NewEnclosedEnvironment creates a new environment that extends a given outer environment.

NewEnvironment creates a new environment.

Array is a representation of array - a list of Objects.

Boolean Object represents a Boolean.

Builtin represents builtin functions.

Environment holds variable bindings in the current and outer scopes.

Error contains the error message.

Function is an representation of functions.

HashKey contains a unique hash value and can be linked to a object.String, object.Boolean, object.Integer.

Integer Object represents an Integer.

Null object.

ReturnValue contains the Object to be returned.

String is a representation of string.

Hashable represents objects that are usable as a hash.

Object represents interpreted values.