There doesn't currently seem to be an tests or anything in the spec
about doing this. This seems like it would be a useful feature for
classes to be able to do. It would be useful for any case where you
wanted to extend a function rather than completely replace it.
Currently, (as far as I can tell) in parrot if you override a method
in a subclass you can no longer call methods from the parent. It would
be useful to be able to explicitly call a method from a parent. This
would also be useful in a the same context with roles.
In perl 6 it would be something along the lines of: (here is this code
in gist form, http://gist.github.com/165247 )
class A {
method foo { say 'A::test'; }
}
class B is A {
method foo {
self.A::foo;
say 'but also B::foo';
}
}
my B $b .= new;
$b.foo;
I currently have not been able to find an example of how this would
work in parrot itself. When you try to do this in perl you get an
error message saying "Method 'A::foo' not found for invocant of class
'B'" which is a parrot level error message. Thats why I am asking in
here, not in the perl 6 development mailing list.
Thanks,
John
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