https://github.com/usagi/drop_some
`.drop_some` syntax sugar for `Option`. It's instead of `.map(|_|())`.
https://github.com/usagi/drop_some
Last synced: 4 months ago
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`.drop_some` syntax sugar for `Option`. It's instead of `.map(|_|())`.
- Host: GitHub
- URL: https://github.com/usagi/drop_some
- Owner: usagi
- License: mit
- Created: 2020-08-10T07:57:17.000Z (almost 6 years ago)
- Default Branch: master
- Last Pushed: 2020-08-10T08:10:56.000Z (almost 6 years ago)
- Last Synced: 2025-10-18T21:58:22.525Z (8 months ago)
- Language: Rust
- Size: 4.88 KB
- Stars: 1
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
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README
# drop_some
- This crate defines `DropSome` trait and `impl` for `Option`.
- `DropSome` trait has `.drop_some(self) -> Option<()>` function.
- This is a syntax sugar for `.map(|_|())`.
## Useful scene
```rust
fn some_function() -> Option<()>
{
match switcher
{
pattern_a => some_task1().drop_some()?
pattern_b => some_task2().drop_some()?
pattern_c => some_task3()?
pattern_d => some_task4()
_ => ()
}
}
fn some_task1() -> Option { /* abbr */ }
fn some_task2<'a>() -> Option<&'a str> { /* abbr */ }
fn some_task3() -> Option<() > { /* abbr */ }
fn some_task4() { /* abbr */ }
```
- See also:
## Note
> "I don't need it, because ..."
- Yes, your are right to your world.
- But, I tired to type/see `.map(|_|())`. So I'm happy with`.drop_some()`.
## LICENSE
- [MIT](LICENSE.md)
## Author
- USAGI.NETWORK / Usagi Ito