address review comments

2020-10-09 16:51:54 -07:00
parent fdbe4ce5c1
commit 4ae8f6ec7c
4 changed files with 97 additions and 9 deletions
--- a/compiler/rustc_ast/src/ast.rs
+++ b/compiler/rustc_ast/src/ast.rs
@@ -1884,6 +1884,16 @@ impl Clone for Ty {
    }
 }

+impl Ty {
+    pub fn peel_refs(&self) -> &Self {
+        let mut final_ty = self;
+        while let TyKind::Rptr(_, MutTy { ty, .. }) = &final_ty.kind {
+            final_ty = &ty;
+        }
+        final_ty
+    }
+}
+
 #[derive(Clone, Encodable, Decodable, Debug)]
 pub struct BareFnTy {
    pub unsafety: Unsafe,