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std: Stabilize/deprecate features for 1.4

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The FCP is coming to a close and 1.4 is coming out soon, so this brings in the
libs team decision for all library features this cycle.

Stabilized APIs:

* `<Box<str>>::into_string`
* `Arc::downgrade`
* `Arc::get_mut`
* `Arc::make_mut`
* `Arc::try_unwrap`
* `Box::from_raw`
* `Box::into_raw`
* `CStr::to_str`
* `CStr::to_string_lossy`
* `CString::from_raw`
* `CString::into_raw`
* `IntoRawFd::into_raw_fd`
* `IntoRawFd`
* `IntoRawHandle::into_raw_handle`
* `IntoRawHandle`
* `IntoRawSocket::into_raw_socket`
* `IntoRawSocket`
* `Rc::downgrade`
* `Rc::get_mut`
* `Rc::make_mut`
* `Rc::try_unwrap`
* `Result::expect`
* `String::into_boxed_slice`
* `TcpSocket::read_timeout`
* `TcpSocket::set_read_timeout`
* `TcpSocket::set_write_timeout`
* `TcpSocket::write_timeout`
* `UdpSocket::read_timeout`
* `UdpSocket::set_read_timeout`
* `UdpSocket::set_write_timeout`
* `UdpSocket::write_timeout`
* `Vec::append`
* `Vec::split_off`
* `VecDeque::append`
* `VecDeque::retain`
* `VecDeque::split_off`
* `rc::Weak::upgrade`
* `rc::Weak`
* `slice::Iter::as_slice`
* `slice::IterMut::into_slice`
* `str::CharIndices::as_str`
* `str::Chars::as_str`
* `str::split_at_mut`
* `str::split_at`
* `sync::Weak::upgrade`
* `sync::Weak`
* `thread::park_timeout`
* `thread::sleep`

Deprecated APIs

* `BTreeMap::with_b`
* `BTreeSet::with_b`
* `Option::as_mut_slice`
* `Option::as_slice`
* `Result::as_mut_slice`
* `Result::as_slice`
* `f32::from_str_radix`
* `f64::from_str_radix`

Closes #27277
Closes #27718
Closes #27736
Closes #27764
Closes #27765
Closes #27766
Closes #27767
Closes #27768
Closes #27769
Closes #27771
Closes #27773
Closes #27775
Closes #27776
Closes #27785
Closes #27792
Closes #27795
Closes #27797
This commit is contained in:
Alex Crichton 2015-09-10 13:26:44 -07:00
parent 79c6a4d55c
commit f0b1326dc7
31 changed files with 121 additions and 140 deletions
Download patch file Download diff file Expand all files Collapse all files

30
src/liballoc/arc.rs
View file

@ -137,7 +137,7 @@ impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<Arc<U>> for Arc<T> {}
/// Weak pointers will not keep the data inside of the `Arc` alive, and can be
/// used to break cycles between `Arc` pointers.
#[unsafe_no_drop_flag]
#[unstable(feature = "arc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_weak", since = "1.4.0")]
pub struct Weak<T: ?Sized> {
// FIXME #12808: strange name to try to avoid interfering with
// field accesses of the contained type via Deref
@ -201,7 +201,6 @@ impl<T> Arc<T> {
/// # Examples
///
/// ```
/// #![feature(arc_unique)]
/// use std::sync::Arc;
///
/// let x = Arc::new(3);
@ -212,7 +211,7 @@ impl<T> Arc<T> {
/// assert_eq!(Arc::try_unwrap(x), Err(Arc::new(4)));
/// ```
#[inline]
#[unstable(feature = "arc_unique", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_unique", since = "1.4.0")]
pub fn try_unwrap(this: Self) -> Result<T, Self> {
// See `drop` for why all these atomics are like this
if this.inner().strong.compare_and_swap(1, 0, Release) != 1 { return Err(this) }
@ -238,14 +237,13 @@ impl<T: ?Sized> Arc<T> {
/// # Examples
///
/// ```
/// #![feature(arc_weak)]
/// use std::sync::Arc;
///
/// let five = Arc::new(5);
///
/// let weak_five = Arc::downgrade(&five);
/// ```
#[unstable(feature = "arc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_weak", since = "1.4.0")]
pub fn downgrade(this: &Self) -> Weak<T> {
loop {
// This Relaxed is OK because we're checking the value in the CAS
@ -270,14 +268,16 @@ impl<T: ?Sized> Arc<T> {
/// Get the number of weak references to this value.
#[inline]
#[unstable(feature = "arc_counts", reason = "not clearly useful, and racy", issue = "27718")]
#[unstable(feature = "arc_counts", reason = "not clearly useful, and racy",
issue = "28356")]
pub fn weak_count(this: &Self) -> usize {
this.inner().weak.load(SeqCst) - 1
}
/// Get the number of strong references to this value.
#[inline]
#[unstable(feature = "arc_counts", reason = "not clearly useful, and racy", issue = "27718")]
#[unstable(feature = "arc_counts", reason = "not clearly useful, and racy",
issue = "28356")]
pub fn strong_count(this: &Self) -> usize {
this.inner().strong.load(SeqCst)
}
@ -366,7 +366,8 @@ impl<T: ?Sized> Deref for Arc<T> {
}
impl<T: Clone> Arc<T> {
#[unstable(feature = "arc_unique", reason = "renamed to Arc::make_mut", issue = "27718")]
#[unstable(feature = "arc_make_unique", reason = "renamed to Arc::make_mut",
issue = "27718")]
#[deprecated(since = "1.4.0", reason = "renamed to Arc::make_mut")]
pub fn make_unique(this: &mut Self) -> &mut T {
Arc::make_mut(this)
@ -381,7 +382,6 @@ impl<T: Clone> Arc<T> {
/// # Examples
///
/// ```
/// #![feature(arc_unique)]
/// use std::sync::Arc;
///
/// let mut data = Arc::new(5);
@ -398,7 +398,7 @@ impl<T: Clone> Arc<T> {
///
/// ```
#[inline]
#[unstable(feature = "arc_unique", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_unique", since = "1.4.0")]
pub fn make_mut(this: &mut Self) -> &mut T {
// Note that we hold both a strong reference and a weak reference.
// Thus, releasing our strong reference only will not, by itself, cause
@ -460,7 +460,6 @@ impl<T: ?Sized> Arc<T> {
/// # Examples
///
/// ```
/// #![feature(arc_unique)]
/// use std::sync::Arc;
///
/// let mut x = Arc::new(3);
@ -471,7 +470,7 @@ impl<T: ?Sized> Arc<T> {
/// assert!(Arc::get_mut(&mut x).is_none());
/// ```
#[inline]
#[unstable(feature = "arc_unique", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_unique", since = "1.4.0")]
pub fn get_mut(this: &mut Self) -> Option<&mut T> {
if this.is_unique() {
// This unsafety is ok because we're guaranteed that the pointer
@ -595,7 +594,6 @@ impl<T: ?Sized> Weak<T> {
/// # Examples
///
/// ```
/// #![feature(arc_weak)]
/// use std::sync::Arc;
///
/// let five = Arc::new(5);
@ -604,7 +602,7 @@ impl<T: ?Sized> Weak<T> {
///
/// let strong_five: Option<Arc<_>> = weak_five.upgrade();
/// ```
#[unstable(feature = "arc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_weak", since = "1.4.0")]
pub fn upgrade(&self) -> Option<Arc<T>> {
// We use a CAS loop to increment the strong count instead of a
// fetch_add because once the count hits 0 it must never be above 0.
@ -630,7 +628,7 @@ impl<T: ?Sized> Weak<T> {
}
}
#[unstable(feature = "arc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "arc_weak", since = "1.4.0")]
impl<T: ?Sized> Clone for Weak<T> {
/// Makes a clone of the `Weak<T>`.
///
@ -639,7 +637,6 @@ impl<T: ?Sized> Clone for Weak<T> {
/// # Examples
///
/// ```
/// #![feature(arc_weak)]
/// use std::sync::Arc;
///
/// let weak_five = Arc::downgrade(&Arc::new(5));
@ -672,7 +669,6 @@ impl<T: ?Sized> Drop for Weak<T> {
/// # Examples
///
/// ```
/// #![feature(arc_weak)]
/// use std::sync::Arc;
///
/// {

14
src/liballoc/boxed.rs
View file

@ -226,11 +226,8 @@ impl<T : ?Sized> Box<T> {
/// Function is unsafe, because improper use of this function may
/// lead to memory problems like double-free, for example if the
/// function is called twice on the same raw pointer.
#[unstable(feature = "box_raw",
reason = "may be renamed or moved out of Box scope",
issue = "27768")]
#[stable(feature = "box_raw", since = "1.4.0")]
#[inline]
// NB: may want to be called from_ptr, see comments on CStr::from_ptr
pub unsafe fn from_raw(raw: *mut T) -> Self {
mem::transmute(raw)
}
@ -244,17 +241,14 @@ impl<T : ?Sized> Box<T> {
/// `Box` does not specify, how memory is allocated.
///
/// # Examples
/// ```
/// #![feature(box_raw)]
///
/// ```
/// let seventeen = Box::new(17u32);
/// let raw = Box::into_raw(seventeen);
/// let boxed_again = unsafe { Box::from_raw(raw) };
/// ```
#[unstable(feature = "box_raw", reason = "may be renamed",
issue = "27768")]
#[stable(feature = "box_raw", since = "1.4.0")]
#[inline]
// NB: may want to be called into_ptr, see comments on CStr::from_ptr
pub fn into_raw(b: Box<T>) -> *mut T {
unsafe { mem::transmute(b) }
}
@ -289,8 +283,6 @@ impl<T: Clone> Clone for Box<T> {
/// # Examples
///
/// ```
/// #![feature(box_raw)]
///
/// let x = Box::new(5);
/// let mut y = Box::new(10);
///

2
src/liballoc/lib.rs
View file

@ -100,7 +100,7 @@
#![cfg_attr(stage0, feature(alloc_system))]
#![cfg_attr(not(stage0), feature(needs_allocator))]
#![cfg_attr(test, feature(test, rustc_private, box_raw))]
#![cfg_attr(test, feature(test, rustc_private))]
#[cfg(stage0)]
extern crate alloc_system;

44
src/liballoc/rc.rs
View file

@ -8,7 +8,6 @@
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// FIXME(27718): rc_counts stuff is useful internally, but was previously public
#![allow(deprecated)]
//! Thread-local reference-counted boxes (the `Rc<T>` type).
@ -94,8 +93,6 @@
//! documentation for more details on interior mutability.
//!
//! ```rust
//! #![feature(rc_weak)]
//!
//! use std::rc::Rc;
//! use std::rc::Weak;
//! use std::cell::RefCell;
@ -242,7 +239,7 @@ impl<T> Rc<T> {
/// assert_eq!(Rc::try_unwrap(x), Err(Rc::new(4)));
/// ```
#[inline]
#[unstable(feature = "rc_unique", reason= "needs FCP", issue = "27718")]
#[stable(feature = "rc_unique", since = "1.4.0")]
pub fn try_unwrap(this: Self) -> Result<T, Self> {
if Rc::would_unwrap(&this) {
unsafe {
@ -263,8 +260,9 @@ impl<T> Rc<T> {
}
/// Checks if `Rc::try_unwrap` would return `Ok`.
#[unstable(feature = "rc_would_unwrap", reason = "just added for niche usecase",
issue = "27718")]
#[unstable(feature = "rc_would_unwrap",
reason = "just added for niche usecase",
issue = "28356")]
pub fn would_unwrap(this: &Self) -> bool {
Rc::strong_count(&this) == 1
}
@ -276,15 +274,13 @@ impl<T: ?Sized> Rc<T> {
/// # Examples
///
/// ```
/// #![feature(rc_weak)]
///
/// use std::rc::Rc;
///
/// let five = Rc::new(5);
///
/// let weak_five = Rc::downgrade(&five);
/// ```
#[unstable(feature = "rc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_weak", since = "1.4.0")]
pub fn downgrade(this: &Self) -> Weak<T> {
this.inc_weak();
Weak { _ptr: this._ptr }
@ -292,12 +288,14 @@ impl<T: ?Sized> Rc<T> {
/// Get the number of weak references to this value.
#[inline]
#[unstable(feature = "rc_counts", reason = "not clearly useful", issue = "27718")]
#[unstable(feature = "rc_counts", reason = "not clearly useful",
issue = "28356")]
pub fn weak_count(this: &Self) -> usize { this.weak() - 1 }
/// Get the number of strong references to this value.
#[inline]
#[unstable(feature = "rc_counts", reason = "not clearly useful", issue = "27718")]
#[unstable(feature = "rc_counts", reason = "not clearly useful",
issue = "28356")]
pub fn strong_count(this: &Self) -> usize { this.strong() }
/// Returns true if there are no other `Rc` or `Weak<T>` values that share
@ -315,7 +313,8 @@ impl<T: ?Sized> Rc<T> {
/// assert!(Rc::is_unique(&five));
/// ```
#[inline]
#[unstable(feature = "rc_counts", reason = "uniqueness has unclear meaning", issue = "27718")]
#[unstable(feature = "rc_counts", reason = "uniqueness has unclear meaning",
issue = "28356")]
pub fn is_unique(this: &Self) -> bool {
Rc::weak_count(this) == 0 && Rc::strong_count(this) == 1
}
@ -328,8 +327,6 @@ impl<T: ?Sized> Rc<T> {
/// # Examples
///
/// ```
/// #![feature(rc_unique)]
///
/// use std::rc::Rc;
///
/// let mut x = Rc::new(3);
@ -340,7 +337,7 @@ impl<T: ?Sized> Rc<T> {
/// assert!(Rc::get_mut(&mut x).is_none());
/// ```
#[inline]
#[unstable(feature = "rc_unique", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_unique", since = "1.4.0")]
pub fn get_mut(this: &mut Self) -> Option<&mut T> {
if Rc::is_unique(this) {
let inner = unsafe { &mut **this._ptr };
@ -353,7 +350,8 @@ impl<T: ?Sized> Rc<T> {
impl<T: Clone> Rc<T> {
#[inline]
#[unstable(feature = "rc_unique", reason = "renamed to Rc::make_mut", issue = "27718")]
#[unstable(feature = "rc_make_unique", reason = "renamed to Rc::make_mut",
issue = "27718")]
#[deprecated(since = "1.4.0", reason = "renamed to Rc::make_mut")]
pub fn make_unique(&mut self) -> &mut T {
Rc::make_mut(self)
@ -385,7 +383,7 @@ impl<T: Clone> Rc<T> {
///
/// ```
#[inline]
#[unstable(feature = "rc_unique", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_unique", since = "1.4.0")]
pub fn make_mut(this: &mut Self) -> &mut T {
if Rc::strong_count(this) != 1 {
// Gotta clone the data, there are other Rcs
@ -693,7 +691,7 @@ impl<T> fmt::Pointer for Rc<T> {
///
/// See the [module level documentation](./index.html) for more.
#[unsafe_no_drop_flag]
#[unstable(feature = "rc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_weak", since = "1.4.0")]
pub struct Weak<T: ?Sized> {
// FIXME #12808: strange names to try to avoid interfering with
// field accesses of the contained type via Deref
@ -716,8 +714,6 @@ impl<T: ?Sized> Weak<T> {
/// # Examples
///
/// ```
/// #![feature(rc_weak)]
///
/// use std::rc::Rc;
///
/// let five = Rc::new(5);
@ -726,7 +722,7 @@ impl<T: ?Sized> Weak<T> {
///
/// let strong_five: Option<Rc<_>> = weak_five.upgrade();
/// ```
#[unstable(feature = "rc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_weak", since = "1.4.0")]
pub fn upgrade(&self) -> Option<Rc<T>> {
if self.strong() == 0 {
None
@ -746,8 +742,6 @@ impl<T: ?Sized> Drop for Weak<T> {
/// # Examples
///
/// ```
/// #![feature(rc_weak)]
///
/// use std::rc::Rc;
///
/// {
@ -783,7 +777,7 @@ impl<T: ?Sized> Drop for Weak<T> {
}
}
#[unstable(feature = "rc_weak", reason = "needs FCP", issue = "27718")]
#[stable(feature = "rc_weak", since = "1.4.0")]
impl<T: ?Sized> Clone for Weak<T> {
/// Makes a clone of the `Weak<T>`.
@ -793,8 +787,6 @@ impl<T: ?Sized> Clone for Weak<T> {
/// # Examples
///
/// ```
/// #![feature(rc_weak)]
///
/// use std::rc::Rc;
///
/// let weak_five = Rc::downgrade(&Rc::new(5));

3
src/libcollections/btree/map.rs
View file

@ -149,6 +149,7 @@ pub struct OccupiedEntry<'a, K:'a, V:'a> {
impl<K: Ord, V> BTreeMap<K, V> {
/// Makes a new empty BTreeMap with a reasonable choice for B.
#[stable(feature = "rust1", since = "1.0.0")]
#[allow(deprecated)]
pub fn new() -> BTreeMap<K, V> {
//FIXME(Gankro): Tune this as a function of size_of<K/V>?
BTreeMap::with_b(6)
@ -160,6 +161,7 @@ impl<K: Ord, V> BTreeMap<K, V> {
#[unstable(feature = "btree_b",
reason = "probably want this to be on the type, eventually",
issue = "27795")]
#[deprecated(since = "1.4.0", reason = "niche API")]
pub fn with_b(b: usize) -> BTreeMap<K, V> {
assert!(b > 1, "B must be greater than 1");
BTreeMap {
@ -183,6 +185,7 @@ impl<K: Ord, V> BTreeMap<K, V> {
/// assert!(a.is_empty());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[allow(deprecated)]
pub fn clear(&mut self) {
let b = self.b;
// avoid recursive destructors by manually traversing the tree

2
src/libcollections/btree/set.rs
View file

@ -104,6 +104,8 @@ impl<T: Ord> BTreeSet<T> {
#[unstable(feature = "btree_b",
reason = "probably want this to be on the type, eventually",
issue = "27795")]
#[deprecated(since = "1.4.0", reason = "niche API")]
#[allow(deprecated)]
pub fn with_b(b: usize) -> BTreeSet<T> {
BTreeSet { map: BTreeMap::with_b(b) }
}

10
src/libcollections/str.rs
View file

@ -515,16 +515,14 @@ impl str {
/// assert_eq!(b, " 老虎 Léopard");
/// ```
#[inline]
#[unstable(feature = "str_split_at", reason = "recently added",
issue = "27792")]
#[stable(feature = "str_split_at", since = "1.4.0")]
pub fn split_at(&self, mid: usize) -> (&str, &str) {
core_str::StrExt::split_at(self, mid)
}
/// Divide one mutable string slice into two at an index.
#[inline]
#[unstable(feature = "str_split_at", reason = "recently added",
issue = "27792")]
#[stable(feature = "str_split_at", since = "1.4.0")]
pub fn split_at_mut(&mut self, mid: usize) -> (&mut str, &mut str) {
core_str::StrExt::split_at_mut(self, mid)
}
@ -1505,9 +1503,7 @@ impl str {
}
/// Converts the `Box<str>` into a `String` without copying or allocating.
#[unstable(feature = "box_str",
reason = "recently added, matches RFC",
issue = "27785")]
#[stable(feature = "box_str", since = "1.4.0")]
pub fn into_string(self: Box<str>) -> String {
unsafe {
let slice = mem::transmute::<Box<str>, Box<[u8]>>(self);

6
src/libcollections/string.rs
View file

@ -722,9 +722,7 @@ impl String {
/// Converts the string into `Box<str>`.
///
/// Note that this will drop any excess capacity.
#[unstable(feature = "box_str",
reason = "recently added, matches RFC",
issue = "27785")]
#[stable(feature = "box_str", since = "1.4.0")]
pub fn into_boxed_str(self) -> Box<str> {
let slice = self.vec.into_boxed_slice();
unsafe { mem::transmute::<Box<[u8]>, Box<str>>(slice) }
@ -733,7 +731,7 @@ impl String {
/// Converts the string into `Box<str>`.
///
/// Note that this will drop any excess capacity.
#[unstable(feature = "box_str",
#[unstable(feature = "box_str2",
reason = "recently added, matches RFC",
issue = "27785")]
#[deprecated(since = "1.4.0", reason = "renamed to `into_boxed_str`")]

10
src/libcollections/vec.rs
View file

@ -614,8 +614,6 @@ impl<T> Vec<T> {
/// # Examples
///
/// ```
/// #![feature(append)]
///
/// let mut vec = vec![1, 2, 3];
/// let mut vec2 = vec![4, 5, 6];
/// vec.append(&mut vec2);
@ -623,9 +621,7 @@ impl<T> Vec<T> {
/// assert_eq!(vec2, []);
/// ```
#[inline]
#[unstable(feature = "append",
reason = "new API, waiting for dust to settle",
issue = "27765")]
#[stable(feature = "append", since = "1.4.0")]
pub fn append(&mut self, other: &mut Self) {
self.reserve(other.len());
let len = self.len();
@ -765,9 +761,7 @@ impl<T> Vec<T> {
/// assert_eq!(vec2, [2, 3]);
/// ```
#[inline]
#[unstable(feature = "split_off",
reason = "new API, waiting for dust to settle",
issue = "27766")]
#[stable(feature = "split_off", since = "1.4.0")]
pub fn split_off(&mut self, at: usize) -> Self {
assert!(at <= self.len(), "`at` out of bounds");

14
src/libcollections/vec_deque.rs
View file

@ -1322,9 +1322,7 @@ impl<T> VecDeque<T> {
/// assert_eq!(buf2.len(), 2);
/// ```
#[inline]
#[unstable(feature = "split_off",
reason = "new API, waiting for dust to settle",
issue = "27766")]
#[stable(feature = "split_off", since = "1.4.0")]
pub fn split_off(&mut self, at: usize) -> Self {
let len = self.len();
assert!(at <= len, "`at` out of bounds");
@ -1376,8 +1374,6 @@ impl<T> VecDeque<T> {
/// # Examples
///
/// ```
/// #![feature(append)]
///
/// use std::collections::VecDeque;
///
/// let mut buf: VecDeque<_> = vec![1, 2, 3].into_iter().collect();
@ -1387,9 +1383,7 @@ impl<T> VecDeque<T> {
/// assert_eq!(buf2.len(), 0);
/// ```
#[inline]
#[unstable(feature = "append",
reason = "new API, waiting for dust to settle",
issue = "27765")]
#[stable(feature = "append", since = "1.4.0")]
pub fn append(&mut self, other: &mut Self) {
// naive impl
self.extend(other.drain());
@ -1415,9 +1409,7 @@ impl<T> VecDeque<T> {
/// let v: Vec<_> = buf.into_iter().collect();
/// assert_eq!(&v[..], &[2, 4]);
/// ```
#[unstable(feature = "vec_deque_retain",
reason = "new API, waiting for dust to settle",
issue = "27767")]
#[stable(feature = "vec_deque_retain", since = "1.4.0")]
pub fn retain<F>(&mut self, mut f: F) where F: FnMut(&T) -> bool {
let len = self.len();
let mut del = 0;

4
src/libcore/option.rs
View file

@ -289,6 +289,7 @@ impl<T> Option<T> {
#[unstable(feature = "as_slice",
reason = "waiting for mut conventions",
issue = "27776")]
#[deprecated(since = "1.4.0", reason = "niche API, unclear of usefulness")]
pub fn as_mut_slice(&mut self) -> &mut [T] {
match *self {
Some(ref mut x) => {
@ -690,8 +691,9 @@ impl<T> Option<T> {
/// Converts from `Option<T>` to `&[T]` (without copying)
#[inline]
#[unstable(feature = "as_slice", since = "unsure of the utility here",
#[unstable(feature = "as_slice", reason = "unsure of the utility here",
issue = "27776")]
#[deprecated(since = "1.4.0", reason = "niche API, unclear of usefulness")]
pub fn as_slice(&self) -> &[T] {
match *self {
Some(ref x) => slice::ref_slice(x),

7
src/libcore/result.rs
View file

@ -405,8 +405,9 @@ impl<T, E> Result<T, E> {
/// Converts from `Result<T, E>` to `&[T]` (without copying)
#[inline]
#[unstable(feature = "as_slice", since = "unsure of the utility here",
#[unstable(feature = "as_slice", reason = "unsure of the utility here",
issue = "27776")]
#[deprecated(since = "1.4.0", reason = "niche API, unclear of usefulness")]
pub fn as_slice(&self) -> &[T] {
match *self {
Ok(ref x) => slice::ref_slice(x),
@ -439,6 +440,7 @@ impl<T, E> Result<T, E> {
#[unstable(feature = "as_slice",
reason = "waiting for mut conventions",
issue = "27776")]
#[deprecated(since = "1.4.0", reason = "niche API, unclear of usefulness")]
pub fn as_mut_slice(&mut self) -> &mut [T] {
match *self {
Ok(ref mut x) => slice::mut_ref_slice(x),
@ -742,12 +744,11 @@ impl<T, E: fmt::Debug> Result<T, E> {
///
/// # Examples
/// ```{.should_panic}
/// #![feature(result_expect)]
/// let x: Result<u32, &str> = Err("emergency failure");
/// x.expect("Testing expect"); // panics with `Testing expect: emergency failure`
/// ```
#[inline]
#[unstable(feature = "result_expect", reason = "newly introduced", issue = "27277")]
#[stable(feature = "result_expect", since = "1.4.0")]
pub fn expect(self, msg: &str) -> T {
match self {
Ok(t) => t,

4
src/libcore/slice.rs
View file

@ -800,7 +800,7 @@ impl<'a, T> Iter<'a, T> {
///
/// This has the same lifetime as the original slice, and so the
/// iterator can continue to be used while this exists.
#[unstable(feature = "iter_to_slice", issue = "27775")]
#[stable(feature = "iter_to_slice", since = "1.4.0")]
pub fn as_slice(&self) -> &'a [T] {
make_slice!(self.ptr, self.end)
}
@ -848,7 +848,7 @@ impl<'a, T> IterMut<'a, T> {
/// to consume the iterator. Consider using the `Slice` and
/// `SliceMut` implementations for obtaining slices with more
/// restricted lifetimes that do not consume the iterator.
#[unstable(feature = "iter_to_slice", issue = "27775")]
#[stable(feature = "iter_to_slice", since = "1.4.0")]
pub fn into_slice(self) -> &'a mut [T] {
make_mut_slice!(self.ptr, self.end)
}

4
src/libcore/str/mod.rs
View file

@ -297,7 +297,7 @@ impl<'a> Chars<'a> {
///
/// This has the same lifetime as the original slice, and so the
/// iterator can continue to be used while this exists.
#[unstable(feature = "iter_to_slice", issue = "27775")]
#[stable(feature = "iter_to_slice", since = "1.4.0")]
#[inline]
pub fn as_str(&self) -> &'a str {
unsafe { from_utf8_unchecked(self.iter.as_slice()) }
@ -356,7 +356,7 @@ impl<'a> CharIndices<'a> {
///
/// This has the same lifetime as the original slice, and so the
/// iterator can continue to be used while this exists.
#[unstable(feature = "iter_to_slice", issue = "27775")]
#[stable(feature = "iter_to_slice", since = "1.4.0")]
#[inline]
pub fn as_str(&self) -> &'a str {
self.iter.as_str()

1
src/libcoretest/lib.rs
View file

@ -33,7 +33,6 @@
#![feature(rand)]
#![feature(range_inclusive)]
#![feature(raw)]
#![feature(result_expect)]
#![feature(slice_bytes)]
#![feature(slice_patterns)]
#![feature(step_by)]

1
src/liblog/lib.rs
View file

@ -170,7 +170,6 @@
html_playground_url = "https://play.rust-lang.org/")]
#![deny(missing_docs)]
#![feature(box_raw)]
#![feature(box_syntax)]
#![feature(const_fn)]
#![feature(iter_cmp)]

1
src/librustc/lib.rs
View file

@ -25,7 +25,6 @@
html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
html_root_url = "https://doc.rust-lang.org/nightly/")]
#![feature(append)]
#![feature(associated_consts)]
#![feature(box_patterns)]
#![feature(box_syntax)]

1
src/librustc_resolve/lib.rs
View file

@ -25,7 +25,6 @@
#![feature(rustc_private)]
#![feature(slice_splits)]
#![feature(staged_api)]
#![feature(rc_weak)]
#[macro_use] extern crate log;
#[macro_use] extern crate syntax;

1
src/librustc_trans/lib.rs
View file

@ -42,7 +42,6 @@
#![feature(unicode)]
#![feature(unicode)]
#![feature(vec_push_all)]
#![feature(rc_weak)]
#![allow(trivial_casts)]

1
src/librustc_typeck/lib.rs
View file

@ -75,7 +75,6 @@ This API is completely unstable and subject to change.
#![allow(non_camel_case_types)]
#![feature(append)]
#![feature(box_patterns)]
#![feature(box_syntax)]
#![feature(drain)]

18
src/libstd/ffi/c_str.rs
View file

@ -119,7 +119,7 @@ pub struct CString {
/// Converting a foreign C string into a Rust `String`
///
/// ```no_run
/// # #![feature(libc,cstr_to_str)]
/// # #![feature(libc)]
/// extern crate libc;
/// use std::ffi::CStr;
///
@ -205,7 +205,7 @@ impl CString {
/// The only appropriate argument is a pointer obtained by calling
/// `into_ptr`. The length of the string will be recalculated
/// using the pointer.
#[unstable(feature = "cstr_memory", reason = "recently added",
#[unstable(feature = "cstr_memory2", reason = "recently added",
issue = "27769")]
#[deprecated(since = "1.4.0", reason = "renamed to from_raw")]
pub unsafe fn from_ptr(ptr: *const libc::c_char) -> CString {
@ -217,8 +217,7 @@ impl CString {
/// The only appropriate argument is a pointer obtained by calling
/// `into_raw`. The length of the string will be recalculated
/// using the pointer.
#[unstable(feature = "cstr_memory", reason = "recently added",
issue = "27769")]
#[stable(feature = "cstr_memory", since = "1.4.0")]
pub unsafe fn from_raw(ptr: *mut libc::c_char) -> CString {
let len = libc::strlen(ptr) + 1; // Including the NUL byte
let slice = slice::from_raw_parts(ptr, len as usize);
@ -233,7 +232,7 @@ impl CString {
/// this string.
///
/// Failure to call `from_raw` will lead to a memory leak.
#[unstable(feature = "cstr_memory", reason = "recently added",
#[unstable(feature = "cstr_memory2", reason = "recently added",
issue = "27769")]
#[deprecated(since = "1.4.0", reason = "renamed to into_raw")]
pub fn into_ptr(self) -> *const libc::c_char {
@ -248,8 +247,7 @@ impl CString {
/// this string.
///
/// Failure to call `from_ptr` will lead to a memory leak.
#[unstable(feature = "cstr_memory", reason = "recently added",
issue = "27769")]
#[stable(feature = "cstr_memory", since = "1.4.0")]
pub fn into_raw(self) -> *mut libc::c_char {
Box::into_raw(self.inner) as *mut libc::c_char
}
@ -429,8 +427,7 @@ impl CStr {
/// > after a 0-cost cast, but it is planned to alter its definition in the
/// > future to perform the length calculation in addition to the UTF-8
/// > check whenever this method is called.
#[unstable(feature = "cstr_to_str", reason = "recently added",
issue = "27764")]
#[stable(feature = "cstr_to_str", since = "1.4.0")]
pub fn to_str(&self) -> Result<&str, str::Utf8Error> {
// NB: When CStr is changed to perform the length check in .to_bytes()
// instead of in from_ptr(), it may be worth considering if this should
@ -450,8 +447,7 @@ impl CStr {
/// > after a 0-cost cast, but it is planned to alter its definition in the
/// > future to perform the length calculation in addition to the UTF-8
/// > check whenever this method is called.
#[unstable(feature = "cstr_to_str", reason = "recently added",
issue = "27764")]
#[stable(feature = "cstr_to_str", since = "1.4.0")]
pub fn to_string_lossy(&self) -> Cow<str> {
String::from_utf8_lossy(self.to_bytes())
}

1
src/libstd/lib.rs
View file

@ -203,7 +203,6 @@
#![feature(allow_internal_unstable)]
#![feature(associated_consts)]
#![feature(borrow_state)]
#![feature(box_raw)]
#![feature(box_syntax)]
#![feature(char_from_unchecked)]
#![feature(char_internals)]

24
src/libstd/net/tcp.rs
View file

@ -130,8 +130,13 @@ impl TcpStream {
/// If the value specified is `None`, then `read` calls will block
/// indefinitely. It is an error to pass the zero `Duration` to this
/// method.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
///
/// # Note
///
/// Platforms may return a different error code whenever a read times out as
/// a result of setting this option. For example Unix typically returns an
/// error of the kind `WouldBlock`, but Windows may return `TimedOut`.
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn set_read_timeout(&self, dur: Option<Duration>) -> io::Result<()> {
self.0.set_read_timeout(dur)
}
@ -141,8 +146,13 @@ impl TcpStream {
/// If the value specified is `None`, then `write` calls will block
/// indefinitely. It is an error to pass the zero `Duration` to this
/// method.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
///
/// # Note
///
/// Platforms may return a different error code whenever a write times out
/// as a result of setting this option. For example Unix typically returns
/// an error of the kind `WouldBlock`, but Windows may return `TimedOut`.
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn set_write_timeout(&self, dur: Option<Duration>) -> io::Result<()> {
self.0.set_write_timeout(dur)
}
@ -154,8 +164,7 @@ impl TcpStream {
/// # Note
///
/// Some platforms do not provide access to the current timeout.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn read_timeout(&self) -> io::Result<Option<Duration>> {
self.0.read_timeout()
}
@ -167,8 +176,7 @@ impl TcpStream {
/// # Note
///
/// Some platforms do not provide access to the current timeout.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn write_timeout(&self) -> io::Result<Option<Duration>> {
self.0.write_timeout()
}

24
src/libstd/net/udp.rs
View file

@ -97,8 +97,13 @@ impl UdpSocket {
/// If the value specified is `None`, then `read` calls will block
/// indefinitely. It is an error to pass the zero `Duration` to this
/// method.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
///
/// # Note
///
/// Platforms may return a different error code whenever a read times out as
/// a result of setting this option. For example Unix typically returns an
/// error of the kind `WouldBlock`, but Windows may return `TimedOut`.
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn set_read_timeout(&self, dur: Option<Duration>) -> io::Result<()> {
self.0.set_read_timeout(dur)
}
@ -108,8 +113,13 @@ impl UdpSocket {
/// If the value specified is `None`, then `write` calls will block
/// indefinitely. It is an error to pass the zero `Duration` to this
/// method.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
///
/// # Note
///
/// Platforms may return a different error code whenever a write times out
/// as a result of setting this option. For example Unix typically returns
/// an error of the kind `WouldBlock`, but Windows may return `TimedOut`.
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn set_write_timeout(&self, dur: Option<Duration>) -> io::Result<()> {
self.0.set_write_timeout(dur)
}
@ -117,8 +127,7 @@ impl UdpSocket {
/// Returns the read timeout of this socket.
///
/// If the timeout is `None`, then `read` calls will block indefinitely.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn read_timeout(&self) -> io::Result<Option<Duration>> {
self.0.read_timeout()
}
@ -126,8 +135,7 @@ impl UdpSocket {
/// Returns the write timeout of this socket.
///
/// If the timeout is `None`, then `write` calls will block indefinitely.
#[unstable(feature = "socket_timeout", reason = "RFC 1047 - recently added",
issue = "27773")]
#[stable(feature = "socket_timeout", since = "1.4.0")]
pub fn write_timeout(&self) -> io::Result<Option<Duration>> {
self.0.write_timeout()
}

2
src/libstd/num/f32.rs
View file

@ -125,6 +125,8 @@ impl f32 {
/// Parses a float as with a given radix
#[unstable(feature = "float_from_str_radix", reason = "recently moved API",
issue = "27736")]
#[deprecated(since = "1.4.0",
reason = "unclear how useful or correct this is")]
pub fn from_str_radix(s: &str, radix: u32) -> Result<f32, ParseFloatError> {
num::Float::from_str_radix(s, radix)
}

2
src/libstd/num/f64.rs
View file

@ -82,6 +82,8 @@ impl f64 {
/// Parses a float as with a given radix
#[unstable(feature = "float_from_str_radix", reason = "recently moved API",
issue = "27736")]
#[deprecated(since = "1.4.0",
reason = "unclear how useful or correct this is")]
pub fn from_str_radix(s: &str, radix: u32) -> Result<f64, ParseFloatError> {
num::Float::from_str_radix(s, radix)
}

2
src/libstd/primitive_docs.rs
View file

@ -111,8 +111,6 @@ mod prim_unit { }
/// the raw pointer. It doesn't destroy `T` or deallocate any memory.
///
/// ```
/// #![feature(box_raw)]
///
/// let my_speed: Box<i32> = Box::new(88);
/// let my_speed: *mut i32 = Box::into_raw(my_speed);
///

8
src/libstd/sys/unix/ext/io.rs
View file

@ -61,14 +61,14 @@ pub trait FromRawFd {
/// A trait to express the ability to consume an object and acquire ownership of
/// its raw file descriptor.
#[unstable(feature = "into_raw_os", reason = "recently added API",
issue = "27797")]
#[stable(feature = "into_raw_os", since = "1.4.0")]
pub trait IntoRawFd {
/// Consumes this object, returning the raw underlying file descriptor.
///
/// This function **transfers ownership** of the underlying file descriptor
/// to the caller. Callers are then the unique owners of the file descriptor
/// and must close the descriptor once it's no longer needed.
#[stable(feature = "into_raw_os", since = "1.4.0")]
fn into_raw_fd(self) -> RawFd;
}
@ -84,6 +84,7 @@ impl FromRawFd for fs::File {
fs::File::from_inner(sys::fs::File::from_inner(fd))
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawFd for fs::File {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_fd().into_raw()
@ -125,16 +126,19 @@ impl FromRawFd for net::UdpSocket {
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawFd for net::TcpStream {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_socket().into_inner()
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawFd for net::TcpListener {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_socket().into_inner()
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawFd for net::UdpSocket {
fn into_raw_fd(self) -> RawFd {
self.into_inner().into_socket().into_inner()

12
src/libstd/sys/windows/ext/io.rs
View file

@ -52,14 +52,14 @@ pub trait FromRawHandle {
/// A trait to express the ability to consume an object and acquire ownership of
/// its raw `HANDLE`.
#[unstable(feature = "into_raw_os", reason = "recently added API",
issue = "27797")]
#[stable(feature = "into_raw_os", since = "1.4.0")]
pub trait IntoRawHandle {
/// Consumes this object, returning the raw underlying handle.
///
/// This function **transfers ownership** of the underlying handle to the
/// caller. Callers are then the unique owners of the handle and must close
/// it once it's no longer needed.
#[stable(feature = "into_raw_os", since = "1.4.0")]
fn into_raw_handle(self) -> RawHandle;
}
@ -78,6 +78,7 @@ impl FromRawHandle for fs::File {
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawHandle for fs::File {
fn into_raw_handle(self) -> RawHandle {
self.into_inner().into_handle().into_raw() as *mut _
@ -111,14 +112,14 @@ pub trait FromRawSocket {
/// A trait to express the ability to consume an object and acquire ownership of
/// its raw `SOCKET`.
#[unstable(feature = "into_raw_os", reason = "recently added API",
issue = "27797")]
#[stable(feature = "into_raw_os", since = "1.4.0")]
pub trait IntoRawSocket {
/// Consumes this object, returning the raw underlying socket.
///
/// This function **transfers ownership** of the underlying socket to the
/// caller. Callers are then the unique owners of the socket and must close
/// it once it's no longer needed.
#[stable(feature = "into_raw_os", since = "1.4.0")]
fn into_raw_socket(self) -> RawSocket;
}
@ -163,18 +164,21 @@ impl FromRawSocket for net::UdpSocket {
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawSocket for net::TcpStream {
fn into_raw_socket(self) -> RawSocket {
self.into_inner().into_socket().into_inner()
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawSocket for net::TcpListener {
fn into_raw_socket(self) -> RawSocket {
self.into_inner().into_socket().into_inner()
}
}
#[stable(feature = "into_raw_os", since = "1.4.0")]
impl IntoRawSocket for net::UdpSocket {
fn into_raw_socket(self) -> RawSocket {
self.into_inner().into_socket().into_inner()

6
src/libstd/thread/mod.rs
View file

@ -410,8 +410,7 @@ pub fn sleep_ms(ms: u32) {
/// signal being received or a spurious wakeup. Platforms which do not support
/// nanosecond precision for sleeping will have `dur` rounded up to the nearest
/// granularity of time they can sleep for.
#[unstable(feature = "thread_sleep", reason = "waiting on Duration",
issue = "27771")]
#[stable(feature = "thread_sleep", since = "1.4.0")]
pub fn sleep(dur: Duration) {
imp::Thread::sleep(dur)
}
@ -481,8 +480,7 @@ pub fn park_timeout_ms(ms: u32) {
///
/// Platforms which do not support nanosecond precision for sleeping will have
/// `dur` rounded up to the nearest granularity of time they can sleep for.
#[unstable(feature = "park_timeout", reason = "waiting on Duration",
issue = "27771")]
#[stable(feature = "park_timeout", since = "1.4.0")]
pub fn park_timeout(dur: Duration) {
let thread = current();
let mut guard = thread.inner.lock.lock().unwrap();

2
src/test/run-pass/std-sync-right-kind-impls.rs
View file

@ -11,7 +11,7 @@
// pretty-expanded FIXME #23616
#![feature(static_mutex, static_rwlock, static_condvar)]
#![feature(arc_weak, semaphore)]
#![feature(semaphore)]
use std::sync;