enum-iterator 0.8.1

Tools to iterate over all values of a type (e.g. all variants of an enumeration)
Documentation

Overview

Tools to iterate over the values of a type.

See the [IntoEnumIterator] trait.

Examples

use enum_iterator::IntoEnumIterator;

#[derive(Debug, IntoEnumIterator, PartialEq)]
enum Day { Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday }

assert_eq!(Day::into_enum_iter().next(), Some(Day::Monday));
assert_eq!(Day::into_enum_iter().last(), Some(Day::Sunday));

use enum_iterator::IntoEnumIterator;

#[derive(Debug, IntoEnumIterator, PartialEq)]
struct Foo {
    a: bool,
    b: u8,
}

assert_eq!(Foo::into_enum_iter().next(), Some(Foo { a: false, b: 0 }));
assert_eq!(Foo::into_enum_iter().last(), Some(Foo { a: true, b: 255 }));

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