bjoernager/rust
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Use MaybeUninit::write in functor.rs

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MaybeUninit::write is stable as of 1.55.0.
This commit is contained in:
est31 2021-08-30 17:23:08 +02:00
parent 47ab5f7ce2
commit 403b80d32e
1 changed files with 1 additions and 1 deletions
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2
compiler/rustc_data_structures/src/functor.rs
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@ -26,7 +26,7 @@ impl<T> IdFunctor for Box<T> {
// inverse of `Box::assume_init()` and should be safe. // inverse of `Box::assume_init()` and should be safe.
let mut raw: Box<mem::MaybeUninit<T>> = Box::from_raw(raw.cast()); let mut raw: Box<mem::MaybeUninit<T>> = Box::from_raw(raw.cast());
// SAFETY: Write the mapped value back into the `Box`. // SAFETY: Write the mapped value back into the `Box`.
ptr::write(raw.as_mut_ptr(), f(value)); raw.write(f(value));
// SAFETY: We just initialized `raw`. // SAFETY: We just initialized `raw`.
raw.assume_init() raw.assume_init()
} }