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silence dead code warnings on windows

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This commit is contained in:
The8472 2021-02-07 09:45:49 +01:00
parent 55ca27faa7
commit 406fd3a277
1 changed files with 5 additions and 0 deletions
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5
library/std/src/sys_common/rwlock.rs
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@ -1,12 +1,15 @@
use crate::sys::rwlock as imp;
#[cfg(unix)]
enum GuardType {
Read,
Write,
}
#[cfg(unix)]
pub struct RWLockGuard(&'static RWLock, GuardType);
#[cfg(unix)]
impl Drop for RWLockGuard {
fn drop(&mut self) {
unsafe {
@ -52,6 +55,7 @@ impl RWLock {
/// Behavior is undefined if the rwlock has been moved between this and any
/// previous method call.
#[inline]
#[cfg(unix)]
pub unsafe fn read_with_guard(&'static self) -> RWLockGuard {
self.read();
RWLockGuard(&self, GuardType::Read)
@ -87,6 +91,7 @@ impl RWLock {
/// Behavior is undefined if the rwlock has been moved between this and any
/// previous method call.
#[inline]
#[cfg(unix)]
pub unsafe fn write_with_guard(&'static self) -> RWLockGuard {
self.write();
RWLockGuard(&self, GuardType::Write)