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Auto merge of #74605 - rust-lang:vec-leak, r=Amanieu
Stabilize Vec::leak as a method Closes https://github.com/rust-lang/rust/issues/62195 The signature is changed to a method rather than an associated function: ```diff -pub fn leak<'a>(vec: Vec<T>) -> &'a mut [T] +pub fn leak<'a>(self) -> &'a mut [T] ``` The reason for `Box::leak` not to be a method (`Deref` to an arbitrary `T` which might have its own, different `leak` method) does not apply.
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commit
5ef872f961
@ -1510,20 +1510,18 @@ impl<T> Vec<T> {
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/// Simple usage:
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///
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/// ```
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/// #![feature(vec_leak)]
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///
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/// let x = vec![1, 2, 3];
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/// let static_ref: &'static mut [usize] = Vec::leak(x);
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/// let static_ref: &'static mut [usize] = x.leak();
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/// static_ref[0] += 1;
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/// assert_eq!(static_ref, &[2, 2, 3]);
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/// ```
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#[unstable(feature = "vec_leak", issue = "62195")]
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#[stable(feature = "vec_leak", since = "1.47.0")]
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#[inline]
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pub fn leak<'a>(vec: Vec<T>) -> &'a mut [T]
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pub fn leak<'a>(self) -> &'a mut [T]
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where
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T: 'a, // Technically not needed, but kept to be explicit.
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{
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Box::leak(vec.into_boxed_slice())
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Box::leak(self.into_boxed_slice())
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}
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}
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