bjoernager/rust
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fix box with custom allocator in miri

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This commit is contained in:
DrMeepster 2022-06-26 13:58:37 -07:00
parent 8aab472d52
commit 6e32a16520
2 changed files with 4 additions and 17 deletions
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16
compiler/rustc_const_eval/src/interpret/cast.rs
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@ -366,22 +366,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
}
(&ty::Adt(def_a, _), &ty::Adt(def_b, _)) => {
assert_eq!(def_a, def_b);
if def_a.is_box() || def_b.is_box() {
if !def_a.is_box() || !def_b.is_box() {
span_bug!(
self.cur_span(),
"invalid unsizing between {:?} -> {:?}",
src.layout.ty,
cast_ty.ty
);
}
return self.unsize_into_ptr(
src,
dest,
src.layout.ty.boxed_ty(),
cast_ty.ty.boxed_ty(),
);
}
// unsizing of generic struct with pointer fields
// Example: `Arc<T>` -> `Arc<Trait>`