| 'use strict'; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.default = unpackFeature; |
| |
| var _statuses = require('../lib/statuses'); |
| |
| var _statuses2 = _interopRequireDefault(_statuses); |
| |
| var _supported = require('../lib/supported'); |
| |
| var _supported2 = _interopRequireDefault(_supported); |
| |
| var _browsers = require('./browsers'); |
| |
| var _browserVersions = require('./browserVersions'); |
| |
| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
| |
| var MATH2LOG = Math.log(2); |
| |
| function unpackSupport(cipher) { |
| // bit flags |
| var stats = Object.keys(_supported2.default).reduce(function (list, support) { |
| if (cipher & _supported2.default[support]) list.push(support); |
| return list; |
| }, []); |
| |
| // notes |
| var notes = cipher >> 7; |
| var notesArray = []; |
| while (notes) { |
| var note = Math.floor(Math.log(notes) / MATH2LOG) + 1; |
| notesArray.unshift('#' + note); |
| notes -= Math.pow(2, note - 1); |
| } |
| |
| return stats.concat(notesArray).join(' '); |
| } |
| |
| function unpackFeature(packed) { |
| var unpacked = { status: _statuses2.default[packed.B], title: packed.C }; |
| unpacked.stats = Object.keys(packed.A).reduce(function (browserStats, key) { |
| var browser = packed.A[key]; |
| browserStats[_browsers.browsers[key]] = Object.keys(browser).reduce(function (stats, support) { |
| var packedVersions = browser[support].split(' '); |
| var unpacked = unpackSupport(support); |
| packedVersions.forEach(function (v) { |
| return stats[_browserVersions.browserVersions[v]] = unpacked; |
| }); |
| return stats; |
| }, {}); |
| return browserStats; |
| }, {}); |
| return unpacked; |
| } |