rust-lang / rust-lang/rust-analyzer

Struct fields expansion in other structs Assist

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#15,389 4 comments 1 reaction 0 assignees View on GitHub

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A-assists C-feature
Dominant language
Rust
Stars
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Forks
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Avg merge
1d 12h
Merged PRs (30d)
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Description

struct Point2D {
    x: i32,
    y: i32,
}

struct Point3D {
    ..Point2D$0
    z: i32,
}

Expands to:

struct Point2D {
    x: i32,
    y: i32,
}

struct Point3D {
    x: i32,
    y: i32,
    z: i32,
}

Contributor guide

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue does not name implementation files, tests, or an entry point. Start by locating the assist responsible for Rust struct field expansion and trace how the existing Point2D and Point3D example is parsed; done means the assist expands fields from another struct while preserving the shown z field.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
developer-experience
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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