/* * Copyright (c) 2015, 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. * * 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 * or visit www.oracle.com if you need additional information or have any * questions. */ /** * JDK-8136694: Megemorphic scope access does not throw ReferenceError when property is missing * * @test * @option --unstable-relink-threshold=16 * @run */ function checkFoo() { try { // The 'foo' access becomes megamorphic foo; return true; } catch (e) { return false; } } // Similar check for 'with' blocks as well. function checkFooInWith() { with({}) { try { // The 'foo' access becomes megamorphic foo; return true; } catch (e) { return false; } } } function loop(checker) { // LIMIT has to be more than the megamorphic threashold // set via @option in this test header! var LIMIT = 20; for (var i = 0; i < LIMIT; i++) { // make sure global has no "foo" delete foo; Assert.assertFalse(checker(), "Expected false in interation " + i); // now add 'foo' in global foo = 44; Assert.assertTrue(checker(), "Expected true in interation " + i); } } loop(checkFoo); loop(checkFooInWith);