Allow getting a mutable slice from `vec::Drain`
Open
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C-feature-request
T-libs
- Dominant language
- Rust
- Stars
- 119k
- Forks
- 16.2k
- PR merge metrics
- PR metrics pending
Description
Since Vec::drain() in a sense owns the selected range of vector items, it makes sense to be able to hand out a mutable slice pointing to them. This can happen through AsMut trait and vec::Drain::as_mut_slice(), as it is already the case for a immutable slice.
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 at the standard-library implementation of vec::Drain and inspect the existing immutable slice support and AsRef behavior. Add the requested mutable-slice API through AsMut and verify it with tests covering access to the drained range.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- backend-api-design
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 42/100