retval.g = factory.build_Aoptional(bg); retval.g.left.setDescription(grammar.grammarTreeToString(((GrammarAST)retval.start), false));
retval.g = factory.build_Aoptional(bg); retval.g.left.setDescription(grammar.grammarTreeToString(((GrammarAST)retval.start), false));
g = factory.build_Aoptional(b); g.left.setDescription(grammar.grammarTreeToString(ebnf_AST_in,false));