Visitor example

[thierrydecker]

Is there any example of a tree visitor implmentation subclassing TreeVisitor base class ?

Can't find any example in the documentation.

My first use case is a visitor returning me a list of the search fields present in a tree.

[alexgarel]

see https://github.com/jurismarches/luqum/blob/master/tests/test_visitor.py where you can see basic examples like MROVisitor

[alexgarel]

@thierrydecker if you want to add an example to the documentation, you are really welcome. But for now I will close this issue.