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Implement range indexing

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
rust
Domain
tooling

Research direction

Start by locating the NonEmpty indexing implementation and its existing usize behavior, then compare it with Rust's Range, RangeFrom, RangeTo, and RangeFull indexing on Vec. Add coverage for the four range forms shown in the issue and verify that each expression compiles and returns the expected slice.

Written by the indexing model from the issue text.

Description

It should be possible to index a NonEmpty with a Range{,From,To,Full}:

fn foo(a: Vec<u8>, b: NonEmpty<u8>) {
    let _ = a[5..];
    let _ = b[5..]; // mismatched types expected type `usize` found struct
                    // `std::ops::RangeFrom<{integer}>`
}
Dominant language
Rust
Stars
74
Forks
30
PR merge metrics
No merged PRs in 30d

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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