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Example of how to rewrite method_missing and respond_to? in Ruby
class CarPart
# does the method name end in _price ?
def ghost_method_condition(name)
!!name.to_s[/_price$/]
end
# rewrite method missing if the method matches ghost_method_condition
def method_missing(name, *args, &block)
super unless ghost_method_condition(name)
# do something else...
end
# rewrite respond_to? to include ghost methods
def respond_to?(name, include_private = false)
ghost_method_condition(name) || super
end
end
c = CarPart.new
puts c.respond_to? :stereo_price
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