Re: Is there any way to dynamically add a method to a class?

[Joseph Ryan]

Dan Sugalski wrote:

On Mon, 25 Aug 2003, Joseph Ryan wrote:

 

So, I know how to use find_method to get a method from an object;
but is there any way to dynamically add a method to a class?
Basically, I want to do something like this:
   newclass P2, "Foo"
   new P1, P2
   
   addr I0, _Foo::somemethod
   setmethod P1, "somemethod", I0
   findmethod P0, P1, "somemethod"
   invoke

So, how do I do it? :)  
   

What's supposed to happen is that each class has a backing namespace, and 
methods all live in that namespace. Generally objects, no matter what 
their HLL class, will be PMCs that have subclassed (at the parrot level) 
ParrotObject.

Anyway, for a perl/python/ruby object of class Foo, to add a new method 
you'd just add a new sub/method name/PMC binding to the Foo namespace.

I'm a bit lost here; what does that mean?  How do I do it?  Does

   .sub _Foo::somemethod
       print "Foo-ey goodness."
   .end
add "somemethod" to the "Foo" namespace?  Or would it have to be:

   .sub Foo::somemethod
       print "Foo-ey goodness."
   .end
Thanks for the reply,

- Joe