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- Bitstruct as substruct fails to properly work with designated initializers. #2827

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This commit is contained in:
Christoffer Lerno
2026-01-25 12:48:36 +01:00
parent cf9784afee
commit c65c378b7f
4 changed files with 20 additions and 11 deletions
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10
src/compiler/sema_initializers.c
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@@ -519,13 +519,11 @@ static bool sema_expr_analyse_designated_initializer(SemaContext *context, Type
}
}
Type *original = flattened->canonical;
bool is_bitstruct = original->type_kind == TYPE_BITSTRUCT;
bool is_structlike = type_is_union_or_strukt(original) || is_bitstruct;
bool is_structlike = type_is_union_or_strukt(original) || original->type_kind == TYPE_BITSTRUCT;
ArrayIndex max_index = -1;
bool optional = false;
Type *inner_type = NULL;
bool is_inferred = type_is_inferred(flattened);
int bitmember_count_without_value = 0;
FOREACH(Expr *, expr, init_expressions)
{
Decl *member;
@@ -535,10 +533,8 @@ static bool sema_expr_analyse_designated_initializer(SemaContext *context, Type
Expr *value = expr->designator_expr.value;
if (!value && is_bitmember && member->var.start_bit == member->var.end_bit && type_flatten(result) == type_bool)
{
ASSERT(is_bitstruct);
value = expr_new_const_bool(INVALID_SPAN, type_bool, true);
expr->designator_expr.value = value;
bitmember_count_without_value += 1;
}
if (!value) RETURN_SEMA_ERROR(expr, "This initializer needs a value.");
if (!sema_analyse_expr_rhs(context, result, value, true, no_match_ref, false)) return false;
@@ -553,10 +549,6 @@ static bool sema_expr_analyse_designated_initializer(SemaContext *context, Type
inner_type = type_no_optional(value->type);
}
}
if (bitmember_count_without_value != 0 && bitmember_count_without_value != vec_size(init_expressions))
{
RETURN_SEMA_ERROR(initializer, "Mixing the omission of initializers is not permitted.");
}
Type *type;
if (!is_structlike && is_inferred)
{