Visitor pattern: Difference between revisions

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=={{header|Python}}==
=={{header|Python}}==


This is based in the [[wp:Visitor_pattern|Wikipedia]] Python example, but uses structural pattern matching instead of multiple visit methods.
This is based on the [[wp:Visitor_pattern|Wikipedia]] Python example, but uses structural pattern matching instead of multiple visit methods.


<syntaxhighlight lang="python">
<syntaxhighlight lang="python">
Retrieved from "https://rosettacode.org/wiki/Visitor_pattern"