antlr - Antlr4 Can I listen to my own visitor? -


  • i understand antlr generates tree walker , can sub-class baselistener act when tree walker traverses on key items in parse tree.
  • i understand can create own visitor, sub-class basevisitor navigate parse tree in own way.

can have listener responds own visitor?
think made boo-boo , placed application code unnecessarily in sub-classed visitor.

believe visitor should visit , listener should trigger events in application code.

think got little bit muddled in implementation.

sure. can create whatever listener interface want , create visitor fires events listener. it's pretty inefficient however. dump visitor , have standard tree walker fire events @ listener :)


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