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Issues list

Macro typos generating exponentially growing token streams cause rustc to take exponentially long A-macros

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

C-bug

Category: This is a bug.

I-compiletime

Problems and improvements with respect to compile times.

I-hang

Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc.

#97747 opened Jun 5, 2022 by CAD97

#[derive(Debug)] fails when a generic parameter shares the name of the generic type A-macros

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

C-bug

Category: This is a bug.

T-compiler

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

T-libs

Relevant to the library team, which will review and decide on the PR/issue.

#97343 opened May 24, 2022 by nekodjin

non_fmt_panics is trigged when panic! is declared in an external crate A-lint

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

A-macros

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

C-bug

Category: This is a bug.

T-compiler

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

#96997 opened May 13, 2022 by c410-f3r

Using macros 2.0 single-matcher shorthand with macro_rules! results in an invalid suggestion A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

D-incorrect

A diagnostic that is giving misleading or incorrect information

D-invalid-suggestion

A structured suggestion resulting in incorrect code

T-compiler

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

#96014 opened Apr 13, 2022 by PatchMixolydic

Give a better error when using an undeclared macro variable A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

T-compiler

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

#95943 opened Apr 11, 2022 by jyn514

Stabilize $$ and ${ignore} in Rust 1.62.0

A-macros

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

disposition-merge

This issue / PR is in PFCP or FCP with a disposition to merge it.

F-macro-metavar-expr

feature(macro_metavar_expr)

finished-final-comment-period

The final comment period is finished for this PR / Issue.

I-lang-nominated

Indicates that an issue has been nominated for discussion during a lang team meeting.

proposed-final-comment-period

Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off.

S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

T-lang

Relevant to the language team, which will review and decide on the PR/issue.

#95860 opened Apr 9, 2022 by c410-f3r

Loading…

Odd macro diagnostic "no rules expected the token ``" with empty vis fragment capture A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

D-papercut

Diagnostic error that needs small tweaks

T-compiler

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

#95778 opened Apr 7, 2022 by Veykril

rustc_expand can be tricked into infinite loops A-macros

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

C-bug

Category: This is a bug.

E-easy

Call for participation: Experience needed to fix: Easy / not much (good first issue)

E-mentor

Call for participation: This issue is currently mentored.

T-compiler

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

#95698 opened Apr 5, 2022 by jyn514

Confusing source location for "missing fragment specifier" A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

A-parser

Area: The parsing of Rust source code to an AST.

D-confusing

Confusing diagnostic error that should be reworked

D-papercut

Diagnostic error that needs small tweaks

T-compiler

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

#95463 opened Mar 30, 2022 by mikebenfield

$crate is not a valid new identifier for ::proc_macro::Ident::new() A-macros

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

A-proc-macros

Area: Procedural macros

C-bug

Category: This is a bug.

#95081 opened Mar 18, 2022 by danielhenrymantilla

feat: matches! to return data in an Option A-macros

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

C-feature-request

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

T-libs-api

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

#92655 opened Jan 7, 2022 by numero-744

-Zmacro-backtrace gets confused when macros define other macros A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

E-needs-mcve

Call for participation: This issue needs a Minimal Complete and Verifiable Example

T-compiler

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

#92180 opened Dec 21, 2021 by jyn514

Hint possible ambiguous derive macros for extern crate A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

A-proc-macros

Area: Procedural macros

C-enhancement

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

D-terse

A diagnostic that doesn't give enough information about the problem at hand

T-compiler

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

#91316 opened Nov 28, 2021 by Stock84-dev

New declarative macros, functions and fields not being recognized A-macros

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

A-macros-2.0

Area: declarative macros 2.0, https://github.com/rust-lang/rust/issues/39412

C-discussion

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

F-decl_macro

`#![feature(decl_macro)]`

requires-nightly

This issue requires a nightly compiler in some way.

#91249 opened Nov 26, 2021 by BeastLe9enD

Diagnostics: improve error message for incorrect inner attribute A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

D-confusing

Confusing diagnostic error that should be reworked

D-newcomer-roadblock

Confusing diagnostic error hard to understand for new users

T-compiler

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

#89566 opened Oct 5, 2021 by ogham

Test src\test\rustdoc\macro-document-private-duplicate.rs fails spuriously A-macros

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

C-bug

Category: This is a bug.

T-rustdoc

Relevant to the rustdoc team, which will review and decide on the PR/issue.

#89228 opened Sep 24, 2021 by petrochenkov

$pat followed by a : is used in the language, but isn't allowed for MBE A-macros

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

C-bug

Category: This is a bug.

#87724 opened Aug 3, 2021 by WaffleLapkin

Error when proc macro derive output doesn't fully parse

A-macros

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

A-parser

Area: The parsing of Rust source code to an AST.

A-proc-macros

Area: Procedural macros

C-bug

Category: This is a bug.

S-waiting-on-author

Status: This is awaiting some action (such as code changes or more information) from the author.

T-compiler

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

#87316 opened Jul 20, 2021 by m-ou-se

Loading…

Invalid derive proc macro output silently ignored A-macros

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

A-proc-macros

Area: Procedural macros

C-bug

Category: This is a bug.

T-compiler

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

#87314 opened Jul 20, 2021 by m-ou-se

proc macro invoked by normal macro has weird call_site A-macros

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

A-proc-macros

Area: Procedural macros

C-bug

Category: This is a bug.

T-compiler

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

T-lang

Relevant to the language team, which will review and decide on the PR/issue.

T-libs

Relevant to the library team, which will review and decide on the PR/issue.

#86675 opened Jun 27, 2021 by anuejn

Inert attributes in $expr nonterminals are sometimes duplicated A-attributes

Area: #[attributes(..)]

A-macros

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

C-bug

Category: This is a bug.

#86055 opened Jun 6, 2021 by petrochenkov

Assertion failed: import.imported_module.get().is_none() A-macros

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

C-bug

Category: This is a bug.

E-needs-mcve

Call for participation: This issue needs a Minimal Complete and Verifiable Example

I-ICE

Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

T-compiler

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

#85992 opened Jun 4, 2021 by ralpha

Documentation request: include_str and format_args combination A-docs

Area: documentation for any part of the project, including the compiler, standard library, and tools

A-macros

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

C-enhancement

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

T-compiler

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

#85846 opened May 31, 2021 by jkelleyrtp

Error message contains $crate instead of crate name A-diagnostics

Area: Messages for errors, warnings, and lints

A-macros

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

C-bug

Category: This is a bug.

#85244 opened May 13, 2021 by Aaron1011

Rustdoc omits source line numbers in diagnostics if they originate in a macro A-diagnostics

Area: Messages for errors, warnings, and lints

A-intra-doc-links

Area: Intra-doc links, the ability to link to items in docs by name

A-macros

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

C-bug

Category: This is a bug.

#84694 opened Apr 29, 2021 by jyn514

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