From c725926cf5964c4510e2c9ee656c24c48451e88c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Steinbrink?= <bsteinbr@gmail.com>
Date: Wed, 31 Jul 2013 10:15:52 +0200
Subject: [PATCH] Reduce code bloat from assert!()

Assertions without a message get a generated message that consists of a
prefix plus the stringified expression that is being asserted. That
prefix is currently a unique string, while a static string would be
sufficient and needs less code.
---
 src/libsyntax/ext/expand.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libsyntax/ext/expand.rs b/src/libsyntax/ext/expand.rs
index af05f726860..f3a55da88cb 100644
--- a/src/libsyntax/ext/expand.rs
+++ b/src/libsyntax/ext/expand.rs
@@ -529,7 +529,7 @@ pub fn std_macros() -> @str {
         ($cond:expr) => {
             if !$cond {
                 ::std::sys::FailWithCause::fail_with(
-                    ~\"assertion failed: \" + stringify!($cond), file!(), line!())
+                    \"assertion failed: \" + stringify!($cond), file!(), line!())
             }
         };
         ($cond:expr, $msg:expr) => {