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Tracking Issue for #![feature(const_cell_into_inner)] #78729

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Tracking Issue for #![feature(const_cell_into_inner)]#78729
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A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCI-libs-radarLibs issues that are tracked on the team's radar.T-libs-api[DEPRECATED; DO NOT USE]disposition-mergeThis issue / PR is in PFCP or FCP with a disposition to merge it.finished-final-comment-periodThe final comment period is finished for this PR / Issue.

Description

@a1phyr
a1phyr
opened on Nov 4, 2020

This is a tracking issue for #![feature(const_cell_into_inner)].

Constantified functions are:

  • UnsafeCell::into_inner
  • Cell::into_inner
  • RefCell::into_inner
  • OnceCell::into_inner
  • Atomic*::into_inner (done)

Steps

Activity

  1. Imagea1phyr
    added
    C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFC
    on Nov 4, 2020
  2. ImageLeSeulArtichaut
    added
    A-const-fn
    T-libs-api[DEPRECATED; DO NOT USE]
    on Nov 4, 2020
  3. ImageKodrAus
    added
    I-libs-radarLibs issues that are tracked on the team's radar.
    on Nov 6, 2020
  4. Imagem-ou-se
    added 5 commits that reference this issue on Nov 7, 2020

    Rollup merge of rust-lang#78728 - a1phyr:const_cell_into_inner, r=dto…

    31c3252

    Rollup merge of rust-lang#78728 - a1phyr:const_cell_into_inner, r=dto…

    3f35770

    Rollup merge of rust-lang#78728 - a1phyr:const_cell_into_inner, r=dto…

    331b7fb

    Rollup merge of rust-lang#78728 - a1phyr:const_cell_into_inner, r=dto…

    c152e91

    Rollup merge of rust-lang#78728 - a1phyr:const_cell_into_inner, r=dto…

    2967e58

  5. m-ou-se commented on Mar 31, 2021

    @m-ou-se
    m-ou-se
    on Mar 31, 2021
    Member

    @rfcbot merge

    cc @rust-lang/wg-const-eval

  6. rfcbot commented on Mar 31, 2021

    @rfcbot
    rfcbot
    on Mar 31, 2021

    Team member @m-ou-se has proposed to merge this. The next step is review by the rest of the tagged team members:

    No concerns currently listed.

    Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

    See this document for info about what commands tagged team members can give me.

  7. Imagerfcbot
    added
    proposed-final-comment-periodProposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.
    disposition-mergeThis issue / PR is in PFCP or FCP with a disposition to merge it.
    on Mar 31, 2021

  8. rfcbot commented on Mar 31, 2021

    @rfcbot
    rfcbot
    on Mar 31, 2021

    🔔 This is now entering its final comment period, as per the review above. 🔔

  9. Imagerfcbot
    added
    final-comment-periodIn the final comment period and will be merged soon unless new substantive objections are raised.
    on Mar 31, 2021

  10. 6 remaining items

  11. dtolnay commented on Apr 5, 2024

    @dtolnay
    dtolnay
    on Apr 5, 2024
    Member

    According to #84087 (comment), this is blocked on the "precise drop analysis" unstable const feature (#73255).

  12. Imagematthiaskrgr
    added a commit that references this issue on Apr 6, 2024

    Rollup merge of rust-lang#123522 - dtolnay:constatomicintoinner, r=Ni…

    0b5a8ac
  13. Imagerust-timer
    added a commit that references this issue on Apr 7, 2024

    Unrolled build for rust-lang#123522

    30ca7b6
  14. Imagetgross35
    added a commit that references this issue on Aug 21, 2024

    Add `const_cell_into_inner` to `OnceCell`

    81c00dd

  15. tgross35 commented on Aug 22, 2024

    @tgross35
    tgross35
    on Aug 22, 2024
    Member

    Since this is still blocked, I made OnceCell::into_inner const under the same gate in #129382.

  16. Imagejieyouxu
    added a commit that references this issue on Aug 22, 2024

    Rollup merge of rust-lang#129382 - tgross35:once-cell-const-into-inne…

    18d4e5b
  17. Imagematthiaskrgr
    added a commit that references this issue on Aug 22, 2024

    Rollup merge of rust-lang#129382 - tgross35:once-cell-const-into-inne…

    28d4b82
  18. Imagerust-timer
    added a commit that references this issue on Aug 22, 2024

    Unrolled build for rust-lang#129382

    f67c72b
  19. Imagematthiaskrgr
    added a commit that references this issue on Sep 29, 2024

    Rollup merge of rust-lang#130972 - RalfJung:const_cell_into_inner, r=…

    a061e56
  20. Imagerust-timer
    added a commit that references this issue on Sep 29, 2024

    Unrolled build for rust-lang#130972

    289dae1
  21. ImageRalfJung
    added
    A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)
    and removed
    A-const-fn
    on Dec 1, 2024
  22. Imageibraheemdev
    closed this as completedon Jan 30, 2025
  23. Imagechristian-schilling
    added 2 commits that reference this issue on Jan 27, 2026

    Rollup merge of #130972 - RalfJung:const_cell_into_inner, r=dtolnay

    d817713

    Rollup merge of #130972 - RalfJung:const_cell_into_inner, r=dtolnay

    9213d89
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    A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCI-libs-radarLibs issues that are tracked on the team's radar.T-libs-api[DEPRECATED; DO NOT USE]disposition-mergeThis issue / PR is in PFCP or FCP with a disposition to merge it.finished-final-comment-periodThe final comment period is finished for this PR / Issue.

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