easy-ext

![crates-badge] ![docs-badge] ![license-badge] ![rustc-badge]

An attribute macro for easily writing extension trait pattern.

Documentation

Usage

Add this to your Cargo.toml:

toml [dependencies] easy-ext = "0.1"

The current easy-ext requires Rust 1.31 or later.

Examples

```rust use easy_ext::ext;

[ext(ResultExt)]

impl Result { pub fn errinto(self) -> Result where E: Into, { self.maperr(Into::into) } } ```

Code like this will be generated:

```rust pub trait ResultExt { fn err_into(self) -> Result where E: Into; }

impl ResultExt for Result { fn errinto(self) -> Result where E: Into, { self.maperr(Into::into) } } ```

You can elide the trait name. Note that in this case, #[ext] assigns a random name, so you cannot import/export the generated trait.

```rust use easy_ext::ext;

[ext]

impl Result { fn errinto(self) -> Result where E: Into, { self.maperr(Into::into) } } ```

See API documentation for more details.

License

Licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

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.