The Tor Browser: js/src/tests/ecma_5/Function/arguments-caller-callee.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2  * Any copyright is dedicated to the Public Domain.

     3  * http://creativecommons.org/licenses/publicdomain/

     4  */

     6 var gTestfile = 'arguments-caller-callee.js';

     7 var BUGNUMBER = 514563;

     8 var summary = "arguments.caller and arguments.callee are poison pills in ES5";

    10 print(BUGNUMBER + ": " + summary);

    12 /**************

    13  * BEGIN TEST *

    14  **************/

    16 // behavior

    18 function expectTypeError(fun)

    19 {

    20   try

    21   {

    22     fun();

    23     throw new Error("didn't throw");

    24   }

    25   catch (e)

    26   {

    27     assertEq(e instanceof TypeError, true,

    28              "expected TypeError calling function" +

    29              ("name" in fun ? " " + fun.name : "") + ", instead got: " + e);

    30   }

    31 }

    33 function bar() { "use strict"; return arguments; }

    34 expectTypeError(function barCaller() { bar().caller; });

    35 expectTypeError(function barCallee() { bar().callee; });

    37 function baz() { return arguments; }

    38 assertEq(baz().callee, baz);

    41 // accessor identity

    43 function strictMode() { "use strict"; return arguments; }

    44 var canonicalTTE = Object.getOwnPropertyDescriptor(strictMode(), "caller").get;

    46 var args = strictMode();

    48 var argsCaller = Object.getOwnPropertyDescriptor(args, "caller");

    49 assertEq("get" in argsCaller, true);

    50 assertEq("set" in argsCaller, true);

    51 assertEq(argsCaller.get, canonicalTTE);

    52 assertEq(argsCaller.set, canonicalTTE);

    54 var argsCallee = Object.getOwnPropertyDescriptor(args, "callee");

    55 assertEq("get" in argsCallee, true);

    56 assertEq("set" in argsCallee, true);

    57 assertEq(argsCallee.get, canonicalTTE);

    58 assertEq(argsCallee.set, canonicalTTE);

    61 /******************************************************************************/

    63 if (typeof reportCompare === "function")

    64   reportCompare(true, true);

    66 print("All tests passed!");

The Tor Browser / file revision