Module: SingleForwardable

The SingleForwardable module provides delegation of specified methods to a designated object, using the methods def_delegator and def_delegators. This module is similar to Forwardable, but it works on objects themselves, instead of their defining classes.

Also see the example at forwardable.rb.

Methods

def_delegator def_delegators def_singleton_delegator def_singleton_delegators

Public Instance methods

def_delegator(accessor, method, ali = method)

Alias for def_singleton_delegator

def_delegators(accessor, *methods)

Alias for def_singleton_delegators

def_singleton_delegator(accessor, method, ali = method)

Defines a method method which delegates to obj (i.e. it calls the method of the same name in obj). If new_name is provided, it is used as the name for the delegate method.

See the example at forwardable.rb.

def_singleton_delegators(accessor, *methods)

Shortcut for defining multiple delegator methods, but with no provision for using a different name. The following two code samples have the same effect:

  single_forwardable.def_delegators :@records, :size, :<<, :map

  single_forwardable.def_delegator :@records, :size
  single_forwardable.def_delegator :@records, :<<
  single_forwardable.def_delegator :@records, :map

See the example at forwardable.rb.