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Tracking issue for boxed_slice_try_from #69202

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dtolnay opened this issue Feb 16, 2020 · 0 comments · Fixed by #69538
Closed

Tracking issue for boxed_slice_try_from #69202

dtolnay opened this issue Feb 16, 2020 · 0 comments · Fixed by #69538
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B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.

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@dtolnay
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dtolnay commented Feb 16, 2020 

impl<T, const N: usize> TryFrom<Box<[T]>> for Box<[T; N]>
where
    [T; N]: LengthAtMost32;

impl<T, const N: usize> TryFrom<Rc<[T]>> for Rc<[T; N]>
where
    [T; N]: LengthAtMost32;

impl<T, const N: usize> TryFrom<Arc<[T]>> for Arc<[T; N]>
where
    [T; N]: LengthAtMost32;

These were added in #61515 with an #[unstable(...)] attribute but without a tracking issue. Since these are trait impls where both the trait and Self type are already stable, they are already callable on a stable compiler and we likely can't make further changes (other than removing the LengthAtMost32 bounds, which can take place after stabilization).

Anyone should feel free to send a "stabilization" PR changing the stability attributes to #[stable(...)].
@dtolnay dtolnay added T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC labels Feb 16, 2020
@JohnTitor JohnTitor mentioned this issue Feb 28, 2020
Merged
Dylan-DPC-zz pushed a commit to Dylan-DPC-zz/rust that referenced this issue Feb 28, 2020
@Dylan-DPC
Rollup merge of rust-lang#69538 - JohnTitor:boxed-slice-try-from, r=C…
bad53f3 
…entril

Stabilize `boxed_slice_try_from`

Closes rust-lang#69202
@bors bors closed this as completed in e4cedc9 Feb 28, 2020
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B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue.
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Stabilize boxed_slice_try_from JohnTitor/rust
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