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Diffstat (limited to 'js/src/builtin/intl/NumberFormat.js')
| -rw-r--r-- | js/src/builtin/intl/NumberFormat.js | 1210 |
1 files changed, 1210 insertions, 0 deletions
diff --git a/js/src/builtin/intl/NumberFormat.js b/js/src/builtin/intl/NumberFormat.js new file mode 100644 index 0000000000..d381fc97a8 --- /dev/null +++ b/js/src/builtin/intl/NumberFormat.js @@ -0,0 +1,1210 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* Portions Copyright Norbert Lindenberg 2011-2012. */ + +#include "NumberingSystemsGenerated.h" + +/** + * NumberFormat internal properties. + * + * Spec: ECMAScript Internationalization API Specification, 9.1 and 11.3.3. + */ +var numberFormatInternalProperties = { + localeData: numberFormatLocaleData, + relevantExtensionKeys: ["nu"], +}; + +/** + * Compute an internal properties object from |lazyNumberFormatData|. + */ +function resolveNumberFormatInternals(lazyNumberFormatData) { + assert(IsObject(lazyNumberFormatData), "lazy data not an object?"); + + var internalProps = std_Object_create(null); + + var NumberFormat = numberFormatInternalProperties; + + // Compute effective locale. + + // Step 7. + var localeData = NumberFormat.localeData; + + // Step 8. + var r = ResolveLocale( + "NumberFormat", + lazyNumberFormatData.requestedLocales, + lazyNumberFormatData.opt, + NumberFormat.relevantExtensionKeys, + localeData + ); + + // Steps 9-10. (Step 11 is not relevant to our implementation.) + internalProps.locale = r.locale; + internalProps.numberingSystem = r.nu; + + // Compute formatting options. + // Step 13. + var style = lazyNumberFormatData.style; + internalProps.style = style; + + // Steps 17, 19. + if (style === "currency") { + internalProps.currency = lazyNumberFormatData.currency; + internalProps.currencyDisplay = lazyNumberFormatData.currencyDisplay; + internalProps.currencySign = lazyNumberFormatData.currencySign; + } + + // Intl.NumberFormat Unified API Proposal + if (style === "unit") { + internalProps.unit = lazyNumberFormatData.unit; + internalProps.unitDisplay = lazyNumberFormatData.unitDisplay; + } + + // Intl.NumberFormat Unified API Proposal + var notation = lazyNumberFormatData.notation; + internalProps.notation = notation; + + // Step 22. + internalProps.minimumIntegerDigits = + lazyNumberFormatData.minimumIntegerDigits; + + if ("minimumFractionDigits" in lazyNumberFormatData) { + // Note: Intl.NumberFormat.prototype.resolvedOptions() exposes the + // actual presence (versus undefined-ness) of these properties. + assert( + "maximumFractionDigits" in lazyNumberFormatData, + "min/max frac digits mismatch" + ); + internalProps.minimumFractionDigits = + lazyNumberFormatData.minimumFractionDigits; + internalProps.maximumFractionDigits = + lazyNumberFormatData.maximumFractionDigits; + } + + if ("minimumSignificantDigits" in lazyNumberFormatData) { + // Note: Intl.NumberFormat.prototype.resolvedOptions() exposes the + // actual presence (versus undefined-ness) of these properties. + assert( + "maximumSignificantDigits" in lazyNumberFormatData, + "min/max sig digits mismatch" + ); + internalProps.minimumSignificantDigits = + lazyNumberFormatData.minimumSignificantDigits; + internalProps.maximumSignificantDigits = + lazyNumberFormatData.maximumSignificantDigits; + } + + // Intl.NumberFormat v3 Proposal + internalProps.trailingZeroDisplay = lazyNumberFormatData.trailingZeroDisplay; + internalProps.roundingIncrement = lazyNumberFormatData.roundingIncrement; + + // Intl.NumberFormat Unified API Proposal + if (notation === "compact") { + internalProps.compactDisplay = lazyNumberFormatData.compactDisplay; + } + + // Step 24. + internalProps.useGrouping = lazyNumberFormatData.useGrouping; + + // Intl.NumberFormat Unified API Proposal + internalProps.signDisplay = lazyNumberFormatData.signDisplay; + + // Intl.NumberFormat v3 Proposal + internalProps.roundingMode = lazyNumberFormatData.roundingMode; + + // Intl.NumberFormat v3 Proposal + internalProps.roundingPriority = lazyNumberFormatData.roundingPriority; + + // The caller is responsible for associating |internalProps| with the right + // object using |setInternalProperties|. + return internalProps; +} + +/** + * Returns an object containing the NumberFormat internal properties of |obj|. + */ +function getNumberFormatInternals(obj) { + assert(IsObject(obj), "getNumberFormatInternals called with non-object"); + assert( + intl_GuardToNumberFormat(obj) !== null, + "getNumberFormatInternals called with non-NumberFormat" + ); + + var internals = getIntlObjectInternals(obj); + assert( + internals.type === "NumberFormat", + "bad type escaped getIntlObjectInternals" + ); + + // If internal properties have already been computed, use them. + var internalProps = maybeInternalProperties(internals); + if (internalProps) { + return internalProps; + } + + // Otherwise it's time to fully create them. + internalProps = resolveNumberFormatInternals(internals.lazyData); + setInternalProperties(internals, internalProps); + return internalProps; +} + +/** + * 11.1.11 UnwrapNumberFormat( nf ) + */ +function UnwrapNumberFormat(nf) { + // Steps 2 and 4 (error handling moved to caller). + if ( + IsObject(nf) && + intl_GuardToNumberFormat(nf) === null && + !intl_IsWrappedNumberFormat(nf) && + callFunction( + std_Object_isPrototypeOf, + GetBuiltinPrototype("NumberFormat"), + nf + ) + ) { + nf = nf[intlFallbackSymbol()]; + } + return nf; +} + +/** + * 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, + notation +) { + // We skip step 1 because we set the properties on a lazyData object. + + // Steps 2-4. + assert(IsObject(options), "SetNumberFormatDigitOptions"); + assert(typeof mnfdDefault === "number", "SetNumberFormatDigitOptions"); + assert(typeof mxfdDefault === "number", "SetNumberFormatDigitOptions"); + assert(mnfdDefault <= mxfdDefault, "SetNumberFormatDigitOptions"); + assert(typeof notation === "string", "SetNumberFormatDigitOptions"); + + // Steps 5-9. + const mnid = GetNumberOption(options, "minimumIntegerDigits", 1, 21, 1); + let mnfd = options.minimumFractionDigits; + let mxfd = options.maximumFractionDigits; + let mnsd = options.minimumSignificantDigits; + let mxsd = options.maximumSignificantDigits; + + // Step 10. + lazyData.minimumIntegerDigits = mnid; + +#ifdef NIGHTLY_BUILD + // Intl.NumberFormat v3 Proposal + var roundingPriority = GetOption( + options, + "roundingPriority", + "string", + ["auto", "morePrecision", "lessPrecision"], + "auto" + ); +#else + var roundingPriority = "auto"; +#endif + + const hasSignificantDigits = mnsd !== undefined || mxsd !== undefined; + const hasFractionDigits = mnfd !== undefined || mxfd !== undefined; + + const needSignificantDigits = + roundingPriority !== "auto" || hasSignificantDigits; + const needFractionalDigits = + roundingPriority !== "auto" || + !(hasSignificantDigits || (!hasFractionDigits && notation === "compact")); + + if (needSignificantDigits) { + // Step 11. + if (hasSignificantDigits) { + // Step 11.a (Omitted). + + // Step 11.b. + mnsd = DefaultNumberOption(mnsd, 1, 21, 1); + + // Step 11.c. + mxsd = DefaultNumberOption(mxsd, mnsd, 21, 21); + + // Step 11.d. + lazyData.minimumSignificantDigits = mnsd; + + // Step 11.e. + lazyData.maximumSignificantDigits = mxsd; + } else { + lazyData.minimumSignificantDigits = 1; + lazyData.maximumSignificantDigits = 21; + } + } + + if (needFractionalDigits) { + // Step 12. + if (hasFractionDigits) { + // Step 12.a (Omitted). + + // Step 12.b. + mnfd = DefaultNumberOption(mnfd, 0, 20, undefined); + + // Step 12.c. + mxfd = DefaultNumberOption(mxfd, 0, 20, undefined); + + // Step 12.d. + if (mnfd === undefined) { + assert( + mxfd !== undefined, + "mxfd isn't undefined when mnfd is undefined" + ); + mnfd = std_Math_min(mnfdDefault, mxfd); + } + + // Step 12.e. + else if (mxfd === undefined) { + mxfd = std_Math_max(mxfdDefault, mnfd); + } + + // Step 12.f. + else if (mnfd > mxfd) { + ThrowRangeError(JSMSG_INVALID_DIGITS_VALUE, mxfd); + } + + // Step 12.g. + lazyData.minimumFractionDigits = mnfd; + + // Step 12.h. + lazyData.maximumFractionDigits = mxfd; + } else { + // Step 14.a (Omitted). + + // Step 14.b. + lazyData.minimumFractionDigits = mnfdDefault; + + // Step 14.c. + lazyData.maximumFractionDigits = mxfdDefault; + } + } + + if (needSignificantDigits || needFractionalDigits) { + lazyData.roundingPriority = roundingPriority; + } else { + assert(!hasSignificantDigits, "bad significant digits in fallback case"); + assert( + roundingPriority === "auto", + `bad rounding in fallback case: ${roundingPriority}` + ); + assert( + notation === "compact", + `bad notation in fallback case: ${notation}` + ); + + lazyData.roundingPriority = "morePrecision"; + lazyData.minimumFractionDigits = 0; + lazyData.maximumFractionDigits = 0; + lazyData.minimumSignificantDigits = 1; + lazyData.maximumSignificantDigits = 2; + } +} + +/** + * Convert s to upper case, but limited to characters a-z. + * + * Spec: ECMAScript Internationalization API Specification, 6.1. + */ +function toASCIIUpperCase(s) { + assert(typeof s === "string", "toASCIIUpperCase"); + + // String.prototype.toUpperCase may map non-ASCII characters into ASCII, + // so go character by character (actually code unit by code unit, but + // since we only care about ASCII characters here, that's OK). + var result = ""; + for (var i = 0; i < s.length; i++) { + var c = callFunction(std_String_charCodeAt, s, i); + result += + 0x61 <= c && c <= 0x7a + ? callFunction(std_String_fromCharCode, null, c & ~0x20) + : s[i]; + } + return result; +} + +/** + * Verifies that the given string is a well-formed ISO 4217 currency code. + * + * Spec: ECMAScript Internationalization API Specification, 6.3.1. + */ +function IsWellFormedCurrencyCode(currency) { + assert(typeof currency === "string", "currency is a string value"); + + return currency.length === 3 && IsASCIIAlphaString(currency); +} + +/** + * Verifies that the given string is a well-formed core unit identifier as + * defined in UTS #35, Part 2, Section 6. In addition to obeying the UTS #35 + * core unit identifier syntax, |unitIdentifier| must be one of the identifiers + * sanctioned by UTS #35 or be a compound unit composed of two sanctioned simple + * units. + * + * Intl.NumberFormat Unified API Proposal + */ +function IsWellFormedUnitIdentifier(unitIdentifier) { + assert( + typeof unitIdentifier === "string", + "unitIdentifier is a string value" + ); + + // Step 1. + if (IsSanctionedSimpleUnitIdentifier(unitIdentifier)) { + return true; + } + + // Step 2. + var pos = callFunction(std_String_indexOf, unitIdentifier, "-per-"); + if (pos < 0) { + return false; + } + + var next = pos + "-per-".length; + + // Steps 3 and 5. + var numerator = Substring(unitIdentifier, 0, pos); + var denominator = Substring( + unitIdentifier, + next, + unitIdentifier.length - next + ); + + // Steps 4 and 6. + return ( + IsSanctionedSimpleUnitIdentifier(numerator) && + IsSanctionedSimpleUnitIdentifier(denominator) + ); +} + +#if DEBUG || MOZ_SYSTEM_ICU +var availableMeasurementUnits = { + value: null, +}; +#endif + +/** + * Verifies that the given string is a sanctioned simple core unit identifier. + * + * Intl.NumberFormat Unified API Proposal + * + * Also see: https://unicode.org/reports/tr35/tr35-general.html#Unit_Elements + */ +function IsSanctionedSimpleUnitIdentifier(unitIdentifier) { + assert( + typeof unitIdentifier === "string", + "unitIdentifier is a string value" + ); + + var isSanctioned = hasOwn(unitIdentifier, sanctionedSimpleUnitIdentifiers); + +#if DEBUG || MOZ_SYSTEM_ICU + if (isSanctioned) { + if (availableMeasurementUnits.value === null) { + availableMeasurementUnits.value = intl_availableMeasurementUnits(); + } + + var isSupported = hasOwn(unitIdentifier, availableMeasurementUnits.value); + +#if MOZ_SYSTEM_ICU + // A system ICU may support fewer measurement units, so we need to make + // sure the unit is actually supported. + isSanctioned = isSupported; +#else + // Otherwise just assert that the sanctioned unit is also supported. + assert( + isSupported, + `"${unitIdentifier}" is sanctioned but not supported. Did you forget to update + intl/icu/data_filter.json to include the unit (and any implicit compound units)? + For example "speed/kilometer-per-hour" is implied by "length/kilometer" and + "duration/hour" and must therefore also be present.` + ); +#endif + } +#endif + + return isSanctioned; +} + +/* eslint-disable complexity */ +/** + * Initializes an object as a NumberFormat. + * + * 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 NumberFormat. + * This later work occurs in |resolveNumberFormatInternals|; steps not noted + * here occur there. + * + * Spec: ECMAScript Internationalization API Specification, 11.1.2. + */ +function InitializeNumberFormat(numberFormat, thisValue, locales, options) { + assert( + IsObject(numberFormat), + "InitializeNumberFormat called with non-object" + ); + assert( + intl_GuardToNumberFormat(numberFormat) !== null, + "InitializeNumberFormat called with non-NumberFormat" + ); + + // Lazy NumberFormat data has the following structure: + // + // { + // requestedLocales: List of locales, + // style: "decimal" / "percent" / "currency" / "unit", + // + // // fields present only if style === "currency": + // currency: a well-formed currency code (IsWellFormedCurrencyCode), + // currencyDisplay: "code" / "symbol" / "narrowSymbol" / "name", + // currencySign: "standard" / "accounting", + // + // // fields present only if style === "unit": + // unit: a well-formed unit identifier (IsWellFormedUnitIdentifier), + // unitDisplay: "short" / "narrow" / "long", + // + // opt: // opt object computed in InitializeNumberFormat + // { + // localeMatcher: "lookup" / "best fit", + // + // nu: string matching a Unicode extension type, // optional + // } + // + // minimumIntegerDigits: integer ∈ [1, 21], + // + // // optional, mutually exclusive with the significant-digits option + // minimumFractionDigits: integer ∈ [0, 20], + // maximumFractionDigits: integer ∈ [0, 20], + // + // // optional, mutually exclusive with the fraction-digits option + // minimumSignificantDigits: integer ∈ [1, 21], + // maximumSignificantDigits: integer ∈ [1, 21], + // + // roundingPriority: "auto" / "lessPrecision" / "morePrecision", + // + // // accepts different values when Intl.NumberFormat v3 proposal is enabled + // useGrouping: true / false, + // useGrouping: "auto" / "always" / "min2" / false, + // + // notation: "standard" / "scientific" / "engineering" / "compact", + // + // // optional, if notation is "compact" + // compactDisplay: "short" / "long", + // + // signDisplay: "auto" / "never" / "always" / "exceptZero", + // + // trailingZeroDisplay: "auto" / "stripIfInteger", + // + // roundingIncrement: integer ∈ (1, 2, 5, + // 10, 20, 25, 50, + // 100, 200, 250, 500, + // 1000, 2000, 2500, 5000), + // + // roundingMode: "ceil" / "floor" / "expand" / "trunc" / + // "halfCeil" / "halfFloor" / "halfExpand" / "halfTrunc" / "halfEven", + // } + // + // 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 + // subset of them. + var lazyNumberFormatData = std_Object_create(null); + + // Step 1. + var requestedLocales = CanonicalizeLocaleList(locales); + lazyNumberFormatData.requestedLocales = requestedLocales; + + // Steps 2-3. + // + // If we ever need more speed here at startup, we should try to detect the + // case where |options === undefined| and then directly use the default + // value for each option. For now, just keep it simple. + if (options === undefined) { + options = std_Object_create(null); + } else { + options = ToObject(options); + } + + // Compute options that impact interpretation of locale. + // Step 4. + var opt = new_Record(); + lazyNumberFormatData.opt = opt; + + // Steps 5-6. + var matcher = GetOption( + options, + "localeMatcher", + "string", + ["lookup", "best fit"], + "best fit" + ); + opt.localeMatcher = matcher; + + var numberingSystem = GetOption( + options, + "numberingSystem", + "string", + undefined, + undefined + ); + + if (numberingSystem !== undefined) { + numberingSystem = intl_ValidateAndCanonicalizeUnicodeExtensionType( + numberingSystem, + "numberingSystem", + "nu" + ); + } + + opt.nu = numberingSystem; + + // Compute formatting options. + // Step 12. + var style = GetOption( + options, + "style", + "string", + ["decimal", "percent", "currency", "unit"], + "decimal" + ); + lazyNumberFormatData.style = style; + + // Steps 14-17. + var currency = GetOption(options, "currency", "string", undefined, undefined); + + // Per the Intl.NumberFormat Unified API Proposal, this check should only + // happen for |style === "currency"|, which seems inconsistent, given that + // we normally validate all options when present, even the ones which are + // unused. + // TODO: File issue at <https://github.com/tc39/proposal-unified-intl-numberformat>. + if (currency !== undefined && !IsWellFormedCurrencyCode(currency)) { + ThrowRangeError(JSMSG_INVALID_CURRENCY_CODE, currency); + } + + var cDigits; + if (style === "currency") { + if (currency === undefined) { + ThrowTypeError(JSMSG_UNDEFINED_CURRENCY); + } + + // Steps 19.a-c. + currency = toASCIIUpperCase(currency); + lazyNumberFormatData.currency = currency; + cDigits = CurrencyDigits(currency); + } + + // Step 18. + var currencyDisplay = GetOption( + options, + "currencyDisplay", + "string", + ["code", "symbol", "narrowSymbol", "name"], + "symbol" + ); + if (style === "currency") { + lazyNumberFormatData.currencyDisplay = currencyDisplay; + } + + // Intl.NumberFormat Unified API Proposal + var currencySign = GetOption( + options, + "currencySign", + "string", + ["standard", "accounting"], + "standard" + ); + if (style === "currency") { + lazyNumberFormatData.currencySign = currencySign; + } + + // Intl.NumberFormat Unified API Proposal + var unit = GetOption(options, "unit", "string", undefined, undefined); + + // Aligned with |currency| check from above, see note about spec issue there. + if (unit !== undefined && !IsWellFormedUnitIdentifier(unit)) { + ThrowRangeError(JSMSG_INVALID_UNIT_IDENTIFIER, unit); + } + + var unitDisplay = GetOption( + options, + "unitDisplay", + "string", + ["short", "narrow", "long"], + "short" + ); + + if (style === "unit") { + if (unit === undefined) { + ThrowTypeError(JSMSG_UNDEFINED_UNIT); + } + + lazyNumberFormatData.unit = unit; + lazyNumberFormatData.unitDisplay = unitDisplay; + } + + // Steps 20-21. + var mnfdDefault, mxfdDefault; + if (style === "currency") { + mnfdDefault = cDigits; + mxfdDefault = cDigits; + } else { + mnfdDefault = 0; + mxfdDefault = style === "percent" ? 0 : 3; + } + + // Intl.NumberFormat Unified API Proposal + var notation = GetOption( + options, + "notation", + "string", + ["standard", "scientific", "engineering", "compact"], + "standard" + ); + lazyNumberFormatData.notation = notation; + + // Step 22. + SetNumberFormatDigitOptions( + lazyNumberFormatData, + options, + mnfdDefault, + mxfdDefault, + notation + ); + +#ifdef NIGHTLY_BUILD + // Intl.NumberFormat v3 Proposal + var roundingIncrement = GetNumberOption( + options, + "roundingIncrement", + 1, + 5000, + 1 + ); + switch (roundingIncrement) { + case 1: + case 2: + case 5: + case 10: + case 20: + case 25: + case 50: + case 100: + case 200: + case 250: + case 500: + case 1000: + case 2000: + case 2500: + case 5000: + break; + default: + ThrowRangeError( + JSMSG_INVALID_OPTION_VALUE, + "roundingIncrement", + roundingIncrement + ); + } + lazyNumberFormatData.roundingIncrement = roundingIncrement; + + if (roundingIncrement !== 1) { + // [[RoundingType]] must be `fractionDigits`. + if (lazyNumberFormatData.roundingPriority !== "auto") { + ThrowTypeError( + JSMSG_INVALID_NUMBER_OPTION, + "roundingIncrement", + "roundingPriority" + ); + } + if (hasOwn("minimumSignificantDigits", lazyNumberFormatData)) { + ThrowTypeError( + JSMSG_INVALID_NUMBER_OPTION, + "roundingIncrement", + "minimumSignificantDigits" + ); + } + + // Minimum and maximum fraction digits must be equal. + if ( + lazyNumberFormatData.minimumFractionDigits !== + lazyNumberFormatData.maximumFractionDigits + ) { + ThrowRangeError(JSMSG_UNEQUAL_FRACTION_DIGITS); + } + } +#else + lazyNumberFormatData.roundingIncrement = 1; +#endif + +#ifdef NIGHTLY_BUILD + // Intl.NumberFormat v3 Proposal + var trailingZeroDisplay = GetOption( + options, + "trailingZeroDisplay", + "string", + ["auto", "stripIfInteger"], + "auto" + ); + lazyNumberFormatData.trailingZeroDisplay = trailingZeroDisplay; +#else + lazyNumberFormatData.trailingZeroDisplay = "auto"; +#endif + + // Intl.NumberFormat Unified API Proposal + var compactDisplay = GetOption( + options, + "compactDisplay", + "string", + ["short", "long"], + "short" + ); + if (notation === "compact") { + lazyNumberFormatData.compactDisplay = compactDisplay; + } + + // Steps 23. +#ifdef NIGHTLY_BUILD + var defaultUseGrouping = notation !== "compact" ? "auto" : "min2"; + var useGrouping = GetStringOrBooleanOption( + options, + "useGrouping", + ["min2", "auto", "always"], + "always", + false, + defaultUseGrouping + ); +#else + var useGrouping = GetOption( + options, + "useGrouping", + "boolean", + undefined, + true + ); +#endif + lazyNumberFormatData.useGrouping = useGrouping; + + // Intl.NumberFormat Unified API Proposal + var signDisplay = GetOption( + options, + "signDisplay", + "string", +#ifdef NIGHTLY_BUILD + ["auto", "never", "always", "exceptZero", "negative"], +#else + ["auto", "never", "always", "exceptZero"], +#endif + "auto" + ); + lazyNumberFormatData.signDisplay = signDisplay; + +#ifdef NIGHTLY_BUILD + // Intl.NumberFormat v3 Proposal + var roundingMode = GetOption( + options, + "roundingMode", + "string", + [ + "ceil", + "floor", + "expand", + "trunc", + "halfCeil", + "halfFloor", + "halfExpand", + "halfTrunc", + "halfEven", + ], + "halfExpand" + ); + lazyNumberFormatData.roundingMode = roundingMode; +#else + lazyNumberFormatData.roundingMode = "halfExpand"; +#endif + + // Step 31. + // + // We've done everything that must be done now: mark the lazy data as fully + // computed and install it. + initializeIntlObject(numberFormat, "NumberFormat", lazyNumberFormatData); + + // 11.2.1, steps 4-5. + if ( + numberFormat !== thisValue && + callFunction( + std_Object_isPrototypeOf, + GetBuiltinPrototype("NumberFormat"), + thisValue + ) + ) { + DefineDataProperty( + thisValue, + intlFallbackSymbol(), + numberFormat, + ATTR_NONENUMERABLE | ATTR_NONCONFIGURABLE | ATTR_NONWRITABLE + ); + + return thisValue; + } + + // 11.2.1, step 6. + return numberFormat; +} +/* eslint-enable complexity */ + +/** + * Returns the number of decimal digits to be used for the given currency. + * + * Spec: ECMAScript Internationalization API Specification, 11.1.3. + */ +function CurrencyDigits(currency) { + assert(typeof currency === "string", "currency is a string value"); + assert(IsWellFormedCurrencyCode(currency), "currency is well-formed"); + assert(currency === toASCIIUpperCase(currency), "currency is all upper-case"); + + if (hasOwn(currency, currencyDigits)) { + return currencyDigits[currency]; + } + return 2; +} + +/** + * 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 Internationalization API Specification, 11.3.2. + */ +function Intl_NumberFormat_supportedLocalesOf(locales /*, options*/) { + var options = arguments.length > 1 ? arguments[1] : undefined; + + // Step 1. + var availableLocales = "NumberFormat"; + + // Step 2. + var requestedLocales = CanonicalizeLocaleList(locales); + + // Step 3. + return SupportedLocales(availableLocales, requestedLocales, options); +} + +function getNumberingSystems(locale) { + // ICU doesn't have an API to determine the set of numbering systems + // supported for a locale; it generally pretends that any numbering system + // can be used with any locale. Supporting a decimal numbering system + // (where only the digits are replaced) is easy, so we offer them all here. + // Algorithmic numbering systems are typically tied to one locale, so for + // lack of information we don't offer them. + // The one thing we can find out from ICU is the default numbering system + // for a locale. + var defaultNumberingSystem = intl_numberingSystem(locale); + return [defaultNumberingSystem, NUMBERING_SYSTEMS_WITH_SIMPLE_DIGIT_MAPPINGS]; +} + +function numberFormatLocaleData() { + return { + nu: getNumberingSystems, + default: { + nu: intl_numberingSystem, + }, + }; +} + +/** + * Create function to be cached and returned by Intl.NumberFormat.prototype.format. + * + * Spec: ECMAScript Internationalization API Specification, 11.1.4. + */ +function createNumberFormatFormat(nf) { + // This function is not inlined in $Intl_NumberFormat_format_get to avoid + // creating a call-object on each call to $Intl_NumberFormat_format_get. + return function(value) { + // Step 1 (implicit). + + // Step 2. + assert(IsObject(nf), "InitializeNumberFormat called with non-object"); + assert( + intl_GuardToNumberFormat(nf) !== null, + "InitializeNumberFormat called with non-NumberFormat" + ); + +#ifdef NIGHTLY_BUILD + var x = value; +#else + // Steps 3-4. + var x = ToNumeric(value); +#endif + + // Step 5. + return intl_FormatNumber(nf, x, /* formatToParts = */ false); + }; +} + +/** + * Returns a function bound to this NumberFormat that returns a String value + * representing the result of calling ToNumber(value) according to the + * effective locale and the formatting options of this NumberFormat. + * + * Spec: ECMAScript Internationalization API Specification, 11.4.3. + */ +// Uncloned functions with `$` prefix are allocated as extended function +// to store the original name in `SetCanonicalName`. +function $Intl_NumberFormat_format_get() { + // Steps 1-3. + var thisArg = UnwrapNumberFormat(this); + var nf = thisArg; + if (!IsObject(nf) || (nf = intl_GuardToNumberFormat(nf)) === null) { + return callFunction( + intl_CallNumberFormatMethodIfWrapped, + thisArg, + "$Intl_NumberFormat_format_get" + ); + } + + var internals = getNumberFormatInternals(nf); + + // Step 4. + if (internals.boundFormat === undefined) { + // Steps 4.a-c. + internals.boundFormat = createNumberFormatFormat(nf); + } + + // Step 5. + return internals.boundFormat; +} +SetCanonicalName($Intl_NumberFormat_format_get, "get format"); + +/** + * 11.4.4 Intl.NumberFormat.prototype.formatToParts ( value ) + */ +function Intl_NumberFormat_formatToParts(value) { + // Step 1. + var nf = this; + + // Steps 2-3. + if (!IsObject(nf) || (nf = intl_GuardToNumberFormat(nf)) === null) { + return callFunction( + intl_CallNumberFormatMethodIfWrapped, + this, + value, + "Intl_NumberFormat_formatToParts" + ); + } + +#ifdef NIGHTLY_BUILD + var x = value; +#else + // Step 4. + var x = ToNumeric(value); +#endif + + // Step 5. + return intl_FormatNumber(nf, x, /* formatToParts = */ true); +} + +/** + * Intl.NumberFormat.prototype.formatRange ( start, end ) + */ +function Intl_NumberFormat_formatRange(start, end) { + // Step 1. + var nf = this; + + // Step 2. + if (!IsObject(nf) || (nf = intl_GuardToNumberFormat(nf)) === null) { + return callFunction( + intl_CallNumberFormatMethodIfWrapped, + this, + start, + end, + "Intl_NumberFormat_formatRange" + ); + } + + // Step 3. + if (start === undefined || end === undefined) { + ThrowTypeError( + JSMSG_UNDEFINED_NUMBER, + start === undefined ? "start" : "end", + "NumberFormat", + "formatRange" + ); + } + + // Steps 4-6. + return intl_FormatNumberRange(nf, start, end, /* formatToParts = */ false); +} + +/** + * Intl.NumberFormat.prototype.formatRangeToParts ( start, end ) + */ +function Intl_NumberFormat_formatRangeToParts(start, end) { + // Step 1. + var nf = this; + + // Step 2. + if (!IsObject(nf) || (nf = intl_GuardToNumberFormat(nf)) === null) { + return callFunction( + intl_CallNumberFormatMethodIfWrapped, + this, + start, + end, + "Intl_NumberFormat_formatRangeToParts" + ); + } + + // Step 3. + if (start === undefined || end === undefined) { + ThrowTypeError( + JSMSG_UNDEFINED_NUMBER, + start === undefined ? "start" : "end", + "NumberFormat", + "formatRangeToParts" + ); + } + + // Steps 4-6. + return intl_FormatNumberRange(nf, start, end, /* formatToParts = */ true); +} + +/** + * Returns the resolved options for a NumberFormat object. + * + * Spec: ECMAScript Internationalization API Specification, 11.4.5. + */ +function Intl_NumberFormat_resolvedOptions() { + // Steps 1-3. + var thisArg = UnwrapNumberFormat(this); + var nf = thisArg; + if (!IsObject(nf) || (nf = intl_GuardToNumberFormat(nf)) === null) { + return callFunction( + intl_CallNumberFormatMethodIfWrapped, + thisArg, + "Intl_NumberFormat_resolvedOptions" + ); + } + + var internals = getNumberFormatInternals(nf); + + // Steps 4-5. + var result = { + locale: internals.locale, + numberingSystem: internals.numberingSystem, + style: internals.style, + }; + + // currency, currencyDisplay, and currencySign are only present for currency + // formatters. + assert( + hasOwn("currency", internals) === (internals.style === "currency"), + "currency is present iff style is 'currency'" + ); + assert( + hasOwn("currencyDisplay", internals) === (internals.style === "currency"), + "currencyDisplay is present iff style is 'currency'" + ); + assert( + hasOwn("currencySign", internals) === (internals.style === "currency"), + "currencySign is present iff style is 'currency'" + ); + + if (hasOwn("currency", internals)) { + DefineDataProperty(result, "currency", internals.currency); + DefineDataProperty(result, "currencyDisplay", internals.currencyDisplay); + DefineDataProperty(result, "currencySign", internals.currencySign); + } + + // unit and unitDisplay are only present for unit formatters. + assert( + hasOwn("unit", internals) === (internals.style === "unit"), + "unit is present iff style is 'unit'" + ); + assert( + hasOwn("unitDisplay", internals) === (internals.style === "unit"), + "unitDisplay is present iff style is 'unit'" + ); + + if (hasOwn("unit", internals)) { + DefineDataProperty(result, "unit", internals.unit); + DefineDataProperty(result, "unitDisplay", internals.unitDisplay); + } + + DefineDataProperty( + result, + "minimumIntegerDigits", + internals.minimumIntegerDigits + ); + + // Min/Max fraction digits are either both present or not present at all. + assert( + hasOwn("minimumFractionDigits", internals) === + hasOwn("maximumFractionDigits", internals), + "minimumFractionDigits is present iff maximumFractionDigits is present" + ); + + if (hasOwn("minimumFractionDigits", internals)) { + DefineDataProperty( + result, + "minimumFractionDigits", + internals.minimumFractionDigits + ); + DefineDataProperty( + result, + "maximumFractionDigits", + internals.maximumFractionDigits + ); + } + + // Min/Max significant digits are either both present or not present at all. + assert( + hasOwn("minimumSignificantDigits", internals) === + hasOwn("maximumSignificantDigits", internals), + "minimumSignificantDigits is present iff maximumSignificantDigits is present" + ); + + if (hasOwn("minimumSignificantDigits", internals)) { + DefineDataProperty( + result, + "minimumSignificantDigits", + internals.minimumSignificantDigits + ); + DefineDataProperty( + result, + "maximumSignificantDigits", + internals.maximumSignificantDigits + ); + } + + DefineDataProperty(result, "useGrouping", internals.useGrouping); + + var notation = internals.notation; + DefineDataProperty(result, "notation", notation); + + if (notation === "compact") { + DefineDataProperty(result, "compactDisplay", internals.compactDisplay); + } + + DefineDataProperty(result, "signDisplay", internals.signDisplay); + +#ifdef NIGHTLY_BUILD + DefineDataProperty(result, "roundingMode", internals.roundingMode); + DefineDataProperty(result, "roundingIncrement", internals.roundingIncrement); + DefineDataProperty( + result, + "trailingZeroDisplay", + internals.trailingZeroDisplay + ); + DefineDataProperty(result, "roundingPriority", internals.roundingPriority); +#endif + + // Step 6. + return result; +} |