Call the method fork instead of clone and add proper comments

2022-02-09 19:37:10 -03:00 · 2022-02-09 19:37:10 -03:00 · f4bb4500dd
commit f4bb4500dd
parent 3fd89a662a
9 changed files with 36 additions and 3 deletions
--- a/compiler/rustc_trait_selection/src/traits/coherence.rs
+++ b/compiler/rustc_trait_selection/src/traits/coherence.rs
@ -379,7 +379,7 @@ fn negative_impl_exists<'cx, 'tcx>(
    region_context: DefId,
    o: &PredicateObligation<'tcx>,
 ) -> bool {
-    let infcx = selcx.infcx().clone();
+    let infcx = &selcx.infcx().fork();
    let tcx = infcx.tcx;
    o.flip_polarity(tcx)
        .map(|o| {