Crate enumerable

Enumerate all possible values of a type.

Enumerable is a trait used for enumerating all possible values of a type. Calling the enumerator method of a Enumerable type will return an iterator that yields all possible values of that type.

use enumerable::Enumerable;

// The output will be:
// 0
// 1
// ...
// 255
for value in u8::enumerator() {
    println!("{}", value);
}

Enumerable is implemented for most primitive types and some standard library types. You can also derive Enumerable for your own types by #[derive(Enumerable)].

use enumerable::Enumerable;

#[derive(Debug, Copy, Clone, Enumerable)]
enum Food {
    Apple,
    Banana,
    Coffee { with_milk: bool },
}

// The output will be:
// None
// Some(Apple)
// Some(Banana)
// Some(Coffee { with_milk: false })
// Some(Coffee { with_milk: true })
for value in <Option<Food> as Enumerable>::enumerator() {
    println!("{:?}", value);
}

See the examples for more examples and a guide on how to use this crate.

See the documentation of Enumerable for more details.

Structs

OptionEnumerator

OptionEnumerator is an iterator over possible values of Option<T>. It yields None first, then yields Some(item) for each possible value of T.

Traits

Enumerable

Enumerable is a trait for types that can have their possible values enumerated.

Derive Macros

Enumerable

Derives the Enumerable trait for an enum or struct.