add comment

2022-02-21 10:23:36 +01:00 · 2022-02-21 10:23:36 +01:00 · 239f33ea5b
commit 239f33ea5b
parent 026d8ce7f5
1 changed files with 1 additions and 0 deletions
--- a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
@ -100,6 +100,7 @@ pub fn leak_check(
 struct LeakCheck<'me, 'tcx> {
    tcx: TyCtxt<'tcx>,
    universe_at_start_of_snapshot: ty::UniverseIndex,
+    /// Only used when reporting region errors.
    overly_polymorphic: bool,
    mini_graph: &'me MiniGraph<'tcx>,
    rcc: &'me RegionConstraintCollector<'me, 'tcx>,