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// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
description(
"This tests that for/in statements behave correctly when cached."
);
function forIn1() {
var result = [];
var o = { x: 1 };
for (var p in o)
result.push(p);
return result;
}
forIn1();
Object.prototype.y = 2;
shouldBe("forIn1()", "['x', 'y']");
delete Object.prototype.y;
function forIn2() {
var result = [];
var o = { x: 1, __proto__: null };
for (var p in o)
result.push(p);
return result;
}
forIn2();
shouldBe("forIn2()", "['x']");
function forIn3(proto) {
var result = [];
var o = { x: 1, __proto__: proto };
for (var p in o)
result.push(p);
return result;
}
forIn3({ __proto__: { y1: 2 } });
forIn3({ __proto__: { y1: 2 } });
shouldBe("forIn3({ __proto__: { y1: 2 } })", "['x', 'y1']");
forIn3({ y2 : 2, __proto__: null });
forIn3({ y2 : 2, __proto__: null });
shouldBe("forIn3({ y2 : 2, __proto__: null })", "['x', 'y2']");
forIn3({ __proto__: { __proto__: { y3 : 2 } } });
forIn3({ __proto__: { __proto__: { y3 : 2 } } });
shouldBe("forIn3({ __proto__: { __proto__: { y3 : 2 } } })", "['x', 'y3']");
function forIn4(o) {
var result = [];
for (var p in o)
result.push(p);
return result;
}
var objectWithArrayAsProto = {};
objectWithArrayAsProto.__proto__ = [];
shouldBe("forIn4(objectWithArrayAsProto)", "[]");
objectWithArrayAsProto.__proto__[0]=1;
shouldBe("forIn4(objectWithArrayAsProto)", "['0']");
function forIn5(o) {
for (var i in o)
return [i, o[i]];
}
shouldBe("forIn5({get foo() { return 'called getter'} })", "['foo', 'called getter']");
shouldBe("forIn5({set foo(v) { } })", "['foo', undefined]");
shouldBe("forIn5({get foo() { return 'called getter'}, set foo(v) { }})", "['foo', 'called getter']");
function cacheClearing() {
for(var j=0; j < 10; j++){
var o = {a:1,b:2,c:3,d:4,e:5}
try {for (i in o) { delete o.a; o = null; throw "" };}finally{continue}
}
}
cacheClearing()
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