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Alloc features cleanup #87769

Merged
merged 4 commits into from
Oct 20, 2021
Merged

Alloc features cleanup #87769

merged 4 commits into from
Oct 20, 2021

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m-ou-se
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@m-ou-se m-ou-se commented Aug 4, 2021

This sorts and categorizes the #![features] in alloc and removes unused ones.

This is part of #87766

The following feature attributes were unnecessary and are removed:

// Library features:
-#![feature(cow_is_borrowed)]
-#![feature(maybe_uninit_uninit_array)]
-#![feature(slice_partition_dedup)]

// Language features:
-#![feature(arbitrary_self_types)]
-#![feature(auto_traits)]
-#![feature(box_patterns)]
-#![feature(decl_macro)]
-#![feature(nll)]

@m-ou-se m-ou-se added C-cleanup Category: PRs that clean code up or issues documenting cleanup. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Aug 4, 2021
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r? @yaahc

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 4, 2021
@bjorn3
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bjorn3 commented Aug 5, 2021

-#![feature(nll)]

These exist to test full nll mode. #66498 (comment)

@m-ou-se
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m-ou-se commented Aug 5, 2021

If we really need to keep that in alloc and/or core, we should put a clear comment why it's there. Is there any documentation of what enabling this feature will change?

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bjorn3 commented Aug 5, 2021

NLL is currently in migration mode by default, which still uses the old AST based regionck. #![feature(nll)] completes the transition to full NLL mode. #57895 is the tracking issue for completing the transition. One of the last remaining blockers for completing the transition is #86700 I think. By the way libstd used to require it at least at some point: #66494 (comment)

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yaahc commented Aug 5, 2021

LGTM once the NLL bit is sorted.

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bors commented Aug 18, 2021

☔ The latest upstream changes (presumably #86808) made this pull request unmergeable. Please resolve the merge conflicts.

@JohnCSimon JohnCSimon added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 6, 2021
@JohnCSimon JohnCSimon added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 27, 2021
@dtolnay
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dtolnay commented Oct 3, 2021

@bors delegate+

Looks good after a rebase and putting back #![feature(nll)].

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bors commented Oct 3, 2021

✌️ @m-ou-se can now approve this pull request

@dtolnay dtolnay added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Oct 3, 2021
@JohnCSimon JohnCSimon added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Oct 19, 2021
@m-ou-se
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m-ou-se commented Oct 19, 2021

@bors r=yaahc,dtolnay

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bors commented Oct 19, 2021

📌 Commit 6fdcedc has been approved by yaahc,dtolnay

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Oct 19, 2021
bors added a commit to rust-lang-ci/rust that referenced this pull request Oct 19, 2021
Rollup of 10 pull requests

Successful merges:

 - rust-lang#86479 (Automatic exponential formatting in Debug)
 - rust-lang#87404 (Add support for artifact size profiling)
 - rust-lang#87769 (Alloc features cleanup)
 - rust-lang#88789 (remove unnecessary bound on Zip specialization impl)
 - rust-lang#88860 (Deduplicate panic_fmt)
 - rust-lang#90009 (Make more `From` impls `const` (libcore))
 - rust-lang#90018 (Fix rustdoc UI for very long type names)
 - rust-lang#90025 (Revert rust-lang#86011 to fix an incorrect bound check)
 - rust-lang#90036 (Remove border-bottom from most docblocks.)
 - rust-lang#90060 (Update RELEASES.md)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 71fcb72 into rust-lang:master Oct 20, 2021
@rustbot rustbot added this to the 1.58.0 milestone Oct 20, 2021
@m-ou-se m-ou-se deleted the alloc-features-cleanup branch October 20, 2021 06:28
@dtolnay dtolnay self-assigned this Mar 25, 2024
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8 participants