futures-enum

#[derive(Future, Stream, Sink, AsyncRead, AsyncWrite)] for enums.

Usage

Add this to your Cargo.toml:

toml [dependencies] futures-enum = "0.1.5"

The current version of futures-enum requires Rust nightly 2019-02-15 or later.

Examples

```rust use futures::future::{self, Future}; use futures_enum::*;

[derive(Future, Stream, Sink, AsyncRead, AsyncWrite)]

enum Either { A(A), B(B), }

fn foo(x: i32) -> impl Future

{ if x < 0 { Either::A(future::lazy(|_| 1)) } else { Either::B(future::ready(x)) } } ```

See auto_enums for how to automate patterns like this.

In futures-enum 0.1.3 or later, it works well even if the dependency contains only sub-crates such as futures-core, futures-util, etc.

Supported traits

• Future - generated code
• Stream - generated code
• Sink - generated code
• AsyncRead - generated code
• AsyncWrite - generated code

See this issue for other traits.

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.