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