rust/src/libstd/sync, branch 1.22.0

Add missing urls for Mutex

2017-10-04T12:03:23+00:00

std::sync::RwLock docs improvement

2017-09-23T02:12:21+00:00

change #![feature(const_fn)] to specific gates

2017-09-16T15:53:02+00:00

Rollup merge of #43891 - Fourchaux:master, r=steveklabnik

2017-08-17T14:44:07+00:00

Fix typos & us spellings Fixing some typos and non en-US spellings. (Update of PR https://github.com/rust-lang/rust/pull/42812 )

use field init shorthand EVERYWHERE

2017-08-15T22:29:17+00:00

Like #43008 (f668999), but _much more aggressive_.

Fix typos & us spellings

2017-08-15T19:56:30+00:00

Auto merge of #43582 - ivanbakel:unused_mut_ref, r=arielb1

2017-08-10T08:53:22+00:00

Fixed mutable vars being marked used when they weren't #### NB : bootstrapping is slow on my machine, even with `keep-stage` - fixes for occurances in the current codebase are ~~in the pipeline~~ done. This PR is being put up for review of the fix of the issue. Fixes #43526, Fixes #30280, Fixes #25049 ### Issue Whenever the compiler detected a mutable deref being used mutably, it marked an associated value as being used mutably as well. In the case of derefencing local variables which were mutable references, this incorrectly marked the reference itself being used mutably, instead of its contents - with the consequence of making the following code emit no warnings ``` fn do_thing(mut arg : &mut T) { ... // don't touch arg - just deref it to access the T } ``` ### Fix Make dereferences not be counted as a mutable use, but only when they're on borrows on local variables. #### Why not on things other than local variables? * Whenever you capture a variable in a closure, it gets turned into a hidden reference - when you use it in the closure, it gets dereferenced. If the closure uses the variable mutably, that is actually a mutable use of the thing being dereffed to, so it has to be counted. * If you deref a mutable `Box` to access the contents mutably, you are using the `Box` mutably - so it has to be counted.

Use explicit wrapping_add to prevent potential unexpected behavior on debug builds

2017-08-08T20:58:09+00:00

Fixed all unnecessary muts in language core

2017-08-01T22:01:24+00:00

Correct some stability attributes

2017-07-10T01:07:29+00:00

These show up in rustdoc so need to be correct.