Antlr4 visitors and members

Question

I'm currently investigating ANTLR4 , and I'm struggling a bit to find information on how the visitors are used. The following page: http://www.antlr.org/wiki/display/ANTLR4/Parser+Rules and reading though the ANTLR generaged files in my little dummy project, leaves me with the following questions

• how do I access the fields of the parser in the listener? For example, if i use @members {int mynumber = 0;} in the grammer, how can I access this within a method of the listener implementation?

• Can anybody point me to a small example, targeted at somebody fairly new to antlr which uses visitors?

Answer 1

This example by Bart Kiers really helped me: If/else statements in ANTLR using listeners

There's more info if you grab the example source files: https://github.com/bkiers/Mu