tick-time

<!doctype html> <html lang="en"> <head> <title>Code coverage report for index.js</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="index.html">All files</a> index.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 100% Statements 63/63 </div> <div class='fl pad1y space-right2'> 100% Branches 28/28 </div> <div class='fl pad1y space-right2'> 100% Functions 9/9 </div> <div class='fl pad1y space-right2'> 100% Lines 63/63 </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116</td><td class="line-coverage quiet">1x   1x 1x 1x 1x 1x 1x     6x 6x 2x   4x 4x       9x 9x     9x       8x 8x           2x 2x 1x 1x         7x 1x   6x 6x 6x 3x 3x 3x   6x 6x 2x   4x 1x 1x 1x   4x 4x 2x   4x       8x 2x   6x 6x 2x   4x 4x 2x   4x         4x 1x 1x   3x 1x   2x   3x   4x 4x 3x   4x       1x   1x     1x            </td><td class="text"><pre class="prettyprint lang-js">const nano = require('nano-seconds');   const SECONDS_TO_EPOCH = 62135596800; const MS_PER_SEC = 1000; const NS_PER_TICK = 100; const TICKS_PER_MS = 10000; const MAX_TS = 253402300799999; const MIN_TS = -62135596800000;   function toString() { const us = `${this[1]}`; if (this[0] === 0) { return us; } const pad = '0000000'.substring(0, 7 - us.length); return `${this[0]}${pad}${us}`; }   function toTickObj([secs, ticks]) { const tarr = [secs, ticks]; Object.defineProperty(tarr, 'toString', { value: toString }); return Object.freeze(tarr); }   function tsToArray(ts) { const tickTs = ts + (SECONDS_TO_EPOCH * MS_PER_SEC); return [Math.trunc(tickTs / MS_PER_SEC), ~~(tickTs % MS_PER_SEC) * TICKS_PER_MS]; }       function rollOver(tickArr, overflow) { tickArr[1] += overflow; if (tickArr[1] < 0) { tickArr[1] += (TICKS_PER_MS * MS_PER_SEC); tickArr[0] -= 1; } }   function at(...args) { if (args.length < 2) { throw new Error('This function needs to be called with at least two numbers.'); } let ms = 0; let overflow = 0; if (args.length >= 7) { ms = Math.trunc(args[6] / TICKS_PER_MS); overflow = args[6] % TICKS_PER_MS; args[6] = ms; } let point = Date.UTC(...args); if (point < MIN_TS || point > MAX_TS) { throw new Error('This date is out of range of standard .NET DateTime(Offset)'); } if (args[0] < 100) { const pdate = new Date(point); pdate.setUTCFullYear(args[0]); point = pdate.getTime(); } const arr = tsToArray(point); if (overflow !== 0) { rollOver(arr, overflow); } return toTickObj(arr); }   function from(dtObj) { if (Object.prototype.toString.call(dtObj) !== '[object Date]') { throw new Error('Argument is not a date object'); } const point = dtObj.getTime(); if (point < MIN_TS || point > MAX_TS) { throw new Error('This date is out of range of standard .NET DateTime(Offset)'); } const arr = tsToArray(point); if (dtObj.getTicks) { arr[1] += dtObj.getTicks(); } return toTickObj(arr); }   function to(ticks) { let ts, extra; if (Array.isArray(ticks)) { ts = ticks[0] * MS_PER_SEC + Math.trunc(ticks[1] / TICKS_PER_MS); extra = ticks[1] % TICKS_PER_MS; } else { if (ticks.length <= 4) { ts = 0; } else { ts = parseInt(ticks.slice(0, -4), 10); } extra = parseInt(ticks.slice(-4), 10); } const dateObj = new Date(ts - (SECONDS_TO_EPOCH * MS_PER_SEC)); Object.defineProperty(dateObj, 'getTicks', { value: () => extra }); return dateObj; }   function now() { const [secs, ns] = nano.now(); // ~~ is fast truncation for numbers which don't exceed 32 bits return toTickObj([secs + SECONDS_TO_EPOCH, ~~(ns / NS_PER_TICK)]); }   module.exports = { ticksNow: now, ticksAt: at, ticksFromDate: from, ticksToDate: to };  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Fri May 19 2017 01:35:37 GMT-0300 (ADT) </div> </div> <script src="prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="sorter.js"></script> </body> </html>