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Merge branch 'master' into bill/rexcode

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gingerBill
2026-06-19 09:10:30 +01:00
parent f3e2262705 417aa0ea9e
commit d2813b978d
6 changed files with 27 additions and 10 deletions
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12
src/types.cpp
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@@ -5043,9 +5043,15 @@ gb_internal isize check_is_assignable_to_using_subtype(Type *src, Type *dst, isi
return level+1;
}
}
isize nested_level = check_is_assignable_to_using_subtype(f->type, dst, level+1, src_is_ptr, allow_polymorphic);
if (nested_level > 0) {
return nested_level;
// Only follow the chain transitively when the field also has `using`, which is
// what the backend's lookup_subtype_polymorphic_selection requires (it gates
// recursion on EntityFlag_Using). A plain `#subtype`-only field enables a
// single-hop conversion but not a two-or-more hop transitive one.
if (f->flags & EntityFlag_Using) {
isize nested_level = check_is_assignable_to_using_subtype(f->type, dst, level+1, src_is_ptr, allow_polymorphic);
if (nested_level > 0) {
return nested_level;
}
}
}