| /* |
| * 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 |
| * @fork |
| * @option -Dnashorn.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); |