Only compute the trait_map once.

2021-04-04 14:24:27 +02:00
parent 59579907ab
commit 139f7ad637
5 changed files with 19 additions and 27 deletions
--- a/compiler/rustc_resolve/src/lib.rs
+++ b/compiler/rustc_resolve/src/lib.rs
@@ -1138,8 +1138,8 @@ impl ResolverAstLowering for Resolver<'_> {
        self.next_node_id()
    }

-    fn trait_map(&self) -> &NodeMap<Vec<TraitCandidate>> {
-        &self.trait_map
+    fn trait_map(&mut self) -> NodeMap<Vec<TraitCandidate>> {
+        std::mem::take(&mut self.trait_map)
    }

    fn opt_local_def_id(&self, node: NodeId) -> Option<LocalDefId> {