impl<T, F: FnOnce() -> T> LazyLock<T, F> {
/// Creates a new lazy value with the given initializing
/// function.
+ #[inline]
#[unstable(feature = "once_cell", issue = "74465")]
pub const fn new(f: F) -> LazyLock<T, F> {
LazyLock { cell: OnceLock::new(), init: Cell::new(Some(f)) }
/// assert_eq!(LazyLock::force(&lazy), &92);
/// assert_eq!(&*lazy, &92);
/// ```
+ #[inline]
#[unstable(feature = "once_cell", issue = "74465")]
pub fn force(this: &LazyLock<T, F>) -> &T {
this.cell.get_or_init(|| match this.init.take() {
#[unstable(feature = "once_cell", issue = "74465")]
impl<T, F: FnOnce() -> T> Deref for LazyLock<T, F> {
type Target = T;
+
+ #[inline]
fn deref(&self) -> &T {
LazyLock::force(self)
}
#[unstable(feature = "once_cell", issue = "74465")]
impl<T: Default> Default for LazyLock<T> {
/// Creates a new lazy value using `Default` as the initializing function.
+ #[inline]
fn default() -> LazyLock<T> {
LazyLock::new(T::default)
}