Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/js/i18n.js b/src/js/i18n.js
new file mode 100644
index 0000000..7e00fcd
--- /dev/null
+++ b/src/js/i18n.js
@@ -0,0 +1,2197 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// ECMAScript 402 API implementation.
+
+/**
+ * Intl object is a single object that has some named properties,
+ * all of which are constructors.
+ */
+(function(global, utils) {
+
+"use strict";
+
+%CheckIsBootstrapping();
+
+// -------------------------------------------------------------------
+// Imports
+
+var ArrayIndexOf;
+var ArrayJoin;
+var ArrayPush;
+var IsFinite;
+var IsNaN;
+var GlobalBoolean = global.Boolean;
+var GlobalDate = global.Date;
+var GlobalNumber = global.Number;
+var GlobalRegExp = global.RegExp;
+var GlobalString = global.String;
+var MakeError;
+var MakeRangeError;
+var MakeTypeError;
+var MathFloor;
+var ObjectDefineProperties = utils.ImportNow("ObjectDefineProperties");
+var ObjectDefineProperty = utils.ImportNow("ObjectDefineProperty");
+var patternSymbol = utils.ImportNow("intl_pattern_symbol");
+var RegExpTest;
+var resolvedSymbol = utils.ImportNow("intl_resolved_symbol");
+var StringIndexOf;
+var StringLastIndexOf;
+var StringMatch;
+var StringReplace;
+var StringSplit;
+var StringSubstr;
+var StringSubstring;
+
+utils.Import(function(from) {
+ ArrayIndexOf = from.ArrayIndexOf;
+ ArrayJoin = from.ArrayJoin;
+ ArrayPush = from.ArrayPush;
+ IsFinite = from.IsFinite;
+ IsNaN = from.IsNaN;
+ MakeError = from.MakeError;
+ MakeRangeError = from.MakeRangeError;
+ MakeTypeError = from.MakeTypeError;
+ MathFloor = from.MathFloor;
+ RegExpTest = from.RegExpTest;
+ StringIndexOf = from.StringIndexOf;
+ StringLastIndexOf = from.StringLastIndexOf;
+ StringMatch = from.StringMatch;
+ StringReplace = from.StringReplace;
+ StringSplit = from.StringSplit;
+ StringSubstr = from.StringSubstr;
+ StringSubstring = from.StringSubstring;
+});
+
+// -------------------------------------------------------------------
+
+var Intl = {};
+
+%AddNamedProperty(global, "Intl", Intl, DONT_ENUM);
+
+/**
+ * Caches available locales for each service.
+ */
+var AVAILABLE_LOCALES = {
+ 'collator': UNDEFINED,
+ 'numberformat': UNDEFINED,
+ 'dateformat': UNDEFINED,
+ 'breakiterator': UNDEFINED
+};
+
+/**
+ * Caches default ICU locale.
+ */
+var DEFAULT_ICU_LOCALE = UNDEFINED;
+
+/**
+ * Unicode extension regular expression.
+ */
+var UNICODE_EXTENSION_RE = UNDEFINED;
+
+function GetUnicodeExtensionRE() {
+ if (IS_UNDEFINED(UNDEFINED)) {
+ UNICODE_EXTENSION_RE = new GlobalRegExp('-u(-[a-z0-9]{2,8})+', 'g');
+ }
+ return UNICODE_EXTENSION_RE;
+}
+
+/**
+ * Matches any Unicode extension.
+ */
+var ANY_EXTENSION_RE = UNDEFINED;
+
+function GetAnyExtensionRE() {
+ if (IS_UNDEFINED(ANY_EXTENSION_RE)) {
+ ANY_EXTENSION_RE = new GlobalRegExp('-[a-z0-9]{1}-.*', 'g');
+ }
+ return ANY_EXTENSION_RE;
+}
+
+/**
+ * Replace quoted text (single quote, anything but the quote and quote again).
+ */
+var QUOTED_STRING_RE = UNDEFINED;
+
+function GetQuotedStringRE() {
+ if (IS_UNDEFINED(QUOTED_STRING_RE)) {
+ QUOTED_STRING_RE = new GlobalRegExp("'[^']+'", 'g');
+ }
+ return QUOTED_STRING_RE;
+}
+
+/**
+ * Matches valid service name.
+ */
+var SERVICE_RE = UNDEFINED;
+
+function GetServiceRE() {
+ if (IS_UNDEFINED(SERVICE_RE)) {
+ SERVICE_RE =
+ new GlobalRegExp('^(collator|numberformat|dateformat|breakiterator)$');
+ }
+ return SERVICE_RE;
+}
+
+/**
+ * Validates a language tag against bcp47 spec.
+ * Actual value is assigned on first run.
+ */
+var LANGUAGE_TAG_RE = UNDEFINED;
+
+function GetLanguageTagRE() {
+ if (IS_UNDEFINED(LANGUAGE_TAG_RE)) {
+ BuildLanguageTagREs();
+ }
+ return LANGUAGE_TAG_RE;
+}
+
+/**
+ * Helps find duplicate variants in the language tag.
+ */
+var LANGUAGE_VARIANT_RE = UNDEFINED;
+
+function GetLanguageVariantRE() {
+ if (IS_UNDEFINED(LANGUAGE_VARIANT_RE)) {
+ BuildLanguageTagREs();
+ }
+ return LANGUAGE_VARIANT_RE;
+}
+
+/**
+ * Helps find duplicate singletons in the language tag.
+ */
+var LANGUAGE_SINGLETON_RE = UNDEFINED;
+
+function GetLanguageSingletonRE() {
+ if (IS_UNDEFINED(LANGUAGE_SINGLETON_RE)) {
+ BuildLanguageTagREs();
+ }
+ return LANGUAGE_SINGLETON_RE;
+}
+
+/**
+ * Matches valid IANA time zone names.
+ */
+var TIMEZONE_NAME_CHECK_RE = UNDEFINED;
+
+function GetTimezoneNameCheckRE() {
+ if (IS_UNDEFINED(TIMEZONE_NAME_CHECK_RE)) {
+ TIMEZONE_NAME_CHECK_RE = new GlobalRegExp(
+ '^([A-Za-z]+)/([A-Za-z_-]+)((?:\/[A-Za-z_-]+)+)*$');
+ }
+ return TIMEZONE_NAME_CHECK_RE;
+}
+
+/**
+ * Matches valid location parts of IANA time zone names.
+ */
+var TIMEZONE_NAME_LOCATION_PART_RE = UNDEFINED;
+
+function GetTimezoneNameLocationPartRE() {
+ if (IS_UNDEFINED(TIMEZONE_NAME_LOCATION_PART_RE)) {
+ TIMEZONE_NAME_LOCATION_PART_RE =
+ new GlobalRegExp('^([A-Za-z]+)((?:[_-][A-Za-z]+)+)*$');
+ }
+ return TIMEZONE_NAME_LOCATION_PART_RE;
+}
+
+/**
+ * Adds bound method to the prototype of the given object.
+ */
+function addBoundMethod(obj, methodName, implementation, length) {
+ %CheckIsBootstrapping();
+ function getter() {
+ if (!%IsInitializedIntlObject(this)) {
+ throw MakeTypeError(kMethodCalledOnWrongObject, methodName);
+ }
+ var internalName = '__bound' + methodName + '__';
+ if (IS_UNDEFINED(this[internalName])) {
+ var that = this;
+ var boundMethod;
+ if (IS_UNDEFINED(length) || length === 2) {
+ boundMethod = function(x, y) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+ return implementation(that, x, y);
+ }
+ } else if (length === 1) {
+ boundMethod = function(x) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+ return implementation(that, x);
+ }
+ } else {
+ boundMethod = function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+ // DateTimeFormat.format needs to be 0 arg method, but can stil
+ // receive optional dateValue param. If one was provided, pass it
+ // along.
+ if (%_ArgumentsLength() > 0) {
+ return implementation(that, %_Arguments(0));
+ } else {
+ return implementation(that);
+ }
+ }
+ }
+ %FunctionSetName(boundMethod, internalName);
+ %FunctionRemovePrototype(boundMethod);
+ %SetNativeFlag(boundMethod);
+ this[internalName] = boundMethod;
+ }
+ return this[internalName];
+ }
+
+ %FunctionSetName(getter, methodName);
+ %FunctionRemovePrototype(getter);
+ %SetNativeFlag(getter);
+
+ ObjectDefineProperty(obj.prototype, methodName, {
+ get: getter,
+ enumerable: false,
+ configurable: true
+ });
+}
+
+
+/**
+ * Returns an intersection of locales and service supported locales.
+ * Parameter locales is treated as a priority list.
+ */
+function supportedLocalesOf(service, locales, options) {
+ if (IS_NULL(%_Call(StringMatch, service, GetServiceRE()))) {
+ throw MakeError(kWrongServiceType, service);
+ }
+
+ // Provide defaults if matcher was not specified.
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ } else {
+ options = TO_OBJECT(options);
+ }
+
+ var matcher = options.localeMatcher;
+ if (!IS_UNDEFINED(matcher)) {
+ matcher = GlobalString(matcher);
+ if (matcher !== 'lookup' && matcher !== 'best fit') {
+ throw MakeRangeError(kLocaleMatcher, matcher);
+ }
+ } else {
+ matcher = 'best fit';
+ }
+
+ var requestedLocales = initializeLocaleList(locales);
+
+ // Cache these, they don't ever change per service.
+ if (IS_UNDEFINED(AVAILABLE_LOCALES[service])) {
+ AVAILABLE_LOCALES[service] = getAvailableLocalesOf(service);
+ }
+
+ // Use either best fit or lookup algorithm to match locales.
+ if (matcher === 'best fit') {
+ return initializeLocaleList(bestFitSupportedLocalesOf(
+ requestedLocales, AVAILABLE_LOCALES[service]));
+ }
+
+ return initializeLocaleList(lookupSupportedLocalesOf(
+ requestedLocales, AVAILABLE_LOCALES[service]));
+}
+
+
+/**
+ * Returns the subset of the provided BCP 47 language priority list for which
+ * this service has a matching locale when using the BCP 47 Lookup algorithm.
+ * Locales appear in the same order in the returned list as in the input list.
+ */
+function lookupSupportedLocalesOf(requestedLocales, availableLocales) {
+ var matchedLocales = [];
+ for (var i = 0; i < requestedLocales.length; ++i) {
+ // Remove -u- extension.
+ var locale = %_Call(StringReplace,
+ requestedLocales[i],
+ GetUnicodeExtensionRE(),
+ '');
+ do {
+ if (!IS_UNDEFINED(availableLocales[locale])) {
+ // Push requested locale not the resolved one.
+ %_Call(ArrayPush, matchedLocales, requestedLocales[i]);
+ break;
+ }
+ // Truncate locale if possible, if not break.
+ var pos = %_Call(StringLastIndexOf, locale, '-');
+ if (pos === -1) {
+ break;
+ }
+ locale = %_Call(StringSubstring, locale, 0, pos);
+ } while (true);
+ }
+
+ return matchedLocales;
+}
+
+
+/**
+ * Returns the subset of the provided BCP 47 language priority list for which
+ * this service has a matching locale when using the implementation
+ * dependent algorithm.
+ * Locales appear in the same order in the returned list as in the input list.
+ */
+function bestFitSupportedLocalesOf(requestedLocales, availableLocales) {
+ // TODO(cira): implement better best fit algorithm.
+ return lookupSupportedLocalesOf(requestedLocales, availableLocales);
+}
+
+
+/**
+ * Returns a getOption function that extracts property value for given
+ * options object. If property is missing it returns defaultValue. If value
+ * is out of range for that property it throws RangeError.
+ */
+function getGetOption(options, caller) {
+ if (IS_UNDEFINED(options)) throw MakeError(kDefaultOptionsMissing, caller);
+
+ var getOption = function getOption(property, type, values, defaultValue) {
+ if (!IS_UNDEFINED(options[property])) {
+ var value = options[property];
+ switch (type) {
+ case 'boolean':
+ value = GlobalBoolean(value);
+ break;
+ case 'string':
+ value = GlobalString(value);
+ break;
+ case 'number':
+ value = GlobalNumber(value);
+ break;
+ default:
+ throw MakeError(kWrongValueType);
+ }
+
+ if (!IS_UNDEFINED(values) && %_Call(ArrayIndexOf, values, value) === -1) {
+ throw MakeRangeError(kValueOutOfRange, value, caller, property);
+ }
+
+ return value;
+ }
+
+ return defaultValue;
+ }
+
+ return getOption;
+}
+
+
+/**
+ * Compares a BCP 47 language priority list requestedLocales against the locales
+ * in availableLocales and determines the best available language to meet the
+ * request. Two algorithms are available to match the locales: the Lookup
+ * algorithm described in RFC 4647 section 3.4, and an implementation dependent
+ * best-fit algorithm. Independent of the locale matching algorithm, options
+ * specified through Unicode locale extension sequences are negotiated
+ * separately, taking the caller's relevant extension keys and locale data as
+ * well as client-provided options into consideration. Returns an object with
+ * a locale property whose value is the language tag of the selected locale,
+ * and properties for each key in relevantExtensionKeys providing the selected
+ * value for that key.
+ */
+function resolveLocale(service, requestedLocales, options) {
+ requestedLocales = initializeLocaleList(requestedLocales);
+
+ var getOption = getGetOption(options, service);
+ var matcher = getOption('localeMatcher', 'string',
+ ['lookup', 'best fit'], 'best fit');
+ var resolved;
+ if (matcher === 'lookup') {
+ resolved = lookupMatcher(service, requestedLocales);
+ } else {
+ resolved = bestFitMatcher(service, requestedLocales);
+ }
+
+ return resolved;
+}
+
+
+/**
+ * Returns best matched supported locale and extension info using basic
+ * lookup algorithm.
+ */
+function lookupMatcher(service, requestedLocales) {
+ if (IS_NULL(%_Call(StringMatch, service, GetServiceRE()))) {
+ throw MakeError(kWrongServiceType, service);
+ }
+
+ // Cache these, they don't ever change per service.
+ if (IS_UNDEFINED(AVAILABLE_LOCALES[service])) {
+ AVAILABLE_LOCALES[service] = getAvailableLocalesOf(service);
+ }
+
+ for (var i = 0; i < requestedLocales.length; ++i) {
+ // Remove all extensions.
+ var locale = %_Call(StringReplace, requestedLocales[i],
+ GetAnyExtensionRE(), '');
+ do {
+ if (!IS_UNDEFINED(AVAILABLE_LOCALES[service][locale])) {
+ // Return the resolved locale and extension.
+ var extensionMatch =
+ %_Call(StringMatch, requestedLocales[i], GetUnicodeExtensionRE());
+ var extension = IS_NULL(extensionMatch) ? '' : extensionMatch[0];
+ return {'locale': locale, 'extension': extension, 'position': i};
+ }
+ // Truncate locale if possible.
+ var pos = %_Call(StringLastIndexOf, locale, '-');
+ if (pos === -1) {
+ break;
+ }
+ locale = %_Call(StringSubstring, locale, 0, pos);
+ } while (true);
+ }
+
+ // Didn't find a match, return default.
+ if (IS_UNDEFINED(DEFAULT_ICU_LOCALE)) {
+ DEFAULT_ICU_LOCALE = %GetDefaultICULocale();
+ }
+
+ return {'locale': DEFAULT_ICU_LOCALE, 'extension': '', 'position': -1};
+}
+
+
+/**
+ * Returns best matched supported locale and extension info using
+ * implementation dependend algorithm.
+ */
+function bestFitMatcher(service, requestedLocales) {
+ // TODO(cira): implement better best fit algorithm.
+ return lookupMatcher(service, requestedLocales);
+}
+
+
+/**
+ * Parses Unicode extension into key - value map.
+ * Returns empty object if the extension string is invalid.
+ * We are not concerned with the validity of the values at this point.
+ */
+function parseExtension(extension) {
+ var extensionSplit = %_Call(StringSplit, extension, '-');
+
+ // Assume ['', 'u', ...] input, but don't throw.
+ if (extensionSplit.length <= 2 ||
+ (extensionSplit[0] !== '' && extensionSplit[1] !== 'u')) {
+ return {};
+ }
+
+ // Key is {2}alphanum, value is {3,8}alphanum.
+ // Some keys may not have explicit values (booleans).
+ var extensionMap = {};
+ var previousKey = UNDEFINED;
+ for (var i = 2; i < extensionSplit.length; ++i) {
+ var length = extensionSplit[i].length;
+ var element = extensionSplit[i];
+ if (length === 2) {
+ extensionMap[element] = UNDEFINED;
+ previousKey = element;
+ } else if (length >= 3 && length <=8 && !IS_UNDEFINED(previousKey)) {
+ extensionMap[previousKey] = element;
+ previousKey = UNDEFINED;
+ } else {
+ // There is a value that's too long, or that doesn't have a key.
+ return {};
+ }
+ }
+
+ return extensionMap;
+}
+
+
+/**
+ * Populates internalOptions object with boolean key-value pairs
+ * from extensionMap and options.
+ * Returns filtered extension (number and date format constructors use
+ * Unicode extensions for passing parameters to ICU).
+ * It's used for extension-option pairs only, e.g. kn-normalization, but not
+ * for 'sensitivity' since it doesn't have extension equivalent.
+ * Extensions like nu and ca don't have options equivalent, so we place
+ * undefined in the map.property to denote that.
+ */
+function setOptions(inOptions, extensionMap, keyValues, getOption, outOptions) {
+ var extension = '';
+
+ var updateExtension = function updateExtension(key, value) {
+ return '-' + key + '-' + GlobalString(value);
+ }
+
+ var updateProperty = function updateProperty(property, type, value) {
+ if (type === 'boolean' && (typeof value === 'string')) {
+ value = (value === 'true') ? true : false;
+ }
+
+ if (!IS_UNDEFINED(property)) {
+ defineWEProperty(outOptions, property, value);
+ }
+ }
+
+ for (var key in keyValues) {
+ if (%HasOwnProperty(keyValues, key)) {
+ var value = UNDEFINED;
+ var map = keyValues[key];
+ if (!IS_UNDEFINED(map.property)) {
+ // This may return true if user specifies numeric: 'false', since
+ // Boolean('nonempty') === true.
+ value = getOption(map.property, map.type, map.values);
+ }
+ if (!IS_UNDEFINED(value)) {
+ updateProperty(map.property, map.type, value);
+ extension += updateExtension(key, value);
+ continue;
+ }
+ // User options didn't have it, check Unicode extension.
+ // Here we want to convert strings 'true', 'false' into proper Boolean
+ // values (not a user error).
+ if (%HasOwnProperty(extensionMap, key)) {
+ value = extensionMap[key];
+ if (!IS_UNDEFINED(value)) {
+ updateProperty(map.property, map.type, value);
+ extension += updateExtension(key, value);
+ } else if (map.type === 'boolean') {
+ // Boolean keys are allowed not to have values in Unicode extension.
+ // Those default to true.
+ updateProperty(map.property, map.type, true);
+ extension += updateExtension(key, true);
+ }
+ }
+ }
+ }
+
+ return extension === ''? '' : '-u' + extension;
+}
+
+
+/**
+ * Converts all OwnProperties into
+ * configurable: false, writable: false, enumerable: true.
+ */
+function freezeArray(array) {
+ var l = array.length;
+ for (var i = 0; i < l; i++) {
+ if (i in array) {
+ ObjectDefineProperty(array, i, {value: array[i],
+ configurable: false,
+ writable: false,
+ enumerable: true});
+ }
+ }
+
+ ObjectDefineProperty(array, 'length', {value: l, writable: false});
+ return array;
+}
+
+
+/**
+ * It's sometimes desireable to leave user requested locale instead of ICU
+ * supported one (zh-TW is equivalent to zh-Hant-TW, so we should keep shorter
+ * one, if that was what user requested).
+ * This function returns user specified tag if its maximized form matches ICU
+ * resolved locale. If not we return ICU result.
+ */
+function getOptimalLanguageTag(original, resolved) {
+ // Returns Array<Object>, where each object has maximized and base properties.
+ // Maximized: zh -> zh-Hans-CN
+ // Base: zh-CN-u-ca-gregory -> zh-CN
+ // Take care of grandfathered or simple cases.
+ if (original === resolved) {
+ return original;
+ }
+
+ var locales = %GetLanguageTagVariants([original, resolved]);
+ if (locales[0].maximized !== locales[1].maximized) {
+ return resolved;
+ }
+
+ // Preserve extensions of resolved locale, but swap base tags with original.
+ var resolvedBase = new GlobalRegExp('^' + locales[1].base);
+ return %_Call(StringReplace, resolved, resolvedBase, locales[0].base);
+}
+
+
+/**
+ * Returns an Object that contains all of supported locales for a given
+ * service.
+ * In addition to the supported locales we add xx-ZZ locale for each xx-Yyyy-ZZ
+ * that is supported. This is required by the spec.
+ */
+function getAvailableLocalesOf(service) {
+ var available = %AvailableLocalesOf(service);
+
+ for (var i in available) {
+ if (%HasOwnProperty(available, i)) {
+ var parts =
+ %_Call(StringMatch, i, /^([a-z]{2,3})-([A-Z][a-z]{3})-([A-Z]{2})$/);
+ if (parts !== null) {
+ // Build xx-ZZ. We don't care about the actual value,
+ // as long it's not undefined.
+ available[parts[1] + '-' + parts[3]] = null;
+ }
+ }
+ }
+
+ return available;
+}
+
+
+/**
+ * Defines a property and sets writable and enumerable to true.
+ * Configurable is false by default.
+ */
+function defineWEProperty(object, property, value) {
+ ObjectDefineProperty(object, property,
+ {value: value, writable: true, enumerable: true});
+}
+
+
+/**
+ * Adds property to an object if the value is not undefined.
+ * Sets configurable descriptor to false.
+ */
+function addWEPropertyIfDefined(object, property, value) {
+ if (!IS_UNDEFINED(value)) {
+ defineWEProperty(object, property, value);
+ }
+}
+
+
+/**
+ * Defines a property and sets writable, enumerable and configurable to true.
+ */
+function defineWECProperty(object, property, value) {
+ ObjectDefineProperty(object, property, {value: value,
+ writable: true,
+ enumerable: true,
+ configurable: true});
+}
+
+
+/**
+ * Adds property to an object if the value is not undefined.
+ * Sets all descriptors to true.
+ */
+function addWECPropertyIfDefined(object, property, value) {
+ if (!IS_UNDEFINED(value)) {
+ defineWECProperty(object, property, value);
+ }
+}
+
+
+/**
+ * Returns titlecased word, aMeRricA -> America.
+ */
+function toTitleCaseWord(word) {
+ return %StringToUpperCase(%_Call(StringSubstr, word, 0, 1)) +
+ %StringToLowerCase(%_Call(StringSubstr, word, 1));
+}
+
+/**
+ * Returns titlecased location, bueNos_airES -> Buenos_Aires
+ * or ho_cHi_minH -> Ho_Chi_Minh. It is locale-agnostic and only
+ * deals with ASCII only characters.
+ * 'of', 'au' and 'es' are special-cased and lowercased.
+ */
+function toTitleCaseTimezoneLocation(location) {
+ var match = %_Call(StringMatch, location, GetTimezoneNameLocationPartRE());
+ if (IS_NULL(match)) throw MakeRangeError(kExpectedLocation, location);
+
+ var result = toTitleCaseWord(match[1]);
+ if (!IS_UNDEFINED(match[2]) && 2 < match.length) {
+ // The first character is a separator, '_' or '-'.
+ // None of IANA zone names has both '_' and '-'.
+ var separator = %_Call(StringSubstring, match[2], 0, 1);
+ var parts = %_Call(StringSplit, match[2], separator);
+ for (var i = 1; i < parts.length; i++) {
+ var part = parts[i]
+ var lowercasedPart = %StringToLowerCase(part);
+ result = result + separator +
+ ((lowercasedPart !== 'es' &&
+ lowercasedPart !== 'of' && lowercasedPart !== 'au') ?
+ toTitleCaseWord(part) : lowercasedPart);
+ }
+ }
+ return result;
+}
+
+/**
+ * Canonicalizes the language tag, or throws in case the tag is invalid.
+ */
+function canonicalizeLanguageTag(localeID) {
+ // null is typeof 'object' so we have to do extra check.
+ if (typeof localeID !== 'string' && typeof localeID !== 'object' ||
+ IS_NULL(localeID)) {
+ throw MakeTypeError(kLanguageID);
+ }
+
+ var localeString = GlobalString(localeID);
+
+ if (isValidLanguageTag(localeString) === false) {
+ throw MakeRangeError(kInvalidLanguageTag, localeString);
+ }
+
+ // This call will strip -kn but not -kn-true extensions.
+ // ICU bug filled - http://bugs.icu-project.org/trac/ticket/9265.
+ // TODO(cira): check if -u-kn-true-kc-true-kh-true still throws after
+ // upgrade to ICU 4.9.
+ var tag = %CanonicalizeLanguageTag(localeString);
+ if (tag === 'invalid-tag') {
+ throw MakeRangeError(kInvalidLanguageTag, localeString);
+ }
+
+ return tag;
+}
+
+
+/**
+ * Returns an array where all locales are canonicalized and duplicates removed.
+ * Throws on locales that are not well formed BCP47 tags.
+ */
+function initializeLocaleList(locales) {
+ var seen = [];
+ if (IS_UNDEFINED(locales)) {
+ // Constructor is called without arguments.
+ seen = [];
+ } else {
+ // We allow single string localeID.
+ if (typeof locales === 'string') {
+ %_Call(ArrayPush, seen, canonicalizeLanguageTag(locales));
+ return freezeArray(seen);
+ }
+
+ var o = TO_OBJECT(locales);
+ var len = TO_UINT32(o.length);
+
+ for (var k = 0; k < len; k++) {
+ if (k in o) {
+ var value = o[k];
+
+ var tag = canonicalizeLanguageTag(value);
+
+ if (%_Call(ArrayIndexOf, seen, tag) === -1) {
+ %_Call(ArrayPush, seen, tag);
+ }
+ }
+ }
+ }
+
+ return freezeArray(seen);
+}
+
+
+/**
+ * Validates the language tag. Section 2.2.9 of the bcp47 spec
+ * defines a valid tag.
+ *
+ * ICU is too permissible and lets invalid tags, like
+ * hant-cmn-cn, through.
+ *
+ * Returns false if the language tag is invalid.
+ */
+function isValidLanguageTag(locale) {
+ // Check if it's well-formed, including grandfadered tags.
+ if (!%_Call(RegExpTest, GetLanguageTagRE(), locale)) {
+ return false;
+ }
+
+ // Just return if it's a x- form. It's all private.
+ if (%_Call(StringIndexOf, locale, 'x-') === 0) {
+ return true;
+ }
+
+ // Check if there are any duplicate variants or singletons (extensions).
+
+ // Remove private use section.
+ locale = %_Call(StringSplit, locale, /-x-/)[0];
+
+ // Skip language since it can match variant regex, so we start from 1.
+ // We are matching i-klingon here, but that's ok, since i-klingon-klingon
+ // is not valid and would fail LANGUAGE_TAG_RE test.
+ var variants = [];
+ var extensions = [];
+ var parts = %_Call(StringSplit, locale, /-/);
+ for (var i = 1; i < parts.length; i++) {
+ var value = parts[i];
+ if (%_Call(RegExpTest, GetLanguageVariantRE(), value) &&
+ extensions.length === 0) {
+ if (%_Call(ArrayIndexOf, variants, value) === -1) {
+ %_Call(ArrayPush, variants, value);
+ } else {
+ return false;
+ }
+ }
+
+ if (%_Call(RegExpTest, GetLanguageSingletonRE(), value)) {
+ if (%_Call(ArrayIndexOf, extensions, value) === -1) {
+ %_Call(ArrayPush, extensions, value);
+ } else {
+ return false;
+ }
+ }
+ }
+
+ return true;
+ }
+
+
+/**
+ * Builds a regular expresion that validates the language tag
+ * against bcp47 spec.
+ * Uses http://tools.ietf.org/html/bcp47, section 2.1, ABNF.
+ * Runs on load and initializes the global REs.
+ */
+function BuildLanguageTagREs() {
+ var alpha = '[a-zA-Z]';
+ var digit = '[0-9]';
+ var alphanum = '(' + alpha + '|' + digit + ')';
+ var regular = '(art-lojban|cel-gaulish|no-bok|no-nyn|zh-guoyu|zh-hakka|' +
+ 'zh-min|zh-min-nan|zh-xiang)';
+ var irregular = '(en-GB-oed|i-ami|i-bnn|i-default|i-enochian|i-hak|' +
+ 'i-klingon|i-lux|i-mingo|i-navajo|i-pwn|i-tao|i-tay|' +
+ 'i-tsu|sgn-BE-FR|sgn-BE-NL|sgn-CH-DE)';
+ var grandfathered = '(' + irregular + '|' + regular + ')';
+ var privateUse = '(x(-' + alphanum + '{1,8})+)';
+
+ var singleton = '(' + digit + '|[A-WY-Za-wy-z])';
+ LANGUAGE_SINGLETON_RE = new GlobalRegExp('^' + singleton + '$', 'i');
+
+ var extension = '(' + singleton + '(-' + alphanum + '{2,8})+)';
+
+ var variant = '(' + alphanum + '{5,8}|(' + digit + alphanum + '{3}))';
+ LANGUAGE_VARIANT_RE = new GlobalRegExp('^' + variant + '$', 'i');
+
+ var region = '(' + alpha + '{2}|' + digit + '{3})';
+ var script = '(' + alpha + '{4})';
+ var extLang = '(' + alpha + '{3}(-' + alpha + '{3}){0,2})';
+ var language = '(' + alpha + '{2,3}(-' + extLang + ')?|' + alpha + '{4}|' +
+ alpha + '{5,8})';
+ var langTag = language + '(-' + script + ')?(-' + region + ')?(-' +
+ variant + ')*(-' + extension + ')*(-' + privateUse + ')?';
+
+ var languageTag =
+ '^(' + langTag + '|' + privateUse + '|' + grandfathered + ')$';
+ LANGUAGE_TAG_RE = new GlobalRegExp(languageTag, 'i');
+}
+
+var resolvedAccessor = {
+ get() {
+ %IncrementUseCounter(kIntlResolved);
+ return this[resolvedSymbol];
+ },
+ set(value) {
+ this[resolvedSymbol] = value;
+ }
+};
+
+/**
+ * Initializes the given object so it's a valid Collator instance.
+ * Useful for subclassing.
+ */
+function initializeCollator(collator, locales, options) {
+ if (%IsInitializedIntlObject(collator)) {
+ throw MakeTypeError(kReinitializeIntl, "Collator");
+ }
+
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ }
+
+ var getOption = getGetOption(options, 'collator');
+
+ var internalOptions = {};
+
+ defineWEProperty(internalOptions, 'usage', getOption(
+ 'usage', 'string', ['sort', 'search'], 'sort'));
+
+ var sensitivity = getOption('sensitivity', 'string',
+ ['base', 'accent', 'case', 'variant']);
+ if (IS_UNDEFINED(sensitivity) && internalOptions.usage === 'sort') {
+ sensitivity = 'variant';
+ }
+ defineWEProperty(internalOptions, 'sensitivity', sensitivity);
+
+ defineWEProperty(internalOptions, 'ignorePunctuation', getOption(
+ 'ignorePunctuation', 'boolean', UNDEFINED, false));
+
+ var locale = resolveLocale('collator', locales, options);
+
+ // ICU can't take kb, kc... parameters through localeID, so we need to pass
+ // them as options.
+ // One exception is -co- which has to be part of the extension, but only for
+ // usage: sort, and its value can't be 'standard' or 'search'.
+ var extensionMap = parseExtension(locale.extension);
+
+ /**
+ * Map of Unicode extensions to option properties, and their values and types,
+ * for a collator.
+ */
+ var COLLATOR_KEY_MAP = {
+ 'kn': {'property': 'numeric', 'type': 'boolean'},
+ 'kf': {'property': 'caseFirst', 'type': 'string',
+ 'values': ['false', 'lower', 'upper']}
+ };
+
+ setOptions(
+ options, extensionMap, COLLATOR_KEY_MAP, getOption, internalOptions);
+
+ var collation = 'default';
+ var extension = '';
+ if (%HasOwnProperty(extensionMap, 'co') && internalOptions.usage === 'sort') {
+
+ /**
+ * Allowed -u-co- values. List taken from:
+ * http://unicode.org/repos/cldr/trunk/common/bcp47/collation.xml
+ */
+ var ALLOWED_CO_VALUES = [
+ 'big5han', 'dict', 'direct', 'ducet', 'gb2312', 'phonebk', 'phonetic',
+ 'pinyin', 'reformed', 'searchjl', 'stroke', 'trad', 'unihan', 'zhuyin'
+ ];
+
+ if (%_Call(ArrayIndexOf, ALLOWED_CO_VALUES, extensionMap.co) !== -1) {
+ extension = '-u-co-' + extensionMap.co;
+ // ICU can't tell us what the collation is, so save user's input.
+ collation = extensionMap.co;
+ }
+ } else if (internalOptions.usage === 'search') {
+ extension = '-u-co-search';
+ }
+ defineWEProperty(internalOptions, 'collation', collation);
+
+ var requestedLocale = locale.locale + extension;
+
+ // We define all properties C++ code may produce, to prevent security
+ // problems. If malicious user decides to redefine Object.prototype.locale
+ // we can't just use plain x.locale = 'us' or in C++ Set("locale", "us").
+ // ObjectDefineProperties will either succeed defining or throw an error.
+ var resolved = ObjectDefineProperties({}, {
+ caseFirst: {writable: true},
+ collation: {value: internalOptions.collation, writable: true},
+ ignorePunctuation: {writable: true},
+ locale: {writable: true},
+ numeric: {writable: true},
+ requestedLocale: {value: requestedLocale, writable: true},
+ sensitivity: {writable: true},
+ strength: {writable: true},
+ usage: {value: internalOptions.usage, writable: true}
+ });
+
+ var internalCollator = %CreateCollator(requestedLocale,
+ internalOptions,
+ resolved);
+
+ // Writable, configurable and enumerable are set to false by default.
+ %MarkAsInitializedIntlObjectOfType(collator, 'collator', internalCollator);
+ collator[resolvedSymbol] = resolved;
+ ObjectDefineProperty(collator, 'resolved', resolvedAccessor);
+
+ return collator;
+}
+
+
+/**
+ * Constructs Intl.Collator object given optional locales and options
+ * parameters.
+ *
+ * @constructor
+ */
+%AddNamedProperty(Intl, 'Collator', function() {
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+
+ if (!this || this === Intl) {
+ // Constructor is called as a function.
+ return new Intl.Collator(locales, options);
+ }
+
+ return initializeCollator(TO_OBJECT(this), locales, options);
+ },
+ DONT_ENUM
+);
+
+
+/**
+ * Collator resolvedOptions method.
+ */
+%AddNamedProperty(Intl.Collator.prototype, 'resolvedOptions', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (!%IsInitializedIntlObjectOfType(this, 'collator')) {
+ throw MakeTypeError(kResolvedOptionsCalledOnNonObject, "Collator");
+ }
+
+ var coll = this;
+ var locale = getOptimalLanguageTag(coll[resolvedSymbol].requestedLocale,
+ coll[resolvedSymbol].locale);
+
+ return {
+ locale: locale,
+ usage: coll[resolvedSymbol].usage,
+ sensitivity: coll[resolvedSymbol].sensitivity,
+ ignorePunctuation: coll[resolvedSymbol].ignorePunctuation,
+ numeric: coll[resolvedSymbol].numeric,
+ caseFirst: coll[resolvedSymbol].caseFirst,
+ collation: coll[resolvedSymbol].collation
+ };
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.Collator.prototype.resolvedOptions, 'resolvedOptions');
+%FunctionRemovePrototype(Intl.Collator.prototype.resolvedOptions);
+%SetNativeFlag(Intl.Collator.prototype.resolvedOptions);
+
+
+/**
+ * Returns the subset of the given locale list for which this locale list
+ * has a matching (possibly fallback) locale. Locales appear in the same
+ * order in the returned list as in the input list.
+ * Options are optional parameter.
+ */
+%AddNamedProperty(Intl.Collator, 'supportedLocalesOf', function(locales) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ return supportedLocalesOf('collator', locales, %_Arguments(1));
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.Collator.supportedLocalesOf, 'supportedLocalesOf');
+%FunctionRemovePrototype(Intl.Collator.supportedLocalesOf);
+%SetNativeFlag(Intl.Collator.supportedLocalesOf);
+
+
+/**
+ * When the compare method is called with two arguments x and y, it returns a
+ * Number other than NaN that represents the result of a locale-sensitive
+ * String comparison of x with y.
+ * The result is intended to order String values in the sort order specified
+ * by the effective locale and collation options computed during construction
+ * of this Collator object, and will be negative, zero, or positive, depending
+ * on whether x comes before y in the sort order, the Strings are equal under
+ * the sort order, or x comes after y in the sort order, respectively.
+ */
+function compare(collator, x, y) {
+ return %InternalCompare(%GetImplFromInitializedIntlObject(collator),
+ GlobalString(x), GlobalString(y));
+};
+
+
+addBoundMethod(Intl.Collator, 'compare', compare, 2);
+
+/**
+ * Verifies that the input is a well-formed ISO 4217 currency code.
+ * Don't uppercase to test. It could convert invalid code into a valid one.
+ * For example \u00DFP (Eszett+P) becomes SSP.
+ */
+function isWellFormedCurrencyCode(currency) {
+ return typeof currency == "string" &&
+ currency.length == 3 &&
+ %_Call(StringMatch, currency, /[^A-Za-z]/) == null;
+}
+
+
+/**
+ * Returns the valid digit count for a property, or throws RangeError on
+ * a value out of the range.
+ */
+function getNumberOption(options, property, min, max, fallback) {
+ var value = options[property];
+ if (!IS_UNDEFINED(value)) {
+ value = GlobalNumber(value);
+ if (IsNaN(value) || value < min || value > max) {
+ throw MakeRangeError(kPropertyValueOutOfRange, property);
+ }
+ return MathFloor(value);
+ }
+
+ return fallback;
+}
+
+var patternAccessor = {
+ get() {
+ %IncrementUseCounter(kIntlPattern);
+ return this[patternSymbol];
+ },
+ set(value) {
+ this[patternSymbol] = value;
+ }
+};
+
+/**
+ * Initializes the given object so it's a valid NumberFormat instance.
+ * Useful for subclassing.
+ */
+function initializeNumberFormat(numberFormat, locales, options) {
+ if (%IsInitializedIntlObject(numberFormat)) {
+ throw MakeTypeError(kReinitializeIntl, "NumberFormat");
+ }
+
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ }
+
+ var getOption = getGetOption(options, 'numberformat');
+
+ var locale = resolveLocale('numberformat', locales, options);
+
+ var internalOptions = {};
+ defineWEProperty(internalOptions, 'style', getOption(
+ 'style', 'string', ['decimal', 'percent', 'currency'], 'decimal'));
+
+ var currency = getOption('currency', 'string');
+ if (!IS_UNDEFINED(currency) && !isWellFormedCurrencyCode(currency)) {
+ throw MakeRangeError(kInvalidCurrencyCode, currency);
+ }
+
+ if (internalOptions.style === 'currency' && IS_UNDEFINED(currency)) {
+ throw MakeTypeError(kCurrencyCode);
+ }
+
+ var currencyDisplay = getOption(
+ 'currencyDisplay', 'string', ['code', 'symbol', 'name'], 'symbol');
+ if (internalOptions.style === 'currency') {
+ defineWEProperty(internalOptions, 'currency', %StringToUpperCase(currency));
+ defineWEProperty(internalOptions, 'currencyDisplay', currencyDisplay);
+ }
+
+ // Digit ranges.
+ var mnid = getNumberOption(options, 'minimumIntegerDigits', 1, 21, 1);
+ defineWEProperty(internalOptions, 'minimumIntegerDigits', mnid);
+
+ var mnfd = options['minimumFractionDigits'];
+ var mxfd = options['maximumFractionDigits'];
+ if (!IS_UNDEFINED(mnfd) || internalOptions.style !== 'currency') {
+ mnfd = getNumberOption(options, 'minimumFractionDigits', 0, 20, 0);
+ defineWEProperty(internalOptions, 'minimumFractionDigits', mnfd);
+ }
+
+ if (!IS_UNDEFINED(mxfd) || internalOptions.style !== 'currency') {
+ var min_mxfd = internalOptions.style === 'percent' ? 0 : 3;
+ mnfd = IS_UNDEFINED(mnfd) ? 0 : mnfd;
+ var fallback_limit = (mnfd > min_mxfd) ? mnfd : min_mxfd;
+ mxfd = getNumberOption(options, 'maximumFractionDigits', mnfd, 20, fallback_limit);
+ defineWEProperty(internalOptions, 'maximumFractionDigits', mxfd);
+ }
+
+ var mnsd = options['minimumSignificantDigits'];
+ var mxsd = options['maximumSignificantDigits'];
+ if (!IS_UNDEFINED(mnsd) || !IS_UNDEFINED(mxsd)) {
+ mnsd = getNumberOption(options, 'minimumSignificantDigits', 1, 21, 0);
+ defineWEProperty(internalOptions, 'minimumSignificantDigits', mnsd);
+
+ mxsd = getNumberOption(options, 'maximumSignificantDigits', mnsd, 21, 21);
+ defineWEProperty(internalOptions, 'maximumSignificantDigits', mxsd);
+ }
+
+ // Grouping.
+ defineWEProperty(internalOptions, 'useGrouping', getOption(
+ 'useGrouping', 'boolean', UNDEFINED, true));
+
+ // ICU prefers options to be passed using -u- extension key/values for
+ // number format, so we need to build that.
+ var extensionMap = parseExtension(locale.extension);
+
+ /**
+ * Map of Unicode extensions to option properties, and their values and types,
+ * for a number format.
+ */
+ var NUMBER_FORMAT_KEY_MAP = {
+ 'nu': {'property': UNDEFINED, 'type': 'string'}
+ };
+
+ var extension = setOptions(options, extensionMap, NUMBER_FORMAT_KEY_MAP,
+ getOption, internalOptions);
+
+ var requestedLocale = locale.locale + extension;
+ var resolved = ObjectDefineProperties({}, {
+ currency: {writable: true},
+ currencyDisplay: {writable: true},
+ locale: {writable: true},
+ maximumFractionDigits: {writable: true},
+ minimumFractionDigits: {writable: true},
+ minimumIntegerDigits: {writable: true},
+ numberingSystem: {writable: true},
+ pattern: patternAccessor,
+ requestedLocale: {value: requestedLocale, writable: true},
+ style: {value: internalOptions.style, writable: true},
+ useGrouping: {writable: true}
+ });
+ if (%HasOwnProperty(internalOptions, 'minimumSignificantDigits')) {
+ defineWEProperty(resolved, 'minimumSignificantDigits', UNDEFINED);
+ }
+ if (%HasOwnProperty(internalOptions, 'maximumSignificantDigits')) {
+ defineWEProperty(resolved, 'maximumSignificantDigits', UNDEFINED);
+ }
+ var formatter = %CreateNumberFormat(requestedLocale,
+ internalOptions,
+ resolved);
+
+ if (internalOptions.style === 'currency') {
+ ObjectDefineProperty(resolved, 'currencyDisplay', {value: currencyDisplay,
+ writable: true});
+ }
+
+ %MarkAsInitializedIntlObjectOfType(numberFormat, 'numberformat', formatter);
+ numberFormat[resolvedSymbol] = resolved;
+ ObjectDefineProperty(numberFormat, 'resolved', resolvedAccessor);
+
+ return numberFormat;
+}
+
+
+/**
+ * Constructs Intl.NumberFormat object given optional locales and options
+ * parameters.
+ *
+ * @constructor
+ */
+%AddNamedProperty(Intl, 'NumberFormat', function() {
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+
+ if (!this || this === Intl) {
+ // Constructor is called as a function.
+ return new Intl.NumberFormat(locales, options);
+ }
+
+ return initializeNumberFormat(TO_OBJECT(this), locales, options);
+ },
+ DONT_ENUM
+);
+
+
+/**
+ * NumberFormat resolvedOptions method.
+ */
+%AddNamedProperty(Intl.NumberFormat.prototype, 'resolvedOptions', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (!%IsInitializedIntlObjectOfType(this, 'numberformat')) {
+ throw MakeTypeError(kResolvedOptionsCalledOnNonObject, "NumberFormat");
+ }
+
+ var format = this;
+ var locale = getOptimalLanguageTag(format[resolvedSymbol].requestedLocale,
+ format[resolvedSymbol].locale);
+
+ var result = {
+ locale: locale,
+ numberingSystem: format[resolvedSymbol].numberingSystem,
+ style: format[resolvedSymbol].style,
+ useGrouping: format[resolvedSymbol].useGrouping,
+ minimumIntegerDigits: format[resolvedSymbol].minimumIntegerDigits,
+ minimumFractionDigits: format[resolvedSymbol].minimumFractionDigits,
+ maximumFractionDigits: format[resolvedSymbol].maximumFractionDigits,
+ };
+
+ if (result.style === 'currency') {
+ defineWECProperty(result, 'currency', format[resolvedSymbol].currency);
+ defineWECProperty(result, 'currencyDisplay',
+ format[resolvedSymbol].currencyDisplay);
+ }
+
+ if (%HasOwnProperty(format[resolvedSymbol], 'minimumSignificantDigits')) {
+ defineWECProperty(result, 'minimumSignificantDigits',
+ format[resolvedSymbol].minimumSignificantDigits);
+ }
+
+ if (%HasOwnProperty(format[resolvedSymbol], 'maximumSignificantDigits')) {
+ defineWECProperty(result, 'maximumSignificantDigits',
+ format[resolvedSymbol].maximumSignificantDigits);
+ }
+
+ return result;
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.NumberFormat.prototype.resolvedOptions,
+ 'resolvedOptions');
+%FunctionRemovePrototype(Intl.NumberFormat.prototype.resolvedOptions);
+%SetNativeFlag(Intl.NumberFormat.prototype.resolvedOptions);
+
+
+/**
+ * Returns the subset of the given locale list for which this locale list
+ * has a matching (possibly fallback) locale. Locales appear in the same
+ * order in the returned list as in the input list.
+ * Options are optional parameter.
+ */
+%AddNamedProperty(Intl.NumberFormat, 'supportedLocalesOf', function(locales) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ return supportedLocalesOf('numberformat', locales, %_Arguments(1));
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.NumberFormat.supportedLocalesOf, 'supportedLocalesOf');
+%FunctionRemovePrototype(Intl.NumberFormat.supportedLocalesOf);
+%SetNativeFlag(Intl.NumberFormat.supportedLocalesOf);
+
+
+/**
+ * Returns a String value representing the result of calling ToNumber(value)
+ * according to the effective locale and the formatting options of this
+ * NumberFormat.
+ */
+function formatNumber(formatter, value) {
+ // Spec treats -0 and +0 as 0.
+ var number = TO_NUMBER(value) + 0;
+
+ return %InternalNumberFormat(%GetImplFromInitializedIntlObject(formatter),
+ number);
+}
+
+
+/**
+ * Returns a Number that represents string value that was passed in.
+ */
+function parseNumber(formatter, value) {
+ return %InternalNumberParse(%GetImplFromInitializedIntlObject(formatter),
+ GlobalString(value));
+}
+
+
+addBoundMethod(Intl.NumberFormat, 'format', formatNumber, 1);
+addBoundMethod(Intl.NumberFormat, 'v8Parse', parseNumber, 1);
+
+/**
+ * Returns a string that matches LDML representation of the options object.
+ */
+function toLDMLString(options) {
+ var getOption = getGetOption(options, 'dateformat');
+
+ var ldmlString = '';
+
+ var option = getOption('weekday', 'string', ['narrow', 'short', 'long']);
+ ldmlString += appendToLDMLString(
+ option, {narrow: 'EEEEE', short: 'EEE', long: 'EEEE'});
+
+ option = getOption('era', 'string', ['narrow', 'short', 'long']);
+ ldmlString += appendToLDMLString(
+ option, {narrow: 'GGGGG', short: 'GGG', long: 'GGGG'});
+
+ option = getOption('year', 'string', ['2-digit', 'numeric']);
+ ldmlString += appendToLDMLString(option, {'2-digit': 'yy', 'numeric': 'y'});
+
+ option = getOption('month', 'string',
+ ['2-digit', 'numeric', 'narrow', 'short', 'long']);
+ ldmlString += appendToLDMLString(option, {'2-digit': 'MM', 'numeric': 'M',
+ 'narrow': 'MMMMM', 'short': 'MMM', 'long': 'MMMM'});
+
+ option = getOption('day', 'string', ['2-digit', 'numeric']);
+ ldmlString += appendToLDMLString(
+ option, {'2-digit': 'dd', 'numeric': 'd'});
+
+ var hr12 = getOption('hour12', 'boolean');
+ option = getOption('hour', 'string', ['2-digit', 'numeric']);
+ if (IS_UNDEFINED(hr12)) {
+ ldmlString += appendToLDMLString(option, {'2-digit': 'jj', 'numeric': 'j'});
+ } else if (hr12 === true) {
+ ldmlString += appendToLDMLString(option, {'2-digit': 'hh', 'numeric': 'h'});
+ } else {
+ ldmlString += appendToLDMLString(option, {'2-digit': 'HH', 'numeric': 'H'});
+ }
+
+ option = getOption('minute', 'string', ['2-digit', 'numeric']);
+ ldmlString += appendToLDMLString(option, {'2-digit': 'mm', 'numeric': 'm'});
+
+ option = getOption('second', 'string', ['2-digit', 'numeric']);
+ ldmlString += appendToLDMLString(option, {'2-digit': 'ss', 'numeric': 's'});
+
+ option = getOption('timeZoneName', 'string', ['short', 'long']);
+ ldmlString += appendToLDMLString(option, {short: 'z', long: 'zzzz'});
+
+ return ldmlString;
+}
+
+
+/**
+ * Returns either LDML equivalent of the current option or empty string.
+ */
+function appendToLDMLString(option, pairs) {
+ if (!IS_UNDEFINED(option)) {
+ return pairs[option];
+ } else {
+ return '';
+ }
+}
+
+
+/**
+ * Returns object that matches LDML representation of the date.
+ */
+function fromLDMLString(ldmlString) {
+ // First remove '' quoted text, so we lose 'Uhr' strings.
+ ldmlString = %_Call(StringReplace, ldmlString, GetQuotedStringRE(), '');
+
+ var options = {};
+ var match = %_Call(StringMatch, ldmlString, /E{3,5}/g);
+ options = appendToDateTimeObject(
+ options, 'weekday', match, {EEEEE: 'narrow', EEE: 'short', EEEE: 'long'});
+
+ match = %_Call(StringMatch, ldmlString, /G{3,5}/g);
+ options = appendToDateTimeObject(
+ options, 'era', match, {GGGGG: 'narrow', GGG: 'short', GGGG: 'long'});
+
+ match = %_Call(StringMatch, ldmlString, /y{1,2}/g);
+ options = appendToDateTimeObject(
+ options, 'year', match, {y: 'numeric', yy: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /M{1,5}/g);
+ options = appendToDateTimeObject(options, 'month', match, {MM: '2-digit',
+ M: 'numeric', MMMMM: 'narrow', MMM: 'short', MMMM: 'long'});
+
+ // Sometimes we get L instead of M for month - standalone name.
+ match = %_Call(StringMatch, ldmlString, /L{1,5}/g);
+ options = appendToDateTimeObject(options, 'month', match, {LL: '2-digit',
+ L: 'numeric', LLLLL: 'narrow', LLL: 'short', LLLL: 'long'});
+
+ match = %_Call(StringMatch, ldmlString, /d{1,2}/g);
+ options = appendToDateTimeObject(
+ options, 'day', match, {d: 'numeric', dd: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /h{1,2}/g);
+ if (match !== null) {
+ options['hour12'] = true;
+ }
+ options = appendToDateTimeObject(
+ options, 'hour', match, {h: 'numeric', hh: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /H{1,2}/g);
+ if (match !== null) {
+ options['hour12'] = false;
+ }
+ options = appendToDateTimeObject(
+ options, 'hour', match, {H: 'numeric', HH: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /m{1,2}/g);
+ options = appendToDateTimeObject(
+ options, 'minute', match, {m: 'numeric', mm: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /s{1,2}/g);
+ options = appendToDateTimeObject(
+ options, 'second', match, {s: 'numeric', ss: '2-digit'});
+
+ match = %_Call(StringMatch, ldmlString, /z|zzzz/g);
+ options = appendToDateTimeObject(
+ options, 'timeZoneName', match, {z: 'short', zzzz: 'long'});
+
+ return options;
+}
+
+
+function appendToDateTimeObject(options, option, match, pairs) {
+ if (IS_NULL(match)) {
+ if (!%HasOwnProperty(options, option)) {
+ defineWEProperty(options, option, UNDEFINED);
+ }
+ return options;
+ }
+
+ var property = match[0];
+ defineWEProperty(options, option, pairs[property]);
+
+ return options;
+}
+
+
+/**
+ * Returns options with at least default values in it.
+ */
+function toDateTimeOptions(options, required, defaults) {
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ } else {
+ options = TO_OBJECT(options);
+ }
+
+ var needsDefault = true;
+ if ((required === 'date' || required === 'any') &&
+ (!IS_UNDEFINED(options.weekday) || !IS_UNDEFINED(options.year) ||
+ !IS_UNDEFINED(options.month) || !IS_UNDEFINED(options.day))) {
+ needsDefault = false;
+ }
+
+ if ((required === 'time' || required === 'any') &&
+ (!IS_UNDEFINED(options.hour) || !IS_UNDEFINED(options.minute) ||
+ !IS_UNDEFINED(options.second))) {
+ needsDefault = false;
+ }
+
+ if (needsDefault && (defaults === 'date' || defaults === 'all')) {
+ ObjectDefineProperty(options, 'year', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ ObjectDefineProperty(options, 'month', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ ObjectDefineProperty(options, 'day', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ }
+
+ if (needsDefault && (defaults === 'time' || defaults === 'all')) {
+ ObjectDefineProperty(options, 'hour', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ ObjectDefineProperty(options, 'minute', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ ObjectDefineProperty(options, 'second', {value: 'numeric',
+ writable: true,
+ enumerable: true,
+ configurable: true});
+ }
+
+ return options;
+}
+
+
+/**
+ * Initializes the given object so it's a valid DateTimeFormat instance.
+ * Useful for subclassing.
+ */
+function initializeDateTimeFormat(dateFormat, locales, options) {
+
+ if (%IsInitializedIntlObject(dateFormat)) {
+ throw MakeTypeError(kReinitializeIntl, "DateTimeFormat");
+ }
+
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ }
+
+ var locale = resolveLocale('dateformat', locales, options);
+
+ options = toDateTimeOptions(options, 'any', 'date');
+
+ var getOption = getGetOption(options, 'dateformat');
+
+ // We implement only best fit algorithm, but still need to check
+ // if the formatMatcher values are in range.
+ var matcher = getOption('formatMatcher', 'string',
+ ['basic', 'best fit'], 'best fit');
+
+ // Build LDML string for the skeleton that we pass to the formatter.
+ var ldmlString = toLDMLString(options);
+
+ // Filter out supported extension keys so we know what to put in resolved
+ // section later on.
+ // We need to pass calendar and number system to the method.
+ var tz = canonicalizeTimeZoneID(options.timeZone);
+
+ // ICU prefers options to be passed using -u- extension key/values, so
+ // we need to build that.
+ var internalOptions = {};
+ var extensionMap = parseExtension(locale.extension);
+
+ /**
+ * Map of Unicode extensions to option properties, and their values and types,
+ * for a date/time format.
+ */
+ var DATETIME_FORMAT_KEY_MAP = {
+ 'ca': {'property': UNDEFINED, 'type': 'string'},
+ 'nu': {'property': UNDEFINED, 'type': 'string'}
+ };
+
+ var extension = setOptions(options, extensionMap, DATETIME_FORMAT_KEY_MAP,
+ getOption, internalOptions);
+
+ var requestedLocale = locale.locale + extension;
+ var resolved = ObjectDefineProperties({}, {
+ calendar: {writable: true},
+ day: {writable: true},
+ era: {writable: true},
+ hour12: {writable: true},
+ hour: {writable: true},
+ locale: {writable: true},
+ minute: {writable: true},
+ month: {writable: true},
+ numberingSystem: {writable: true},
+ [patternSymbol]: {writable: true},
+ pattern: patternAccessor,
+ requestedLocale: {value: requestedLocale, writable: true},
+ second: {writable: true},
+ timeZone: {writable: true},
+ timeZoneName: {writable: true},
+ tz: {value: tz, writable: true},
+ weekday: {writable: true},
+ year: {writable: true}
+ });
+
+ var formatter = %CreateDateTimeFormat(
+ requestedLocale, {skeleton: ldmlString, timeZone: tz}, resolved);
+
+ if (resolved.timeZone === "Etc/Unknown") {
+ throw MakeRangeError(kUnsupportedTimeZone, tz);
+ }
+
+ %MarkAsInitializedIntlObjectOfType(dateFormat, 'dateformat', formatter);
+ dateFormat[resolvedSymbol] = resolved;
+ ObjectDefineProperty(dateFormat, 'resolved', resolvedAccessor);
+
+ return dateFormat;
+}
+
+
+/**
+ * Constructs Intl.DateTimeFormat object given optional locales and options
+ * parameters.
+ *
+ * @constructor
+ */
+%AddNamedProperty(Intl, 'DateTimeFormat', function() {
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+
+ if (!this || this === Intl) {
+ // Constructor is called as a function.
+ return new Intl.DateTimeFormat(locales, options);
+ }
+
+ return initializeDateTimeFormat(TO_OBJECT(this), locales, options);
+ },
+ DONT_ENUM
+);
+
+
+/**
+ * DateTimeFormat resolvedOptions method.
+ */
+%AddNamedProperty(Intl.DateTimeFormat.prototype, 'resolvedOptions', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (!%IsInitializedIntlObjectOfType(this, 'dateformat')) {
+ throw MakeTypeError(kResolvedOptionsCalledOnNonObject, "DateTimeFormat");
+ }
+
+ /**
+ * Maps ICU calendar names into LDML type.
+ */
+ var ICU_CALENDAR_MAP = {
+ 'gregorian': 'gregory',
+ 'japanese': 'japanese',
+ 'buddhist': 'buddhist',
+ 'roc': 'roc',
+ 'persian': 'persian',
+ 'islamic-civil': 'islamicc',
+ 'islamic': 'islamic',
+ 'hebrew': 'hebrew',
+ 'chinese': 'chinese',
+ 'indian': 'indian',
+ 'coptic': 'coptic',
+ 'ethiopic': 'ethiopic',
+ 'ethiopic-amete-alem': 'ethioaa'
+ };
+
+ var format = this;
+ var fromPattern = fromLDMLString(format[resolvedSymbol][patternSymbol]);
+ var userCalendar = ICU_CALENDAR_MAP[format[resolvedSymbol].calendar];
+ if (IS_UNDEFINED(userCalendar)) {
+ // Use ICU name if we don't have a match. It shouldn't happen, but
+ // it would be too strict to throw for this.
+ userCalendar = format[resolvedSymbol].calendar;
+ }
+
+ var locale = getOptimalLanguageTag(format[resolvedSymbol].requestedLocale,
+ format[resolvedSymbol].locale);
+
+ var result = {
+ locale: locale,
+ numberingSystem: format[resolvedSymbol].numberingSystem,
+ calendar: userCalendar,
+ timeZone: format[resolvedSymbol].timeZone
+ };
+
+ addWECPropertyIfDefined(result, 'timeZoneName', fromPattern.timeZoneName);
+ addWECPropertyIfDefined(result, 'era', fromPattern.era);
+ addWECPropertyIfDefined(result, 'year', fromPattern.year);
+ addWECPropertyIfDefined(result, 'month', fromPattern.month);
+ addWECPropertyIfDefined(result, 'day', fromPattern.day);
+ addWECPropertyIfDefined(result, 'weekday', fromPattern.weekday);
+ addWECPropertyIfDefined(result, 'hour12', fromPattern.hour12);
+ addWECPropertyIfDefined(result, 'hour', fromPattern.hour);
+ addWECPropertyIfDefined(result, 'minute', fromPattern.minute);
+ addWECPropertyIfDefined(result, 'second', fromPattern.second);
+
+ return result;
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.DateTimeFormat.prototype.resolvedOptions,
+ 'resolvedOptions');
+%FunctionRemovePrototype(Intl.DateTimeFormat.prototype.resolvedOptions);
+%SetNativeFlag(Intl.DateTimeFormat.prototype.resolvedOptions);
+
+
+/**
+ * Returns the subset of the given locale list for which this locale list
+ * has a matching (possibly fallback) locale. Locales appear in the same
+ * order in the returned list as in the input list.
+ * Options are optional parameter.
+ */
+%AddNamedProperty(Intl.DateTimeFormat, 'supportedLocalesOf', function(locales) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ return supportedLocalesOf('dateformat', locales, %_Arguments(1));
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.DateTimeFormat.supportedLocalesOf, 'supportedLocalesOf');
+%FunctionRemovePrototype(Intl.DateTimeFormat.supportedLocalesOf);
+%SetNativeFlag(Intl.DateTimeFormat.supportedLocalesOf);
+
+
+/**
+ * Returns a String value representing the result of calling ToNumber(date)
+ * according to the effective locale and the formatting options of this
+ * DateTimeFormat.
+ */
+function formatDate(formatter, dateValue) {
+ var dateMs;
+ if (IS_UNDEFINED(dateValue)) {
+ dateMs = %DateCurrentTime();
+ } else {
+ dateMs = TO_NUMBER(dateValue);
+ }
+
+ if (!IsFinite(dateMs)) throw MakeRangeError(kDateRange);
+
+ return %InternalDateFormat(%GetImplFromInitializedIntlObject(formatter),
+ new GlobalDate(dateMs));
+}
+
+
+/**
+ * Returns a Date object representing the result of calling ToString(value)
+ * according to the effective locale and the formatting options of this
+ * DateTimeFormat.
+ * Returns undefined if date string cannot be parsed.
+ */
+function parseDate(formatter, value) {
+ return %InternalDateParse(%GetImplFromInitializedIntlObject(formatter),
+ GlobalString(value));
+}
+
+
+// 0 because date is optional argument.
+addBoundMethod(Intl.DateTimeFormat, 'format', formatDate, 0);
+addBoundMethod(Intl.DateTimeFormat, 'v8Parse', parseDate, 1);
+
+
+/**
+ * Returns canonical Area/Location(/Location) name, or throws an exception
+ * if the zone name is invalid IANA name.
+ */
+function canonicalizeTimeZoneID(tzID) {
+ // Skip undefined zones.
+ if (IS_UNDEFINED(tzID)) {
+ return tzID;
+ }
+
+ // Special case handling (UTC, GMT).
+ var upperID = %StringToUpperCase(tzID);
+ if (upperID === 'UTC' || upperID === 'GMT' ||
+ upperID === 'ETC/UTC' || upperID === 'ETC/GMT') {
+ return 'UTC';
+ }
+
+ // TODO(jshin): Add support for Etc/GMT[+-]([1-9]|1[0-2])
+
+ // We expect only _, '-' and / beside ASCII letters.
+ // All inputs should conform to Area/Location(/Location)* from now on.
+ var match = %_Call(StringMatch, tzID, GetTimezoneNameCheckRE());
+ if (IS_NULL(match)) throw MakeRangeError(kExpectedTimezoneID, tzID);
+
+ var result = toTitleCaseTimezoneLocation(match[1]) + '/' +
+ toTitleCaseTimezoneLocation(match[2]);
+
+ if (!IS_UNDEFINED(match[3]) && 3 < match.length) {
+ var locations = %_Call(StringSplit, match[3], '/');
+ // The 1st element is empty. Starts with i=1.
+ for (var i = 1; i < locations.length; i++) {
+ result = result + '/' + toTitleCaseTimezoneLocation(locations[i]);
+ }
+ }
+
+ return result;
+}
+
+/**
+ * Initializes the given object so it's a valid BreakIterator instance.
+ * Useful for subclassing.
+ */
+function initializeBreakIterator(iterator, locales, options) {
+ if (%IsInitializedIntlObject(iterator)) {
+ throw MakeTypeError(kReinitializeIntl, "v8BreakIterator");
+ }
+
+ if (IS_UNDEFINED(options)) {
+ options = {};
+ }
+
+ var getOption = getGetOption(options, 'breakiterator');
+
+ var internalOptions = {};
+
+ defineWEProperty(internalOptions, 'type', getOption(
+ 'type', 'string', ['character', 'word', 'sentence', 'line'], 'word'));
+
+ var locale = resolveLocale('breakiterator', locales, options);
+ var resolved = ObjectDefineProperties({}, {
+ requestedLocale: {value: locale.locale, writable: true},
+ type: {value: internalOptions.type, writable: true},
+ locale: {writable: true}
+ });
+
+ var internalIterator = %CreateBreakIterator(locale.locale,
+ internalOptions,
+ resolved);
+
+ %MarkAsInitializedIntlObjectOfType(iterator, 'breakiterator',
+ internalIterator);
+ iterator[resolvedSymbol] = resolved;
+ ObjectDefineProperty(iterator, 'resolved', resolvedAccessor);
+
+ return iterator;
+}
+
+
+/**
+ * Constructs Intl.v8BreakIterator object given optional locales and options
+ * parameters.
+ *
+ * @constructor
+ */
+%AddNamedProperty(Intl, 'v8BreakIterator', function() {
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+
+ if (!this || this === Intl) {
+ // Constructor is called as a function.
+ return new Intl.v8BreakIterator(locales, options);
+ }
+
+ return initializeBreakIterator(TO_OBJECT(this), locales, options);
+ },
+ DONT_ENUM
+);
+
+
+/**
+ * BreakIterator resolvedOptions method.
+ */
+%AddNamedProperty(Intl.v8BreakIterator.prototype, 'resolvedOptions',
+ function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (!%IsInitializedIntlObjectOfType(this, 'breakiterator')) {
+ throw MakeTypeError(kResolvedOptionsCalledOnNonObject, "v8BreakIterator");
+ }
+
+ var segmenter = this;
+ var locale =
+ getOptimalLanguageTag(segmenter[resolvedSymbol].requestedLocale,
+ segmenter[resolvedSymbol].locale);
+
+ return {
+ locale: locale,
+ type: segmenter[resolvedSymbol].type
+ };
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.v8BreakIterator.prototype.resolvedOptions,
+ 'resolvedOptions');
+%FunctionRemovePrototype(Intl.v8BreakIterator.prototype.resolvedOptions);
+%SetNativeFlag(Intl.v8BreakIterator.prototype.resolvedOptions);
+
+
+/**
+ * Returns the subset of the given locale list for which this locale list
+ * has a matching (possibly fallback) locale. Locales appear in the same
+ * order in the returned list as in the input list.
+ * Options are optional parameter.
+ */
+%AddNamedProperty(Intl.v8BreakIterator, 'supportedLocalesOf',
+ function(locales) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ return supportedLocalesOf('breakiterator', locales, %_Arguments(1));
+ },
+ DONT_ENUM
+);
+%FunctionSetName(Intl.v8BreakIterator.supportedLocalesOf, 'supportedLocalesOf');
+%FunctionRemovePrototype(Intl.v8BreakIterator.supportedLocalesOf);
+%SetNativeFlag(Intl.v8BreakIterator.supportedLocalesOf);
+
+
+/**
+ * Adopts text to segment using the iterator. Old text, if present,
+ * gets discarded.
+ */
+function adoptText(iterator, text) {
+ %BreakIteratorAdoptText(%GetImplFromInitializedIntlObject(iterator),
+ GlobalString(text));
+}
+
+
+/**
+ * Returns index of the first break in the string and moves current pointer.
+ */
+function first(iterator) {
+ return %BreakIteratorFirst(%GetImplFromInitializedIntlObject(iterator));
+}
+
+
+/**
+ * Returns the index of the next break and moves the pointer.
+ */
+function next(iterator) {
+ return %BreakIteratorNext(%GetImplFromInitializedIntlObject(iterator));
+}
+
+
+/**
+ * Returns index of the current break.
+ */
+function current(iterator) {
+ return %BreakIteratorCurrent(%GetImplFromInitializedIntlObject(iterator));
+}
+
+
+/**
+ * Returns type of the current break.
+ */
+function breakType(iterator) {
+ return %BreakIteratorBreakType(%GetImplFromInitializedIntlObject(iterator));
+}
+
+
+addBoundMethod(Intl.v8BreakIterator, 'adoptText', adoptText, 1);
+addBoundMethod(Intl.v8BreakIterator, 'first', first, 0);
+addBoundMethod(Intl.v8BreakIterator, 'next', next, 0);
+addBoundMethod(Intl.v8BreakIterator, 'current', current, 0);
+addBoundMethod(Intl.v8BreakIterator, 'breakType', breakType, 0);
+
+// Save references to Intl objects and methods we use, for added security.
+var savedObjects = {
+ 'collator': Intl.Collator,
+ 'numberformat': Intl.NumberFormat,
+ 'dateformatall': Intl.DateTimeFormat,
+ 'dateformatdate': Intl.DateTimeFormat,
+ 'dateformattime': Intl.DateTimeFormat
+};
+
+
+// Default (created with undefined locales and options parameters) collator,
+// number and date format instances. They'll be created as needed.
+var defaultObjects = {
+ 'collator': UNDEFINED,
+ 'numberformat': UNDEFINED,
+ 'dateformatall': UNDEFINED,
+ 'dateformatdate': UNDEFINED,
+ 'dateformattime': UNDEFINED,
+};
+
+
+/**
+ * Returns cached or newly created instance of a given service.
+ * We cache only default instances (where no locales or options are provided).
+ */
+function cachedOrNewService(service, locales, options, defaults) {
+ var useOptions = (IS_UNDEFINED(defaults)) ? options : defaults;
+ if (IS_UNDEFINED(locales) && IS_UNDEFINED(options)) {
+ if (IS_UNDEFINED(defaultObjects[service])) {
+ defaultObjects[service] = new savedObjects[service](locales, useOptions);
+ }
+ return defaultObjects[service];
+ }
+ return new savedObjects[service](locales, useOptions);
+}
+
+
+function OverrideFunction(object, name, f) {
+ %CheckIsBootstrapping();
+ ObjectDefineProperty(object, name, { value: f,
+ writeable: true,
+ configurable: true,
+ enumerable: false });
+ %FunctionSetName(f, name);
+ %FunctionRemovePrototype(f);
+ %SetNativeFlag(f);
+}
+
+/**
+ * Compares this and that, and returns less than 0, 0 or greater than 0 value.
+ * Overrides the built-in method.
+ */
+OverrideFunction(GlobalString.prototype, 'localeCompare', function(that) {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (IS_NULL_OR_UNDEFINED(this)) {
+ throw MakeTypeError(kMethodInvokedOnNullOrUndefined);
+ }
+
+ var locales = %_Arguments(1);
+ var options = %_Arguments(2);
+ var collator = cachedOrNewService('collator', locales, options);
+ return compare(collator, this, that);
+ }
+);
+
+
+/**
+ * Unicode normalization. This method is called with one argument that
+ * specifies the normalization form.
+ * If none is specified, "NFC" is assumed.
+ * If the form is not one of "NFC", "NFD", "NFKC", or "NFKD", then throw
+ * a RangeError Exception.
+ */
+
+OverrideFunction(GlobalString.prototype, 'normalize', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ CHECK_OBJECT_COERCIBLE(this, "String.prototype.normalize");
+ var s = TO_STRING(this);
+
+ var formArg = %_Arguments(0);
+ var form = IS_UNDEFINED(formArg) ? 'NFC' : TO_STRING(formArg);
+
+ var NORMALIZATION_FORMS = ['NFC', 'NFD', 'NFKC', 'NFKD'];
+
+ var normalizationForm = %_Call(ArrayIndexOf, NORMALIZATION_FORMS, form);
+ if (normalizationForm === -1) {
+ throw MakeRangeError(kNormalizationForm,
+ %_Call(ArrayJoin, NORMALIZATION_FORMS, ', '));
+ }
+
+ return %StringNormalize(s, normalizationForm);
+ }
+);
+
+
+/**
+ * Formats a Number object (this) using locale and options values.
+ * If locale or options are omitted, defaults are used.
+ */
+OverrideFunction(GlobalNumber.prototype, 'toLocaleString', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ if (!(this instanceof GlobalNumber) && typeof(this) !== 'number') {
+ throw MakeTypeError(kMethodInvokedOnWrongType, "Number");
+ }
+
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+ var numberFormat = cachedOrNewService('numberformat', locales, options);
+ return formatNumber(numberFormat, this);
+ }
+);
+
+
+/**
+ * Returns actual formatted date or fails if date parameter is invalid.
+ */
+function toLocaleDateTime(date, locales, options, required, defaults, service) {
+ if (!(date instanceof GlobalDate)) {
+ throw MakeTypeError(kMethodInvokedOnWrongType, "Date");
+ }
+
+ if (IsNaN(date)) return 'Invalid Date';
+
+ var internalOptions = toDateTimeOptions(options, required, defaults);
+
+ var dateFormat =
+ cachedOrNewService(service, locales, options, internalOptions);
+
+ return formatDate(dateFormat, date);
+}
+
+
+/**
+ * Formats a Date object (this) using locale and options values.
+ * If locale or options are omitted, defaults are used - both date and time are
+ * present in the output.
+ */
+OverrideFunction(GlobalDate.prototype, 'toLocaleString', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+ return toLocaleDateTime(
+ this, locales, options, 'any', 'all', 'dateformatall');
+ }
+);
+
+
+/**
+ * Formats a Date object (this) using locale and options values.
+ * If locale or options are omitted, defaults are used - only date is present
+ * in the output.
+ */
+OverrideFunction(GlobalDate.prototype, 'toLocaleDateString', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+ return toLocaleDateTime(
+ this, locales, options, 'date', 'date', 'dateformatdate');
+ }
+);
+
+
+/**
+ * Formats a Date object (this) using locale and options values.
+ * If locale or options are omitted, defaults are used - only time is present
+ * in the output.
+ */
+OverrideFunction(GlobalDate.prototype, 'toLocaleTimeString', function() {
+ if (!IS_UNDEFINED(new.target)) {
+ throw MakeTypeError(kOrdinaryFunctionCalledAsConstructor);
+ }
+
+ var locales = %_Arguments(0);
+ var options = %_Arguments(1);
+ return toLocaleDateTime(
+ this, locales, options, 'time', 'time', 'dateformattime');
+ }
+);
+
+})