fix RPIT ICE for implicit HRTB when missing dyn

2022-09-05 21:58:12 -03:00
parent 2dc703fd6e
commit 3f45dc1472
4 changed files with 44 additions and 2 deletions
--- a/compiler/rustc_ast_lowering/src/lib.rs
+++ b/compiler/rustc_ast_lowering/src/lib.rs
@@ -1568,8 +1568,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {

                LifetimeRes::Fresh { param, binder: _ } => {
                    debug_assert_eq!(lifetime.ident.name, kw::UnderscoreLifetime);
-                    let old_def_id = self.local_def_id(param);
-                    if remapping.get(&old_def_id).is_none() {
+                    if let Some(old_def_id) = self.opt_local_def_id(param) && remapping.get(&old_def_id).is_none() {
                        let node_id = self.next_node_id();

                        let new_def_id = self.create_def(