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Versions: 6
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Contents
# = behavng.rb
#
# CREDIT Nobuyoshi Nakada
class Behavior < Module
def define(behavior, &body)
if body
define_method(behavior, &body)
else
behavior.each do |behavior, body|
if body
define_method(behavior, &body)
elsif body.nil?
remove_method(behavior)
else
undef_method(behavior)
end
end
end
end
end
module Kernel
def behaving(behavior, &body)
unless @_behaviors
extend(@_behaviors = Behavior.new)
end
@_behaviors.define(behavior, &body)
end
end
# OLD IMPLEMENTATION
=begin
class Behavior < Module
def initialize(behavior, &body)
if body
define_method(behavior, &body)
else
behavior.each do |behavior, body|
if body
define_method(behavior, &body)
elsif body.nil?
remove_method(behavior)
else
undef_method(behavior)
end
end
end
end
end
module Kernel
def behaving(behavior, &body)
extend(Behavior.new(behavior, &body))
end
end
=end
Version data entries
6 entries across 6 versions & 1 rubygems