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Handle DropAndReplace in const-checking

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It runs before the real drop elaboration pass.
This commit is contained in:
Dylan MacKenzie
2021-11-30 15:45:16 -08:00
parent ce2959da97
commit 3e0e8be037
1 changed files with 2 additions and 6 deletions
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8
compiler/rustc_const_eval/src/transform/check_consts/post_drop_elaboration.rs
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@@ -80,7 +80,8 @@ impl Visitor<'tcx> for CheckLiveDrops<'mir, 'tcx> {
trace!("visit_terminator: terminator={:?} location={:?}", terminator, location); trace!("visit_terminator: terminator={:?} location={:?}", terminator, location);
match &terminator.kind { match &terminator.kind {
mir::TerminatorKind::Drop { place: dropped_place, .. } => { mir::TerminatorKind::Drop { place: dropped_place, .. }
| mir::TerminatorKind::DropAndReplace { place: dropped_place, .. } => {
let dropped_ty = dropped_place.ty(self.body, self.tcx).ty; let dropped_ty = dropped_place.ty(self.body, self.tcx).ty;
if !NeedsNonConstDrop::in_any_value_of_ty(self.ccx, dropped_ty) { if !NeedsNonConstDrop::in_any_value_of_ty(self.ccx, dropped_ty) {
// Instead of throwing a bug, we just return here. This is because we have to // Instead of throwing a bug, we just return here. This is because we have to
@@ -104,11 +105,6 @@ impl Visitor<'tcx> for CheckLiveDrops<'mir, 'tcx> {
} }
} }
mir::TerminatorKind::DropAndReplace { .. } => span_bug!(
terminator.source_info.span,
"`DropAndReplace` should be removed by drop elaboration",
),
mir::TerminatorKind::Abort mir::TerminatorKind::Abort
| mir::TerminatorKind::Call { .. } | mir::TerminatorKind::Call { .. }
| mir::TerminatorKind::Assert { .. } | mir::TerminatorKind::Assert { .. }