Automatic antlr4-grammar generation aborted because of process.exit

[THMv1TU]

I need to generate the whole antlr4-grammar repo on demand and some are failing beecause of the javascript target. This is fine. However, the following line is aborting the whole generation.

antlr4-tool/src/antlr-core/antlr-compiler.ts

Line 131 in 5616999

process.exit(1);

Could you please change this to throw an exception and catch it in the cli, if someone wants to have the abortion?
It would be really helpful.
Anyway, thank you for that package :)