/*
 * 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);