Generating AST in antlr4 v4.10.1

[CHETOSRODRIGUEZ]

Hi, my question is if i can to generate an AST in antlr4 WITH JAVA?
i only found that i can to generate a CST
TreeViewer viewr = new TreeViewer(rulesName,tree);
viewr.open();
but i wish an AST like the antlr2 version
IM USING VISITORS
Thank you!!!

[alessiostalla]

ANTLR4 doesn't directly generate an AST. However, you can use listeners or visitors to build an AST for you. If you don't want to start from scratch, you could use a library like Kolasu that provides the building blocks to develop an AST.