74 lines
2.1 KiB
JavaScript
74 lines
2.1 KiB
JavaScript
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* JDK-8136694: Megemorphic scope access does not throw ReferenceError when property is missing
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*
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* @test
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* @option --unstable-relink-threshold=16
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* @run
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*/
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function checkFoo() {
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try {
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// The 'foo' access becomes megamorphic
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foo;
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return true;
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} catch (e) {
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return false;
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}
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}
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// Similar check for 'with' blocks as well.
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function checkFooInWith() {
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with({}) {
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try {
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// The 'foo' access becomes megamorphic
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foo;
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return true;
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} catch (e) {
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return false;
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}
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}
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}
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function loop(checker) {
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// LIMIT has to be more than the megamorphic threashold
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// set via @option in this test header!
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var LIMIT = 20;
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for (var i = 0; i < LIMIT; i++) {
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// make sure global has no "foo"
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delete foo;
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Assert.assertFalse(checker(), "Expected false in interation " + i);
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// now add 'foo' in global
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foo = 44;
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Assert.assertTrue(checker(), "Expected true in interation " + i);
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}
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}
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loop(checkFoo);
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loop(checkFooInWith);
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