From: Trans <transfire@...>
Date: 2009-08-20T00:23:14+09:00
Subject: Re: #has_arguments?



On Aug 19, 7:53 am, Roger Pack <rogerdp...@gmail.com> wrote:
> >  def meth(*a)
> >    if !a.empty?
> >      a = a.first
> >       ...
> >    else
> >      ...
> >    end
> >  end
>
> Maybe morph this to
>
> def meth(*a)
>   if has_arguments? a
>     ...
>   else
>     ...
>   end
> end

Either way is fine. The defined method interface doesn't matter.
#has_arguments? would simply report false if a call to the method
passed no arguments. If the interface definition itself does not allow
for no arguments, eg. 'def meth(a)', then #has_arguments? would simply
never return false.

T.