Tracking Issue for const_index
Open
Nobody has claimed this yet.
C-tracking-issue
F-const_trait_impl
S-tracking-impl-incomplete
T-libs
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.1k
- PR merge metrics
- PR metrics pending
Description
Feature gate: #![feature(const_index)]
This is a tracking issue for the constness of the Index, IndexMut, and SliceIndex traits and const functions using them
Public API
const {
let x: &[u32] = ...;
let y = &x[5..];
}
Steps / History
(Remember to update the S-tracking-* label when checking boxes.)
- Implementation: https://github.com/rust-lang/rust/pull/143921
- Final comment period (FCP)^1
- Stabilization PR
Unresolved Questions
- None yet.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with implementation PR #143921 and the const_index feature gate. Review the proposed constness for Index, IndexMut, and SliceIndex, including the example using &x[5..]. Done requires completing the implementation, final comment period, and stabilization PR checklist items.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100