Source code
Revision control
Copy as Markdown
Other Tools
/*
* Any copyright is dedicated to the Public Domain.
*/
// Don't use .call(...) in the self-hosted Set.prototype.forEach
var functionCall = Function.prototype.call;
function throwSyntaxError()
{
throw new SyntaxError("Function.prototype.call incorrectly called");
}
function lalala() {}
Function.prototype.call = throwSyntaxError;
new Set().forEach(throwSyntaxError);
new Set([1]).forEach(lalala);
new Set([{}, 4]).forEach(lalala);
Function.prototype.call = function() { this.add(3.141592654); };
new Set().forEach(throwSyntaxError);
new Set(["foo"]).forEach(lalala);
new Set([undefined, NaN]).forEach(lalala);
var callCount = 0;
Function.prototype.call = function() { callCount++; };
new Set().forEach(throwSyntaxError);
new Set([new Number]).forEach(lalala);
new Set([true, new Boolean(false)]).forEach(lalala);
assertEq(callCount, 0);