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Make Unique::new const function

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This commit is contained in:
Philipp Oppermann 2015-10-13 17:11:49 +02:00
parent a9d5285344
commit 3ed79944e8
1 changed files with 20 additions and 4 deletions
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24
src/libcore/ptr.rs
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@ -498,12 +498,28 @@ unsafe impl<T: Send + ?Sized> Send for Unique<T> { }
#[unstable(feature = "unique", issue = "27730")]
unsafe impl<T: Sync + ?Sized> Sync for Unique<T> { }
#[cfg(stage0)]
macro_rules! unique_new {
() => (
/// Creates a new `Unique`.
pub unsafe fn new(ptr: *mut T) -> Unique<T> {
Unique { pointer: NonZero::new(ptr), _marker: PhantomData }
}
)
}
#[cfg(not(stage0))]
macro_rules! unique_new {
() => (
/// Creates a new `Unique`.
pub unsafe const fn new(ptr: *mut T) -> Unique<T> {
Unique { pointer: NonZero::new(ptr), _marker: PhantomData }
}
)
}
#[unstable(feature = "unique", issue = "27730")]
impl<T: ?Sized> Unique<T> {
/// Creates a new `Unique`.
pub unsafe fn new(ptr: *mut T) -> Unique<T> {
Unique { pointer: NonZero::new(ptr), _marker: PhantomData }
}
unique_new!{}
/// Dereferences the content.
pub unsafe fn get(&self) -> &T {