scope-003.js - mozsearch

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/* -*- indent-tabs-mode: nil; js-indent-level: 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: 2001-07-03

 * SUMMARY:  Testing scope with nested functions

 * From correspondence with Christopher Oliver <coliver@mminternet.com>:

 * > Running this test with Rhino produces the following exception:

* >

 * > uncaught JavaScript exception: undefined: Cannot find default value for

 * > object. (line 3)

* >

 * > This is due to a bug in org.mozilla.javascript.NativeCall which doesn't

 * > implement toString or valueOf or override getDefaultValue.

 * > However, even after I hacked in an implementation of getDefaultValue in

 * > NativeCall, Rhino still produces a different result then SpiderMonkey:

* >

 * > [object Call]

 * > [object Object]

 * > [object Call]

 * Note the results should be:

 *   [object global]

 *   [object Object]

 *   [object global]

 * This is what we are checking for in this testcase -

*/

//-----------------------------------------------------------------------------

var UBound = 0;

var BUGNUMBER = '(none)';

var summary = 'Testing scope with nested functions';

var statprefix = 'Section ';

var statsuffix = ' of test -';

var self = this; // capture a reference to the global object;

var cnGlobal = self.toString();

var cnObject = (new Object).toString();

var statusitems = [];

var actualvalues = [];

var expectedvalues = [];

function a()

  function b()

    capture(this.toString());

  this.c = function()

      capture(this.toString());

      b();

  b();

var obj = new a();  // captures actualvalues[0]

obj.c();            // captures actualvalues[1], actualvalues[2]

// The values we expect - see introduction above -

expectedvalues[0] = cnGlobal;

expectedvalues[1] = cnObject;

expectedvalues[2] = cnGlobal;

//-----------------------------------------------------------------------------

test();

//-----------------------------------------------------------------------------

function capture(val)

  actualvalues[UBound] = val;

  statusitems[UBound] = getStatus(UBound);

  UBound++;

function test()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  for (var i=0; i<UBound; i++)

    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);

function getStatus(i)

  return statprefix + i + statsuffix;