core/toplevel/type_annotation: Add handling for mismatching class def

Primitive types only contain fields in its Type and not its TopLevelDef.
This causes primitive object types to lack some fields.

Cargo.lock

@@ -117,9 +117,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "cc"
-version = "1.1.0"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eaff6f8ce506b9773fa786672d63fc7a191ffea1be33f72bbd4aeacefca9ffc8"
+checksum = "324c74f2155653c90b04f25b2a47a8a631360cb908f92a772695f430c7e31052"
 
 [[package]]
 name = "cfg-if"
@@ -158,7 +158,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -421,7 +421,7 @@ checksum = "4fa4d8d74483041a882adaa9a29f633253a66dde85055f0495c121620ac484b2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -749,7 +749,7 @@ dependencies = [
  "phf_shared 0.11.2",
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -850,7 +850,7 @@ dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -863,7 +863,7 @@ dependencies = [
  "proc-macro2",
  "pyo3-build-config",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -927,9 +927,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c82cf8cff14456045f55ec4241383baeff27af886adb72ffb2162f99911de0fd"
+checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
 dependencies = [
  "bitflags",
 ]
@@ -1044,7 +1044,7 @@ checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -1134,7 +1134,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustversion",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -1150,9 +1150,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.70"
+version = "2.0.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f0209b68b3613b093e0ec905354eccaedcfe83b8cb37cbdeae64026c3064c16"
+checksum = "b146dcf730474b4bcd16c311627b31ede9ab149045db4d6088b3becaea046462"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1203,22 +1203,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.61"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]
 
 [[package]]
@@ -1486,5 +1486,5 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.70",
+ "syn 2.0.71",
 ]

nac3artiq/Cargo.toml

@@ -24,3 +24,4 @@ features = ["llvm14-0", "target-x86", "target-arm", "target-riscv", "no-libffi-l
 
 [features]
 init-llvm-profile = []
+no-escape-analysis = ["nac3core/no-escape-analysis"]

nac3artiq/demo/list_cmp.py

@@ -0,0 +1,24 @@
+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/src/symbol_resolver.rs

@@ -991,8 +991,15 @@ impl InnerResolver {
                 }
                 _ => unreachable!("must be list"),
             };
-            let ty = ctx.get_llvm_type(generator, elem_ty);
             let size_t = generator.get_size_type(ctx.ctx);
+            let ty = if len == 0
+                && matches!(&*ctx.unifier.get_ty_immutable(elem_ty), TypeEnum::TVar { .. })
+            {
+                // The default type for zero-length lists of unknown element type is size_t
+                size_t.into()
+            } else {
+                ctx.get_llvm_type(generator, elem_ty)
+            };
             let arr_ty = ctx
                 .ctx
                 .struct_type(&[ty.ptr_type(AddressSpace::default()).into(), size_t.into()], false);
@@ -1073,6 +1080,8 @@ impl InnerResolver {
                 unpack_ndarray_var_tys(&mut ctx.unifier, ndarray_ty);
 
             let llvm_usize = generator.get_size_type(ctx.ctx);
+            // TODO: Special handling required for strings, since there are two representations:
+            //  struct %str and [n x i8].
             let ndarray_dtype_llvm_ty = ctx.get_llvm_type(generator, ndarray_dtype);
             let ndarray_llvm_ty = NDArrayType::new(generator, ctx.ctx, ndarray_dtype_llvm_ty);
 
@@ -1140,30 +1149,43 @@ impl InnerResolver {
                     })
                 })
                 .collect();
-            let data = data?.unwrap().into_iter();
+            let data = data?.unwrap();
-            let data = match ndarray_dtype_llvm_ty {
-                BasicTypeEnum::ArrayType(ty) => {
-                    ty.const_array(&data.map(BasicValueEnum::into_array_value).collect_vec())
-                }
 
-                BasicTypeEnum::FloatType(ty) => {
+            let make_llvm_array =
-                    ty.const_array(&data.map(BasicValueEnum::into_float_value).collect_vec())
+                |llvm_ty: BasicTypeEnum<'ctx>, elems: Vec<BasicValueEnum<'ctx>>| {
-                }
+                    debug_assert!(elems.iter().all(|elem| elem.get_type() == llvm_ty));
 
-                BasicTypeEnum::IntType(ty) => {
+                    match llvm_ty {
-                    ty.const_array(&data.map(BasicValueEnum::into_int_value).collect_vec())
+                        BasicTypeEnum::ArrayType(ty) => ty.const_array(
-                }
+                            &elems.into_iter().map(BasicValueEnum::into_array_value).collect_vec(),
+                        ),
 
-                BasicTypeEnum::PointerType(ty) => {
+                        BasicTypeEnum::FloatType(ty) => ty.const_array(
-                    ty.const_array(&data.map(BasicValueEnum::into_pointer_value).collect_vec())
+                            &elems.into_iter().map(BasicValueEnum::into_float_value).collect_vec(),
-                }
+                        ),
 
-                BasicTypeEnum::StructType(ty) => {
+                        BasicTypeEnum::IntType(ty) => ty.const_array(
-                    ty.const_array(&data.map(BasicValueEnum::into_struct_value).collect_vec())
+                            &elems.into_iter().map(BasicValueEnum::into_int_value).collect_vec(),
-                }
+                        ),
 
-                BasicTypeEnum::VectorType(_) => unreachable!(),
+                        BasicTypeEnum::PointerType(ty) => ty.const_array(
-            };
+                            &elems
+                                .into_iter()
+                                .map(BasicValueEnum::into_pointer_value)
+                                .collect_vec(),
+                        ),
+
+                        BasicTypeEnum::StructType(ty) => ty.const_array(
+                            &elems.into_iter().map(BasicValueEnum::into_struct_value).collect_vec(),
+                        ),
+
+                        BasicTypeEnum::VectorType(_) => unreachable!(),
+                    }
+                };
+
+            let ndarray_dtype_llvm_ty =
+                if data.is_empty() { ndarray_dtype_llvm_ty } else { data[0].get_type() };
+            let data = make_llvm_array(ndarray_dtype_llvm_ty, data);
 
             // create a global for ndarray.data and initialize it using the elements
             let data_global = ctx.module.add_global(

nac3core/Cargo.toml

@@ -4,6 +4,9 @@ version = "0.1.0"
 authors = ["M-Labs"]
 edition = "2021"
 
+[features]
+no-escape-analysis = []
+
 [dependencies]
 itertools = "0.13"
 crossbeam = "0.8"

nac3core/src/codegen/expr.rs

@@ -951,9 +951,9 @@ pub fn destructure_range<'ctx>(
 /// Allocates a List structure with the given [type][ty] and [length]. The name of the resulting
 /// LLVM value is `{name}.addr`, or `list.addr` if [name] is not specified.
 ///
-/// Setting `ty` to [`None`] implies that the list does not have a known element type, which is only
+/// Setting `ty` to [`None`] implies that the list is empty **and** does not have a known element
-/// valid for empty lists. It is undefined behavior to generate a sized list with an unknown element
+/// type, and will therefore set the `list.data` type as `size_t*`. It is undefined behavior to
-/// type.
+/// generate a sized list with an unknown element type.
 pub fn allocate_list<'ctx, G: CodeGenerator + ?Sized>(
     generator: &mut G,
     ctx: &mut CodeGenContext<'ctx, '_>,

nac3core/src/codegen/stmt.rs

@@ -1637,7 +1637,7 @@ pub fn gen_stmt<G: CodeGenerator>(
             };
             ctx.make_assert_impl(
                 generator,
-                test.into_int_value(),
+                generator.bool_to_i1(ctx, test.into_int_value()),
                 "0:AssertionError",
                 err_msg,
                 [None, None, None],

nac3core/src/toplevel/builtins.rs

@@ -564,7 +564,7 @@ impl<'a> BuiltinBuilder<'a> {
             match (&tld, prim.details()) {
                 (
                     TopLevelDef::Class { name, object_id, .. },
-                    PrimDefDetails::PrimClass { name: exp_name },
+                    PrimDefDetails::PrimClass { name: exp_name, .. },
                 ) => {
                     let exp_object_id = prim.id();
                     assert_eq!(name, &exp_name.into());

nac3core/src/toplevel/composer.rs

@@ -766,6 +766,7 @@ impl TopLevelComposer {
             let target_ty = get_type_from_type_annotation_kinds(
                 &temp_def_list,
                 unifier,
+                primitives,
                 &def,
                 &mut subst_list,
             )?;
@@ -936,6 +937,7 @@ impl TopLevelComposer {
                         let ty = get_type_from_type_annotation_kinds(
                             temp_def_list.as_ref(),
                             unifier,
+                            primitives_store,
                             &type_annotation,
                             &mut None,
                         )?;
@@ -1002,6 +1004,7 @@ impl TopLevelComposer {
                     get_type_from_type_annotation_kinds(
                         &temp_def_list,
                         unifier,
+                        primitives_store,
                         &return_ty_annotation,
                         &mut None,
                     )?
@@ -1622,6 +1625,7 @@ impl TopLevelComposer {
                 let self_type = get_type_from_type_annotation_kinds(
                     &def_list,
                     unifier,
+                    primitives_ty,
                     &make_self_type_annotation(type_vars, *object_id),
                     &mut None,
                 )?;
@@ -1803,7 +1807,11 @@ impl TopLevelComposer {
 
                         let ty_ann = make_self_type_annotation(type_vars, *class_id);
                         let self_ty = get_type_from_type_annotation_kinds(
-                            &def_list, unifier, &ty_ann, &mut None,
+                            &def_list,
+                            unifier,
+                            primitives_ty,
+                            &ty_ann,
+                            &mut None,
                         )?;
                         vars.extend(type_vars.iter().map(|ty| {
                             let TypeEnum::TVar { id, .. } = &*unifier.get_ty(*ty) else {

nac3core/src/toplevel/helper.rs

@@ -113,7 +113,7 @@ pub enum PrimDef {
 /// Associated details of a [`PrimDef`]
 pub enum PrimDefDetails {
     PrimFunction { name: &'static str, simple_name: &'static str },
-    PrimClass { name: &'static str },
+    PrimClass { name: &'static str, get_ty_fn: fn(&PrimitiveStore) -> Type },
 }
 
 impl PrimDef {
@@ -155,15 +155,17 @@ impl PrimDef {
     #[must_use]
     pub fn name(&self) -> &'static str {
         match self.details() {
-            PrimDefDetails::PrimFunction { name, .. } | PrimDefDetails::PrimClass { name } => name,
+            PrimDefDetails::PrimFunction { name, .. } | PrimDefDetails::PrimClass { name, .. } => {
+                name
+            }
         }
     }
 
     /// Get the associated details of this [`PrimDef`]
     #[must_use]
     pub fn details(self) -> PrimDefDetails {
-        fn class(name: &'static str) -> PrimDefDetails {
+        fn class(name: &'static str, get_ty_fn: fn(&PrimitiveStore) -> Type) -> PrimDefDetails {
-            PrimDefDetails::PrimClass { name }
+            PrimDefDetails::PrimClass { name, get_ty_fn }
         }
 
         fn fun(name: &'static str, simple_name: Option<&'static str>) -> PrimDefDetails {
@@ -171,22 +173,22 @@ impl PrimDef {
         }
 
         match self {
-            PrimDef::Int32 => class("int32"),
+            PrimDef::Int32 => class("int32", |primitives| primitives.int32),
-            PrimDef::Int64 => class("int64"),
+            PrimDef::Int64 => class("int64", |primitives| primitives.int64),
-            PrimDef::Float => class("float"),
+            PrimDef::Float => class("float", |primitives| primitives.float),
-            PrimDef::Bool => class("bool"),
+            PrimDef::Bool => class("bool", |primitives| primitives.bool),
-            PrimDef::None => class("none"),
+            PrimDef::None => class("none", |primitives| primitives.none),
-            PrimDef::Range => class("range"),
+            PrimDef::Range => class("range", |primitives| primitives.range),
-            PrimDef::Str => class("str"),
+            PrimDef::Str => class("str", |primitives| primitives.str),
-            PrimDef::Exception => class("Exception"),
+            PrimDef::Exception => class("Exception", |primitives| primitives.exception),
-            PrimDef::UInt32 => class("uint32"),
+            PrimDef::UInt32 => class("uint32", |primitives| primitives.uint32),
-            PrimDef::UInt64 => class("uint64"),
+            PrimDef::UInt64 => class("uint64", |primitives| primitives.uint64),
-            PrimDef::Option => class("Option"),
+            PrimDef::Option => class("Option", |primitives| primitives.option),
             PrimDef::OptionIsSome => fun("Option.is_some", Some("is_some")),
             PrimDef::OptionIsNone => fun("Option.is_none", Some("is_none")),
             PrimDef::OptionUnwrap => fun("Option.unwrap", Some("unwrap")),
-            PrimDef::List => class("list"),
+            PrimDef::List => class("list", |primitives| primitives.list),
-            PrimDef::NDArray => class("ndarray"),
+            PrimDef::NDArray => class("ndarray", |primitives| primitives.ndarray),
             PrimDef::NDArrayCopy => fun("ndarray.copy", Some("copy")),
             PrimDef::NDArrayFill => fun("ndarray.fill", Some("fill")),
             PrimDef::FunInt32 => fun("int32", None),

nac3core/src/toplevel/type_annotation.rs

@@ -1,8 +1,9 @@
 use super::*;
 use crate::symbol_resolver::SymbolValue;
-use crate::toplevel::helper::PrimDef;
+use crate::toplevel::helper::{PrimDef, PrimDefDetails};
 use crate::typecheck::typedef::VarMap;
 use nac3parser::ast::Constant;
+use strum::IntoEnumIterator;
 
 #[derive(Clone, Debug)]
 pub enum TypeAnnotation {
@@ -357,6 +358,7 @@ 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>>,
 ) -> Result<Type, HashSet<String>> {
@@ -379,100 +381,141 @@ pub fn get_type_from_type_annotation_kinds(
             let param_ty = params
                 .iter()
                 .map(|x| {
-                    get_type_from_type_annotation_kinds(top_level_defs, unifier, x, subst_list)
+                    get_type_from_type_annotation_kinds(
+                        top_level_defs,
+                        unifier,
+                        primitives,
+                        x,
+                        subst_list,
+                    )
                 })
                 .collect::<Result<Vec<_>, _>>()?;
 
-            let subst = {
+            let ty = if let Some(prim_def) = PrimDef::iter().find(|prim| prim.id() == *obj_id) {
-                // check for compatible range
+                // Primitive TopLevelDefs do not contain all fields that are present in their Type
-                // TODO: if allow type var to be applied(now this disallowed in the parse_to_type_annotation), need more check
+                // counterparts, so directly perform subst on the Type instead.
-                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,
-                                        &mut |id| format!("class{id}"),
-                                        &mut |id| format!("typevar{id}"),
-                                        &mut None
-                                    ),
-                                    *id
-                                )]));
-                            }
-                        }
 
-                        TypeEnum::TVar { id, range, name, loc, is_const_generic: true, .. } => {
+                let PrimDefDetails::PrimClass { get_ty_fn, .. } = prim_def.details() else {
-                            let ty = range[0];
+                    unreachable!()
-                            let ok: bool = {
+                };
-                                // create a temp type var and unify to check compatibility
-                                p == *tvar || {
-                                    let temp = unifier.get_fresh_const_generic_var(ty, *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 {}",
-                                    unifier.stringify(p),
-                                    name.unwrap_or_else(|| format!("typevar{id}").into()),
-                                )]));
-                            }
-                        }
 
-                        _ => unreachable!("must be generic type var"),
+                let base_ty = get_ty_fn(primitives);
+                let params =
+                    if let TypeEnum::TObj { params, .. } = &*unifier.get_ty_immutable(base_ty) {
+                        params.clone()
+                    } else {
+                        unreachable!()
+                    };
+
+                unifier
+                    .subst(
+                        get_ty_fn(primitives),
+                        &params
+                            .iter()
+                            .zip(param_ty)
+                            .map(|(obj_tv, param)| (*obj_tv.0, param))
+                            .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,
+                                            &mut |id| format!("class{id}"),
+                                            &mut |id| format!("typevar{id}"),
+                                            &mut None
+                                        ),
+                                        *id
+                                    )]));
+                                }
+                            }
+
+                            TypeEnum::TVar {
+                                id, range, name, loc, is_const_generic: true, ..
+                            } => {
+                                let ty = range[0];
+                                let ok: bool = {
+                                    // create a temp type var and unify to check compatibility
+                                    p == *tvar || {
+                                        let temp =
+                                            unifier.get_fresh_const_generic_var(ty, *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 {}",
+                                        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 {
+                    if let Some(wl) = subst_list.as_mut() {
+                        wl.push(ty);
                     }
                 }
-                result
+
+                ty
             };
-            // 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 {
-                if let Some(wl) = subst_list.as_mut() {
-                    wl.push(ty);
-                }
-            }
             Ok(ty)
         }
         TypeAnnotation::Primitive(ty) | TypeAnnotation::TypeVar(ty) => Ok(*ty),
@@ -490,6 +533,7 @@ pub fn get_type_from_type_annotation_kinds(
             let ty = get_type_from_type_annotation_kinds(
                 top_level_defs,
                 unifier,
+                primitives,
                 ty.as_ref(),
                 subst_list,
             )?;
@@ -499,7 +543,13 @@ pub fn get_type_from_type_annotation_kinds(
             let tys = tys
                 .iter()
                 .map(|x| {
-                    get_type_from_type_annotation_kinds(top_level_defs, unifier, x, subst_list)
+                    get_type_from_type_annotation_kinds(
+                        top_level_defs,
+                        unifier,
+                        primitives,
+                        x,
+                        subst_list,
+                    )
                 })
                 .collect::<Result<Vec<_>, _>>()?;
             Ok(unifier.add_ty(TypeEnum::TTuple { ty: tys }))

nac3core/src/typecheck/function_check.rs

@@ -207,19 +207,23 @@ impl<'a> Inferencer<'a> {
     /// 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 {
-        match &*self.unifier.get_ty_immutable(ret_ty) {
+        if cfg!(feature = "no-escape-analysis") {
-            TypeEnum::TObj { .. } => [
+            true
-                self.primitives.int32,
+        } else {
-                self.primitives.int64,
+            match &*self.unifier.get_ty_immutable(ret_ty) {
-                self.primitives.uint32,
+                TypeEnum::TObj { .. } => [
-                self.primitives.uint64,
+                    self.primitives.int32,
-                self.primitives.float,
+                    self.primitives.int64,
-                self.primitives.bool,
+                    self.primitives.uint32,
-            ]
+                    self.primitives.uint64,
-            .iter()
+                    self.primitives.float,
-            .any(|allowed_ty| self.unifier.unioned(ret_ty, *allowed_ty)),
+                    self.primitives.bool,
-            TypeEnum::TTuple { ty } => ty.iter().all(|t| self.check_return_value_ty(*t)),
+                ]
-            _ => false,
+                .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,
+            }
         }
     }
 

nac3standalone/Cargo.toml

@@ -4,6 +4,9 @@ version = "0.1.0"
 authors = ["M-Labs"]
 edition = "2021"
 
+[features]
+no-escape-analysis = ["nac3core/no-escape-analysis"]
+
 [dependencies]
 parking_lot = "0.12"
 nac3parser = { path = "../nac3parser" }

nac3standalone/src/main.rs

@@ -113,7 +113,9 @@ fn handle_typevar_definition(
                         x,
                         HashMap::new(),
                     )?;
-                    get_type_from_type_annotation_kinds(def_list, unifier, &ty, &mut None)
+                    get_type_from_type_annotation_kinds(
+                        def_list, unifier, primitives, &ty, &mut None,
+                    )
                 })
                 .collect::<Result<Vec<_>, _>>()?;
             let loc = func.location;
@@ -152,7 +154,7 @@ fn handle_typevar_definition(
                 HashMap::new(),
             )?;
             let constraint =
-                get_type_from_type_annotation_kinds(def_list, unifier, &ty, &mut None)?;
+                get_type_from_type_annotation_kinds(def_list, unifier, primitives, &ty, &mut None)?;
             let loc = func.location;
 
             Ok(unifier.get_fresh_const_generic_var(constraint, Some(generic_name), Some(loc)).ty)