From c7711002bb3eed4ecbc8c8da63c97681fd1588e6 Mon Sep 17 00:00:00 2001
From: Ariel Ben-Yehuda <ariel.byd@gmail.com>
Date: Tue, 26 May 2015 00:41:27 +0300
Subject: Make caching in stability work. This improves stability check
 performance by 90%.

---
 src/libsyntax/attr.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/libsyntax')

diff --git a/src/libsyntax/attr.rs b/src/libsyntax/attr.rs
index 755dd3bb458..3c4c4d70343 100644
--- a/src/libsyntax/attr.rs
+++ b/src/libsyntax/attr.rs
@@ -366,7 +366,7 @@ pub fn cfg_matches(diagnostic: &SpanHandler, cfgs: &[P<MetaItem>], cfg: &ast::Me
 }
 
 /// Represents the #[deprecated] and friends attributes.
-#[derive(RustcEncodable,RustcDecodable,Clone,Debug)]
+#[derive(RustcEncodable, RustcDecodable, Clone, Debug, PartialEq, Eq, Hash)]
 pub struct Stability {
     pub level: StabilityLevel,
     pub feature: InternedString,
@@ -378,7 +378,7 @@ pub struct Stability {
 }
 
 /// The available stability levels.
-#[derive(RustcEncodable,RustcDecodable,PartialEq,PartialOrd,Clone,Debug,Copy)]
+#[derive(RustcEncodable, RustcDecodable, PartialEq, PartialOrd, Clone, Debug, Copy, Eq, Hash)]
 pub enum StabilityLevel {
     Unstable,
     Stable,
-- 
cgit 1.4.1-3-g733a5