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-rw-r--r--library/alloc/src/collections/btree/map.rs41
-rw-r--r--library/alloc/src/collections/btree/map/entry.rs1
-rw-r--r--library/alloc/src/collections/btree/node.rs6
-rw-r--r--library/alloc/src/collections/btree/set.rs26
-rw-r--r--library/alloc/src/collections/linked_list.rs2
-rw-r--r--library/alloc/src/collections/mod.rs1
-rw-r--r--library/alloc/src/collections/vec_deque/mod.rs14
7 files changed, 52 insertions, 39 deletions
diff --git a/library/alloc/src/collections/btree/map.rs b/library/alloc/src/collections/btree/map.rs
index cacbd54b6..8a7719347 100644
--- a/library/alloc/src/collections/btree/map.rs
+++ b/library/alloc/src/collections/btree/map.rs
@@ -580,7 +580,7 @@ impl<K, V> BTreeMap<K, V> {
/// map.insert(1, "a");
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_stable(feature = "const_btree_new", since = "1.66.0")]
#[must_use]
pub const fn new() -> BTreeMap<K, V> {
BTreeMap { root: None, length: 0, alloc: ManuallyDrop::new(Global), _marker: PhantomData }
@@ -703,7 +703,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// Basic usage:
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -712,7 +711,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// map.insert(2, "a");
/// assert_eq!(map.first_key_value(), Some((&1, &"b")));
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn first_key_value(&self) -> Option<(&K, &V)>
where
K: Ord,
@@ -727,7 +726,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// # Examples
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -741,7 +739,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// assert_eq!(*map.get(&1).unwrap(), "first");
/// assert_eq!(*map.get(&2).unwrap(), "b");
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn first_entry(&mut self) -> Option<OccupiedEntry<'_, K, V, A>>
where
K: Ord,
@@ -765,7 +763,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// Draining elements in ascending order, while keeping a usable map each iteration.
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -776,7 +773,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// }
/// assert!(map.is_empty());
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn pop_first(&mut self) -> Option<(K, V)>
where
K: Ord,
@@ -792,7 +789,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// Basic usage:
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -800,7 +796,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// map.insert(2, "a");
/// assert_eq!(map.last_key_value(), Some((&2, &"a")));
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn last_key_value(&self) -> Option<(&K, &V)>
where
K: Ord,
@@ -815,7 +811,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// # Examples
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -829,7 +824,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// assert_eq!(*map.get(&1).unwrap(), "a");
/// assert_eq!(*map.get(&2).unwrap(), "last");
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn last_entry(&mut self) -> Option<OccupiedEntry<'_, K, V, A>>
where
K: Ord,
@@ -853,7 +848,6 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// Draining elements in descending order, while keeping a usable map each iteration.
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeMap;
///
/// let mut map = BTreeMap::new();
@@ -864,7 +858,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// }
/// assert!(map.is_empty());
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn pop_last(&mut self) -> Option<(K, V)>
where
K: Ord,
@@ -1099,6 +1093,9 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// Moves all elements from `other` into `self`, leaving `other` empty.
///
+ /// If a key from `other` is already present in `self`, the respective
+ /// value from `self` will be overwritten with the respective value from `other`.
+ ///
/// # Examples
///
/// ```
@@ -1107,10 +1104,10 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// let mut a = BTreeMap::new();
/// a.insert(1, "a");
/// a.insert(2, "b");
- /// a.insert(3, "c");
+ /// a.insert(3, "c"); // Note: Key (3) also present in b.
///
/// let mut b = BTreeMap::new();
- /// b.insert(3, "d");
+ /// b.insert(3, "d"); // Note: Key (3) also present in a.
/// b.insert(4, "e");
/// b.insert(5, "f");
///
@@ -1121,7 +1118,7 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
///
/// assert_eq!(a[&1], "a");
/// assert_eq!(a[&2], "b");
- /// assert_eq!(a[&3], "d");
+ /// assert_eq!(a[&3], "d"); // Note: "c" has been overwritten.
/// assert_eq!(a[&4], "e");
/// assert_eq!(a[&5], "f");
/// ```
@@ -2392,7 +2389,11 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_unstable(
+ feature = "const_btree_len",
+ issue = "71835",
+ implied_by = "const_btree_new"
+ )]
pub const fn len(&self) -> usize {
self.length
}
@@ -2413,7 +2414,11 @@ impl<K, V, A: Allocator + Clone> BTreeMap<K, V, A> {
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_unstable(
+ feature = "const_btree_len",
+ issue = "71835",
+ implied_by = "const_btree_new"
+ )]
pub const fn is_empty(&self) -> bool {
self.len() == 0
}
diff --git a/library/alloc/src/collections/btree/map/entry.rs b/library/alloc/src/collections/btree/map/entry.rs
index cd7cdc192..370b58864 100644
--- a/library/alloc/src/collections/btree/map/entry.rs
+++ b/library/alloc/src/collections/btree/map/entry.rs
@@ -133,7 +133,6 @@ impl<'a, K: Debug + Ord, V: Debug, A: Allocator + Clone> fmt::Display
}
}
-#[cfg(not(bootstrap))]
#[unstable(feature = "map_try_insert", issue = "82766")]
impl<'a, K: core::fmt::Debug + Ord, V: core::fmt::Debug> core::error::Error
for crate::collections::btree_map::OccupiedError<'a, K, V>
diff --git a/library/alloc/src/collections/btree/node.rs b/library/alloc/src/collections/btree/node.rs
index f1d2d3b30..da766b67a 100644
--- a/library/alloc/src/collections/btree/node.rs
+++ b/library/alloc/src/collections/btree/node.rs
@@ -206,9 +206,9 @@ impl<'a, K: 'a, V: 'a, Type> Clone for NodeRef<marker::Immut<'a>, K, V, Type> {
unsafe impl<BorrowType, K: Sync, V: Sync, Type> Sync for NodeRef<BorrowType, K, V, Type> {}
-unsafe impl<'a, K: Sync + 'a, V: Sync + 'a, Type> Send for NodeRef<marker::Immut<'a>, K, V, Type> {}
-unsafe impl<'a, K: Send + 'a, V: Send + 'a, Type> Send for NodeRef<marker::Mut<'a>, K, V, Type> {}
-unsafe impl<'a, K: Send + 'a, V: Send + 'a, Type> Send for NodeRef<marker::ValMut<'a>, K, V, Type> {}
+unsafe impl<K: Sync, V: Sync, Type> Send for NodeRef<marker::Immut<'_>, K, V, Type> {}
+unsafe impl<K: Send, V: Send, Type> Send for NodeRef<marker::Mut<'_>, K, V, Type> {}
+unsafe impl<K: Send, V: Send, Type> Send for NodeRef<marker::ValMut<'_>, K, V, Type> {}
unsafe impl<K: Send, V: Send, Type> Send for NodeRef<marker::Owned, K, V, Type> {}
unsafe impl<K: Send, V: Send, Type> Send for NodeRef<marker::Dying, K, V, Type> {}
diff --git a/library/alloc/src/collections/btree/set.rs b/library/alloc/src/collections/btree/set.rs
index 2cfc08074..4ddb21192 100644
--- a/library/alloc/src/collections/btree/set.rs
+++ b/library/alloc/src/collections/btree/set.rs
@@ -343,7 +343,7 @@ impl<T> BTreeSet<T> {
/// let mut set: BTreeSet<i32> = BTreeSet::new();
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_stable(feature = "const_btree_new", since = "1.66.0")]
#[must_use]
pub const fn new() -> BTreeSet<T> {
BTreeSet { map: BTreeMap::new() }
@@ -786,7 +786,6 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// Basic usage:
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeSet;
///
/// let mut set = BTreeSet::new();
@@ -797,7 +796,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// assert_eq!(set.first(), Some(&1));
/// ```
#[must_use]
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn first(&self) -> Option<&T>
where
T: Ord,
@@ -813,7 +812,6 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// Basic usage:
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeSet;
///
/// let mut set = BTreeSet::new();
@@ -824,7 +822,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// assert_eq!(set.last(), Some(&2));
/// ```
#[must_use]
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn last(&self) -> Option<&T>
where
T: Ord,
@@ -838,7 +836,6 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// # Examples
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeSet;
///
/// let mut set = BTreeSet::new();
@@ -849,7 +846,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// }
/// assert!(set.is_empty());
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn pop_first(&mut self) -> Option<T>
where
T: Ord,
@@ -863,7 +860,6 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// # Examples
///
/// ```
- /// #![feature(map_first_last)]
/// use std::collections::BTreeSet;
///
/// let mut set = BTreeSet::new();
@@ -874,7 +870,7 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// }
/// assert!(set.is_empty());
/// ```
- #[unstable(feature = "map_first_last", issue = "62924")]
+ #[stable(feature = "map_first_last", since = "1.66.0")]
pub fn pop_last(&mut self) -> Option<T>
where
T: Ord,
@@ -1174,7 +1170,11 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_unstable(
+ feature = "const_btree_len",
+ issue = "71835",
+ implied_by = "const_btree_new"
+ )]
pub const fn len(&self) -> usize {
self.map.len()
}
@@ -1193,7 +1193,11 @@ impl<T, A: Allocator + Clone> BTreeSet<T, A> {
/// ```
#[must_use]
#[stable(feature = "rust1", since = "1.0.0")]
- #[rustc_const_unstable(feature = "const_btree_new", issue = "71835")]
+ #[rustc_const_unstable(
+ feature = "const_btree_len",
+ issue = "71835",
+ implied_by = "const_btree_new"
+ )]
pub const fn is_empty(&self) -> bool {
self.len() == 0
}
diff --git a/library/alloc/src/collections/linked_list.rs b/library/alloc/src/collections/linked_list.rs
index 6480fcaf9..f2f5dffc2 100644
--- a/library/alloc/src/collections/linked_list.rs
+++ b/library/alloc/src/collections/linked_list.rs
@@ -1613,7 +1613,7 @@ impl<'a, T> CursorMut<'a, T> {
None
} else {
// We can't point to the node that we pop. Copying the behavior of
- // `remove_current`, we move on the the next node in the sequence.
+ // `remove_current`, we move on to the next node in the sequence.
// If the list is of length 1 then we end pointing to the "ghost"
// node at index 0, which is expected.
if self.list.head == self.current {
diff --git a/library/alloc/src/collections/mod.rs b/library/alloc/src/collections/mod.rs
index 21d0def08..161a37573 100644
--- a/library/alloc/src/collections/mod.rs
+++ b/library/alloc/src/collections/mod.rs
@@ -153,6 +153,5 @@ trait SpecExtend<I: IntoIterator> {
fn spec_extend(&mut self, iter: I);
}
-#[cfg(not(bootstrap))]
#[stable(feature = "try_reserve", since = "1.57.0")]
impl core::error::Error for TryReserveError {}
diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs
index e3f4deb08..2a57dad89 100644
--- a/library/alloc/src/collections/vec_deque/mod.rs
+++ b/library/alloc/src/collections/vec_deque/mod.rs
@@ -12,11 +12,17 @@ use core::fmt;
use core::hash::{Hash, Hasher};
use core::iter::{repeat_with, FromIterator};
use core::marker::PhantomData;
-use core::mem::{self, ManuallyDrop, MaybeUninit};
+use core::mem::{ManuallyDrop, MaybeUninit, SizedTypeProperties};
use core::ops::{Index, IndexMut, Range, RangeBounds};
use core::ptr::{self, NonNull};
use core::slice;
+// This is used in a bunch of intra-doc links.
+// FIXME: For some reason, `#[cfg(doc)]` wasn't sufficient, resulting in
+// failures in linkchecker even though rustdoc built the docs just fine.
+#[allow(unused_imports)]
+use core::mem;
+
use crate::alloc::{Allocator, Global};
use crate::collections::TryReserveError;
use crate::collections::TryReserveErrorKind;
@@ -177,7 +183,7 @@ impl<T, A: Allocator> VecDeque<T, A> {
/// Marginally more convenient
#[inline]
fn cap(&self) -> usize {
- if mem::size_of::<T>() == 0 {
+ if T::IS_ZST {
// For zero sized types, we are always at maximum capacity
MAXIMUM_ZST_CAPACITY
} else {
@@ -3038,7 +3044,7 @@ impl<T, A: Allocator> From<Vec<T, A>> for VecDeque<T, A> {
/// `Vec<T>` came from `From<VecDeque<T>>` and hasn't been reallocated.
fn from(mut other: Vec<T, A>) -> Self {
let len = other.len();
- if mem::size_of::<T>() == 0 {
+ if T::IS_ZST {
// There's no actual allocation for ZSTs to worry about capacity,
// but `VecDeque` can't handle as much length as `Vec`.
assert!(len < MAXIMUM_ZST_CAPACITY, "capacity overflow");
@@ -3124,7 +3130,7 @@ impl<T, const N: usize> From<[T; N]> for VecDeque<T> {
fn from(arr: [T; N]) -> Self {
let mut deq = VecDeque::with_capacity(N);
let arr = ManuallyDrop::new(arr);
- if mem::size_of::<T>() != 0 {
+ if !<T>::IS_ZST {
// SAFETY: VecDeque::with_capacity ensures that there is enough capacity.
unsafe {
ptr::copy_nonoverlapping(arr.as_ptr(), deq.ptr(), N);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 02:04:45 +0000