A closed type.

A closed type is a type which is fully resolved and bound and contains no open type variables. All instance types are closed at runtime.

You have only four sorts of types:

no type hierarchy

no supertypes hierarchy

Inherited Attributes
Attributes inherited from: Object
Methods
exactlySource Codeshared formal Boolean exactly(Type<Anything> type)

True if the given type is a exactly this type.

subtypeOfSource Codeshared default Boolean subtypeOf(Type<Anything> type)

True if this type is a subtype of the given type, or if both types are the same.

supertypeOfSource Codeshared formal Boolean supertypeOf(Type<Anything> type)

True if this type is a supertype of the given type, or if both types are the same.

typeOfSource Codeshared formal Boolean typeOf(Anything instance)

True if the given instance is of this type, or is of a subtype of this type.

Inherited Methods
Methods inherited from: Object