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Rudimentary support for some constant struct #raw_union

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gingerBill
2025-09-29 10:28:16 +01:00
parent 1f2cedcf78
commit 10ba956d6a
3 changed files with 50 additions and 3 deletions
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18
src/types.cpp
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@@ -2531,6 +2531,20 @@ gb_internal bool is_type_union_constantable(Type *type) {
return true;
}
gb_internal bool is_type_raw_union_constantable(Type *type) {
Type *bt = base_type(type);
GB_ASSERT(bt->kind == Type_Struct);
GB_ASSERT(bt->Struct.is_raw_union);
for (Entity *f : bt->Struct.fields) {
if (!is_type_constant_type(f->type)) {
return false;
}
}
return true;
}
gb_internal bool elem_type_can_be_constant(Type *t) {
t = base_type(t);
if (t == t_invalid) {
@@ -2540,7 +2554,7 @@ gb_internal bool elem_type_can_be_constant(Type *t) {
return false;
}
if (is_type_raw_union(t)) {
return false;
return is_type_raw_union_constantable(t);
}
if (is_type_union(t)) {
return is_type_union_constantable(t);
@@ -2556,7 +2570,7 @@ gb_internal bool elem_cannot_be_constant(Type *t) {
return !is_type_union_constantable(t);
}
if (is_type_raw_union(t)) {
return true;
return !is_type_raw_union_constantable(t);
}
return false;
}