"Cannot generate Ruby code"

[camertron]

After a small change to the Makefile I was able to build antlr4-ruby.jar. However, when I try to use it to process a grammar file, I get an error message:

$> java -cp pkg/antlr4-ruby.jar:antlr4-4.7.jar:antlr4-runtime-4.7.jar:ST4-4.0.8.jar:antlr-runtime-3.5.2.jar org.antlr.v4.Tool -Dlanguage=Ruby input.g4
error(31):  ANTLR cannot generate Ruby code as of version 4.7

Any idea what's wrong? Thanks in advance!

[slaught]

I think it is this

antlr4-ruby/lib/antlr4/version.rb

Line 3 in 9324527

ANTLR_VERSION = '4.4'

[camertron]

@slaught thanks for your help :) Unfortunately I get the same message after modifying the ANTLR_VERSION constant and rebuilding the jar :(

I was however able to get it to work with ANTLR 4.4 as the constant suggests! 🎉

A couple of follow-up questions:

1. Is it possible to generate a visitor as well as a listener?
2. What problems prevented the code from being merged to master, and how can I help?

Thanks again!