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author | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2021-02-05 14:28:25 +0000 |
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committer | GitHub <[email protected]> | 2021-02-05 14:28:25 +0000 |
commit | b89fef522043f0fe4dc1977059b70bbd20d6fd75 (patch) | |
tree | f9cc2fc85cd7233351c897f725585efe55b867c6 /crates/syntax/test_data/parser/fragments/item | |
parent | 5009958847efa5d3cd85f2a9a84074069ca2088d (diff) | |
parent | dfd751303ec6336a4a78776eb8030790b7b0b000 (diff) |
Merge #7562
7562: add `generate_enum_match` assist r=matklad a=yoshuawuyts
This adds a `generate_enum_match` assist, which generates `is_` variants for enums (e.g. `Option::{is_none,is_some}` in std). This is my first attempt at contributing to Rust-Analyzer, so I'm not sure if I've gotten everything right. Thanks!
## Example
**Input**
```rust
pub(crate) enum Variant {
Undefined,
Minor, // cursor here
Major,
}
```
**Output**
```rust
pub(crate) enum Variant {
Undefined,
Minor,
Major,
}
impl Variant {
pub(crate) fn is_minor(&self) -> bool {
matches!(self, Self::Minor)
}
}
```
## Future Directions
I made this as a stepping stone for some of the more involved refactors (e.g. #5944). I'm not sure yet how to create, use, and test `window.showQuickPick`-based asssists in RA. But once that's possible, it'd probably be nice to be able to generate match methods in bulk through the quickpick UI rather than one-by-one:
```
[x] Select enum members to generate methods for. (3 selected) [ OK ]
---------------------------------------------------------------------------
[x] Undefined
[x] Minor
[x] Major
```
Co-authored-by: Yoshua Wuyts <[email protected]>
Co-authored-by: Yoshua Wuyts <[email protected]>
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