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alloc: Stabilize rc module.

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Weak pointers experimental. Most everything else stable.
This commit is contained in:
Brian Anderson 2014-07-18 16:02:14 -07:00
parent 71f3d8fc1f
commit cf8bfde9d3
1 changed files with 18 additions and 1 deletions
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19
src/liballoc/rc.rs
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@ -148,6 +148,8 @@ fn main() {
*/
#![stable]
use core::mem::transmute;
use core::cell::Cell;
use core::clone::Clone;
@ -171,6 +173,7 @@ struct RcBox<T> {
/// Immutable reference counted pointer type
#[unsafe_no_drop_flag]
#[stable]
pub struct Rc<T> {
// FIXME #12808: strange names to try to avoid interfering with
// field accesses of the contained type via Deref
@ -179,6 +182,7 @@ pub struct Rc<T> {
_noshare: marker::NoShare
}
#[stable]
impl<T> Rc<T> {
/// Construct a new reference-counted box
pub fn new(value: T) -> Rc<T> {
@ -203,6 +207,7 @@ impl<T> Rc<T> {
impl<T> Rc<T> {
/// Downgrade the reference-counted pointer to a weak reference
#[experimental = "Weak pointers may not belong in this module."]
pub fn downgrade(&self) -> Weak<T> {
self.inc_weak();
Weak {
@ -238,6 +243,7 @@ impl<T: Clone> Rc<T> {
}
}
#[experimental = "Deref is experimental."]
impl<T> Deref<T> for Rc<T> {
/// Borrow the value contained in the reference-counted box
#[inline(always)]
@ -247,6 +253,7 @@ impl<T> Deref<T> for Rc<T> {
}
#[unsafe_destructor]
#[experimental = "Drop is experimental."]
impl<T> Drop for Rc<T> {
fn drop(&mut self) {
unsafe {
@ -269,7 +276,7 @@ impl<T> Drop for Rc<T> {
}
}
#[unstable]
#[unstable = "Clone is unstable."]
impl<T> Clone for Rc<T> {
#[inline]
fn clone(&self) -> Rc<T> {
@ -278,6 +285,7 @@ impl<T> Clone for Rc<T> {
}
}
#[stable]
impl<T: Default> Default for Rc<T> {
#[inline]
fn default() -> Rc<T> {
@ -285,6 +293,7 @@ impl<T: Default> Default for Rc<T> {
}
}
#[unstable = "PartialEq is unstable."]
impl<T: PartialEq> PartialEq for Rc<T> {
#[inline(always)]
fn eq(&self, other: &Rc<T>) -> bool { **self == **other }
@ -292,8 +301,10 @@ impl<T: PartialEq> PartialEq for Rc<T> {
fn ne(&self, other: &Rc<T>) -> bool { **self != **other }
}
#[unstable = "Eq is unstable."]
impl<T: Eq> Eq for Rc<T> {}
#[unstable = "PartialOrd is unstable."]
impl<T: PartialOrd> PartialOrd for Rc<T> {
#[inline(always)]
fn partial_cmp(&self, other: &Rc<T>) -> Option<Ordering> {
@ -313,11 +324,13 @@ impl<T: PartialOrd> PartialOrd for Rc<T> {
fn ge(&self, other: &Rc<T>) -> bool { **self >= **other }
}
#[unstable = "Ord is unstable."]
impl<T: Ord> Ord for Rc<T> {
#[inline]
fn cmp(&self, other: &Rc<T>) -> Ordering { (**self).cmp(&**other) }
}
#[experimental = "Show is experimental."]
impl<T: fmt::Show> fmt::Show for Rc<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
(**self).fmt(f)
@ -326,6 +339,7 @@ impl<T: fmt::Show> fmt::Show for Rc<T> {
/// Weak reference to a reference-counted box
#[unsafe_no_drop_flag]
#[experimental = "Weak pointers may not belong in this module."]
pub struct Weak<T> {
// FIXME #12808: strange names to try to avoid interfering with
// field accesses of the contained type via Deref
@ -334,6 +348,7 @@ pub struct Weak<T> {
_noshare: marker::NoShare
}
#[experimental = "Weak pointers may not belong in this module."]
impl<T> Weak<T> {
/// Upgrade a weak reference to a strong reference
pub fn upgrade(&self) -> Option<Rc<T>> {
@ -347,6 +362,7 @@ impl<T> Weak<T> {
}
#[unsafe_destructor]
#[experimental = "Weak pointers may not belong in this module."]
impl<T> Drop for Weak<T> {
fn drop(&mut self) {
unsafe {
@ -364,6 +380,7 @@ impl<T> Drop for Weak<T> {
}
#[unstable]
#[experimental = "Weak pointers may not belong in this module."]
impl<T> Clone for Weak<T> {
#[inline]
fn clone(&self) -> Weak<T> {