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<code>#![no_implicit_prelude]</code> does not disable macros

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

C-bugCategory: This is a bug.Category: This is a bug.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-editionRelevant to the edition team.Relevant to the edition team.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#138756 In rust-lang/rust;

· kpreid opened on Mar 20, 2025

Macro <code>literal</code> fragment specifiers should forward to exact tokens

A-decl-macros-2-0Area: Declarative macros 2.0 (#39412)Area: Declarative macros 2.0 (#39412)

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

T-langRelevant to the language teamRelevant to the language team

WG-macrosWorking group: MacrosWorking group: Macros

Status: Open.

#124989 In rust-lang/rust;

· tgross35 opened on May 10, 2024

Clean up implicit const promotion behavior

A-const-propArea: Constant propagationArea: Constant propagation

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-langRelevant to the language teamRelevant to the language team

WG-const-evalWorking group: Const evaluationWorking group: Const evaluation

Status: Open.

#124328 In rust-lang/rust;

· RalfJung opened on Apr 24, 2024

Tracking Issue for RFC 3550: New range types

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

B-RFC-approvedBlocker: Approved by a merged RFC but not yet implemented.Blocker: Approved by a merged RFC but not yet implemented.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-new_range`#![feature(new_range)]``#![feature(new_range)]`

S-tracking-impl-incompleteStatus: The implementation is incomplete.Status: The implementation is incomplete.

S-tracking-needs-documentationStatus: Needs documentation.Status: Needs documentation.

S-tracking-needs-migration-lintStatus: This item needs a migration lint.Status: This item needs a migration lint.

S-tracking-unimplementedStatus: The feature has not been implemented.Status: The feature has not been implemented.

T-langRelevant to the language teamRelevant to the language team

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#123741 In rust-lang/rust;

· traviscross opened on Apr 10, 2024

Disallow future-incompatibility lints in the 2024 edition

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

C-discussionCategory: Discussion or questions that doesn't represent real issues.Category: Discussion or questions that doesn't represent real issues.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#117921 In rust-lang/rust;

· tmandry opened on Nov 15, 2023

Clean up items accidentally stabilized through unstable paths

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#113387 In rust-lang/rust;

· tmandry opened on Jul 5, 2023

Tracking issue for lazy type aliases

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-lazy_type_alias`#![feature(lazy_type_alias)]``#![feature(lazy_type_alias)]`

S-tracking-impl-incompleteStatus: The implementation is incomplete.Status: The implementation is incomplete.

S-tracking-needs-migration-lintStatus: This item needs a migration lint.Status: This item needs a migration lint.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler 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.Relevant to the types team, which will review and decide on the PR/issue.

Status: Open.

#112792 In rust-lang/rust;

· GuillaumeGomez opened on Jun 19, 2023

Make mem::uninitialized inaccessible in future editions

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

T-langRelevant to the language teamRelevant to the language team

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#98862 In rust-lang/rust;

· RalfJung opened on Jul 3, 2022

Consider re-tuning the lifetime elision rules for trait objects

A-dyn-traitArea: trait objects, vtable layoutArea: trait objects, vtable layout

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

A-lintsArea: Lints (warnings about flaws in source code) such as unused_mut.Area: Lints (warnings about flaws in source code) such as unused_mut.

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

C-feature-requestCategory: A feature request, i.e: not implemented / a PR.Category: A feature request, i.e: not implemented / a PR.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#91302 In rust-lang/rust;

· scottmcm opened on Nov 27, 2021

Make lifetime elision rules for closures consistent with lifetime elision rules for functions

A-closuresArea: Closures (`|…| { … }`)Area: Closures (`|…| { … }`)

A-inferenceArea: Type inferenceArea: Type inference

A-lifetimesArea: Lifetimes / regionsArea: Lifetimes / regions

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#86921 In rust-lang/rust;

· bstrie opened on Jul 7, 2021

Non-terminals, e.g. expr, have diverged between parser and macro matcher

A-macrosArea: All kinds of macros (custom derive, macro_rules!, proc macros, ..)Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..)

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

A-parserArea: The lexing & parsing of Rust source code to an ASTArea: The lexing & parsing of Rust source code to an AST

F-inline_constInline constants (aka: const blocks, const expressions, anonymous constants)Inline constants (aka: const blocks, const expressions, anonymous constants)

F-let_chains`#![feature(let_chains)]``#![feature(let_chains)]`

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#86730 In rust-lang/rust;

· pnkfelix opened on Jun 29, 2021

Add <code>Hash</code> to the prelude

A-maybe-future-editionSomething we may consider for a future edition.Something we may consider for a future edition.

T-langRelevant to the language teamRelevant to the language team

T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.

Status: Open.

#80361 In rust-lang/rust;

· camelid opened on Dec 25, 2020