Tue, 11 Oct 2016 12:07:47 -0700
Added tag jdk8u131-b00 for changeset 742cdd2928b6
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
attila@962 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
attila@962 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
attila@962 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
attila@962 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | */ |
aoqi@0 | 23 | |
aoqi@0 | 24 | /** |
aoqi@0 | 25 | * JDK-8044750: megamorphic getter for scope objects does not call __noSuchProperty__ hook |
aoqi@0 | 26 | * |
aoqi@0 | 27 | * @test |
sundar@1541 | 28 | * @fork |
sundar@1541 | 29 | * @option -Dnashorn.unstable.relink.threshold=16 |
aoqi@0 | 30 | * @run |
aoqi@0 | 31 | */ |
aoqi@0 | 32 | |
aoqi@0 | 33 | __noSuchProperty__ = function(name) { |
aoqi@0 | 34 | return 1; |
aoqi@0 | 35 | } |
aoqi@0 | 36 | |
aoqi@0 | 37 | function func(obj) { |
aoqi@0 | 38 | with(obj) { |
aoqi@0 | 39 | // this "foo" getter site becomes megamorphic |
aoqi@0 | 40 | // due to different 'with' scope objects. |
aoqi@0 | 41 | foo; |
aoqi@0 | 42 | } |
aoqi@0 | 43 | } |
aoqi@0 | 44 | |
sundar@1541 | 45 | var LIMIT = 20; // should be more than megamorphic threshold set via @option |
sundar@1541 | 46 | |
sundar@1541 | 47 | for (var i = 0; i < LIMIT; i++) { |
aoqi@0 | 48 | var obj = {}; |
aoqi@0 | 49 | obj.foo = i; |
aoqi@0 | 50 | obj[i] = i; |
aoqi@0 | 51 | func(obj); |
aoqi@0 | 52 | } |
aoqi@0 | 53 | |
aoqi@0 | 54 | // pass a 'with' scope object that does not have 'foo'. |
aoqi@0 | 55 | // callsite inside func should see __noSuchProperty__ |
aoqi@0 | 56 | // hook on global scope object. |
aoqi@0 | 57 | func({}); |
sundar@1541 | 58 | |
sundar@1541 | 59 | function checkFoo() { |
sundar@1541 | 60 | with({}) { |
sundar@1541 | 61 | try { |
sundar@1541 | 62 | foo; |
sundar@1541 | 63 | return true; |
sundar@1541 | 64 | } catch (e) { |
sundar@1541 | 65 | return false; |
sundar@1541 | 66 | } |
sundar@1541 | 67 | } |
sundar@1541 | 68 | } |
sundar@1541 | 69 | |
sundar@1541 | 70 | var oldNoSuchProperty = this.__noSuchProperty__; |
sundar@1541 | 71 | delete this.__noSuchProperty__; |
sundar@1541 | 72 | |
sundar@1541 | 73 | // keep deleting/restorting __noSuchProperty__ alternatively |
sundar@1541 | 74 | // to make "foo" access in checkFoo function megamorphic! |
sundar@1541 | 75 | |
sundar@1541 | 76 | for (var i = 0; i < LIMIT; i++) { |
sundar@1541 | 77 | // no __noSuchProperty__ and 'with' scope object has no 'foo' |
sundar@1541 | 78 | delete __noSuchProperty__; |
sundar@1541 | 79 | Assert.assertFalse(checkFoo(), "Expected false in iteration " + i); |
sundar@1541 | 80 | |
sundar@1541 | 81 | // __noSuchProperty__ is exists but 'with' scope object has no 'foo' |
sundar@1541 | 82 | this.__noSuchProperty__ = oldNoSuchProperty; |
sundar@1541 | 83 | Assert.assertTrue(checkFoo(), "Expected true in iteration " + i); |
sundar@1541 | 84 | } |