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-- forwardable.rb
$Release Version: 1.1 $
$Revision: 11708 $
$Date: 2007-02-13 08:01:19 +0900 (Tue, 13 Feb 2007) $
Original version by Tosh
=begin
= Forwardable
A Module to define delegations for selected methods to a class.
== Usage
Using through extending the class.
class Foo
extend Forwardable
def_delegators("@out", "printf", "print")
def_delegators(:@in, :gets)
def_delegator(:@contents, :[], "content_at")
end
f = Foo.new
f.printf ...
f.gets
f.content_at(1)
== Methods
--- Forwardable#def_instance_delegators(accessor, *methods)
adding the delegations for each method of ((|methods|)) to
((|accessor|)).
--- Forwardable#def_instance_delegator(accessor, method, ali = method)
adding the delegation for ((|method|)) to ((|accessor|)). When
you give optional argument ((|ali|)), ((|ali|)) is used as the
name of the delegation method, instead of ((|method|)).
--- Forwardable#def_delegators(accessor, *methods)
the alias of ((|Forwardable#def_instance_delegators|)).
--- Forwardable#def_delegator(accessor, method, ali = method)
the alias of ((|Forwardable#def_instance_delegator|)).
= SingleForwardable
a Module to define delegations for selected methods to an object.
== Usage
Using through extending the object.
g = Goo.new
g.extend SingleForwardable
g.def_delegator("@out", :puts)
g.puts ...
== Methods
--- SingleForwardable#def_singleton_delegators(accessor, *methods)
adding the delegations for each method of ((|methods|)) to
((|accessor|)).
--- SingleForwardable#def_singleton_delegator(accessor, method, ali = method)
adding the delegation for ((|method|)) to ((|accessor|)). When
you give optional argument ((|ali|)), ((|ali|)) is used as the
name of the delegation method, instead of ((|method|)).
--- SingleForwardable#def_delegators(accessor, *methods)
the alias of ((|SingleForwardable#def_instance_delegators|)).
--- SingleForwardable#def_delegator(accessor, method, ali = method)
the alias of ((|SingleForwardable#def_instance_delegator|)).
=end
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