From: "Erik Bågfors" <erik@...>
Date: 2001-11-28T23:03:51+09:00
Subject: [ruby-talk:26788] Re: overload possible?

Well.. you kind of can....


def test1(a,b=3)
	puts "a = #{a}"
	puts "b = #{b}"
end

def test2(*args)
	puts "number of args = " + args.length.to_s
	puts "arguments are:"
	args.each { |a| print a }
	puts
end

test1(1,2)
test1(1)
test2(1,2,3)
test2(1,2,3,4,5)

It's not the same as method overloading but you can get the same concept
easy.  For example

def method_that_takes_two_args(a,b)
   blaha
end

def method_that_takes_three_args(a,b,c)
   blaha
end

def method_x(*args)
   if (args.lenght == 2)
      method_tat_takes_two_args(args[0],args[1])
   elsif(args.length == 3) 
       method_that_takes_three_args(args[0],args[1],args[3])
   else
       raise blaha
   end
end


/Erik

On Wed, 2001-11-28 at 14:45, Wyss Clemens wrote:
> No, UNLESS you ask Guy Decoux (ts) to give you his *extension* 
> ;-)
> Clemens
> 
> > -----Original Message-----
> > From: Masanori Fujita [mailto:fujita@uni-muenster.de]
> > Sent: Mittwoch, 28. November 2001 12:51
> > To: ruby-talk@ruby-lang.org
> > Subject: [ruby-talk:26770] overload possible?
> > 
> > 
> > Hello,
> > 
> > is it possible to define Ruby methods with the same names but 
> > different
> > number of arguments (overload concept in other languages) ?
> > 
> > Masanori
> > 
> > 
-- 
Erik B�gfors               | erik@bagfors.nu
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