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# Derivative
[](https://crates.io/crates/derivative)
[](https://github.com/mcarton/rust-derivative#license)
This crate provides a set of alternative customizable `#[derive]` attributes for Rust.
## [Documentation][documentation]
## Stability
This crate is stable and follows semver. It requires *rustc 1.34 or later* and changing the minimal rustc version will be considered a semver breaking change.
## What it does
```rust
#[derive(Derivative)]
#[derivative(Debug)]
struct Foo {
foo: u8,
#[derivative(Debug="ignore")]
bar: u8,
}
// Prints `Foo { foo: 42 }`
println!("{:?}", Foo { foo: 42, bar: 1 });
```
Check the [documentation] for more!
## License
Licensed under either of
* Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
<http://www.apache.org/licenses/LICENSE-2.0>)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or <http://opensource.org/licenses/MIT>)
at your option.
## Acknowledgements
This is inspired from how [`serde`] wonderfully handles attributes.
This also takes some code and ideas from `serde` itself.
Some tests are directly adapted from `rustc`'s tests.
## Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall
be dual licensed as above, without any additional terms or conditions.
[`serde`]: https://crates.io/crates/serde
[documentation]: https://mcarton.github.io/rust-derivative/latest/index.html
[rustc]: https://github.com/rust-lang/rust
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