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Rollup merge of #145992 - GrigorenkoPV:stabilize/vec_deque_pop_if, r=Amanieu

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Stabilize `vec_deque_pop_if`

Tracking issue: rust-lang/rust#135889
Closes rust-lang/rust#135889
Also fixes a typo mentioned in https://github.com/rust-lang/rust/issues/135889#issuecomment-2991213248

FCP: https://github.com/rust-lang/rust/issues/135889#issuecomment-3238777731

`@rustbot` label -T-libs +T-libs-api +needs-fcp +S-waiting-on-fcp

r? t-libs-api
This commit is contained in:
Jacob Pratt 2025-11-07 00:21:17 -05:00 • committed by GitHub
commit 47eeb00a63
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2 changed files with 4 additions and 7 deletions
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10
library/alloc/src/collections/vec_deque/mod.rs
View file

@ -2041,7 +2041,6 @@ impl<T, A: Allocator> VecDeque<T, A> {
/// # Examples
///
/// ```
/// #![feature(vec_deque_pop_if)]
/// use std::collections::VecDeque;
///
/// let mut deque: VecDeque<i32> = vec![0, 1, 2, 3, 4].into();
@ -2051,7 +2050,7 @@ impl<T, A: Allocator> VecDeque<T, A> {
/// assert_eq!(deque, [1, 2, 3, 4]);
/// assert_eq!(deque.pop_front_if(pred), None);
/// ```
#[unstable(feature = "vec_deque_pop_if", issue = "135889")]
#[stable(feature = "vec_deque_pop_if", since = "CURRENT_RUSTC_VERSION")]
pub fn pop_front_if(&mut self, predicate: impl FnOnce(&mut T) -> bool) -> Option<T> {
let first = self.front_mut()?;
if predicate(first) { self.pop_front() } else { None }
@ -2064,7 +2063,6 @@ impl<T, A: Allocator> VecDeque<T, A> {
/// # Examples
///
/// ```
/// #![feature(vec_deque_pop_if)]
/// use std::collections::VecDeque;
///
/// let mut deque: VecDeque<i32> = vec![0, 1, 2, 3, 4].into();
@ -2074,10 +2072,10 @@ impl<T, A: Allocator> VecDeque<T, A> {
/// assert_eq!(deque, [0, 1, 2, 3]);
/// assert_eq!(deque.pop_back_if(pred), None);
/// ```
#[unstable(feature = "vec_deque_pop_if", issue = "135889")]
#[stable(feature = "vec_deque_pop_if", since = "CURRENT_RUSTC_VERSION")]
pub fn pop_back_if(&mut self, predicate: impl FnOnce(&mut T) -> bool) -> Option<T> {
let first = self.back_mut()?;
if predicate(first) { self.pop_back() } else { None }
let last = self.back_mut()?;
if predicate(last) { self.pop_back() } else { None }
}
/// Prepends an element to the deque.

1
library/alloctests/tests/lib.rs
View file

@ -38,7 +38,6 @@
#![feature(str_as_str)]
#![feature(strict_provenance_lints)]
#![feature(string_replace_in_place)]
#![feature(vec_deque_pop_if)]
#![feature(vec_deque_truncate_front)]
#![feature(unique_rc_arc)]
#![feature(macro_metavar_expr_concat)]