one-of-futures

Overview

This crate implements several custom future-aware OneOf types, which behaves similarly to Either type, but suitable for more than two variants.

It also exposes impl_one_of! macro, which allows generating custom OneOf type, with the desired number and names of variants

Features

futures_03 enables support for futures 0.3 (core/std), enabled by default

sink enables support for futures 0.3 (core/std)'s Sink, enabled by default

tokio-io enabled support for tokio 0.2's AsyncRead and AsyncWrite

futures_01 enables support for futures 0.1 under the futures_01 module

Usage

Add this to your Cargo.toml: toml [dependencies] one-of-futures = "0.1"

Example

```rust use oneoffutures::imploneof;

imploneof!(MyEither; Left, Right );

fn main() { let either = match 1 { 0 => MyEither::Left(async { 1 }), _ => MyEither::Right(async { 2 }), }; } ```