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sync: add ?Sized bound to {MutexGuard,OwnedMutexGuard}::map (#5997)

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Alexandre Bléron
2023-09-10 20:08:12 +02:00
committed by GitHub
parent 65027b60bc
commit 61f095fdc1
1 changed files with 4 additions and 0 deletions
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tokio/src/sync/mutex.rs
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@@ -846,6 +846,7 @@ impl<'a, T: ?Sized> MutexGuard<'a, T> {
#[inline] #[inline]
pub fn map<U, F>(mut this: Self, f: F) -> MappedMutexGuard<'a, U> pub fn map<U, F>(mut this: Self, f: F) -> MappedMutexGuard<'a, U>
where where
U: ?Sized,
F: FnOnce(&mut T) -> &mut U, F: FnOnce(&mut T) -> &mut U,
{ {
let data = f(&mut *this) as *mut U; let data = f(&mut *this) as *mut U;
@@ -894,6 +895,7 @@ impl<'a, T: ?Sized> MutexGuard<'a, T> {
#[inline] #[inline]
pub fn try_map<U, F>(mut this: Self, f: F) -> Result<MappedMutexGuard<'a, U>, Self> pub fn try_map<U, F>(mut this: Self, f: F) -> Result<MappedMutexGuard<'a, U>, Self>
where where
U: ?Sized,
F: FnOnce(&mut T) -> Option<&mut U>, F: FnOnce(&mut T) -> Option<&mut U>,
{ {
let data = match f(&mut *this) { let data = match f(&mut *this) {
@@ -1026,6 +1028,7 @@ impl<T: ?Sized> OwnedMutexGuard<T> {
#[inline] #[inline]
pub fn map<U, F>(mut this: Self, f: F) -> OwnedMappedMutexGuard<T, U> pub fn map<U, F>(mut this: Self, f: F) -> OwnedMappedMutexGuard<T, U>
where where
U: ?Sized,
F: FnOnce(&mut T) -> &mut U, F: FnOnce(&mut T) -> &mut U,
{ {
let data = f(&mut *this) as *mut U; let data = f(&mut *this) as *mut U;
@@ -1074,6 +1077,7 @@ impl<T: ?Sized> OwnedMutexGuard<T> {
#[inline] #[inline]
pub fn try_map<U, F>(mut this: Self, f: F) -> Result<OwnedMappedMutexGuard<T, U>, Self> pub fn try_map<U, F>(mut this: Self, f: F) -> Result<OwnedMappedMutexGuard<T, U>, Self>
where where
U: ?Sized,
F: FnOnce(&mut T) -> Option<&mut U>, F: FnOnce(&mut T) -> Option<&mut U>,
{ {
let data = match f(&mut *this) { let data = match f(&mut *this) {