Enumkit

There are currently 2 derive macros: EnumValues and EnumMapping. Both are only intended to be used for enums which are exclusively unit variants, meaning they look something like this:

enum X {
    A,
    B,
    C
}

EnumValues is used to expose these methods:

• len() which provides the number of variants.
• values() which provides an iterator over all variants.

EnumMapping is used to provide iterators and constructors for a fixed-size static mapping from the variants to the user's type. If the name of your enum is Enum, it expands with these definitions:

• EnumMapping - the data structure that holds the mapping. This has a similar API to HashMap<Enum, T>
• EnumMappingIntoIter
• EnumMappingIter