How to override a method with an unknown number of arguments?

Question

What am I doing:

class Foo
  alias_method :__bar__,:bar
  def bar(*arg)
    #do something
    __bar__(*arg)
  end
end

Is this the right way to do this?

Or is it better to find out how many required, optional, block arguments the original method has and write exactly the same number of arguments?

+3

texasbruce Apr 22 '12 at 22:40

1 answer

Mark reed · Accepted Answer · 2012-04-22T23:46:57+0000

Using slurpy arg is the right approach, but you should also handle any block arguments:

class Foo
  alias_method :__bar__,:bar
  def bar(*arg, &block)
    #do something
    __bar__(*arg, &block)
  end
end