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
|
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
//-----------------------------------------------------------------------------
var BUGNUMBER = 987243;
var summary = "Don't use .call(...) in the self-hosted Map.prototype.forEach";
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
var functionCall = Function.prototype.call;
function throwSyntaxError()
{
throw new SyntaxError("Function.prototype.call incorrectly called");
}
function lalala() {}
Function.prototype.call = throwSyntaxError;
new Map().forEach(throwSyntaxError);
new Map([[1, 2]]).forEach(lalala);
new Map([[1, 2], [3, 4]]).forEach(lalala);
Function.prototype.call = function() { this.set(42, "fnord"); };
new Map().forEach(throwSyntaxError);
new Map([[1, 2]]).forEach(lalala);
new Map([[1, 2], [3, 4]]).forEach(lalala);
var callCount = 0;
Function.prototype.call = function() { callCount++; };
new Map().forEach(throwSyntaxError);
new Map([[1, 2]]).forEach(lalala);
new Map([[1, 2], [3, 4]]).forEach(lalala);
assertEq(callCount, 0);
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("Tests complete");
|