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rustdoc doesn't show that a trait bound is ~const #91187

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camelid opened this issue Nov 24, 2021 · 2 comments
Open

rustdoc doesn't show that a trait bound is ~const #91187

camelid opened this issue Nov 24, 2021 · 2 comments
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A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) C-bug Category: This is a bug. F-const_trait_impl `#![feature(const_trait_impl)]` requires-nightly This issue requires a nightly compiler in some way. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.

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@camelid
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camelid commented Nov 24, 2021 •
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For example, see https://doc.rust-lang.org/nightly/std/intrinsics/fn.const_eval_select.html. The trait bounds for F and G each include ~const, and while the bounds themselves are shown, ~const is not.
@camelid camelid added T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. A-const-fn C-bug Category: This is a bug. requires-nightly This issue requires a nightly compiler in some way. labels Nov 24, 2021
@inquisitivecrystal inquisitivecrystal added the F-const_trait_impl `#![feature(const_trait_impl)]` label Nov 26, 2021
@fee1-dead
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Related: #92229 helped by not showing ~const Drop. We don't really have a policy for documenting experimental features in rustdoc, since const_trait_impl is not yet accepted and ~const is still provisional syntax, this issue is probably currently unactionable.

@fee1-dead
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fee1-dead commented Sep 18, 2022 •
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Coming back at this. Hiding const trait bounds was deliberate. const_trait_impl is provisional and its RfC was not approved. Showing an unstable syntax in rustdoc should be avoided.

@GoldsteinE GoldsteinE mentioned this issue Nov 25, 2022
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@RalfJung RalfJung added A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) and removed A-const-fn labels Dec 1, 2024
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A-const-eval Area: Constant evaluation, covers all const contexts (static, const fn, ...) C-bug Category: This is a bug. F-const_trait_impl `#![feature(const_trait_impl)]` requires-nightly This issue requires a nightly compiler in some way. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue.
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@RalfJung @inquisitivecrystal @camelid @fee1-dead