mirror of https://github.com/tc39/test262.git
902 lines
25 KiB
JavaScript
902 lines
25 KiB
JavaScript
/// Copyright (c) 2012 Ecma International. All rights reserved.
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/// Ecma International makes this code available under the terms and conditions set
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/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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/// "Use Terms"). Any redistribution of this code must retain the above
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/// copyright and this notice and otherwise comply with the Use Terms.
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//-----------------------------------------------------------------------------
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function compareArray(aExpected, aActual) {
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if (aActual.length != aExpected.length) {
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return false;
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}
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aExpected.sort();
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aActual.sort();
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var s;
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for (var i = 0; i < aExpected.length; i++) {
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if (aActual[i] !== aExpected[i]) {
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return false;
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}
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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function arrayContains(arr, expected) {
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var found;
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for (var i = 0; i < expected.length; i++) {
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found = false;
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for (var j = 0; j < arr.length; j++) {
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if (expected[i] === arr[j]) {
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found = true;
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break;
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}
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}
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if (!found) {
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return false;
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}
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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var supportsArrayIndexGettersOnArrays = undefined;
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function fnSupportsArrayIndexGettersOnArrays() {
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if (typeof supportsArrayIndexGettersOnArrays !== "undefined") {
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return supportsArrayIndexGettersOnArrays;
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}
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supportsArrayIndexGettersOnArrays = false;
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if (fnExists(Object.defineProperty)) {
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var arr = [];
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Object.defineProperty(arr, "0", {
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get: function() {
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supportsArrayIndexGettersOnArrays = true;
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return 0;
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}
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});
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var res = arr[0];
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}
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return supportsArrayIndexGettersOnArrays;
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}
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//-----------------------------------------------------------------------------
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var supportsArrayIndexGettersOnObjects = undefined;
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function fnSupportsArrayIndexGettersOnObjects() {
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if (typeof supportsArrayIndexGettersOnObjects !== "undefined")
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return supportsArrayIndexGettersOnObjects;
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supportsArrayIndexGettersOnObjects = false;
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if (fnExists(Object.defineProperty)) {
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var obj = {};
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Object.defineProperty(obj, "0", {
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get: function() {
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supportsArrayIndexGettersOnObjects = true;
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return 0;
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}
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});
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var res = obj[0];
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}
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return supportsArrayIndexGettersOnObjects;
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}
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//-----------------------------------------------------------------------------
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function ConvertToFileUrl(pathStr) {
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return "file:" + pathStr.replace(/\\/g, "/");
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}
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//-----------------------------------------------------------------------------
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function fnExists(/*arguments*/) {
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for (var i = 0; i < arguments.length; i++) {
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if (typeof (arguments[i]) !== "function") return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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var __globalObject = Function("return this;")();
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function fnGlobalObject() {
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return __globalObject;
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}
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//-----------------------------------------------------------------------------
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function fnSupportsStrict() {
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"use strict";
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try {
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eval('with ({}) {}');
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return false;
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} catch (e) {
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return true;
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}
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}
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//-----------------------------------------------------------------------------
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//Verify all attributes specified data property of given object:
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//value, writable, enumerable, configurable
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//If all attribute values are expected, return true, otherwise, return false
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function dataPropertyAttributesAreCorrect(obj,
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name,
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value,
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writable,
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enumerable,
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configurable) {
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var attributesCorrect = true;
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if (obj[name] !== value) {
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if (typeof obj[name] === "number" &&
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isNaN(obj[name]) &&
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typeof value === "number" &&
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isNaN(value)) {
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// keep empty
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} else {
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attributesCorrect = false;
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}
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}
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try {
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if (obj[name] === "oldValue") {
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obj[name] = "newValue";
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} else {
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obj[name] = "OldValue";
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}
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} catch (we) {
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}
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var overwrited = false;
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if (obj[name] !== value) {
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if (typeof obj[name] === "number" &&
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isNaN(obj[name]) &&
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typeof value === "number" &&
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isNaN(value)) {
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// keep empty
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} else {
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overwrited = true;
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}
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}
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if (overwrited !== writable) {
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attributesCorrect = false;
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}
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var enumerated = false;
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for (var prop in obj) {
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if (obj.hasOwnProperty(prop) && prop === name) {
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enumerated = true;
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}
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}
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if (enumerated !== enumerable) {
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attributesCorrect = false;
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}
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var deleted = false;
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try {
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delete obj[name];
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} catch (de) {
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}
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if (!obj.hasOwnProperty(name)) {
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deleted = true;
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}
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if (deleted !== configurable) {
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attributesCorrect = false;
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}
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return attributesCorrect;
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}
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//-----------------------------------------------------------------------------
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//Verify all attributes specified accessor property of given object:
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//get, set, enumerable, configurable
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//If all attribute values are expected, return true, otherwise, return false
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function accessorPropertyAttributesAreCorrect(obj,
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name,
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get,
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set,
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setVerifyHelpProp,
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enumerable,
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configurable) {
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var attributesCorrect = true;
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if (get !== undefined) {
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if (obj[name] !== get()) {
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if (typeof obj[name] === "number" &&
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isNaN(obj[name]) &&
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typeof get() === "number" &&
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isNaN(get())) {
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// keep empty
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} else {
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attributesCorrect = false;
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}
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}
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} else {
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if (obj[name] !== undefined) {
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attributesCorrect = false;
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}
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}
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try {
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var desc = Object.getOwnPropertyDescriptor(obj, name);
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if (typeof desc.set === "undefined") {
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if (typeof set !== "undefined") {
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attributesCorrect = false;
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}
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} else {
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obj[name] = "toBeSetValue";
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if (obj[setVerifyHelpProp] !== "toBeSetValue") {
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attributesCorrect = false;
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}
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}
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} catch (se) {
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throw se;
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}
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var enumerated = false;
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for (var prop in obj) {
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if (obj.hasOwnProperty(prop) && prop === name) {
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enumerated = true;
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}
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}
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if (enumerated !== enumerable) {
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attributesCorrect = false;
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}
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var deleted = false;
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try {
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delete obj[name];
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} catch (de) {
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throw de;
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}
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if (!obj.hasOwnProperty(name)) {
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deleted = true;
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}
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if (deleted !== configurable) {
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attributesCorrect = false;
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}
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return attributesCorrect;
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}
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//-----------------------------------------------------------------------------
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var NotEarlyErrorString = "NotEarlyError";
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var EarlyErrorRePat = "^((?!" + NotEarlyErrorString + ").)*$";
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var NotEarlyError = new Error(NotEarlyErrorString);
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//-----------------------------------------------------------------------------
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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function Test262Error(message) {
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if (message) this.message = message;
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}
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Test262Error.prototype.toString = function () {
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return "Test262 Error: " + this.message;
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};
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function testFailed(message) {
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throw new Test262Error(message);
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}
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function testPrint(message) {
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}
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//adaptors for Test262 framework
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function $PRINT(message) {
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}
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function $INCLUDE(message) { }
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function $ERROR(message) {
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testFailed(message);
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}
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function $FAIL(message) {
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testFailed(message);
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}
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//Sputnik library definitions
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//Ultimately these should be namespaced some how and only made
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//available to tests that explicitly include them.
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//For now, we just define the globally
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//math_precision.js
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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function getPrecision(num) {
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//TODO: Create a table of prec's,
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// because using Math for testing Math isn't that correct.
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var log2num = Math.log(Math.abs(num)) / Math.LN2;
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var pernum = Math.ceil(log2num);
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return (2 * Math.pow(2, -52 + pernum));
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//return(0);
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}
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//math_isequal.js
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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var prec;
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function isEqual(num1, num2) {
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if ((num1 === Infinity) && (num2 === Infinity)) {
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return (true);
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}
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if ((num1 === -Infinity) && (num2 === -Infinity)) {
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return (true);
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}
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prec = getPrecision(Math.min(Math.abs(num1), Math.abs(num2)));
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return (Math.abs(num1 - num2) <= prec);
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//return(num1 === num2);
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}
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//numeric_conversion.js
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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function ToInteger(p) {
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var x = Number(p);
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if (isNaN(x)) {
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return +0;
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}
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if ((x === +0)
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|| (x === -0)
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|| (x === Number.POSITIVE_INFINITY)
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|| (x === Number.NEGATIVE_INFINITY)) {
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return x;
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}
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var sign = (x < 0) ? -1 : 1;
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return (sign * Math.floor(Math.abs(x)));
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}
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//Date_constants.js
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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var HoursPerDay = 24;
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var MinutesPerHour = 60;
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var SecondsPerMinute = 60;
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var msPerDay = 86400000;
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var msPerSecond = 1000;
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var msPerMinute = 60000;
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var msPerHour = 3600000;
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var date_1899_end = -2208988800001;
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var date_1900_start = -2208988800000;
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var date_1969_end = -1;
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var date_1970_start = 0;
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var date_1999_end = 946684799999;
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var date_2000_start = 946684800000;
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var date_2099_end = 4102444799999;
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var date_2100_start = 4102444800000;
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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//the following values are normally generated by the sputnik.py driver
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var $LocalTZ,
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$DST_start_month,
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$DST_start_sunday,
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$DST_start_hour,
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$DST_start_minutes,
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$DST_end_month,
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$DST_end_sunday,
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$DST_end_hour,
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$DST_end_minutes;
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(function () {
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/**
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* Finds the first date, starting from |start|, where |predicate|
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* holds.
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*/
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var findNearestDateBefore = function(start, predicate) {
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var current = start;
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var month = 1000 * 60 * 60 * 24 * 30;
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for (var step = month; step > 0; step = Math.floor(step / 3)) {
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if (!predicate(current)) {
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while (!predicate(current))
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current = new Date(current.getTime() + step);
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current = new Date(current.getTime() - step);
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}
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}
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while (!predicate(current)) {
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current = new Date(current.getTime() + 1);
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}
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return current;
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};
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var juneDate = new Date(2000, 5, 20, 0, 0, 0, 0);
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var decemberDate = new Date(2000, 11, 20, 0, 0, 0, 0);
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var juneOffset = juneDate.getTimezoneOffset();
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var decemberOffset = decemberDate.getTimezoneOffset();
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var isSouthernHemisphere = (juneOffset > decemberOffset);
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var winterTime = isSouthernHemisphere ? juneDate : decemberDate;
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var summerTime = isSouthernHemisphere ? decemberDate : juneDate;
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var dstStart = findNearestDateBefore(winterTime, function (date) {
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return date.getTimezoneOffset() == summerTime.getTimezoneOffset();
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});
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$DST_start_month = dstStart.getMonth();
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$DST_start_sunday = dstStart.getDate() > 15 ? '"last"' : '"first"';
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$DST_start_hour = dstStart.getHours();
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$DST_start_minutes = dstStart.getMinutes();
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var dstEnd = findNearestDateBefore(summerTime, function (date) {
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return date.getTimezoneOffset() == winterTime.getTimezoneOffset();
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});
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$DST_end_month = dstEnd.getMonth();
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$DST_end_sunday = dstEnd.getDate() > 15 ? '"last"' : '"first"';
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$DST_end_hour = dstEnd.getHours();
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$DST_end_minutes = dstEnd.getMinutes();
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return;
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})();
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//Date.library.js
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// Copyright 2009 the Sputnik authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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//15.9.1.2 Day Number and Time within Day
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function Day(t) {
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return Math.floor(t/msPerDay);
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}
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function TimeWithinDay(t) {
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return t%msPerDay;
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}
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//15.9.1.3 Year Number
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function DaysInYear(y){
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if(y%4 != 0) return 365;
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if(y%4 == 0 && y%100 != 0) return 366;
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if(y%100 == 0 && y%400 != 0) return 365;
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if(y%400 == 0) return 366;
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}
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function DayFromYear(y) {
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return (365*(y-1970)
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+ Math.floor((y-1969)/4)
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- Math.floor((y-1901)/100)
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+ Math.floor((y-1601)/400));
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}
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function TimeFromYear(y){
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return msPerDay*DayFromYear(y);
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}
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function YearFromTime(t) {
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t = Number(t);
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var sign = ( t < 0 ) ? -1 : 1;
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var year = ( sign < 0 ) ? 1969 : 1970;
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for(var time = 0;;year += sign){
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time = TimeFromYear(year);
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if(sign > 0 && time > t){
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year -= sign;
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break;
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}
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else if(sign < 0 && time <= t){
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break;
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}
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};
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return year;
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}
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function InLeapYear(t){
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if(DaysInYear(YearFromTime(t)) == 365)
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return 0;
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if(DaysInYear(YearFromTime(t)) == 366)
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return 1;
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}
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function DayWithinYear(t) {
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return Day(t)-DayFromYear(YearFromTime(t));
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}
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//15.9.1.4 Month Number
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function MonthFromTime(t){
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var day = DayWithinYear(t);
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var leap = InLeapYear(t);
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if((0 <= day) && (day < 31)) return 0;
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if((31 <= day) && (day < (59+leap))) return 1;
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if(((59+leap) <= day) && (day < (90+leap))) return 2;
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if(((90+leap) <= day) && (day < (120+leap))) return 3;
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if(((120+leap) <= day) && (day < (151+leap))) return 4;
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if(((151+leap) <= day) && (day < (181+leap))) return 5;
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if(((181+leap) <= day) && (day < (212+leap))) return 6;
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if(((212+leap) <= day) && (day < (243+leap))) return 7;
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if(((243+leap) <= day) && (day < (273+leap))) return 8;
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if(((273+leap) <= day) && (day < (304+leap))) return 9;
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if(((304+leap) <= day) && (day < (334+leap))) return 10;
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if(((334+leap) <= day) && (day < (365+leap))) return 11;
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}
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//15.9.1.5 Date Number
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function DateFromTime(t) {
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var day = DayWithinYear(t);
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var month = MonthFromTime(t);
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var leap = InLeapYear(t);
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if(month == 0) return day+1;
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if(month == 1) return day-30;
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if(month == 2) return day-58-leap;
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if(month == 3) return day-89-leap;
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if(month == 4) return day-119-leap;
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if(month == 5) return day-150-leap;
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if(month == 6) return day-180-leap;
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if(month == 7) return day-211-leap;
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if(month == 8) return day-242-leap;
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if(month == 9) return day-272-leap;
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if(month == 10) return day-303-leap;
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if(month == 11) return day-333-leap;
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}
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//15.9.1.6 Week Day
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function WeekDay(t) {
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var weekday = (Day(t)+4)%7;
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return (weekday < 0 ? 7+weekday : weekday);
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}
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//15.9.1.9 Daylight Saving Time Adjustment
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$LocalTZ = (new Date()).getTimezoneOffset() / -60;
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if (DaylightSavingTA((new Date()).valueOf()) !== 0) {
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$LocalTZ -= 1;
|
|
}
|
|
var LocalTZA = $LocalTZ*msPerHour;
|
|
|
|
function DaysInMonth(m, leap) {
|
|
m = m%12;
|
|
|
|
//April, June, Sept, Nov
|
|
if(m == 3 || m == 5 || m == 8 || m == 10 ) {
|
|
return 30;
|
|
}
|
|
|
|
//Jan, March, May, July, Aug, Oct, Dec
|
|
if(m == 0 || m == 2 || m == 4 || m == 6 || m == 7 || m == 9 || m == 11){
|
|
return 31;
|
|
}
|
|
|
|
//Feb
|
|
return 28+leap;
|
|
}
|
|
|
|
function GetSundayInMonth(t, m, count){
|
|
var year = YearFromTime(t);
|
|
var tempDate;
|
|
|
|
if (count==='"first"') {
|
|
for (var d=1; d <= DaysInMonth(m, InLeapYear(t)); d++) {
|
|
tempDate = new Date(year, m, d);
|
|
if (tempDate.getDay()===0) {
|
|
return tempDate.valueOf();
|
|
}
|
|
}
|
|
} else if(count==='"last"') {
|
|
for (var d=DaysInMonth(m, InLeapYear(t)); d>0; d--) {
|
|
tempDate = new Date(year, m, d);
|
|
if (tempDate.getDay()===0) {
|
|
return tempDate.valueOf();
|
|
}
|
|
}
|
|
}
|
|
throw new Error("Unsupported 'count' arg:" + count);
|
|
}
|
|
/*
|
|
function GetSundayInMonth(t, m, count){
|
|
var year = YearFromTime(t);
|
|
var leap = InLeapYear(t);
|
|
var day = 0;
|
|
|
|
if(m >= 1) day += DaysInMonth(0, leap);
|
|
if(m >= 2) day += DaysInMonth(1, leap);
|
|
if(m >= 3) day += DaysInMonth(2, leap);
|
|
if(m >= 4) day += DaysInMonth(3, leap);
|
|
if(m >= 5) day += DaysInMonth(4, leap);
|
|
if(m >= 6) day += DaysInMonth(5, leap);
|
|
if(m >= 7) day += DaysInMonth(6, leap);
|
|
if(m >= 8) day += DaysInMonth(7, leap);
|
|
if(m >= 9) day += DaysInMonth(8, leap);
|
|
if(m >= 10) day += DaysInMonth(9, leap);
|
|
if(m >= 11) day += DaysInMonth(10, leap);
|
|
|
|
var month_start = TimeFromYear(year)+day*msPerDay;
|
|
var sunday = 0;
|
|
|
|
if(count === "last"){
|
|
for(var last_sunday = month_start+DaysInMonth(m, leap)*msPerDay;
|
|
WeekDay(last_sunday)>0;
|
|
last_sunday -= msPerDay
|
|
){};
|
|
sunday = last_sunday;
|
|
}
|
|
else {
|
|
for(var first_sunday = month_start;
|
|
WeekDay(first_sunday)>0;
|
|
first_sunday += msPerDay
|
|
){};
|
|
sunday = first_sunday+7*msPerDay*(count-1);
|
|
}
|
|
|
|
return sunday;
|
|
}*/
|
|
|
|
function DaylightSavingTA(t) {
|
|
// t = t-LocalTZA;
|
|
|
|
var DST_start = GetSundayInMonth(t, $DST_start_month, $DST_start_sunday) +
|
|
$DST_start_hour*msPerHour +
|
|
$DST_start_minutes*msPerMinute;
|
|
|
|
var k = new Date(DST_start);
|
|
|
|
var DST_end = GetSundayInMonth(t, $DST_end_month, $DST_end_sunday) +
|
|
$DST_end_hour*msPerHour +
|
|
$DST_end_minutes*msPerMinute;
|
|
|
|
if ( t >= DST_start && t < DST_end ) {
|
|
return msPerHour;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
//15.9.1.9 Local Time
|
|
function LocalTime(t){
|
|
return t+LocalTZA+DaylightSavingTA(t);
|
|
}
|
|
|
|
function UTC(t) {
|
|
return t-LocalTZA-DaylightSavingTA(t-LocalTZA);
|
|
}
|
|
|
|
//15.9.1.10 Hours, Minutes, Second, and Milliseconds
|
|
function HourFromTime(t){
|
|
return Math.floor(t/msPerHour)%HoursPerDay;
|
|
}
|
|
|
|
function MinFromTime(t){
|
|
return Math.floor(t/msPerMinute)%MinutesPerHour;
|
|
}
|
|
|
|
function SecFromTime(t){
|
|
return Math.floor(t/msPerSecond)%SecondsPerMinute;
|
|
}
|
|
|
|
function msFromTime(t){
|
|
return t%msPerSecond;
|
|
}
|
|
|
|
//15.9.1.11 MakeTime (hour, min, sec, ms)
|
|
function MakeTime(hour, min, sec, ms){
|
|
if ( !isFinite(hour) || !isFinite(min) || !isFinite(sec) || !isFinite(ms)) {
|
|
return Number.NaN;
|
|
}
|
|
|
|
hour = ToInteger(hour);
|
|
min = ToInteger(min);
|
|
sec = ToInteger(sec);
|
|
ms = ToInteger(ms);
|
|
|
|
return ((hour*msPerHour) + (min*msPerMinute) + (sec*msPerSecond) + ms);
|
|
}
|
|
|
|
//15.9.1.12 MakeDay (year, month, date)
|
|
function MakeDay(year, month, date) {
|
|
if ( !isFinite(year) || !isFinite(month) || !isFinite(date)) {
|
|
return Number.NaN;
|
|
}
|
|
|
|
year = ToInteger(year);
|
|
month = ToInteger(month);
|
|
date = ToInteger(date );
|
|
|
|
var result5 = year + Math.floor(month/12);
|
|
var result6 = month%12;
|
|
|
|
var sign = ( year < 1970 ) ? -1 : 1;
|
|
var t = ( year < 1970 ) ? 1 : 0;
|
|
var y = ( year < 1970 ) ? 1969 : 1970;
|
|
|
|
if( sign == -1 ){
|
|
for ( y = 1969; y >= year; y += sign ) {
|
|
t += sign * DaysInYear(y)*msPerDay;
|
|
}
|
|
} else {
|
|
for ( y = 1970 ; y < year; y += sign ) {
|
|
t += sign * DaysInYear(y)*msPerDay;
|
|
}
|
|
}
|
|
|
|
var leap = 0;
|
|
for ( var m = 0; m < month; m++ ) {
|
|
//if year is changed, than we need to recalculate leep
|
|
leap = InLeapYear(t);
|
|
t += DaysInMonth(m, leap)*msPerDay;
|
|
}
|
|
|
|
if ( YearFromTime(t) != result5 ) {
|
|
return Number.NaN;
|
|
}
|
|
if ( MonthFromTime(t) != result6 ) {
|
|
return Number.NaN;
|
|
}
|
|
if ( DateFromTime(t) != 1 ) {
|
|
return Number.NaN;
|
|
}
|
|
|
|
return Day(t)+date-1;
|
|
}
|
|
|
|
//15.9.1.13 MakeDate (day, time)
|
|
function MakeDate( day, time ) {
|
|
if(!isFinite(day) || !isFinite(time)) {
|
|
return Number.NaN;
|
|
}
|
|
|
|
return day*msPerDay+time;
|
|
}
|
|
|
|
//15.9.1.14 TimeClip (time)
|
|
function TimeClip(time) {
|
|
if(!isFinite(time) || Math.abs(time) > 8.64e15){
|
|
return Number.NaN;
|
|
}
|
|
|
|
return ToInteger(time);
|
|
}
|
|
|
|
//Test Functions
|
|
//ConstructDate is considered deprecated, and should not be used directly from
|
|
//test262 tests as it's incredibly sensitive to DST start/end dates that
|
|
//vary with geographic location.
|
|
function ConstructDate(year, month, date, hours, minutes, seconds, ms){
|
|
/*
|
|
* 1. Call ToNumber(year)
|
|
* 2. Call ToNumber(month)
|
|
* 3. If date is supplied use ToNumber(date); else use 1
|
|
* 4. If hours is supplied use ToNumber(hours); else use 0
|
|
* 5. If minutes is supplied use ToNumber(minutes); else use 0
|
|
* 6. If seconds is supplied use ToNumber(seconds); else use 0
|
|
* 7. If ms is supplied use ToNumber(ms); else use 0
|
|
* 8. If Result(1) is not NaN and 0 <= ToInteger(Result(1)) <= 99, Result(8) is
|
|
* 1900+ToInteger(Result(1)); otherwise, Result(8) is Result(1)
|
|
* 9. Compute MakeDay(Result(8), Result(2), Result(3))
|
|
* 10. Compute MakeTime(Result(4), Result(5), Result(6), Result(7))
|
|
* 11. Compute MakeDate(Result(9), Result(10))
|
|
* 12. Set the [[Value]] property of the newly constructed object to TimeClip(UTC(Result(11)))
|
|
*/
|
|
var r1 = Number(year);
|
|
var r2 = Number(month);
|
|
var r3 = ((date && arguments.length > 2) ? Number(date) : 1);
|
|
var r4 = ((hours && arguments.length > 3) ? Number(hours) : 0);
|
|
var r5 = ((minutes && arguments.length > 4) ? Number(minutes) : 0);
|
|
var r6 = ((seconds && arguments.length > 5) ? Number(seconds) : 0);
|
|
var r7 = ((ms && arguments.length > 6) ? Number(ms) : 0);
|
|
|
|
var r8 = r1;
|
|
|
|
if(!isNaN(r1) && (0 <= ToInteger(r1)) && (ToInteger(r1) <= 99))
|
|
r8 = 1900+r1;
|
|
|
|
var r9 = MakeDay(r8, r2, r3);
|
|
var r10 = MakeTime(r4, r5, r6, r7);
|
|
var r11 = MakeDate(r9, r10);
|
|
|
|
var retVal = TimeClip(UTC(r11));
|
|
return retVal;
|
|
}
|
|
|
|
|
|
|
|
/**** Python code for initialize the above constants
|
|
// We may want to replicate the following in JavaScript.
|
|
// However, using JS date operations to generate parameters that are then used to
|
|
// test those some date operations seems unsound. However, it isn't clear if there
|
|
//is a good interoperable alternative.
|
|
|
|
# Copyright 2009 the Sputnik authors. All rights reserved.
|
|
# This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
def GetDaylightSavingsTimes():
|
|
# Is the given floating-point time in DST?
|
|
def IsDst(t):
|
|
return time.localtime(t)[-1]
|
|
# Binary search to find an interval between the two times no greater than
|
|
# delta where DST switches, returning the midpoint.
|
|
def FindBetween(start, end, delta):
|
|
while end - start > delta:
|
|
middle = (end + start) / 2
|
|
if IsDst(middle) == IsDst(start):
|
|
start = middle
|
|
else:
|
|
end = middle
|
|
return (start + end) / 2
|
|
now = time.time()
|
|
one_month = (30 * 24 * 60 * 60)
|
|
# First find a date with different daylight savings. To avoid corner cases
|
|
# we try four months before and after today.
|
|
after = now + 4 * one_month
|
|
before = now - 4 * one_month
|
|
if IsDst(now) == IsDst(before) and IsDst(now) == IsDst(after):
|
|
logger.warning("Was unable to determine DST info.")
|
|
return None
|
|
# Determine when the change occurs between now and the date we just found
|
|
# in a different DST.
|
|
if IsDst(now) != IsDst(before):
|
|
first = FindBetween(before, now, 1)
|
|
else:
|
|
first = FindBetween(now, after, 1)
|
|
# Determine when the change occurs between three and nine months from the
|
|
# first.
|
|
second = FindBetween(first + 3 * one_month, first + 9 * one_month, 1)
|
|
# Find out which switch is into and which if out of DST
|
|
if IsDst(first - 1) and not IsDst(first + 1):
|
|
start = second
|
|
end = first
|
|
else:
|
|
start = first
|
|
end = second
|
|
return (start, end)
|
|
|
|
|
|
def GetDaylightSavingsAttribs():
|
|
times = GetDaylightSavingsTimes()
|
|
if not times:
|
|
return None
|
|
(start, end) = times
|
|
def DstMonth(t):
|
|
return time.localtime(t)[1] - 1
|
|
def DstHour(t):
|
|
return time.localtime(t - 1)[3] + 1
|
|
def DstSunday(t):
|
|
if time.localtime(t)[2] > 15:
|
|
return "'last'"
|
|
else:
|
|
return "'first'"
|
|
def DstMinutes(t):
|
|
return (time.localtime(t - 1)[4] + 1) % 60
|
|
attribs = { }
|
|
attribs['start_month'] = DstMonth(start)
|
|
attribs['end_month'] = DstMonth(end)
|
|
attribs['start_sunday'] = DstSunday(start)
|
|
attribs['end_sunday'] = DstSunday(end)
|
|
attribs['start_hour'] = DstHour(start)
|
|
attribs['end_hour'] = DstHour(end)
|
|
attribs['start_minutes'] = DstMinutes(start)
|
|
attribs['end_minutes'] = DstMinutes(end)
|
|
return attribs
|
|
|
|
*********/
|
|
|
|
//--Test case registration-----------------------------------------------------
|
|
function runTestCase(testcase) {
|
|
if (testcase() !== true) {
|
|
$ERROR("Test case returned non-true value!");
|
|
}
|
|
}
|