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Issues list

Trait aliases make it possible to sidestep various syntactic trait bound checks C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#135342 opened Jan 10, 2025 by fmease
2
Hang from infinitely-self-recursive trait alias C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` I-hang Issue: The compiler never terminates, due to infinite loops, deadlock, livelock, etc. S-has-mcve Status: A Minimal Complete and Verifiable Example has been found for this issue T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#133901 opened Dec 5, 2024 by wxie7
1
9
RFC #1733 (Trait Aliases): compilation crash when putting "diagnostic::on_unimplemented" on alias C-bug Category: This is a bug. F-on_unimplemented Error messages that can be tackled with `#[rustc_on_unimplemented]` F-trait_alias `#![feature(trait_alias)]` I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ S-bug-has-test Status: This bug is tracked inside the repo by a `known-bug` test. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#130627 opened Sep 20, 2024 by andrzejressel
RFC #1733 (Trait Aliases): use of lifetime parameter in trait alias not detected A-lifetimes Area: Lifetimes / regions A-trait-objects Area: trait objects, vtable layout C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#127725 opened Jul 14, 2024 by ilonachan
2
Compiler wants to add bound which already exists to generic. A-associated-items Area: Associated items (types, constants & functions) A-diagnostics Area: Messages for errors, warnings, and lints A-trait-system Area: Trait system C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` fixed-by-next-solver Fixed by the next-generation trait solver, `-Znext-solver`. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#123513 opened Apr 5, 2024 by meltah
3
Error in specialization type checking when using trait aliases A-specialization Area: Trait impl specialization C-bug Category: This is a bug. F-specialization `#![feature(specialization)]` F-trait_alias `#![feature(trait_alias)]` requires-nightly This issue requires a nightly compiler in some way.
#74809 opened Jul 27, 2020 by jsmith628
Parameter usage is not properly propagated through trait aliases C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
#74093 opened Jul 6, 2020 by vandenheuvel
1
The bounds information of associated types is not propagated correctly when used with trait aliases. A-trait-system Area: Trait system C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` requires-nightly This issue requires a nightly compiler in some way. 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.
#68210 opened Jan 14, 2020 by wdanilo
5
Fix trait_ref_to_existential as trait aliases is stabilized A-dyn-compatibility Area: Dyn compatibility (formerly: object safety) A-trait-objects Area: trait objects, vtable layout C-bug Category: This is a bug. F-trait_alias `#![feature(trait_alias)]` requires-nightly This issue requires a nightly compiler in some way. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-types Relevant to the types team, which will review and decide on the PR/issue.
#66420 opened Nov 14, 2019 by estebank
Tracking issue for trait aliases A-trait-system Area: Trait system B-RFC-approved Blocker: Approved by a merged RFC but not yet implemented. B-unstable Blocker: Implemented in the nightly compiler and unstable. C-tracking-issue Category: An issue tracking the progress of sth. like the implementation of an RFC F-trait_alias `#![feature(trait_alias)]` S-tracking-needs-summary Status: It's hard to tell what's been done and what hasn't! Someone should do some investigation. T-lang Relevant to the language team, which will review and decide on the PR/issue.
#41517 opened Apr 24, 2017 by withoutboats
5 of 13 tasks
115
ProTip! Follow long discussions with comments:>50.