mirror of
https://github.com/rust-lang/rust-analyzer
synced 2024-11-16 09:48:10 +00:00
5664a2b0b3
9814: Generate default impl when converting `#[derive(Debug)]` to manual impl r=yoshuawuyts a=yoshuawuyts
This patch makes it so when you convert `#[derive(Debug)]` to a manual impl, a default body is provided that's equivalent to the original output of `#[derive(Debug)]`. This should make it drastically easier to write custom `Debug` impls, especially when all you want to do is quickly omit a single field which is `!Debug`.
This is implemented for enums, record structs, tuple structs, empty structs - and it sets us up to implement variations on this in the future for other traits (like `PartialEq` and `Hash`).
Thanks!
## Codegen diff
This is the difference in codegen for record structs with this patch:
```diff
struct Foo {
bar: String,
}
impl fmt::Debug for Foo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
- todo!();
+ f.debug_struct("Foo").field("bar", &self.bar).finish()
}
}
```
Co-authored-by: Irina Shestak <shestak.irina@gmail.com>
Co-authored-by: Yoshua Wuyts <yoshuawuyts@gmail.com>
Co-authored-by: Yoshua Wuyts <yoshuawuyts+github@gmail.com>
|
||
|---|---|---|
| .. | ||
| base_db | ||
| cfg | ||
| flycheck | ||
| hir | ||
| hir_def | ||
| hir_expand | ||
| hir_ty | ||
| ide | ||
| ide_assists | ||
| ide_completion | ||
| ide_db | ||
| ide_diagnostics | ||
| ide_ssr | ||
| limit | ||
| mbe | ||
| parser | ||
| paths | ||
| proc_macro_api | ||
| proc_macro_srv | ||
| proc_macro_test | ||
| profile | ||
| project_model | ||
| rust-analyzer | ||
| sourcegen | ||
| stdx | ||
| syntax | ||
| test_utils | ||
| text_edit | ||
| toolchain | ||
| tt | ||
| vfs | ||
| vfs-notify | ||