Derive Macro KeyValuePair

#[derive(KeyValuePair)]

Derives the turbo_tasks::KeyValuePair trait for a enum. Each variant need to have a value field which becomes part of the value enum and all remaining fields become part of the key.

Assuming the enum is called Abc it exposes AbcKey and AbcValue types for it too. The key enum will have Debug, Clone, PartialEq, Eq, Hash derived and the value enum will have Debug, Clone derived. It’s expected that all fields implement these traits.