From 8465daf9825a380d3109ecf9fd79945f5e9b367a Mon Sep 17 00:00:00 2001
From: John Kåre Alsaker <john.kare.alsaker@gmail.com>
Date: Sun, 16 Jun 2019 01:32:38 +0200
Subject: Check for local types in writeback with debug assertions

---
 src/librustc_data_structures/transitive_relation.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/librustc_data_structures')

diff --git a/src/librustc_data_structures/transitive_relation.rs b/src/librustc_data_structures/transitive_relation.rs
index 0974607fabe..d7cbd1e2e4b 100644
--- a/src/librustc_data_structures/transitive_relation.rs
+++ b/src/librustc_data_structures/transitive_relation.rs
@@ -58,6 +58,10 @@ impl<T: Clone + Debug + Eq + Hash> TransitiveRelation<T> {
         self.edges.is_empty()
     }
 
+    pub fn elements(&self) -> impl Iterator<Item=&T> {
+        self.elements.iter()
+    }
+
     fn index(&self, a: &T) -> Option<Index> {
         self.map.get(a).cloned()
     }
-- 
cgit 1.4.1-3-g733a5