Looks like the parser interpreter class as part of the templates to compute ambiguous parse trees needs to be updated to have the semantic predicates evaluated. By default the semantic predicates are not being evaluated because the default for a Recognizer is to just return true.
Looks like the parser interpreter class as part of the templates to compute ambiguous parse trees needs to be updated to have the semantic predicates evaluated. By default the semantic predicates are not being evaluated because the default for a Recognizer is to just return true.