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Tracking Issue for #![feature(const_impl_trait)] #77463

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Tracking Issue for #![feature(const_impl_trait)]#77463
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A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)B-unstableBlocker: Implemented in the nightly compiler and unstable.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
@ecstatic-morse

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@ecstatic-morse
ecstatic-morse
opened on Oct 2, 2020 · edited by ecstatic-morse
Contributor

This allows argument and return position impl Trait in the signature of a const fn. It also allows impl Trait in other const-contexts, although this is only possible with additional feature gates (see #63065).

Formerly, this was gated under #![feature(const_fn)].

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ecstatic-morse
added
C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFC
A-const-fn
T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
B-unstableBlocker: Implemented in the nightly compiler and unstable.
on Oct 2, 2020
ecstatic-morse
mentioned this on Oct 2, 2020
ecstatic-morse
changed the title [-]Tracking Issue for `#![feature(const_fn_impl_trait)]`[/-] [+]Tracking Issue for `#![feature(const_impl_trait)]`[/+] on Oct 7, 2020
bors
added a commit that references this issue on Oct 7, 2020

Auto merge of rust-lang#77464 - ecstatic-morse:const-fn-impl-trait, r…

4437b4b
jhpratt

jhpratt commented on May 25, 2021

@jhpratt
jhpratt
on May 25, 2021
Member

What are the blockers on this?

memoryruins

memoryruins commented on Apr 11, 2022

@memoryruins
memoryruins
on Apr 11, 2022 · edited by memoryruins
Contributor

This was stabilized last month in #93827 and will likely be in the next release, 1.61.

4kmartin
mentioned this on Jul 21, 2022
pnkfelix

pnkfelix commented on Oct 21, 2022

@pnkfelix
pnkfelix
on Oct 21, 2022
Member

This is done! Closing.

pnkfelix
closed this as completedon Oct 21, 2022
RalfJung
added
A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)
on Dec 1, 2024
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    A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)B-unstableBlocker: Implemented in the nightly compiler and unstable.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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          Tracking Issue for `#![feature(const_impl_trait)]` · Issue #77463 · rust-lang/rust