Cargo.lock

@@ -126,9 +126,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "cc"
-version = "1.1.30"
+version = "1.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b16803a61b81d9eabb7eae2588776c4c1e584b738ede45fdbb4c972cec1e9945"
+checksum = "812acba72f0a070b003d3697490d2b55b837230ae7c6c6497f05cc2ddbb8d938"
 dependencies = [
  "shlex",
 ]
@@ -141,9 +141,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.5.20"
+version = "4.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97f376d85a664d5837dbae44bf546e6477a679ff6610010f17276f686d867e8"
+checksum = "7be5744db7978a28d9df86a214130d106a89ce49644cbc4e3f0c22c3fba30615"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -151,9 +151,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.20"
+version = "4.5.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19bc80abd44e4bed93ca373a0704ccbd1b710dc5749406201bb018272808dc54"
+checksum = "a5fbc17d3ef8278f55b282b2a2e75ae6f6c7d4bb70ed3d0382375104bfafdb4b"
 dependencies = [
  "anstream",
  "anstyle",
@@ -547,9 +547,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.161"
+version = "0.2.159"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
+checksum = "561d97a539a36e26a9a5fad1ea11a3039a67714694aaa379433e580854bc3dc5"
 
 [[package]]
 name = "libloading"
@@ -698,9 +698,12 @@ checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
 
 [[package]]
 name = "once_cell"
-version = "1.20.2"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
+checksum = "82881c4be219ab5faaf2ad5e5e5ecdff8c66bd7402ca3160975c93b24961afd1"
+dependencies = [
+ "portable-atomic",
+]
 
 [[package]]
 name = "parking_lot"
@@ -825,9 +828,9 @@ checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.88"
+version = "1.0.86"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c3a7fc5db1e57d5a779a352c8cdb57b29aa4c40cc69c3a68a7fedc815fbf2f9"
+checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
 dependencies = [
  "unicode-ident",
 ]
@@ -1014,9 +1017,9 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.18"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
+checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
 
 [[package]]
 name = "ryu"
@@ -1067,9 +1070,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.129"
+version = "1.0.128"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6dbcf9b78a125ee667ae19388837dd12294b858d101fdd393cb9d5501ef09eb2"
+checksum = "6ff5456707a1de34e7e37f2a6fd3d3f808c318259cbd01ab6377795054b483d8"
 dependencies = [
  "itoa",
  "memchr",

nac3artiq/src/codegen.rs

@@ -37,7 +37,7 @@ use nac3core::{
     typecheck::typedef::{iter_type_vars, FunSignature, FuncArg, Type, TypeEnum, VarMap},
 };
 
-use super::{symbol_resolver::InnerResolver, timeline::TimeFns};
+use crate::{symbol_resolver::InnerResolver, timeline::TimeFns};
 
 /// The parallelism mode within a block.
 #[derive(Copy, Clone, Eq, PartialEq)]

nac3artiq/src/lib.rs

@@ -65,11 +65,13 @@ use nac3core::{
 };
 use nac3ld::Linker;
 
-use codegen::{
+use crate::{
-    attributes_writeback, gen_core_log, gen_rtio_log, rpc_codegen_callback, ArtiqCodeGenerator,
+    codegen::{
+        attributes_writeback, gen_core_log, gen_rtio_log, rpc_codegen_callback, ArtiqCodeGenerator,
+    },
+    symbol_resolver::{DeferredEvaluationStore, InnerResolver, PythonHelper, Resolver},
+    timeline::TimeFns,
 };
-use symbol_resolver::{DeferredEvaluationStore, InnerResolver, PythonHelper, Resolver};
-use timeline::TimeFns;
 
 mod codegen;
 mod symbol_resolver;

nac3artiq/src/symbol_resolver.rs

@@ -37,7 +37,7 @@ use nac3core::{
     },
 };
 
-use super::PrimitivePythonId;
+use crate::PrimitivePythonId;
 
 pub enum PrimitiveValue {
     I32(i32),

nac3core/src/codegen/builtin_fns.rs

@@ -5,23 +5,24 @@ use inkwell::{
 };
 use itertools::Itertools;
 
-use super::{
-    classes::{
-        ArrayLikeValue, NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
-        UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
-    },
-    expr::destructure_range,
-    extern_fns, irrt,
-    irrt::calculate_len_for_slice_range,
-    llvm_intrinsics,
-    macros::codegen_unreachable,
-    numpy,
-    numpy::ndarray_elementwise_unaryop_impl,
-    stmt::gen_for_callback_incrementing,
-    CodeGenContext, CodeGenerator,
-};
 use crate::{
-    toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys},
+    codegen::{
+        classes::{
+            ArrayLikeValue, NDArrayValue, ProxyValue, RangeValue, TypedArrayLikeAccessor,
+            UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
+        },
+        expr::destructure_range,
+        extern_fns, irrt,
+        irrt::calculate_len_for_slice_range,
+        llvm_intrinsics,
+        macros::codegen_unreachable,
+        numpy,
+        numpy::ndarray_elementwise_unaryop_impl,
+        stmt::gen_for_callback_incrementing,
+        CodeGenContext, CodeGenerator,
+    },
+    toplevel::helper::PrimDef,
+    toplevel::numpy::unpack_ndarray_var_tys,
     typecheck::typedef::{Type, TypeEnum},
 };
 

nac3core/src/codegen/classes.rs

@@ -5,7 +5,7 @@ use inkwell::{
     AddressSpace, IntPredicate,
 };
 
-use super::{
+use crate::codegen::{
     irrt::{call_ndarray_calc_size, call_ndarray_flatten_index},
     llvm_intrinsics::call_int_umin,
     stmt::gen_for_callback_incrementing,

nac3core/src/codegen/expr.rs

@@ -18,27 +18,27 @@ use nac3parser::ast::{
     Unaryop,
 };
 
-use super::{
-    classes::{
-        ArrayLikeIndexer, ArrayLikeValue, ListType, ListValue, NDArrayValue, ProxyType, ProxyValue,
-        RangeValue, TypedArrayLikeAccessor, UntypedArrayLikeAccessor,
-    },
-    concrete_type::{ConcreteFuncArg, ConcreteTypeEnum, ConcreteTypeStore},
-    gen_in_range_check, get_llvm_abi_type, get_llvm_type, get_va_count_arg_name,
-    irrt::*,
-    llvm_intrinsics::{
-        call_expect, call_float_floor, call_float_pow, call_float_powi, call_int_smax,
-        call_int_umin, call_memcpy_generic,
-    },
-    macros::codegen_unreachable,
-    need_sret, numpy,
-    stmt::{
-        gen_for_callback_incrementing, gen_if_callback, gen_if_else_expr_callback, gen_raise,
-        gen_var,
-    },
-    CodeGenContext, CodeGenTask, CodeGenerator,
-};
 use crate::{
+    codegen::{
+        classes::{
+            ArrayLikeIndexer, ArrayLikeValue, ListType, ListValue, NDArrayValue, ProxyType,
+            ProxyValue, RangeValue, TypedArrayLikeAccessor, UntypedArrayLikeAccessor,
+        },
+        concrete_type::{ConcreteFuncArg, ConcreteTypeEnum, ConcreteTypeStore},
+        gen_in_range_check, get_llvm_abi_type, get_llvm_type, get_va_count_arg_name,
+        irrt::*,
+        llvm_intrinsics::{
+            call_expect, call_float_floor, call_float_pow, call_float_powi, call_int_smax,
+            call_int_umin, call_memcpy_generic,
+        },
+        macros::codegen_unreachable,
+        need_sret, numpy,
+        stmt::{
+            gen_for_callback_incrementing, gen_if_callback, gen_if_else_expr_callback, gen_raise,
+            gen_var,
+        },
+        CodeGenContext, CodeGenTask, CodeGenerator,
+    },
     symbol_resolver::{SymbolValue, ValueEnum},
     toplevel::{
         helper::PrimDef,
@@ -1777,12 +1777,7 @@ pub fn gen_unaryop_expr_with_values<'ctx, G: CodeGenerator>(
             ast::Unaryop::Invert => ctx.builder.build_not(val, "not").map(Into::into).unwrap(),
             ast::Unaryop::Not => ctx
                 .builder
-                .build_int_compare(
+                .build_xor(val, val.get_type().const_all_ones(), "not")
-                    inkwell::IntPredicate::EQ,
-                    val,
-                    val.get_type().const_zero(),
-                    "not",
-                )
                 .map(Into::into)
                 .unwrap(),
             ast::Unaryop::UAdd => val.into(),
@@ -2891,31 +2886,7 @@ pub fn gen_expr<'ctx, G: CodeGenerator>(
             Some((_, Some(static_value), _)) => ValueEnum::Static(static_value.clone()),
             None => {
                 let resolver = ctx.resolver.clone();
-                let value = resolver.get_symbol_value(*id, ctx, generator).unwrap();
+                resolver.get_symbol_value(*id, ctx, generator).unwrap()
-
-                let globals = ctx
-                    .top_level
-                    .definitions
-                    .read()
-                    .iter()
-                    .filter_map(|def| {
-                        if let TopLevelDef::Variable { simple_name, ty, .. } = &*def.read() {
-                            Some((*simple_name, *ty))
-                        } else {
-                            None
-                        }
-                    })
-                    .collect_vec();
-
-                if let Some((_, ty)) = globals.iter().find(|(name, _)| name == id) {
-                    let ptr = value
-                        .to_basic_value_enum(ctx, generator, *ty)
-                        .map(BasicValueEnum::into_pointer_value)?;
-
-                    ctx.builder.build_load(ptr, id.to_string().as_str()).map(Into::into).unwrap()
-                } else {
-                    value
-                }
             }
         },
         ExprKind::List { elts, .. } => {

nac3core/src/codegen/extern_fns.rs

@@ -4,7 +4,7 @@ use inkwell::{
 };
 use itertools::Either;
 
-use super::CodeGenContext;
+use crate::codegen::CodeGenContext;
 
 /// Macro to generate extern function
 /// Both function return type and function parameter type are `FloatValue`

nac3core/src/codegen/generator.rs

@@ -6,8 +6,8 @@ use inkwell::{
 
 use nac3parser::ast::{Expr, Stmt, StrRef};
 
-use super::{bool_to_i1, bool_to_i8, classes::ArraySliceValue, expr::*, stmt::*, CodeGenContext};
 use crate::{
+    codegen::{bool_to_i1, bool_to_i8, classes::ArraySliceValue, expr::*, stmt::*, CodeGenContext},
     symbol_resolver::ValueEnum,
     toplevel::{DefinitionId, TopLevelDef},
     typecheck::typedef::{FunSignature, Type},

nac3core/src/codegen/llvm_intrinsics.rs

@@ -7,7 +7,7 @@ use inkwell::{
 };
 use itertools::Either;
 
-use super::CodeGenContext;
+use crate::codegen::CodeGenContext;
 
 /// Returns the string representation for the floating-point type `ft` when used in intrinsic
 /// functions.

nac3core/src/codegen/mod.rs

@@ -29,6 +29,7 @@ use parking_lot::{Condvar, Mutex};
 use nac3parser::ast::{Location, Stmt, StrRef};
 
 use crate::{
+    codegen::classes::{ListType, NDArrayType, ProxyType, RangeType},
     symbol_resolver::{StaticValue, SymbolResolver},
     toplevel::{helper::PrimDef, numpy::unpack_ndarray_var_tys, TopLevelContext, TopLevelDef},
     typecheck::{
@@ -36,9 +37,6 @@ use crate::{
         typedef::{CallId, FuncArg, Type, TypeEnum, Unifier},
     },
 };
-use classes::{ListType, NDArrayType, ProxyType, RangeType};
-use concrete_type::{ConcreteType, ConcreteTypeEnum, ConcreteTypeStore};
-pub use generator::{CodeGenerator, DefaultCodeGenerator};
 
 pub mod builtin_fns;
 pub mod classes;
@@ -54,6 +52,9 @@ pub mod stmt;
 #[cfg(test)]
 mod test;
 
+use concrete_type::{ConcreteType, ConcreteTypeEnum, ConcreteTypeStore};
+pub use generator::{CodeGenerator, DefaultCodeGenerator};
+
 mod macros {
     /// Codegen-variant of [`std::unreachable`] which accepts an instance of [`CodeGenContext`] as
     /// its first argument to provide Python source information to indicate the codegen location

nac3core/src/codegen/numpy.rs

@@ -6,23 +6,24 @@ use inkwell::{
 
 use nac3parser::ast::{Operator, StrRef};
 
-use super::{
-    classes::{
-        ArrayLikeIndexer, ArrayLikeValue, ListType, ListValue, NDArrayType, NDArrayValue,
-        ProxyType, ProxyValue, TypedArrayLikeAccessor, TypedArrayLikeAdapter,
-        TypedArrayLikeMutator, UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
-    },
-    expr::gen_binop_expr_with_values,
-    irrt::{
-        calculate_len_for_slice_range, call_ndarray_calc_broadcast,
-        call_ndarray_calc_broadcast_index, call_ndarray_calc_nd_indices, call_ndarray_calc_size,
-    },
-    llvm_intrinsics::{self, call_memcpy_generic},
-    macros::codegen_unreachable,
-    stmt::{gen_for_callback_incrementing, gen_for_range_callback, gen_if_else_expr_callback},
-    CodeGenContext, CodeGenerator,
-};
 use crate::{
+    codegen::{
+        classes::{
+            ArrayLikeIndexer, ArrayLikeValue, ListType, ListValue, NDArrayType, NDArrayValue,
+            ProxyType, ProxyValue, TypedArrayLikeAccessor, TypedArrayLikeAdapter,
+            TypedArrayLikeMutator, UntypedArrayLikeAccessor, UntypedArrayLikeMutator,
+        },
+        expr::gen_binop_expr_with_values,
+        irrt::{
+            calculate_len_for_slice_range, call_ndarray_calc_broadcast,
+            call_ndarray_calc_broadcast_index, call_ndarray_calc_nd_indices,
+            call_ndarray_calc_size,
+        },
+        llvm_intrinsics::{self, call_memcpy_generic},
+        macros::codegen_unreachable,
+        stmt::{gen_for_callback_incrementing, gen_for_range_callback, gen_if_else_expr_callback},
+        CodeGenContext, CodeGenerator,
+    },
     symbol_resolver::ValueEnum,
     toplevel::{
         helper::PrimDef,

nac3core/src/codegen/test.rs

@@ -15,13 +15,13 @@ use nac3parser::{
 };
 use parking_lot::RwLock;
 
-use super::{
-    classes::{ListType, NDArrayType, ProxyType, RangeType},
-    concrete_type::ConcreteTypeStore,
-    CodeGenContext, CodeGenLLVMOptions, CodeGenTargetMachineOptions, CodeGenTask, CodeGenerator,
-    DefaultCodeGenerator, WithCall, WorkerRegistry,
-};
 use crate::{
+    codegen::{
+        classes::{ListType, NDArrayType, ProxyType, RangeType},
+        concrete_type::ConcreteTypeStore,
+        CodeGenContext, CodeGenLLVMOptions, CodeGenTargetMachineOptions, CodeGenTask,
+        CodeGenerator, DefaultCodeGenerator, WithCall, WorkerRegistry,
+    },
     symbol_resolver::{SymbolResolver, ValueEnum},
     toplevel::{
         composer::{ComposerConfig, TopLevelComposer},

nac3core/src/toplevel/builtins.rs

@@ -11,8 +11,7 @@ use itertools::Either;
 use strum::IntoEnumIterator;
 
 use super::{
-    helper::{debug_assert_prim_is_allowed, make_exception_fields, PrimDef, PrimDefDetails},
+    helper::{debug_assert_prim_is_allowed, make_exception_fields, PrimDefDetails},
-    numpy::make_ndarray_ty,
     *,
 };
 use crate::{
@@ -23,6 +22,7 @@ use crate::{
         stmt::exn_constructor,
     },
     symbol_resolver::SymbolValue,
+    toplevel::{helper::PrimDef, numpy::make_ndarray_ty},
     typecheck::typedef::{into_var_map, iter_type_vars, TypeVar, VarMap},
 };
 

nac3core/src/toplevel/composer.rs

@@ -1,6 +1,6 @@
 use std::rc::Rc;
 
-use nac3parser::ast::{fold::Fold, ExprKind, Ident};
+use nac3parser::ast::{fold::Fold, ExprKind};
 
 use super::*;
 use crate::{
@@ -382,34 +382,54 @@ impl TopLevelComposer {
                 ))
             }
 
-            ast::StmtKind::Assign { .. } => {
-                // Assignment statements can assign to (and therefore create) more than one 
-                // variable, but this function only allows returning one set of symbol information.
-                // We want to avoid changing this to return a `Vec` of symbol info, as this would 
-                // require `iter().next().unwrap()` on every variable created from a non-Assign 
-                // statement.
-                //
-                // Make callers use `register_top_level_var` instead, as it provides more
-                // fine-grained control over which symbols to register, while also simplifying the
-                // usage of this function.
-                panic!("Registration of top-level Assign statements must use TopLevelComposer::register_top_level_var (at {})", ast.location);
-            }
-
             ast::StmtKind::AnnAssign { target, annotation, .. } => {
                 let ExprKind::Name { id: name, .. } = target.node else {
                     return Err(format!(
                         "global variable declaration must be an identifier (at {})",
-                        target.location
+                        ast.location
                     ));
                 };
 
-                self.register_top_level_var(
+                if self.keyword_list.contains(&name) {
+                    return Err(format!(
+                        "cannot use keyword `{}` as a class name (at {})",
+                        name,
+                        ast.location
+                    ));
+                }
+
+                let global_var_name = if mod_path.is_empty() {
+                    name.to_string()
+                } else {
+                    format!("{mod_path}.{name}")
+                };
+                if !defined_names.insert(global_var_name.clone()) {
+                    return Err(format!(
+                        "global variable `{}` defined twice (at {})",
+                        global_var_name,
+                        ast.location
+                    ));
+                }
+
+                let ty_to_be_unified = self.unifier.get_dummy_var().ty;
+                self.definition_ast_list.push((
+                    RwLock::new(Self::make_top_level_variable_def(
+                        global_var_name,
+                        name,
+                        // dummy here, unify with correct type later,
+                        ty_to_be_unified,
+                        *(annotation.clone()),
+                        resolver,
+                        Some(ast.location),
+                    )).into(),
+                    None,
+                ));
+
+                Ok((
                     name,
-                    Some(annotation.as_ref().clone()),
+                    DefinitionId(self.definition_ast_list.len() - 1),
-                    resolver,
+                    Some(ty_to_be_unified),
-                    mod_path,
+                ))
-                    target.location,
-                )
             }
 
             _ => Err(format!(
@@ -419,50 +439,6 @@ impl TopLevelComposer {
         }
     }
 
-    /// Registers a top-level variable with the given `name` into the composer.
-    ///
-    /// `annotation` - The type annotation of the top-level variable, or [`None`] if no type
-    /// annotation is provided.
-    /// `location` - The location of the top-level variable.
-    pub fn register_top_level_var(
-        &mut self,
-        name: Ident,
-        annotation: Option<Expr>,
-        resolver: Option<Arc<dyn SymbolResolver + Send + Sync>>,
-        mod_path: &str,
-        location: Location,
-    ) -> Result<(StrRef, DefinitionId, Option<Type>), String> {
-        if self.keyword_list.contains(&name) {
-            return Err(format!("cannot use keyword `{name}` as a class name (at {location})"));
-        }
-
-        let global_var_name =
-            if mod_path.is_empty() { name.to_string() } else { format!("{mod_path}.{name}") };
-
-        if !self.defined_names.insert(global_var_name.clone()) {
-            return Err(format!(
-                "global variable `{global_var_name}` defined twice (at {location})"
-            ));
-        }
-
-        let ty_to_be_unified = self.unifier.get_dummy_var().ty;
-        self.definition_ast_list.push((
-            RwLock::new(Self::make_top_level_variable_def(
-                global_var_name,
-                name,
-                // dummy here, unify with correct type later,
-                ty_to_be_unified,
-                annotation,
-                resolver,
-                Some(location),
-            ))
-            .into(),
-            None,
-        ));
-
-        Ok((name, DefinitionId(self.definition_ast_list.len() - 1), Some(ty_to_be_unified)))
-    }
-
     pub fn start_analysis(&mut self, inference: bool) -> Result<(), HashSet<String>> {
         self.analyze_top_level_class_type_var()?;
         self.analyze_top_level_class_bases()?;
@@ -2273,8 +2249,9 @@ impl TopLevelComposer {
         let primitives_store = &self.primitives_ty;
 
         let mut analyze = |variable_def: &Arc<RwLock<TopLevelDef>>| -> Result<_, HashSet<String>> {
-            let TopLevelDef::Variable { ty: dummy_ty, ty_decl, resolver, loc, .. } =
+            let variable_def = &mut *variable_def.write();
-                &*variable_def.read()
+
+            let TopLevelDef::Variable { ty: dummy_ty, ty_decl, resolver, loc, .. } = variable_def
             else {
                 // not top level variable def, skip
                 return Ok(());
@@ -2282,28 +2259,25 @@ impl TopLevelComposer {
 
             let resolver = &**resolver.as_ref().unwrap();
 
-            if let Some(ty_decl) = ty_decl {
+            let ty_annotation = parse_ast_to_type_annotation_kinds(
-                let ty_annotation = parse_ast_to_type_annotation_kinds(
+                resolver,
-                    resolver,
+                &temp_def_list,
-                    &temp_def_list,
+                unifier,
-                    unifier,
+                primitives_store,
-                    primitives_store,
+                ty_decl,
-                    ty_decl,
+                HashMap::new(),
-                    HashMap::new(),
+            )?;
-                )?;
+            let ty_from_ty_annotation = get_type_from_type_annotation_kinds(
-                let ty_from_ty_annotation = get_type_from_type_annotation_kinds(
+                &temp_def_list,
-                    &temp_def_list,
+                unifier,
-                    unifier,
+                primitives_store,
-                    primitives_store,
+                &ty_annotation,
-                    &ty_annotation,
+                &mut None,
-                    &mut None,
+            )?;
-                )?;
-
-                unifier.unify(*dummy_ty, ty_from_ty_annotation).map_err(|e| {
-                    HashSet::from([e.at(Some(loc.unwrap())).to_display(unifier).to_string()])
-                })?;
-            }
 
+            unifier.unify(*dummy_ty, ty_from_ty_annotation).map_err(|e| {
+                HashSet::from([e.at(Some(loc.unwrap())).to_display(unifier).to_string()])
+            })?;
             Ok(())
         };
 

nac3core/src/toplevel/helper.rs

@@ -3,11 +3,13 @@ use std::convert::TryInto;
 use strum::IntoEnumIterator;
 use strum_macros::EnumIter;
 
-use nac3parser::ast::{Constant, ExprKind, Location};
+use ast::ExprKind;
+use nac3parser::ast::{Constant, Location};
 
-use super::{numpy::unpack_ndarray_var_tys, *};
+use super::*;
 use crate::{
     symbol_resolver::SymbolValue,
+    toplevel::numpy::unpack_ndarray_var_tys,
     typecheck::typedef::{into_var_map, iter_type_vars, Mapping, TypeVarId, VarMap},
 };
 
@@ -598,7 +600,7 @@ impl TopLevelComposer {
         name: String,
         simple_name: StrRef,
         ty: Type,
-        ty_decl: Option<Expr>,
+        ty_decl: Expr,
         resolver: Option<Arc<dyn SymbolResolver + Send + Sync>>,
         loc: Option<Location>,
     ) -> TopLevelDef {

nac3core/src/toplevel/mod.rs

@@ -23,19 +23,19 @@ use crate::{
         },
     },
 };
-use composer::*;
+
-use type_annotation::*;
+#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Hash, Debug)]
+pub struct DefinitionId(pub usize);
 
 pub mod builtins;
 pub mod composer;
 pub mod helper;
 pub mod numpy;
+pub mod type_annotation;
+use composer::*;
+use type_annotation::*;
 #[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(
         &mut CodeGenContext<'ctx, 'a>,
@@ -158,8 +158,8 @@ pub enum TopLevelDef {
         /// Type of the global variable.
         ty: Type,
 
-        /// The declared type of the global variable, or [`None`] if no type annotation is provided.
+        /// The declared type of the global variable.
-        ty_decl: Option<Expr>,
+        ty_decl: Expr,
 
         /// Symbol resolver of the module defined the class.
         resolver: Option<Arc<dyn SymbolResolver + Send + Sync>>,

nac3core/src/toplevel/numpy.rs

@@ -1,9 +1,11 @@
 use itertools::Itertools;
 
-use super::helper::PrimDef;
+use crate::{
-use crate::typecheck::{
+    toplevel::helper::PrimDef,
-    type_inferencer::PrimitiveStore,
+    typecheck::{
-    typedef::{Type, TypeEnum, TypeVarId, Unifier, VarMap},
+        type_inferencer::PrimitiveStore,
+        typedef::{Type, TypeEnum, TypeVarId, Unifier, VarMap},
+    },
 };
 
 /// Creates a `ndarray` [`Type`] with the given type arguments.

nac3core/src/toplevel/test.rs

@@ -9,10 +9,11 @@ use nac3parser::{
     parser::parse_program,
 };
 
-use super::{helper::PrimDef, DefinitionId, *};
+use super::*;
 use crate::{
     codegen::CodeGenContext,
     symbol_resolver::{SymbolResolver, ValueEnum},
+    toplevel::{helper::PrimDef, DefinitionId},
     typecheck::{
         type_inferencer::PrimitiveStore,
         typedef::{into_var_map, Type, Unifier},

nac3core/src/toplevel/type_annotation.rs

@@ -2,11 +2,12 @@ use strum::IntoEnumIterator;
 
 use nac3parser::ast::Constant;
 
-use super::{
+use super::*;
-    helper::{PrimDef, PrimDefDetails},
+use crate::{
-    *,
+    symbol_resolver::SymbolValue,
+    toplevel::helper::{PrimDef, PrimDefDetails},
+    typecheck::typedef::VarMap,
 };
-use crate::{symbol_resolver::SymbolValue, typecheck::typedef::VarMap};
 
 #[derive(Clone, Debug)]
 pub enum TypeAnnotation {

nac3core/src/typecheck/function_check.rs

@@ -36,7 +36,7 @@ impl<'a> Inferencer<'a> {
             ExprKind::Name { id, .. } => {
                 // If `id` refers to a declared symbol, reject this assignment if it is used in the
                 // context of an (implicit) global variable
-                if let Some(id_info) = defined_identifiers.get(id) {
+                if let Some(id_info) = self.defined_identifiers.get(id) {
                     if matches!(
                         id_info.source,
                         DeclarationSource::Global { is_explicit: Some(false) }

nac3core/src/typecheck/magic_methods.rs

@@ -5,16 +5,16 @@ use strum::IntoEnumIterator;
 
 use nac3parser::ast::{Cmpop, Operator, StrRef, Unaryop};
 
-use super::{
-    type_inferencer::*,
-    typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
-};
 use crate::{
     symbol_resolver::SymbolValue,
     toplevel::{
         helper::PrimDef,
         numpy::{make_ndarray_ty, unpack_ndarray_var_tys},
     },
+    typecheck::{
+        type_inferencer::*,
+        typedef::{FunSignature, FuncArg, Type, TypeEnum, Unifier, VarMap},
+    },
 };
 
 /// The variant of a binary operator.

nac3core/src/typecheck/type_error.rs

@@ -5,9 +5,10 @@ use itertools::Itertools;
 use nac3parser::ast::{Cmpop, Location, StrRef};
 
 use super::{
-    magic_methods::{Binop, HasOpInfo},
+    magic_methods::Binop,
-    typedef::{RecordKey, Type, TypeEnum, Unifier},
+    typedef::{RecordKey, Type, Unifier},
 };
+use crate::typecheck::{magic_methods::HasOpInfo, typedef::TypeEnum};
 
 #[derive(Debug, Clone)]
 pub enum TypeErrorKind {

nac3core/src/typecheck/typedef/mod.rs

@@ -14,14 +14,14 @@ use itertools::{repeat_n, Itertools};
 use nac3parser::ast::{Cmpop, Location, StrRef, Unaryop};
 
 use super::{
-    magic_methods::{Binop, HasOpInfo, OpInfo},
+    magic_methods::{Binop, HasOpInfo},
     type_error::{TypeError, TypeErrorKind},
-    type_inferencer::PrimitiveStore,
     unification_table::{UnificationKey, UnificationTable},
 };
 use crate::{
     symbol_resolver::SymbolValue,
     toplevel::{helper::PrimDef, DefinitionId, TopLevelContext, TopLevelDef},
+    typecheck::{magic_methods::OpInfo, type_inferencer::PrimitiveStore},
 };
 
 #[cfg(test)]

nac3standalone/demo/src/globals.py

@@ -7,7 +7,7 @@ def output_int64(x: int64):
     ...
 
 X: int32 = 0
-Y = int64(1)
+Y: int64 = int64(1)
 
 def f():
     global X, Y

nac3standalone/src/main.rs

@@ -45,9 +45,8 @@ use nac3core::{
     },
 };
 
-use basic_symbol_resolver::*;
-
 mod basic_symbol_resolver;
+use basic_symbol_resolver::*;
 
 /// Command-line argument parser definition.
 #[derive(Parser)]
@@ -175,49 +174,46 @@ fn handle_typevar_definition(
 fn handle_assignment_pattern(
     targets: &[Expr],
     value: &Expr,
-    resolver: Arc<dyn SymbolResolver + Send + Sync>,
+    resolver: &(dyn SymbolResolver + Send + Sync),
     internal_resolver: &ResolverInternal,
-    composer: &mut TopLevelComposer,
+    def_list: &[Arc<RwLock<TopLevelDef>>],
+    unifier: &mut Unifier,
+    primitives: &PrimitiveStore,
 ) -> Result<(), String> {
     if targets.len() == 1 {
-        let target = &targets[0];
+        match &targets[0].node {
-
-        match &target.node {
             ExprKind::Name { id, .. } => {
-                let def_list = composer.extract_def_list();
-                let unifier = &mut composer.unifier;
-                let primitives = &composer.primitives_ty;
-
                 if let Ok(var) =
-                    handle_typevar_definition(value, &*resolver, &def_list, unifier, primitives)
+                    handle_typevar_definition(value, resolver, def_list, unifier, primitives)
                 {
                     internal_resolver.add_id_type(*id, var);
                     Ok(())
-                } else if let Ok(val) = parse_parameter_default_value(value, &*resolver) {
+                } else if let Ok(val) = parse_parameter_default_value(value, resolver) {
                     internal_resolver.add_module_global(*id, val);
-                    let (name, def_id, _) = composer
-                        .register_top_level_var(
-                            *id,
-                            None,
-                            Some(resolver.clone()),
-                            "__main__",
-                            target.location,
-                        )
-                        .unwrap();
-                    internal_resolver.add_id_def(name, def_id);
                     Ok(())
                 } else {
                     Err(format!("fails to evaluate this expression `{:?}` as a constant or generic parameter at {}",
-                        target.node,
+                        targets[0].node,
-                        target.location,
+                        targets[0].location,
                     ))
                 }
             }
             ExprKind::List { elts, .. } | ExprKind::Tuple { elts, .. } => {
-                handle_assignment_pattern(elts, value, resolver, internal_resolver, composer)?;
+                handle_assignment_pattern(
+                    elts,
+                    value,
+                    resolver,
+                    internal_resolver,
+                    def_list,
+                    unifier,
+                    primitives,
+                )?;
                 Ok(())
             }
-            _ => Err(format!("assignment to {target:?} is not supported at {}", target.location)),
+            _ => Err(format!(
+                "assignment to {:?} is not supported at {}",
+                targets[0], targets[0].location
+            )),
         }
     } else {
         match &value.node {
@@ -227,9 +223,11 @@ fn handle_assignment_pattern(
                         handle_assignment_pattern(
                             std::slice::from_ref(tar),
                             val,
-                            resolver.clone(),
+                            resolver,
                             internal_resolver,
-                            composer,
+                            def_list,
+                            unifier,
+                            primitives,
                         )?;
                     }
                     Ok(())
@@ -250,9 +248,8 @@ fn handle_assignment_pattern(
 fn handle_global_var(
     target: &Expr,
     value: Option<&Expr>,
-    resolver: &Arc<dyn SymbolResolver + Send + Sync>,
+    resolver: &(dyn SymbolResolver + Send + Sync),
     internal_resolver: &ResolverInternal,
-    composer: &mut TopLevelComposer,
 ) -> Result<(), String> {
     let ExprKind::Name { id, .. } = target.node else {
         return Err(format!(
@@ -265,12 +262,8 @@ fn handle_global_var(
         return Err(format!("global variable `{id}` must be initialized in its definition"));
     };
 
-    if let Ok(val) = parse_parameter_default_value(value, &**resolver) {
+    if let Ok(val) = parse_parameter_default_value(value, resolver) {
         internal_resolver.add_module_global(id, val);
-        let (name, def_id, _) = composer
-            .register_top_level_var(id, None, Some(resolver.clone()), "__main__", target.location)
-            .unwrap();
-        internal_resolver.add_id_def(name, def_id);
         Ok(())
     } else {
         Err(format!(
@@ -362,12 +355,17 @@ fn main() {
     for stmt in parser_result {
         match &stmt.node {
             StmtKind::Assign { targets, value, .. } => {
+                let def_list = composer.extract_def_list();
+                let unifier = &mut composer.unifier;
+                let primitives = &composer.primitives_ty;
                 if let Err(err) = handle_assignment_pattern(
                     targets,
                     value,
-                    resolver.clone(),
+                    resolver.as_ref(),
                     internal_resolver.as_ref(),
-                    &mut composer,
+                    &def_list,
+                    unifier,
+                    primitives,
                 ) {
                     panic!("{err}");
                 }
@@ -377,12 +375,16 @@ fn main() {
                 if let Err(err) = handle_global_var(
                     target,
                     value.as_ref().map(Box::as_ref),
-                    &resolver,
+                    resolver.as_ref(),
                     internal_resolver.as_ref(),
-                    &mut composer,
                 ) {
                     panic!("{err}");
                 }
+
+                let (name, def_id, _) = composer
+                    .register_top_level(stmt, Some(resolver.clone()), "__main__", true)
+                    .unwrap();
+                internal_resolver.add_id_def(name, def_id);
             }
 
             // allow (and ignore) "from __future__ import annotations"