Source code
Revision control
Copy as Markdown
Other Tools
/*
* Any copyright is dedicated to the Public Domain.
*/
//-----------------------------------------------------------------------------
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");