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Stablize RefCell::{replace, swap} #46517

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merged 3 commits into from
Dec 20, 2017
Merged

Stablize RefCell::{replace, swap} #46517

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fd064e0
Stablize RefCell::{replace, swap}
notriddle Dec 5, 2017
28a19bf
Move replace_with to its own feature flag
notriddle Dec 5, 2017
19775f7
Update cell.rs
notriddle Dec 5, 2017
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8 changes: 3 additions & 5 deletions src/libcore/cell.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -584,15 +584,14 @@ impl<T> RefCell<T> {
/// # Examples
///
/// ```
/// #![feature(refcell_replace_swap)]
/// use std::cell::RefCell;
/// let cell = RefCell::new(5);
/// let old_value = cell.replace(6);
/// assert_eq!(old_value, 5);
/// assert_eq!(cell, RefCell::new(6));
/// ```
#[inline]
#[unstable(feature = "refcell_replace_swap", issue="43570")]
#[stable(feature = "refcell_replace_swap", since="1.24.0")]
pub fn replace(&self, t: T) -> T {
mem::replace(&mut *self.borrow_mut(), t)
}
Expand All @@ -617,7 +616,7 @@ impl<T> RefCell<T> {
/// assert_eq!(cell, RefCell::new(6));
/// ```
#[inline]
#[unstable(feature = "refcell_replace_swap", issue="43570")]
#[unstable(feature = "refcell_replace_with", issue="43570")]
pub fn replace_with<F: FnOnce(&mut T) -> T>(&self, f: F) -> T {
let mut_borrow = &mut *self.borrow_mut();
let replacement = f(mut_borrow);
Expand All @@ -636,7 +635,6 @@ impl<T> RefCell<T> {
/// # Examples
///
/// ```
/// #![feature(refcell_replace_swap)]
/// use std::cell::RefCell;
/// let c = RefCell::new(5);
/// let d = RefCell::new(6);
Expand All @@ -645,7 +643,7 @@ impl<T> RefCell<T> {
/// assert_eq!(d, RefCell::new(5));
/// ```
#[inline]
#[unstable(feature = "refcell_replace_swap", issue="43570")]
#[stable(feature = "refcell_replace_swap", since="1.24.0")]
pub fn swap(&self, other: &Self) {
mem::swap(&mut *self.borrow_mut(), &mut *other.borrow_mut())
}
Expand Down