From: Macario Ortega <macarui@...>
Date: 2008-10-30T05:17:24+09:00
Subject: Re: Named arguments gem

Daniel Berger wrote:
> On Oct 27, 9:58�pm, Macario Ortega <maca...@gmail.com> wrote:
>> >> This works fine.
>> >> Regards,
>> Mine is just hosted at github
>>
>> If you want to give it a try you have to downolad it fromhttp://github.com/maca/namedarguments/tree/master/
>>
>> and install acording to the Readme file.
> 
> Aha, thanks, that explains it.
> 
> Could I convince you to change the name then? I mean, you could do
> more than named arguments couldn't you? Also, it would eliminate the
> confusion.
> 
> Could you also add some sort of optional pseudo-static typing that
> would automatically raise a TypeError if the wrong type was given?
> 
> class Example
>   def test_method(Fixnum alpha = 1, String beta = "world")
>     [alpha, beta]
>   end
> end
> 
> ex = Example.new
> ex.test_method(:beta => "Hello", :alpha => 3) # ok
> ex.test_method(:alpha => "Hello", :beta => 3) # TypeError
> 
> If so, consider it a feature request. :)
> 
> Regards,
> 
> Dan


Yeah, I think I will change the gem name to avoid confusion, about the 
semi-static syntax you propose is not very ruby-ish, the ruby 
interpreter would complain if you define a method like you propose but 
you could define your method like this:

class Example
  def test_method( alpha = 1, beta = "wold)
    raise TypeError.new("alpha must be an Integer") unless 
alpha.instance_of?(Integer)
    ...do stuff with alpha and beta
  end
  named_args_for :test_method
end




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