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Add intrinsics.type_convert_variants_to_pointers and reflect.get_union_as_ptr_variants

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gingerBill
2022-09-08 16:52:51 +01:00
parent 81e3b64ecd
commit f77709e67e
4 changed files with 55 additions and 0 deletions
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src/check_builtin.cpp
+40
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@@ -4613,6 +4613,46 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
operand->mode = Addressing_Type;
break;
case BuiltinProc_type_convert_variants_to_pointers:
if (operand->mode != Addressing_Type) {
error(operand->expr, "Expected a type for '%.*s'", LIT(builtin_name));
} else {
Type *bt = base_type(operand->type);
if (is_type_polymorphic(bt)) {
// IGNORE polymorphic types
return true;
} else if (bt->kind != Type_Union) {
gbString t = type_to_string(operand->type);
error(operand->expr, "Expected a union type for '%.*s', got %s", LIT(builtin_name), t);
gb_string_free(t);
operand->mode = Addressing_Invalid;
operand->type = t_invalid;
return false;
} else if (bt->Union.is_polymorphic) {
gbString t = type_to_string(operand->type);
error(operand->expr, "Expected a non-polymorphic union type for '%.*s', got %s", LIT(builtin_name), t);
gb_string_free(t);
operand->mode = Addressing_Invalid;
operand->type = t_invalid;
return false;
}
Type *new_type = alloc_type_union();
auto variants = slice_make<Type *>(permanent_allocator(), bt->Union.variants.count);
for_array(i, bt->Union.variants) {
variants[i] = alloc_type_pointer(bt->Union.variants[i]);
}
new_type->Union.variants = variants;
// NOTE(bill): Is this even correct?
new_type->Union.scope = bt->Union.scope;
operand->type = new_type;
}
operand->mode = Addressing_Type;
break;
case BuiltinProc_type_is_boolean:
case BuiltinProc_type_is_integer: