rust-lang / rust-lang/rust-analyzer

Assist: add/remove enumerate from a `for` loop

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C-feature
Dominant language
Rust
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Avg merge
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Merged PRs (30d)
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Description

Frequently I need to do some iteration and have to add .enumerate() which then forces me to go and change the signature of the for loop to match.

Would love if this could be an editor assist. Would be happy to implement if accepted.

// Going from 
for item in items.iter() {
}

// to
for (idx, item) in items.iter().enumerate() {
}

and vice versa.

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Research direction

The issue names an editor assist for Rust for-loops and .enumerate(), but no source files, tests, or entry points. Start by locating existing rust-analyzer assists for loop transformations, then inspect their tests and determine how both adding and removing .enumerate() should be covered. Done means the assist supports both directions with tests for the shown forms.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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