mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Stabilize iter::repeat_n

Browse Source
This commit is contained in:
Scott McMurray 2024-08-19 22:39:04 -07:00
parent 79611d90b6
commit dfea11d620
5 changed files with 10 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
library/alloc/src/lib.rs
View File

@ -131,7 +131,6 @@
#![feature(inplace_iteration)] #![feature(inplace_iteration)]
#![feature(iter_advance_by)] #![feature(iter_advance_by)]
#![feature(iter_next_chunk)] #![feature(iter_next_chunk)]
#![feature(iter_repeat_n)]
#![feature(layout_for_ptr)] #![feature(layout_for_ptr)]
#![feature(local_waker)] #![feature(local_waker)]
#![feature(maybe_uninit_slice)] #![feature(maybe_uninit_slice)]

2
library/core/src/iter/mod.rs
View File

@ -436,7 +436,7 @@ fn $fold<AAA, FFF>(mut self, init: AAA, fold: FFF) -> AAA
pub use self::sources::{once_with, OnceWith}; pub use self::sources::{once_with, OnceWith};
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
pub use self::sources::{repeat, Repeat}; pub use self::sources::{repeat, Repeat};
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
pub use self::sources::{repeat_n, RepeatN}; pub use self::sources::{repeat_n, RepeatN};
#[stable(feature = "iterator_repeat_with", since = "1.28.0")] #[stable(feature = "iterator_repeat_with", since = "1.28.0")]
pub use self::sources::{repeat_with, RepeatWith}; pub use self::sources::{repeat_with, RepeatWith};

2
library/core/src/iter/sources.rs
View File

@ -24,7 +24,7 @@
pub use self::once_with::{once_with, OnceWith}; pub use self::once_with::{once_with, OnceWith};
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
pub use self::repeat::{repeat, Repeat}; pub use self::repeat::{repeat, Repeat};
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
pub use self::repeat_n::{repeat_n, RepeatN}; pub use self::repeat_n::{repeat_n, RepeatN};
#[stable(feature = "iterator_repeat_with", since = "1.28.0")] #[stable(feature = "iterator_repeat_with", since = "1.28.0")]
pub use self::repeat_with::{repeat_with, RepeatWith}; pub use self::repeat_with::{repeat_with, RepeatWith};

18
library/core/src/iter/sources/repeat_n.rs
View File

@ -18,7 +18,6 @@
/// Basic usage: /// Basic usage:
/// ///
/// ``` /// ```
/// #![feature(iter_repeat_n)]
/// use std::iter; /// use std::iter;
/// ///
/// // four of the number four: /// // four of the number four:
@ -36,7 +35,6 @@
/// For non-`Copy` types, /// For non-`Copy` types,
/// ///
/// ``` /// ```
/// #![feature(iter_repeat_n)]
/// use std::iter; /// use std::iter;
/// ///
/// let v: Vec<i32> = Vec::with_capacity(123); /// let v: Vec<i32> = Vec::with_capacity(123);
@ -58,7 +56,7 @@
/// assert_eq!(None, it.next()); /// assert_eq!(None, it.next());
/// ``` /// ```
#[inline] #[inline]
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
pub fn repeat_n<T: Clone>(element: T, count: usize) -> RepeatN<T> { pub fn repeat_n<T: Clone>(element: T, count: usize) -> RepeatN<T> {
let mut element = ManuallyDrop::new(element); let mut element = ManuallyDrop::new(element);
@ -77,7 +75,7 @@ pub fn repeat_n<T: Clone>(element: T, count: usize) -> RepeatN<T> {
/// This `struct` is created by the [`repeat_n()`] function. /// This `struct` is created by the [`repeat_n()`] function.
/// See its documentation for more. /// See its documentation for more.
#[derive(Clone, Debug)] #[derive(Clone, Debug)]
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
pub struct RepeatN<A> { pub struct RepeatN<A> {
count: usize, count: usize,
// Invariant: has been dropped iff count == 0. // Invariant: has been dropped iff count == 0.
@ -101,14 +99,14 @@ fn take_element(&mut self) -> Option<A> {
} }
} }
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A> Drop for RepeatN<A> { impl<A> Drop for RepeatN<A> {
fn drop(&mut self) { fn drop(&mut self) {
self.take_element(); self.take_element();
} }
} }
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A: Clone> Iterator for RepeatN<A> { impl<A: Clone> Iterator for RepeatN<A> {
type Item = A; type Item = A;
@ -156,14 +154,14 @@ fn count(self) -> usize {
} }
} }
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A: Clone> ExactSizeIterator for RepeatN<A> { impl<A: Clone> ExactSizeIterator for RepeatN<A> {
fn len(&self) -> usize { fn len(&self) -> usize {
self.count self.count
} }
} }
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A: Clone> DoubleEndedIterator for RepeatN<A> { impl<A: Clone> DoubleEndedIterator for RepeatN<A> {
#[inline] #[inline]
fn next_back(&mut self) -> Option<A> { fn next_back(&mut self) -> Option<A> {
@ -181,12 +179,12 @@ fn nth_back(&mut self, n: usize) -> Option<A> {
} }
} }
#[unstable(feature = "iter_repeat_n", issue = "104434")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A: Clone> FusedIterator for RepeatN<A> {} impl<A: Clone> FusedIterator for RepeatN<A> {}
#[unstable(feature = "trusted_len", issue = "37572")] #[unstable(feature = "trusted_len", issue = "37572")]
unsafe impl<A: Clone> TrustedLen for RepeatN<A> {} unsafe impl<A: Clone> TrustedLen for RepeatN<A> {}
#[unstable(feature = "trusted_len_next_unchecked", issue = "37572")] #[stable(feature = "iter_repeat_n", since = "CURRENT_RUSTC_VERSION")]
impl<A: Clone> UncheckedIterator for RepeatN<A> { impl<A: Clone> UncheckedIterator for RepeatN<A> {
#[inline] #[inline]
unsafe fn next_unchecked(&mut self) -> Self::Item { unsafe fn next_unchecked(&mut self) -> Self::Item {

1
library/core/tests/lib.rs
View File

@ -73,7 +73,6 @@
#![feature(iter_next_chunk)] #![feature(iter_next_chunk)]
#![feature(iter_order_by)] #![feature(iter_order_by)]
#![feature(iter_partition_in_place)] #![feature(iter_partition_in_place)]
#![feature(iter_repeat_n)]
#![feature(iterator_try_collect)] #![feature(iterator_try_collect)]
#![feature(iterator_try_reduce)] #![feature(iterator_try_reduce)]
#![feature(layout_for_ptr)] #![feature(layout_for_ptr)]