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/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
// The Worker constructor can take a relative URL, but different test runners
// run in different enough environments that it doesn't all just automatically
// work. For the shell, we use just a filename; for the browser, see browser.js.
var workerDir = '';
// explicitly turn on js185
// XXX: The browser currently only supports up to version 1.8
if (typeof version != 'undefined')
{
version(185);
}
// Assert that cloning b does the right thing as far as we can tell.
// Caveat: getters in b must produce the same value each time they're
// called. We may call them several times.
//
// If desc is provided, then the very first thing we do to b is clone it.
// (The self-modifying object test counts on this.)
//
function clone_object_check(b, desc) {
function classOf(obj) {
return Object.prototype.toString.call(obj);
}
function ownProperties(obj) {
return Object.getOwnPropertyNames(obj).
map(function (p) { return [p, Object.getOwnPropertyDescriptor(obj, p)]; });
}
function isCloneable(pair) {
return typeof pair[0] === 'string' && pair[1].enumerable;
}
function notIndex(p) {
var u = p >>> 0;
return !("" + u == p && u != 0xffffffff);
}
function assertIsCloneOf(a, b, path) {
assertEq(a === b, false);
var ca = classOf(a);
assertEq(ca, classOf(b), path);
assertEq(Object.getPrototypeOf(a),
ca == "[object Object]" ? Object.prototype : Array.prototype,
path);
// 'b', the original object, may have non-enumerable or XMLName
// properties; ignore them. 'a', the clone, should not have any
// non-enumerable properties (except .length, if it's an Array) or
// XMLName properties.
var pb = ownProperties(b).filter(isCloneable);
var pa = ownProperties(a);
for (var i = 0; i < pa.length; i++) {
assertEq(typeof pa[i][0], "string", "clone should not have E4X properties " + path);
if (!pa[i][1].enumerable) {
if (Array.isArray(a) && pa[i][0] == "length") {
// remove it so that the comparisons below will work
pa.splice(i, 1);
i--;
} else {
throw new Error("non-enumerable clone property " + uneval(pa[i][0]) + " " + path);
}
}
}
// Check that, apart from properties whose names are array indexes,
// the enumerable properties appear in the same order.
var aNames = pa.map(function (pair) { return pair[1]; }).filter(notIndex);
var bNames = pa.map(function (pair) { return pair[1]; }).filter(notIndex);
assertEq(aNames.join(","), bNames.join(","), path);
// Check that the lists are the same when including array indexes.
function byName(a, b) { a = a[0]; b = b[0]; return a < b ? -1 : a === b ? 0 : 1; }
pa.sort(byName);
pb.sort(byName);
assertEq(pa.length, pb.length, "should see the same number of properties " + path);
for (var i = 0; i < pa.length; i++) {
var aName = pa[i][0];
var bName = pb[i][0];
assertEq(aName, bName, path);
var path2 = path + "." + aName;
var da = pa[i][1];
var db = pb[i][1];
assertEq(da.configurable, true, path2);
assertEq(da.writable, true, path2);
assertEq("value" in da, true, path2);
var va = da.value;
var vb = b[pb[i][0]];
if (typeof va === "object" && va !== null)
queue.push([va, vb, path2]);
else
assertEq(va, vb, path2);
}
}
var banner = "while testing clone of " + (desc || uneval(b));
var a = deserialize(serialize(b));
var queue = [[a, b, banner]];
while (queue.length) {
var triple = queue.shift();
assertIsCloneOf(triple[0], triple[1], triple[2]);
}
return a; // for further testing
}
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