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Issues list

E0308 Suggestion gets added to unrelated code and error span is too big A-diagnostics Area: Messages for errors, warnings, and lints A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) D-imprecise-spans Diagnostics: spans don't point to exactly the erroneous code T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#134445 opened Dec 17, 2024 by LasterAlex
Compiling #[derive(Debug)] enum + dbg! is quadratic with enum variants A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. I-compiletime Issue: Problems and improvements with respect to compile times. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133945 opened Dec 6, 2024 by theemathas
1
Bad + use<> suggestion in nested macro_rules A-edition-2024 Area: The 2024 edition A-lints 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, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. E-needs-mcve Call for participation: This issue has a repro, but needs a Minimal Complete and Verifiable Example L-impl_trait_overcaptures Lint: impl_trait_overcaptures T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133769 opened Dec 2, 2024 by ehuss
2
keyword-idents is incompatible with macros A-edition-2024 Area: The 2024 edition A-lints 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, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. L-keyword_idents Lint group: keyword_idents L-keyword_idents_2024 Lint: keyword_idents_2024 T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133709 opened Dec 1, 2024 by ehuss
1
non-#[macro_export]'ed macro_rules! macros are impossible to disambiguate from built-in attributes in use declarations A-attributes Area: Attributes (`#[…]`, `#![…]`) A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#133708 opened Dec 1, 2024 by kanashimia
2
Unexpected warning when doc string invokes a macro which is defined within the same module A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-resolve Area: Name/path resolution done by `rustc_resolve` specifically C-bug Category: This is a bug. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#133656 opened Nov 30, 2024 by rami3l
3
assert_eq! fails with const { .. } in Rust 2024 A-edition-2024 Area: The 2024 edition A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#133081 opened Nov 15, 2024 by traviscross
5
#[derive(Debug)] on #[repr(packed)] enum causes internal compiler error A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-repr-packed Area: the naughtiest repr C-bug Category: This is a bug. E-needs-bisection Call for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc 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.
#133025 opened Nov 14, 2024 by urinacon
7
Bad span in suggestion for unsafe_attr_outside_unsafe in macro expansion with cfg_attr A-diagnostics Area: Messages for errors, warnings, and lints A-edition-2024 Area: The 2024 edition A-lints 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, ..) A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix` C-bug Category: This is a bug. D-edition Diagnostics: An error or lint that should account for edition differences. D-invalid-suggestion Diagnostics: A structured suggestion resulting in incorrect code. L-unsafe_attr_outside_unsafe Lint: unsafe_attr_outside_unsafe T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132908 opened Nov 11, 2024 by ehuss
2
3
Misleading error messages when using the wrong macro fragment specifiers A-diagnostics Area: Messages for errors, warnings, and lints A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) D-confusing Diagnostics: Confusing error or lint that should be reworked.
#132655 opened Nov 5, 2024 by LorDawid
2
unused_imports on pub use macros::* should explain that [macro_export] macros don't need to be exported. A-diagnostics Area: Messages for errors, warnings, and lints A-lints 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, ..) D-terse Diagnostics: An error or lint that doesn't give enough information about the problem at hand. L-unused_imports Lint: unused_imports T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#132102 opened Oct 24, 2024 by Kriskras99
1
Macros do not accept empty vis at the end of the token tree 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-lang Relevant to the language team, which will review and decide on the PR/issue. WG-macros Working group: Macros
#131950 opened Oct 19, 2024 by ChayimFriedman2
1
assert_eq! is not 100% hygienic A-diagnostics Area: Messages for errors, warnings, and lints A-hygiene Area: Macro hygiene A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. D-confusing Diagnostics: Confusing error or lint that should be reworked. D-terse Diagnostics: An error or lint 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. T-libs Relevant to the library team, which will review and decide on the PR/issue.
#131446 opened Oct 9, 2024 by GrigorenkoPV
16
Tracking Issue for proc_macro::ToTokens A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-proc-macros Area: Procedural macros C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC T-libs-api Relevant to the library API team, which will review and decide on the PR/issue. WG-macros Working group: Macros
#130977 opened Sep 28, 2024 by tgross35
2 of 5 tasks
@SpriteOvO
9
[DESIGN BUG] declarative macros lack of neat way to simulate lookahead within rust grammer syntax const X: Y A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-discussion Category: Discussion or questions that doesn't represent real issues. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#130928 opened Sep 27, 2024 by loynoir
5
Tracking issue for proc_macro in non-proc-macro crates A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) A-proc-macros Area: Procedural macros C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC E-medium Call for participation: Medium difficulty. Experience needed to fix: Intermediate. 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. WG-macros Working group: Macros
#130856 opened Sep 25, 2024 by tgross35
4 tasks
@AverseABFun
9
Incorrect diagnostic "pattern requires .. due to inaccessible fields" when matching in a macro A-diagnostics Area: Messages for errors, warnings, and lints A-hygiene Area: Macro hygiene A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) D-confusing Diagnostics: Confusing error or lint that should be reworked. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130588 opened Sep 19, 2024 by goffrie
@fmease
1
Fix cross-edition fragment specifier span behavior 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-lang Relevant to the language team, which will review and decide on the PR/issue.
#130484 opened Sep 17, 2024 by traviscross
1
Inference failure triggered by null proc macro application to totally unused and irrelevant struct A-inference Area: Type inference 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 has a repro, but needs a Minimal Complete and Verifiable Example
#130480 opened Sep 17, 2024 by ijackson
4
Declarative macros: warn on unreachable macro rule A-lints 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-feature-request Category: A feature request, i.e: not implemented / a PR. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130222 opened Sep 11, 2024 by Kriskras99
#[cfg(...)] attribute is incorrectly removed from a function parameter inside of the derive macro A-cfg Area: `cfg` conditional compilation 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.
#130004 opened Sep 5, 2024 by Veetaha
re-exported macro_export doc(hidden) pub use macro_rules macro not showing up A-cross-crate-reexports Area: Documentation that has been re-exported from a different crate 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.
#129982 opened Sep 5, 2024 by GlenDC
1
macro_rules: Fragment vis somehow matches token [ despite no visibility modifier starting with/having such token 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.
#128915 opened Aug 10, 2024 by Houtamelo
1
Macro metavar expr concat doesn't work with nested repetitions A-macros Area: All kinds of macros (custom derive, macro_rules!, proc macros, ..) C-bug Category: This is a bug. F-macro_metavar_expr_concat `#![feature(macro_metavar_expr_concat)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#127723 opened Jul 14, 2024 by Noratrieb
rustdoc leaks ident macro meta-variables in non-literal const exprs in assoc tys & impl trait refs (excl. self ty) A-const-generics Area: const generics (parameters and arguments) 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.
#127429 opened Jul 6, 2024 by maia-s
ProTip! What’s not been updated in a month: updated:<2024-12-01.