| // 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 ArrayJoin; |
| var ArrayPush; |
| var GlobalDate = global.Date; |
| var GlobalIntl = global.Intl; |
| var GlobalIntlDateTimeFormat = GlobalIntl.DateTimeFormat; |
| var GlobalIntlNumberFormat = GlobalIntl.NumberFormat; |
| var GlobalIntlCollator = GlobalIntl.Collator; |
| var GlobalIntlPluralRules = GlobalIntl.PluralRules; |
| var GlobalIntlv8BreakIterator = GlobalIntl.v8BreakIterator; |
| var GlobalRegExp = global.RegExp; |
| var GlobalString = global.String; |
| var GlobalArray = global.Array; |
| var IntlFallbackSymbol = utils.ImportNow("intl_fallback_symbol"); |
| var InternalArray = utils.InternalArray; |
| var MathMax = global.Math.max; |
| var ObjectHasOwnProperty = global.Object.prototype.hasOwnProperty; |
| var ObjectKeys = global.Object.keys; |
| var resolvedSymbol = utils.ImportNow("intl_resolved_symbol"); |
| var StringSubstr = GlobalString.prototype.substr; |
| var StringSubstring = GlobalString.prototype.substring; |
| |
| utils.Import(function(from) { |
| ArrayJoin = from.ArrayJoin; |
| ArrayPush = from.ArrayPush; |
| }); |
| |
| // Utilities for definitions |
| |
| macro NUMBER_IS_NAN(arg) |
| (%IS_VAR(arg) !== arg) |
| endmacro |
| |
| // To avoid ES2015 Function name inference. |
| |
| macro ANONYMOUS_FUNCTION(fn) |
| (0, (fn)) |
| endmacro |
| |
| function IntlConstruct(receiver, constructor, create, newTarget, args, |
| compat) { |
| var locales = args[0]; |
| var options = args[1]; |
| |
| var instance = create(locales, options); |
| |
| if (compat && IS_UNDEFINED(newTarget) && receiver instanceof constructor) { |
| %object_define_property(receiver, IntlFallbackSymbol, { value: instance }); |
| return receiver; |
| } |
| |
| return instance; |
| } |
| |
| |
| |
| // ------------------------------------------------------------------- |
| |
| /** |
| * Caches available locales for each service. |
| */ |
| var AVAILABLE_LOCALES = { |
| __proto__ : null, |
| 'collator': UNDEFINED, |
| 'numberformat': UNDEFINED, |
| 'dateformat': UNDEFINED, |
| 'breakiterator': UNDEFINED, |
| 'pluralrules': UNDEFINED, |
| 'relativetimeformat': UNDEFINED, |
| 'listformat': 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; |
| } |
| |
| /** |
| * Matches valid service name. |
| */ |
| var SERVICE_RE = UNDEFINED; |
| |
| function GetServiceRE() { |
| if (IS_UNDEFINED(SERVICE_RE)) { |
| SERVICE_RE = |
| new GlobalRegExp('^(' + %_Call(ArrayJoin, ObjectKeys(AVAILABLE_LOCALES), '|') + ')$'); |
| } |
| return SERVICE_RE; |
| } |
| |
| /** |
| * Matches valid IANA time zone names. |
| */ |
| var TIMEZONE_NAME_CHECK_RE = UNDEFINED; |
| var GMT_OFFSET_TIMEZONE_NAME_CHECK_RE = UNDEFINED; |
| |
| function GetTimezoneNameCheckRE() { |
| if (IS_UNDEFINED(TIMEZONE_NAME_CHECK_RE)) { |
| TIMEZONE_NAME_CHECK_RE = new GlobalRegExp( |
| '^([A-Za-z]+)/([A-Za-z_-]+)((?:\/[A-Za-z_-]+)+)*$'); |
| } |
| return TIMEZONE_NAME_CHECK_RE; |
| } |
| |
| function GetGMTOffsetTimezoneNameCheckRE() { |
| if (IS_UNDEFINED(GMT_OFFSET_TIMEZONE_NAME_CHECK_RE)) { |
| GMT_OFFSET_TIMEZONE_NAME_CHECK_RE = new GlobalRegExp( |
| '^(?:ETC/GMT)(?<offset>0|[+-](?:[0-9]|1[0-4]))$'); |
| } |
| return GMT_OFFSET_TIMEZONE_NAME_CHECK_RE; |
| } |
| |
| /** |
| * Matches valid location parts of IANA time zone names. |
| */ |
| var TIMEZONE_NAME_LOCATION_PART_RE = UNDEFINED; |
| |
| function GetTimezoneNameLocationPartRE() { |
| if (IS_UNDEFINED(TIMEZONE_NAME_LOCATION_PART_RE)) { |
| TIMEZONE_NAME_LOCATION_PART_RE = |
| new GlobalRegExp('^([A-Za-z]+)((?:[_-][A-Za-z]+)+)*$'); |
| } |
| return TIMEZONE_NAME_LOCATION_PART_RE; |
| } |
| |
| |
| /** |
| * 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 %make_error(kDefaultOptionsMissing, caller); |
| |
| // Ecma 402 #sec-getoption |
| var getOption = function (property, type, values, fallback) { |
| // 1. Let value be ? Get(options, property). |
| var value = options[property]; |
| // 2. If value is not undefined, then |
| if (!IS_UNDEFINED(value)) { |
| switch (type) { |
| // If type is "boolean", then let value be ToBoolean(value). |
| case 'boolean': |
| value = TO_BOOLEAN(value); |
| break; |
| // If type is "string", then let value be ToString(value). |
| case 'string': |
| value = TO_STRING(value); |
| break; |
| // Assert: type is "boolean" or "string". |
| default: |
| throw %make_error(kWrongValueType); |
| } |
| |
| // d. If values is not undefined, then |
| // If values does not contain an element equal to value, throw a |
| // RangeError exception. |
| if (!IS_UNDEFINED(values) && %ArrayIndexOf(values, value, 0) === -1) { |
| throw %make_range_error(kValueOutOfRange, value, caller, property); |
| } |
| |
| return value; |
| } |
| |
| return fallback; |
| } |
| |
| return getOption; |
| } |
| |
| |
| /** |
| * Ecma 402 9.2.5 |
| * TODO(jshin): relevantExtensionKeys and localeData need to be taken into |
| * account per spec. |
| * 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; |
| } |
| |
| %InstallToContext([ |
| "resolve_locale", resolveLocale |
| ]); |
| |
| /** |
| * Look up the longest non-empty prefix of |locale| that is an element of |
| * |availableLocales|. Returns undefined when the |locale| is completely |
| * unsupported by |availableLocales|. |
| */ |
| function bestAvailableLocale(availableLocales, locale) { |
| do { |
| if (!IS_UNDEFINED(availableLocales[locale])) { |
| return locale; |
| } |
| // Truncate locale if possible. |
| var pos = %StringLastIndexOf(locale, '-'); |
| if (pos === -1) { |
| break; |
| } |
| locale = %_Call(StringSubstring, locale, 0, pos); |
| } while (true); |
| |
| return UNDEFINED; |
| } |
| |
| |
| /** |
| * Try to match any mutation of |requestedLocale| against |availableLocales|. |
| */ |
| function attemptSingleLookup(availableLocales, requestedLocale) { |
| // Remove all extensions. |
| var noExtensionsLocale = %RegExpInternalReplace( |
| GetAnyExtensionRE(), requestedLocale, ''); |
| var availableLocale = bestAvailableLocale( |
| availableLocales, requestedLocale); |
| if (!IS_UNDEFINED(availableLocale)) { |
| // Return the resolved locale and extension. |
| var extensionMatch = %regexp_internal_match( |
| GetUnicodeExtensionRE(), requestedLocale); |
| var extension = IS_NULL(extensionMatch) ? '' : extensionMatch[0]; |
| return { |
| __proto__: null, |
| locale: availableLocale, |
| extension: extension, |
| localeWithExtension: availableLocale + extension, |
| }; |
| } |
| return UNDEFINED; |
| } |
| |
| |
| /** |
| * Returns best matched supported locale and extension info using basic |
| * lookup algorithm. |
| */ |
| function lookupMatcher(service, requestedLocales) { |
| if (IS_NULL(%regexp_internal_match(GetServiceRE(), service))) { |
| throw %make_error(kWrongServiceType, service); |
| } |
| |
| var availableLocales = getAvailableLocalesOf(service); |
| |
| for (var i = 0; i < requestedLocales.length; ++i) { |
| var result = attemptSingleLookup(availableLocales, requestedLocales[i]); |
| if (!IS_UNDEFINED(result)) { |
| return result; |
| } |
| } |
| |
| var defLocale = %GetDefaultICULocale(); |
| |
| // While ECMA-402 returns defLocale directly, we have to check if it is |
| // supported, as such support is not guaranteed. |
| var result = attemptSingleLookup(availableLocales, defLocale); |
| if (!IS_UNDEFINED(result)) { |
| return result; |
| } |
| |
| // Didn't find a match, return default. |
| return { |
| __proto__: null, |
| locale: 'und', |
| extension: '', |
| localeWithExtension: 'und', |
| }; |
| } |
| |
| |
| /** |
| * 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); |
| } |
| |
| /** |
| * 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 + '-' + TO_STRING(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 (HAS_OWN_PROPERTY(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 (HAS_OWN_PROPERTY(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; |
| } |
| |
| |
| /** |
| * Given an array-like, outputs an Array with the numbered |
| * properties copied over and defined |
| * configurable: false, writable: false, enumerable: true. |
| * When |expandable| is true, the result array can be expanded. |
| */ |
| function freezeArray(input) { |
| var array = []; |
| var l = input.length; |
| for (var i = 0; i < l; i++) { |
| if (i in input) { |
| %object_define_property(array, i, {value: input[i], |
| configurable: false, |
| writable: false, |
| enumerable: true}); |
| } |
| } |
| |
| %object_define_property(array, 'length', {value: l, writable: false}); |
| return array; |
| } |
| |
| /* Make JS array[] out of InternalArray */ |
| function makeArray(input) { |
| var array = []; |
| %MoveArrayContents(input, array); |
| return array; |
| } |
| |
| /** |
| * 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) { |
| // Cache these, they don't ever change per service. |
| if (!IS_UNDEFINED(AVAILABLE_LOCALES[service])) { |
| return AVAILABLE_LOCALES[service]; |
| } |
| |
| var available = %AvailableLocalesOf(service); |
| |
| for (var i in available) { |
| if (HAS_OWN_PROPERTY(available, i)) { |
| var parts = %regexp_internal_match( |
| /^([a-z]{2,3})-([A-Z][a-z]{3})-([A-Z]{2})$/, i); |
| if (!IS_NULL(parts)) { |
| // Build xx-ZZ. We don't care about the actual value, |
| // as long it's not undefined. |
| available[parts[1] + '-' + parts[3]] = null; |
| } |
| } |
| } |
| |
| AVAILABLE_LOCALES[service] = available; |
| |
| return available; |
| } |
| |
| /** |
| * Defines a property and sets writable, enumerable and configurable to true. |
| */ |
| function defineWECProperty(object, property, value) { |
| %object_define_property(object, property, {value: value, |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| } |
| |
| /** |
| * Returns titlecased word, aMeRricA -> America. |
| */ |
| function toTitleCaseWord(word) { |
| return %StringToUpperCaseIntl(%_Call(StringSubstr, word, 0, 1)) + |
| %StringToLowerCaseIntl(%_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 = %regexp_internal_match(GetTimezoneNameLocationPartRE(), location) |
| if (IS_NULL(match)) throw %make_range_error(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 = %StringSplit(match[2], separator, kMaxUint32); |
| for (var i = 1; i < parts.length; i++) { |
| var part = parts[i] |
| var lowercasedPart = %StringToLowerCaseIntl(part); |
| result = result + separator + |
| ((lowercasedPart !== 'es' && |
| lowercasedPart !== 'of' && lowercasedPart !== 'au') ? |
| toTitleCaseWord(part) : lowercasedPart); |
| } |
| } |
| return result; |
| } |
| |
| |
| /** |
| * Returns an InternalArray where all locales are canonicalized and duplicates |
| * removed. |
| * Throws on locales that are not well formed BCP47 tags. |
| * ECMA 402 8.2.1 steps 1 (ECMA 402 9.2.1) and 2. |
| */ |
| function canonicalizeLocaleList(locales) { |
| var seen = new InternalArray(); |
| if (!IS_UNDEFINED(locales)) { |
| // We allow single string localeID. |
| if (typeof locales === 'string') { |
| %_Call(ArrayPush, seen, %CanonicalizeLanguageTag(locales)); |
| return seen; |
| } |
| |
| var o = TO_OBJECT(locales); |
| var len = TO_LENGTH(o.length); |
| |
| for (var k = 0; k < len; k++) { |
| if (k in o) { |
| var value = o[k]; |
| |
| var tag = %CanonicalizeLanguageTag(value); |
| |
| if (%ArrayIndexOf(seen, tag, 0) === -1) { |
| %_Call(ArrayPush, seen, tag); |
| } |
| } |
| } |
| } |
| |
| return seen; |
| } |
| |
| // TODO(ftang): remove the %InstallToContext once |
| // initializeLocaleList is available in C++ |
| // https://bugs.chromium.org/p/v8/issues/detail?id=7987 |
| %InstallToContext([ |
| "canonicalize_locale_list", canonicalizeLocaleList |
| ]); |
| |
| |
| function initializeLocaleList(locales) { |
| return freezeArray(canonicalizeLocaleList(locales)); |
| } |
| |
| // ECMA 402 section 8.2.1 |
| DEFINE_METHOD( |
| GlobalIntl, |
| getCanonicalLocales(locales) { |
| return makeArray(canonicalizeLocaleList(locales)); |
| } |
| ); |
| |
| /** |
| * Collator resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlCollator.prototype, |
| resolvedOptions() { |
| return %CollatorResolvedOptions(this); |
| } |
| ); |
| |
| |
| DEFINE_METHOD( |
| GlobalIntlPluralRules.prototype, |
| resolvedOptions() { |
| return %PluralRulesResolvedOptions(this); |
| } |
| ); |
| |
| DEFINE_METHOD( |
| GlobalIntlPluralRules.prototype, |
| select(value) { |
| return %PluralRulesSelect(this, TO_NUMBER(value) + 0); |
| } |
| ); |
| |
| // ECMA 402 #sec-setnfdigitoptions |
| // SetNumberFormatDigitOptions ( intlObj, options, mnfdDefault, mxfdDefault ) |
| function SetNumberFormatDigitOptions(internalOptions, options, |
| mnfdDefault, mxfdDefault) { |
| // Digit ranges. |
| var mnid = %GetNumberOption(options, 'minimumIntegerDigits', 1, 21, 1); |
| %DefineWEProperty(internalOptions, 'minimumIntegerDigits', mnid); |
| |
| var mnfd = %GetNumberOption(options, 'minimumFractionDigits', 0, 20, |
| mnfdDefault); |
| %DefineWEProperty(internalOptions, 'minimumFractionDigits', mnfd); |
| |
| var mxfdActualDefault = MathMax(mnfd, mxfdDefault); |
| |
| var mxfd = %GetNumberOption(options, 'maximumFractionDigits', mnfd, 20, |
| mxfdActualDefault); |
| |
| %DefineWEProperty(internalOptions, 'maximumFractionDigits', mxfd); |
| |
| var mnsd = options['minimumSignificantDigits']; |
| var mxsd = options['maximumSignificantDigits']; |
| if (!IS_UNDEFINED(mnsd) || !IS_UNDEFINED(mxsd)) { |
| mnsd = %DefaultNumberOption(mnsd, 1, 21, 1, 'minimumSignificantDigits'); |
| %DefineWEProperty(internalOptions, 'minimumSignificantDigits', mnsd); |
| |
| mxsd = %DefaultNumberOption(mxsd, mnsd, 21, 21, 'maximumSignificantDigits'); |
| %DefineWEProperty(internalOptions, 'maximumSignificantDigits', mxsd); |
| } |
| } |
| |
| /** |
| * Initializes the given object so it's a valid NumberFormat instance. |
| * Useful for subclassing. |
| */ |
| function CreateNumberFormat(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'numberformat'); |
| |
| var locale = resolveLocale('numberformat', locales, options); |
| |
| var internalOptions = {__proto__: null}; |
| %DefineWEProperty(internalOptions, 'style', getOption( |
| 'style', 'string', ['decimal', 'percent', 'currency'], 'decimal')); |
| |
| var currency = getOption('currency', 'string'); |
| if (!IS_UNDEFINED(currency) && !%IsWellFormedCurrencyCode(currency)) { |
| throw %make_range_error(kInvalidCurrencyCode, currency); |
| } |
| |
| if (internalOptions.style === 'currency' && IS_UNDEFINED(currency)) { |
| throw %make_type_error(kCurrencyCode); |
| } |
| |
| var mnfdDefault, mxfdDefault; |
| |
| var currencyDisplay = getOption( |
| 'currencyDisplay', 'string', ['code', 'symbol', 'name'], 'symbol'); |
| if (internalOptions.style === 'currency') { |
| %DefineWEProperty(internalOptions, 'currency', %StringToUpperCaseIntl(currency)); |
| %DefineWEProperty(internalOptions, 'currencyDisplay', currencyDisplay); |
| |
| mnfdDefault = mxfdDefault = %CurrencyDigits(internalOptions.currency); |
| } else { |
| mnfdDefault = 0; |
| mxfdDefault = internalOptions.style === 'percent' ? 0 : 3; |
| } |
| |
| SetNumberFormatDigitOptions(internalOptions, options, mnfdDefault, |
| mxfdDefault); |
| |
| // 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 = { |
| __proto__: null, |
| 'nu': {__proto__: null, 'property': UNDEFINED, 'type': 'string'} |
| }; |
| |
| var extension = setOptions(options, extensionMap, NUMBER_FORMAT_KEY_MAP, |
| getOption, internalOptions); |
| |
| var requestedLocale = locale.locale + extension; |
| var resolved = %object_define_properties({__proto__: null}, { |
| currency: {writable: true}, |
| currencyDisplay: {writable: true}, |
| locale: {writable: true}, |
| maximumFractionDigits: {writable: true}, |
| minimumFractionDigits: {writable: true}, |
| minimumIntegerDigits: {writable: true}, |
| numberingSystem: {writable: true}, |
| requestedLocale: {value: requestedLocale, writable: true}, |
| style: {value: internalOptions.style, writable: true}, |
| useGrouping: {writable: true} |
| }); |
| if (HAS_OWN_PROPERTY(internalOptions, 'minimumSignificantDigits')) { |
| %DefineWEProperty(resolved, 'minimumSignificantDigits', UNDEFINED); |
| } |
| if (HAS_OWN_PROPERTY(internalOptions, 'maximumSignificantDigits')) { |
| %DefineWEProperty(resolved, 'maximumSignificantDigits', UNDEFINED); |
| } |
| var numberFormat = %CreateNumberFormat(requestedLocale, internalOptions, |
| resolved); |
| |
| if (internalOptions.style === 'currency') { |
| %object_define_property(resolved, 'currencyDisplay', |
| {value: currencyDisplay, writable: true}); |
| } |
| |
| %MarkAsInitializedIntlObjectOfType(numberFormat, NUMBER_FORMAT_TYPE); |
| numberFormat[resolvedSymbol] = resolved; |
| |
| return numberFormat; |
| } |
| |
| |
| /** |
| * Constructs Intl.NumberFormat object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function NumberFormatConstructor() { |
| return IntlConstruct(this, GlobalIntlNumberFormat, CreateNumberFormat, |
| new.target, arguments, true); |
| } |
| %SetCode(GlobalIntlNumberFormat, NumberFormatConstructor); |
| |
| |
| /** |
| * NumberFormat resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlNumberFormat.prototype, |
| resolvedOptions() { |
| var methodName = 'resolvedOptions'; |
| if(!IS_RECEIVER(this)) { |
| throw %make_type_error(kIncompatibleMethodReceiver, methodName, this); |
| } |
| var format = %IntlUnwrapReceiver(this, NUMBER_FORMAT_TYPE, |
| GlobalIntlNumberFormat, |
| methodName, true); |
| var result = { |
| locale: format[resolvedSymbol].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 (HAS_OWN_PROPERTY(format[resolvedSymbol], 'minimumSignificantDigits')) { |
| defineWECProperty(result, 'minimumSignificantDigits', |
| format[resolvedSymbol].minimumSignificantDigits); |
| } |
| |
| if (HAS_OWN_PROPERTY(format[resolvedSymbol], 'maximumSignificantDigits')) { |
| defineWECProperty(result, 'maximumSignificantDigits', |
| format[resolvedSymbol].maximumSignificantDigits); |
| } |
| |
| return result; |
| } |
| ); |
| |
| |
| /** |
| * 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 options with at least default values in it. |
| */ |
| function toDateTimeOptions(options, required, defaults) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } else { |
| options = TO_OBJECT(options); |
| } |
| |
| options = %object_create(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')) { |
| %object_define_property(options, 'year', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'month', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'day', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| } |
| |
| if (needsDefault && (defaults === 'time' || defaults === 'all')) { |
| %object_define_property(options, 'hour', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(options, 'minute', {value: 'numeric', |
| writable: true, |
| enumerable: true, |
| configurable: true}); |
| %object_define_property(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 CreateDateTimeFormat(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| 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 = {__proto__: null}; |
| 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 = { |
| __proto__: null, |
| 'ca': {__proto__: null, 'property': UNDEFINED, 'type': 'string'}, |
| 'nu': {__proto__: null, 'property': UNDEFINED, 'type': 'string'} |
| }; |
| |
| var extension = setOptions(options, extensionMap, DATETIME_FORMAT_KEY_MAP, |
| getOption, internalOptions); |
| |
| var requestedLocale = locale.locale + extension; |
| // Still need to store locale and numberingSystem till we move the storage |
| // to JSDateTimeFormat |
| var resolved = {__proto__: null}; |
| |
| var dateFormat = %CreateDateTimeFormat( |
| requestedLocale, |
| {__proto__: null, skeleton: ldmlString, timeZone: tz}, resolved); |
| |
| %MarkAsInitializedIntlObjectOfType(dateFormat, DATE_TIME_FORMAT_TYPE); |
| |
| // Still need to store locale and numberingSystem till we move the storage |
| // to JSDateTimeFormat |
| dateFormat[resolvedSymbol] = resolved; |
| |
| return dateFormat; |
| } |
| |
| |
| /** |
| * Constructs Intl.DateTimeFormat object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function DateTimeFormatConstructor() { |
| return IntlConstruct(this, GlobalIntlDateTimeFormat, CreateDateTimeFormat, |
| new.target, arguments, true); |
| } |
| %SetCode(GlobalIntlDateTimeFormat, DateTimeFormatConstructor); |
| |
| /** |
| * DateTimeFormat resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlDateTimeFormat.prototype, |
| resolvedOptions() { |
| return %DateTimeFormatResolvedOptions(this); |
| } |
| ); |
| |
| |
| /** |
| * 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; |
| } |
| |
| // Convert zone name to string. |
| tzID = TO_STRING(tzID); |
| |
| // Special case handling (UTC, GMT). |
| var upperID = %StringToUpperCaseIntl(tzID); |
| if (upperID === 'UTC' || upperID === 'GMT' || |
| upperID === 'ETC/UTC' || upperID === 'ETC/GMT') { |
| return 'UTC'; |
| } |
| |
| // We expect only _, '-' and / beside ASCII letters. |
| // All inputs should conform to Area/Location(/Location)*, or Etc/GMT* . |
| // TODO(jshin): 1. Support 'GB-Eire", 'EST5EDT", "ROK', 'US/*', 'NZ' and many |
| // other aliases/linked names when moving timezone validation code to C++. |
| // See crbug.com/364374 and crbug.com/v8/8007 . |
| // 2. Resolve the difference betwee CLDR/ICU and IANA time zone db. |
| // See http://unicode.org/cldr/trac/ticket/9892 and crbug.com/645807 . |
| let match = %regexp_internal_match(GetTimezoneNameCheckRE(), tzID); |
| if (IS_NULL(match)) { |
| let match = |
| %regexp_internal_match(GetGMTOffsetTimezoneNameCheckRE(), upperID); |
| if (!IS_NULL(match) && match.length == 2) |
| return "Etc/GMT" + match.groups.offset; |
| else |
| throw %make_range_error(kInvalidTimeZone, tzID); |
| } |
| |
| let result = toTitleCaseTimezoneLocation(match[1]) + '/' + |
| toTitleCaseTimezoneLocation(match[2]); |
| |
| if (!IS_UNDEFINED(match[3]) && 3 < match.length) { |
| let locations = %StringSplit(match[3], '/', kMaxUint32); |
| // 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 CreateBreakIterator(locales, options) { |
| if (IS_UNDEFINED(options)) { |
| options = {__proto__: null}; |
| } |
| |
| var getOption = getGetOption(options, 'breakiterator'); |
| |
| var internalOptions = {__proto__: null}; |
| |
| %DefineWEProperty(internalOptions, 'type', getOption( |
| 'type', 'string', ['character', 'word', 'sentence', 'line'], 'word')); |
| |
| var locale = resolveLocale('breakiterator', locales, options); |
| var resolved = %object_define_properties({__proto__: null}, { |
| requestedLocale: {value: locale.locale, writable: true}, |
| type: {value: internalOptions.type, writable: true}, |
| locale: {writable: true} |
| }); |
| |
| var iterator = %CreateBreakIterator(locale.locale, internalOptions, resolved); |
| |
| %MarkAsInitializedIntlObjectOfType(iterator, BREAK_ITERATOR_TYPE); |
| iterator[resolvedSymbol] = resolved; |
| |
| return iterator; |
| } |
| |
| |
| /** |
| * Constructs Intl.v8BreakIterator object given optional locales and options |
| * parameters. |
| * |
| * @constructor |
| */ |
| function v8BreakIteratorConstructor() { |
| return IntlConstruct(this, GlobalIntlv8BreakIterator, CreateBreakIterator, |
| new.target, arguments); |
| } |
| %SetCode(GlobalIntlv8BreakIterator, v8BreakIteratorConstructor); |
| |
| |
| /** |
| * BreakIterator resolvedOptions method. |
| */ |
| DEFINE_METHOD( |
| GlobalIntlv8BreakIterator.prototype, |
| resolvedOptions() { |
| if (!IS_UNDEFINED(new.target)) { |
| throw %make_type_error(kOrdinaryFunctionCalledAsConstructor); |
| } |
| |
| var methodName = 'resolvedOptions'; |
| if(!IS_RECEIVER(this)) { |
| throw %make_type_error(kIncompatibleMethodReceiver, methodName, this); |
| } |
| var segmenter = %IntlUnwrapReceiver(this, BREAK_ITERATOR_TYPE, |
| GlobalIntlv8BreakIterator, methodName, |
| false); |
| |
| return { |
| locale: segmenter[resolvedSymbol].locale, |
| type: segmenter[resolvedSymbol].type |
| }; |
| } |
| ); |
| |
| |
| // Save references to Intl objects and methods we use, for added security. |
| var savedObjects = { |
| __proto__: null, |
| 'collator': GlobalIntlCollator, |
| 'numberformat': GlobalIntlNumberFormat, |
| 'dateformatall': GlobalIntlDateTimeFormat, |
| 'dateformatdate': GlobalIntlDateTimeFormat, |
| 'dateformattime': GlobalIntlDateTimeFormat |
| }; |
| |
| |
| // Default (created with undefined locales and options parameters) collator, |
| // number and date format instances. They'll be created as needed. |
| var defaultObjects = { |
| __proto__: null, |
| 'collator': UNDEFINED, |
| 'numberformat': UNDEFINED, |
| 'dateformatall': UNDEFINED, |
| 'dateformatdate': UNDEFINED, |
| 'dateformattime': UNDEFINED, |
| }; |
| |
| function clearDefaultObjects() { |
| defaultObjects['dateformatall'] = UNDEFINED; |
| defaultObjects['dateformatdate'] = UNDEFINED; |
| defaultObjects['dateformattime'] = UNDEFINED; |
| } |
| |
| var date_cache_version = 0; |
| |
| function checkDateCacheCurrent() { |
| var new_date_cache_version = %DateCacheVersion(); |
| if (new_date_cache_version == date_cache_version) { |
| return; |
| } |
| date_cache_version = new_date_cache_version; |
| |
| clearDefaultObjects(); |
| } |
| |
| /** |
| * 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)) { |
| checkDateCacheCurrent(); |
| if (IS_UNDEFINED(defaultObjects[service])) { |
| defaultObjects[service] = new savedObjects[service](locales, useOptions); |
| } |
| return defaultObjects[service]; |
| } |
| return new savedObjects[service](locales, useOptions); |
| } |
| |
| // TODO(ftang) remove the %InstallToContext once |
| // cachedOrNewService is available in C++ |
| %InstallToContext([ |
| "cached_or_new_service", cachedOrNewService |
| ]); |
| |
| /** |
| * 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. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleString() { |
| 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. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleDateString() { |
| 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. |
| */ |
| DEFINE_METHOD( |
| GlobalDate.prototype, |
| toLocaleTimeString() { |
| var locales = arguments[0]; |
| var options = arguments[1]; |
| return %ToLocaleDateTime( |
| this, locales, options, 'time', 'time', 'dateformattime'); |
| } |
| ); |
| |
| }) |