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Make thir_check_unsafety itself responsible for checking gate

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This commit is contained in:
LeSeulArtichaut 2021-05-24 15:09:33 +02:00
parent 13e7b237fd
commit af3d9a3aa3
3 changed files with 14 additions and 12 deletions
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16
compiler/rustc_mir_build/src/build/mod.rs
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@ -46,15 +46,13 @@ fn mir_build(tcx: TyCtxt<'_>, def: ty::WithOptConstParam<LocalDefId>) -> Body<'_
let body_owner_kind = tcx.hir().body_owner_kind(id);
let typeck_results = tcx.typeck_opt_const_arg(def);
if tcx.sess.opts.debugging_opts.thir_unsafeck {
// Ensure unsafeck is ran before we steal the THIR.
match def {
ty::WithOptConstParam { did, const_param_did: Some(const_param_did) } => {
tcx.ensure().thir_check_unsafety_for_const_arg((did, const_param_did))
}
ty::WithOptConstParam { did, const_param_did: None } => {
tcx.ensure().thir_check_unsafety(did)
}
// Ensure unsafeck is ran before we steal the THIR.
match def {
ty::WithOptConstParam { did, const_param_did: Some(const_param_did) } => {
tcx.ensure().thir_check_unsafety_for_const_arg((did, const_param_did))
}
ty::WithOptConstParam { did, const_param_did: None } => {
tcx.ensure().thir_check_unsafety(did)
}
}

5
compiler/rustc_mir_build/src/check_unsafety.rs
View file

@ -329,6 +329,11 @@ impl UnsafeOpKind {
// FIXME: checking unsafety for closures should be handled by their parent body,
// as they inherit their "safety context" from their declaration site.
pub fn check_unsafety<'tcx>(tcx: TyCtxt<'tcx>, def: ty::WithOptConstParam<LocalDefId>) {
// THIR unsafeck is gated under `-Z thir-unsafeck`
if !tcx.sess.opts.debugging_opts.thir_unsafeck {
return;
}
let (thir, expr) = tcx.thir_body(def);
let thir = &thir.borrow();
// If `thir` is empty, a type error occured, skip this body.