| |
| |
|
|
| function defaultSetTimout() { |
| throw new Error('setTimeout has not been defined') |
| } |
| function defaultClearTimeout() { |
| throw new Error('clearTimeout has not been defined') |
| } |
| var cachedSetTimeout = defaultSetTimout |
| var cachedClearTimeout = defaultClearTimeout |
| if (typeof global.setTimeout === 'function') { |
| cachedSetTimeout = setTimeout |
| } |
| if (typeof global.clearTimeout === 'function') { |
| cachedClearTimeout = clearTimeout |
| } |
|
|
| function runTimeout(fun) { |
| if (cachedSetTimeout === setTimeout) { |
| |
| return setTimeout(fun, 0) |
| } |
| |
| if ( |
| (cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && |
| setTimeout |
| ) { |
| cachedSetTimeout = setTimeout |
| return setTimeout(fun, 0) |
| } |
| try { |
| |
| return cachedSetTimeout(fun, 0) |
| } catch (e) { |
| try { |
| |
| return cachedSetTimeout.call(null, fun, 0) |
| } catch (e) { |
| |
| return cachedSetTimeout.call(this, fun, 0) |
| } |
| } |
| } |
| function runClearTimeout(marker) { |
| if (cachedClearTimeout === clearTimeout) { |
| |
| return clearTimeout(marker) |
| } |
| |
| if ( |
| (cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && |
| clearTimeout |
| ) { |
| cachedClearTimeout = clearTimeout |
| return clearTimeout(marker) |
| } |
| try { |
| |
| return cachedClearTimeout(marker) |
| } catch (e) { |
| try { |
| |
| return cachedClearTimeout.call(null, marker) |
| } catch (e) { |
| |
| |
| return cachedClearTimeout.call(this, marker) |
| } |
| } |
| } |
| var queue = [] |
| var draining = false |
| var currentQueue |
| var queueIndex = -1 |
|
|
| function cleanUpNextTick() { |
| if (!draining || !currentQueue) { |
| return |
| } |
| draining = false |
| if (currentQueue.length) { |
| queue = currentQueue.concat(queue) |
| } else { |
| queueIndex = -1 |
| } |
| if (queue.length) { |
| drainQueue() |
| } |
| } |
|
|
| function drainQueue() { |
| if (draining) { |
| return |
| } |
| var timeout = runTimeout(cleanUpNextTick) |
| draining = true |
|
|
| var len = queue.length |
| while (len) { |
| currentQueue = queue |
| queue = [] |
| while (++queueIndex < len) { |
| if (currentQueue) { |
| currentQueue[queueIndex].run() |
| } |
| } |
| queueIndex = -1 |
| len = queue.length |
| } |
| currentQueue = null |
| draining = false |
| runClearTimeout(timeout) |
| } |
| function nextTick(fun) { |
| var args = new Array(arguments.length - 1) |
| if (arguments.length > 1) { |
| for (var i = 1; i < arguments.length; i++) { |
| args[i - 1] = arguments[i] |
| } |
| } |
| queue.push(new Item(fun, args)) |
| if (queue.length === 1 && !draining) { |
| runTimeout(drainQueue) |
| } |
| } |
| |
| function Item(fun, array) { |
| this.fun = fun |
| this.array = array |
| } |
| Item.prototype.run = function() { |
| this.fun.apply(null, this.array) |
| } |
| var title = 'browser' |
| var platform = 'browser' |
| var browser = true |
| var env = {} |
| var argv = [] |
| var version = '' |
| var versions = {} |
| var release = {} |
| var config = {} |
|
|
| function noop() {} |
|
|
| var on = noop |
| var addListener = noop |
| var once = noop |
| var off = noop |
| var removeListener = noop |
| var removeAllListeners = noop |
| var emit = noop |
|
|
| function binding(name) { |
| throw new Error('process.binding is not supported') |
| } |
|
|
| function cwd() { |
| return '/' |
| } |
| function chdir(dir) { |
| throw new Error('process.chdir is not supported') |
| } |
| function umask() { |
| return 0 |
| } |
|
|
| |
| var performance = global.performance || {} |
| var performanceNow = |
| performance.now || |
| performance.mozNow || |
| performance.msNow || |
| performance.oNow || |
| performance.webkitNow || |
| function() { |
| return new Date().getTime() |
| } |
|
|
| |
| |
| function hrtime(previousTimestamp) { |
| var clocktime = performanceNow.call(performance) * 1e-3 |
| var seconds = Math.floor(clocktime) |
| var nanoseconds = Math.floor((clocktime % 1) * 1e9) |
| if (previousTimestamp) { |
| seconds = seconds - previousTimestamp[0] |
| nanoseconds = nanoseconds - previousTimestamp[1] |
| if (nanoseconds < 0) { |
| seconds-- |
| nanoseconds += 1e9 |
| } |
| } |
| return [seconds, nanoseconds] |
| } |
|
|
| var startTime = new Date() |
| function uptime() { |
| var currentTime = new Date() |
| var dif = currentTime - startTime |
| return dif / 1000 |
| } |
|
|
| export var process = { |
| nextTick: nextTick, |
| title: title, |
| browser: browser, |
| env: env, |
| argv: argv, |
| version: version, |
| versions: versions, |
| on: on, |
| addListener: addListener, |
| once: once, |
| off: off, |
| removeListener: removeListener, |
| removeAllListeners: removeAllListeners, |
| emit: emit, |
| binding: binding, |
| cwd: cwd, |
| chdir: chdir, |
| umask: umask, |
| hrtime: hrtime, |
| platform: platform, |
| release: release, |
| config: config, |
| uptime: uptime, |
| } |
|
|
| |
|
|
| const defines = {} |
| Object.keys(defines).forEach((key) => { |
| const segs = key.split('.') |
| let target = process |
| for (let i = 0; i < segs.length; i++) { |
| const seg = segs[i] |
| if (i === segs.length - 1) { |
| target[seg] = defines[key] |
| } else { |
| target = target[seg] || (target[seg] = {}) |
| } |
| } |
| }) |
|
|