commit 599fad85bf78d3b3421a4d8f833e618932afd1ca
author David Tolnay <dtolnay@gmail.com> Sat Oct 03 19:42:16 2020 -0700
committer David Tolnay <dtolnay@gmail.com> Sat Oct 03 21:21:32 2020 -0700
tree a1316a9cebccc26e6adb35d6114d800569d80dd7
parent 44198dd15a306922f61da07e08f5aa6492e40a0e

Debug impl for OrderedSet

syntax/set.rs

diff --git a/syntax/set.rs b/syntax/set.rs
index de13088..b553169 100644
--- a/syntax/set.rs
+++ b/syntax/set.rs
@@ -1,4 +1,5 @@
 use std::collections::HashSet;
+use std::fmt::{self, Debug};
 use std::hash::Hash;
 use std::slice;
 
@@ -47,3 +48,12 @@
         self.0.next().copied()
     }
 }
+
+impl<'a, T> Debug for OrderedSet<&'a T>
+where
+    T: Debug,
+{
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.debug_set().entries(self).finish()
+    }
+}