1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.nashorn.test.models;
  27 
  28 import jdk.nashorn.api.tree.SimpleTreeVisitorES6;
  29 import jdk.nashorn.api.tree.*;
  30 
  31 public class ES6ASTVisitor{
  32 
  33         public static void visit(String script) {
  34                 DiagnosticListener listener = (Diagnostic diag) -> { System.err.println(diag.toString()); };
  35                 Parser parser = Parser.create("--language=es6","--empty-statements");
  36                 Tree astRoot = parser.parse("unknown", script, listener);
  37                 astRoot.accept(new SimpleTreeVisitorES6<Boolean, Void>() {
  38                         @Override
  39                         public Boolean visitCompilationUnit(CompilationUnitTree stmt, Void none) {
  40                                 for (Tree item : stmt.getSourceElements()) {
  41                                         System.out.println(item.getStartPosition() + "-" + item.getEndPosition() + " " + item.getKind());
  42                                 }
  43                                 return super.visitCompilationUnit(stmt, none);
  44                         }
  45 
  46                 }, null);
  47 
  48         }
  49 
  50 }
  51