Visitor example

[DMS-CPP]

Could you please provide a short example for how to use traverser::Visitor? I'm not sure how to match for &mut dyn Node cases when traversing the AST

[ryangjchandler]

Hey @DMS-CPP, what sort of thing are you trying to do with the Visitor exactly? I might be able to provide some more specific help.

The README / docs need updating once I've tagged another release.

[DMS-CPP]

I'm just not sure how I could traverse the AST with the Visitor and call different functions for some kind of Nodes. Some practical examples for Visitor would be very helpful. For example if it could be used to find a pattern and modify the AST

[ryangjchandler]

The crate provides a downcast() method and downcast_mut() method which can be used to convert the trait object into a struct or enum.

I'll provide some examples when I'm at my laptop as part of the README.