1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/builtin/Number.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,40 @@ 1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.7 + 1.8 +/*global intl_NumberFormat: false, */ 1.9 + 1.10 + 1.11 +var numberFormatCache = new Record(); 1.12 + 1.13 + 1.14 +/** 1.15 + * Format this Number object into a string, using the locale and formatting options 1.16 + * provided. 1.17 + * 1.18 + * Spec: ECMAScript Language Specification, 5.1 edition, 15.7.4.3. 1.19 + * Spec: ECMAScript Internationalization API Specification, 13.2.1. 1.20 + */ 1.21 +function Number_toLocaleString() { 1.22 + // Steps 1-2. Note that valueOf enforces "this Number value" restrictions. 1.23 + var x = callFunction(std_Number_valueOf, this); 1.24 + 1.25 + // Steps 2-3. 1.26 + var locales = arguments.length > 0 ? arguments[0] : undefined; 1.27 + var options = arguments.length > 1 ? arguments[1] : undefined; 1.28 + 1.29 + // Step 4. 1.30 + var numberFormat; 1.31 + if (locales === undefined && options === undefined) { 1.32 + // This cache only optimizes for the old ES5 toLocaleString without 1.33 + // locales and options. 1.34 + if (numberFormatCache.numberFormat === undefined) 1.35 + numberFormatCache.numberFormat = intl_NumberFormat(locales, options); 1.36 + numberFormat = numberFormatCache.numberFormat; 1.37 + } else { 1.38 + numberFormat = intl_NumberFormat(locales, options); 1.39 + } 1.40 + 1.41 + // Step 5. 1.42 + return intl_FormatNumber(numberFormat, x); 1.43 +}