class Proc def call_with_binding(bind, *args) Bindless::Model.new([bind]).run_proc(self, *args) end def call_with_obj(obj, *args) m = nil p = self Object.class_eval do define_method :a_temp_method_name, &p m = instance_method :a_temp_method_name remove_method :a_temp_method_name end m.bind(obj).call(*args) end end