@formatjs/intl-pluralrules
Version:
Polyfill for Intl.PluralRules
148 lines (147 loc) • 6.01 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.PluralRules = void 0;
var tslib_1 = require("tslib");
var ecma402_abstract_1 = require("@formatjs/ecma402-abstract");
var InitializePluralRules_1 = require("./abstract/InitializePluralRules");
var ResolvePlural_1 = require("./abstract/ResolvePlural");
var get_internal_slots_1 = tslib_1.__importDefault(require("./get_internal_slots"));
function validateInstance(instance, method) {
if (!(instance instanceof PluralRules)) {
throw new TypeError("Method Intl.PluralRules.prototype.".concat(method, " called on incompatible receiver ").concat(String(instance)));
}
}
/**
* http://ecma-international.org/ecma-402/7.0/index.html#sec-pluralruleselect
* @param locale
* @param type
* @param _n
* @param param3
*/
function PluralRuleSelect(locale, type, _n, _a) {
var IntegerDigits = _a.IntegerDigits, NumberOfFractionDigits = _a.NumberOfFractionDigits, FractionDigits = _a.FractionDigits;
return PluralRules.localeData[locale].fn(NumberOfFractionDigits
? "".concat(IntegerDigits, ".").concat(FractionDigits)
: IntegerDigits, type === 'ordinal');
}
var PluralRules = /** @class */ (function () {
function PluralRules(locales, options) {
// test262/test/intl402/RelativeTimeFormat/constructor/constructor/newtarget-undefined.js
// Cannot use `new.target` bc of IE11 & TS transpiles it to something else
var newTarget = this && this instanceof PluralRules ? this.constructor : void 0;
if (!newTarget) {
throw new TypeError("Intl.PluralRules must be called with 'new'");
}
return (0, InitializePluralRules_1.InitializePluralRules)(this, locales, options, {
availableLocales: PluralRules.availableLocales,
relevantExtensionKeys: PluralRules.relevantExtensionKeys,
localeData: PluralRules.localeData,
getDefaultLocale: PluralRules.getDefaultLocale,
getInternalSlots: get_internal_slots_1.default,
});
}
PluralRules.prototype.resolvedOptions = function () {
validateInstance(this, 'resolvedOptions');
var opts = Object.create(null);
var internalSlots = (0, get_internal_slots_1.default)(this);
opts.locale = internalSlots.locale;
opts.type = internalSlots.type;
[
'minimumIntegerDigits',
'minimumFractionDigits',
'maximumFractionDigits',
'minimumSignificantDigits',
'maximumSignificantDigits',
].forEach(function (field) {
var val = internalSlots[field];
if (val !== undefined) {
opts[field] = val;
}
});
opts.pluralCategories = tslib_1.__spreadArray([], PluralRules.localeData[opts.locale].categories[opts.type], true);
return opts;
};
PluralRules.prototype.select = function (val) {
var pr = this;
validateInstance(pr, 'select');
var n = (0, ecma402_abstract_1.ToNumber)(val);
return (0, ResolvePlural_1.ResolvePlural)(pr, n, { getInternalSlots: get_internal_slots_1.default, PluralRuleSelect: PluralRuleSelect });
};
PluralRules.prototype.toString = function () {
return '[object Intl.PluralRules]';
};
PluralRules.supportedLocalesOf = function (locales, options) {
return (0, ecma402_abstract_1.SupportedLocales)(PluralRules.availableLocales, (0, ecma402_abstract_1.CanonicalizeLocaleList)(locales), options);
};
PluralRules.__addLocaleData = function () {
var data = [];
for (var _i = 0; _i < arguments.length; _i++) {
data[_i] = arguments[_i];
}
for (var _a = 0, data_1 = data; _a < data_1.length; _a++) {
var _b = data_1[_a], d = _b.data, locale = _b.locale;
PluralRules.localeData[locale] = d;
PluralRules.availableLocales.add(locale);
if (!PluralRules.__defaultLocale) {
PluralRules.__defaultLocale = locale;
}
}
};
PluralRules.getDefaultLocale = function () {
return PluralRules.__defaultLocale;
};
PluralRules.localeData = {};
PluralRules.availableLocales = new Set();
PluralRules.__defaultLocale = '';
PluralRules.relevantExtensionKeys = [];
PluralRules.polyfilled = true;
return PluralRules;
}());
exports.PluralRules = PluralRules;
try {
// IE11 does not have Symbol
if (typeof Symbol !== 'undefined') {
Object.defineProperty(PluralRules.prototype, Symbol.toStringTag, {
value: 'Intl.PluralRules',
writable: false,
enumerable: false,
configurable: true,
});
}
try {
// https://github.com/tc39/test262/blob/master/test/intl402/PluralRules/length.js
Object.defineProperty(PluralRules, 'length', {
value: 0,
writable: false,
enumerable: false,
configurable: true,
});
}
catch (error) {
// IE 11 sets Function.prototype.length to be non-configurable which will cause the
// above Object.defineProperty to throw an error.
}
// https://github.com/tc39/test262/blob/master/test/intl402/RelativeTimeFormat/constructor/length.js
Object.defineProperty(PluralRules.prototype.constructor, 'length', {
value: 0,
writable: false,
enumerable: false,
configurable: true,
});
// https://github.com/tc39/test262/blob/master/test/intl402/RelativeTimeFormat/constructor/supportedLocalesOf/length.js
Object.defineProperty(PluralRules.supportedLocalesOf, 'length', {
value: 1,
writable: false,
enumerable: false,
configurable: true,
});
Object.defineProperty(PluralRules, 'name', {
value: 'PluralRules',
writable: false,
enumerable: false,
configurable: true,
});
}
catch (ex) {
// Meta fixes for test262
}