diff options
Diffstat (limited to 'js/src/builtin/Intl.js')
| -rw-r--r-- | js/src/builtin/Intl.js | 351 |
1 files changed, 300 insertions, 51 deletions
diff --git a/js/src/builtin/Intl.js b/js/src/builtin/Intl.js index 6391c3e70..281b0f424 100644 --- a/js/src/builtin/Intl.js +++ b/js/src/builtin/Intl.js @@ -21,6 +21,9 @@ intl_availableCalendars: false, intl_patternForSkeleton: false, intl_FormatDateTime: false, + intl_SelectPluralRule: false, + intl_GetPluralCategories: false, + intl_GetCalendarInfo: false, */ /* @@ -857,6 +860,7 @@ function BestAvailableLocaleIgnoringDefault(availableLocales, locale) { return BestAvailableLocaleHelper(availableLocales, locale, false); } +var noRelevantExtensionKeys = []; /** * Compares a BCP 47 language priority list against the set of locales in @@ -1270,7 +1274,9 @@ 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", "bad type"); + assert(type === "Collator" || type === "DateTimeFormat" || + type == "NumberFormat" || type === "PluralRules", + "bad type"); assert(IsObject(lazyData), "non-object lazy data"); // Set in reverse order so that the .type change is a barrier. @@ -1320,7 +1326,9 @@ 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", "unexpected type"); + assert(type === "partial" || type === "Collator" || + type === "DateTimeFormat" || type === "NumberFormat" || type === "PluralRules", + "unexpected type"); assert(callFunction(std_Object_hasOwnProperty, internals, "lazyData"), "missing lazyData"); assert(callFunction(std_Object_hasOwnProperty, internals, "internalProps"), "missing internalProps"); } else { @@ -1377,6 +1385,8 @@ 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); @@ -1776,45 +1786,39 @@ function resolveNumberFormatInternals(lazyNumberFormatData) { // Step 6. var opt = lazyNumberFormatData.opt; - // Compute effective locale. - // Step 9. var NumberFormat = numberFormatInternalProperties; - // Step 10. + // Step 9. var localeData = NumberFormat.localeData; - // Step 11. + // Step 10. var r = ResolveLocale(callFunction(NumberFormat.availableLocales, NumberFormat), lazyNumberFormatData.requestedLocales, lazyNumberFormatData.opt, NumberFormat.relevantExtensionKeys, localeData); - // Steps 12-13. (Step 14 is not relevant to our implementation.) + // Steps 11-12. (Step 13 is not relevant to our implementation.) internalProps.locale = r.locale; internalProps.numberingSystem = r.nu; // Compute formatting options. - // Step 16. + // Step 15. var s = lazyNumberFormatData.style; internalProps.style = s; - // Steps 20, 22. + // Steps 19, 21. 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. @@ -1823,10 +1827,10 @@ function resolveNumberFormatInternals(lazyNumberFormatData) { internalProps.maximumSignificantDigits = lazyNumberFormatData.maximumSignificantDigits; } - // Step 35. + // Step 27. internalProps.useGrouping = lazyNumberFormatData.useGrouping; - // Step 42. + // Step 34. internalProps.boundFormat = undefined; // The caller is responsible for associating |internalProps| with the right @@ -1854,6 +1858,41 @@ 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) { + // 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"); + + // Steps 4-6. + const mnid = GetNumberOption(options, "minimumIntegerDigits", 1, 21, 1); + const mnfd = GetNumberOption(options, "minimumFractionDigits", 0, 20, mnfdDefault); + const mxfd = GetNumberOption(options, "maximumFractionDigits", mnfd, 20); + + // 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. @@ -1903,7 +1942,7 @@ function InitializeNumberFormat(numberFormat, locales, options) { // } // // Note that lazy data is only installed as a final step of initialization, - // so every Collator lazy data object has *all* these properties, never a + // so every NumberFormat lazy data object has *all* these properties, never a // subset of them. var lazyNumberFormatData = std_Object_create(null); @@ -1933,11 +1972,11 @@ function InitializeNumberFormat(numberFormat, locales, options) { opt.localeMatcher = matcher; // Compute formatting options. - // Step 15. + // Step 14. var s = GetOption(options, "style", "string", ["decimal", "percent", "currency"], "decimal"); lazyNumberFormatData.style = s; - // Steps 17-20. + // Steps 16-19. var c = GetOption(options, "currency", "string", undefined, undefined); if (c !== undefined && !IsWellFormedCurrencyCode(c)) ThrowRangeError(JSMSG_INVALID_CURRENCY_CODE, c); @@ -1946,54 +1985,36 @@ function InitializeNumberFormat(numberFormat, locales, options) { if (c === undefined) ThrowTypeError(JSMSG_UNDEFINED_CURRENCY); - // Steps 20.a-c. + // Steps 19.a-c. c = toASCIIUpperCase(c); lazyNumberFormatData.currency = c; cDigits = CurrencyDigits(c); } - // Step 21. + // Step 20. var cd = GetOption(options, "currencyDisplay", "string", ["code", "symbol", "name"], "symbol"); if (s === "currency") lazyNumberFormatData.currencyDisplay = cd; - // 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; + // Steps 22-24. + SetNumberFormatDigitOptions(lazyNumberFormatData, options, s === "currency" ? cDigits: 0); - // 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; + // Step 25. + if (lazyNumberFormatData.maximumFractionDigits === undefined) { + let mxfdDefault = s === "currency" + ? cDigits + : s === "percent" + ? 0 + : 3; + lazyNumberFormatData.maximumFractionDigits = + std_Math_max(lazyNumberFormatData.minimumFractionDigits, mxfdDefault); } - // Step 34. + // Step 26. var g = GetOption(options, "useGrouping", "boolean", undefined, true); lazyNumberFormatData.useGrouping = g; - // Step 43. + // Steps 35-36. // // We've done everything that must be done now: mark the lazy data as fully // computed and install it. @@ -2990,6 +3011,234 @@ 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; + + + // Step 11. + SetNumberFormatDigitOptions(lazyPluralRulesData, options, 0); + + // Step 12. + if (lazyPluralRulesData.maximumFractionDigits === undefined) { + lazyPluralRulesData.maximumFractionDigits = + std_Math_max(lazyPluralRulesData.minimumFractionDigits, 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 result = { + locale: internals.locale, + type: internals.type, + pluralCategories: callFunction(std_Array_slice, internals.pluralCategories, 0), + 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 = []; |