Antlr adding additional parameters to visit methods, accommodations for continuation passing style

Question

I am trying to do continuation passing style for a simple programming language made with antlr. Typically you would have an eval procedure that takes as arguments the expression to be evaluated as well as the continuation of that expression. I guess it would be quite elegant to add an additional continuation parameter to the visitor's visit methods (or for the listener).

However, when I generate the parser code with the antlr jar, the visit methods only take one parameter, namely the context (i.e., the tree).

So my question is, how can I add additional parameters to the visit methods such that I get this:

/**
 * {@inheritDoc}
 *
 * <p>The default implementation does nothing.</p>
 */
@Override public void enterStart(Parser.StartContext ctx, Continuation cnt) { }

Instead of the currently auto generated code:

/**
 * {@inheritDoc}
 *
 * <p>The default implementation does nothing.</p>
 */
@Override public void enterStart(Parser.StartContext ctx) { }

If it is not possible to add additional parameters to the visitor's visit methods, how would one accommodate the continuation passing style in antlr?

Thanks a lot!

Answer 1

ow can I add additional parameters to the visit methods

You cannot add any parameters to enter..., exit... or visit... methods.