1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/// Copyright (c) 2009 Microsoft Corporation
///
/// Redistribution and use in source and binary forms, with or without modification, are permitted provided
/// that the following conditions are met:
/// * Redistributions of source code must retain the above copyright notice, this list of conditions and
/// the following disclaimer.
/// * 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.
/// * Neither the name of Microsoft nor the names of its contributors may be used to
/// endorse or promote products derived from this software without specific prior written permission.
///
/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT OWNER OR 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.
/**
* @path ch15/15.4/15.4.4/15.4.4.14/15.4.4.14-5-27.js
* @description Array.prototype.indexOf - side effects produced by step 3 are visible when an exception occurs
*/
function testcase() {
var stepThreeOccurs = false;
var stepFiveOccurs = false;
var obj = {};
Object.defineProperty(obj, "length", {
get: function () {
return {
valueOf: function () {
stepThreeOccurs = true;
if (stepFiveOccurs) {
throw new Error("Step 5 occurred out of order");
}
return 20;
}
};
},
configurable: true
});
var fromIndex = {
valueOf: function () {
stepFiveOccurs = true;
return 0;
}
};
try {
Array.prototype.indexOf.call(obj, undefined, fromIndex);
return stepThreeOccurs && stepFiveOccurs;
} catch (ex) {
return false;
}
}
runTestCase(testcase);
|
