#[derive(EachVariant)]

Derive method that returns each variant of an enum

Sample usage

```rust

[macro_use]

extern crate enumeachvariant_derive;

[derive(EachVariant, Eq, PartialEq, Debug)]

enum Thing { One, Two, Three, Four, }

let all: Vec = Thing::all_variants();

assert_eq!(all, vec![Thing::One, Thing::Two, Thing::Three, Thing::Four]); ```

Gotcha

Only works on enums where no variants have associated values. So we wouldn't be able to use it for this enum:

rust enum TrainStatus { OnTime, DelayedBy(std::time::Duration), }