The Tor Browser: js/src/tests/ecma_3/Function/call-001.js@6474c204b198 (annotated)

js/src/tests/ecma_3/Function/call-001.js@6474c204b198 (annotated)

js/src/tests/ecma_3/Function/call-001.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

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

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*
  * Date: 2001-07-13
  *
  * SUMMARY: Applying Function.prototype.call to the Function object itself
  *
  *
  * ECMA-262 15.3.4.4 Function.prototype.call (thisArg [,arg1 [,arg2,…] ] )
  *
  * When applied to the Function object itself, thisArg should be ignored.
  * As explained by Waldemar (waldemar@netscape.com):
  *
  * Function.call(obj, "print(this)") is equivalent to invoking
  * Function("print(this)") with this set to obj. Now, Function("print(this)")
  * is equivalent to new Function("print(this)") (see 15.3.1.1), and the latter
  * ignores the this value that you passed it and constructs a function
  * (which we'll call F) which will print the value of the this that will be
  * passed in when F will be invoked.
  *
  * With the last set of () you're invoking F(), which means you're calling it
  * with no this value. When you don't provide a this value, it defaults to the
  * global object.
  *
  */
 //-----------------------------------------------------------------------------
 var UBound = 0;
 var BUGNUMBER = '(none)';
 var summary = 'Applying Function.prototype.call to the Function object itself';
 var status = '';
 var statusitems = [];
 var actual = '';
 var actualvalues = [];
 var expect= '';
 var expectedvalues = [];
 var self = this; // capture a reference to the global object
 var cnOBJECT_GLOBAL = self.toString();
 var cnOBJECT_OBJECT = (new Object).toString();
 var cnHello = 'Hello';
 var cnRed = 'red';
 var objTEST = {color:cnRed};
 var f = new Function();
 var g = new Function();
 f = Function.call(self, 'return cnHello');
 g = Function.call(objTEST, 'return cnHello');
 status = 'Section A of test';
 actual = f();
 expect = cnHello;
 captureThis();
 status = 'Section B of test';
 actual = g();
 expect = cnHello;
 captureThis();
 f = Function.call(self, 'return this.toString()');
 g = Function.call(objTEST, 'return this.toString()');
 status = 'Section C of test';
 actual = f();
 expect = cnOBJECT_GLOBAL;
 captureThis();
 status = 'Section D of test';
 actual = g();
 expect = cnOBJECT_GLOBAL;
 captureThis();
 f = Function.call(self, 'return this.color');
 g = Function.call(objTEST, 'return this.color');
 status = 'Section E of test';
 actual = f();
 expect = undefined;
 captureThis();
 status = 'Section F of test';
 actual = g();
 expect = undefined;
 captureThis();
 //-----------------------------------------------------------------------------
 test();
 //-----------------------------------------------------------------------------
 function captureThis()
 {
   statusitems[UBound] = status;
   actualvalues[UBound] = actual;
   expectedvalues[UBound] = expect;
   UBound++;
 }
 function test()
 {
   enterFunc ('test');
   printBugNumber(BUGNUMBER);
   printStatus (summary);
   for (var i = 0; i < UBound; i++)
   {
     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
   }
   exitFunc ('test');
 }