bjoernager/rust
bjoernager/rust
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only erase param env regions where needed

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This commit is contained in:
lcnr 2023-10-26 12:19:23 +02:00
parent 57253552de
commit a582e9638b
2 changed files with 2 additions and 2 deletions
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2
compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs
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@ -298,7 +298,7 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>(
// While we conservatively assume that all coroutines require drop
// to avoid query cycles during MIR building, we can check the actual
// witness during borrowck to avoid unnecessary liveness constraints.
if args.witness().needs_drop(tcx, param_env) {
if args.witness().needs_drop(tcx, tcx.erase_regions(param_env)) {
constraints.outlives.extend(args.upvar_tys().iter().map(ty::GenericArg::from));
constraints.outlives.push(args.resume_ty().into());
}