class-delegate

class <- delegate: chain

The chain class<-delegate consists of instance variable objects that should be used for delegation. The PCE message passing system will try to forward an incoming message to the values of these instance variables after it failed to locate an implementation at the object or class level. The elements of this chain are tried in the order they appear in the chain.

class->delegate Adds a variable at the end

class->prepend_delegate Adds a variable at the start

class`->`delegate	Adds a variable at the end
class`->`prepend_delegate	Adds a variable at the start