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/*
* Copyright (c) 2014, 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-8044750: megamorphic getter for scope objects does not call __noSuchProperty__ hook
*
* @test
* @fork
* @option -Dnashorn.unstable.relink.threshold=16
* @run
*/
__noSuchProperty__ = function(name) {
return 1;
}
function func(obj) {
with(obj) {
// this "foo" getter site becomes megamorphic
// due to different 'with' scope objects.
foo;
}
}
var LIMIT = 20; // should be more than megamorphic threshold set via @option
for (var i = 0; i < LIMIT; i++) {
var obj = {};
obj.foo = i;
obj[i] = i;
func(obj);
}
// pass a 'with' scope object that does not have 'foo'.
// callsite inside func should see __noSuchProperty__
// hook on global scope object.
func({});
function checkFoo() {
with({}) {
try {
foo;
return true;
} catch (e) {
return false;
}
}
}
var oldNoSuchProperty = this.__noSuchProperty__;
delete this.__noSuchProperty__;
// keep deleting/restorting __noSuchProperty__ alternatively
// to make "foo" access in checkFoo function megamorphic!
for (var i = 0; i < LIMIT; i++) {
// no __noSuchProperty__ and 'with' scope object has no 'foo'
delete __noSuchProperty__;
Assert.assertFalse(checkFoo(), "Expected false in iteration " + i);
// __noSuchProperty__ is exists but 'with' scope object has no 'foo'
this.__noSuchProperty__ = oldNoSuchProperty;
Assert.assertTrue(checkFoo(), "Expected true in iteration " + i);
}
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