From 360bdf653b91f5232a5584c7f4b13960caa48dda Mon Sep 17 00:00:00 2001
From: Josh Mcguigan <joshmcg88@gmail.com>
Date: Tue, 14 Apr 2020 16:06:57 -0700
Subject: fix false positive for enum with no variants

---
 crates/ra_hir_ty/src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'crates/ra_hir_ty/src/lib.rs')

diff --git a/crates/ra_hir_ty/src/lib.rs b/crates/ra_hir_ty/src/lib.rs
index 18f74d3b1..2677f3af2 100644
--- a/crates/ra_hir_ty/src/lib.rs
+++ b/crates/ra_hir_ty/src/lib.rs
@@ -680,6 +680,16 @@ impl Ty {
         }
     }
 
+    pub fn strip_references(&self) -> &Ty {
+        let mut t: &Ty = self;
+
+        while let Ty::Apply(ApplicationTy { ctor: TypeCtor::Ref(_mutability), parameters }) = t {
+            t = parameters.as_single();
+        }
+
+        t
+    }
+
     pub fn as_adt(&self) -> Option<(AdtId, &Substs)> {
         match self {
             Ty::Apply(ApplicationTy { ctor: TypeCtor::Adt(adt_def), parameters }) => {
-- 
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