test/nashorn/src/jdk/nashorn/test/nashorn/models/ES6ASTVisitor.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.nashorn.test.models;

import jdk.nashorn.api.tree.SimpleTreeVisitorES6;
import jdk.nashorn.api.tree.*;

public class ES6ASTVisitor{

        public static void visit(String script) {
                DiagnosticListener listener = (Diagnostic diag) -> { System.err.println(diag.toString()); };
                Parser parser = Parser.create("--language=es6","--empty-statements");
                Tree astRoot = parser.parse("unknown", script, listener);
                astRoot.accept(new SimpleTreeVisitorES6<Boolean, Void>() {
                        @Override
                        public Boolean visitCompilationUnit(CompilationUnitTree stmt, Void none) {
                                for (Tree item : stmt.getSourceElements()) {
                                        System.out.println(item.getStartPosition() + "-" + item.getEndPosition() + " " + item.getKind());
                                }
                                return super.visitCompilationUnit(stmt, none);
                        }

                }, null);

        }

}