1 files changed, 0 insertions, 88 deletions
diff --git a/vendor/crossbeam-utils/src/sync/once_lock.rs b/vendor/crossbeam-utils/src/sync/once_lock.rs
deleted file mode 100644
index e057aca..0000000
--- a/vendor/crossbeam-utils/src/sync/once_lock.rs
+++ /dev/null
@@ -1,88 +0,0 @@
-// Based on unstable std::sync::OnceLock.
-//
-// Source: https://github.com/rust-lang/rust/blob/8e9c93df464b7ada3fc7a1c8ccddd9dcb24ee0a0/library/std/src/sync/once_lock.rs
-
-use core::cell::UnsafeCell;
-use core::mem::MaybeUninit;
-use std::sync::Once;
-
-pub(crate) struct OnceLock<T> {
-    once: Once,
-    value: UnsafeCell<MaybeUninit<T>>,
-    // Unlike std::sync::OnceLock, we don't need PhantomData here because
-    // we don't use #[may_dangle].
-}
-
-unsafe impl<T: Sync + Send> Sync for OnceLock<T> {}
-unsafe impl<T: Send> Send for OnceLock<T> {}
-
-impl<T> OnceLock<T> {
-    /// Creates a new empty cell.
-    #[must_use]
-    pub(crate) const fn new() -> Self {
-        Self {
-            once: Once::new(),
-            value: UnsafeCell::new(MaybeUninit::uninit()),
-        }
-    }
-
-    /// Gets the contents of the cell, initializing it with `f` if the cell
-    /// was empty.
-    ///
-    /// Many threads may call `get_or_init` concurrently with different
-    /// initializing functions, but it is guaranteed that only one function
-    /// will be executed.
-    ///
-    /// # Panics
-    ///
-    /// If `f` panics, the panic is propagated to the caller, and the cell
-    /// remains uninitialized.
-    ///
-    /// It is an error to reentrantly initialize the cell from `f`. The
-    /// exact outcome is unspecified. Current implementation deadlocks, but
-    /// this may be changed to a panic in the future.
-    pub(crate) fn get_or_init<F>(&self, f: F) -> &T
-    where
-        F: FnOnce() -> T,
-    {
-        // Fast path check
-        if self.once.is_completed() {
-            // SAFETY: The inner value has been initialized
-            return unsafe { self.get_unchecked() };
-        }
-        self.initialize(f);
-
-        // SAFETY: The inner value has been initialized
-        unsafe { self.get_unchecked() }
-    }
-
-    #[cold]
-    fn initialize<F>(&self, f: F)
-    where
-        F: FnOnce() -> T,
-    {
-        let slot = self.value.get();
-
-        self.once.call_once(|| {
-            let value = f();
-            unsafe { slot.write(MaybeUninit::new(value)) }
-        });
-    }
-
-    /// # Safety
-    ///
-    /// The value must be initialized
-    unsafe fn get_unchecked(&self) -> &T {
-        debug_assert!(self.once.is_completed());
-        &*self.value.get().cast::<T>()
-    }
-}
-
-impl<T> Drop for OnceLock<T> {
-    fn drop(&mut self) {
-        if self.once.is_completed() {
-            // SAFETY: The inner value has been initialized
-            unsafe { (*self.value.get()).assume_init_drop() };
-        }
-    }
-}