是否可迅速编制废墟方法的可能参数名称?
例如:
def my_method(param1, param2, param3, ...)
# stuff
end
puts get_params("my_method")
这将产生这样的结果:
param1
param2
param3
...
感谢!
Oh, btw I m on ree-1.8.7...
How about:
class A
def my_method(param1, param2, param3)
# stuff
end
end
A.instance_method(:my_method).parameters # => [[:req, :param1],[:req, :param2],[:req, :param3]]
A.instance_method(:my_method).parameters.collect { |p| p[1] } # => [:param1, param2, param3]
如果你在ir子上这样做,例如:
>> def my_method(param1, param2, param3)
>> # stuff
>> end
=> nil
>> def get_params(method_name)
>> self.class.instance_method(method_name.to_sym).parameters.collect { |p| p[1] }.each { |name| puts name }
>> end
=> nil
>> get_params(:my_method)
param1
param2
param3
=> [:param1, :param2, :param3]
(Copy/pasted from my irb console.)
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