From 0f4294b4e2887ffe9d0532564521c456bb89a780 Mon Sep 17 00:00:00 2001
From: Huon Wilson <dbau.pp+github@gmail.com>
Date: Sat, 15 Feb 2014 12:53:23 +1100
Subject: sync: Add `#[must_use]` to the Mutex guard.

This helps people remember to save the return value to keep the mutex
locked as appropriate.
---
 src/libsync/sync/mutex.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsync/sync')

diff --git a/src/libsync/sync/mutex.rs b/src/libsync/sync/mutex.rs
index b37e2f3a45d..2bd85526e68 100644
--- a/src/libsync/sync/mutex.rs
+++ b/src/libsync/sync/mutex.rs
@@ -143,6 +143,7 @@ pub struct StaticMutex {
 
 /// An RAII implementation of a "scoped lock" of a mutex. When this structure is
 /// dropped (falls out of scope), the lock will be unlocked.
+#[must_use]
 pub struct Guard<'a> {
     priv lock: &'a mut StaticMutex,
 }
-- 
cgit 1.4.1-3-g733a5