Improve error message for using offset_of within a struct itself of that struct

This commit is contained in:
gingerBill
2022-09-17 10:36:49 +01:00
parent 117d32dfc4
commit 1bc0e66ed1

View File

@@ -1899,6 +1899,21 @@ bool check_builtin_procedure(CheckerContext *c, Operand *operand, Ast *call, i32
gb_string_free(t);
return false;
}
Type *bt = base_type(type);
if (bt->kind == Type_Struct && bt->Struct.scope != nullptr) {
if (is_type_polymorphic(bt)) {
gbString t = type_to_string(type);
error(field_arg, "Cannot use '%.*s' on an unspecialized polymorphic struct type, got '%s'", LIT(builtin_name), t);
gb_string_free(t);
return false;
} else if (bt->Struct.fields.count == 0 && bt->Struct.node == nullptr) {
gbString t = type_to_string(type);
error(field_arg, "Cannot use '%.*s' on incomplete struct declaration, got '%s'", LIT(builtin_name), t);
gb_string_free(t);
return false;
}
}
Selection sel = lookup_field(type, field_name, false);
if (sel.entity == nullptr) {