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stabilize extract_if

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bendn
2025-02-16 12:38:11 +07:00
parent 1805b33483
commit c39f33baae
11 changed files with 9 additions and 22 deletions
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8
library/alloc/src/vec/extract_if.rs
View File

@@ -12,12 +12,10 @@ use crate::alloc::{Allocator, Global};
/// # Example
///
/// ```
/// #![feature(extract_if)]
///
/// let mut v = vec![0, 1, 2];
/// let iter: std::vec::ExtractIf<'_, _, _> = v.extract_if(.., |x| *x % 2 == 0);
/// ```
#[unstable(feature = "extract_if", reason = "recently added", issue = "43244")]
#[stable(feature = "extract_if", since = "CURRENT_RUSTC_VERSION")]
#[derive(Debug)]
#[must_use = "iterators are lazy and do nothing unless consumed"]
pub struct ExtractIf<
@@ -59,7 +57,7 @@ impl<'a, T, F, A: Allocator> ExtractIf<'a, T, F, A> {
}
}
#[unstable(feature = "extract_if", reason = "recently added", issue = "43244")]
#[stable(feature = "extract_if", since = "CURRENT_RUSTC_VERSION")]
impl<T, F, A: Allocator> Iterator for ExtractIf<'_, T, F, A>
where
F: FnMut(&mut T) -> bool,
@@ -95,7 +93,7 @@ where
}
}
#[unstable(feature = "extract_if", reason = "recently added", issue = "43244")]
#[stable(feature = "extract_if", since = "CURRENT_RUSTC_VERSION")]
impl<T, F, A: Allocator> Drop for ExtractIf<'_, T, F, A> {
fn drop(&mut self) {
unsafe {

6
library/alloc/src/vec/mod.rs
View File

@@ -66,7 +66,7 @@ use core::ptr::{self, NonNull};
use core::slice::{self, SliceIndex};
use core::{fmt, intrinsics};
#[unstable(feature = "extract_if", reason = "recently added", issue = "43244")]
#[stable(feature = "extract_if", since = "CURRENT_RUSTC_VERSION")]
pub use self::extract_if::ExtractIf;
use crate::alloc::{Allocator, Global};
use crate::borrow::{Cow, ToOwned};
@@ -3684,7 +3684,6 @@ impl<T, A: Allocator> Vec<T, A> {
/// Splitting an array into evens and odds, reusing the original allocation:
///
/// ```
/// #![feature(extract_if)]
/// let mut numbers = vec![1, 2, 3, 4, 5, 6, 8, 9, 11, 13, 14, 15];
///
/// let evens = numbers.extract_if(.., |x| *x % 2 == 0).collect::<Vec<_>>();
@@ -3697,13 +3696,12 @@ impl<T, A: Allocator> Vec<T, A> {
/// Using the range argument to only process a part of the vector:
///
/// ```
/// #![feature(extract_if)]
/// let mut items = vec![0, 0, 0, 0, 0, 0, 0, 1, 2, 1, 2, 1, 2];
/// let ones = items.extract_if(7.., |x| *x == 1).collect::<Vec<_>>();
/// assert_eq!(items, vec![0, 0, 0, 0, 0, 0, 0, 2, 2, 2]);
/// assert_eq!(ones.len(), 3);
/// ```
#[unstable(feature = "extract_if", reason = "recently added", issue = "43244")]
#[stable(feature = "extract_if", since = "CURRENT_RUSTC_VERSION")]
pub fn extract_if<F, R>(&mut self, range: R, filter: F) -> ExtractIf<'_, T, F, A>
where
F: FnMut(&mut T) -> bool,