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| author | Manish Goregaokar <manishsmail@gmail.com> | 2018-05-07 09:27:50 -0700 |
|---|---|---|
| committer | Manish Goregaokar <manishsmail@gmail.com> | 2018-05-07 10:26:28 -0700 |
| commit | f8b774fbf1f57e520b58ae3828e4b3a1ddf1d97c (patch) | |
| tree | 6ff66cfcfe7d724a5f2fd7248e4e818123a19f9f /src/libstd/sys_common | |
| parent | 6e49c837f614a8670a5773428b4934eb280bca61 (diff) | |
| download | rust-f8b774fbf1f57e520b58ae3828e4b3a1ddf1d97c.tar.gz rust-f8b774fbf1f57e520b58ae3828e4b3a1ddf1d97c.zip | |
Add explanation for #[must_use] on mutex guards
Diffstat (limited to 'src/libstd/sys_common')
| -rw-r--r-- | src/libstd/sys_common/remutex.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstd/sys_common/remutex.rs b/src/libstd/sys_common/remutex.rs index ce43ec6d9ab..022056f8a8a 100644 --- a/src/libstd/sys_common/remutex.rs +++ b/src/libstd/sys_common/remutex.rs @@ -41,7 +41,7 @@ unsafe impl<T: Send> Sync for ReentrantMutex<T> {} /// because implementation of the trait would violate Rust’s reference aliasing /// rules. Use interior mutability (usually `RefCell`) in order to mutate the /// guarded data. -#[must_use] +#[must_use = "if unused the ReentrantMutex will immediately unlock"] pub struct ReentrantMutexGuard<'a, T: 'a> { // funny underscores due to how Deref currently works (it disregards field // privacy). |