jdk8-mips64-public/nashorn: test/script/basic/JDK-8136694.js@1df40fe54cd6

     1 /*

     2  * Copyright (c) 2015, 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.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /**

    25  * JDK-8136694: Megemorphic scope access does not throw ReferenceError when property is missing

    26  *

    27  * @test

    28  * @fork

    29  * @option -Dnashorn.unstable.relink.threshold=16

    30  * @run

    31  */

    33 function checkFoo() {

    34     try {

    35         // The 'foo' access becomes megamorphic

    36         foo;

    37         return true;

    38     } catch (e) {

    39         return false;

    40     }

    41 }

    44 // Similar check for 'with' blocks as well.

    45 function checkFooInWith() {

    46     with({}) {

    47         try {

    48             // The 'foo' access becomes megamorphic

    49             foo;

    50             return true;

    51         } catch (e) {

    52             return false;

    53         }

    54     }

    55 }

    57 function loop(checker) {

    58     // LIMIT has to be more than the megamorphic threashold

    59     // set via @option in this test header!

    60     var LIMIT = 20;

    61     for (var i = 0; i < LIMIT; i++) {

    62         // make sure global has no "foo"

    63         delete foo;

    64         Assert.assertFalse(checker(), "Expected false in interation " + i);

    66         // now add 'foo' in global

    67         foo = 44;

    68         Assert.assertTrue(checker(), "Expected true in interation " + i);

    69     }

    70 }

    73 loop(checkFoo);

    74 loop(checkFooInWith);

Mercurial > jdk8-mips64-public > nashorn / file revision