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make safety comments more explicit

This commit is contained in:
TyPR124 2020-03-16 16:22:49 -04:00
parent 16712ede62
commit e4a65e83e7
1 changed files with 4 additions and 4 deletions
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8
src/libstd/sys/windows/os_str.rs
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@ -78,15 +78,15 @@ impl Buf {
pub fn as_slice(&self) -> &Slice {
// Safety: Slice is just a wrapper for Wtf8,
// and as_slice returns &Wtf8. Therefore,
// transmuting &Wtf8 to &Slice is safe.
// and self.inner.as_slice() returns &Wtf8.
// Therefore, transmuting &Wtf8 to &Slice is safe.
unsafe { mem::transmute(self.inner.as_slice()) }
}
pub fn as_mut_slice(&mut self) -> &mut Slice {
// Safety: Slice is just a wrapper for Wtf8,
// and as_mut_slice returns &mut Wtf8. Therefore,
// transmuting &mut Wtf8 to &mut Slice is safe.
// and self.inner.as_mut_slice() returns &mut Wtf8.
// Therefore, transmuting &mut Wtf8 to &mut Slice is safe.
unsafe { mem::transmute(self.inner.as_mut_slice()) }
}