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Fix type_union_tag_offset when all members are zero sized

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Jeroen van Rijn
2025-05-05 18:09:54 +02:00
parent c4719e75fd
commit 2224911aca
2 changed files with 6 additions and 5 deletions
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4
src/types.cpp
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@@ -4108,10 +4108,10 @@ gb_internal i64 type_size_of_internal(Type *t, TypePath *path) {
}
i64 max = 0;
i64 field_size = 0;
for_array(i, t->Union.variants) {
Type *variant_type = t->Union.variants[i];
i64 size = type_size_of_internal(variant_type, path);
if (max < size) {
max = size;
@@ -4130,7 +4130,7 @@ gb_internal i64 type_size_of_internal(Type *t, TypePath *path) {
size = align_formula(max, tag_size);
// NOTE(bill): Calculate the padding between the common fields and the tag
t->Union.tag_size = cast(i16)tag_size;
t->Union.variant_block_size = size - field_size;
t->Union.variant_block_size = size;
size += tag_size;
}