Delegating and defining a method at the same time

What is supposed to happen if one says:

class Dog {

   has $:tail handles 'wag';

   meth wag { # something else than $:tail.wag
   }
}

Is it a compilation error? Or one of the definitions prevail (with a
warning or something)?

Adriano Ferreira.

• Delegating and defining a method at the same time by Adriano Ferreira