diff options
Diffstat (limited to 'js/src/builtin')
| -rw-r--r-- | js/src/builtin/Intl.js | 602 |
1 files changed, 131 insertions, 471 deletions
diff --git a/js/src/builtin/Intl.js b/js/src/builtin/Intl.js index 37c87365b..509168d7a 100644 --- a/js/src/builtin/Intl.js +++ b/js/src/builtin/Intl.js @@ -9,8 +9,7 @@ JSMSG_INVALID_OPTION_VALUE: false, JSMSG_INVALID_DIGITS_VALUE: false, JSMSG_INTL_OBJECT_REINITED: false, JSMSG_INVALID_CURRENCY_CODE: false, JSMSG_UNDEFINED_CURRENCY: false, JSMSG_INVALID_TIME_ZONE: false, - JSMSG_DATE_NOT_FINITE: false, JSMSG_INVALID_KEYS_TYPE: false, - JSMSG_INVALID_KEY: false, + JSMSG_DATE_NOT_FINITE: false, intl_Collator_availableLocales: false, intl_availableCollations: false, intl_CompareStrings: false, @@ -21,9 +20,6 @@ intl_availableCalendars: false, intl_patternForSkeleton: false, intl_FormatDateTime: false, - intl_SelectPluralRule: false, - intl_GetPluralCategories: false, - intl_GetCalendarInfo: false, */ /* @@ -860,7 +856,6 @@ function BestAvailableLocaleIgnoringDefault(availableLocales, locale) { return BestAvailableLocaleHelper(availableLocales, locale, false); } -var noRelevantExtensionKeys = []; /** * Compares a BCP 47 language priority list against the set of locales in @@ -1188,10 +1183,9 @@ function GetOption(options, property, type, values, fallback) { * Spec: ECMAScript Internationalization API Specification, 9.2.10. */ function GetNumberOption(options, property, minimum, maximum, fallback) { - assert(typeof minimum === "number" && (minimum | 0) === minimum, "GetNumberOption"); - assert(typeof maximum === "number" && (maximum | 0) === maximum, "GetNumberOption"); - assert(typeof fallback === "number" && (fallback | 0) === fallback, "GetNumberOption"); - assert(minimum <= fallback && fallback <= maximum, "GetNumberOption"); + assert(typeof minimum === "number", "GetNumberOption"); + assert(typeof maximum === "number", "GetNumberOption"); + assert(fallback === undefined || (fallback >= minimum && fallback <= maximum), "GetNumberOption"); // Step 1. var value = options[property]; @@ -1201,10 +1195,7 @@ function GetNumberOption(options, property, minimum, maximum, fallback) { value = ToNumber(value); if (Number_isNaN(value) || value < minimum || value > maximum) ThrowRangeError(JSMSG_INVALID_DIGITS_VALUE, value); - - // Apply bitwise-or to convert -0 to +0 per ES2017, 5.2 and to ensure - // the result is an int32 value. - return std_Math_floor(value) | 0; + return std_Math_floor(value); } // Step 3. @@ -1278,9 +1269,7 @@ function initializeIntlObject(obj) { function setLazyData(internals, type, lazyData) { assert(internals.type === "partial", "can't set lazy data for anything but a newborn"); - assert(type === "Collator" || type === "DateTimeFormat" || - type == "NumberFormat" || type === "PluralRules", - "bad type"); + assert(type === "Collator" || type === "DateTimeFormat" || type == "NumberFormat", "bad type"); assert(IsObject(lazyData), "non-object lazy data"); // Set in reverse order so that the .type change is a barrier. @@ -1330,9 +1319,7 @@ function isInitializedIntlObject(obj) { if (IsObject(internals)) { assert(callFunction(std_Object_hasOwnProperty, internals, "type"), "missing type"); var type = internals.type; - assert(type === "partial" || type === "Collator" || - type === "DateTimeFormat" || type === "NumberFormat" || type === "PluralRules", - "unexpected type"); + assert(type === "partial" || type === "Collator" || type === "DateTimeFormat" || type === "NumberFormat", "unexpected type"); assert(callFunction(std_Object_hasOwnProperty, internals, "lazyData"), "missing lazyData"); assert(callFunction(std_Object_hasOwnProperty, internals, "internalProps"), "missing internalProps"); } else { @@ -1389,8 +1376,6 @@ function getInternals(obj) internalProps = resolveCollatorInternals(lazyData) else if (type === "DateTimeFormat") internalProps = resolveDateTimeFormatInternals(lazyData) - else if (type === "PluralRules") - internalProps = resolvePluralRulesInternals(lazyData) else internalProps = resolveNumberFormatInternals(lazyData); setInternalProperties(internals, internalProps); @@ -1722,7 +1707,6 @@ function Intl_Collator_compare_get() { // Step 2. return internals.boundCompare; } -_SetCanonicalName(Intl_Collator_compare_get, "get compare"); /** @@ -1791,37 +1775,45 @@ function resolveNumberFormatInternals(lazyNumberFormatData) { // Step 6. var opt = lazyNumberFormatData.opt; + // Compute effective locale. + // Step 9. var NumberFormat = numberFormatInternalProperties; - // Step 9. + // Step 10. var localeData = NumberFormat.localeData; - // Step 10. + // Step 11. var r = ResolveLocale(callFunction(NumberFormat.availableLocales, NumberFormat), lazyNumberFormatData.requestedLocales, lazyNumberFormatData.opt, NumberFormat.relevantExtensionKeys, localeData); - // Steps 11-12. (Step 13 is not relevant to our implementation.) + // Steps 12-13. (Step 14 is not relevant to our implementation.) internalProps.locale = r.locale; internalProps.numberingSystem = r.nu; // Compute formatting options. - // Step 15. - var style = lazyNumberFormatData.style; - internalProps.style = style; + // Step 16. + var s = lazyNumberFormatData.style; + internalProps.style = s; - // Steps 19, 21. - if (style === "currency") { + // Steps 20, 22. + if (s === "currency") { internalProps.currency = lazyNumberFormatData.currency; internalProps.currencyDisplay = lazyNumberFormatData.currencyDisplay; } + // Step 24. internalProps.minimumIntegerDigits = lazyNumberFormatData.minimumIntegerDigits; + + // Steps 27. internalProps.minimumFractionDigits = lazyNumberFormatData.minimumFractionDigits; + + // Step 30. internalProps.maximumFractionDigits = lazyNumberFormatData.maximumFractionDigits; + // Step 33. if ("minimumSignificantDigits" in lazyNumberFormatData) { // Note: Intl.NumberFormat.prototype.resolvedOptions() exposes the // actual presence (versus undefined-ness) of these properties. @@ -1830,10 +1822,10 @@ function resolveNumberFormatInternals(lazyNumberFormatData) { internalProps.maximumSignificantDigits = lazyNumberFormatData.maximumSignificantDigits; } - // Step 27. + // Step 35. internalProps.useGrouping = lazyNumberFormatData.useGrouping; - // Step 34. + // Step 42. internalProps.boundFormat = undefined; // The caller is responsible for associating |internalProps| with the right @@ -1861,44 +1853,6 @@ function getNumberFormatInternals(obj, methodName) { return internalProps; } -/** - * Applies digit options used for number formatting onto the intl object. - * - * Spec: ECMAScript Internationalization API Specification, 11.1.1. - */ -function SetNumberFormatDigitOptions(lazyData, options, mnfdDefault, mxfdDefault) { - // We skip Step 1 because we set the properties on a lazyData object. - - // Step 2-3. - assert(IsObject(options), "SetNumberFormatDigitOptions"); - assert(typeof mnfdDefault === "number", "SetNumberFormatDigitOptions"); - assert(typeof mxfdDefault === "number", "SetNumberFormatDigitOptions"); - assert(mnfdDefault <= mxfdDefault, "SetNumberFormatDigitOptions"); - - // Steps 4-6. - const mnid = GetNumberOption(options, "minimumIntegerDigits", 1, 21, 1); - const mnfd = GetNumberOption(options, "minimumFractionDigits", 0, 20, mnfdDefault); - const mxfdActualDefault = std_Math_max(mnfd, mxfdDefault); - const mxfd = GetNumberOption(options, "maximumFractionDigits", mnfd, 20, mxfdActualDefault); - - // Steps 7-8. - let mnsd = options.minimumSignificantDigits; - let mxsd = options.maximumSignificantDigits; - - // Steps 9-11. - lazyData.minimumIntegerDigits = mnid; - lazyData.minimumFractionDigits = mnfd; - lazyData.maximumFractionDigits = mxfd; - - // Step 12. - if (mnsd !== undefined || mxsd !== undefined) { - mnsd = GetNumberOption(options, "minimumSignificantDigits", 1, 21, 1); - mxsd = GetNumberOption(options, "maximumSignificantDigits", mnsd, 21, 21); - lazyData.minimumSignificantDigits = mnsd; - lazyData.maximumSignificantDigits = mxsd; - } -} - /** * Initializes an object as a NumberFormat. @@ -1948,7 +1902,7 @@ function InitializeNumberFormat(numberFormat, locales, options) { // } // // Note that lazy data is only installed as a final step of initialization, - // so every NumberFormat lazy data object has *all* these properties, never a + // so every Collator lazy data object has *all* these properties, never a // subset of them. var lazyNumberFormatData = std_Object_create(null); @@ -1978,46 +1932,67 @@ function InitializeNumberFormat(numberFormat, locales, options) { opt.localeMatcher = matcher; // Compute formatting options. - // Step 14. - var style = GetOption(options, "style", "string", ["decimal", "percent", "currency"], "decimal"); - lazyNumberFormatData.style = style; + // Step 15. + var s = GetOption(options, "style", "string", ["decimal", "percent", "currency"], "decimal"); + lazyNumberFormatData.style = s; - // Steps 16-19. + // Steps 17-20. var c = GetOption(options, "currency", "string", undefined, undefined); if (c !== undefined && !IsWellFormedCurrencyCode(c)) ThrowRangeError(JSMSG_INVALID_CURRENCY_CODE, c); var cDigits; - if (style === "currency") { + if (s === "currency") { if (c === undefined) ThrowTypeError(JSMSG_UNDEFINED_CURRENCY); - // Steps 19.a-c. + // Steps 20.a-c. c = toASCIIUpperCase(c); lazyNumberFormatData.currency = c; cDigits = CurrencyDigits(c); } - // Step 20. + // Step 21. var cd = GetOption(options, "currencyDisplay", "string", ["code", "symbol", "name"], "symbol"); - if (style === "currency") + if (s === "currency") lazyNumberFormatData.currencyDisplay = cd; - // Steps 22-25. - var mnfdDefault, mxfdDefault; - if (style === "currency") { - mnfdDefault = cDigits; - mxfdDefault = cDigits; - } else { - mnfdDefault = 0; - mxfdDefault = style === "percent" ? 0 : 3; + // Step 23. + var mnid = GetNumberOption(options, "minimumIntegerDigits", 1, 21, 1); + lazyNumberFormatData.minimumIntegerDigits = mnid; + + // Steps 25-26. + var mnfdDefault = (s === "currency") ? cDigits : 0; + var mnfd = GetNumberOption(options, "minimumFractionDigits", 0, 20, mnfdDefault); + lazyNumberFormatData.minimumFractionDigits = mnfd; + + // Steps 28-29. + var mxfdDefault; + if (s === "currency") + mxfdDefault = std_Math_max(mnfd, cDigits); + else if (s === "percent") + mxfdDefault = std_Math_max(mnfd, 0); + else + mxfdDefault = std_Math_max(mnfd, 3); + var mxfd = GetNumberOption(options, "maximumFractionDigits", mnfd, 20, mxfdDefault); + lazyNumberFormatData.maximumFractionDigits = mxfd; + + // Steps 31-32. + var mnsd = options.minimumSignificantDigits; + var mxsd = options.maximumSignificantDigits; + + // Step 33. + if (mnsd !== undefined || mxsd !== undefined) { + mnsd = GetNumberOption(options, "minimumSignificantDigits", 1, 21, 1); + mxsd = GetNumberOption(options, "maximumSignificantDigits", mnsd, 21, 21); + lazyNumberFormatData.minimumSignificantDigits = mnsd; + lazyNumberFormatData.maximumSignificantDigits = mxsd; } - SetNumberFormatDigitOptions(lazyNumberFormatData, options, mnfdDefault, mxfdDefault); - // Steps 26. + // Step 34. var g = GetOption(options, "useGrouping", "boolean", undefined, true); lazyNumberFormatData.useGrouping = g; - // Steps 35-36. + // Step 43. // // We've done everything that must be done now: mark the lazy data as fully // computed and install it. @@ -2026,6 +2001,43 @@ function InitializeNumberFormat(numberFormat, locales, options) { /** + * Mapping from currency codes to the number of decimal digits used for them. + * Default is 2 digits. + * + * Spec: ISO 4217 Currency and Funds Code List. + * http://www.currency-iso.org/en/home/tables/table-a1.html + */ +var currencyDigits = { + BHD: 3, + BIF: 0, + BYR: 0, + CLF: 4, + CLP: 0, + DJF: 0, + GNF: 0, + IQD: 3, + ISK: 0, + JOD: 3, + JPY: 0, + KMF: 0, + KRW: 0, + KWD: 3, + LYD: 3, + OMR: 3, + PYG: 0, + RWF: 0, + TND: 3, + UGX: 0, + UYI: 0, + VND: 0, + VUV: 0, + XAF: 0, + XOF: 0, + XPF: 0 +}; + + +/** * Returns the number of decimal digits to be used for the given currency. * * Spec: ECMAScript Internationalization API Specification, 11.1.1. @@ -2106,7 +2118,7 @@ function numberFormatFormatToBind(value) { // Step 1.a.ii-iii. var x = ToNumber(value); - return intl_FormatNumber(this, x, /* formatToParts = */ false); + return intl_FormatNumber(this, x); } @@ -2133,22 +2145,6 @@ function Intl_NumberFormat_format_get() { // Step 2. return internals.boundFormat; } -_SetCanonicalName(Intl_NumberFormat_format_get, "get format"); - - -function Intl_NumberFormat_formatToParts(value) { - // Step 1. - var nf = this; - - // Steps 2-3. - getNumberFormatInternals(nf, "formatToParts"); - - // Step 4. - var x = ToNumber(value); - - // Step 5. - return intl_FormatNumber(nf, x, /* formatToParts = */ true); -} /** @@ -2290,6 +2286,26 @@ function getDateTimeFormatInternals(obj, methodName) { return internalProps; } +/** + * Components of date and time formats and their values. + * + * Spec: ECMAScript Internationalization API Specification, 12.1.1. + */ +var dateTimeComponentValues = { + weekday: ["narrow", "short", "long"], + era: ["narrow", "short", "long"], + year: ["2-digit", "numeric"], + month: ["2-digit", "numeric", "narrow", "short", "long"], + day: ["2-digit", "numeric"], + hour: ["2-digit", "numeric"], + minute: ["2-digit", "numeric"], + second: ["2-digit", "numeric"], + timeZoneName: ["short", "long"] +}; + + +var dateTimeComponents = std_Object_getOwnPropertyNames(dateTimeComponentValues); + /** * Initializes an object as a DateTimeFormat. @@ -2379,19 +2395,12 @@ function InitializeDateTimeFormat(dateTimeFormat, locales, options) { lazyDateTimeFormatData.formatOpt = formatOpt; // Step 19. - // 12.1, Table 4: Components of date and time formats. - formatOpt.weekday = GetOption(options, "weekday", "string", ["narrow", "short", "long"], - undefined); - formatOpt.era = GetOption(options, "era", "string", ["narrow", "short", "long"], undefined); - formatOpt.year = GetOption(options, "year", "string", ["2-digit", "numeric"], undefined); - formatOpt.month = GetOption(options, "month", "string", - ["2-digit", "numeric", "narrow", "short", "long"], undefined); - formatOpt.day = GetOption(options, "day", "string", ["2-digit", "numeric"], undefined); - formatOpt.hour = GetOption(options, "hour", "string", ["2-digit", "numeric"], undefined); - formatOpt.minute = GetOption(options, "minute", "string", ["2-digit", "numeric"], undefined); - formatOpt.second = GetOption(options, "second", "string", ["2-digit", "numeric"], undefined); - formatOpt.timeZoneName = GetOption(options, "timeZoneName", "string", ["short", "long"], - undefined); + var i, prop; + for (i = 0; i < dateTimeComponents.length; i++) { + prop = dateTimeComponents[i]; + var value = GetOption(options, prop, "string", dateTimeComponentValues[prop], undefined); + formatOpt[prop] = value; + } // Steps 20-21 provided by ICU - see comment after this function. @@ -2659,6 +2668,7 @@ function ToDateTimeOptions(options, required, defaults) { return options; } + /** * Compares the date and time components requested by options with the available * date and time formats in formats, and selects the best match according @@ -2844,7 +2854,6 @@ function Intl_DateTimeFormat_format_get() { // Step 2. return internals.boundFormat; } -_SetCanonicalName(Intl_DateTimeFormat_format_get, "get format"); function Intl_DateTimeFormat_formatToParts() { @@ -2980,232 +2989,6 @@ function resolveICUPattern(pattern, result) { } } -/********** Intl.PluralRules **********/ - -/** - * PluralRules internal properties. - * - * Spec: ECMAScript 402 API, PluralRules, 1.3.3. - */ -var pluralRulesInternalProperties = { - _availableLocales: null, - availableLocales: function() - { - var locales = this._availableLocales; - if (locales) - return locales; - - locales = intl_PluralRules_availableLocales(); - addSpecialMissingLanguageTags(locales); - return (this._availableLocales = locales); - } -}; - -/** - * Compute an internal properties object from |lazyPluralRulesData|. - */ -function resolvePluralRulesInternals(lazyPluralRulesData) { - assert(IsObject(lazyPluralRulesData), "lazy data not an object?"); - - var internalProps = std_Object_create(null); - - var requestedLocales = lazyPluralRulesData.requestedLocales; - - var PluralRules = pluralRulesInternalProperties; - - // Step 13. - const r = ResolveLocale(callFunction(PluralRules.availableLocales, PluralRules), - lazyPluralRulesData.requestedLocales, - lazyPluralRulesData.opt, - noRelevantExtensionKeys, undefined); - - // Step 14. - internalProps.locale = r.locale; - internalProps.type = lazyPluralRulesData.type; - - internalProps.pluralCategories = intl_GetPluralCategories( - internalProps.locale, - internalProps.type); - - internalProps.minimumIntegerDigits = lazyPluralRulesData.minimumIntegerDigits; - internalProps.minimumFractionDigits = lazyPluralRulesData.minimumFractionDigits; - internalProps.maximumFractionDigits = lazyPluralRulesData.maximumFractionDigits; - - if ("minimumSignificantDigits" in lazyPluralRulesData) { - assert("maximumSignificantDigits" in lazyPluralRulesData, "min/max sig digits mismatch"); - internalProps.minimumSignificantDigits = lazyPluralRulesData.minimumSignificantDigits; - internalProps.maximumSignificantDigits = lazyPluralRulesData.maximumSignificantDigits; - } - - return internalProps; -} - -/** - * Returns an object containing the PluralRules internal properties of |obj|, - * or throws a TypeError if |obj| isn't PluralRules-initialized. - */ -function getPluralRulesInternals(obj, methodName) { - var internals = getIntlObjectInternals(obj, "PluralRules", methodName); - assert(internals.type === "PluralRules", "bad type escaped getIntlObjectInternals"); - - var internalProps = maybeInternalProperties(internals); - if (internalProps) - return internalProps; - - internalProps = resolvePluralRulesInternals(internals.lazyData); - setInternalProperties(internals, internalProps); - return internalProps; -} - -/** - * Initializes an object as a PluralRules. - * - * This method is complicated a moderate bit by its implementing initialization - * as a *lazy* concept. Everything that must happen now, does -- but we defer - * all the work we can until the object is actually used as a PluralRules. - * This later work occurs in |resolvePluralRulesInternals|; steps not noted - * here occur there. - * - * Spec: ECMAScript 402 API, PluralRules, 1.1.1. - */ -function InitializePluralRules(pluralRules, locales, options) { - assert(IsObject(pluralRules), "InitializePluralRules"); - - // Step 1. - if (isInitializedIntlObject(pluralRules)) - ThrowTypeError(JSMSG_INTL_OBJECT_REINITED); - - let internals = initializeIntlObject(pluralRules); - - // Lazy PluralRules data has the following structure: - // - // { - // requestedLocales: List of locales, - // type: "cardinal" / "ordinal", - // - // opt: // opt object computer in InitializePluralRules - // { - // localeMatcher: "lookup" / "best fit", - // } - // - // minimumIntegerDigits: integer ∈ [1, 21], - // minimumFractionDigits: integer ∈ [0, 20], - // maximumFractionDigits: integer ∈ [0, 20], - // - // // optional - // minimumSignificantDigits: integer ∈ [1, 21], - // maximumSignificantDigits: integer ∈ [1, 21], - // } - // - // Note that lazy data is only installed as a final step of initialization, - // so every PluralRules lazy data object has *all* these properties, never a - // subset of them. - const lazyPluralRulesData = std_Object_create(null); - - // Step 3. - let requestedLocales = CanonicalizeLocaleList(locales); - lazyPluralRulesData.requestedLocales = requestedLocales; - - // Steps 4-5. - if (options === undefined) - options = {}; - else - options = ToObject(options); - - // Step 6. - const type = GetOption(options, "type", "string", ["cardinal", "ordinal"], "cardinal"); - lazyPluralRulesData.type = type; - - // Step 8. - let opt = new Record(); - lazyPluralRulesData.opt = opt; - - // Steps 9-10. - let matcher = GetOption(options, "localeMatcher", "string", ["lookup", "best fit"], "best fit"); - opt.localeMatcher = matcher; - - // Steps 11-12. - SetNumberFormatDigitOptions(lazyPluralRulesData, options, 0, 3); - - setLazyData(internals, "PluralRules", lazyPluralRulesData) -} - -/** - * 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. - * - * Spec: ECMAScript 402 API, PluralRules, 1.3.2. - */ -function Intl_PluralRules_supportedLocalesOf(locales /*, options*/) { - var options = arguments.length > 1 ? arguments[1] : undefined; - - // Step 1. - var availableLocales = callFunction(pluralRulesInternalProperties.availableLocales, - pluralRulesInternalProperties); - // Step 2. - let requestedLocales = CanonicalizeLocaleList(locales); - - // Step 3. - return SupportedLocales(availableLocales, requestedLocales, options); -} - -/** - * Returns a String value representing the plural category matching - * the number passed as value according to the - * effective locale and the formatting options of this PluralRules. - * - * Spec: ECMAScript 402 API, PluralRules, 1.4.3. - */ -function Intl_PluralRules_select(value) { - // Step 1. - let pluralRules = this; - // Step 2. - let internals = getPluralRulesInternals(pluralRules, "select"); - - // Steps 3-4. - let n = ToNumber(value); - - // Step 5. - return intl_SelectPluralRule(pluralRules, n); -} - -/** - * Returns the resolved options for a PluralRules object. - * - * Spec: ECMAScript 402 API, PluralRules, 1.4.4. - */ -function Intl_PluralRules_resolvedOptions() { - var internals = getPluralRulesInternals(this, "resolvedOptions"); - - var internalsPluralCategories = internals.pluralCategories; - var pluralCategories = []; - for (var i = 0; i < internalsPluralCategories.length; i++) - _DefineDataProperty(pluralCategories, i, internalsPluralCategories[i]); - - var result = { - locale: internals.locale, - type: internals.type, - pluralCategories, - minimumIntegerDigits: internals.minimumIntegerDigits, - minimumFractionDigits: internals.minimumFractionDigits, - maximumFractionDigits: internals.maximumFractionDigits, - }; - - var optionalProperties = [ - "minimumSignificantDigits", - "maximumSignificantDigits" - ]; - - for (var i = 0; i < optionalProperties.length; i++) { - var p = optionalProperties[i]; - if (callFunction(std_Object_hasOwnProperty, internals, p)) - _DefineDataProperty(result, p, internals[p]); - } - return result; -} - - function Intl_getCanonicalLocales(locales) { let codes = CanonicalizeLocaleList(locales); let result = []; @@ -3241,126 +3024,3 @@ function Intl_getCalendarInfo(locales) { return result; } - -/** - * This function is a custom method designed after Intl API, but currently - * not part of the spec or spec proposal. - * We want to use it internally to retrieve translated values from CLDR in - * order to ensure they're aligned with what Intl API returns. - * - * This API may one day be a foundation for an ECMA402 API spec proposal. - * - * The function takes two arguments - locales which is a list of locale strings - * and options which is an object with two optional properties: - * - * keys: - * an Array of string values that are paths to individual terms - * - * style: - * a String with a value "long", "short" or "narrow" - * - * It returns an object with properties: - * - * locale: - * a negotiated locale string - * - * style: - * negotiated style - * - * values: - * A key-value pair list of requested keys and corresponding - * translated values - * - */ -function Intl_getDisplayNames(locales, options) { - // 1. Let requestLocales be ? CanonicalizeLocaleList(locales). - const requestedLocales = CanonicalizeLocaleList(locales); - - // 2. If options is undefined, then - if (options === undefined) - // a. Let options be ObjectCreate(%ObjectPrototype%). - options = {}; - // 3. Else, - else - // a. Let options be ? ToObject(options). - options = ToObject(options); - - const DateTimeFormat = dateTimeFormatInternalProperties; - - // 4. Let localeData be %DateTimeFormat%.[[localeData]]. - const localeData = DateTimeFormat.localeData; - - // 5. Let opt be a new Record. - const localeOpt = new Record(); - // 6. Set localeOpt.[[localeMatcher]] to "best fit". - localeOpt.localeMatcher = "best fit"; - - // 7. Let r be ResolveLocale(%DateTimeFormat%.[[availableLocales]], requestedLocales, localeOpt, - // %DateTimeFormat%.[[relevantExtensionKeys]], localeData). - const r = ResolveLocale(callFunction(DateTimeFormat.availableLocales, DateTimeFormat), - requestedLocales, - localeOpt, - DateTimeFormat.relevantExtensionKeys, - localeData); - - // 8. Let style be ? GetOption(options, "style", "string", « "long", "short", "narrow" », "long"). - const style = GetOption(options, "style", "string", ["long", "short", "narrow"], "long"); - // 9. Let keys be ? Get(options, "keys"). - let keys = options.keys; - - // 10. If keys is undefined, - if (keys === undefined) { - // a. Let keys be ArrayCreate(0). - keys = []; - } else if (!IsObject(keys)) { - // 11. Else, - // a. If Type(keys) is not Object, throw a TypeError exception. - ThrowTypeError(JSMSG_INVALID_KEYS_TYPE); - } - - // 12. Let processedKeys be ArrayCreate(0). - // (This really should be a List, but we use an Array here in order that - // |intl_ComputeDisplayNames| may infallibly access the list's length via - // |ArrayObject::length|.) - let processedKeys = []; - // 13. Let len be ? ToLength(? Get(keys, "length")). - let len = ToLength(keys.length); - // 14. Let i be 0. - // 15. Repeat, while i < len - for (let i = 0; i < len; i++) { - // a. Let processedKey be ? ToString(? Get(keys, i)). - // b. Perform ? CreateDataPropertyOrThrow(processedKeys, i, processedKey). - callFunction(std_Array_push, processedKeys, ToString(keys[i])); - } - - // 16. Let names be ? ComputeDisplayNames(r.[[locale]], style, processedKeys). - const names = intl_ComputeDisplayNames(r.locale, style, processedKeys); - - // 17. Let values be ObjectCreate(%ObjectPrototype%). - const values = {}; - - // 18. Set i to 0. - // 19. Repeat, while i < len - for (let i = 0; i < len; i++) { - // a. Let key be ? Get(processedKeys, i). - const key = processedKeys[i]; - // b. Let name be ? Get(names, i). - const name = names[i]; - // c. Assert: Type(name) is string. - assert(typeof name === "string", "unexpected non-string value"); - // d. Assert: the length of name is greater than zero. - assert(name.length > 0, "empty string value"); - // e. Perform ? DefinePropertyOrThrow(values, key, name). - _DefineDataProperty(values, key, name); - } - - // 20. Let options be ObjectCreate(%ObjectPrototype%). - // 21. Perform ! DefinePropertyOrThrow(result, "locale", r.[[locale]]). - // 22. Perform ! DefinePropertyOrThrow(result, "style", style). - // 23. Perform ! DefinePropertyOrThrow(result, "values", values). - const result = { locale: r.locale, style, values }; - - // 24. Return result. - return result; -} - |