rust-lang / rust-lang/rust-analyzer
[FR] Code action: expand `||` into inferred closure params/return type at call site (e.g. `|a: u64| -> u32 { … }`)
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Description
Hello,
Do you think rust-analyzer can have this?
fn main(){
// I write, and put cursor after ||
here(||);
// Then I want to rust-analyzer's code-action convert above line code to bellow code:
here(|a:u64|-> u32 {
});
}
fn here<F>(a: F)
where
F: FnOnce(u64) -> u32,
{
todo!()
}
Thank you.
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Research direction
The issue names no files, tests, or entry points; begin by locating rust-analyzer's existing code-action handling and support for inferred closure types. Compare the requested Rust example with current behavior, then define completion as a code action that expands the closure with the inferred parameter and return types at the call site.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- devtools
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100