58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
|
'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;
|
||
|
|
}
|