bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

MIR-Validate StorageLive.

Browse source
This commit is contained in:
Camille GILLOT 2023-01-31 17:14:04 +00:00
parent 07c993eba8
commit 9aa4f6acb2
3 changed files with 56 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

15
compiler/rustc_const_eval/src/transform/validate.rs
View file

@ -755,8 +755,19 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> {
self.fail(location, format!("explicit `{:?}` is forbidden", kind));
}
}
StatementKind::StorageLive(..)
| StatementKind::StorageDead(..)
StatementKind::StorageLive(local) => {
if self.reachable_blocks.contains(location.block) {
self.storage_liveness.seek_before_primary_effect(location);
let locals_with_storage = self.storage_liveness.get();
if locals_with_storage.contains(*local) {
self.fail(
location,
format!("StorageLive({local:?}) which already has storage here"),
);
}
}
}
StatementKind::StorageDead(_)
| StatementKind::Coverage(_)
| StatementKind::ConstEvalCounter
| StatementKind::Nop => {}