Crate enum_tree_derive 

Derive Macros

DeepVariants

Create a const array with all possible values of an enum. Target must be an enum, and each variant of the target must be of nested unit type. A variant is of nested unit type if it is either:

EnumFrom

Derive From implementations for an enum from variants.

IntoAncestors

Derive From<Self> for every enum mentioned in an #[ancestors(Parent::Variant)] attribute.