gecko/js/tests/js1_7/block/order-of-operation.js

171 lines
3.9 KiB
JavaScript
Executable File

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is JavaScript Engine testing utilities.
*
* The Initial Developer of the Original Code is
* Jeff Walden <jwalden+code@mit.edu>.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
var gTestfile = 'order-of-operation.js';
//-----------------------------------------------------------------------------
var BUGNUMBER = "(none)";
var summary = "Test let and order of operation issues";
var actual, expect;
printBugNumber(BUGNUMBER);
printStatus(summary);
/**************
* BEGIN TEST *
**************/
var failed = false;
function f1(x)
{
// scope of lhs x includes rhs, so x is NaN here -- bug 344952
let x = ++x;
return x;
}
function f2(x)
{
// scope of lhs x includes rhs, so x is NaN here -- bug 344952
let x = x++;
return x;
}
function f3(x)
{
var q = x;
let (x = x++)
{
if (x != q)
throw "f3():\n" +
" expected: x == q\n" +
" actual: x != q " +
"(where x == " + x + ", q == " + q + ")\n";
}
return x;
}
function f4(x)
{
var y = 7;
let (y = x, x = 3)
{
var q = 7 + x;
}
return x + y + q;
}
function f5(x)
{
var q = x++;
let (y = x, r = 17, m = 32) {
return function(code)
{
return eval(code);
};
}
}
function f6() {
var i=3;
for (let i=i;;) { if (i != 3) throw "fail"; i = 7; break; }
if (i != 3) throw "fail";
}
try
{
var rv = f1(5);
if (!isNaN(rv))
throw "f1(5):\n" +
" expected: NaN\n" +
" actual: " + rv;
rv = f2(5);
if (!isNaN(rv))
throw "f2(5):\n" +
" expected: NaN\n" +
" actual: " + rv;
rv = f3(8);
if (rv != 9)
throw "f3(8):\n" +
" expected: 9\n" +
" actual: " + rv;
rv = f4(13);
if (rv != 30)
throw "f4(13):\n" +
" expected: 30\n" +
" actual: " + rv;
var fun = f5(2);
rv = fun("q");
if (rv != 2)
throw "fun('q'):\n" +
" expected: 2\n" +
" actual: " + rv;
rv = fun("x");
if (rv != 3)
throw "fun('x'):\n" +
" expected: 3\n" +
" actual: " + rv;
rv = fun("y");
if (rv != 3)
throw "fun('y'):\n" +
" expected: 3\n" +
" actual: " + rv;
rv = fun("let (y = y) { y += 32; }; y");
if (rv != 3)
throw "fun('let (y = y) { y += 32; }; y'):\n" +
" expected: 3\n" +
" actual: " + rv;
f6();
}
catch (e)
{
failed = e;
}
expect = false;
actual = failed;
reportCompare(expect, actual, summary);