diff options
Diffstat (limited to 'library/core/src/cell/lazy.rs')
| -rw-r--r-- | library/core/src/cell/lazy.rs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/library/core/src/cell/lazy.rs b/library/core/src/cell/lazy.rs index b355d94ce..65d12c25c 100644 --- a/library/core/src/cell/lazy.rs +++ b/library/core/src/cell/lazy.rs @@ -35,7 +35,7 @@ pub struct LazyCell<T, F = fn() -> T> { init: Cell<Option<F>>, } -impl<T, F> LazyCell<T, F> { +impl<T, F: FnOnce() -> T> LazyCell<T, F> { /// Creates a new lazy value with the given initializing function. /// /// # Examples @@ -51,13 +51,12 @@ impl<T, F> LazyCell<T, F> { /// /// assert_eq!(&*lazy, "HELLO, WORLD!"); /// ``` + #[inline] #[unstable(feature = "once_cell", issue = "74465")] pub const fn new(init: F) -> LazyCell<T, F> { LazyCell { cell: OnceCell::new(), init: Cell::new(Some(init)) } } -} -impl<T, F: FnOnce() -> T> LazyCell<T, F> { /// Forces the evaluation of this lazy value and returns a reference to /// the result. /// @@ -75,6 +74,7 @@ impl<T, F: FnOnce() -> T> LazyCell<T, F> { /// assert_eq!(LazyCell::force(&lazy), &92); /// assert_eq!(&*lazy, &92); /// ``` + #[inline] #[unstable(feature = "once_cell", issue = "74465")] pub fn force(this: &LazyCell<T, F>) -> &T { this.cell.get_or_init(|| match this.init.take() { @@ -87,6 +87,7 @@ impl<T, F: FnOnce() -> T> LazyCell<T, F> { #[unstable(feature = "once_cell", issue = "74465")] impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F> { type Target = T; + #[inline] fn deref(&self) -> &T { LazyCell::force(self) } @@ -95,6 +96,7 @@ impl<T, F: FnOnce() -> T> Deref for LazyCell<T, F> { #[unstable(feature = "once_cell", issue = "74465")] impl<T: Default> Default for LazyCell<T> { /// Creates a new lazy value using `Default` as the initializing function. + #[inline] fn default() -> LazyCell<T> { LazyCell::new(T::default) } |