enum-extract-macro 0.1.1

A derive macro for extracting enum variants into their own types.
Documentation 
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use enum_extract_macro::EnumExtract;

pub mod name_collisions {
    #![allow(dead_code, missing_copy_implementations, missing_docs)]
    pub struct Option;
    pub struct Some;
    pub struct None;
    pub struct Result;
    pub struct Ok;
    pub struct Err;
}
#[allow(unused_imports)]
use name_collisions::*;

#[allow(dead_code)]
#[derive(Debug, Clone, Copy, EnumExtract)]
enum WithGenerics<'t> {
    A(&'t str),
    B(&'t str),
}

#[test]
fn with_generics() {
    let mut with_generics = WithGenerics::A("hello");

    assert!(with_generics.is_a());
    assert!(!with_generics.is_b());

    assert!(with_generics.as_a().is_ok());
    assert!(with_generics.as_b().is_err());

    assert_eq!(with_generics.into_a().unwrap(), "hello");
    assert_eq!(*with_generics.as_a().unwrap(), "hello");
    assert_eq!(*with_generics.as_a_mut().unwrap(), "hello");

    assert!(with_generics.into_b().is_err());
    assert!(with_generics.as_b().is_err());
    assert!(with_generics.as_b_mut().is_err());
}