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Interesting - I'd never thought about using a visitor with overloading to achieve polymorphism. Would this overload correctly at runtime though?

the_mandrill
– the_mandrill

2013-02-01 14:30:00 +00:00
Commented Feb 1, 2013 at 14:30
Yes it would overload correctly. See edited answer

hotpotato
– hotpotato

2013-02-01 14:36:54 +00:00
Commented Feb 1, 2013 at 14:36
I can see that this works. It's a shame though that each derived class has to implement the visit() method.

the_mandrill
– the_mandrill

2013-02-01 15:21:36 +00:00
Commented Feb 1, 2013 at 15:21
This prompted me to do a bit more searching and I've now found the implementation of Loki's Visitor pattern which seems to be exactly what I'm looking for! I was familiar with the visitor pattern in terms of visiting nodes in trees, but hadn't thought of it in a more abstract manner.

the_mandrill
– the_mandrill

2013-02-04 14:48:04 +00:00
Commented Feb 4, 2013 at 14:48

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