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Do not allow Drop impl on foreign fundamental types

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This commit is contained in:
Michael Goulet 2022-07-21 22:00:15 +00:00
parent 40336865fe
commit fd934c99bc
10 changed files with 51 additions and 18 deletions
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8
compiler/rustc_typeck/src/coherence/builtin.rs
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@ -47,9 +47,11 @@ impl<'tcx> Checker<'tcx> {
}
fn visit_implementation_of_drop(tcx: TyCtxt<'_>, impl_did: LocalDefId) {
// Destructors only work on nominal types.
if let ty::Adt(..) | ty::Error(_) = tcx.type_of(impl_did).kind() {
return;
// Destructors only work on local ADT types.
match tcx.type_of(impl_did).kind() {
ty::Adt(def, _) if def.did().is_local() => return,
ty::Error(_) => return,
_ => {}
}
let sp = match tcx.hir().expect_item(impl_did).kind {