[Pharo-users] help with understanding the visitor pattern

[Roelof Wobben via Pharo-users]

--- Begin Message ---

Hello,

Im busy with this project: https://github.com/RoelofWobben/Die

Now I also want to try to add a DieHandler and a Die together.
And I heared you can use the visitor pattern to solve this.

As far as  I understand the pattern I have to make a new class which contains only the + method.

But I fail to understand to see how I can make a difference between the + of a Die and the + of a DieHandler.

So can someone help me understand this pattern and maybe learn me step by step how to implement this in my code.

Regards,

Roelof

--- End Message ---