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Merge pull request #5378 from laytan/fix-wasm-c-abi-raw-unions

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Fix WASM C ABI for raw unions
This commit is contained in:
gingerBill
2025-06-21 11:01:52 +01:00
committed by GitHub
parent edb1f8a76d 3db8972c99
commit 8d37f9de09
3 changed files with 135 additions and 16 deletions
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77
src/types.cpp
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@@ -4618,6 +4618,83 @@ gb_internal Type *alloc_type_proc_from_types(Type **param_types, unsigned param_
// return type;
// }
// Index a type that is internally a struct or array.
gb_internal Type *type_internal_index(Type *t, isize index) {
Type *bt = base_type(t);
if (bt == nullptr) {
return nullptr;
}
switch (bt->kind) {
case Type_Basic:
{
switch (bt->Basic.kind) {
case Basic_complex32: return t_f16;
case Basic_complex64: return t_f32;
case Basic_complex128: return t_f64;
case Basic_quaternion64: return t_f16;
case Basic_quaternion128: return t_f32;
case Basic_quaternion256: return t_f64;
case Basic_string:
{
GB_ASSERT(index == 0 || index == 1);
return index == 0 ? t_u8_ptr : t_int;
}
case Basic_any:
{
GB_ASSERT(index == 0 || index == 1);
return index == 0 ? t_rawptr : t_typeid;
}
}
}
break;
case Type_Array: return bt->Array.elem;
case Type_EnumeratedArray: return bt->EnumeratedArray.elem;
case Type_SimdVector: return bt->SimdVector.elem;
case Type_Slice:
{
GB_ASSERT(index == 0 || index == 1);
return index == 0 ? t_rawptr : t_typeid;
}
case Type_DynamicArray:
{
switch (index) {
case 0: return t_rawptr;
case 1: return t_int;
case 2: return t_int;
case 3: return t_allocator;
default: GB_PANIC("invalid raw dynamic array index");
};
}
case Type_Struct:
return get_struct_field_type(bt, index);
case Type_Union:
if (index < bt->Union.variants.count) {
return bt->Union.variants[index];
}
return union_tag_type(bt);
case Type_Tuple:
return bt->Tuple.variables[index]->type;
case Type_Matrix:
return bt->Matrix.elem;
case Type_SoaPointer:
{
GB_ASSERT(index == 0 || index == 1);
return index == 0 ? t_rawptr : t_int;
}
case Type_Map:
return type_internal_index(bt->Map.debug_metadata_type, index);
case Type_BitField:
return type_internal_index(bt->BitField.backing_type, index);
case Type_Generic:
return type_internal_index(bt->Generic.specialized, index);
};
GB_PANIC("Unhandled type %s", type_to_string(bt));
return nullptr;
};
gb_internal gbString write_type_to_string(gbString str, Type *type, bool shorthand=false, bool allow_polymorphic=false) {
if (type == nullptr) {
return gb_string_appendc(str, "<no type>");