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| author | Ashley Mannix <ashleymannix@live.com.au> | 2020-07-18 10:09:47 +1000 |
|---|---|---|
| committer | Ashley Mannix <ashleymannix@live.com.au> | 2020-07-18 10:12:02 +1000 |
| commit | fe639057086fa7bef1e964bf3a211517b04bc328 (patch) | |
| tree | d9bc7611cd9c20903b258588d755b2057a2a8a5f /src/libstd | |
| parent | 48844fed2bdc7c40d213131d5e13ab28e47df083 (diff) | |
| download | rust-fe639057086fa7bef1e964bf3a211517b04bc328.tar.gz rust-fe639057086fa7bef1e964bf3a211517b04bc328.zip | |
link once_cell feature to #74465
Diffstat (limited to 'src/libstd')
| -rw-r--r-- | src/libstd/lazy.rs | 56 | ||||
| -rw-r--r-- | src/libstd/lib.rs | 2 |
2 files changed, 29 insertions, 29 deletions
diff --git a/src/libstd/lazy.rs b/src/libstd/lazy.rs index 094eff17f89..86e1cfae582 100644 --- a/src/libstd/lazy.rs +++ b/src/libstd/lazy.rs @@ -10,7 +10,7 @@ use crate::{ }; #[doc(inline)] -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] pub use core::lazy::*; /// A synchronization primitive which can be written to only once. @@ -38,7 +38,7 @@ pub use core::lazy::*; /// assert!(value.is_some()); /// assert_eq!(value.unwrap().as_str(), "Hello, World!"); /// ``` -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] pub struct SyncOnceCell<T> { once: Once, // Whether or not the value is initialized is tracked by `state_and_queue`. @@ -50,24 +50,24 @@ pub struct SyncOnceCell<T> { // scoped thread B, which fills the cell, which is // then destroyed by A. That is, destructor observes // a sent value. -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] unsafe impl<T: Sync + Send> Sync for SyncOnceCell<T> {} -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] unsafe impl<T: Send> Send for SyncOnceCell<T> {} -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: RefUnwindSafe + UnwindSafe> RefUnwindSafe for SyncOnceCell<T> {} -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: UnwindSafe> UnwindSafe for SyncOnceCell<T> {} -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T> Default for SyncOnceCell<T> { fn default() -> SyncOnceCell<T> { SyncOnceCell::new() } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: fmt::Debug> fmt::Debug for SyncOnceCell<T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self.get() { @@ -77,7 +77,7 @@ impl<T: fmt::Debug> fmt::Debug for SyncOnceCell<T> { } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: Clone> Clone for SyncOnceCell<T> { fn clone(&self) -> SyncOnceCell<T> { let cell = Self::new(); @@ -91,7 +91,7 @@ impl<T: Clone> Clone for SyncOnceCell<T> { } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T> From<T> for SyncOnceCell<T> { fn from(value: T) -> Self { let cell = Self::new(); @@ -102,19 +102,19 @@ impl<T> From<T> for SyncOnceCell<T> { } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: PartialEq> PartialEq for SyncOnceCell<T> { fn eq(&self, other: &SyncOnceCell<T>) -> bool { self.get() == other.get() } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: Eq> Eq for SyncOnceCell<T> {} impl<T> SyncOnceCell<T> { /// Creates a new empty cell. - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub const fn new() -> SyncOnceCell<T> { SyncOnceCell { once: Once::new(), value: UnsafeCell::new(MaybeUninit::uninit()) } } @@ -123,7 +123,7 @@ impl<T> SyncOnceCell<T> { /// /// Returns `None` if the cell is empty, or being initialized. This /// method never blocks. - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn get(&self) -> Option<&T> { if self.is_initialized() { // Safe b/c checked is_initialized @@ -136,7 +136,7 @@ impl<T> SyncOnceCell<T> { /// Gets the mutable reference to the underlying value. /// /// Returns `None` if the cell is empty. This method never blocks. - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn get_mut(&mut self) -> Option<&mut T> { if self.is_initialized() { // Safe b/c checked is_initialized and we have a unique access @@ -170,7 +170,7 @@ impl<T> SyncOnceCell<T> { /// assert_eq!(CELL.get(), Some(&92)); /// } /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn set(&self, value: T) -> Result<(), T> { let mut value = Some(value); self.get_or_init(|| value.take().unwrap()); @@ -209,7 +209,7 @@ impl<T> SyncOnceCell<T> { /// let value = cell.get_or_init(|| unreachable!()); /// assert_eq!(value, &92); /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn get_or_init<F>(&self, f: F) -> &T where F: FnOnce() -> T, @@ -248,7 +248,7 @@ impl<T> SyncOnceCell<T> { /// assert_eq!(value, Ok(&92)); /// assert_eq!(cell.get(), Some(&92)) /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn get_or_try_init<F, E>(&self, f: F) -> Result<&T, E> where F: FnOnce() -> Result<T, E>, @@ -286,7 +286,7 @@ impl<T> SyncOnceCell<T> { /// cell.set("hello".to_string()).unwrap(); /// assert_eq!(cell.into_inner(), Some("hello".to_string())); /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn into_inner(mut self) -> Option<T> { // Safety: Safe because we immediately free `self` without dropping let inner = unsafe { self.take_inner() }; @@ -318,7 +318,7 @@ impl<T> SyncOnceCell<T> { /// assert_eq!(cell.take(), Some("hello".to_string())); /// assert_eq!(cell.get(), None); /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn take(&mut self) -> Option<T> { mem::take(self).into_inner() } @@ -428,13 +428,13 @@ impl<T> Drop for SyncOnceCell<T> { /// // Some("Hoyten") /// } /// ``` -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] pub struct SyncLazy<T, F = fn() -> T> { cell: SyncOnceCell<T>, init: Cell<Option<F>>, } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: fmt::Debug, F> fmt::Debug for SyncLazy<T, F> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_struct("Lazy").field("cell", &self.cell).field("init", &"..").finish() @@ -446,17 +446,17 @@ impl<T: fmt::Debug, F> fmt::Debug for SyncLazy<T, F> { // we do create a `&mut Option<F>` in `force`, but this is // properly synchronized, so it only happens once // so it also does not contribute to this impl. -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] unsafe impl<T, F: Send> Sync for SyncLazy<T, F> where SyncOnceCell<T>: Sync {} // auto-derived `Send` impl is OK. -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T, F: RefUnwindSafe> RefUnwindSafe for SyncLazy<T, F> where SyncOnceCell<T>: RefUnwindSafe {} impl<T, F> SyncLazy<T, F> { /// Creates a new lazy value with the given initializing /// function. - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub const fn new(f: F) -> SyncLazy<T, F> { SyncLazy { cell: SyncOnceCell::new(), init: Cell::new(Some(f)) } } @@ -479,7 +479,7 @@ impl<T, F: FnOnce() -> T> SyncLazy<T, F> { /// assert_eq!(SyncLazy::force(&lazy), &92); /// assert_eq!(&*lazy, &92); /// ``` - #[unstable(feature = "once_cell", issue = "68198")] + #[unstable(feature = "once_cell", issue = "74465")] pub fn force(this: &SyncLazy<T, F>) -> &T { this.cell.get_or_init(|| match this.init.take() { Some(f) => f(), @@ -488,7 +488,7 @@ impl<T, F: FnOnce() -> T> SyncLazy<T, F> { } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T, F: FnOnce() -> T> Deref for SyncLazy<T, F> { type Target = T; fn deref(&self) -> &T { @@ -496,7 +496,7 @@ impl<T, F: FnOnce() -> T> Deref for SyncLazy<T, F> { } } -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] impl<T: Default> Default for SyncLazy<T> { /// Creates a new lazy value using `Default` as the initializing function. fn default() -> SyncLazy<T> { diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs index 8178719ccc4..cf9cc4ebc7b 100644 --- a/src/libstd/lib.rs +++ b/src/libstd/lib.rs @@ -478,7 +478,7 @@ pub mod process; pub mod sync; pub mod time; -#[unstable(feature = "once_cell", issue = "68198")] +#[unstable(feature = "once_cell", issue = "74465")] pub mod lazy; #[stable(feature = "futures_api", since = "1.36.0")] |
