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Use UnsafeCell::get_mut() in core::lazy::OnceCell::get_mut() #92427

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Merged
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Dec 30, 2021
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Use UnsafeCell::get_mut() in core::lazy::OnceCell::get_mut() #92427

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3 changes: 1 addition & 2 deletions library/core/src/lazy.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -102,8 +102,7 @@ impl<T> OnceCell<T> {
/// Returns `None` if the cell is empty.
#[unstable(feature = "once_cell", issue = "74465")]
pub fn get_mut(&mut self) -> Option<&mut T> {
// SAFETY: Safe because we have unique access
unsafe { &mut *self.inner.get() }.as_mut()
self.inner.get_mut().as_mut()
}

/// Sets the contents of the cell to `value`.
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