nac3core/src/codegen/expr.rs

@@ -165,6 +165,7 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
     ) -> BasicTypeEnum<'ctx> {
         get_llvm_type(
             self.ctx,
+            &self.module,
             generator,
             &mut self.unifier,
             self.top_level,
@@ -361,17 +362,31 @@ impl<'ctx, 'a> CodeGenContext<'ctx, 'a> {
                 }
             }
         }
-        let params = if loc_params.is_empty() {
-            params
-        } else {
-            &loc_params
-        };
+        let params = if loc_params.is_empty() { params } else { &loc_params };
+        let params = fun
+            .get_type()
+            .get_param_types()
+            .into_iter()
+            .zip(params.iter())
+            .map(|(ty, val)| match (ty, val.get_type()) {
+                (BasicTypeEnum::PointerType(arg_ty), BasicTypeEnum::PointerType(val_ty))
+                    if {
+                        ty != val.get_type()
+                            && arg_ty.get_element_type().is_struct_type()
+                            && val_ty.get_element_type().is_struct_type()
+                    } =>
+                {
+                    self.builder.build_bitcast(*val, arg_ty, "call_arg_cast")
+                }
+                _ => *val,
+            })
+            .collect_vec();
         let result = if let Some(target) = self.unwind_target {
             let current = self.builder.get_insert_block().unwrap().get_parent().unwrap();
             let then_block = self.ctx.append_basic_block(current, &format!("after.{}", call_name));
             let result = self
                 .builder
-                .build_invoke(fun, params, then_block, target, call_name)
+                .build_invoke(fun, &params, then_block, target, call_name)
                 .try_as_basic_value()
                 .left();
             self.builder.position_at_end(then_block);

nac3core/src/codegen/mod.rs

@@ -205,7 +205,7 @@ impl WorkerRegistry {
     fn worker_thread<G: CodeGenerator>(&self, generator: &mut G, f: Arc<WithCall>) {
         let context = Context::create();
         let mut builder = context.create_builder();
-        let module = context.create_module(generator.get_name());
+        let mut module = context.create_module(generator.get_name());
 
         module.add_basic_value_flag(
             "Debug Info Version",
@@ -225,16 +225,17 @@ impl WorkerRegistry {
 
         let mut errors = HashSet::new();
         while let Some(task) = self.receiver.recv().unwrap() {
-            let tmp_module = context.create_module("tmp");
-            match gen_func(&context, generator, self, builder, tmp_module, task) {
+            let prev_module = module.write_bitcode_to_memory();
+            match gen_func(&context, generator, self, builder, module, task) {
                 Ok(result) => {
                     builder = result.0;
                     passes.run_on(&result.2);
-                    module.link_in_module(result.1).unwrap();
+                    module = result.1;
                 }
                 Err((old_builder, e)) => {
                     builder = old_builder;
                     errors.insert(e);
+                    module = context.create_module_from_ir(prev_module).unwrap();
                 }
             }
             *self.task_count.lock() -= 1;
@@ -271,6 +272,7 @@ pub struct CodeGenTask {
 
 fn get_llvm_type<'ctx>(
     ctx: &'ctx Context,
+    module: &Module<'ctx>,
     generator: &mut dyn CodeGenerator,
     unifier: &mut Unifier,
     top_level: &TopLevelContext,
@@ -295,6 +297,7 @@ fn get_llvm_type<'ctx>(
                         ) if *obj_id == *opt_id => {
                             return get_llvm_type(
                                 ctx,
+                                module,
                                 generator,
                                 unifier,
                                 top_level,
@@ -311,16 +314,24 @@ fn get_llvm_type<'ctx>(
                 // a struct with fields in the order of declaration
                 let top_level_defs = top_level.definitions.read();
                 let definition = top_level_defs.get(obj_id.0).unwrap();
-                let ty = if let TopLevelDef::Class { name, fields: fields_list, .. } =
+                let ty = if let TopLevelDef::Class { fields: fields_list, .. } =
                     &*definition.read()
                 {
-                    let struct_type = ctx.opaque_struct_type(&name.to_string());
-                    type_cache.insert(unifier.get_representative(ty), struct_type.ptr_type(AddressSpace::Generic).into());
+                    let name = unifier.stringify(ty);
+                    match module.get_struct_type(&name) {
+                        Some(t) => t.ptr_type(AddressSpace::Generic).into(),
+                        None => {
+                            let struct_type = ctx.opaque_struct_type(&name);
+                            type_cache.insert(
+                                unifier.get_representative(ty),
+                                struct_type.ptr_type(AddressSpace::Generic).into()
+                            );
                             let fields = fields_list
                                 .iter()
                                 .map(|f| {
                                     get_llvm_type(
                                         ctx,
+                                        module,
                                         generator,
                                         unifier,
                                         top_level,
@@ -332,6 +343,8 @@ fn get_llvm_type<'ctx>(
                                 .collect_vec();
                             struct_type.set_body(&fields, false);
                             struct_type.ptr_type(AddressSpace::Generic).into()
+                        }
+                    }
                 } else {
                     unreachable!()
                 };
@@ -341,14 +354,19 @@ fn get_llvm_type<'ctx>(
                 // a struct with fields in the order present in the tuple
                 let fields = ty
                     .iter()
-                    .map(|ty| get_llvm_type(ctx, generator, unifier, top_level, type_cache, primitives, *ty))
+                    .map(|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, generator, unifier, top_level, type_cache, primitives, *ty);
+                let element_type = get_llvm_type(
+                    ctx, module, generator, unifier, top_level, type_cache, primitives, *ty,
+                );
                 let fields = [
                     element_type.ptr_type(AddressSpace::Generic).into(),
                     generator.get_size_type(ctx).into(),
@@ -434,6 +452,9 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         (primitives.float, context.f64_type().into()),
         (primitives.bool, context.bool_type().into()),
         (primitives.str, {
+            let name = "str";
+            match module.get_struct_type(name) {
+                None => {
                     let str_type = context.opaque_struct_type("str");
                     let fields = [
                         context.i8_type().ptr_type(AddressSpace::Generic).into(),
@@ -441,21 +462,30 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
                     ];
                     str_type.set_body(&fields, false);
                     str_type.into()
+                }
+                Some(t) => t.as_basic_type_enum()
+            }
         }),
         (primitives.range, context.i32_type().array_type(3).ptr_type(AddressSpace::Generic).into()),
+        (primitives.exception, {
+            let name = "Exception";
+            match module.get_struct_type(name) {
+                Some(t) => t.ptr_type(AddressSpace::Generic).as_basic_type_enum(),
+                None => {
+                    let exception = context.opaque_struct_type("Exception");
+                    let int32 = context.i32_type().into();
+                    let int64 = context.i64_type().into();
+                    let str_ty = module.get_struct_type("str").unwrap().as_basic_type_enum();
+                    let fields = [int32, str_ty, int32, int32, str_ty, str_ty, int64, int64, int64];
+                    exception.set_body(&fields, false);
+                    exception.ptr_type(AddressSpace::Generic).as_basic_type_enum()
+                }
+            }
+        })
     ]
     .iter()
     .cloned()
     .collect();
-    type_cache.insert(primitives.exception, {
-        let exception = context.opaque_struct_type("Exception");
-        let int32 = context.i32_type().into();
-        let int64 = context.i64_type().into();
-        let str_ty = *type_cache.get(&primitives.str).unwrap();
-        let fields = [int32, str_ty, int32, int32, str_ty, str_ty, int64, int64, int64];
-        exception.set_body(&fields, false);
-        exception.ptr_type(AddressSpace::Generic).into()
-    });
     // NOTE: special handling of option cannot use this type cache since it contains type var,
     // handled inside get_llvm_type instead
 
@@ -478,7 +508,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
     let ret_type = if unifier.unioned(ret, primitives.none) {
         None
     } else {
-        Some(get_llvm_type(context, generator, &mut unifier, top_level_ctx.as_ref(), &mut type_cache, &primitives, ret))
+        Some(get_llvm_type(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(context, ty));
@@ -487,6 +517,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         .map(|arg| {
             get_llvm_type(
                 context,
+                &module,
                 generator,
                 &mut unifier,
                 top_level_ctx.as_ref(),
@@ -535,6 +566,7 @@ pub fn gen_func_impl<'ctx, G: CodeGenerator, F: FnOnce(&mut G, &mut CodeGenConte
         let alloca = builder.build_alloca(
             get_llvm_type(
                 context,
+                &module,
                 generator,
                 &mut unifier,
                 top_level_ctx.as_ref(),

nac3standalone/demo/src/inheritance.py

@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+@extern
+def output_int32(x: int32):
+    ...
+
+class A:
+    a: int32
+
+    def __init__(self, a: int32):
+        self.a = a
+    
+    def f1(self):
+        self.f2()
+    
+    def f2(self):
+        output_int32(self.a)
+
+class B(A):
+    b: int32
+
+    def __init__(self, b: int32):
+        self.a = b + 1
+        self.b = b
+
+
+def run() -> int32:
+    aaa = A(5)
+    bbb = B(2)
+    aaa.f1()
+    bbb.f1()
+    return 0

nac3standalone/demo/src/recursive_type.py

@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+@extern
+def output_int32(a: int32):
+    ...
+
+class A:
+    d: int32
+    a: list[B]
+    def __init__(self, b: list[B]):
+        self.d = 123
+        self.a = b
+    
+    def f(self):
+        output_int32(self.d)
+
+class B:
+    a: A
+    def __init__(self, a: A):
+        self.a = a
+
+    def ff(self):
+        self.a.f()
+
+class Demo:
+    a: A
+    def __init__(self, a: A):
+        self.a = a
+
+def run() -> int32:
+    aa = A([])
+    bb = B(aa)
+    aa.a = [bb]
+    d = Demo(aa)
+    d.a.a[0].ff()
+    return 0

nac3standalone/demo/src/typevar.py

@@ -34,5 +34,9 @@ def run() -> int32:
     insta = A()
     inst = C(insta)
     inst.foo()
+    
+    insta2 = B()
+    inst2 = C(insta2)
+    inst2.foo()
     return 0