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Track caller of slice split and swap #91961

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Merged
merged 1 commit into from
Jan 2, 2022
Merged

Track caller of slice split and swap #91961

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5 changes: 5 additions & 0 deletions library/core/src/slice/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -583,6 +583,7 @@ impl<T> [T] {
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_swap", issue = "83163")]
#[inline]
#[track_caller]
pub const fn swap(&mut self, a: usize, b: usize) {
let _ = &self[a];
let _ = &self[b];
Expand Down Expand Up @@ -1499,6 +1500,7 @@ impl<T> [T] {
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
#[track_caller]
pub fn split_at(&self, mid: usize) -> (&[T], &[T]) {
assert!(mid <= self.len());
// SAFETY: `[ptr; mid]` and `[mid; len]` are inside `self`, which
Expand Down Expand Up @@ -1529,6 +1531,7 @@ impl<T> [T] {
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
#[track_caller]
pub fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
assert!(mid <= self.len());
// SAFETY: `[ptr; mid]` and `[mid; len]` are inside `self`, which
Expand Down Expand Up @@ -1668,6 +1671,7 @@ impl<T> [T] {
/// ```
#[unstable(feature = "split_array", reason = "new API", issue = "90091")]
#[inline]
#[track_caller]
pub fn split_array_ref<const N: usize>(&self) -> (&[T; N], &[T]) {
let (a, b) = self.split_at(N);
// SAFETY: a points to [T; N]? Yes it's [T] of length N (checked by split_at)
Expand Down Expand Up @@ -1699,6 +1703,7 @@ impl<T> [T] {
/// ```
#[unstable(feature = "split_array", reason = "new API", issue = "90091")]
#[inline]
#[track_caller]
pub fn split_array_mut<const N: usize>(&mut self) -> (&mut [T; N], &mut [T]) {
let (a, b) = self.split_at_mut(N);
// SAFETY: a points to [T; N]? Yes it's [T] of length N (checked by split_at_mut)
Expand Down