From 0f20cae37fd703f344d226170ebe440ab76fe565 Mon Sep 17 00:00:00 2001
From: Brian Anderson <banderson@mozilla.com>
Date: Fri, 18 May 2012 16:50:16 -0700
Subject: std: Don't copy hash key until we must

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

(limited to 'src/libstd')

diff --git a/src/libstd/map.rs b/src/libstd/map.rs
index a72e87475b2..9d0f7b4c383 100644
--- a/src/libstd/map.rs
+++ b/src/libstd/map.rs
@@ -131,8 +131,8 @@ mod chained {
             ret not_found;
           }
           present(e) {
-            let e_key = e.key; // Satisfy alias checker.
-            if e.hash == h && tbl.eqer(e_key, k) {
+            // FIXME: This copy of the key is not good for perf
+            if e.hash == h && tbl.eqer(copy e.key, k) {
                 #debug("search_tbl: present, comp %u, hash %u, idx %u",
                        1u, h, idx);
                 ret found_first(idx, e);
-- 
cgit 1.4.1-3-g733a5