From: Yang Bob <bob.yang.dev@...>
Date: 2006-12-04T13:07:53+09:00
Subject: Re: method overloading like Java?

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But how about overloading by parameter numbers. such as:
class FooClass {
   def foo(first){ }
   def foo(first, second) { }
}

does ruby support this ? if can not, how can we workaround this?

thanks


2006/12/4, Pat Maddox <pergesu@gmail.com>:
>
> On 12/3/06, Gordon Thiesfeld <gthiesfeld@gmail.com> wrote:
> > > Is there a way to do this in Ruby?  I am aware of method(*args) and
> > > case...when but I think Java's version is cleaner and more
> readable.  I
> > > also know that variables in Ruby are dynamically typed, the method
> that
> > > is called should be based on the most recent type of the variable
> being
> > > passed.
> >
> > What about this?
> >
> > class String
> >   def foo
> >     puts 'String'
> >   end
> > end
> >
> > class Numeric
> >   def foo
> >     puts 'Numeric'
> >   end
> > end
> >
> > x1 = 1
> > x2 = 'string'
> >
> > x1.foo
> > x2.foo
>
> EXACTLY
>
> If you want different types of objects to perform different behavior
> for the same method call, you use polymorphism.  What OP wants to do
> is essentially a design pattern for providing polymorphism
> capabilities to a language that doesn't have them built in.
>
> Pat
>
>

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