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"encountered dangling pointer in final value of constant" solved by nested const { const {} }

A-docsArea: Documentation for any part of the project, including the compiler, standard library, and toolsArea: Documentation for any part of the project, including the compiler, standard library, and tools

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

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

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.

Status: Open.

#137021 In rust-lang/rust;

· m-ou-se opened on Feb 14, 2025

Inline <code>const</code> expression inside <code>vec!</code>/macros should suggest adding parentheses under edition &lt;2024

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

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

A-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`

D-newcomer-roadblockDiagnostics: Confusing error or lint; hard to understand for new users.Diagnostics: Confusing error or lint; hard to understand for new users.

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

S-has-mcveStatus: A Minimal Complete and Verifiable Example has been found for this issueStatus: A Minimal Complete and Verifiable Example has been found for this issue

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.

Status: Open.

#126459 In rust-lang/rust;

· Zalathar opened on Jun 14, 2024

Inappropriate <code>unused_parens</code> for inline <code>const</code> inside <code>vec!</code>/macros

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

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

D-incorrectDiagnostics: A diagnostic that is giving misleading or incorrect information.Diagnostics: A diagnostic that is giving misleading or incorrect information.

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

L-unused_parensLint: unused_parensLint: unused_parens

S-has-mcveStatus: A Minimal Complete and Verifiable Example has been found for this issueStatus: A Minimal Complete and Verifiable Example has been found for this issue

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.

Status: Open.

#126457 In rust-lang/rust;

· Zalathar opened on Jun 14, 2024

generic_const_exprs and inline_const interact poorly.

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

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

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

P-lowLow priorityLow priority

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.

Status: Open.

#124167 In rust-lang/rust;

· emilio opened on Apr 19, 2024

<code>generic_const_exprs</code> can break inline const blocks

A-const-genericsArea: const generics (parameters and arguments)Area: const generics (parameters and arguments)

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

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

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

P-lowLow priorityLow priority

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.

Status: Open.

#116320 In rust-lang/rust;

· calebzulawski opened on Oct 1, 2023

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

Improve error for missing braces in const block

A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lints

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

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

D-confusingDiagnostics: Confusing error or lint that should be reworked.Diagnostics: Confusing error or lint that should be reworked.

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

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.

Status: Open.

#78168 In rust-lang/rust;

· camelid opened on Oct 20, 2020

Tracking Issue for inline const patterns (RFC 2920)

A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)

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

F-inline_const_pat#![feature(inline_const_pat)]#![feature(inline_const_pat)]

S-tracking-needs-summaryStatus: It's hard to tell what's been done and what hasn't! Someone should do some investigation.Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation.

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

Status: Open.

#76001 In rust-lang/rust;

· nikomatsakis opened on Aug 27, 2020