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@drio
Created October 26, 2008 22:20
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def methods_to_lambdas(mod)
instance = Class.new { include mod }.new
mod.instance_methods(false).inject(Hash.new) { |hash, meth|
hash.update(
meth.to_sym => lambda { |*args, &block|
instance.send(meth, *args, &block)
}
)
}
end
def pull_methods(mod, *names)
lambdas = methods_to_lambdas(mod)
names.each { |name|
define_method(name, &lambdas[name])
}
end
module Misc
def func_a ; p "Misc#func_a" ; end
def func_b ; p "Misc#func_b" ; end
def func_c ; p "Misc#func_c" ; end
end
class Fred
pull_methods(Misc, :func_a, :func_b)
end
Fred.new.func_a #=> Misc#func_a
Fred.new.func_b #=> Misc#func_b
Fred.new.func_c #=> NoMethodError
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