/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * 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,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

/**

 * JDK-8195829 : Parsing a nameless ES6 class results in a thrown NullPointerException.

 *

 * @test

 * @run

 */

var Parser = Java.type("jdk.nashorn.api.tree.Parser");

var SimpleTreeVisitor = Java.type("jdk.nashorn.api.tree.SimpleTreeVisitorES6");

var parser = Parser.create("--language=es6"); 

var ast = parser.parse("test.js", "(class {});", print);

var reachedClassExpr = false;

ast.accept(new (Java.extend(SimpleTreeVisitor)) {

    visitClassExpression: function(node, extra) {

        reachedClassExpr = true;

        Assert.assertTrue(node.name === null);

    }

}, null);

Assert.assertTrue(reachedClassExpr);