How can Antlr handle continuation passing style by incorporating extra parameters into its visit methods?

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Antlr can handle continuation passing style by incorporating extra parameters into its visit methods as follows:

1. Create an interface for the continuation that will be passed to the visit method.

2. Modify the signature of the visit method to include the continuation as a parameter.

3. Inside the visit method, after handling the current node, call the continuation with the appropriate arguments.

4. When visiting child nodes, pass the continuation down to the next visit method.

By passing the continuation as an extra parameter to each visit method, Antlr can build a chain of continuations that will be called whenever a node is processed, allowing for a flexible and modular approach to handling language constructs. This technique can also simplify the implementation of complex grammar rules that would otherwise require multiple nested if-else statements.