typekey

Welcome to the typekey! We privide an extension API for type tags, called a type key, as well as some higher kinded type-polymorphic collections.

In brief, typekey provides the following features:

• A TypeKey is a TypeTag that is suitable for use as a key in a Set or a Map.
• A TypeKeyMap is a Map from TypeKey to objects with type arguments that match the type indicated by the TypeKey.
• A TypeBoundMap is a Map where the key and value of each key-value pair is bound to the same type argument.

Here’s some more in-depth material to help you get started:

1. Experimenting in the Scala REPL
2. Setting up a Library Dependency on typekey
3. TypeKeys
4. TypeKeyMaps
5. TypeBoundMaps
6. Using types that do not have exactly one type parameter with TypeKeyMaps and TypeBoundMaps