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std: Tidy up some unsafe impls for sync

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This commit removes many unnecessary `unsafe impl` blocks as well as pushing the
needed implementations to the lowest level possible. I noticed that the bounds
for `RwLock` are a little off when reviewing #22574 and wanted to ensure that we
had our story straight on these implementations.
This commit is contained in:
Alex Crichton 2015-02-20 12:00:26 -08:00
parent 522d09dfec
commit 64fe93e49d
12 changed files with 68 additions and 25 deletions
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27
src/test/run-pass/std-sync-right-kind-impls.rs Normal file
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::sync;
fn assert_both<T: Sync + Send>() {}
fn main() {
assert_both::<sync::StaticMutex>();
assert_both::<sync::StaticCondvar>();
assert_both::<sync::StaticRwLock>();
assert_both::<sync::Mutex<()>>();
assert_both::<sync::Condvar>();
assert_both::<sync::RwLock<()>>();
assert_both::<sync::Semaphore>();
assert_both::<sync::Barrier>();
assert_both::<sync::Arc<()>>();
assert_both::<sync::Weak<()>>();
assert_both::<sync::Once>();
}