variant_count 1.1.0

Derive macro for enum which adds to it the count of variants.

Enum variant count

This crate provides VariantCount derive macro for enum which adds to it the VARIANT_COUNT constant, containing count of enum variants.

The VariantCount usage example:

#[derive(VariantCount)]
enum Test {
    First(i32),
    Second(Option<String>),
    Third,
}

assert_eq!(Test::VARIANT_COUNT, 3);

If you're using Cargo, just add it to your Cargo.toml:

[dependencies]
variant_count = "1.1"

MIT