gecko/js/tests/js1_7/extensions/destructuring-order.js

184 lines
4.7 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 bug = "(none)";
var summary = "Order of destructuring, destructuring in the presence of " +
"exceptions";
var actual, expect;
printBugNumber(bug);
printStatus(summary);
/**************
* BEGIN TEST *
**************/
var failed = false;
var a = "FAILED", b = "PASSED";
function exceptObj()
{
return { get b() { throw "PASSED"; }, a: "PASSED" };
}
function partialEvalObj()
{
try
{
({a:a, b:b}) = exceptObj();
throw "FAILED";
}
catch (ex)
{
if (ex !== "PASSED")
throw "bad exception thrown: " + ex;
}
}
var c = "FAILED", d = "FAILED", e = "PASSED", f = "PASSED";
function exceptArr()
{
return ["PASSED", {e: "PASSED", get f() { throw "PASSED"; }}, "FAILED"];
}
function partialEvalArr()
{
try
{
[c, {e: d, f: e}, f] = exceptArr();
throw "FAILED";
}
catch (ex)
{
if (ex !== "PASSED")
throw "bad exception thrown: " + ex;
}
}
var g = "FAILED", h = "FAILED", i = "FAILED", j = "FAILED", k = "FAILED";
var _g = "PASSED", _h = "FAILED", _i = "FAILED", _j = "FAILED", _k = "FAILED";
var order = [];
function objWithGetters()
{
return {
get j()
{
var rv = _j;
_g = _h = _i = _j = "FAILED";
_k = "PASSED";
order.push("j");
return rv;
},
get g()
{
var rv = _g;
_g = _i = _j = _k = "FAILED";
_h = "PASSED";
order.push("g");
return rv;
},
get i()
{
var rv = _i;
_g = _h = _i = _k = "FAILED";
_j = "PASSED";
order.push("i");
return rv;
},
get k()
{
var rv = _k;
_g = _h = _i = _j = _k = "FAILED";
order.push("k");
return rv;
},
get h()
{
var rv = _h;
_g = _h = _j = _k = "FAILED";
_i = "PASSED";
order.push("h");
return rv;
}
};
}
function partialEvalObj2()
{
({g: g, h: h, i: i, j: j, k: k}) = objWithGetters();
}
try
{
partialEvalObj();
if (a !== "PASSED" || b !== "PASSED")
throw "FAILED: lhs not mutated correctly during destructuring!\n" +
"a == " + a + ", b == " + b;
partialEvalObj2();
if (g !== "PASSED" ||
h !== "PASSED" ||
i !== "PASSED" ||
j !== "PASSED" ||
k !== "PASSED")
throw "FAILED: order of property accesses wrong!\n" +
"order == " + order;
partialEvalArr();
if (c !== "PASSED" || d !== "PASSED" || e !== "PASSED")
throw "FAILED: lhs not mutated correctly during destructuring!\n" +
"c == " + c +
", d == " + d +
", e == " + e +
", f == " + f ;
}
catch (ex)
{
failed = ex;
}
expect = false;
actual = failed;
reportCompare(expect, actual, summary);