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Fix polymorphic element types usage; Empty union as opaque type

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This commit is contained in:
Ginger Bill
2017-07-20 19:40:51 +01:00
parent 13bc6eeea4
commit 9a3b4167bb
14 changed files with 228 additions and 170 deletions
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23
src/check_decl.cpp
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@@ -65,6 +65,12 @@ Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String contex
error(e->token, "Invalid use of a polymorphic type `%s` in %.*s", str, LIT(context_name));
e->type = t_invalid;
return nullptr;
} else if (is_type_empty_union(t)) {
gbString str = type_to_string(t);
defer (gb_string_free(str));
error(e->token, "An empty union `%s` cannot be instantiated in %.*s", str, LIT(context_name));
e->type = t_invalid;
return nullptr;
}
if (is_type_bit_field_value(t)) {
t = default_bit_field_value_type(t);
@@ -558,11 +564,18 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
if (type_expr != nullptr) {
e->type = check_type(c, type_expr);
}
if (e->type != nullptr && is_type_polymorphic(base_type(e->type))) {
gbString str = type_to_string(e->type);
defer (gb_string_free(str));
error(e->token, "Invalid use of a polymorphic type `%s` in %.*s", str, LIT(context_name));
e->type = t_invalid;
if (e->type != nullptr) {
if (is_type_polymorphic(base_type(e->type))) {
gbString str = type_to_string(e->type);
defer (gb_string_free(str));
error(e->token, "Invalid use of a polymorphic type `%s` in %.*s", str, LIT(context_name));
e->type = t_invalid;
} else if (is_type_empty_union(e->type)) {
gbString str = type_to_string(e->type);
defer (gb_string_free(str));
error(e->token, "An empty union `%s` cannot be instantiated in %.*s", str, LIT(context_name));
e->type = t_invalid;
}
}