bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

fix: skip implied bounds if unconstrained lifetime exists

Browse source
This commit is contained in:
Ezra Shaw 2023-04-13 20:29:41 +12:00
parent a29dada983
commit ecf2a9b75e
No known key found for this signature in database
GPG key ID: 67ABF16FB0ECD870
3 changed files with 46 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

11
compiler/rustc_trait_selection/src/traits/outlives_bounds.rs
View file

@ -55,7 +55,16 @@ impl<'a, 'tcx: 'a> InferCtxtExt<'a, 'tcx> for InferCtxt<'tcx> {
) -> Vec<OutlivesBound<'tcx>> {
let ty = self.resolve_vars_if_possible(ty);
let ty = OpportunisticRegionResolver::new(self).fold_ty(ty);
assert!(!ty.needs_infer());
// We must avoid processing constrained lifetime variables in implied
// bounds. See #110161 for context.
if ty.needs_infer() {
self.tcx.sess.delay_span_bug(
self.tcx.source_span_untracked(body_id),
"skipped implied_outlives_bounds due to unconstrained lifetimes",
);
return vec![];
}
let span = self.tcx.def_span(body_id);
let result = param_env