Fold vtable_trait_upcasting_coercion_new_vptr_slot logic into obligation processing.

2021-08-18 12:45:18 +08:00
parent 1e605023ec
commit 6b1c52ff25
11 changed files with 137 additions and 87 deletions
--- a/compiler/rustc_query_impl/src/keys.rs
+++ b/compiler/rustc_query_impl/src/keys.rs
@@ -332,6 +332,16 @@ impl<'tcx> Key for Ty<'tcx> {
    }
 }

+impl<'tcx> Key for (Ty<'tcx>, Ty<'tcx>) {
+    #[inline(always)]
+    fn query_crate_is_local(&self) -> bool {
+        true
+    }
+    fn default_span(&self, _: TyCtxt<'_>) -> Span {
+        DUMMY_SP
+    }
+}
+
 impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> {
    #[inline(always)]
    fn query_crate_is_local(&self) -> bool {