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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: 16 Dec 2002
* SUMMARY: Testing |with (x) {function f() {}}| when |x.f| already exists
* See http://bugzilla.mozilla.org/show_bug.cgi?id=185485
*
* The idea is this: if |x| does not already have a property named |f|,
* a |with| statement cannot be used to define one. See, for example,
*
* http://bugzilla.mozilla.org/show_bug.cgi?id=159849#c11
* http://bugzilla.mozilla.org/show_bug.cgi?id=184107
*
*
* However, if |x| already has a property |f|, a |with| statement can be
* used to modify the value it contains:
*
* with (x) {f = 1;}
*
* This should work even if we use a |var| statement, like this:
*
* with (x) {var f = 1;}
*
* However, it should NOT work if we use a |function| statement, like this:
*
* with (x) {function f() {}}
*
* Instead, this should newly define a function f in global scope.
* See http://bugzilla.mozilla.org/show_bug.cgi?id=185485
*
*/
//-----------------------------------------------------------------------------
var UBound = 0;
var BUGNUMBER = 185485;
var summary = 'Testing |with (x) {function f() {}}| when |x.f| already exists';
var status = '';
var statusitems = [];
var actual = '';
var actualvalues = [];
var expect= '';
var expectedvalues = [];
var x = { f:0, g:0 };
with (x)
{
f = 1;
}
status = inSection(1);
actual = x.f;
expect = 1;
addThis();
with (x)
{
var f = 2;
}
status = inSection(2);
actual = x.f;
expect = 2;
addThis();
/*
* Use of a function statement under the with-block should not affect
* the local property |f|, but define a function |f| in global scope -
*/
with (x)
{
function f() {}
}
status = inSection(3);
actual = x.f;
expect = 2;
addThis();
status = inSection(4);
actual = typeof this.f;
expect = 'function';
addThis();
/*
* Compare use of function expression instead of function statement.
* Note it is important that |x.g| already exists. Otherwise, this
* would newly define |g| in global scope -
*/
with (x)
{
var g = function() {}
}
status = inSection(5);
actual = x.g.toString();
expect = (function() {}).toString();
addThis();
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function addThis()
{
statusitems[UBound] = status;
actualvalues[UBound] = actual;
expectedvalues[UBound] = expect;
UBound++;
}
function test()
{
printBugNumber(BUGNUMBER);
printStatus(summary);
for (var i=0; i<UBound; i++)
{
reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
}
}
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