typedef::{into_var_map, Type, Unifier},
+        typedef::{Type, Unifier},
     },
 };
+use indoc::indoc;
+use nac3parser::{ast::fold::Fold, parser::parse_program};
+use parking_lot::Mutex;
+use std::{collections::HashMap, sync::Arc};
+use test_case::test_case;
+
+use super::*;
 
 struct ResolverInternal {
     id_to_type: Mutex<HashMap<StrRef, Type>>,
@@ -56,25 +52,20 @@ impl SymbolResolver for Resolver {
             .id_to_type
             .lock()
             .get(&str)
-            .copied()
+            .cloned()
-            .ok_or_else(|| format!("cannot find symbol `{str}`"))
+            .ok_or_else(|| format!("cannot find symbol `{}`", str))
     }
 
-    fn get_symbol_value<'ctx>(
+    fn get_symbol_value<'ctx, 'a>(
         &self,
         _: StrRef,
-        _: &mut CodeGenContext<'ctx, '_>,
+        _: &mut CodeGenContext<'ctx, 'a>,
-        _: &mut dyn CodeGenerator,
     ) -> Option<ValueEnum<'ctx>> {
         unimplemented!()
     }
 
     fn get_identifier_def(&self, id: StrRef) -> Result<DefinitionId, HashSet<String>> {
-        self.0
+        self.0.id_to_def.lock().get(&id).cloned()
-            .id_to_def
-            .lock()
-            .get(&id)
-            .copied()
             .ok_or_else(|| HashSet::from(["Unknown identifier".to_string()]))
     }
 
@@ -120,14 +111,13 @@ impl SymbolResolver for Resolver {
     "register"
 )]
 fn test_simple_register(source: Vec<&str>) {
-    let mut composer =
+    let mut composer: TopLevelComposer = Default::default();
-        TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 64).0;
 
     for s in source {
-        let ast = parse_program(s, FileName::default()).unwrap();
+        let ast = parse_program(s, Default::default()).unwrap();
         let ast = ast[0].clone();
 
-        composer.register_top_level(ast, None, "", false).unwrap();
+        composer.register_top_level(ast, None, "".into(), false).unwrap();
     }
 }
 
@@ -141,15 +131,14 @@ fn test_simple_register(source: Vec<&str>) {
     "register"
 )]
 fn test_simple_register_without_constructor(source: &str) {
-    let mut composer =
+    let mut composer: TopLevelComposer = Default::default();
-        TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 64).0;
+    let ast = parse_program(source, Default::default()).unwrap();
-    let ast = parse_program(source, FileName::default()).unwrap();
     let ast = ast[0].clone();
-    composer.register_top_level(ast, None, "", true).unwrap();
+    composer.register_top_level(ast, None, "".into(), true).unwrap();
 }
 
 #[test_case(
-    &[
+    vec![
         indoc! {"
             def fun(a: int32) -> int32:
                 return a
@@ -163,36 +152,35 @@ fn test_simple_register_without_constructor(source: &str) {
                 return 3
         "},
     ],
-    &[
+    vec![
         "fn[[a:0], 0]",
         "fn[[a:2], 4]",
         "fn[[b:1], 0]",
     ],
-    &[
+    vec![
         "fun",
         "foo",
         "f"
     ];
     "function compose"
 )]
-fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
+fn test_simple_function_analyze(source: Vec<&str>, tys: Vec<&str>, names: Vec<&str>) {
-    let mut composer =
+    let mut composer: TopLevelComposer = Default::default();
-        TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 64).0;
 
     let internal_resolver = Arc::new(ResolverInternal {
-        id_to_def: Mutex::default(),
+        id_to_def: Default::default(),
-        id_to_type: Mutex::default(),
+        id_to_type: Default::default(),
-        class_names: Mutex::default(),
+        class_names: Default::default(),
     });
     let resolver =
         Arc::new(Resolver(internal_resolver.clone())) as Arc<dyn SymbolResolver + Send + Sync>;
 
     for s in source {
-        let ast = parse_program(s, FileName::default()).unwrap();
+        let ast = parse_program(s, Default::default()).unwrap();
         let ast = ast[0].clone();
 
         let (id, def_id, ty) =
-            composer.register_top_level(ast, Some(resolver.clone()), "", false).unwrap();
+            composer.register_top_level(ast, Some(resolver.clone()), "".into(), false).unwrap();
         internal_resolver.add_id_def(id, def_id);
         if let Some(ty) = ty {
             internal_resolver.add_id_type(id, ty);
@@ -218,7 +206,7 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
 }
 
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A():
                 a: int32
@@ -229,6 +217,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                 def foo(self, a: T, b: V):
                     pass
         "},
+        indoc! {"
+            class B(C):
+                def __init__(self):
+                    pass
+        "},
         indoc! {"
             class C(A):
                 def __init__(self):
@@ -237,11 +230,6 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     a = 1
                     pass
         "},
-        indoc! {"
-            class B(C):
-                def __init__(self):
-                    pass
-        "},
         indoc! {"
             def foo(a: A):
                 pass
@@ -251,19 +239,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                 pass
         "}
     ],
-    &[];
+    vec![];
     "simple class compose"
 )]
 #[test_case(
-    &[
+    vec![
-        indoc! {"
-        class B:
-            aa: bool
-            def __init__(self):
-                self.aa = False
-            def foo(self, b: T):
-                pass
-        "},
         indoc! {"
             class Generic_A(Generic[V], B):
                 a: int64
@@ -271,13 +251,21 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     self.a = 123123123123
                 def fun(self, a: int32) -> V:
                     pass
+        "},
+        indoc! {"
+            class B:
+                aa: bool
+                def __init__(self):
+                    self.aa = False
+                def foo(self, b: T):
+                    pass
         "}
     ],
-    &[];
+    vec![];
     "generic class"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             def foo(a: list[int32], b: tuple[T, float]) -> A[B, bool]:
                 pass
@@ -302,11 +290,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &[];
+    vec![];
     "list tuple generic"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(Generic[T, V]):
                 a: A[float, bool]
@@ -327,11 +315,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &[];
+    vec![];
     "self1"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(Generic[T]):
                 a: int32
@@ -361,11 +349,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &[];
+    vec![];
     "inheritance_override"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(Generic[T]):
                 def __init__(self):
@@ -374,11 +362,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &["application of type vars to generic class is not currently supported (at unknown:4:24)"];
+    vec!["application of type vars to generic class is not currently supported (at unknown:4:24)"];
     "err no type var in generic app"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(B):
                 def __init__(self):
@@ -390,51 +378,56 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &["NameError: name 'B' is not defined (at unknown:1:9)"];
+    vec!["cyclic inheritance detected"];
     "cyclic1"
 )]
 #[test_case(
-    &[
+    vec![
-        indoc! {"
-        class B(Generic[V, T], C[int32]):
-            def __init__(self):
-                pass
-        "},
         indoc! {"
             class A(B[bool, int64]):
                 def __init__(self):
                     pass
         "},
+        indoc! {"
+            class B(Generic[V, T], C[int32]):
+                def __init__(self):
+                    pass
+        "},
         indoc! {"
             class C(Generic[T], A):
                 def __init__(self):
                     pass
         "},
     ],
-    &["NameError: name 'C' is not defined (at unknown:1:25)"];
+    vec!["cyclic inheritance detected"];
     "cyclic2"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A:
                 pass
         "}
     ],
-    &["5: Class {\nname: \"A\",\ndef_id: DefinitionId(5),\nancestors: [CustomClassKind { id: DefinitionId(5), params: [] }],\nfields: [],\nmethods: [],\ntype_vars: []\n}"];
+    vec!["5: Class {\nname: \"A\",\ndef_id: DefinitionId(5),\nancestors: [CustomClassKind { id: DefinitionId(5), params: [] }],\nfields: [],\nmethods: [],\ntype_vars: []\n}"];
     "simple pass in class"
 )]
 #[test_case(
-    &[indoc! {"
+    vec![indoc! {"
         class A:
             def __init__():
                 pass
     "}],
-    &["__init__ method must have a `self` parameter (at unknown:2:5)"];
+    vec!["__init__ method must have a `self` parameter (at unknown:2:5)"];
     "err no self_1"
 )]
 #[test_case(
-    &[
+    vec![
+        indoc! {"
+            class A(B, Generic[T], C):
+                def __init__(self):
+                    pass
+        "},
         indoc! {"
             class B:
                 def __init__(self):
@@ -444,19 +437,14 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
             class C:
                 def __init__(self):
                     pass
-        "},
-        indoc! {"
-        class A(B, Generic[T], C):
-            def __init__(self):
-                pass
         "}
 
     ],
-    &["a class definition can only have at most one base class declaration and one generic declaration (at unknown:1:24)"];
+    vec!["a class definition can only have at most one base class declaration and one generic declaration (at unknown:1:24)"];
     "err multiple inheritance"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(Generic[T]):
                 a: int32
@@ -477,11 +465,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &["method fun has same name as ancestors' method, but incompatible type"];
+    vec!["method fun has same name as ancestors' method, but incompatible type"];
     "err_incompatible_inheritance_method"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A(Generic[T]):
                 a: int32
@@ -503,11 +491,11 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &["field `a` has already declared in the ancestor classes"];
+    vec!["field `a` has already declared in the ancestor classes"];
     "err_incompatible_inheritance_field"
 )]
 #[test_case(
-    &[
+    vec![
         indoc! {"
             class A:
                 def __init__(self):
@@ -520,13 +508,12 @@ fn test_simple_function_analyze(source: &[&str], tys: &[&str], names: &[&str]) {
                     pass
         "}
     ],
-    &["duplicate definition of class `A` (at unknown:1:1)"];
+    vec!["duplicate definition of class `A` (at unknown:1:1)"];
     "class same name"
 )]
-fn test_analyze(source: &[&str], res: &[&str]) {
+fn test_analyze(source: Vec<&str>, res: Vec<&str>) {
     let print = false;
-    let mut composer =
+    let mut composer: TopLevelComposer = Default::default();
-        TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 64).0;
 
     let internal_resolver = make_internal_resolver_with_tvar(
         vec![
@@ -541,15 +528,15 @@ fn test_analyze(source: &[&str], res: &[&str]) {
         Arc::new(Resolver(internal_resolver.clone())) as Arc<dyn SymbolResolver + Send + Sync>;
 
     for s in source {
-        let ast = parse_program(s, FileName::default()).unwrap();
+        let ast = parse_program(s, Default::default()).unwrap();
         let ast = ast[0].clone();
 
         let (id, def_id, ty) = {
-            match composer.register_top_level(ast, Some(resolver.clone()), "", false) {
+            match composer.register_top_level(ast, Some(resolver.clone()), "".into(), false) {
                 Ok(x) => x,
                 Err(msg) => {
                     if print {
-                        println!("{msg}");
+                        println!("{}", msg);
                     } else {
                         assert_eq!(res[0], msg);
                     }
@@ -595,7 +582,7 @@ fn test_analyze(source: &[&str], res: &[&str]) {
                 return fib(n - 1)
         "}
     ],
-    &[];
+    vec![];
     "simple function"
 )]
 #[test_case(
@@ -628,7 +615,7 @@ fn test_analyze(source: &[&str], res: &[&str]) {
                 return a.fun() + 2
         "}
     ],
-    &[];
+    vec![];
     "simple class body"
 )]
 #[test_case(
@@ -653,7 +640,7 @@ fn test_analyze(source: &[&str], res: &[&str]) {
                 return [a, b]
         "}
     ],
-    &[];
+    vec![];
     "type var fun"
 )]
 #[test_case(
@@ -674,7 +661,7 @@ fn test_analyze(source: &[&str], res: &[&str]) {
                     return ret if self.b else self.fun(self.a)
         "}
     ],
-    &[];
+    vec![];
     "type var class"
 )]
 #[test_case(
@@ -698,13 +685,12 @@ fn test_analyze(source: &[&str], res: &[&str]) {
                         self.b = True
         "}
     ],
-    &[];
+    vec![];
     "no_init_inst_check"
 )]
-fn test_inference(source: Vec<&str>, res: &[&str]) {
+fn test_inference(source: Vec<&str>, res: Vec<&str>) {
     let print = true;
-    let mut composer =
+    let mut composer: TopLevelComposer = Default::default();
-        TopLevelComposer::new(Vec::new(), Vec::new(), ComposerConfig::default(), 64).0;
 
     let internal_resolver = make_internal_resolver_with_tvar(
         vec![
@@ -726,15 +712,15 @@ fn test_inference(source: Vec<&str>, res: &[&str]) {
         Arc::new(Resolver(internal_resolver.clone())) as Arc<dyn SymbolResolver + Send + Sync>;
 
     for s in source {
-        let ast = parse_program(s, FileName::default()).unwrap();
+        let ast = parse_program(s, Default::default()).unwrap();
         let ast = ast[0].clone();
 
         let (id, def_id, ty) = {
-            match composer.register_top_level(ast, Some(resolver.clone()), "", false) {
+            match composer.register_top_level(ast, Some(resolver.clone()), "".into(), false) {
                 Ok(x) => x,
                 Err(msg) => {
                     if print {
-                        println!("{msg}");
+                        println!("{}", msg);
                     } else {
                         assert_eq!(res[0], msg);
                     }
@@ -757,7 +743,9 @@ fn test_inference(source: Vec<&str>, res: &[&str]) {
     } else {
         // skip 5 to skip primitives
         let mut stringify_folder = TypeToStringFolder { unifier: &mut composer.unifier };
-        for (def, _) in composer.definition_ast_list.iter().skip(composer.builtin_num) {
+        for (_i, (def, _)) in
+            composer.definition_ast_list.iter().skip(composer.builtin_num).enumerate()
+        {
             let def = &*def.read();
 
             if let TopLevelDef::Function { instance_to_stmt, name, .. } = def {
@@ -766,7 +754,7 @@ fn test_inference(source: Vec<&str>, res: &[&str]) {
                     name,
                     instance_to_stmt.len()
                 );
-                for inst in instance_to_stmt {
+                for inst in instance_to_stmt.iter() {
                     let ast = &inst.1.body;
                     for b in ast.iter() {
                         println!("{:?}", stringify_folder.fold_stmt(b.clone()).unwrap());
@@ -784,29 +772,22 @@ fn make_internal_resolver_with_tvar(
     unifier: &mut Unifier,
     print: bool,
 ) -> Arc<ResolverInternal> {
-    let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
-    let list = unifier.add_ty(TypeEnum::TObj {
-        obj_id: PrimDef::List.id(),
-        fields: HashMap::new(),
-        params: into_var_map([list_elem_tvar]),
-    });
-
     let res: Arc<ResolverInternal> = ResolverInternal {
-        id_to_def: Mutex::new(HashMap::from([("list".into(), PrimDef::List.id())])),
+        id_to_def: Default::default(),
         id_to_type: tvars
             .into_iter()
             .map(|(name, range)| {
                 (name, {
-                    let tvar = unifier.get_fresh_var_with_range(range.as_slice(), None, None);
+                    let (ty, id) = unifier.get_fresh_var_with_range(range.as_slice(), None, None);
                     if print {
-                        println!("{}: {:?}, typevar{}", name, tvar.ty, tvar.id);
+                        println!("{}: {:?}, typevar{}", name, ty, id);
                     }
-                    tvar.ty
+                    ty
                 })
             })
             .collect::<HashMap<_, _>>()
             .into(),
-        class_names: Mutex::new(HashMap::from([("list".into(), list)])),
+        class_names: Default::default(),
     }
     .into();
     if print {
@@ -826,8 +807,8 @@ impl<'a> Fold<Option<Type>> for TypeToStringFolder<'a> {
         Ok(if let Some(ty) = user {
             self.unifier.internal_stringify(
                 ty,
-                &mut |id| format!("class{id}"),
+                &mut |id| format!("class{}", id.to_string()),
-                &mut |id| format!("typevar{id}"),
+                &mut |id| format!("typevar{}", id.to_string()),
                 &mut None,
             )
         } else {

nac3core/src/toplevel/type_annotation.rs

@@ -1,12 +1,5 @@
-use strum::IntoEnumIterator;
+use crate::symbol_resolver::SymbolValue;
-
+use super::*;
-use nac3parser::ast::Constant;
-
-use super::{
-    helper::{PrimDef, PrimDefDetails},
-    *,
-};
-use crate::{symbol_resolver::SymbolValue, typecheck::typedef::VarMap};
 
 #[derive(Clone, Debug)]
 pub enum TypeAnnotation {
@@ -20,8 +13,17 @@ pub enum TypeAnnotation {
     // can only be CustomClassKind
     Virtual(Box<TypeAnnotation>),
     TypeVar(Type),
-    /// A `Literal` allowing a subset of literals.
+    /// A constant used in the context of a const-generic variable.
-    Literal(Vec<Constant>),
+    Constant {
+        /// The non-type variable associated with this constant.
+        ///
+        /// Invoking [Unifier::get_ty] on this type will return a [TypeEnum::TVar] representing the
+        /// const generic variable of which this constant is associated with.
+        ty: Type,
+        /// The constant value of this constant.
+        value: SymbolValue
+    },
+    List(Box<TypeAnnotation>),
     Tuple(Vec<TypeAnnotation>),
 }
 
@@ -32,7 +34,9 @@ impl TypeAnnotation {
             Primitive(ty) | TypeVar(ty) => unifier.stringify(*ty),
             CustomClass { id, params } => {
                 let class_name = if let Some(ref top) = unifier.top_level {
-                    if let TopLevelDef::Class { name, .. } = &*top.definitions.read()[id.0].read() {
+                    if let TopLevelDef::Class { name, .. } =
+                        &*top.definitions.read()[id.0].read()
+                    {
                         (*name).into()
                     } else {
                         unreachable!()
@@ -40,26 +44,25 @@ impl TypeAnnotation {
                 } else {
                     format!("class_def_{}", id.0)
                 };
-                format!("{}{}", class_name, {
-                    let param_list =
-                        params.iter().map(|p| p.stringify(unifier)).collect_vec().join(", ");
-                    if param_list.is_empty() {
-                        String::new()
-                    } else {
-                        format!("[{param_list}]")
-                    }
-                })
-            }
-            Literal(values) => {
-                format!("Literal({})", values.iter().map(|v| format!("{v:?}")).join(", "))
-            }
-            Virtual(ty) => format!("virtual[{}]", ty.stringify(unifier)),
-            Tuple(types) => {
                 format!(
-                    "tuple[{}]",
+                    "{}{}",
-                    types.iter().map(|p| p.stringify(unifier)).collect_vec().join(", ")
+                    class_name,
+                    {
+                        let param_list = params.iter().map(|p| p.stringify(unifier)).collect_vec().join(", ");
+                        if param_list.is_empty() {
+                            String::new()
+                        } else {
+                            format!("[{param_list}]")
+                        }
+                    }
                 )
             }
+            Constant { value, .. } => format!("Const({value})"),
+            Virtual(ty) => format!("virtual[{}]", ty.stringify(unifier)),
+            List(ty) => format!("list[{}]", ty.stringify(unifier)),
+            Tuple(types) => {
+                format!("tuple[{}]", types.iter().map(|p| p.stringify(unifier)).collect_vec().join(", "))
+            }
         }
     }
 }
@@ -67,21 +70,22 @@ impl TypeAnnotation {
 /// Parses an AST expression `expr` into a [`TypeAnnotation`].
 ///
 /// * `locked` - A [`HashMap`] containing the IDs of known definitions, mapped to a [`Vec`] of all
-///   generic variables associated with the definition.
+/// generic variables associated with the definition.
 /// * `type_var` - The type variable associated with the type argument currently being parsed. Pass
-///   [`None`] when this function is invoked externally.
+/// [`None`] when this function is invoked externally.
-pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
+pub fn parse_ast_to_type_annotation_kinds<T>(
     resolver: &(dyn SymbolResolver + Send + Sync),
     top_level_defs: &[Arc<RwLock<TopLevelDef>>],
     unifier: &mut Unifier,
     primitives: &PrimitiveStore,
     expr: &ast::Expr<T>,
     // the key stores the type_var of this topleveldef::class, we only need this field here
-    locked: HashMap<DefinitionId, Vec<Type>, S>,
+    locked: HashMap<DefinitionId, Vec<Type>>,
+    type_var: Option<Type>,
 ) -> Result<TypeAnnotation, HashSet<String>> {
     let name_handle = |id: &StrRef,
                        unifier: &mut Unifier,
-                       locked: HashMap<DefinitionId, Vec<Type>, S>| {
+                       locked: HashMap<DefinitionId, Vec<Type>>| {
         if id == &"int32".into() {
             Ok(TypeAnnotation::Primitive(primitives.int32))
         } else if id == &"int64".into() {
@@ -97,24 +101,20 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
         } else if id == &"str".into() {
             Ok(TypeAnnotation::Primitive(primitives.str))
         } else if id == &"Exception".into() {
-            Ok(TypeAnnotation::CustomClass { id: PrimDef::Exception.id(), params: Vec::default() })
+            Ok(TypeAnnotation::CustomClass { id: DefinitionId(7), params: Vec::default() })
         } else if let Ok(obj_id) = resolver.get_identifier_def(*id) {
             let type_vars = {
-                let Some(top_level_def) = top_level_defs.get(obj_id.0) else {
+                let def_read = top_level_defs[obj_id.0].try_read();
-                    return Err(HashSet::from([format!(
-                        "NameError: name '{id}' is not defined (at {})",
-                        expr.location
-                    )]));
-                };
-                let def_read = top_level_def.try_read();
                 if let Some(def_read) = def_read {
                     if let TopLevelDef::Class { type_vars, .. } = &*def_read {
                         type_vars.clone()
                     } else {
-                        return Err(HashSet::from([format!(
+                        return Err(HashSet::from([
-                            "function cannot be used as a type (at {})",
+                            format!(
-                            expr.location
+                                "function cannot be used as a type (at {})",
-                        )]));
+                                expr.location
+                            ),
+                        ]))
                     }
                 } else {
                     locked.get(&obj_id).unwrap().clone()
@@ -122,29 +122,29 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
             };
             // check param number here
             if !type_vars.is_empty() {
-                return Err(HashSet::from([format!(
+                return Err(HashSet::from([
-                    "expect {} type variable parameter but got 0 (at {})",
+                    format!(
-                    type_vars.len(),
+                        "expect {} type variable parameter but got 0 (at {})",
-                    expr.location,
+                        type_vars.len(),
-                )]));
+                        expr.location,
+                    ),
+                ]))
             }
             Ok(TypeAnnotation::CustomClass { id: obj_id, params: vec![] })
         } else if let Ok(ty) = resolver.get_symbol_type(unifier, top_level_defs, primitives, *id) {
             if let TypeEnum::TVar { .. } = unifier.get_ty(ty).as_ref() {
-                let var = unifier.get_fresh_var(Some(*id), Some(expr.location)).ty;
+                let var = unifier.get_fresh_var(Some(*id), Some(expr.location)).0;
                 unifier.unify(var, ty).unwrap();
                 Ok(TypeAnnotation::TypeVar(ty))
             } else {
-                Err(HashSet::from([format!(
+                Err(HashSet::from([
-                    "`{}` is not a valid type annotation (at {})",
+                    format!("`{}` is not a valid type annotation (at {})", id, expr.location),
-                    id, expr.location
+                ]))
-                )]))
             }
         } else {
-            Err(HashSet::from([format!(
+            Err(HashSet::from([
-                "`{}` is not a valid type annotation (at {})",
+                format!("`{}` is not a valid type annotation (at {})", id, expr.location),
-                id, expr.location
+            ]))
-            )]))
         }
     };
 
@@ -152,26 +152,21 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
         |id: &StrRef,
          slice: &ast::Expr<T>,
          unifier: &mut Unifier,
-         mut locked: HashMap<DefinitionId, Vec<Type>, S>| {
+         mut locked: HashMap<DefinitionId, Vec<Type>>| {
-            if ["virtual".into(), "Generic".into(), "tuple".into(), "Option".into()].contains(id) {
+            if ["virtual".into(), "Generic".into(), "list".into(), "tuple".into(), "Option".into()].contains(id)
-                return Err(HashSet::from([format!(
+            {
-                    "keywords cannot be class name (at {})",
+                return Err(HashSet::from([
-                    expr.location
+                    format!("keywords cannot be class name (at {})", expr.location),
-                )]));
+                ]))
             }
             let obj_id = resolver.get_identifier_def(*id)?;
             let type_vars = {
-                let Some(top_level_def) = top_level_defs.get(obj_id.0) else {
+                let def_read = top_level_defs[obj_id.0].try_read();
-                    return Err(HashSet::from([format!(
-                        "NameError: name '{id}' is not defined (at {})",
-                        expr.location
-                    )]));
-                };
-                let def_read = top_level_def.try_read();
                 if let Some(def_read) = def_read {
                     let TopLevelDef::Class { type_vars, .. } = &*def_read else {
                         unreachable!("must be class here")
                     };
+
                     type_vars.clone()
                 } else {
                     locked.get(&obj_id).unwrap().clone()
@@ -185,16 +180,19 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                     vec![slice]
                 };
                 if type_vars.len() != params_ast.len() {
-                    return Err(HashSet::from([format!(
+                    return Err(HashSet::from([
-                        "expect {} type parameters but got {} (at {})",
+                        format!(
-                        type_vars.len(),
+                            "expect {} type parameters but got {} (at {})",
-                        params_ast.len(),
+                            type_vars.len(),
-                        params_ast[0].location,
+                            params_ast.len(),
-                    )]));
+                            params_ast[0].location,
+                        ),
+                    ]))
                 }
                 let result = params_ast
                     .iter()
-                    .map(|x| {
+                    .enumerate()
+                    .map(|(idx, x)| {
                         parse_ast_to_type_annotation_kinds(
                             resolver,
                             top_level_defs,
@@ -205,6 +203,7 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                                 locked.insert(obj_id, type_vars.clone());
                                 locked.clone()
                             },
+                            Some(type_vars[idx]),
                         )
                     })
                     .collect::<Result<Vec<_>, _>>()?;
@@ -219,7 +218,7 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                             "application of type vars to generic class is not currently supported (at {})",
                             params_ast[0].location
                         ),
-                    ]));
+                    ]))
                 }
             };
             Ok(TypeAnnotation::CustomClass { id: obj_id, params: param_type_infos })
@@ -240,6 +239,7 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                 primitives,
                 slice.as_ref(),
                 locked,
+                None,
             )?;
             if !matches!(def, TypeAnnotation::CustomClass { .. }) {
                 unreachable!("must be concretized custom class kind in the virtual")
@@ -247,6 +247,24 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
             Ok(TypeAnnotation::Virtual(def.into()))
         }
 
+        // list
+        ast::ExprKind::Subscript { value, slice, .. }
+            if {
+                matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"list".into())
+            } =>
+        {
+            let def_ann = parse_ast_to_type_annotation_kinds(
+                resolver,
+                top_level_defs,
+                unifier,
+                primitives,
+                slice.as_ref(),
+                locked,
+                None,
+            )?;
+            Ok(TypeAnnotation::List(def_ann.into()))
+        }
+
         // option
         ast::ExprKind::Subscript { value, slice, .. }
             if {
@@ -260,6 +278,7 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                 primitives,
                 slice.as_ref(),
                 locked,
+                None,
             )?;
             let id =
                 if let TypeEnum::TObj { obj_id, .. } = unifier.get_ty(primitives.option).as_ref() {
@@ -293,76 +312,54 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
                         primitives,
                         e,
                         locked.clone(),
+                        None,
                     )
                 })
                 .collect::<Result<Vec<_>, _>>()?;
             Ok(TypeAnnotation::Tuple(type_annotations))
         }
 
-        // Literal
-        ast::ExprKind::Subscript { value, slice, .. }
-            if {
-                matches!(&value.node, ast::ExprKind::Name { id, .. } if id == &"Literal".into())
-            } =>
-        {
-            let tup_elts = {
-                if let ast::ExprKind::Tuple { elts, .. } = &slice.node {
-                    elts.as_slice()
-                } else {
-                    std::slice::from_ref(slice.as_ref())
-                }
-            };
-            let type_annotations = tup_elts
-                .iter()
-                .map(|e| match &e.node {
-                    ast::ExprKind::Constant { value, .. } => {
-                        Ok(TypeAnnotation::Literal(vec![value.clone()]))
-                    }
-                    _ => parse_ast_to_type_annotation_kinds(
-                        resolver,
-                        top_level_defs,
-                        unifier,
-                        primitives,
-                        e,
-                        locked.clone(),
-                    ),
-                })
-                .collect::<Result<Vec<_>, _>>()?
-                .into_iter()
-                .flat_map(|type_ann| match type_ann {
-                    TypeAnnotation::Literal(values) => values,
-                    _ => unreachable!(),
-                })
-                .collect_vec();
-
-            if type_annotations.len() == 1 {
-                Ok(TypeAnnotation::Literal(type_annotations))
-            } else {
-                Err(HashSet::from([format!(
-                    "multiple literal bounds are currently unsupported (at {})",
-                    value.location
-                )]))
-            }
-        }
-
         // custom class
         ast::ExprKind::Subscript { value, slice, .. } => {
             if let ast::ExprKind::Name { id, .. } = &value.node {
                 class_name_handle(id, slice, unifier, locked)
             } else {
-                Err(HashSet::from([format!(
+                Err(HashSet::from([
-                    "unsupported expression type for class name (at {})",
+                    format!("unsupported expression type for class name (at {})", value.location)
-                    value.location
+                ]))
-                )]))
             }
         }
 
-        ast::ExprKind::Constant { value, .. } => Ok(TypeAnnotation::Literal(vec![value.clone()])),
+        ast::ExprKind::Constant { value, .. } => {
+            let type_var = type_var.expect("Expect type variable to be present");
 
-        _ => Err(HashSet::from([format!(
+            let ntv_ty_enum = unifier.get_ty_immutable(type_var);
-            "unsupported expression for type annotation (at {})",
+            let TypeEnum::TVar { range: underlying_ty, .. } = ntv_ty_enum.as_ref() else {
-            expr.location
+                unreachable!()
-        )])),
+            };
+            let underlying_ty = underlying_ty[0];
+
+            let value = SymbolValue::from_constant(value, underlying_ty, primitives, unifier)
+                .map_err(|err| HashSet::from([err]))?;
+
+            if matches!(value, SymbolValue::Str(_) | SymbolValue::Tuple(_) | SymbolValue::OptionSome(_)) {
+                return Err(HashSet::from([
+                    format!(
+                        "expression {value} is not allowed for constant type annotation (at {})",
+                        expr.location
+                    ),
+                ]))
+            }
+
+            Ok(TypeAnnotation::Constant {
+                ty: type_var,
+                value,
+            })
+        }
+
+        _ => Err(HashSet::from([
+            format!("unsupported expression for type annotation (at {})", expr.location),
+        ])),
     }
 }
 
@@ -372,9 +369,8 @@ pub fn parse_ast_to_type_annotation_kinds<T, S: std::hash::BuildHasher + Clone>(
 pub fn get_type_from_type_annotation_kinds(
     top_level_defs: &[Arc<RwLock<TopLevelDef>>],
     unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
     ann: &TypeAnnotation,
-    subst_list: &mut Option<Vec<Type>>,
+    subst_list: &mut Option<Vec<Type>>
 ) -> Result<Type, HashSet<String>> {
     match ann {
         TypeAnnotation::CustomClass { id: obj_id, params } => {
@@ -385,82 +381,50 @@ pub fn get_type_from_type_annotation_kinds(
             };
 
             if type_vars.len() != params.len() {
-                return Err(HashSet::from([format!(
+                return Err(HashSet::from([
-                    "unexpected number of type parameters: expected {} but got {}",
+                    format!(
-                    type_vars.len(),
+                        "unexpected number of type parameters: expected {} but got {}",
-                    params.len()
+                        type_vars.len(),
-                )]));
+                        params.len()
+                    ),
+                ]))
             }
 
-            let param_ty = params
+                    let param_ty = params
-                .iter()
+                        .iter()
-                .map(|x| {
+                        .map(|x| {
-                    get_type_from_type_annotation_kinds(
+                            get_type_from_type_annotation_kinds(
-                        top_level_defs,
+                                top_level_defs,
-                        unifier,
+                                unifier,
-                        primitives,
+                                x,
-                        x,
+                                subst_list
-                        subst_list,
+                            )
-                    )
+                        })
-                })
+                        .collect::<Result<Vec<_>, _>>()?;
-                .collect::<Result<Vec<_>, _>>()?;
 
-            let ty = if let Some(prim_def) = PrimDef::iter().find(|prim| prim.id() == *obj_id) {
+            let subst = {
-                // Primitive TopLevelDefs do not contain all fields that are present in their Type
+                // check for compatible range
-                // counterparts, so directly perform subst on the Type instead.
+                // TODO: if allow type var to be applied(now this disallowed in the parse_to_type_annotation), need more check
-
+                let mut result: HashMap<u32, Type> = HashMap::new();
-                let PrimDefDetails::PrimClass { get_ty_fn, .. } = prim_def.details() else {
+                for (tvar, p) in type_vars.iter().zip(param_ty) {
-                    unreachable!()
+                    match unifier.get_ty(*tvar).as_ref() {
-                };
+                        TypeEnum::TVar { id, range, fields: None, name, loc, is_const_generic: false } => {
-
+                            let ok: bool = {
-                let base_ty = get_ty_fn(primitives);
+                                // create a temp type var and unify to check compatibility
-                let params =
+                                p == *tvar || {
-                    if let TypeEnum::TObj { params, .. } = &*unifier.get_ty_immutable(base_ty) {
+                                    let temp = unifier.get_fresh_var_with_range(
-                        params.clone()
+                                        range.as_slice(),
-                    } else {
+                                        *name,
-                        unreachable!()
+                                        *loc,
-                    };
+                                    );
-
+                                    unifier.unify(temp.0, p).is_ok()
-                unifier
+                                }
-                    .subst(
+                            };
-                        get_ty_fn(primitives),
+                            if ok {
-                        &params
+                                result.insert(*id, p);
-                            .iter()
+                            } else {
-                            .zip(param_ty)
+                                return Err(HashSet::from([
-                            .map(|(obj_tv, param)| (*obj_tv.0, param))
+                                    format!(
-                            .collect(),
-                    )
-                    .unwrap_or(base_ty)
-            } else {
-                let subst = {
-                    // check for compatible range
-                    // TODO: if allow type var to be applied(now this disallowed in the parse_to_type_annotation), need more check
-                    let mut result = VarMap::new();
-                    for (tvar, p) in type_vars.iter().zip(param_ty) {
-                        match unifier.get_ty(*tvar).as_ref() {
-                            TypeEnum::TVar {
-                                id,
-                                range,
-                                fields: None,
-                                name,
-                                loc,
-                                is_const_generic: false,
-                            } => {
-                                let ok: bool = {
-                                    // create a temp type var and unify to check compatibility
-                                    p == *tvar || {
-                                        let temp = unifier.get_fresh_var_with_range(
-                                            range.as_slice(),
-                                            *name,
-                                            *loc,
-                                        );
-                                        unifier.unify(temp.ty, p).is_ok()
-                                    }
-                                };
-                                if ok {
-                                    result.insert(*id, p);
-                                } else {
-                                    return Err(HashSet::from([format!(
                                         "cannot apply type {} to type variable with id {:?}",
                                         unifier.internal_stringify(
                                             p,
@@ -469,104 +433,104 @@ pub fn get_type_from_type_annotation_kinds(
                                             &mut None
                                         ),
                                         *id
-                                    )]));
+                                    )
-                                }
+                                ]))
                             }
+                        }
 
-                            TypeEnum::TVar {
+                        TypeEnum::TVar { id, range, name, loc, is_const_generic: true, .. } => {
-                                id, range, name, loc, is_const_generic: true, ..
+                            let ty = range[0];
-                            } => {
+                            let ok: bool = {
-                                let ty = range[0];
+                                // create a temp type var and unify to check compatibility
-                                let ok: bool = {
+                                p == *tvar || {
-                                    // create a temp type var and unify to check compatibility
+                                    let temp = unifier.get_fresh_const_generic_var(
-                                    p == *tvar || {
+                                        ty,
-                                        let temp =
+                                        *name,
-                                            unifier.get_fresh_const_generic_var(ty, *name, *loc);
+                                        *loc,
-                                        unifier.unify(temp.ty, p).is_ok()
+                                    );
-                                    }
+                                    unifier.unify(temp.0, p).is_ok()
-                                };
+                                }
-                                if ok {
+                            };
-                                    result.insert(*id, p);
+                            if ok {
-                                } else {
+                                result.insert(*id, p);
-                                    return Err(HashSet::from([format!(
+                            } else {
+                                return Err(HashSet::from([
+                                    format!(
                                         "cannot apply type {} to type variable {}",
                                         unifier.stringify(p),
                                         name.unwrap_or_else(|| format!("typevar{id}").into()),
-                                    )]));
+                                    ),
-                                }
+                                ]))
                             }
-
-                            _ => unreachable!("must be generic type var"),
                         }
-                    }
-                    result
-                };
-                // Class Attributes keep a copy with Class Definition and are not added to objects
-                let mut tobj_fields = methods
-                    .iter()
-                    .map(|(name, ty, _)| {
-                        let subst_ty = unifier.subst(*ty, &subst).unwrap_or(*ty);
-                        // methods are immutable
-                        (*name, (subst_ty, false))
-                    })
-                    .collect::<HashMap<_, _>>();
-                tobj_fields.extend(fields.iter().map(|(name, ty, mutability)| {
-                    let subst_ty = unifier.subst(*ty, &subst).unwrap_or(*ty);
-                    (*name, (subst_ty, *mutability))
-                }));
-                let need_subst = !subst.is_empty();
-                let ty = unifier.add_ty(TypeEnum::TObj {
-                    obj_id: *obj_id,
-                    fields: tobj_fields,
-                    params: subst,
-                });
 
-                if need_subst {
+                        _ => unreachable!("must be generic type var"),
-                    if let Some(wl) = subst_list.as_mut() {
-                        wl.push(ty);
                     }
                 }
-
+                result
-                ty
             };
-
+            let mut tobj_fields = methods
+                .iter()
+                .map(|(name, ty, _)| {
+                    let subst_ty = unifier.subst(*ty, &subst).unwrap_or(*ty);
+                    // methods are immutable
+                    (*name, (subst_ty, false))
+                })
+                .collect::<HashMap<_, _>>();
+            tobj_fields.extend(fields.iter().map(|(name, ty, mutability)| {
+                let subst_ty = unifier.subst(*ty, &subst).unwrap_or(*ty);
+                (*name, (subst_ty, *mutability))
+            }));
+            let need_subst = !subst.is_empty();
+            let ty = unifier.add_ty(TypeEnum::TObj {
+                obj_id: *obj_id,
+                fields: tobj_fields,
+                params: subst,
+            });
+            if need_subst {
+                if let Some(wl) = subst_list.as_mut() {
+                    wl.push(ty);
+                }
+            }
             Ok(ty)
         }
         TypeAnnotation::Primitive(ty) | TypeAnnotation::TypeVar(ty) => Ok(*ty),
-        TypeAnnotation::Literal(values) => {
+        TypeAnnotation::Constant { ty, value, .. } => {
-            let values = values
+            let ty_enum = unifier.get_ty(*ty);
-                .iter()
+            let TypeEnum::TVar { range: ntv_underlying_ty, loc, is_const_generic: true, .. } = &*ty_enum else {
-                .map(SymbolValue::from_constant_inferred)
+                unreachable!("{} ({})", unifier.stringify(*ty), ty_enum.get_type_name());
-                .collect::<Result<Vec<_>, _>>()
+            };
-                .map_err(|err| HashSet::from([err]))?;
 
-            let var = unifier.get_fresh_literal(values, None);
+            let ty = ntv_underlying_ty[0];
+            let var = unifier.get_fresh_constant(value.clone(), ty, *loc);
             Ok(var)
         }
         TypeAnnotation::Virtual(ty) => {
             let ty = get_type_from_type_annotation_kinds(
                 top_level_defs,
                 unifier,
-                primitives,
                 ty.as_ref(),
-                subst_list,
+                subst_list
             )?;
             Ok(unifier.add_ty(TypeEnum::TVirtual { ty }))
         }
+        TypeAnnotation::List(ty) => {
+            let ty = get_type_from_type_annotation_kinds(
+                top_level_defs,
+                unifier,
+                ty.as_ref(),
+                subst_list
+            )?;
+            Ok(unifier.add_ty(TypeEnum::TList { ty }))
+        }
         TypeAnnotation::Tuple(tys) => {
             let tys = tys
                 .iter()
                 .map(|x| {
-                    get_type_from_type_annotation_kinds(
+                    get_type_from_type_annotation_kinds(top_level_defs, unifier, x, subst_list)
-                        top_level_defs,
-                        unifier,
-                        primitives,
-                        x,
-                        subst_list,
-                    )
                 })
                 .collect::<Result<Vec<_>, _>>()?;
-            Ok(unifier.add_ty(TypeEnum::TTuple { ty: tys, is_vararg_ctx: false }))
+            Ok(unifier.add_ty(TypeEnum::TTuple { ty: tys }))
         }
     }
 }
@@ -599,7 +563,7 @@ pub fn get_type_var_contained_in_type_annotation(ann: &TypeAnnotation) -> Vec<Ty
     let mut result: Vec<TypeAnnotation> = Vec::new();
     match ann {
         TypeAnnotation::TypeVar(..) => result.push(ann.clone()),
-        TypeAnnotation::Virtual(ann) => {
+        TypeAnnotation::Virtual(ann) | TypeAnnotation::List(ann) => {
             result.extend(get_type_var_contained_in_type_annotation(ann.as_ref()));
         }
         TypeAnnotation::CustomClass { params, .. } => {
@@ -612,7 +576,7 @@ pub fn get_type_var_contained_in_type_annotation(ann: &TypeAnnotation) -> Vec<Ty
                 result.extend(get_type_var_contained_in_type_annotation(a));
             }
         }
-        TypeAnnotation::Primitive(..) | TypeAnnotation::Literal { .. } => {}
+        TypeAnnotation::Primitive(..) | TypeAnnotation::Constant { .. } => {}
     }
     result
 }
@@ -633,14 +597,14 @@ pub fn check_overload_type_annotation_compatible(
             let (
                 TypeEnum::TVar { id: a, fields: None, .. },
                 TypeEnum::TVar { id: b, fields: None, .. },
-            ) = (a, b)
+            ) = (a, b) else {
-            else {
                 unreachable!("must be type var")
             };
 
             a == b
         }
-        (TypeAnnotation::Virtual(a), TypeAnnotation::Virtual(b)) => {
+        (TypeAnnotation::Virtual(a), TypeAnnotation::Virtual(b))
+        | (TypeAnnotation::List(a), TypeAnnotation::List(b)) => {
             check_overload_type_annotation_compatible(a.as_ref(), b.as_ref(), unifier)
         }
 

nac3core/src/typecheck/function_check.rs

@@ -1,24 +1,16 @@
-use std::{
+use crate::typecheck::typedef::TypeEnum;
-    collections::{HashMap, HashSet},
-    iter::once,
-};
 
-use nac3parser::ast::{
+use super::type_inferencer::Inferencer;
-    self, Constant, Expr, ExprKind,
+use super::typedef::Type;
-    Operator::{LShift, RShift},
+use nac3parser::ast::{self, Constant, Expr, ExprKind, Operator::{LShift, RShift}, Stmt, StmtKind, StrRef};
-    Stmt, StmtKind, StrRef,
+use std::{collections::HashSet, iter::once};
-};
-
-use super::{
-    type_inferencer::{DeclarationSource, IdentifierInfo, Inferencer},
-    typedef::{Type, TypeEnum},
-};
-use crate::toplevel::helper::PrimDef;
 
 impl<'a> Inferencer<'a> {
     fn should_have_value(&mut self, expr: &Expr<Option<Type>>) -> Result<(), HashSet<String>> {
         if matches!(expr.custom, Some(ty) if self.unifier.unioned(ty, self.primitives.none)) {
-            Err(HashSet::from([format!("Error at {}: cannot have value none", expr.location)]))
+            Err(HashSet::from([
+                format!("Error at {}: cannot have value none", expr.location),
+            ]))
         } else {
             Ok(())
         }
@@ -27,61 +19,45 @@ impl<'a> Inferencer<'a> {
     fn check_pattern(
         &mut self,
         pattern: &Expr<Option<Type>>,
-        defined_identifiers: &mut HashMap<StrRef, IdentifierInfo>,
+        defined_identifiers: &mut HashSet<StrRef>,
     ) -> Result<(), HashSet<String>> {
         match &pattern.node {
-            ExprKind::Name { id, .. } if id == &"none".into() => {
+            ExprKind::Name { id, .. } if id == &"none".into() => Err(HashSet::from([
-                Err(HashSet::from([format!("cannot assign to a `none` (at {})", pattern.location)]))
+                format!("cannot assign to a `none` (at {})", pattern.location),
-            }
+            ])),
             ExprKind::Name { id, .. } => {
-                // If `id` refers to a declared symbol, reject this assignment if it is used in the
+                if !defined_identifiers.contains(id) {
-                // context of an (implicit) global variable
+                    defined_identifiers.insert(*id);
-                if let Some(id_info) = defined_identifiers.get(id) {
-                    if matches!(
-                        id_info.source,
-                        DeclarationSource::Global { is_explicit: Some(false) }
-                    ) {
-                        return Err(HashSet::from([format!(
-                            "cannot access local variable '{id}' before it is declared (at {})",
-                            pattern.location
-                        )]));
-                    }
-                }
-
-                if !defined_identifiers.contains_key(id) {
-                    defined_identifiers.insert(*id, IdentifierInfo::default());
                 }
                 self.should_have_value(pattern)?;
                 Ok(())
             }
-            ExprKind::List { elts, .. } | ExprKind::Tuple { elts, .. } => {
+            ExprKind::Tuple { elts, .. } => {
                 for elt in elts {
                     self.check_pattern(elt, defined_identifiers)?;
                     self.should_have_value(elt)?;
                 }
                 Ok(())
             }
-            ExprKind::Starred { value, .. } => {
-                self.check_pattern(value, defined_identifiers)?;
-                self.should_have_value(value)?;
-                Ok(())
-            }
             ExprKind::Subscript { value, slice, .. } => {
                 self.check_expr(value, defined_identifiers)?;
                 self.should_have_value(value)?;
                 self.check_expr(slice, defined_identifiers)?;
                 if let TypeEnum::TTuple { .. } = &*self.unifier.get_ty(value.custom.unwrap()) {
-                    return Err(HashSet::from([format!(
+                    return Err(HashSet::from([
-                        "Error at {}: cannot assign to tuple element",
+                        format!(
-                        value.location
+                            "Error at {}: cannot assign to tuple element",
-                    )]));
+                            value.location
+                        ),
+                    ]))
                 }
                 Ok(())
             }
-            ExprKind::Constant { .. } => Err(HashSet::from([format!(
+            ExprKind::Constant { .. } => {
-                "cannot assign to a constant (at {})",
+                Err(HashSet::from([
-                pattern.location
+                    format!("cannot assign to a constant (at {})", pattern.location),
-            )])),
+                ]))
+            }
             _ => self.check_expr(pattern, defined_identifiers),
         }
     }
@@ -89,19 +65,18 @@ impl<'a> Inferencer<'a> {
     fn check_expr(
         &mut self,
         expr: &Expr<Option<Type>>,
-        defined_identifiers: &mut HashMap<StrRef, IdentifierInfo>,
+        defined_identifiers: &mut HashSet<StrRef>,
     ) -> Result<(), HashSet<String>> {
         // there are some cases where the custom field is None
         if let Some(ty) = &expr.custom {
-            if !matches!(&expr.node, ExprKind::Constant { value: Constant::Ellipsis, .. })
+            if !matches!(&expr.node, ExprKind::Constant { value: Constant::Ellipsis, .. }) && !self.unifier.is_concrete(*ty, &self.function_data.bound_variables) {
-                && !ty.obj_id(self.unifier).is_some_and(|id| id == PrimDef::List.id())
+                return Err(HashSet::from([
-                && !self.unifier.is_concrete(*ty, &self.function_data.bound_variables)
+                    format!(
-            {
+                        "expected concrete type at {} but got {}",
-                return Err(HashSet::from([format!(
+                        expr.location,
-                    "expected concrete type at {} but got {}",
+                        self.unifier.get_ty(*ty).get_type_name()
-                    expr.location,
+                    )
-                    self.unifier.get_ty(*ty).get_type_name()
+                ]))
-                )]));
             }
         }
         match &expr.node {
@@ -110,7 +85,7 @@ impl<'a> Inferencer<'a> {
                     return Ok(());
                 }
                 self.should_have_value(expr)?;
-                if !defined_identifiers.contains_key(id) {
+                if !defined_identifiers.contains(id) {
                     match self.function_data.resolver.get_symbol_type(
                         self.unifier,
                         &self.top_level.definitions.read(),
@@ -118,28 +93,15 @@ impl<'a> Inferencer<'a> {
                         *id,
                     ) {
                         Ok(_) => {
-                            let is_global = self.is_id_global(*id);
+                            self.defined_identifiers.insert(*id);
-
-                            defined_identifiers.insert(
-                                *id,
-                                IdentifierInfo {
-                                    source: match is_global {
-                                        Some(true) => {
-                                            DeclarationSource::Global { is_explicit: Some(false) }
-                                        }
-                                        Some(false) => {
-                                            DeclarationSource::Global { is_explicit: None }
-                                        }
-                                        None => DeclarationSource::Local,
-                                    },
-                                },
-                            );
                         }
                         Err(e) => {
-                            return Err(HashSet::from([format!(
+                            return Err(HashSet::from([
-                                "type error at identifier `{}` ({}) at {}",
+                                format!(
-                                id, e, expr.location
+                                    "type error at identifier `{}` ({}) at {}",
-                            )]))
+                                    id, e, expr.location
+                                )
+                            ]))
                         }
                     }
                 }
@@ -165,13 +127,17 @@ impl<'a> Inferencer<'a> {
                 // Check whether a bitwise shift has a negative RHS constant value
                 if *op == LShift || *op == RShift {
                     if let ExprKind::Constant { value, .. } = &right.node {
-                        let Constant::Int(rhs_val) = value else { unreachable!() };
+                        let Constant::Int(rhs_val) = value else {
+                            unreachable!()
+                        };
 
                         if *rhs_val < 0 {
-                            return Err(HashSet::from([format!(
+                            return Err(HashSet::from([
-                                "shift count is negative at {}",
+                                format!(
-                                right.location
+                                    "shift count is negative at {}",
-                            )]));
+                                    right.location
+                                ),
+                            ]))
                         }
                     }
                 }
@@ -206,7 +172,9 @@ impl<'a> Inferencer<'a> {
                 let mut defined_identifiers = defined_identifiers.clone();
                 for arg in &args.args {
                     // TODO: should we check the types here?
-                    defined_identifiers.entry(arg.node.arg).or_default();
+                    if !defined_identifiers.contains(&arg.node.arg) {
+                        defined_identifiers.insert(arg.node.arg);
+                    }
                 }
                 self.check_expr(body, &mut defined_identifiers)?;
             }
@@ -240,36 +208,11 @@ impl<'a> Inferencer<'a> {
         Ok(())
     }
 
-    /// Check that the return value is a non-`alloca` type, effectively only allowing primitive types.
-    ///
-    /// This is a workaround preventing the caller from using a variable `alloca`-ed in the body, which
-    /// is freed when the function returns.
-    fn check_return_value_ty(&mut self, ret_ty: Type) -> bool {
-        if cfg!(feature = "no-escape-analysis") {
-            true
-        } else {
-            match &*self.unifier.get_ty_immutable(ret_ty) {
-                TypeEnum::TObj { .. } => [
-                    self.primitives.int32,
-                    self.primitives.int64,
-                    self.primitives.uint32,
-                    self.primitives.uint64,
-                    self.primitives.float,
-                    self.primitives.bool,
-                ]
-                .iter()
-                .any(|allowed_ty| self.unifier.unioned(ret_ty, *allowed_ty)),
-                TypeEnum::TTuple { ty, .. } => ty.iter().all(|t| self.check_return_value_ty(*t)),
-                _ => false,
-            }
-        }
-    }
-
     // check statements for proper identifier def-use and return on all paths
     fn check_stmt(
         &mut self,
         stmt: &Stmt<Option<Type>>,
-        defined_identifiers: &mut HashMap<StrRef, IdentifierInfo>,
+        defined_identifiers: &mut HashSet<StrRef>,
     ) -> Result<bool, HashSet<String>> {
         match &stmt.node {
             StmtKind::For { target, iter, body, orelse, .. } => {
@@ -295,11 +238,9 @@ impl<'a> Inferencer<'a> {
                 let body_returned = self.check_block(body, &mut body_identifiers)?;
                 let orelse_returned = self.check_block(orelse, &mut orelse_identifiers)?;
 
-                for ident in body_identifiers.keys() {
+                for ident in &body_identifiers {
-                    if !defined_identifiers.contains_key(ident)
+                    if !defined_identifiers.contains(ident) && orelse_identifiers.contains(ident) {
-                        && orelse_identifiers.contains_key(ident)
+                        defined_identifiers.insert(*ident);
-                    {
-                        defined_identifiers.insert(*ident, IdentifierInfo::default());
                     }
                 }
                 Ok(body_returned && orelse_returned)
@@ -330,7 +271,7 @@ impl<'a> Inferencer<'a> {
                     let mut defined_identifiers = defined_identifiers.clone();
                     let ast::ExcepthandlerKind::ExceptHandler { name, body, .. } = &handler.node;
                     if let Some(name) = name {
-                        defined_identifiers.insert(*name, IdentifierInfo::default());
+                        defined_identifiers.insert(*name);
                     }
                     self.check_block(body, &mut defined_identifiers)?;
                 }
@@ -361,30 +302,6 @@ impl<'a> Inferencer<'a> {
                 if let Some(value) = value {
                     self.check_expr(value, defined_identifiers)?;
                     self.should_have_value(value)?;
-
-                    // Check that the return value is a non-`alloca` type, effectively only allowing primitive types.
-                    // This is a workaround preventing the caller from using a variable `alloca`-ed in the body, which
-                    // is freed when the function returns.
-                    if let Some(ret_ty) = value.custom {
-                        // Explicitly allow ellipsis as a return value, as the type of the ellipsis is contextually
-                        // inferred and just generates an unconditional assertion
-                        if matches!(
-                            value.node,
-                            ExprKind::Constant { value: Constant::Ellipsis, .. }
-                        ) {
-                            return Ok(true);
-                        }
-
-                        if !self.check_return_value_ty(ret_ty) {
-                            return Err(HashSet::from([
-                                format!(
-                                    "return value of type {} must be a primitive or a tuple of primitives at {}",
-                                    self.unifier.stringify(ret_ty),
-                                    value.location,
-                                ),
-                            ]));
-                        }
-                    }
                 }
                 Ok(true)
             }
@@ -394,44 +311,6 @@ impl<'a> Inferencer<'a> {
                 }
                 Ok(true)
             }
-            StmtKind::Global { names, .. } => {
-                for id in names {
-                    if let Some(id_info) = defined_identifiers.get(id) {
-                        if id_info.source == DeclarationSource::Local {
-                            return Err(HashSet::from([format!(
-                                "name '{id}' is referenced prior to global declaration at {}",
-                                stmt.location,
-                            )]));
-                        }
-
-                        continue;
-                    }
-
-                    match self.function_data.resolver.get_symbol_type(
-                        self.unifier,
-                        &self.top_level.definitions.read(),
-                        self.primitives,
-                        *id,
-                    ) {
-                        Ok(_) => {
-                            defined_identifiers.insert(
-                                *id,
-                                IdentifierInfo {
-                                    source: DeclarationSource::Global { is_explicit: Some(true) },
-                                },
-                            );
-                        }
-                        Err(e) => {
-                            return Err(HashSet::from([format!(
-                                "type error at identifier `{}` ({}) at {}",
-                                id, e, stmt.location
-                            )]))
-                        }
-                    }
-                }
-
-                Ok(false)
-            }
             // break, raise, etc.
             _ => Ok(false),
         }
@@ -440,12 +319,12 @@ impl<'a> Inferencer<'a> {
     pub fn check_block(
         &mut self,
         block: &[Stmt<Option<Type>>],
-        defined_identifiers: &mut HashMap<StrRef, IdentifierInfo>,
+        defined_identifiers: &mut HashSet<StrRef>,
     ) -> Result<bool, HashSet<String>> {
         let mut ret = false;
         for stmt in block {
             if ret {
-                eprintln!("warning: dead code at {}\n", stmt.location);
+                eprintln!("warning: dead code at {:?}\n", stmt.location);
             }
             if self.check_stmt(stmt, defined_identifiers)? {
                 ret = true;

nac3core/src/typecheck/magic_methods.rs

@@ -1,154 +1,73 @@
-use std::{cmp::max, collections::HashMap, rc::Rc};
+use crate::typecheck::{
-
-use itertools::{iproduct, Itertools};
-use strum::IntoEnumIterator;
-
-use nac3parser::ast::{Cmpop, Operator, StrRef, Unaryop};
-
-use super::{
     type_inferencer::*,
-    typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
+    typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier},
-};
-use crate::{
-    symbol_resolver::SymbolValue,
-    toplevel::{
-        helper::PrimDef,
-        numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
-    },
 };
+use nac3parser::ast::StrRef;
+use nac3parser::ast::{Cmpop, Operator, Unaryop};
+use std::collections::HashMap;
+use std::rc::Rc;
 
-/// The variant of a binary operator.
+#[must_use]
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub fn binop_name(op: &Operator) -> &'static str {
-pub enum BinopVariant {
-    /// The normal variant.
-    /// For addition, it would be `+`.
-    Normal,
-    /// The "Augmented Assigning Operator" variant.
-    /// For addition, it would be `+=`.
-    AugAssign,
-}
-
-/// A binary operator with its variant.
-#[derive(Debug, Clone, Copy)]
-pub struct Binop {
-    /// The base [`Operator`] of this binary operator.
-    pub base: Operator,
-    /// The variant of this binary operator.
-    pub variant: BinopVariant,
-}
-
-impl Binop {
-    /// Make a [`Binop`] of the normal variant from an [`Operator`].
-    #[must_use]
-    pub fn normal(base: Operator) -> Self {
-        Binop { base, variant: BinopVariant::Normal }
-    }
-
-    /// Make a [`Binop`] of the aug assign variant from an [`Operator`].
-    #[must_use]
-    pub fn aug_assign(base: Operator) -> Self {
-        Binop { base, variant: BinopVariant::AugAssign }
-    }
-}
-
-/// Details about an operator (unary, binary, etc...) in Python
-#[derive(Debug, Clone, Copy)]
-pub struct OpInfo {
-    /// The method name of the binary operator.
-    /// For addition, this would be `__add__`, and `__iadd__` if
-    /// it is the augmented assigning variant.
-    pub method_name: &'static str,
-    /// The symbol of the binary operator.
-    /// For addition, this would be `+`, and `+=` if
-    /// it is the augmented assigning variant.
-    pub symbol: &'static str,
-}
-
-/// Helper macro to conveniently build an [`OpInfo`].
-///
-/// Example usage: `make_info("add", "+")` generates `OpInfo { name: "__add__", symbol: "+" }`
-macro_rules! make_op_info {
-    ($name:expr, $symbol:expr) => {
-        OpInfo { method_name: concat!("__", $name, "__"), symbol: $symbol }
-    };
-}
-
-pub trait HasOpInfo {
-    fn op_info(&self) -> OpInfo;
-}
-
-fn try_get_cmpop_info(op: Cmpop) -> Option<OpInfo> {
     match op {
-        Cmpop::Lt => Some(make_op_info!("lt", "<")),
+        Operator::Add => "__add__",
-        Cmpop::LtE => Some(make_op_info!("le", "<=")),
+        Operator::Sub => "__sub__",
-        Cmpop::Gt => Some(make_op_info!("gt", ">")),
+        Operator::Div => "__truediv__",
-        Cmpop::GtE => Some(make_op_info!("ge", ">=")),
+        Operator::Mod => "__mod__",
-        Cmpop::Eq => Some(make_op_info!("eq", "==")),
+        Operator::Mult => "__mul__",
-        Cmpop::NotEq => Some(make_op_info!("ne", "!=")),
+        Operator::Pow => "__pow__",
+        Operator::BitOr => "__or__",
+        Operator::BitXor => "__xor__",
+        Operator::BitAnd => "__and__",
+        Operator::LShift => "__lshift__",
+        Operator::RShift => "__rshift__",
+        Operator::FloorDiv => "__floordiv__",
+        Operator::MatMult => "__matmul__",
+    }
+}
+
+#[must_use]
+pub fn binop_assign_name(op: &Operator) -> &'static str {
+    match op {
+        Operator::Add => "__iadd__",
+        Operator::Sub => "__isub__",
+        Operator::Div => "__itruediv__",
+        Operator::Mod => "__imod__",
+        Operator::Mult => "__imul__",
+        Operator::Pow => "__ipow__",
+        Operator::BitOr => "__ior__",
+        Operator::BitXor => "__ixor__",
+        Operator::BitAnd => "__iand__",
+        Operator::LShift => "__ilshift__",
+        Operator::RShift => "__irshift__",
+        Operator::FloorDiv => "__ifloordiv__",
+        Operator::MatMult => "__imatmul__",
+    }
+}
+
+#[must_use]
+pub fn unaryop_name(op: &Unaryop) -> &'static str {
+    match op {
+        Unaryop::UAdd => "__pos__",
+        Unaryop::USub => "__neg__",
+        Unaryop::Not => "__not__",
+        Unaryop::Invert => "__inv__",
+    }
+}
+
+#[must_use]
+pub fn comparison_name(op: &Cmpop) -> Option<&'static str> {
+    match op {
+        Cmpop::Lt => Some("__lt__"),
+        Cmpop::LtE => Some("__le__"),
+        Cmpop::Gt => Some("__gt__"),
+        Cmpop::GtE => Some("__ge__"),
+        Cmpop::Eq => Some("__eq__"),
+        Cmpop::NotEq => Some("__ne__"),
         _ => None,
     }
 }
 
-impl OpInfo {
-    #[must_use]
-    pub fn supports_cmpop(op: Cmpop) -> bool {
-        try_get_cmpop_info(op).is_some()
-    }
-}
-
-impl HasOpInfo for Cmpop {
-    fn op_info(&self) -> OpInfo {
-        try_get_cmpop_info(*self).expect("{self:?} is not supported")
-    }
-}
-
-impl HasOpInfo for Binop {
-    fn op_info(&self) -> OpInfo {
-        // Helper macro to generate both the normal variant [`OpInfo`] and the
-        // augmented assigning variant [`OpInfo`] for a binary operator conveniently.
-        macro_rules! info {
-            ($name:literal, $symbol:literal) => {
-                (
-                    make_op_info!($name, $symbol),
-                    make_op_info!(concat!("i", $name), concat!($symbol, "=")),
-                )
-            };
-        }
-
-        let (normal_variant, aug_assign_variant) = match self.base {
-            Operator::Add => info!("add", "+"),
-            Operator::Sub => info!("sub", "-"),
-            Operator::Div => info!("truediv", "/"),
-            Operator::Mod => info!("mod", "%"),
-            Operator::Mult => info!("mul", "*"),
-            Operator::Pow => info!("pow", "**"),
-            Operator::BitOr => info!("or", "|"),
-            Operator::BitXor => info!("xor", "^"),
-            Operator::BitAnd => info!("and", "&"),
-            Operator::LShift => info!("lshift", "<<"),
-            Operator::RShift => info!("rshift", ">>"),
-            Operator::FloorDiv => info!("floordiv", "//"),
-            Operator::MatMult => info!("matmul", "@"),
-        };
-
-        match self.variant {
-            BinopVariant::Normal => normal_variant,
-            BinopVariant::AugAssign => aug_assign_variant,
-        }
-    }
-}
-
-impl HasOpInfo for Unaryop {
-    fn op_info(&self) -> OpInfo {
-        match self {
-            Unaryop::UAdd => make_op_info!("pos", "+"),
-            Unaryop::USub => make_op_info!("neg", "-"),
-            Unaryop::Not => make_op_info!("not", "not"), // i.e., `not False`, so the symbol is just `not`.
-            Unaryop::Invert => make_op_info!("inv", "~"),
-        }
-    }
-}
-
 pub(super) fn with_fields<F>(unifier: &mut Unifier, ty: Type, f: F)
 where
     F: FnOnce(&mut Unifier, &mut HashMap<StrRef, (Type, bool)>),
@@ -171,28 +90,40 @@ pub fn impl_binop(
     _store: &PrimitiveStore,
     ty: Type,
     other_ty: &[Type],
-    ret_ty: Option<Type>,
+    ret_ty: Type,
     ops: &[Operator],
 ) {
     with_fields(unifier, ty, |unifier, fields| {
         let (other_ty, other_var_id) = if other_ty.len() == 1 {
             (other_ty[0], None)
         } else {
-            let tvar = unifier.get_fresh_var_with_range(other_ty, Some("N".into()), None);
+            let (ty, var_id) = unifier.get_fresh_var_with_range(other_ty, Some("N".into()), None);
-            (tvar.ty, Some(tvar.id))
+            (ty, Some(var_id))
         };
 
         let function_vars = if let Some(var_id) = other_var_id {
-            vec![(var_id, other_ty)].into_iter().collect::<VarMap>()
+            vec![(var_id, other_ty)].into_iter().collect::<HashMap<_, _>>()
         } else {
-            VarMap::new()
+            HashMap::new()
         };
 
-        let ret_ty = ret_ty.unwrap_or_else(|| unifier.get_fresh_var(None, None).ty);
+        for op in ops {
-
+            fields.insert(binop_name(op).into(), {
-        for (base_op, variant) in iproduct!(ops, [BinopVariant::Normal, BinopVariant::AugAssign]) {
+                (
-            let op = Binop { base: *base_op, variant };
+                    unifier.add_ty(TypeEnum::TFunc(FunSignature {
-            fields.insert(op.op_info().method_name.into(), {
+                        ret: ret_ty,
+                        vars: function_vars.clone(),
+                        args: vec![FuncArg {
+                            ty: other_ty,
+                            default_value: None,
+                            name: "other".into(),
+                        }],
+                    })),
+                    false,
+                )
+            });
+
+            fields.insert(binop_assign_name(op).into(), {
                 (
                     unifier.add_ty(TypeEnum::TFunc(FunSignature {
                         ret: ret_ty,
@@ -201,7 +132,6 @@ pub fn impl_binop(
                             ty: other_ty,
                             default_value: None,
                             name: "other".into(),
-                            is_vararg: false,
                         }],
                     })),
                     false,
@@ -211,17 +141,15 @@ pub fn impl_binop(
     });
 }
 
-pub fn impl_unaryop(unifier: &mut Unifier, ty: Type, ret_ty: Option<Type>, ops: &[Unaryop]) {
+pub fn impl_unaryop(unifier: &mut Unifier, ty: Type, ret_ty: Type, ops: &[Unaryop]) {
     with_fields(unifier, ty, |unifier, fields| {
-        let ret_ty = ret_ty.unwrap_or_else(|| unifier.get_fresh_var(None, None).ty);
-
         for op in ops {
             fields.insert(
-                op.op_info().method_name.into(),
+                unaryop_name(op).into(),
                 (
                     unifier.add_ty(TypeEnum::TFunc(FunSignature {
                         ret: ret_ty,
-                        vars: VarMap::new(),
+                        vars: HashMap::new(),
                         args: vec![],
                     })),
                     false,
@@ -233,40 +161,23 @@ pub fn impl_unaryop(unifier: &mut Unifier, ty: Type, ret_ty: Option<Type>, ops:
 
 pub fn impl_cmpop(
     unifier: &mut Unifier,
-    _store: &PrimitiveStore,
+    store: &PrimitiveStore,
     ty: Type,
-    other_ty: &[Type],
+    other_ty: Type,
     ops: &[Cmpop],
-    ret_ty: Option<Type>,
 ) {
     with_fields(unifier, ty, |unifier, fields| {
-        let (other_ty, other_var_id) = if other_ty.len() == 1 {
-            (other_ty[0], None)
-        } else {
-            let tvar = unifier.get_fresh_var_with_range(other_ty, Some("N".into()), None);
-            (tvar.ty, Some(tvar.id))
-        };
-
-        let function_vars = if let Some(var_id) = other_var_id {
-            vec![(var_id, other_ty)].into_iter().collect::<VarMap>()
-        } else {
-            VarMap::new()
-        };
-
-        let ret_ty = ret_ty.unwrap_or_else(|| unifier.get_fresh_var(None, None).ty);
-
         for op in ops {
             fields.insert(
-                op.op_info().method_name.into(),
+                comparison_name(op).unwrap().into(),
                 (
                     unifier.add_ty(TypeEnum::TFunc(FunSignature {
-                        ret: ret_ty,
+                        ret: store.bool,
-                        vars: function_vars.clone(),
+                        vars: HashMap::new(),
                         args: vec![FuncArg {
                             ty: other_ty,
                             default_value: None,
                             name: "other".into(),
-                            is_vararg: false,
                         }],
                     })),
                     false,
@@ -282,7 +193,7 @@ pub fn impl_basic_arithmetic(
     store: &PrimitiveStore,
     ty: Type,
     other_ty: &[Type],
-    ret_ty: Option<Type>,
+    ret_ty: Type,
 ) {
     impl_binop(
         unifier,
@@ -300,7 +211,7 @@ pub fn impl_pow(
     store: &PrimitiveStore,
     ty: Type,
     other_ty: &[Type],
-    ret_ty: Option<Type>,
+    ret_ty: Type,
 ) {
     impl_binop(unifier, store, ty, other_ty, ret_ty, &[Operator::Pow]);
 }
@@ -312,32 +223,19 @@ pub fn impl_bitwise_arithmetic(unifier: &mut Unifier, store: &PrimitiveStore, ty
         store,
         ty,
         &[ty],
-        Some(ty),
+        ty,
         &[Operator::BitAnd, Operator::BitOr, Operator::BitXor],
     );
 }
 
 /// `LShift`, `RShift`
 pub fn impl_bitwise_shift(unifier: &mut Unifier, store: &PrimitiveStore, ty: Type) {
-    impl_binop(
+    impl_binop(unifier, store, ty, &[store.int32, store.uint32], ty, &[Operator::LShift, Operator::RShift]);
-        unifier,
-        store,
-        ty,
-        &[store.int32, store.uint32],
-        Some(ty),
-        &[Operator::LShift, Operator::RShift],
-    );
 }
 
 /// `Div`
-pub fn impl_div(
+pub fn impl_div(unifier: &mut Unifier, store: &PrimitiveStore, ty: Type, other_ty: &[Type]) {
-    unifier: &mut Unifier,
+    impl_binop(unifier, store, ty, other_ty, store.float, &[Operator::Div]);
-    store: &PrimitiveStore,
-    ty: Type,
-    other_ty: &[Type],
-    ret_ty: Option<Type>,
-) {
-    impl_binop(unifier, store, ty, other_ty, ret_ty, &[Operator::Div]);
 }
 
 /// `FloorDiv`
@@ -346,7 +244,7 @@ pub fn impl_floordiv(
     store: &PrimitiveStore,
     ty: Type,
     other_ty: &[Type],
-    ret_ty: Option<Type>,
+    ret_ty: Type,
 ) {
     impl_binop(unifier, store, ty, other_ty, ret_ty, &[Operator::FloorDiv]);
 }
@@ -357,340 +255,40 @@ pub fn impl_mod(
     store: &PrimitiveStore,
     ty: Type,
     other_ty: &[Type],
-    ret_ty: Option<Type>,
+    ret_ty: Type,
 ) {
     impl_binop(unifier, store, ty, other_ty, ret_ty, &[Operator::Mod]);
 }
 
-/// [`Operator::MatMult`]
-pub fn impl_matmul(
-    unifier: &mut Unifier,
-    store: &PrimitiveStore,
-    ty: Type,
-    other_ty: &[Type],
-    ret_ty: Option<Type>,
-) {
-    impl_binop(unifier, store, ty, other_ty, ret_ty, &[Operator::MatMult]);
-}
-
 /// `UAdd`, `USub`
-pub fn impl_sign(unifier: &mut Unifier, _store: &PrimitiveStore, ty: Type, ret_ty: Option<Type>) {
+pub fn impl_sign(unifier: &mut Unifier, _store: &PrimitiveStore, ty: Type) {
-    impl_unaryop(unifier, ty, ret_ty, &[Unaryop::UAdd, Unaryop::USub]);
+    impl_unaryop(unifier, ty, ty, &[Unaryop::UAdd, Unaryop::USub]);
 }
 
 /// `Invert`
-pub fn impl_invert(unifier: &mut Unifier, _store: &PrimitiveStore, ty: Type, ret_ty: Option<Type>) {
+pub fn impl_invert(unifier: &mut Unifier, _store: &PrimitiveStore, ty: Type) {
-    impl_unaryop(unifier, ty, ret_ty, &[Unaryop::Invert]);
+    impl_unaryop(unifier, ty, ty, &[Unaryop::Invert]);
 }
 
 /// `Not`
-pub fn impl_not(unifier: &mut Unifier, _store: &PrimitiveStore, ty: Type, ret_ty: Option<Type>) {
+pub fn impl_not(unifier: &mut Unifier, store: &PrimitiveStore, ty: Type) {
-    impl_unaryop(unifier, ty, ret_ty, &[Unaryop::Not]);
+    impl_unaryop(unifier, ty, store.bool, &[Unaryop::Not]);
 }
 
 /// `Lt`, `LtE`, `Gt`, `GtE`
-pub fn impl_comparison(
+pub fn impl_comparison(unifier: &mut Unifier, store: &PrimitiveStore, ty: Type, other_ty: Type) {
-    unifier: &mut Unifier,
-    store: &PrimitiveStore,
-    ty: Type,
-    other_ty: &[Type],
-    ret_ty: Option<Type>,
-) {
     impl_cmpop(
         unifier,
         store,
         ty,
         other_ty,
         &[Cmpop::Lt, Cmpop::Gt, Cmpop::LtE, Cmpop::GtE],
-        ret_ty,
     );
 }
 
 /// `Eq`, `NotEq`
-pub fn impl_eq(
+pub fn impl_eq(unifier: &mut Unifier, store: &PrimitiveStore, ty: Type) {
-    unifier: &mut Unifier,
+    impl_cmpop(unifier, store, ty, ty, &[Cmpop::Eq, Cmpop::NotEq]);
-    store: &PrimitiveStore,
-    ty: Type,
-    other_ty: &[Type],
-    ret_ty: Option<Type>,
-) {
-    impl_cmpop(unifier, store, ty, other_ty, &[Cmpop::Eq, Cmpop::NotEq], ret_ty);
-}
-
-/// Returns the expected return type of binary operations with at least one `ndarray` operand.
-pub fn typeof_ndarray_broadcast(
-    unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
-    left: Type,
-    right: Type,
-) -> Result<Type, String> {
-    let is_left_ndarray = left.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-    let is_right_ndarray = right.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-
-    assert!(is_left_ndarray || is_right_ndarray);
-
-    if is_left_ndarray && is_right_ndarray {
-        // Perform broadcasting on two ndarray operands.
-
-        let (left_ty_dtype, left_ty_ndims) = unpack_ndarray_var_tys(unifier, left);
-        let (right_ty_dtype, right_ty_ndims) = unpack_ndarray_var_tys(unifier, right);
-
-        assert!(unifier.unioned(left_ty_dtype, right_ty_dtype));
-
-        let left_ty_ndims = match &*unifier.get_ty_immutable(left_ty_ndims) {
-            TypeEnum::TLiteral { values, .. } => values.clone(),
-            _ => unreachable!(),
-        };
-        let right_ty_ndims = match &*unifier.get_ty_immutable(right_ty_ndims) {
-            TypeEnum::TLiteral { values, .. } => values.clone(),
-            _ => unreachable!(),
-        };
-
-        let res_ndims = left_ty_ndims
-            .into_iter()
-            .cartesian_product(right_ty_ndims)
-            .map(|(left, right)| {
-                let left_val = u64::try_from(left).unwrap();
-                let right_val = u64::try_from(right).unwrap();
-
-                max(left_val, right_val)
-            })
-            .unique()
-            .map(SymbolValue::U64)
-            .collect_vec();
-        let res_ndims = unifier.get_fresh_literal(res_ndims, None);
-
-        Ok(make_ndarray_ty(unifier, primitives, Some(left_ty_dtype), Some(res_ndims)))
-    } else {
-        let (ndarray_ty, scalar_ty) = if is_left_ndarray { (left, right) } else { (right, left) };
-
-        let (ndarray_ty_dtype, _) = unpack_ndarray_var_tys(unifier, ndarray_ty);
-
-        if unifier.unioned(ndarray_ty_dtype, scalar_ty) {
-            Ok(ndarray_ty)
-        } else {
-            let (expected_ty, actual_ty) = if is_left_ndarray {
-                (ndarray_ty_dtype, scalar_ty)
-            } else {
-                (scalar_ty, ndarray_ty_dtype)
-            };
-
-            Err(format!(
-                "Expected right-hand side operand to be {}, got {}",
-                unifier.stringify(expected_ty),
-                unifier.stringify(actual_ty),
-            ))
-        }
-    }
-}
-
-/// Returns the return type given a binary operator and its primitive operands.
-pub fn typeof_binop(
-    unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
-    op: Operator,
-    lhs: Type,
-    rhs: Type,
-) -> Result<Option<Type>, String> {
-    let op = Binop { base: op, variant: BinopVariant::Normal };
-
-    let is_left_list = lhs.obj_id(unifier).is_some_and(|id| id == PrimDef::List.id());
-    let is_right_list = rhs.obj_id(unifier).is_some_and(|id| id == PrimDef::List.id());
-    let is_left_ndarray = lhs.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-    let is_right_ndarray = rhs.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-
-    Ok(Some(match op.base {
-        Operator::Add | Operator::Sub | Operator::Mult | Operator::Mod | Operator::FloorDiv => {
-            if is_left_list || is_right_list {
-                if ![Operator::Add, Operator::Mult].contains(&op.base) {
-                    return Err(format!(
-                        "Binary operator {} not supported for list",
-                        op.op_info().symbol
-                    ));
-                }
-
-                if is_left_list {
-                    lhs
-                } else {
-                    rhs
-                }
-            } else if is_left_ndarray || is_right_ndarray {
-                typeof_ndarray_broadcast(unifier, primitives, lhs, rhs)?
-            } else if unifier.unioned(lhs, rhs) {
-                lhs
-            } else {
-                return Ok(None);
-            }
-        }
-
-        Operator::MatMult => {
-            // NOTE: NumPy matmul's LHS and RHS must both be ndarrays. Scalars are not allowed.
-            match (&*unifier.get_ty(lhs), &*unifier.get_ty(rhs)) {
-                (
-                    TypeEnum::TObj { obj_id: lhs_obj_id, .. },
-                    TypeEnum::TObj { obj_id: rhs_obj_id, .. },
-                ) if *lhs_obj_id == primitives.ndarray.obj_id(unifier).unwrap()
-                    && *rhs_obj_id == primitives.ndarray.obj_id(unifier).unwrap() =>
-                {
-                    // LHS and RHS have valid types
-                }
-                _ => {
-                    let lhs_str = unifier.stringify(lhs);
-                    let rhs_str = unifier.stringify(rhs);
-                    return Err(format!("ndarray.__matmul__ only accepts ndarray operands, but left operand has type {lhs_str}, and right operand has type {rhs_str}"));
-                }
-            }
-
-            let (_, lhs_ndims) = unpack_ndarray_var_tys(unifier, lhs);
-            let lhs_ndims = match &*unifier.get_ty_immutable(lhs_ndims) {
-                TypeEnum::TLiteral { values, .. } => {
-                    assert_eq!(values.len(), 1);
-                    u64::try_from(values[0].clone()).unwrap()
-                }
-                _ => unreachable!(),
-            };
-            let (_, rhs_ndims) = unpack_ndarray_var_tys(unifier, rhs);
-            let rhs_ndims = match &*unifier.get_ty_immutable(rhs_ndims) {
-                TypeEnum::TLiteral { values, .. } => {
-                    assert_eq!(values.len(), 1);
-                    u64::try_from(values[0].clone()).unwrap()
-                }
-                _ => unreachable!(),
-            };
-
-            match (lhs_ndims, rhs_ndims) {
-                (2, 2) => typeof_ndarray_broadcast(unifier, primitives, lhs, rhs)?,
-                (lhs, rhs) if lhs == 0 || rhs == 0 => {
-                    return Err(format!(
-                    "Input operand {} does not have enough dimensions (has {lhs}, requires {rhs})",
-                    u8::from(rhs == 0)
-                ))
-                }
-                (lhs, rhs) => {
-                    return Err(format!(
-                        "ndarray.__matmul__ on {lhs}D and {rhs}D operands not supported"
-                    ))
-                }
-            }
-        }
-
-        Operator::Div => {
-            if is_left_ndarray || is_right_ndarray {
-                typeof_ndarray_broadcast(unifier, primitives, lhs, rhs)?
-            } else if unifier.unioned(lhs, rhs) {
-                primitives.float
-            } else {
-                return Ok(None);
-            }
-        }
-
-        Operator::Pow => {
-            if is_left_ndarray || is_right_ndarray {
-                typeof_ndarray_broadcast(unifier, primitives, lhs, rhs)?
-            } else if [
-                primitives.int32,
-                primitives.int64,
-                primitives.uint32,
-                primitives.uint64,
-                primitives.float,
-            ]
-            .into_iter()
-            .any(|ty| unifier.unioned(lhs, ty))
-            {
-                lhs
-            } else {
-                return Ok(None);
-            }
-        }
-
-        Operator::LShift | Operator::RShift => lhs,
-        Operator::BitOr | Operator::BitXor | Operator::BitAnd => {
-            if unifier.unioned(lhs, rhs) {
-                lhs
-            } else {
-                return Ok(None);
-            }
-        }
-    }))
-}
-
-pub fn typeof_unaryop(
-    unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
-    op: Unaryop,
-    operand: Type,
-) -> Result<Option<Type>, String> {
-    let operand_obj_id = operand.obj_id(unifier);
-
-    if op == Unaryop::Not
-        && operand_obj_id.is_some_and(|id| id == primitives.ndarray.obj_id(unifier).unwrap())
-    {
-        return Err(
-            "The truth value of an array with more than one element is ambiguous".to_string()
-        );
-    }
-
-    Ok(match op {
-        Unaryop::Not => match operand_obj_id {
-            Some(v) if v == PrimDef::NDArray.id() => Some(operand),
-            Some(_) => Some(primitives.bool),
-            _ => None,
-        },
-
-        Unaryop::Invert => {
-            if operand_obj_id.is_some_and(|id| id == PrimDef::Bool.id()) {
-                Some(primitives.int32)
-            } else if operand_obj_id.is_some_and(|id| PrimDef::iter().any(|prim| id == prim.id())) {
-                Some(operand)
-            } else {
-                None
-            }
-        }
-
-        Unaryop::UAdd | Unaryop::USub => {
-            if operand_obj_id.is_some_and(|id| id == PrimDef::NDArray.id()) {
-                let (dtype, _) = unpack_ndarray_var_tys(unifier, operand);
-                if dtype.obj_id(unifier).is_some_and(|id| id == PrimDef::Bool.id()) {
-                    return Err(if op == Unaryop::UAdd {
-                        "The ufunc 'positive' cannot be applied to ndarray[bool, N]".to_string()
-                    } else {
-                        "The numpy boolean negative, the `-` operator, is not supported, use the `~` operator function instead.".to_string()
-                    });
-                }
-
-                Some(operand)
-            } else if operand_obj_id.is_some_and(|id| id == PrimDef::Bool.id()) {
-                Some(primitives.int32)
-            } else if operand_obj_id.is_some_and(|id| PrimDef::iter().any(|prim| id == prim.id())) {
-                Some(operand)
-            } else {
-                None
-            }
-        }
-    })
-}
-
-/// Returns the return type given a comparison operator and its primitive operands.
-pub fn typeof_cmpop(
-    unifier: &mut Unifier,
-    primitives: &PrimitiveStore,
-    _op: Cmpop,
-    lhs: Type,
-    rhs: Type,
-) -> Result<Option<Type>, String> {
-    let is_left_ndarray = lhs.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-    let is_right_ndarray = rhs.obj_id(unifier).is_some_and(|id| id == PrimDef::NDArray.id());
-
-    Ok(Some(if is_left_ndarray || is_right_ndarray {
-        let brd = typeof_ndarray_broadcast(unifier, primitives, lhs, rhs)?;
-        let (_, ndims) = unpack_ndarray_var_tys(unifier, brd);
-
-        make_ndarray_ty(unifier, primitives, Some(primitives.bool), Some(ndims))
-    } else if unifier.unioned(lhs, rhs) {
-        primitives.bool
-    } else {
-        return Ok(None);
-    }))
 }
 
 pub fn set_primitives_magic_methods(store: &PrimitiveStore, unifier: &mut Unifier) {
@@ -701,81 +299,39 @@ pub fn set_primitives_magic_methods(store: &PrimitiveStore, unifier: &mut Unifie
         bool: bool_t,
         uint32: uint32_t,
         uint64: uint64_t,
-        str: str_t,
-        list: list_t,
-        ndarray: ndarray_t,
         ..
     } = *store;
-    let size_t = store.usize();
 
     /* int ======== */
     for t in [int32_t, int64_t, uint32_t, uint64_t] {
-        let ndarray_int_t = make_ndarray_ty(unifier, store, Some(t), None);
+        impl_basic_arithmetic(unifier, store, t, &[t], t);
-        impl_basic_arithmetic(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_pow(unifier, store, t, &[t], t);
-        impl_pow(unifier, store, t, &[t, ndarray_int_t], None);
         impl_bitwise_arithmetic(unifier, store, t);
         impl_bitwise_shift(unifier, store, t);
-        impl_div(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_div(unifier, store, t, &[t]);
-        impl_floordiv(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_floordiv(unifier, store, t, &[t], t);
-        impl_mod(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_mod(unifier, store, t, &[t], t);
-        impl_invert(unifier, store, t, Some(t));
+        impl_invert(unifier, store, t);
-        impl_not(unifier, store, t, Some(bool_t));
+        impl_not(unifier, store, t);
-        impl_comparison(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_comparison(unifier, store, t, t);
-        impl_eq(unifier, store, t, &[t, ndarray_int_t], None);
+        impl_eq(unifier, store, t);
     }
     for t in [int32_t, int64_t] {
-        impl_sign(unifier, store, t, Some(t));
+        impl_sign(unifier, store, t);
     }
 
     /* float ======== */
-    let ndarray_float_t = make_ndarray_ty(unifier, store, Some(float_t), None);
+    impl_basic_arithmetic(unifier, store, float_t, &[float_t], float_t);
-    let ndarray_int32_t = make_ndarray_ty(unifier, store, Some(int32_t), None);
+    impl_pow(unifier, store, float_t, &[int32_t, float_t], float_t);
-    impl_basic_arithmetic(unifier, store, float_t, &[float_t, ndarray_float_t], None);
+    impl_div(unifier, store, float_t, &[float_t]);
-    impl_pow(unifier, store, float_t, &[int32_t, float_t, ndarray_int32_t, ndarray_float_t], None);
+    impl_floordiv(unifier, store, float_t, &[float_t], float_t);
-    impl_div(unifier, store, float_t, &[float_t, ndarray_float_t], None);
+    impl_mod(unifier, store, float_t, &[float_t], float_t);
-    impl_floordiv(unifier, store, float_t, &[float_t, ndarray_float_t], None);
+    impl_sign(unifier, store, float_t);
-    impl_mod(unifier, store, float_t, &[float_t, ndarray_float_t], None);
+    impl_not(unifier, store, float_t);
-    impl_sign(unifier, store, float_t, Some(float_t));
+    impl_comparison(unifier, store, float_t, float_t);
-    impl_not(unifier, store, float_t, Some(bool_t));
+    impl_eq(unifier, store, float_t);
-    impl_comparison(unifier, store, float_t, &[float_t, ndarray_float_t], None);
-    impl_eq(unifier, store, float_t, &[float_t, ndarray_float_t], None);
 
     /* bool ======== */
-    let ndarray_bool_t = make_ndarray_ty(unifier, store, Some(bool_t), None);
+    impl_not(unifier, store, bool_t);
-    impl_invert(unifier, store, bool_t, Some(int32_t));
+    impl_eq(unifier, store, bool_t);
-    impl_not(unifier, store, bool_t, Some(bool_t));
-    impl_sign(unifier, store, bool_t, Some(int32_t));
-    impl_eq(unifier, store, bool_t, &[bool_t, ndarray_bool_t], None);
-
-    /* str ========= */
-    impl_cmpop(unifier, store, str_t, &[str_t], &[Cmpop::Eq, Cmpop::NotEq], Some(bool_t));
-
-    /* list ======== */
-    impl_binop(unifier, store, list_t, &[list_t], Some(list_t), &[Operator::Add]);
-    impl_binop(unifier, store, list_t, &[int32_t, int64_t], Some(list_t), &[Operator::Mult]);
-    impl_cmpop(unifier, store, list_t, &[list_t], &[Cmpop::Eq, Cmpop::NotEq], Some(bool_t));
-
-    /* ndarray ===== */
-    let ndarray_usized_ndims_tvar =
-        unifier.get_fresh_const_generic_var(size_t, Some("ndarray_ndims".into()), None);
-    let ndarray_unsized_t =
-        make_ndarray_ty(unifier, store, None, Some(ndarray_usized_ndims_tvar.ty));
-    let (ndarray_dtype_t, _) = unpack_ndarray_var_tys(unifier, ndarray_t);
-    let (ndarray_unsized_dtype_t, _) = unpack_ndarray_var_tys(unifier, ndarray_unsized_t);
-    impl_basic_arithmetic(
-        unifier,
-        store,
-        ndarray_t,
-        &[ndarray_unsized_t, ndarray_unsized_dtype_t],
-        None,
-    );
-    impl_pow(unifier, store, ndarray_t, &[ndarray_unsized_t, ndarray_unsized_dtype_t], None);
-    impl_div(unifier, store, ndarray_t, &[ndarray_t, ndarray_dtype_t], None);
-    impl_floordiv(unifier, store, ndarray_t, &[ndarray_unsized_t, ndarray_unsized_dtype_t], None);
-    impl_mod(unifier, store, ndarray_t, &[ndarray_unsized_t, ndarray_unsized_dtype_t], None);
-    impl_matmul(unifier, store, ndarray_t, &[ndarray_t], Some(ndarray_t));
-    impl_sign(unifier, store, ndarray_t, Some(ndarray_t));
-    impl_invert(unifier, store, ndarray_t, Some(ndarray_t));
-    impl_eq(unifier, store, ndarray_t, &[ndarray_unsized_t, ndarray_unsized_dtype_t], None);
-    impl_comparison(unifier, store, ndarray_t, &[ndarray_unsized_t, ndarray_unsized_dtype_t], None);
 }

nac3core/src/typecheck/type_error.rs

@@ -1,45 +1,24 @@
-use std::{collections::HashMap, fmt::Display};
+use std::collections::HashMap;
+use std::fmt::Display;
 
-use itertools::Itertools;
+use crate::typecheck::typedef::TypeEnum;
 
-use nac3parser::ast::{Cmpop, Location, StrRef};
+use super::typedef::{RecordKey, Type, Unifier};
-
+use nac3parser::ast::{Location, StrRef};
-use super::{
-    magic_methods::{Binop, HasOpInfo},
-    typedef::{RecordKey, Type, TypeEnum, Unifier},
-};
 
 #[derive(Debug, Clone)]
 pub enum TypeErrorKind {
-    GotMultipleValues {
-        name: StrRef,
-    },
     TooManyArguments {
-        expected_min_count: usize,
+        expected: usize,
-        expected_max_count: usize,
+        got: usize,
-        got_count: usize,
-    },
-    MissingArgs {
-        missing_arg_names: Vec<StrRef>,
     },
+    MissingArgs(String),
     UnknownArgName(StrRef),
     IncorrectArgType {
         name: StrRef,
         expected: Type,
         got: Type,
     },
-    UnsupportedBinaryOpTypes {
-        operator: Binop,
-        lhs_type: Type,
-        rhs_type: Type,
-        expected_rhs_type: Type,
-    },
-    UnsupportedComparsionOpTypes {
-        operator: Cmpop,
-        lhs_type: Type,
-        rhs_type: Type,
-        expected_rhs_type: Type,
-    },
     FieldUnificationError {
         field: RecordKey,
         types: (Type, Type),
@@ -55,7 +34,6 @@ pub enum TypeErrorKind {
     },
     RequiresTypeAnn,
     PolymorphicFunctionPointer,
-    NoSuchAttribute(RecordKey, Type),
 }
 
 #[derive(Debug, Clone)]
@@ -99,49 +77,22 @@ impl<'a> Display for DisplayTypeError<'a> {
         use TypeErrorKind::*;
         let mut notes = Some(HashMap::new());
         match &self.err.kind {
-            GotMultipleValues { name } => {
+            TooManyArguments { expected, got } => {
-                write!(f, "For multiple values for parameter {name}")
+                write!(f, "Too many arguments. Expected {expected} but got {got}")
             }
-            TooManyArguments { expected_min_count, expected_max_count, got_count } => {
+            MissingArgs(args) => {
-                debug_assert!(expected_min_count <= expected_max_count);
-                if expected_min_count == expected_max_count {
-                    let expected_count = expected_min_count; // or expected_max_count
-                    write!(f, "Too many arguments. Expected {expected_count} but got {got_count}")
-                } else {
-                    write!(f, "Too many arguments. Expected {expected_min_count} to {expected_max_count} arguments but got {got_count}")
-                }
-            }
-            MissingArgs { missing_arg_names } => {
-                let args = missing_arg_names.iter().join(", ");
                 write!(f, "Missing arguments: {args}")
             }
-            UnsupportedBinaryOpTypes { operator, lhs_type, rhs_type, expected_rhs_type } => {
-                let op_symbol = operator.op_info().symbol;
-
-                let lhs_type_str = self.unifier.stringify_with_notes(*lhs_type, &mut notes);
-                let rhs_type_str = self.unifier.stringify_with_notes(*rhs_type, &mut notes);
-                let expected_rhs_type_str =
-                    self.unifier.stringify_with_notes(*expected_rhs_type, &mut notes);
-
-                write!(f, "Unsupported operand type(s) for {op_symbol}: '{lhs_type_str}' and '{rhs_type_str}' (right operand should have type {expected_rhs_type_str})")
-            }
-            UnsupportedComparsionOpTypes { operator, lhs_type, rhs_type, expected_rhs_type } => {
-                let op_symbol = operator.op_info().symbol;
-
-                let lhs_type_str = self.unifier.stringify_with_notes(*lhs_type, &mut notes);
-                let rhs_type_str = self.unifier.stringify_with_notes(*rhs_type, &mut notes);
-                let expected_rhs_type_str =
-                    self.unifier.stringify_with_notes(*expected_rhs_type, &mut notes);
-
-                write!(f, "'{op_symbol}' not supported between instances of '{lhs_type_str}' and '{rhs_type_str}' (right operand should have type {expected_rhs_type_str})")
-            }
             UnknownArgName(name) => {
                 write!(f, "Unknown argument name: {name}")
             }
             IncorrectArgType { name, expected, got } => {
                 let expected = self.unifier.stringify_with_notes(*expected, &mut notes);
                 let got = self.unifier.stringify_with_notes(*got, &mut notes);
-                write!(f, "Incorrect argument type for parameter {name}. Expected {expected}, but got {got}")
+                write!(
+                    f,
+                    "Incorrect argument type for {name}. Expected {expected}, but got {got}"
+                )
             }
             FieldUnificationError { field, types, loc } => {
                 let lhs = self.unifier.stringify_with_notes(types.0, &mut notes);
@@ -182,10 +133,9 @@ impl<'a> Display for DisplayTypeError<'a> {
                         }
                         result
                     }
-                    (
+                    (TypeEnum::TTuple { ty: ty1 }, TypeEnum::TTuple { ty: ty2 })
-                        TypeEnum::TTuple { ty: ty1, is_vararg_ctx: is_vararg1 },
+                        if ty1.len() != ty2.len() =>
-                        TypeEnum::TTuple { ty: ty2, is_vararg_ctx: is_vararg2 },
+                    {
-                    ) if !is_vararg1 && !is_vararg2 && ty1.len() != ty2.len() => {
                         let t1 = self.unifier.stringify_with_notes(*t1, &mut notes);
                         let t2 = self.unifier.stringify_with_notes(*t2, &mut notes);
                         write!(f, "Tuple length mismatch: got {t1} and {t2}")
@@ -209,10 +159,6 @@ impl<'a> Display for DisplayTypeError<'a> {
                 let t = self.unifier.stringify_with_notes(*t, &mut notes);
                 write!(f, "`{t}::{name}` field/method does not exist")
             }
-            NoSuchAttribute(name, t) => {
-                let t = self.unifier.stringify_with_notes(*t, &mut notes);
-                write!(f, "`{t}::{name}` is not a class attribute")
-            }
             TupleIndexOutOfBounds { index, len } => {
                 write!(
                     f,

nac3core/src/typecheck/type_inferencer/test.rs

@@ -1,19 +1,15 @@
-use std::iter::zip;
+use super::super::{magic_methods::with_fields, typedef::*};
-
-use indexmap::IndexMap;
-use indoc::indoc;
-use parking_lot::RwLock;
-use test_case::test_case;
-
-use nac3parser::{ast::FileName, parser::parse_program};
-
 use super::*;
 use crate::{
-    codegen::{CodeGenContext, CodeGenerator},
+    codegen::CodeGenContext,
     symbol_resolver::ValueEnum,
-    toplevel::{helper::PrimDef, DefinitionId, TopLevelDef},
+    toplevel::{DefinitionId, TopLevelDef},
-    typecheck::{magic_methods::with_fields, typedef::*},
 };
+use indoc::indoc;
+use std::iter::zip;
+use nac3parser::parser::parse_program;
+use parking_lot::RwLock;
+use test_case::test_case;
 
 struct Resolver {
     id_to_type: HashMap<StrRef, Type>,
@@ -36,22 +32,19 @@ impl SymbolResolver for Resolver {
         _: &PrimitiveStore,
         str: StrRef,
     ) -> Result<Type, String> {
-        self.id_to_type.get(&str).copied().ok_or_else(|| format!("cannot find symbol `{str}`"))
+        self.id_to_type.get(&str).cloned().ok_or_else(|| format!("cannot find symbol `{}`", str))
     }
 
-    fn get_symbol_value<'ctx>(
+    fn get_symbol_value<'ctx, 'a>(
         &self,
         _: StrRef,
-        _: &mut CodeGenContext<'ctx, '_>,
+        _: &mut CodeGenContext<'ctx, 'a>,
-        _: &mut dyn CodeGenerator,
     ) -> Option<ValueEnum<'ctx>> {
         unimplemented!()
     }
 
     fn get_identifier_def(&self, id: StrRef) -> Result<DefinitionId, HashSet<String>> {
-        self.id_to_def
+        self.id_to_def.get(&id).cloned()
-            .get(&id)
-            .copied()
             .ok_or_else(|| HashSet::from(["Unknown identifier".to_string()]))
     }
 
@@ -80,86 +73,67 @@ impl TestEnvironment {
         let mut unifier = Unifier::new();
 
         let int32 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Int32.id(),
+            obj_id: DefinitionId(0),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         with_fields(&mut unifier, int32, |unifier, fields| {
             let add_ty = unifier.add_ty(TypeEnum::TFunc(FunSignature {
-                args: vec![FuncArg {
+                args: vec![FuncArg { name: "other".into(), ty: int32, default_value: None }],
-                    name: "other".into(),
-                    ty: int32,
-                    default_value: None,
-                    is_vararg: false,
-                }],
                 ret: int32,
-                vars: VarMap::new(),
+                vars: HashMap::new(),
             }));
             fields.insert("__add__".into(), (add_ty, false));
         });
         let int64 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Int64.id(),
+            obj_id: DefinitionId(1),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let float = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Float.id(),
+            obj_id: DefinitionId(2),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let bool = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Bool.id(),
+            obj_id: DefinitionId(3),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let none = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::None.id(),
+            obj_id: DefinitionId(4),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let range = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Range.id(),
+            obj_id: DefinitionId(5),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let str = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Str.id(),
+            obj_id: DefinitionId(6),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let exception = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Exception.id(),
+            obj_id: DefinitionId(7),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let uint32 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::UInt32.id(),
+            obj_id: DefinitionId(8),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let uint64 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::UInt64.id(),
+            obj_id: DefinitionId(9),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let option = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Option.id(),
+            obj_id: DefinitionId(10),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
-        });
-        let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
-        let list = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::List.id(),
-            fields: HashMap::new(),
-            params: into_var_map([list_elem_tvar]),
-        });
-        let ndarray_dtype_tvar = unifier.get_fresh_var(Some("ndarray_dtype".into()), None);
-        let ndarray_ndims_tvar =
-            unifier.get_fresh_const_generic_var(uint64, Some("ndarray_ndims".into()), None);
-        let ndarray = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::NDArray.id(),
-            fields: HashMap::new(),
-            params: into_var_map([ndarray_dtype_tvar, ndarray_ndims_tvar]),
         });
         let primitives = PrimitiveStore {
             int32,
@@ -173,14 +147,10 @@ impl TestEnvironment {
             uint32,
             uint64,
             option,
-            list,
-            ndarray,
-            size_t: 64,
         };
-        unifier.put_primitive_store(&primitives);
         set_primitives_magic_methods(&primitives, &mut unifier);
 
-        let id_to_name: HashMap<_, _> = [
+        let id_to_name = [
             (0, "int32".into()),
             (1, "int64".into()),
             (2, "float".into()),
@@ -190,21 +160,23 @@ impl TestEnvironment {
             (6, "str".into()),
             (7, "exception".into()),
         ]
-        .into();
+        .iter()
+        .cloned()
+        .collect();
 
         let mut identifier_mapping = HashMap::new();
         identifier_mapping.insert("None".into(), none);
 
         let resolver = Arc::new(Resolver {
             id_to_type: identifier_mapping.clone(),
-            id_to_def: HashMap::default(),
+            id_to_def: Default::default(),
-            class_names: HashMap::default(),
+            class_names: Default::default(),
         }) as Arc<dyn SymbolResolver + Send + Sync>;
 
         TestEnvironment {
             top_level: TopLevelContext {
-                definitions: Arc::default(),
+                definitions: Default::default(),
-                unifiers: Arc::default(),
+                unifiers: Default::default(),
                 personality_symbol: None,
             },
             unifier,
@@ -226,112 +198,81 @@ impl TestEnvironment {
         let mut identifier_mapping = HashMap::new();
         let mut top_level_defs: Vec<Arc<RwLock<TopLevelDef>>> = Vec::new();
         let int32 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Int32.id(),
+            obj_id: DefinitionId(0),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         with_fields(&mut unifier, int32, |unifier, fields| {
             let add_ty = unifier.add_ty(TypeEnum::TFunc(FunSignature {
-                args: vec![FuncArg {
+                args: vec![FuncArg { name: "other".into(), ty: int32, default_value: None }],
-                    name: "other".into(),
-                    ty: int32,
-                    default_value: None,
-                    is_vararg: false,
-                }],
                 ret: int32,
-                vars: VarMap::new(),
+                vars: HashMap::new(),
             }));
             fields.insert("__add__".into(), (add_ty, false));
         });
         let int64 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Int64.id(),
+            obj_id: DefinitionId(1),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let float = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Float.id(),
+            obj_id: DefinitionId(2),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let bool = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Bool.id(),
+            obj_id: DefinitionId(3),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let none = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::None.id(),
+            obj_id: DefinitionId(4),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let range = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Range.id(),
+            obj_id: DefinitionId(5),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let str = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Str.id(),
+            obj_id: DefinitionId(6),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let exception = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Exception.id(),
+            obj_id: DefinitionId(7),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let uint32 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::UInt32.id(),
+            obj_id: DefinitionId(8),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let uint64 = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::UInt64.id(),
+            obj_id: DefinitionId(9),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
         });
         let option = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::Option.id(),
+            obj_id: DefinitionId(10),
             fields: HashMap::new(),
-            params: VarMap::new(),
+            params: HashMap::new(),
-        });
-        let list_elem_tvar = unifier.get_fresh_var(Some("list_elem".into()), None);
-        let list = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::List.id(),
-            fields: HashMap::new(),
-            params: into_var_map([list_elem_tvar]),
-        });
-        let ndarray = unifier.add_ty(TypeEnum::TObj {
-            obj_id: PrimDef::NDArray.id(),
-            fields: HashMap::new(),
-            params: VarMap::new(),
         });
         identifier_mapping.insert("None".into(), none);
-        for (i, name) in [
+        for (i, name) in ["int32", "int64", "float", "bool", "none", "range", "str", "Exception"]
-            "int32",
+            .iter()
-            "int64",
+            .enumerate()
-            "float",
-            "bool",
-            "none",
-            "range",
-            "str",
-            "Exception",
-            "uint32",
-            "uint64",
-            "Option",
-            "list",
-            "ndarray",
-        ]
-        .iter()
-        .enumerate()
         {
             top_level_defs.push(
                 RwLock::new(TopLevelDef::Class {
                     name: (*name).into(),
                     object_id: DefinitionId(i),
-                    type_vars: Vec::default(),
+                    type_vars: Default::default(),
-                    fields: Vec::default(),
+                    fields: Default::default(),
-                    attributes: Vec::default(),
+                    methods: Default::default(),
-                    methods: Vec::default(),
+                    ancestors: Default::default(),
-                    ancestors: Vec::default(),
                     resolver: None,
                     constructor: None,
                     loc: None,
@@ -339,7 +280,7 @@ impl TestEnvironment {
                 .into(),
             );
         }
-        let defs = 12;
+        let defs = 7;
 
         let primitives = PrimitiveStore {
             int32,
@@ -353,29 +294,23 @@ impl TestEnvironment {
             uint32,
             uint64,
             option,
-            list,
-            ndarray,
-            size_t: 64,
         };
 
-        unifier.put_primitive_store(&primitives);
+        let (v0, id) = unifier.get_dummy_var();
-
-        let tvar = unifier.get_dummy_var();
 
         let foo_ty = unifier.add_ty(TypeEnum::TObj {
             obj_id: DefinitionId(defs + 1),
-            fields: [("a".into(), (tvar.ty, true))].into(),
+            fields: [("a".into(), (v0, true))].iter().cloned().collect::<HashMap<_, _>>(),
-            params: into_var_map([tvar]),
+            params: [(id, v0)].iter().cloned().collect::<HashMap<_, _>>(),
         });
         top_level_defs.push(
             RwLock::new(TopLevelDef::Class {
                 name: "Foo".into(),
                 object_id: DefinitionId(defs + 1),
-                type_vars: vec![tvar.ty],
+                type_vars: vec![v0],
-                fields: [("a".into(), tvar.ty, true)].into(),
+                fields: [("a".into(), v0, true)].into(),
-                attributes: Vec::default(),
+                methods: Default::default(),
-                methods: Vec::default(),
+                ancestors: Default::default(),
-                ancestors: Vec::default(),
                 resolver: None,
                 constructor: None,
                 loc: None,
@@ -388,29 +323,31 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TFunc(FunSignature {
                 args: vec![],
                 ret: foo_ty,
-                vars: into_var_map([tvar]),
+                vars: [(id, v0)].iter().cloned().collect(),
             })),
         );
 
         let fun = unifier.add_ty(TypeEnum::TFunc(FunSignature {
             args: vec![],
             ret: int32,
-            vars: IndexMap::default(),
+            vars: Default::default(),
         }));
         let bar = unifier.add_ty(TypeEnum::TObj {
             obj_id: DefinitionId(defs + 2),
-            fields: [("a".into(), (int32, true)), ("b".into(), (fun, true))].into(),
+            fields: [("a".into(), (int32, true)), ("b".into(), (fun, true))]
-            params: IndexMap::default(),
+                .iter()
+                .cloned()
+                .collect::<HashMap<_, _>>(),
+            params: Default::default(),
         });
         top_level_defs.push(
             RwLock::new(TopLevelDef::Class {
                 name: "Bar".into(),
                 object_id: DefinitionId(defs + 2),
-                type_vars: Vec::default(),
+                type_vars: Default::default(),
                 fields: [("a".into(), int32, true), ("b".into(), fun, true)].into(),
-                attributes: Vec::default(),
+                methods: Default::default(),
-                methods: Vec::default(),
+                ancestors: Default::default(),
-                ancestors: Vec::default(),
                 resolver: None,
                 constructor: None,
                 loc: None,
@@ -422,24 +359,26 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TFunc(FunSignature {
                 args: vec![],
                 ret: bar,
-                vars: IndexMap::default(),
+                vars: Default::default(),
             })),
         );
 
         let bar2 = unifier.add_ty(TypeEnum::TObj {
             obj_id: DefinitionId(defs + 3),
-            fields: [("a".into(), (bool, true)), ("b".into(), (fun, false))].into(),
+            fields: [("a".into(), (bool, true)), ("b".into(), (fun, false))]
-            params: IndexMap::default(),
+                .iter()
+                .cloned()
+                .collect::<HashMap<_, _>>(),
+            params: Default::default(),
         });
         top_level_defs.push(
             RwLock::new(TopLevelDef::Class {
                 name: "Bar2".into(),
                 object_id: DefinitionId(defs + 3),
-                type_vars: Vec::default(),
+                type_vars: Default::default(),
                 fields: [("a".into(), bool, true), ("b".into(), fun, false)].into(),
-                attributes: Vec::default(),
+                methods: Default::default(),
-                methods: Vec::default(),
+                ancestors: Default::default(),
-                ancestors: Vec::default(),
                 resolver: None,
                 constructor: None,
                 loc: None,
@@ -451,10 +390,10 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TFunc(FunSignature {
                 args: vec![],
                 ret: bar2,
-                vars: IndexMap::default(),
+                vars: Default::default(),
             })),
         );
-        let class_names: HashMap<_, _> = [("Bar".into(), bar), ("Bar2".into(), bar2)].into();
+        let class_names = [("Bar".into(), bar), ("Bar2".into(), bar2)].iter().cloned().collect();
 
         let id_to_name = [
             "int32".into(),
@@ -465,22 +404,18 @@ impl TestEnvironment {
             "range".into(),
             "str".into(),
             "exception".into(),
-            "uint32".into(),
-            "uint64".into(),
-            "option".into(),
-            "list".into(),
-            "ndarray".into(),
             "Foo".into(),
             "Bar".into(),
             "Bar2".into(),
         ]
-        .into_iter()
+        .iter()
         .enumerate()
+        .map(|(a, b)| (a, *b))
         .collect();
 
         let top_level = TopLevelContext {
             definitions: Arc::new(top_level_defs.into()),
-            unifiers: Arc::default(),
+            unifiers: Default::default(),
             personality_symbol: None,
         };
 
@@ -491,7 +426,9 @@ impl TestEnvironment {
                 ("Bar".into(), DefinitionId(defs + 2)),
                 ("Bar2".into(), DefinitionId(defs + 3)),
             ]
-            .into(),
+            .iter()
+            .cloned()
+            .collect(),
             class_names,
         }) as Arc<dyn SymbolResolver + Send + Sync>;
 
@@ -516,11 +453,11 @@ impl TestEnvironment {
             top_level: &self.top_level,
             function_data: &mut self.function_data,
             unifier: &mut self.unifier,
-            variable_mapping: HashMap::default(),
+            variable_mapping: Default::default(),
             primitives: &mut self.primitives,
             virtual_checks: &mut self.virtual_checks,
             calls: &mut self.calls,
-            defined_identifiers: HashMap::default(),
+            defined_identifiers: Default::default(),
             in_handler: false,
         }
     }
@@ -532,7 +469,7 @@ impl TestEnvironment {
         c = 1.234
         d = True
     "},
-    &[("a", "int32"), ("b", "int64"), ("c", "float"), ("d", "bool")].into(),
+    [("a", "int32"), ("b", "int64"), ("c", "float"), ("d", "bool")].iter().cloned().collect(),
     &[]
     ; "primitives test")]
 #[test_case(indoc! {"
@@ -541,7 +478,7 @@ impl TestEnvironment {
         c = 1.234
         d = b(c)
     "},
-    &[("a", "fn[[x:float, y:float], float]"), ("b", "fn[[x:float], float]"), ("c", "float"), ("d", "float")].into(),
+    [("a", "fn[[x:float, y:float], float]"), ("b", "fn[[x:float], float]"), ("c", "float"), ("d", "float")].iter().cloned().collect(),
     &[]
     ; "lambda test")]
 #[test_case(indoc! {"
@@ -550,7 +487,7 @@ impl TestEnvironment {
         a = b
         c = b(1)
     "},
-    &[("a", "fn[[x:int32], int32]"), ("b", "fn[[x:int32], int32]"), ("c", "int32")].into(),
+    [("a", "fn[[x:int32], int32]"), ("b", "fn[[x:int32], int32]"), ("c", "int32")].iter().cloned().collect(),
     &[]
     ; "lambda test 2")]
 #[test_case(indoc! {"
@@ -566,15 +503,15 @@ impl TestEnvironment {
         b(123)
 
     "},
-    &[("a", "fn[[x:bool], bool]"), ("b", "fn[[x:int32], int32]"), ("c", "bool"),
+    [("a", "fn[[x:bool], bool]"), ("b", "fn[[x:int32], int32]"), ("c", "bool"),
-     ("d", "int32"), ("foo1", "Foo[bool]"), ("foo2", "Foo[int32]")].into(),
+     ("d", "int32"), ("foo1", "Foo[bool]"), ("foo2", "Foo[int32]")].iter().cloned().collect(),
     &[]
     ; "obj test")]
 #[test_case(indoc! {"
         a = [1, 2, 3]
         b = [x + x for x in a]
     "},
-    &[("a", "list[int32]"), ("b", "list[int32]")].into(),
+    [("a", "list[int32]"), ("b", "list[int32]")].iter().cloned().collect(),
     &[]
     ; "listcomp test")]
 #[test_case(indoc! {"
@@ -582,26 +519,25 @@ impl TestEnvironment {
         b = a.b()
         a = virtual(Bar2())
     "},
-    &[("a", "virtual[Bar]"), ("b", "int32")].into(),
+    [("a", "virtual[Bar]"), ("b", "int32")].iter().cloned().collect(),
     &[("Bar", "Bar"), ("Bar2", "Bar")]
     ; "virtual test")]
 #[test_case(indoc! {"
         a = [virtual(Bar(), Bar), virtual(Bar2())]
         b = [x.b() for x in a]
     "},
-    &[("a", "list[virtual[Bar]]"), ("b", "list[int32]")].into(),
+    [("a", "list[virtual[Bar]]"), ("b", "list[int32]")].iter().cloned().collect(),
     &[("Bar", "Bar"), ("Bar2", "Bar")]
     ; "virtual list test")]
-fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &str)]) {
+fn test_basic(source: &str, mapping: HashMap<&str, &str>, virtuals: &[(&str, &str)]) {
-    println!("source:\n{source}");
+    println!("source:\n{}", source);
     let mut env = TestEnvironment::new();
     let id_to_name = std::mem::take(&mut env.id_to_name);
-    let mut defined_identifiers: HashMap<_, _> =
+    let mut defined_identifiers: HashSet<_> = env.identifier_mapping.keys().cloned().collect();
-        env.identifier_mapping.keys().copied().map(|id| (id, IdentifierInfo::default())).collect();
+    defined_identifiers.insert("virtual".into());
-    defined_identifiers.insert("virtual".into(), IdentifierInfo::default());
     let mut inferencer = env.get_inferencer();
-    inferencer.defined_identifiers.clone_from(&defined_identifiers);
+    inferencer.defined_identifiers = defined_identifiers.clone();
-    let statements = parse_program(source, FileName::default()).unwrap();
+    let statements = parse_program(source, Default::default()).unwrap();
     let statements = statements
         .into_iter()
         .map(|v| inferencer.fold_stmt(v))
@@ -610,37 +546,37 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
 
     inferencer.check_block(&statements, &mut defined_identifiers).unwrap();
 
-    for (k, v) in &inferencer.variable_mapping {
+    for (k, v) in inferencer.variable_mapping.iter() {
         let name = inferencer.unifier.internal_stringify(
             *v,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
-        println!("{k}: {name}");
+        println!("{}: {}", k, name);
     }
-    for (k, v) in mapping {
+    for (k, v) in mapping.iter() {
         let ty = inferencer.variable_mapping.get(&(*k).into()).unwrap();
         let name = inferencer.unifier.internal_stringify(
             *ty,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
-        assert_eq!(format!("{k}: {v}"), format!("{k}: {name}"));
+        assert_eq!(format!("{}: {}", k, v), format!("{}: {}", k, name));
     }
     assert_eq!(inferencer.virtual_checks.len(), virtuals.len());
     for ((a, b, _), (x, y)) in zip(inferencer.virtual_checks.iter(), virtuals) {
         let a = inferencer.unifier.internal_stringify(
             *a,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
         let b = inferencer.unifier.internal_stringify(
             *b,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
 
@@ -659,14 +595,14 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
         g = a // b
         h = a % b
     "},
-    &[("a", "int32"),
+    [("a", "int32"),
     ("b", "int32"),
     ("c", "int32"),
     ("d", "int32"),
     ("e", "int32"),
     ("f", "float"),
     ("g", "int32"),
-    ("h", "int32")].into()
+    ("h", "int32")].iter().cloned().collect()
     ; "int32")]
 #[test_case(
     indoc! {"
@@ -682,7 +618,7 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
         ii = 3
         j = a ** b
     "},
-    &[("a", "float"),
+    [("a", "float"),
     ("b", "float"),
     ("c", "float"),
     ("d", "float"),
@@ -692,7 +628,7 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
     ("h", "float"),
     ("i", "float"),
     ("ii", "int32"),
-    ("j", "float")].into()
+    ("j", "float")].iter().cloned().collect()
     ; "float"
 )]
 #[test_case(
@@ -710,7 +646,7 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
         k = a < b
         l = a != b
     "},
-    &[("a", "int64"),
+    [("a", "int64"),
     ("b", "int64"),
     ("c", "int64"),
     ("d", "int64"),
@@ -721,7 +657,7 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
     ("i", "bool"),
     ("j", "bool"),
     ("k", "bool"),
-    ("l", "bool")].into()
+    ("l", "bool")].iter().cloned().collect()
     ; "int64"
 )]
 #[test_case(
@@ -732,23 +668,22 @@ fn test_basic(source: &str, mapping: &HashMap<&str, &str>, virtuals: &[(&str, &s
         d = not a
         e = a != b
     "},
-    &[("a", "bool"),
+    [("a", "bool"),
     ("b", "bool"),
     ("c", "bool"),
     ("d", "bool"),
-    ("e", "bool")].into()
+    ("e", "bool")].iter().cloned().collect()
     ; "boolean"
 )]
-fn test_primitive_magic_methods(source: &str, mapping: &HashMap<&str, &str>) {
+fn test_primitive_magic_methods(source: &str, mapping: HashMap<&str, &str>) {
-    println!("source:\n{source}");
+    println!("source:\n{}", source);
     let mut env = TestEnvironment::basic_test_env();
     let id_to_name = std::mem::take(&mut env.id_to_name);
-    let mut defined_identifiers: HashMap<_, _> =
+    let mut defined_identifiers: HashSet<_> = env.identifier_mapping.keys().cloned().collect();
-        env.identifier_mapping.keys().copied().map(|id| (id, IdentifierInfo::default())).collect();
+    defined_identifiers.insert("virtual".into());
-    defined_identifiers.insert("virtual".into(), IdentifierInfo::default());
     let mut inferencer = env.get_inferencer();
-    inferencer.defined_identifiers.clone_from(&defined_identifiers);
+    inferencer.defined_identifiers = defined_identifiers.clone();
-    let statements = parse_program(source, FileName::default()).unwrap();
+    let statements = parse_program(source, Default::default()).unwrap();
     let statements = statements
         .into_iter()
         .map(|v| inferencer.fold_stmt(v))
@@ -757,23 +692,23 @@ fn test_primitive_magic_methods(source: &str, mapping: &HashMap<&str, &str>) {
 
     inferencer.check_block(&statements, &mut defined_identifiers).unwrap();
 
-    for (k, v) in &inferencer.variable_mapping {
+    for (k, v) in inferencer.variable_mapping.iter() {
         let name = inferencer.unifier.internal_stringify(
             *v,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
-        println!("{k}: {name}");
+        println!("{}: {}", k, name);
     }
-    for (k, v) in mapping {
+    for (k, v) in mapping.iter() {
         let ty = inferencer.variable_mapping.get(&(*k).into()).unwrap();
         let name = inferencer.unifier.internal_stringify(
             *ty,
             &mut |v| (*id_to_name.get(&v).unwrap()).into(),
-            &mut |v| format!("v{v}"),
+            &mut |v| format!("v{}", v),
             &mut None,
         );
-        assert_eq!(format!("{k}: {v}"), format!("{k}: {name}"));
+        assert_eq!(format!("{}: {}", k, v), format!("{}: {}", k, name));
     }
 }

nac3core/src/typecheck/typedef/test.rs

@@ -1,12 +1,10 @@
-use std::collections::HashMap;
+use super::super::magic_methods::with_fields;
-
+use super::*;
 use indoc::indoc;
 use itertools::Itertools;
+use std::collections::HashMap;
 use test_case::test_case;
 
-use super::*;
-use crate::typecheck::magic_methods::with_fields;
-
 impl Unifier {
     /// Check whether two types are equal.
     fn eq(&mut self, a: Type, b: Type) -> bool {
@@ -30,32 +28,32 @@ impl Unifier {
                 TypeEnum::TVar { fields: Some(map1), .. },
                 TypeEnum::TVar { fields: Some(map2), .. },
             ) => self.map_eq2(map1, map2),
-            (
+            (TypeEnum::TTuple { ty: ty1 }, TypeEnum::TTuple { ty: ty2 }) => {
-                TypeEnum::TTuple { ty: ty1, is_vararg_ctx: false },
-                TypeEnum::TTuple { ty: ty2, is_vararg_ctx: false },
-            ) => {
                 ty1.len() == ty2.len()
                     && ty1.iter().zip(ty2.iter()).all(|(t1, t2)| self.eq(*t1, *t2))
             }
-            (TypeEnum::TVirtual { ty: ty1 }, TypeEnum::TVirtual { ty: ty2 }) => self.eq(*ty1, *ty2),
+            (TypeEnum::TList { ty: ty1 }, TypeEnum::TList { ty: ty2 })
+            | (TypeEnum::TVirtual { ty: ty1 }, TypeEnum::TVirtual { ty: ty2 }) => {
+                self.eq(*ty1, *ty2)
+            }
             (
                 TypeEnum::TObj { obj_id: id1, params: params1, .. },
                 TypeEnum::TObj { obj_id: id2, params: params2, .. },
             ) => id1 == id2 && self.map_eq(params1, params2),
-            // TLiteral, TCall and TFunc are not yet implemented
+            // TCall and TFunc are not yet implemented
             _ => false,
         }
     }
 
-    fn map_eq<K>(&mut self, map1: &IndexMapping<K>, map2: &IndexMapping<K>) -> bool
+    fn map_eq<K>(&mut self, map1: &Mapping<K>, map2: &Mapping<K>) -> bool
     where
         K: std::hash::Hash + Eq + Clone,
     {
         if map1.len() != map2.len() {
             return false;
         }
-        for (k, v) in map1 {
+        for (k, v) in map1.iter() {
-            if !map2.get(k).is_some_and(|v1| self.eq(*v, *v1)) {
+            if !map2.get(k).map(|v1| self.eq(*v, *v1)).unwrap_or(false) {
                 return false;
             }
         }
@@ -69,8 +67,8 @@ impl Unifier {
         if map1.len() != map2.len() {
             return false;
         }
-        for (k, v) in map1 {
+        for (k, v) in map1.iter() {
-            if !map2.get(k).is_some_and(|v1| self.eq(v.ty, v1.ty)) {
+            if !map2.get(k).map(|v1| self.eq(v.ty, v1.ty)).unwrap_or(false) {
                 return false;
             }
         }
@@ -93,7 +91,7 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TObj {
                 obj_id: DefinitionId(0),
                 fields: HashMap::new(),
-                params: VarMap::new(),
+                params: HashMap::new(),
             }),
         );
         type_mapping.insert(
@@ -101,7 +99,7 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TObj {
                 obj_id: DefinitionId(1),
                 fields: HashMap::new(),
-                params: VarMap::new(),
+                params: HashMap::new(),
             }),
         );
         type_mapping.insert(
@@ -109,25 +107,16 @@ impl TestEnvironment {
             unifier.add_ty(TypeEnum::TObj {
                 obj_id: DefinitionId(2),
                 fields: HashMap::new(),
-                params: VarMap::new(),
+                params: HashMap::new(),
             }),
         );
-        let tvar = unifier.get_dummy_var();
+        let (v0, id) = unifier.get_dummy_var();
         type_mapping.insert(
             "Foo".into(),
             unifier.add_ty(TypeEnum::TObj {
                 obj_id: DefinitionId(3),
-                fields: [("a".into(), (tvar.ty, true))].into(),
+                fields: [("a".into(), (v0, true))].iter().cloned().collect::<HashMap<_, _>>(),
-                params: into_var_map([tvar]),
+                params: [(id, v0)].iter().cloned().collect::<HashMap<_, _>>(),
-            }),
-        );
-        let tvar = unifier.get_dummy_var();
-        type_mapping.insert(
-            "list".into(),
-            unifier.add_ty(TypeEnum::TObj {
-                obj_id: PrimDef::List.id(),
-                fields: HashMap::new(),
-                params: into_var_map([tvar]),
             }),
         );
 
@@ -140,40 +129,14 @@ impl TestEnvironment {
         result.0
     }
 
-    fn internal_parse<'b>(&mut self, typ: &'b str, mapping: &Mapping<String>) -> (Type, &'b str) {
+    fn internal_parse<'a, 'b>(
+        &'a mut self,
+        typ: &'b str,
+        mapping: &Mapping<String>,
+    ) -> (Type, &'b str) {
         // for testing only, so we can just panic when the input is malformed
-        let end = typ.find(|c| ['[', ',', ']', '='].contains(&c)).unwrap_or(typ.len());
+        let end = typ.find(|c| ['[', ',', ']', '='].contains(&c)).unwrap_or_else(|| typ.len());
         match &typ[..end] {
-            "list" => {
-                let mut s = &typ[end..];
-                assert_eq!(&s[0..1], "[");
-                let mut ty = Vec::new();
-                while &s[0..1] != "]" {
-                    let result = self.internal_parse(&s[1..], mapping);
-                    ty.push(result.0);
-                    s = result.1;
-                }
-
-                assert_eq!(ty.len(), 1);
-
-                let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
-                    &*self.unifier.get_ty_immutable(self.type_mapping["list"])
-                {
-                    iter_type_vars(params).next().unwrap()
-                } else {
-                    unreachable!()
-                };
-
-                (
-                    self.unifier
-                        .subst(
-                            self.type_mapping["list"],
-                            &into_var_map([TypeVar { id: list_elem_tvar.id, ty: ty[0] }]),
-                        )
-                        .unwrap(),
-                    &s[1..],
-                )
-            }
             "tuple" => {
                 let mut s = &typ[end..];
                 assert_eq!(&s[0..1], "[");
@@ -183,7 +146,13 @@ impl TestEnvironment {
                     ty.push(result.0);
                     s = result.1;
                 }
-                (self.unifier.add_ty(TypeEnum::TTuple { ty, is_vararg_ctx: false }), &s[1..])
+                (self.unifier.add_ty(TypeEnum::TTuple { ty }), &s[1..])
+            }
+            "list" => {
+                assert_eq!(&typ[end..end + 1], "[");
+                let (ty, s) = self.internal_parse(&typ[end + 1..], mapping);
+                assert_eq!(&s[0..1], "]");
+                (self.unifier.add_ty(TypeEnum::TList { ty }), &s[1..])
             }
             "Record" => {
                 let mut s = &typ[end..];
@@ -200,12 +169,12 @@ impl TestEnvironment {
             }
             x => {
                 let mut s = &typ[end..];
-                let ty = mapping.get(x).copied().unwrap_or_else(|| {
+                let ty = mapping.get(x).cloned().unwrap_or_else(|| {
                     // mapping should be type variables, type_mapping should be concrete types
                     // we should not resolve the type of type variables.
                     let mut ty = *self.type_mapping.get(x).unwrap();
                     let te = self.unifier.get_ty(ty);
-                    if let TypeEnum::TObj { params, .. } = &*te {
+                    if let TypeEnum::TObj { params, .. } = &*te.as_ref() {
                         if !params.is_empty() {
                             assert_eq!(&s[0..1], "[");
                             let mut p = Vec::new();
@@ -217,7 +186,7 @@ impl TestEnvironment {
                             s = &s[1..];
                             ty = self
                                 .unifier
-                                .subst(ty, &params.keys().copied().zip(p).collect())
+                                .subst(ty, &params.keys().cloned().zip(p.into_iter()).collect())
                                 .unwrap_or(ty);
                         }
                     }
@@ -281,12 +250,12 @@ fn test_unify(
         let mut mapping = HashMap::new();
         for i in 1..=variable_count {
             let v = env.unifier.get_dummy_var();
-            mapping.insert(format!("v{i}"), v.ty);
+            mapping.insert(format!("v{}", i), v.0);
         }
         // unification may have side effect when we do type resolution, so freeze the types
         // before doing unification.
         let mut pairs = Vec::new();
-        for (a, b) in &perm {
+        for (a, b) in perm.iter() {
             let t1 = env.parse(a, &mapping);
             let t2 = env.parse(b, &mapping);
             pairs.push((t1, t2));
@@ -294,8 +263,8 @@ fn test_unify(
         for (t1, t2) in pairs {
             env.unifier.unify(t1, t2).unwrap();
         }
-        for (a, b) in verify_pairs {
+        for (a, b) in verify_pairs.iter() {
-            println!("{a} = {b}");
+            println!("{} = {}", a, b);
             let t1 = env.parse(a, &mapping);
             let t2 = env.parse(b, &mapping);
             println!("a = {}, b = {}", env.unifier.stringify(t1), env.unifier.stringify(t2));
@@ -309,7 +278,7 @@ fn test_unify(
         ("v1", "tuple[int]"),
         ("v2", "list[int]"),
     ],
-    (("v1", "v2"), "Incompatible types: 11[0] and tuple[0]")
+    (("v1", "v2"), "Incompatible types: list[0] and tuple[0]")
     ; "type mismatch"
 )]
 #[test_case(2,
@@ -333,7 +302,7 @@ fn test_unify(
         ("v1", "Record[a=float,b=int]"),
         ("v2", "Foo[v3]"),
     ],
-    (("v1", "v2"), "`3[typevar5]::b` field/method does not exist")
+    (("v1", "v2"), "`3[typevar4]::b` field/method does not exist")
     ; "record obj merge"
 )]
 /// Test cases for invalid unifications.
@@ -346,12 +315,12 @@ fn test_invalid_unification(
     let mut mapping = HashMap::new();
     for i in 1..=variable_count {
         let v = env.unifier.get_dummy_var();
-        mapping.insert(format!("v{i}"), v.ty);
+        mapping.insert(format!("v{}", i), v.0);
     }
     // unification may have side effect when we do type resolution, so freeze the types
     // before doing unification.
     let mut pairs = Vec::new();
-    for (a, b) in unify_pairs {
+    for (a, b) in unify_pairs.iter() {
         let t1 = env.parse(a, &mapping);
         let t2 = env.parse(b, &mapping);
         pairs.push((t1, t2));
@@ -373,12 +342,16 @@ fn test_recursive_subst() {
     with_fields(&mut env.unifier, foo_id, |_unifier, fields| {
         fields.insert("rec".into(), (foo_id, true));
     });
-    let TypeEnum::TObj { params, .. } = &*foo_ty else { unreachable!() };
+    let TypeEnum::TObj { params, .. } = &*foo_ty else {
+        unreachable!()
+    };
     let mapping = params.iter().map(|(id, _)| (*id, int)).collect();
     let instantiated = env.unifier.subst(foo_id, &mapping).unwrap();
     let instantiated_ty = env.unifier.get_ty(instantiated);
 
-    let TypeEnum::TObj { fields, .. } = &*instantiated_ty else { unreachable!() };
+    let TypeEnum::TObj { fields, .. } = &*instantiated_ty else {
+        unreachable!()
+    };
     assert!(env.unifier.unioned(fields.get(&"a".into()).unwrap().0, int));
     assert!(env.unifier.unioned(fields.get(&"rec".into()).unwrap().0, instantiated));
 }
@@ -390,27 +363,36 @@ fn test_virtual() {
     let fun = env.unifier.add_ty(TypeEnum::TFunc(FunSignature {
         args: vec![],
         ret: int,
-        vars: VarMap::new(),
+        vars: HashMap::new(),
     }));
     let bar = env.unifier.add_ty(TypeEnum::TObj {
         obj_id: DefinitionId(5),
-        fields: [("f".into(), (fun, false)), ("a".into(), (int, false))].into(),
+        fields: [("f".into(), (fun, false)), ("a".into(), (int, false))]
-        params: VarMap::new(),
+            .iter()
+            .cloned()
+            .collect::<HashMap<StrRef, _>>(),
+        params: HashMap::new(),
     });
-    let v0 = env.unifier.get_dummy_var().ty;
+    let v0 = env.unifier.get_dummy_var().0;
-    let v1 = env.unifier.get_dummy_var().ty;
+    let v1 = env.unifier.get_dummy_var().0;
 
     let a = env.unifier.add_ty(TypeEnum::TVirtual { ty: bar });
     let b = env.unifier.add_ty(TypeEnum::TVirtual { ty: v0 });
-    let c = env.unifier.add_record([("f".into(), RecordField::new(v1, false, None))].into());
+    let c = env
+        .unifier
+        .add_record([("f".into(), RecordField::new(v1, false, None))].iter().cloned().collect());
     env.unifier.unify(a, b).unwrap();
     env.unifier.unify(b, c).unwrap();
     assert!(env.unifier.eq(v1, fun));
 
-    let d = env.unifier.add_record([("a".into(), RecordField::new(v1, true, None))].into());
+    let d = env
+        .unifier
+        .add_record([("a".into(), RecordField::new(v1, true, None))].iter().cloned().collect());
     assert_eq!(env.unify(b, d), Err("`virtual[5]::a` field/method does not exist".to_string()));
 
-    let d = env.unifier.add_record([("b".into(), RecordField::new(v1, true, None))].into());
+    let d = env
+        .unifier
+        .add_record([("b".into(), RecordField::new(v1, true, None))].iter().cloned().collect());
     assert_eq!(env.unify(b, d), Err("`virtual[5]::b` field/method does not exist".to_string()));
 }
 
@@ -423,132 +405,86 @@ fn test_typevar_range() {
     let int_list = env.parse("list[int]", &HashMap::new());
     let float_list = env.parse("list[float]", &HashMap::new());
 
-    let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
-        &*env.unifier.get_ty_immutable(env.type_mapping["list"])
-    {
-        iter_type_vars(params).next().unwrap()
-    } else {
-        unreachable!()
-    };
-
     // unification between v and int
     // where v in (int, bool)
-    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
+    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).0;
     env.unifier.unify(int, v).unwrap();
 
     // unification between v and list[int]
     // where v in (int, bool)
-    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
+    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).0;
     assert_eq!(
         env.unify(int_list, v),
-        Err("Expected any one of these types: 0, 2, but got 11[0]".to_string())
+        Err("Expected any one of these types: 0, 2, but got list[0]".to_string())
     );
 
     // unification between v and float
     // where v in (int, bool)
-    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
+    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).0;
     assert_eq!(
         env.unify(float, v),
         Err("Expected any one of these types: 0, 2, but got 1".to_string())
     );
 
-    let v1 = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
+    let v1 = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).0;
-    let v1_list = env.unifier.add_ty(TypeEnum::TObj {
+    let v1_list = env.unifier.add_ty(TypeEnum::TList { ty: v1 });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
+    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).0;
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: v1 }]),
-    });
-    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).ty;
     // unification between v and int
     // where v in (int, list[v1]), v1 in (int, bool)
     env.unifier.unify(int, v).unwrap();
 
-    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).ty;
+    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).0;
     // unification between v and list[int]
     // where v in (int, list[v1]), v1 in (int, bool)
     env.unifier.unify(int_list, v).unwrap();
 
-    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).ty;
+    let v = env.unifier.get_fresh_var_with_range(&[int, v1_list], None, None).0;
     // unification between v and list[float]
     // where v in (int, list[v1]), v1 in (int, bool)
-    println!("float_list: {}, v: {}", env.unifier.stringify(float_list), env.unifier.stringify(v));
     assert_eq!(
         env.unify(float_list, v),
-        Err("Expected any one of these types: 0, 11[typevar6], but got 11[1]\n\nNotes:\n    typevar6 ∈ {0, 2}".to_string())
+        Err("Expected any one of these types: 0, list[typevar5], but got list[1]\n\nNotes:\n    typevar5 ∈ {0, 2}".to_string())
     );
 
-    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
+    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).0;
-    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
+    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).0;
     env.unifier.unify(a, b).unwrap();
     env.unifier.unify(a, float).unwrap();
 
-    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
+    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).0;
-    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
+    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).0;
     env.unifier.unify(a, b).unwrap();
     assert_eq!(env.unify(a, int), Err("Expected any one of these types: 1, but got 0".into()));
 
-    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
+    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).0;
-    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
+    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).0;
-    let a_list = env.unifier.add_ty(TypeEnum::TObj {
+    let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
+    let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).0;
-        fields: Mapping::default(),
+    let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
+    let b_list = env.unifier.get_fresh_var_with_range(&[b_list], None, None).0;
-    });
-    let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).ty;
-    let b_list = env.unifier.add_ty(TypeEnum::TObj {
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
-    });
-    let b_list = env.unifier.get_fresh_var_with_range(&[b_list], None, None).ty;
     env.unifier.unify(a_list, b_list).unwrap();
-    let float_list = env.unifier.add_ty(TypeEnum::TObj {
+    let float_list = env.unifier.add_ty(TypeEnum::TList { ty: float });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: float }]),
-    });
     env.unifier.unify(a_list, float_list).unwrap();
     // previous unifications should not affect a and b
     env.unifier.unify(a, int).unwrap();
 
-    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
+    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).0;
-    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).ty;
+    let b = env.unifier.get_fresh_var_with_range(&[boolean, float], None, None).0;
-    let a_list = env.unifier.add_ty(TypeEnum::TObj {
+    let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
+    let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
-    });
-    let b_list = env.unifier.add_ty(TypeEnum::TObj {
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
-    });
     env.unifier.unify(a_list, b_list).unwrap();
-    let int_list = env.unifier.add_ty(TypeEnum::TObj {
+    let int_list = env.unifier.add_ty(TypeEnum::TList { ty: int });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: int }]),
-    });
     assert_eq!(
         env.unify(a_list, int_list),
-        Err("Incompatible types: 11[typevar23] and 11[0]\
+        Err("Incompatible types: list[typevar22] and list[0]\
-            \n\nNotes:\n    typevar23 ∈ {1}"
+            \n\nNotes:\n    typevar22 ∈ {1}".into())
-            .into())
     );
 
-    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).ty;
+    let a = env.unifier.get_fresh_var_with_range(&[int, float], None, None).0;
-    let b = env.unifier.get_dummy_var().ty;
+    let b = env.unifier.get_dummy_var().0;
-    let a_list = env.unifier.add_ty(TypeEnum::TObj {
+    let a_list = env.unifier.add_ty(TypeEnum::TList { ty: a });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
+    let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).0;
-        fields: Mapping::default(),
+    let b_list = env.unifier.add_ty(TypeEnum::TList { ty: b });
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
-    });
-    let a_list = env.unifier.get_fresh_var_with_range(&[a_list], None, None).ty;
-    let b_list = env.unifier.add_ty(TypeEnum::TObj {
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: b }]),
-    });
     env.unifier.unify(a_list, b_list).unwrap();
     assert_eq!(
         env.unify(b, boolean),
@@ -559,29 +495,17 @@ fn test_typevar_range() {
 #[test]
 fn test_rigid_var() {
     let mut env = TestEnvironment::new();
-    let a = env.unifier.get_fresh_rigid_var(None, None).ty;
+    let a = env.unifier.get_fresh_rigid_var(None, None).0;
-    let b = env.unifier.get_fresh_rigid_var(None, None).ty;
+    let b = env.unifier.get_fresh_rigid_var(None, None).0;
-    let x = env.unifier.get_dummy_var().ty;
+    let x = env.unifier.get_dummy_var().0;
-    let list_elem_tvar = env.unifier.get_fresh_var(Some("list_elem".into()), None);
+    let list_a = env.unifier.add_ty(TypeEnum::TList { ty: a });
-    let list_a = env.unifier.add_ty(TypeEnum::TObj {
+    let list_x = env.unifier.add_ty(TypeEnum::TList { ty: x });
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: a }]),
-    });
-    let list_x = env.unifier.add_ty(TypeEnum::TObj {
-        obj_id: env.type_mapping["list"].obj_id(&env.unifier).unwrap(),
-        fields: Mapping::default(),
-        params: into_var_map([TypeVar { id: list_elem_tvar.id, ty: x }]),
-    });
     let int = env.parse("int", &HashMap::new());
     let list_int = env.parse("list[int]", &HashMap::new());
 
-    assert_eq!(env.unify(a, b), Err("Incompatible types: typevar4 and typevar3".to_string()));
+    assert_eq!(env.unify(a, b), Err("Incompatible types: typevar3 and typevar2".to_string()));
     env.unifier.unify(list_a, list_x).unwrap();
-    assert_eq!(
+    assert_eq!(env.unify(list_x, list_int), Err("Incompatible types: list[typevar2] and list[0]".to_string()));
-        env.unify(list_x, list_int),
-        Err("Incompatible types: 11[typevar3] and 11[0]".to_string())
-    );
 
     env.unifier.replace_rigid_var(a, int);
     env.unifier.unify(list_x, list_int).unwrap();
@@ -595,26 +519,16 @@ fn test_instantiation() {
     let float = env.parse("float", &HashMap::new());
     let list_int = env.parse("list[int]", &HashMap::new());
 
-    let list_elem_tvar = if let TypeEnum::TObj { params, .. } =
+    let obj_map: HashMap<_, _> =
-        &*env.unifier.get_ty_immutable(env.type_mapping["list"])
+        [(0usize, "int"), (1, "float"), (2, "bool")].iter().cloned().collect();
-    {
-        iter_type_vars(params).next().unwrap()
-    } else {
-        unreachable!()
-    };
 
-    let obj_map: HashMap<_, _> = [(0usize, "int"), (1, "float"), (2, "bool"), (11, "list")].into();
+    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).0;
-
+    let list_v = env.unifier.add_ty(TypeEnum::TList { ty: v });
-    let v = env.unifier.get_fresh_var_with_range(&[int, boolean], None, None).ty;
+    let v1 = env.unifier.get_fresh_var_with_range(&[list_v, int], None, None).0;
-    let list_v = env
+    let v2 = env.unifier.get_fresh_var_with_range(&[list_int, float], None, None).0;
-        .unifier
+    let t = env.unifier.get_dummy_var().0;
-        .subst(env.type_mapping["list"], &into_var_map([TypeVar { id: list_elem_tvar.id, ty: v }]))
+    let tuple = env.unifier.add_ty(TypeEnum::TTuple { ty: vec![v, v1, v2] });
-        .unwrap();
+    let v3 = env.unifier.get_fresh_var_with_range(&[tuple, t], None, None).0;
-    let v1 = env.unifier.get_fresh_var_with_range(&[list_v, int], None, None).ty;
-    let v2 = env.unifier.get_fresh_var_with_range(&[list_int, float], None, None).ty;
-    let t = env.unifier.get_dummy_var().ty;
-    let tuple = env.unifier.add_ty(TypeEnum::TTuple { ty: vec![v, v1, v2], is_vararg_ctx: false });
-    let v3 = env.unifier.get_fresh_var_with_range(&[tuple, t], None, None).ty;
     // t = TypeVar('t')
     // v = TypeVar('v', int, bool)
     // v1 = TypeVar('v1', 'list[v]', int)
@@ -636,7 +550,7 @@ fn test_instantiation() {
         tuple[int, list[bool], list[int]]
         tuple[int, list[int], float]
         tuple[int, list[int], list[int]]
-        v6"
+        v5"
     }
     .split('\n')
     .collect_vec();
@@ -645,8 +559,8 @@ fn test_instantiation() {
         .map(|ty| {
             env.unifier.internal_stringify(
                 *ty,
-                &mut |i| (*obj_map.get(&i).unwrap()).to_string(),
+                &mut |i| obj_map.get(&i).unwrap().to_string(),
-                &mut |i| format!("v{i}"),
+                &mut |i| format!("v{}", i),
                 &mut None,
             )
         })

nac3core/src/typecheck/unification_table.rs

@@ -16,10 +16,21 @@ pub struct UnificationTable<V> {
 
 #[derive(Clone, Debug)]
 enum Action<V> {
-    Parent { key: usize, original_parent: usize },
+    Parent {
-    Value { key: usize, original_value: Option<V> },
+        key: usize,
-    Rank { key: usize, original_rank: u32 },
+        original_parent: usize,
-    Marker { generation: u32 },
+    },
+    Value {
+        key: usize,
+        original_value: Option<V>,
+    },
+    Rank {
+        key: usize,
+        original_rank: u32,
+    },
+    Marker {
+        generation: u32,
+    }
 }
 
 impl<V> Default for UnificationTable<V> {
@@ -30,13 +41,7 @@ impl<V> Default for UnificationTable<V> {
 
 impl<V> UnificationTable<V> {
     pub fn new() -> UnificationTable<V> {
-        UnificationTable {
+        UnificationTable { parents: Vec::new(), ranks: Vec::new(), values: Vec::new(), log: Vec::new(), generation: 0 }
-            parents: Vec::new(),
-            ranks: Vec::new(),
-            values: Vec::new(),
-            log: Vec::new(),
-            generation: 0,
-        }
     }
 
     pub fn new_key(&mut self, v: V) -> UnificationKey {
@@ -120,10 +125,7 @@ impl<V> UnificationTable<V> {
     pub fn restore_snapshot(&mut self, snapshot: (usize, u32)) {
         let (log_len, generation) = snapshot;
         assert!(self.log.len() >= log_len, "snapshot restoration error");
-        assert!(
+        assert!(matches!(self.log[log_len - 1], Action::Marker { generation: gen } if gen == generation), "snapshot restoration error");
-            matches!(self.log[log_len - 1], Action::Marker { generation: gen } if gen == generation),
-            "snapshot restoration error"
-        );
         for action in self.log.drain(log_len - 1..).rev() {
             match action {
                 Action::Parent { key, original_parent } => {
@@ -143,10 +145,7 @@ impl<V> UnificationTable<V> {
     pub fn discard_snapshot(&mut self, snapshot: (usize, u32)) {
         let (log_len, generation) = snapshot;
         assert!(self.log.len() >= log_len, "snapshot discard error");
-        assert!(
+        assert!(matches!(self.log[log_len - 1], Action::Marker { generation: gen } if gen == generation), "snapshot discard error");
-            matches!(self.log[log_len - 1], Action::Marker { generation: gen } if gen == generation),
-            "snapshot discard error"
-        );
         self.log.clear();
     }
 }
@@ -160,23 +159,11 @@ where
             .enumerate()
             .map(|(i, (v, p))| if *p == i { v.as_ref().map(|v| v.as_ref().clone()) } else { None })
             .collect();
-        UnificationTable {
+        UnificationTable { parents: self.parents.clone(), ranks: self.ranks.clone(), values, log: Vec::new(), generation: 0 }
-            parents: self.parents.clone(),
-            ranks: self.ranks.clone(),
-            values,
-            log: Vec::new(),
-            generation: 0,
-        }
     }
 
     pub fn from_send(table: &UnificationTable<V>) -> UnificationTable<Rc<V>> {
         let values = table.values.iter().cloned().map(|v| v.map(Rc::new)).collect();
-        UnificationTable {
+        UnificationTable { parents: table.parents.clone(), ranks: table.ranks.clone(), values, log: Vec::new(), generation: 0 }
-            parents: table.parents.clone(),
-            ranks: table.ranks.clone(),
-            values,
-            log: Vec::new(),
-            generation: 0,
-        }
     }
 }

nac3ld/src/dwarf.rs

@@ -24,15 +24,27 @@ pub const DW_EH_PE_aligned: u8 = 0x50;
 
 pub const DW_EH_PE_indirect: u8 = 0x80;
 
-#[derive(Clone)]
 pub struct DwarfReader<'a> {
     pub slice: &'a [u8],
     pub virt_addr: u32,
+    base_slice: &'a [u8],
+    base_virt_addr: u32,
 }
 
 impl<'a> DwarfReader<'a> {
+
     pub fn new(slice: &[u8], virt_addr: u32) -> DwarfReader {
-        DwarfReader { slice, virt_addr }
+        DwarfReader { slice, virt_addr, base_slice: slice, base_virt_addr: virt_addr }
+    }
+
+    /// Creates a new instance from another instance of [DwarfReader], optionally removing any
+    /// offsets previously applied to the other instance.
+    pub fn from_reader(other: &DwarfReader<'a>, reset_offset: bool) -> DwarfReader<'a> {
+        if reset_offset {
+            DwarfReader::new(other.base_slice, other.base_virt_addr)
+        } else {
+            DwarfReader::new(other.slice, other.virt_addr)
+        }
     }
 
     pub fn offset(&mut self, offset: u32) {
@@ -48,7 +60,7 @@ impl<'a> DwarfReader<'a> {
         let mut byte: u8;
         loop {
             byte = self.read_u8();
-            result |= u64::from(byte & 0x7F) << shift;
+            result |= ((byte & 0x7F) as u64) << shift;
             shift += 7;
             if byte & 0x80 == 0 {
                 break;
@@ -63,7 +75,7 @@ impl<'a> DwarfReader<'a> {
         let mut byte: u8;
         loop {
             byte = self.read_u8();
-            result |= u64::from(byte & 0x7F) << shift;
+            result |= ((byte & 0x7F) as u64) << shift;
             shift += 7;
             if byte & 0x80 == 0 {
                 break;
@@ -79,7 +91,6 @@ impl<'a> DwarfReader<'a> {
     pub fn read_u8(&mut self) -> u8 {
         let val = self.slice[0];
         self.slice = &self.slice[1..];
-        self.virt_addr += 1;
         val
     }
 }
@@ -91,7 +102,6 @@ macro_rules! impl_read_fn {
                 pub fn $byteorder_fn(&mut self) -> $type {
                     let val = LittleEndian::$byteorder_fn(self.slice);
                     self.slice = &self.slice[mem::size_of::<$type>()..];
-                    self.virt_addr += mem::size_of::<$type>() as u32;
                     val
                 }
             )*
@@ -147,9 +157,10 @@ fn read_encoded_pointer(reader: &mut DwarfReader, encoding: u8) -> Result<usize,
     }
 
     match encoding & 0x0F {
-        DW_EH_PE_absptr | DW_EH_PE_udata4 => Ok(reader.read_u32() as usize),
+        DW_EH_PE_absptr => Ok(reader.read_u32() as usize),
         DW_EH_PE_uleb128 => Ok(reader.read_uleb128() as usize),
         DW_EH_PE_udata2 => Ok(reader.read_u16() as usize),
+        DW_EH_PE_udata4 => Ok(reader.read_u32() as usize),
         DW_EH_PE_udata8 => Ok(reader.read_u64() as usize),
         DW_EH_PE_sleb128 => Ok(reader.read_sleb128() as usize),
         DW_EH_PE_sdata2 => Ok(reader.read_i16() as usize),
@@ -159,7 +170,10 @@ fn read_encoded_pointer(reader: &mut DwarfReader, encoding: u8) -> Result<usize,
     }
 }
 
-fn read_encoded_pointer_with_pc(reader: &mut DwarfReader, encoding: u8) -> Result<usize, ()> {
+fn read_encoded_pointer_with_pc(
+    reader: &mut DwarfReader,
+    encoding: u8,
+) -> Result<usize, ()> {
     let entry_virt_addr = reader.virt_addr;
     let mut result = read_encoded_pointer(reader, encoding)?;
 
@@ -209,18 +223,22 @@ pub struct EH_Frame<'a> {
 }
 
 impl<'a> EH_Frame<'a> {
+
     /// Creates an [EH_Frame] using the bytes in the `.eh_frame` section and its address in the ELF
     /// file.
-    pub fn new(eh_frame_slice: &[u8], eh_frame_addr: u32) -> EH_Frame {
+    pub fn new(eh_frame_slice: &[u8], eh_frame_addr: u32) -> Result<EH_Frame, ()> {
-        EH_Frame { reader: DwarfReader::new(eh_frame_slice, eh_frame_addr) }
+        Ok(EH_Frame { reader: DwarfReader::new(eh_frame_slice, eh_frame_addr) })
     }
 
     /// Returns an [Iterator] over all Call Frame Information (CFI) records.
     pub fn cfi_records(&self) -> CFI_Records<'a> {
-        let reader = self.reader.clone();
+        let reader = DwarfReader::from_reader(&self.reader, true);
         let len = reader.slice.len();
 
-        CFI_Records { reader, available: len }
+        CFI_Records {
+            reader,
+            available: len,
+        }
     }
 }
 
@@ -229,7 +247,7 @@ impl<'a> EH_Frame<'a> {
 /// From the [specification](https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html):
 ///
 /// > Each CFI record contains a Common Information Entry (CIE) record followed by 1 or more Frame
-/// > Description Entry (FDE) records.
+/// Description Entry (FDE) records.
 pub struct CFI_Record<'a> {
     // It refers to the augmentation data that corresponds to 'R' in the augmentation string
     fde_pointer_encoding: u8,
@@ -237,6 +255,7 @@ pub struct CFI_Record<'a> {
 }
 
 impl<'a> CFI_Record<'a> {
+
     pub fn from_reader(cie_reader: &mut DwarfReader<'a>) -> Result<CFI_Record<'a>, ()> {
         let length = cie_reader.read_u32();
         let fde_reader = match length {
@@ -245,10 +264,10 @@ impl<'a> CFI_Record<'a> {
 
             // length == u32::MAX means that the length is only representable with 64 bits,
             // which does not make sense in a system with 32-bit address.
-            0xFFFF_FFFF => unimplemented!(),
+            0xFFFFFFFF => unimplemented!(),
 
             _ => {
-                let mut fde_reader = cie_reader.clone();
+                let mut fde_reader = DwarfReader::from_reader(cie_reader, false);
                 fde_reader.offset(length);
                 fde_reader
             }
@@ -267,7 +286,7 @@ impl<'a> CFI_Record<'a> {
         // Skip code/data alignment factors & return address register along the way as well
         // We only tackle the case where 'z' and 'R' are part of the augmentation string, otherwise
         // we cannot get the addresses to make .eh_frame_hdr
-        let mut aug_data_reader = cie_reader.clone();
+        let mut aug_data_reader = DwarfReader::from_reader(cie_reader, false);
         let mut aug_str_len = 0;
         loop {
             if aug_data_reader.read_u8() == b'\0' {
@@ -304,13 +323,16 @@ impl<'a> CFI_Record<'a> {
         }
         assert_ne!(fde_pointer_encoding, DW_EH_PE_omit);
 
-        Ok(CFI_Record { fde_pointer_encoding, fde_reader })
+        Ok(CFI_Record {
+            fde_pointer_encoding,
+            fde_reader,
+        })
     }
 
     /// Returns a [DwarfReader] initialized to the first Frame Description Entry (FDE) of this CFI
     /// record.
     pub fn get_fde_reader(&self) -> DwarfReader<'a> {
-        self.fde_reader.clone()
+        DwarfReader::from_reader(&self.fde_reader, true)
     }
 
     /// Returns an [Iterator] over all Frame Description Entries (FDEs).
@@ -318,7 +340,11 @@ impl<'a> CFI_Record<'a> {
         let reader = self.get_fde_reader();
         let len = reader.slice.len();
 
-        FDE_Records { pointer_encoding: self.fde_pointer_encoding, reader, available: len }
+        FDE_Records {
+            pointer_encoding: self.fde_pointer_encoding,
+            reader,
+            available: len,
+        }
     }
 }
 
@@ -338,20 +364,20 @@ impl<'a> Iterator for CFI_Records<'a> {
                 return None;
             }
 
-            let mut this_reader = self.reader.clone();
+            let mut this_reader = DwarfReader::from_reader(&self.reader, false);
 
             // Remove the length of the header and the content from the counter
             let length = self.reader.read_u32();
             let length = match length {
                 // eh_frame with 0-length means the CIE is terminated
                 0 => return None,
-                0xFFFF_FFFF => unimplemented!("CIE entries larger than 4 bytes not supported"),
+                0xFFFFFFFF => unimplemented!("CIE entries larger than 4 bytes not supported"),
                 other => other,
             } as usize;
 
             // Remove the length of the header and the content from the counter
             self.available -= length + mem::size_of::<u32>();
-            let mut next_reader = self.reader.clone();
+            let mut next_reader = DwarfReader::from_reader(&self.reader, false);
             next_reader.offset(length as u32);
 
             let cie_ptr = self.reader.read_u32();
@@ -361,7 +387,7 @@ impl<'a> Iterator for CFI_Records<'a> {
             // Skip this record if it is a FDE
             if cie_ptr == 0 {
                 // Rewind back to the start of the CFI Record
-                return Some(CFI_Record::from_reader(&mut this_reader).ok().unwrap());
+                return Some(CFI_Record::from_reader(&mut this_reader).ok().unwrap())
             }
         }
     }
@@ -387,26 +413,24 @@ impl<'a> Iterator for FDE_Records<'a> {
             return None;
         }
 
-        let fde_addr = self.reader.virt_addr;
-
         // Remove the length of the header and the content from the counter
         let length = match self.reader.read_u32() {
             // eh_frame with 0-length means the CIE is terminated
             0 => return None,
-            0xFFFF_FFFF => unimplemented!("CIE entries larger than 4 bytes not supported"),
+            0xFFFFFFFF => unimplemented!("CIE entries larger than 4 bytes not supported"),
             other => other,
         } as usize;
 
         // Remove the length of the header and the content from the counter
         self.available -= length + mem::size_of::<u32>();
-        let mut next_fde_reader = self.reader.clone();
+        let mut next_fde_reader = DwarfReader::from_reader(&self.reader, false);
         next_fde_reader.offset(length as u32);
 
         let cie_ptr = self.reader.read_u32();
         let next_val = if cie_ptr != 0 {
             let pc_begin = read_encoded_pointer_with_pc(&mut self.reader, self.pointer_encoding)
                 .expect("Failed to read PC Begin");
-            Some((pc_begin as u32, fde_addr))
+            Some((pc_begin as u32, self.reader.virt_addr))
         } else {
             None
         };
@@ -424,6 +448,7 @@ pub struct EH_Frame_Hdr<'a> {
 }
 
 impl<'a> EH_Frame_Hdr<'a> {
+
     /// Create a [EH_Frame_Hdr] object, and write out the fixed fields of `.eh_frame_hdr` to memory.
     ///
     /// Load address is not known at this point.
@@ -434,14 +459,15 @@ impl<'a> EH_Frame_Hdr<'a> {
     ) -> EH_Frame_Hdr {
         let mut writer = DwarfWriter::new(eh_frame_hdr_slice);
 
-        writer.write_u8(1); // version
+        writer.write_u8(1);     // version
-        writer.write_u8(0x1B); // eh_frame_ptr_enc - PC-relative 4-byte signed value
+        writer.write_u8(0x1B);  // eh_frame_ptr_enc - PC-relative 4-byte signed value
-        writer.write_u8(0x03); // fde_count_enc - 4-byte unsigned value
+        writer.write_u8(0x03);  // fde_count_enc - 4-byte unsigned value
-        writer.write_u8(0x3B); // table_enc - .eh_frame_hdr section-relative 4-byte signed value
+        writer.write_u8(0x3B);  // table_enc - .eh_frame_hdr section-relative 4-byte signed value
 
-        let eh_frame_offset = eh_frame_addr.wrapping_sub(eh_frame_hdr_addr + writer.offset as u32);
+        let eh_frame_offset = eh_frame_addr
-        writer.write_u32(eh_frame_offset); // eh_frame_ptr
+            .wrapping_sub(eh_frame_hdr_addr + writer.offset as u32 + ((mem::size_of::<u8>() as u32) * 4));
-        writer.write_u32(0); // `fde_count`, will be written in finalize_fde
+        writer.write_u32(eh_frame_offset);  // eh_frame_ptr
+        writer.write_u32(0);  // `fde_count`, will be written in finalize_fde
 
         EH_Frame_Hdr { fde_writer: writer, eh_frame_hdr_addr, fdes: Vec::new() }
     }
@@ -466,10 +492,7 @@ impl<'a> EH_Frame_Hdr<'a> {
             self.fde_writer.write_u32(*init_loc);
             self.fde_writer.write_u32(*addr);
         }
-        LittleEndian::write_u32(
+        LittleEndian::write_u32(&mut self.fde_writer.slice[Self::fde_count_offset()..], self.fdes.len() as u32);
-            &mut self.fde_writer.slice[Self::fde_count_offset()..],
-            self.fdes.len() as u32,
-        );
     }
 
     pub fn size_from_eh_frame(eh_frame: &[u8]) -> usize {
@@ -481,7 +504,7 @@ impl<'a> EH_Frame_Hdr<'a> {
             // The original length field should be able to hold the entire value.
             // The device memory space is limited to 32-bits addresses anyway.
             let entry_length = reader.read_u32();
-            if entry_length == 0 || entry_length == 0xFFFF_FFFF {
+            if entry_length == 0 || entry_length == 0xFFFFFFFF {
                 unimplemented!()
             }
 
@@ -492,7 +515,7 @@ impl<'a> EH_Frame_Hdr<'a> {
                 fde_count += 1;
             }
 
-            reader.offset(entry_length - mem::size_of::<u32>() as u32);
+            reader.offset(entry_length - mem::size_of::<u32>() as u32)
         }
 
         12 + fde_count * 8

nac3ld/src/elf.rs

@@ -1,5 +1,5 @@
 /* generated from elf.h with rust-bindgen and then manually altered */
-#![allow(non_camel_case_types, non_snake_case, non_upper_case_globals, dead_code, clippy::pedantic)]
+#![allow(non_camel_case_types, non_snake_case, non_upper_case_globals, dead_code)]
 
 pub const EI_NIDENT: usize = 16;
 pub const EI_MAG0: usize = 0;

nac3ld/src/lib.rs

@@ -1,26 +1,10 @@
-#![deny(future_incompatible, let_underscore, nonstandard_style, clippy::all)]
-#![warn(clippy::pedantic)]
-#![allow(
-    clippy::cast_possible_truncation,
-    clippy::cast_possible_wrap,
-    clippy::cast_sign_loss,
-    clippy::doc_markdown,
-    clippy::enum_glob_use,
-    clippy::missing_errors_doc,
-    clippy::missing_panics_doc,
-    clippy::module_name_repetitions,
-    clippy::similar_names,
-    clippy::struct_field_names,
-    clippy::too_many_lines,
-    clippy::wildcard_imports
-)]
-
-use std::{collections::HashMap, mem, ptr, slice, str};
-
-use byteorder::{ByteOrder, LittleEndian};
-
 use dwarf::*;
 use elf::*;
+use std::collections::HashMap;
+use std::{mem, ptr, slice, str};
+
+extern crate byteorder;
+use byteorder::{ByteOrder, LittleEndian};
 
 mod dwarf;
 mod elf;
@@ -86,45 +70,45 @@ struct SectionRecord<'a> {
     data: Vec<u8>,
 }
 
-fn read_unaligned<T: Copy>(data: &[u8], offset: usize) -> Option<T> {
+fn read_unaligned<T: Copy>(data: &[u8], offset: usize) -> Result<T, ()> {
     if data.len() < offset + mem::size_of::<T>() {
-        None
+        Err(())
     } else {
-        let ptr = data.as_ptr().wrapping_add(offset).cast();
+        let ptr = data.as_ptr().wrapping_add(offset) as *const T;
-        Some(unsafe { ptr::read_unaligned(ptr) })
+        Ok(unsafe { ptr::read_unaligned(ptr) })
     }
 }
 
-#[must_use]
+pub fn get_ref_slice<T: Copy>(data: &[u8], offset: usize, len: usize) -> Result<&[T], ()> {
-pub fn get_ref_slice<T: Copy>(data: &[u8], offset: usize, len: usize) -> Option<&[T]> {
     if data.len() < offset + mem::size_of::<T>() * len {
-        None
+        Err(())
     } else {
-        let ptr = data.as_ptr().wrapping_add(offset).cast();
+        let ptr = data.as_ptr().wrapping_add(offset) as *const T;
-        Some(unsafe { slice::from_raw_parts(ptr, len) })
+        Ok(unsafe { slice::from_raw_parts(ptr, len) })
     }
 }
 
-fn from_struct_slice<T>(struct_vec: &[T]) -> Vec<u8> {
+fn from_struct_vec<T>(struct_vec: Vec<T>) -> Vec<u8> {
     let ptr = struct_vec.as_ptr();
-    unsafe { slice::from_raw_parts(ptr.cast(), mem::size_of_val(struct_vec)) }.to_vec()
+    unsafe { slice::from_raw_parts(ptr as *const u8, struct_vec.len() * mem::size_of::<T>()) }
+        .to_vec()
 }
 
 fn to_struct_slice<T>(bytes: &[u8]) -> &[T] {
-    unsafe { slice::from_raw_parts(bytes.as_ptr().cast(), bytes.len() / mem::size_of::<T>()) }
+    unsafe { slice::from_raw_parts(bytes.as_ptr() as *const T, bytes.len() / mem::size_of::<T>()) }
 }
 
 fn to_struct_mut_slice<T>(bytes: &mut [u8]) -> &mut [T] {
     unsafe {
-        slice::from_raw_parts_mut(bytes.as_mut_ptr().cast(), bytes.len() / mem::size_of::<T>())
+        slice::from_raw_parts_mut(bytes.as_mut_ptr() as *mut T, bytes.len() / mem::size_of::<T>())
     }
 }
 
 fn elf_hash(name: &[u8]) -> u32 {
     let mut h: u32 = 0;
     for c in name {
-        h = (h << 4) + u32::from(*c);
+        h = (h << 4) + *c as u32;
-        let g = h & 0xf000_0000;
+        let g = h & 0xf0000000;
         if g != 0 {
             h ^= g >> 24;
             h &= !g;
@@ -218,26 +202,22 @@ impl<'a> Linker<'a> {
         relocs: &[R],
         target_section: Elf32_Word,
     ) -> Result<(), Error> {
-        type RelocateFn = dyn Fn(&mut [u8], Elf32_Word);
-
-        struct RelocInfo<'a, R> {
-            pub defined_val: bool,
-            pub indirect_reloc: Option<&'a R>,
-            pub pc_relative: bool,
-            pub relocate: Option<Box<RelocateFn>>,
-        }
-
         for reloc in relocs {
             let sym = match reloc.sym_info() as usize {
                 STN_UNDEF => None,
-                sym_index => {
+                sym_index => Some(
-                    Some(self.symtab.get(sym_index).ok_or("symbol out of bounds of symbol table")?)
+                    self.symtab
-                }
+                        .get(sym_index)
+                        .ok_or("symbol out of bounds of symbol table")?,
+                ),
             };
 
             let resolve_symbol_addr =
                 |sym_option: Option<&Elf32_Sym>| -> Result<Elf32_Word, Error> {
-                    let Some(sym) = sym_option else { return Ok(0) };
+                    let sym = match sym_option {
+                        Some(sym) => sym,
+                        None => return Ok(0),
+                    };
 
                     match sym.st_shndx {
                         SHN_UNDEF => Err(Error::Lookup("undefined symbol")),
@@ -264,6 +244,13 @@ impl<'a> Linker<'a> {
                     .ok_or(Error::Parsing("Cannot find section with matching sh_index"))
             };
 
+            struct RelocInfo<'a, R> {
+                pub defined_val: bool,
+                pub indirect_reloc: Option<&'a R>,
+                pub pc_relative: bool,
+                pub relocate: Option<Box<dyn Fn(&mut [u8], Elf32_Word)>>,
+            }
+
             let classify = |reloc: &R, sym_option: Option<&Elf32_Sym>| -> Option<RelocInfo<R>> {
                 let defined_val = sym_option.map_or(true, |sym| {
                     sym.st_shndx != SHN_UNDEF || ELF32_ST_BIND(sym.st_info) == STB_LOCAL
@@ -275,7 +262,7 @@ impl<'a> Linker<'a> {
                             indirect_reloc: None,
                             pc_relative: true,
                             relocate: Some(Box::new(|target_word, value| {
-                                LittleEndian::write_u32(target_word, value);
+                                LittleEndian::write_u32(target_word, value)
                             })),
                         }),
 
@@ -286,9 +273,9 @@ impl<'a> Linker<'a> {
                             relocate: Some(Box::new(|target_word, value| {
                                 LittleEndian::write_u32(
                                     target_word,
-                                    (LittleEndian::read_u32(target_word) & 0x8000_0000)
+                                    (LittleEndian::read_u32(target_word) & 0x80000000)
-                                        | value & 0x7FFF_FFFF,
+                                        | value & 0x7FFFFFFF,
-                                );
+                                )
                             })),
                         }),
 
@@ -310,8 +297,8 @@ impl<'a> Linker<'a> {
                                 relocate: Some(Box::new(|target_word, value| {
                                     let auipc_raw = LittleEndian::read_u32(target_word);
                                     let auipc_insn =
-                                        (auipc_raw & 0xFFF) | ((value + 0x800) & 0xFFFF_F000);
+                                        (auipc_raw & 0xFFF) | ((value + 0x800) & 0xFFFFF000);
-                                    LittleEndian::write_u32(target_word, auipc_insn);
+                                    LittleEndian::write_u32(target_word, auipc_insn)
                                 })),
                             })
                         }
@@ -321,14 +308,15 @@ impl<'a> Linker<'a> {
                             indirect_reloc: None,
                             pc_relative: true,
                             relocate: Some(Box::new(|target_word, value| {
-                                LittleEndian::write_u32(target_word, value);
+                                LittleEndian::write_u32(target_word, value)
                             })),
                         }),
 
                         R_RISCV_PCREL_LO12_I => {
                             let expected_offset = sym_option.map_or(0, |sym| sym.st_value);
-                            let indirect_reloc =
+                            let indirect_reloc = relocs
-                                relocs.iter().find(|reloc| reloc.offset() == expected_offset)?;
+                                .iter()
+                                .find(|reloc| reloc.offset() == expected_offset)?;
                             Some(RelocInfo {
                                 defined_val: {
                                     let indirect_sym =
@@ -342,14 +330,14 @@ impl<'a> Linker<'a> {
                                     // Here, we convert to direct addressing
                                     // GOT reloc (indirect) -> lw + addi
                                     // PCREL reloc (direct) -> addi
-                                    let (lo_opcode, lo_funct3) = (0b001_0011, 0b000);
+                                    let (lo_opcode, lo_funct3) = (0b0010011, 0b000);
                                     let addi_lw_raw = LittleEndian::read_u32(target_word);
                                     let addi_insn = lo_opcode
                                         | (addi_lw_raw & 0xF8F80)
                                         | (lo_funct3 << 12)
                                         | ((value & 0xFFF) << 20);
 
-                                    LittleEndian::write_u32(target_word, addi_insn);
+                                    LittleEndian::write_u32(target_word, addi_insn)
                                 })),
                             })
                         }
@@ -366,7 +354,10 @@ impl<'a> Linker<'a> {
                             indirect_reloc: None,
                             pc_relative: false,
                             relocate: Some(Box::new(|target_word, value| {
-                                LittleEndian::write_u32(target_word, value);
+                                LittleEndian::write_u32(
+                                    target_word,
+                                    value,
+                                )
                             })),
                         }),
 
@@ -376,7 +367,7 @@ impl<'a> Linker<'a> {
                             pc_relative: false,
                             relocate: Some(Box::new(|target_word, value| {
                                 let old_value = LittleEndian::read_u32(target_word);
-                                LittleEndian::write_u32(target_word, old_value.wrapping_add(value));
+                                LittleEndian::write_u32(target_word, old_value.wrapping_add(value))
                             })),
                         }),
 
@@ -386,7 +377,7 @@ impl<'a> Linker<'a> {
                             pc_relative: false,
                             relocate: Some(Box::new(|target_word, value| {
                                 let old_value = LittleEndian::read_u32(target_word);
-                                LittleEndian::write_u32(target_word, old_value.wrapping_sub(value));
+                                LittleEndian::write_u32(target_word, old_value.wrapping_sub(value))
                             })),
                         }),
 
@@ -395,7 +386,10 @@ impl<'a> Linker<'a> {
                             indirect_reloc: None,
                             pc_relative: false,
                             relocate: Some(Box::new(|target_word, value| {
-                                LittleEndian::write_u16(target_word, value as u16);
+                                LittleEndian::write_u16(
+                                    target_word,
+                                    value as u16,
+                                )
                             })),
                         }),
 
@@ -408,7 +402,7 @@ impl<'a> Linker<'a> {
                                 LittleEndian::write_u16(
                                     target_word,
                                     old_value.wrapping_add(value as u16),
-                                );
+                                )
                             })),
                         }),
 
@@ -421,7 +415,7 @@ impl<'a> Linker<'a> {
                                 LittleEndian::write_u16(
                                     target_word,
                                     old_value.wrapping_sub(value as u16),
-                                );
+                                )
                             })),
                         }),
 
@@ -503,7 +497,7 @@ impl<'a> Linker<'a> {
 
                 if let Some(relocate) = reloc_info.relocate {
                     let target_word = &mut target_sec_image[reloc.offset() as usize..];
-                    relocate(target_word, value);
+                    relocate(target_word, value)
                 } else {
                     self.rela_dyn_relas.push(Elf32_Rela {
                         r_offset: rela_off,
@@ -551,18 +545,16 @@ impl<'a> Linker<'a> {
         let eh_frame_slice = eh_frame_rec.data.as_slice();
         // Prepare a new buffer to dodge borrow check
         let mut eh_frame_hdr_vec: Vec<u8> = vec![0; eh_frame_hdr_rec.shdr.sh_size as usize];
-        let eh_frame = EH_Frame::new(eh_frame_slice, eh_frame_rec.shdr.sh_offset);
+        let eh_frame = EH_Frame::new(eh_frame_slice, eh_frame_rec.shdr.sh_offset)
+            .map_err(|()| "cannot read EH frame")?;
         let mut eh_frame_hdr = EH_Frame_Hdr::new(
             eh_frame_hdr_vec.as_mut_slice(),
             eh_frame_hdr_rec.shdr.sh_offset,
             eh_frame_rec.shdr.sh_offset,
         );
-        eh_frame.cfi_records().flat_map(|cfi| cfi.fde_records()).for_each(&mut |(
+        eh_frame.cfi_records()
-            init_pos,
+            .flat_map(|cfi| cfi.fde_records())
-            virt_addr,
+            .for_each(&mut |(init_pos, virt_addr)| eh_frame_hdr.add_fde(init_pos, virt_addr));
-        )| {
-            eh_frame_hdr.add_fde(init_pos, virt_addr);
-        });
 
         // Sort FDE entries in .eh_frame_hdr
         eh_frame_hdr.finalize_fde();
@@ -576,129 +568,55 @@ impl<'a> Linker<'a> {
     }
 
     pub fn ld(data: &'a [u8]) -> Result<Vec<u8>, Error> {
-        fn allocate_rela_dyn<R: Relocatable>(
+        let ehdr = read_unaligned::<Elf32_Ehdr>(data, 0).map_err(|()| "cannot read ELF header")?;
-            linker: &Linker,
-            relocs: &[R],
-        ) -> Result<(usize, Vec<u32>), Error> {
-            let mut alloc_size = 0;
-            let mut rela_dyn_sym_indices = Vec::new();
-            for reloc in relocs {
-                if reloc.sym_info() as usize == STN_UNDEF {
-                    continue;
-                }
-                let sym: &Elf32_Sym = linker
-                    .symtab
-                    .get(reloc.sym_info() as usize)
-                    .ok_or("symbol out of bounds of symbol table")?;
-
-                match (linker.isa, reloc.type_info()) {
-                    // Absolute address relocations
-                    // A runtime relocation is needed to find the loading address
-                    (Isa::CortexA9, R_ARM_ABS32) | (Isa::RiscV32, R_RISCV_32) => {
-                        alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
-                        if ELF32_ST_BIND(sym.st_info) == STB_GLOBAL && sym.st_shndx == SHN_UNDEF {
-                            rela_dyn_sym_indices.push(reloc.sym_info());
-                        }
-                    }
-
-                    // Relative address relocations
-                    // Relay the relocation to the runtime linker only if the symbol is not defined
-                    (Isa::CortexA9, R_ARM_REL32 | R_ARM_PREL31 | R_ARM_TARGET2)
-                    | (
-                        Isa::RiscV32,
-                        R_RISCV_CALL_PLT | R_RISCV_PCREL_HI20 | R_RISCV_GOT_HI20 | R_RISCV_32_PCREL
-                        | R_RISCV_SET32 | R_RISCV_ADD32 | R_RISCV_SUB32 | R_RISCV_SET16
-                        | R_RISCV_ADD16 | R_RISCV_SUB16 | R_RISCV_SET8 | R_RISCV_ADD8
-                        | R_RISCV_SUB8 | R_RISCV_SET6 | R_RISCV_SUB6,
-                    ) => {
-                        if ELF32_ST_BIND(sym.st_info) == STB_GLOBAL && sym.st_shndx == SHN_UNDEF {
-                            alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
-                            rela_dyn_sym_indices.push(reloc.sym_info());
-                        }
-                    }
-
-                    // RISC-V: Lower 12-bits relocations
-                    // If the upper 20-bits relocation cannot be resolved,
-                    // this relocation will be relayed to the runtime linker.
-                    (Isa::RiscV32, R_RISCV_PCREL_LO12_I) => {
-                        // Find the HI20 relocation
-                        let indirect_reloc = relocs
-                            .iter()
-                            .find(|reloc| reloc.offset() == sym.st_value)
-                            .ok_or("malformatted LO12 relocation")?;
-                        let indirect_sym = linker.symtab[indirect_reloc.sym_info() as usize];
-                        if ELF32_ST_BIND(indirect_sym.st_info) == STB_GLOBAL
-                            && indirect_sym.st_shndx == SHN_UNDEF
-                        {
-                            alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
-                            rela_dyn_sym_indices.push(reloc.sym_info());
-                        }
-                    }
-
-                    _ => {
-                        println!("Relocation type 0x{:X?} is not supported", reloc.type_info());
-                        unimplemented!()
-                    }
-                }
-            }
-            Ok((alloc_size, rela_dyn_sym_indices))
-        }
-
-        let Some(ehdr) = read_unaligned::<Elf32_Ehdr>(data, 0) else {
-            Err("cannot read ELF header")?
-        };
         let isa = match ehdr.e_machine {
             EM_ARM => Isa::CortexA9,
             EM_RISCV => Isa::RiscV32,
             _ => return Err(Error::Parsing("unsupported architecture")),
         };
 
-        let Some(shdrs) =
+        let shdrs = get_ref_slice::<Elf32_Shdr>(data, ehdr.e_shoff as usize, ehdr.e_shnum as usize)
-            get_ref_slice::<Elf32_Shdr>(data, ehdr.e_shoff as usize, ehdr.e_shnum as usize)
+            .map_err(|()| "cannot read section header table")?;
-        else {
-            Err("cannot read section header table")?
-        };
 
         // Read .strtab
         let strtab_shdr = shdrs[ehdr.e_shstrndx as usize];
-        let Some(strtab) =
+        let strtab =
             get_ref_slice::<u8>(data, strtab_shdr.sh_offset as usize, strtab_shdr.sh_size as usize)
-        else {
+                .map_err(|()| "cannot read the string table from data")?;
-            Err("cannot read the string table from data")?
-        };
 
         // Read .symtab
         let symtab_shdr = shdrs
             .iter()
             .find(|shdr| shdr.sh_type as usize == SHT_SYMTAB)
             .ok_or(Error::Parsing("cannot find the symbol table"))?;
-        let Some(symtab) = get_ref_slice::<Elf32_Sym>(
+        let symtab = get_ref_slice::<Elf32_Sym>(
             data,
             symtab_shdr.sh_offset as usize,
             symtab_shdr.sh_size as usize / mem::size_of::<Elf32_Sym>(),
-        ) else {
+        )
-            Err("cannot read the symbol table from data")?
+        .map_err(|()| "cannot read the symbol table from data")?;
-        };
 
         // Section table for the .elf paired with the section name
         // To be formalized incrementally
         // Very hashmap-like structure, but the order matters, so it is a vector
-        let elf_shdrs = vec![SectionRecord {
+        let elf_shdrs = vec![
-            shdr: Elf32_Shdr {
+            SectionRecord {
-                sh_name: 0,
+                shdr: Elf32_Shdr {
-                sh_type: 0,
+                    sh_name: 0,
-                sh_flags: 0,
+                    sh_type: 0,
-                sh_addr: 0,
+                    sh_flags: 0,
-                sh_offset: 0,
+                    sh_addr: 0,
-                sh_size: 0,
+                    sh_offset: 0,
-                sh_link: 0,
+                    sh_size: 0,
-                sh_info: 0,
+                    sh_link: 0,
-                sh_addralign: 0,
+                    sh_info: 0,
-                sh_entsize: 0,
+                    sh_addralign: 0,
+                    sh_entsize: 0,
+                },
+                name: "",
+                data: vec![0; 0],
             },
-            name: "",
+        ];
-            data: vec![0; 0],
-        }];
         let elf_sh_data_off = mem::size_of::<Elf32_Ehdr>() + mem::size_of::<Elf32_Phdr>() * 5;
 
         // Image of the linked dynamic library, to be formalized incrementally
@@ -834,27 +752,21 @@ impl<'a> Linker<'a> {
             ($shdr: expr, $stmt: expr) => {
                 match $shdr.sh_type as usize {
                     SHT_RELA => {
-                        let Some(relocs) = get_ref_slice::<Elf32_Rela>(
+                        let relocs = get_ref_slice::<Elf32_Rela>(
                             data,
                             $shdr.sh_offset as usize,
                             $shdr.sh_size as usize / mem::size_of::<Elf32_Rela>(),
-                        ) else {
+                        )
-                            Err("cannot parse relocations")?
+                        .map_err(|()| "cannot parse relocations")?;
-                        };
-
-                        #[allow(clippy::redundant_closure_call)]
                         $stmt(relocs)
                     }
                     SHT_REL => {
-                        let Some(relocs) = get_ref_slice::<Elf32_Rel>(
+                        let relocs = get_ref_slice::<Elf32_Rel>(
                             data,
                             $shdr.sh_offset as usize,
                             $shdr.sh_size as usize / mem::size_of::<Elf32_Rel>(),
-                        ) else {
+                        )
-                            Err("cannot parse relocations")?
+                        .map_err(|()| "cannot parse relocations")?;
-                        };
-
-                        #[allow(clippy::redundant_closure_call)]
                         $stmt(relocs)
                     }
                     _ => unreachable!(),
@@ -862,6 +774,84 @@ impl<'a> Linker<'a> {
             };
         }
 
+        fn allocate_rela_dyn<R: Relocatable>(
+            linker: &Linker,
+            relocs: &[R],
+        ) -> Result<(usize, Vec<u32>), Error> {
+            let mut alloc_size = 0;
+            let mut rela_dyn_sym_indices = Vec::new();
+            for reloc in relocs {
+                if reloc.sym_info() as usize == STN_UNDEF {
+                    continue;
+                }
+                let sym: &Elf32_Sym = linker
+                    .symtab
+                    .get(reloc.sym_info() as usize)
+                    .ok_or("symbol out of bounds of symbol table")?;
+
+                match (linker.isa, reloc.type_info()) {
+                    // Absolute address relocations
+                    // A runtime relocation is needed to find the loading address
+                    (Isa::CortexA9, R_ARM_ABS32) | (Isa::RiscV32, R_RISCV_32) => {
+                        alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
+                        if ELF32_ST_BIND(sym.st_info) == STB_GLOBAL && sym.st_shndx == SHN_UNDEF {
+                            rela_dyn_sym_indices.push(reloc.sym_info());
+                        }
+                    }
+
+                    // Relative address relocations
+                    // Relay the relocation to the runtime linker only if the symbol is not defined
+                    (Isa::CortexA9, R_ARM_REL32)
+                    | (Isa::CortexA9, R_ARM_PREL31)
+                    | (Isa::CortexA9, R_ARM_TARGET2)
+                    | (Isa::RiscV32, R_RISCV_CALL_PLT)
+                    | (Isa::RiscV32, R_RISCV_PCREL_HI20)
+                    | (Isa::RiscV32, R_RISCV_GOT_HI20)
+                    | (Isa::RiscV32, R_RISCV_32_PCREL)
+                    | (Isa::RiscV32, R_RISCV_SET32)
+                    | (Isa::RiscV32, R_RISCV_ADD32)
+                    | (Isa::RiscV32, R_RISCV_SUB32)
+                    | (Isa::RiscV32, R_RISCV_SET16)
+                    | (Isa::RiscV32, R_RISCV_ADD16)
+                    | (Isa::RiscV32, R_RISCV_SUB16)
+                    | (Isa::RiscV32, R_RISCV_SET8)
+                    | (Isa::RiscV32, R_RISCV_ADD8)
+                    | (Isa::RiscV32, R_RISCV_SUB8)
+                    | (Isa::RiscV32, R_RISCV_SET6)
+                    | (Isa::RiscV32, R_RISCV_SUB6) => {
+                        if ELF32_ST_BIND(sym.st_info) == STB_GLOBAL && sym.st_shndx == SHN_UNDEF {
+                            alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
+                            rela_dyn_sym_indices.push(reloc.sym_info());
+                        }
+                    }
+
+                    // RISC-V: Lower 12-bits relocations
+                    // If the upper 20-bits relocation cannot be resolved,
+                    // this relocation will be relayed to the runtime linker.
+                    (Isa::RiscV32, R_RISCV_PCREL_LO12_I) => {
+                        // Find the HI20 relocation
+                        let indirect_reloc = relocs
+                            .iter()
+                            .find(|reloc| reloc.offset() == sym.st_value)
+                            .ok_or("malformatted LO12 relocation")?;
+                        let indirect_sym = linker.symtab[indirect_reloc.sym_info() as usize];
+                        if ELF32_ST_BIND(indirect_sym.st_info) == STB_GLOBAL
+                            && indirect_sym.st_shndx == SHN_UNDEF
+                        {
+                            alloc_size += mem::size_of::<Elf32_Rela>(); // FIXME: RELA vs REL
+                            rela_dyn_sym_indices.push(reloc.sym_info());
+                        }
+                    }
+
+                    _ => {
+                        println!("Relocation type 0x{:X?} is not supported", reloc.type_info());
+                        unimplemented!()
+                    }
+                }
+            }
+            Ok((alloc_size, rela_dyn_sym_indices))
+        }
+
         for shdr in shdrs
             .iter()
             .filter(|shdr| shdr.sh_type as usize == SHT_REL || shdr.sh_type as usize == SHT_RELA)
@@ -889,7 +879,7 @@ impl<'a> Linker<'a> {
         }
 
         // Avoid symbol duplication
-        rela_dyn_sym_indices.sort_unstable();
+        rela_dyn_sym_indices.sort();
         rela_dyn_sym_indices.dedup();
 
         if rela_dyn_size != 0 {
@@ -1020,9 +1010,7 @@ impl<'a> Linker<'a> {
         let mut hash_bucket: Vec<u32> = vec![0; dynsym.len()];
         let mut hash_chain: Vec<u32> = vec![0; dynsym.len()];
 
-        for (sym_index, (str_start, str_end)) in
+        for (sym_index, (str_start, str_end)) in dynsym_names.iter().enumerate().take(dynsym.len()).skip(1) {
-            dynsym_names.iter().enumerate().take(dynsym.len()).skip(1)
-        {
             let hash = elf_hash(&dynstr[*str_start..*str_end]);
             let mut hash_index = hash as usize % hash_bucket.len();
 
@@ -1074,7 +1062,7 @@ impl<'a> Linker<'a> {
                 sh_entsize: mem::size_of::<Elf32_Sym>() as Elf32_Word,
             },
             ".dynsym",
-            from_struct_slice(&dynsym),
+            from_struct_vec(dynsym),
         );
         let hash_elf_index = linker.load_section(
             &Elf32_Shdr {
@@ -1090,7 +1078,7 @@ impl<'a> Linker<'a> {
                 sh_entsize: 4,
             },
             ".hash",
-            from_struct_slice(&hash),
+            from_struct_vec(hash),
         );
 
         // Link .rela.dyn header to the .dynsym header
@@ -1189,7 +1177,7 @@ impl<'a> Linker<'a> {
         };
 
         let dynamic_elf_index =
-            linker.load_section(&dynamic_shdr, ".dynamic", from_struct_slice(&dyn_entries));
+            linker.load_section(&dynamic_shdr, ".dynamic", from_struct_vec(dyn_entries));
 
         let last_w_sec_elf_index = linker.elf_shdrs.len() - 1;
 
@@ -1265,9 +1253,7 @@ impl<'a> Linker<'a> {
             update_dynsym_record!(b"__bss_start", bss_offset, bss_elf_index as Elf32_Section);
             update_dynsym_record!(b"_end", bss_offset, bss_elf_index as Elf32_Section);
         } else {
-            for (bss_iter_index, &(bss_section_index, section_name)) in
+            for (bss_iter_index, &(bss_section_index, section_name)) in bss_index_vec.iter().enumerate() {
-                bss_index_vec.iter().enumerate()
-            {
                 let shdr = &shdrs[bss_section_index];
                 let bss_elf_index = linker.load_section(
                     shdr,
@@ -1340,7 +1326,7 @@ impl<'a> Linker<'a> {
         // Prepare a STRTAB to hold the names of section headers
         // Fix the sh_name field of the section headers
         let mut shstrtab = Vec::new();
-        for shdr_rec in &mut linker.elf_shdrs {
+        for shdr_rec in linker.elf_shdrs.iter_mut() {
             let shstrtab_index = shstrtab.len();
             shstrtab.extend(shdr_rec.name.as_bytes());
             shstrtab.push(0);
@@ -1381,17 +1367,20 @@ impl<'a> Linker<'a> {
         let alignment = (4 - (linker.image.len() % 4)) % 4;
         let sec_headers_offset = linker.image.len() + alignment;
         linker.image.extend(vec![0; alignment]);
-        for rec in &linker.elf_shdrs {
+        for rec in linker.elf_shdrs.iter() {
             let shdr = rec.shdr;
             linker.image.extend(unsafe {
-                slice::from_raw_parts(ptr::addr_of!(shdr).cast(), mem::size_of::<Elf32_Shdr>())
+                slice::from_raw_parts(
+                    &shdr as *const Elf32_Shdr as *const u8,
+                    mem::size_of::<Elf32_Shdr>(),
+                )
             });
         }
 
         // Update the PHDRs
         let phdr_offset = mem::size_of::<Elf32_Ehdr>();
         unsafe {
-            let phdr_ptr = linker.image.as_mut_ptr().add(phdr_offset).cast();
+            let phdr_ptr = linker.image.as_mut_ptr().add(phdr_offset) as *mut Elf32_Phdr;
             let phdr_slice = slice::from_raw_parts_mut(phdr_ptr, 5);
             // List of program headers:
             // 1. ELF headers & program headers
@@ -1468,7 +1457,7 @@ impl<'a> Linker<'a> {
         }
 
         // Update the EHDR
-        let ehdr_ptr = linker.image.as_mut_ptr().cast();
+        let ehdr_ptr = linker.image.as_mut_ptr() as *mut Elf32_Ehdr;
         unsafe {
             *ehdr_ptr = Elf32_Ehdr {
                 e_ident: ehdr.e_ident,

nac3parser/Cargo.toml

@@ -8,15 +8,15 @@ license = "MIT"
 edition = "2021"
 
 [build-dependencies]
-lalrpop = "0.22"
+lalrpop = "0.20"
 
 [dependencies]
 nac3ast = { path = "../nac3ast" }
-lalrpop-util = "0.22"
+lalrpop-util = "0.20"
 log = "0.4"
 unic-emoji-char = "0.9"
 unic-ucd-ident  = "0.9"
-unicode_names2 = "1.3"
+unicode_names2 = "1.0"
 phf = { version = "0.11", features = ["macros"] }
 ahash = "0.8"
 

nac3parser/src/config_comment_helper.rs

@@ -1,17 +1,15 @@
-use crate::{
-    ast::{Ident, Location},
-    error::*,
-    token::Tok,
-};
 use lalrpop_util::ParseError;
-
 use nac3ast::*;
+use crate::ast::Ident;
+use crate::ast::Location;
+use crate::token::Tok;
+use crate::error::*;
 
 pub fn make_config_comment(
     com_loc: Location,
     stmt_loc: Location,
     nac3com_above: Vec<(Ident, Tok)>,
-    nac3com_end: Option<Ident>,
+    nac3com_end: Option<Ident>
 ) -> Result<Vec<Ident>, ParseError<Location, Tok, LexicalError>> {
     if com_loc.column() != stmt_loc.column() && !nac3com_above.is_empty() {
         return Err(ParseError::User {
@@ -19,25 +17,24 @@ pub fn make_config_comment(
                 location: com_loc,
                 error: LexicalErrorType::OtherError(
                     format!(
-                        "config comment at top must have the same indentation with what it applies (comment at {com_loc}, statement at {stmt_loc})",
+                        "config comment at top must have the same indentation with what it applies (comment at {}, statement at {})",
+                        com_loc,
+                        stmt_loc,
                     )
                 )
             }
-        });
+        })
     };
-    Ok(nac3com_above
+    Ok(
-        .into_iter()
+        nac3com_above
-        .map(|(com, _)| com)
+            .into_iter()
-        .chain(nac3com_end.map_or_else(|| vec![].into_iter(), |com| vec![com].into_iter()))
+            .map(|(com, _)| com)
-        .collect())
+            .chain(nac3com_end.map_or_else(|| vec![].into_iter(), |com| vec![com].into_iter()))
+            .collect()
+    )
 }
 
-pub fn handle_small_stmt<U>(
+pub fn handle_small_stmt<U>(stmts: &mut [Stmt<U>], nac3com_above: Vec<(Ident, Tok)>, nac3com_end: Option<Ident>, com_above_loc: Location) -> Result<(), ParseError<Location, Tok, LexicalError>> {
-    stmts: &mut [Stmt<U>],
-    nac3com_above: Vec<(Ident, Tok)>,
-    nac3com_end: Option<Ident>,
-    com_above_loc: Location,
-) -> Result<(), ParseError<Location, Tok, LexicalError>> {
     if com_above_loc.column() != stmts[0].location.column() && !nac3com_above.is_empty() {
         return Err(ParseError::User {
             error: LexicalError {
@@ -50,12 +47,17 @@ pub fn handle_small_stmt<U>(
                     )
                 )
             }
-        });
+        })
     }
-    apply_config_comments(&mut stmts[0], nac3com_above.into_iter().map(|(com, _)| com).collect());
+    apply_config_comments(
+        &mut stmts[0],
+        nac3com_above
+            .into_iter()
+            .map(|(com, _)| com).collect()
+    );
     apply_config_comments(
         stmts.last_mut().unwrap(),
-        nac3com_end.map_or_else(Vec::new, |com| vec![com]),
+        nac3com_end.map_or_else(Vec::new, |com| vec![com])
     );
     Ok(())
 }
@@ -70,7 +72,7 @@ fn apply_config_comments<U>(stmt: &mut Stmt<U>, comments: Vec<Ident>) {
         | StmtKind::AnnAssign { config_comment, .. }
         | StmtKind::Break { config_comment, .. }
         | StmtKind::Continue { config_comment, .. }
-        | StmtKind::Return { config_comment, .. }
+        | StmtKind::Return { config_comment, .. } 
         | StmtKind::Raise { config_comment, .. }
         | StmtKind::Import { config_comment, .. }
         | StmtKind::ImportFrom { config_comment, .. }
@@ -78,8 +80,6 @@ fn apply_config_comments<U>(stmt: &mut Stmt<U>, comments: Vec<Ident>) {
         | StmtKind::Nonlocal { config_comment, .. }
         | StmtKind::Assert { config_comment, .. } => config_comment.extend(comments),
 
-        _ => {
+        _ => { unreachable!("only small statements should call this function") }
-            unreachable!("only small statements should call this function")
-        }
     }
 }