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Tracking issue for RFC 2515, "Permit impl Trait in type aliases" #63063

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@Centril

Description

@Centril

This is a tracking issue for the RFC "Permit impl Trait in type aliases" (rust-lang/rfcs#2515) which is implemented under the following #![feature(..)] gates:

About tracking issues

Tracking issues are used to record the overall progress of implementation.
They are also uses as hubs connecting to other relevant issues, e.g., bugs or open design questions.
A tracking issue is however not meant for large scale discussion, questions, or bug reports about a feature.
Instead, open a dedicated issue for the specific matter and add the relevant feature gate label.

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A-impl-traitArea: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.B-RFC-approvedBlocker: Approved by a merged RFC but not yet implemented.B-unstableBlocker: Implemented in the nightly compiler and unstable.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCF-impl_trait_in_assoc_type`#![feature(impl_trait_in_assoc_type)]`F-type_alias_impl_trait`#[feature(type_alias_impl_trait)]`T-langRelevant to the language team, which will review and decide on the PR/issue.T-typesRelevant to the types team, which will review and decide on the PR/issue.needs-fcpThis change is insta-stable, so needs a completed FCP to proceed.requires-nightlyThis issue requires a nightly compiler in some way.

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In Progress

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Accepted RFC

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