aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
attila@962:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
attila@962:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
attila@962:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
attila@962:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * JDK-8044750: megamorphic getter for scope objects does not call __noSuchProperty__ hook
aoqi@0:  *
aoqi@0:  * @test
sundar@1541:  * @fork
sundar@1541:  * @option -Dnashorn.unstable.relink.threshold=16
aoqi@0:  * @run
aoqi@0:  */
aoqi@0: 
aoqi@0: __noSuchProperty__ = function(name) {
aoqi@0:     return 1;
aoqi@0: }
aoqi@0: 
aoqi@0: function func(obj) {
aoqi@0:     with(obj) {
aoqi@0:         // this "foo" getter site becomes megamorphic
aoqi@0:         // due to different 'with' scope objects.
aoqi@0:         foo;
aoqi@0:     }
aoqi@0: }
aoqi@0: 
sundar@1541: var LIMIT = 20; // should be more than megamorphic threshold set via @option
sundar@1541: 
sundar@1541: for (var i = 0; i < LIMIT; i++) {
aoqi@0:     var obj = {};
aoqi@0:     obj.foo = i;
aoqi@0:     obj[i] = i;
aoqi@0:     func(obj);
aoqi@0: }
aoqi@0: 
aoqi@0: // pass a 'with' scope object that does not have 'foo'.
aoqi@0: // callsite inside func should see __noSuchProperty__
aoqi@0: // hook on global scope object.
aoqi@0: func({});
sundar@1541: 
sundar@1541: function checkFoo() {
sundar@1541:     with({}) {
sundar@1541:         try {
sundar@1541:             foo;
sundar@1541:             return true;
sundar@1541:         } catch (e) {
sundar@1541:             return false;
sundar@1541:         }
sundar@1541:     }
sundar@1541: }
sundar@1541: 
sundar@1541: var oldNoSuchProperty = this.__noSuchProperty__;
sundar@1541: delete this.__noSuchProperty__;
sundar@1541: 
sundar@1541: // keep deleting/restorting __noSuchProperty__ alternatively
sundar@1541: // to make "foo" access in checkFoo function megamorphic!
sundar@1541: 
sundar@1541: for (var i = 0; i < LIMIT; i++) {
sundar@1541:     // no __noSuchProperty__ and 'with' scope object has no 'foo'
sundar@1541:     delete __noSuchProperty__;
sundar@1541:     Assert.assertFalse(checkFoo(), "Expected false in iteration " + i);
sundar@1541: 
sundar@1541:     // __noSuchProperty__ is exists but 'with' scope object has no 'foo'
sundar@1541:     this.__noSuchProperty__ = oldNoSuchProperty;
sundar@1541:     Assert.assertTrue(checkFoo(), "Expected true in iteration " + i);
sundar@1541: }