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Diffstat (limited to 'node_modules/async/lib/async.js')
-rw-r--r-- | node_modules/async/lib/async.js | 1191 |
1 files changed, 1191 insertions, 0 deletions
diff --git a/node_modules/async/lib/async.js b/node_modules/async/lib/async.js new file mode 100644 index 000000000..07ffd8423 --- /dev/null +++ b/node_modules/async/lib/async.js @@ -0,0 +1,1191 @@ +/*! + * async + * https://github.com/caolan/async + * + * Copyright 2010-2014 Caolan McMahon + * Released under the MIT license + */ +(function () { + + var async = {}; + function noop() {} + + // global on the server, window in the browser + var root, previous_async; + + if (typeof window == 'object' && this === window) { + root = window; + } + else if (typeof global == 'object' && this === global) { + root = global; + } + else { + root = this; + } + + if (root != null) { + previous_async = root.async; + } + + async.noConflict = function () { + root.async = previous_async; + return async; + }; + + function only_once(fn) { + var called = false; + return function() { + if (called) throw new Error("Callback was already called."); + called = true; + fn.apply(this, arguments); + }; + } + + function _once(fn) { + var called = false; + return function() { + if (called) return; + called = true; + fn.apply(this, arguments); + }; + } + + //// cross-browser compatiblity functions //// + + var _toString = Object.prototype.toString; + + var _isArray = Array.isArray || function (obj) { + return _toString.call(obj) === '[object Array]'; + }; + + function _isArrayLike(arr) { + return _isArray(arr) || ( + // has a positive integer length property + typeof arr.length === "number" && + arr.length >= 0 && + arr.length % 1 === 0 + ); + } + + function _each(coll, iterator) { + return _isArrayLike(coll) ? + _arrayEach(coll, iterator) : + _forEachOf(coll, iterator); + } + + function _arrayEach(arr, iterator) { + var index = -1, + length = arr.length; + + while (++index < length) { + iterator(arr[index], index, arr); + } + } + + function _map(arr, iterator) { + var index = -1, + length = arr.length, + result = Array(length); + + while (++index < length) { + result[index] = iterator(arr[index], index, arr); + } + return result; + } + + function _range(count) { + return _map(Array(count), function (v, i) { return i; }); + } + + function _reduce(arr, iterator, memo) { + _arrayEach(arr, function (x, i, a) { + memo = iterator(memo, x, i, a); + }); + return memo; + } + + function _forEachOf(object, iterator) { + _arrayEach(_keys(object), function (key) { + iterator(object[key], key); + }); + } + + var _keys = Object.keys || function (obj) { + var keys = []; + for (var k in obj) { + if (obj.hasOwnProperty(k)) { + keys.push(k); + } + } + return keys; + }; + + function _keyIterator(coll) { + var i = -1; + var len; + var keys; + if (_isArrayLike(coll)) { + len = coll.length; + return function next() { + i++; + return i < len ? i : null; + }; + } else { + keys = _keys(coll); + len = keys.length; + return function next() { + i++; + return i < len ? keys[i] : null; + }; + } + } + + function _baseSlice(arr, start) { + start = start || 0; + var index = -1; + var length = arr.length; + + if (start) { + length -= start; + length = length < 0 ? 0 : length; + } + var result = Array(length); + + while (++index < length) { + result[index] = arr[index + start]; + } + return result; + } + + function _withoutIndex(iterator) { + return function (value, index, callback) { + return iterator(value, callback); + }; + } + + //// exported async module functions //// + + //// nextTick implementation with browser-compatible fallback //// + + // capture the global reference to guard against fakeTimer mocks + var _setImmediate; + if (typeof setImmediate === 'function') { + _setImmediate = setImmediate; + } + + if (typeof process === 'undefined' || !(process.nextTick)) { + if (_setImmediate) { + async.nextTick = function (fn) { + // not a direct alias for IE10 compatibility + _setImmediate(fn); + }; + async.setImmediate = async.nextTick; + } + else { + async.nextTick = function (fn) { + setTimeout(fn, 0); + }; + async.setImmediate = async.nextTick; + } + } + else { + async.nextTick = process.nextTick; + if (_setImmediate) { + async.setImmediate = function (fn) { + // not a direct alias for IE10 compatibility + _setImmediate(fn); + }; + } + else { + async.setImmediate = async.nextTick; + } + } + + async.forEach = + async.each = function (arr, iterator, callback) { + return async.eachOf(arr, _withoutIndex(iterator), callback); + }; + + async.forEachSeries = + async.eachSeries = function (arr, iterator, callback) { + return async.eachOfSeries(arr, _withoutIndex(iterator), callback); + }; + + + async.forEachLimit = + async.eachLimit = function (arr, limit, iterator, callback) { + return _eachOfLimit(limit)(arr, _withoutIndex(iterator), callback); + }; + + async.forEachOf = + async.eachOf = function (object, iterator, callback) { + callback = _once(callback || noop); + object = object || []; + var size = _isArrayLike(object) ? object.length : _keys(object).length; + var completed = 0; + if (!size) { + return callback(null); + } + _each(object, function (value, key) { + iterator(object[key], key, only_once(done)); + }); + function done(err) { + if (err) { + callback(err); + } + else { + completed += 1; + if (completed >= size) { + callback(null); + } + } + } + }; + + async.forEachOfSeries = + async.eachOfSeries = function (obj, iterator, callback) { + callback = _once(callback || noop); + obj = obj || []; + var nextKey = _keyIterator(obj); + var key = nextKey(); + function iterate() { + var sync = true; + if (key === null) { + return callback(null); + } + iterator(obj[key], key, only_once(function (err) { + if (err) { + callback(err); + } + else { + key = nextKey(); + if (key === null) { + return callback(null); + } else { + if (sync) { + async.nextTick(iterate); + } else { + iterate(); + } + } + } + })); + sync = false; + } + iterate(); + }; + + + + async.forEachOfLimit = + async.eachOfLimit = function (obj, limit, iterator, callback) { + _eachOfLimit(limit)(obj, iterator, callback); + }; + + function _eachOfLimit(limit) { + + return function (obj, iterator, callback) { + callback = _once(callback || noop); + obj = obj || []; + var nextKey = _keyIterator(obj); + if (limit <= 0) { + return callback(null); + } + var done = false; + var running = 0; + var errored = false; + + (function replenish () { + if (done && running <= 0) { + return callback(null); + } + + while (running < limit && !errored) { + var key = nextKey(); + if (key === null) { + done = true; + if (running <= 0) { + callback(null); + } + return; + } + running += 1; + iterator(obj[key], key, only_once(function (err) { + running -= 1; + if (err) { + callback(err); + errored = true; + } + else { + replenish(); + } + })); + } + })(); + }; + } + + + function doParallel(fn) { + return function (obj, iterator, callback) { + return fn(async.eachOf, obj, iterator, callback); + }; + } + function doParallelLimit(limit, fn) { + return function (obj, iterator, callback) { + return fn(_eachOfLimit(limit), obj, iterator, callback); + }; + } + function doSeries(fn) { + return function (obj, iterator, callback) { + return fn(async.eachOfSeries, obj, iterator, callback); + }; + } + + function _asyncMap(eachfn, arr, iterator, callback) { + callback = _once(callback || noop); + var results = []; + eachfn(arr, function (value, index, callback) { + iterator(value, function (err, v) { + results[index] = v; + callback(err); + }); + }, function (err) { + callback(err, results); + }); + } + + async.map = doParallel(_asyncMap); + async.mapSeries = doSeries(_asyncMap); + async.mapLimit = function (arr, limit, iterator, callback) { + return _mapLimit(limit)(arr, iterator, callback); + }; + + function _mapLimit(limit) { + return doParallelLimit(limit, _asyncMap); + } + + // reduce only has a series version, as doing reduce in parallel won't + // work in many situations. + async.inject = + async.foldl = + async.reduce = function (arr, memo, iterator, callback) { + async.eachOfSeries(arr, function (x, i, callback) { + iterator(memo, x, function (err, v) { + memo = v; + callback(err); + }); + }, function (err) { + callback(err || null, memo); + }); + }; + + async.foldr = + async.reduceRight = function (arr, memo, iterator, callback) { + var reversed = _map(arr, function (x) { + return x; + }).reverse(); + async.reduce(reversed, memo, iterator, callback); + }; + + function _filter(eachfn, arr, iterator, callback) { + var results = []; + arr = _map(arr, function (x, i) { + return {index: i, value: x}; + }); + eachfn(arr, function (x, index, callback) { + iterator(x.value, function (v) { + if (v) { + results.push(x); + } + callback(); + }); + }, function () { + callback(_map(results.sort(function (a, b) { + return a.index - b.index; + }), function (x) { + return x.value; + })); + }); + } + + async.select = + async.filter = doParallel(_filter); + + async.selectSeries = + async.filterSeries = doSeries(_filter); + + function _reject(eachfn, arr, iterator, callback) { + var results = []; + arr = _map(arr, function (x, i) { + return {index: i, value: x}; + }); + eachfn(arr, function (x, index, callback) { + iterator(x.value, function (v) { + if (!v) { + results.push(x); + } + callback(); + }); + }, function () { + callback(_map(results.sort(function (a, b) { + return a.index - b.index; + }), function (x) { + return x.value; + })); + }); + } + async.reject = doParallel(_reject); + async.rejectSeries = doSeries(_reject); + + function _detect(eachfn, arr, iterator, main_callback) { + eachfn(arr, function (x, index, callback) { + iterator(x, function (result) { + if (result) { + main_callback(x); + main_callback = noop; + } + else { + callback(); + } + }); + }, function () { + main_callback(); + }); + } + async.detect = doParallel(_detect); + async.detectSeries = doSeries(_detect); + + async.any = + async.some = function (arr, iterator, main_callback) { + async.eachOf(arr, function (x, _, callback) { + iterator(x, function (v) { + if (v) { + main_callback(true); + main_callback = noop; + } + callback(); + }); + }, function () { + main_callback(false); + }); + }; + + async.all = + async.every = function (arr, iterator, main_callback) { + async.eachOf(arr, function (x, _, callback) { + iterator(x, function (v) { + if (!v) { + main_callback(false); + main_callback = noop; + } + callback(); + }); + }, function () { + main_callback(true); + }); + }; + + async.sortBy = function (arr, iterator, callback) { + async.map(arr, function (x, callback) { + iterator(x, function (err, criteria) { + if (err) { + callback(err); + } + else { + callback(null, {value: x, criteria: criteria}); + } + }); + }, function (err, results) { + if (err) { + return callback(err); + } + else { + callback(null, _map(results.sort(comparator), function (x) { + return x.value; + })); + } + + }); + + function comparator(left, right) { + var a = left.criteria, b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + } + }; + + async.auto = function (tasks, callback) { + callback = _once(callback || noop); + var keys = _keys(tasks); + var remainingTasks = keys.length; + if (!remainingTasks) { + return callback(null); + } + + var results = {}; + + var listeners = []; + function addListener(fn) { + listeners.unshift(fn); + } + function removeListener(fn) { + for (var i = 0; i < listeners.length; i += 1) { + if (listeners[i] === fn) { + listeners.splice(i, 1); + return; + } + } + } + function taskComplete() { + remainingTasks--; + _arrayEach(listeners.slice(0), function (fn) { + fn(); + }); + } + + addListener(function () { + if (!remainingTasks) { + callback(null, results); + } + }); + + _arrayEach(keys, function (k) { + var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]]; + function taskCallback(err) { + var args = _baseSlice(arguments, 1); + if (args.length <= 1) { + args = args[0]; + } + if (err) { + var safeResults = {}; + _arrayEach(_keys(results), function(rkey) { + safeResults[rkey] = results[rkey]; + }); + safeResults[k] = args; + callback(err, safeResults); + } + else { + results[k] = args; + async.setImmediate(taskComplete); + } + } + var requires = task.slice(0, Math.abs(task.length - 1)) || []; + // prevent dead-locks + var len = requires.length; + var dep; + while (len--) { + if (!(dep = tasks[requires[len]])) { + throw new Error('Has inexistant dependency'); + } + if (_isArray(dep) && !!~dep.indexOf(k)) { + throw new Error('Has cyclic dependencies'); + } + } + function ready() { + return _reduce(requires, function (a, x) { + return (a && results.hasOwnProperty(x)); + }, true) && !results.hasOwnProperty(k); + } + if (ready()) { + task[task.length - 1](taskCallback, results); + } + else { + addListener(listener); + } + function listener() { + if (ready()) { + removeListener(listener); + task[task.length - 1](taskCallback, results); + } + } + }); + }; + + async.retry = function(times, task, callback) { + var DEFAULT_TIMES = 5; + var attempts = []; + // Use defaults if times not passed + if (typeof times === 'function') { + callback = task; + task = times; + times = DEFAULT_TIMES; + } + // Make sure times is a number + times = parseInt(times, 10) || DEFAULT_TIMES; + + function wrappedTask(wrappedCallback, wrappedResults) { + function retryAttempt(task, finalAttempt) { + return function(seriesCallback) { + task(function(err, result){ + seriesCallback(!err || finalAttempt, {err: err, result: result}); + }, wrappedResults); + }; + } + + while (times) { + attempts.push(retryAttempt(task, !(times-=1))); + } + async.series(attempts, function(done, data){ + data = data[data.length - 1]; + (wrappedCallback || callback)(data.err, data.result); + }); + } + + // If a callback is passed, run this as a controll flow + return callback ? wrappedTask() : wrappedTask; + }; + + async.waterfall = function (tasks, callback) { + callback = _once(callback || noop); + if (!_isArray(tasks)) { + var err = new Error('First argument to waterfall must be an array of functions'); + return callback(err); + } + if (!tasks.length) { + return callback(); + } + function wrapIterator(iterator) { + return function (err) { + if (err) { + callback.apply(null, arguments); + } + else { + var args = _baseSlice(arguments, 1); + var next = iterator.next(); + if (next) { + args.push(wrapIterator(next)); + } + else { + args.push(callback); + } + ensureAsync(iterator).apply(null, args); + } + }; + } + wrapIterator(async.iterator(tasks))(); + }; + + function _parallel(eachfn, tasks, callback) { + callback = callback || noop; + var results = _isArrayLike(tasks) ? [] : {}; + + eachfn(tasks, function (task, key, callback) { + task(function (err) { + var args = _baseSlice(arguments, 1); + if (args.length <= 1) { + args = args[0]; + } + results[key] = args; + callback(err); + }); + }, function (err) { + callback(err, results); + }); + } + + async.parallel = function (tasks, callback) { + _parallel(async.eachOf, tasks, callback); + }; + + async.parallelLimit = function(tasks, limit, callback) { + _parallel(_eachOfLimit(limit), tasks, callback); + }; + + async.series = function (tasks, callback) { + callback = callback || noop; + var results = _isArrayLike(tasks) ? [] : {}; + + async.eachOfSeries(tasks, function (task, key, callback) { + task(function (err) { + var args = _baseSlice(arguments, 1); + if (args.length <= 1) { + args = args[0]; + } + results[key] = args; + callback(err); + }); + }, function (err) { + callback(err, results); + }); + }; + + async.iterator = function (tasks) { + function makeCallback(index) { + function fn() { + if (tasks.length) { + tasks[index].apply(null, arguments); + } + return fn.next(); + } + fn.next = function () { + return (index < tasks.length - 1) ? makeCallback(index + 1): null; + }; + return fn; + } + return makeCallback(0); + }; + + async.apply = function (fn) { + var args = _baseSlice(arguments, 1); + return function () { + return fn.apply( + null, args.concat(_baseSlice(arguments)) + ); + }; + }; + + function _concat(eachfn, arr, fn, callback) { + var result = []; + eachfn(arr, function (x, index, cb) { + fn(x, function (err, y) { + result = result.concat(y || []); + cb(err); + }); + }, function (err) { + callback(err, result); + }); + } + async.concat = doParallel(_concat); + async.concatSeries = doSeries(_concat); + + async.whilst = function (test, iterator, callback) { + if (test()) { + iterator(function (err) { + if (err) { + return callback(err); + } + async.whilst(test, iterator, callback); + }); + } + else { + callback(null); + } + }; + + async.doWhilst = function (iterator, test, callback) { + iterator(function (err) { + if (err) { + return callback(err); + } + var args = _baseSlice(arguments, 1); + if (test.apply(null, args)) { + async.doWhilst(iterator, test, callback); + } + else { + callback(null); + } + }); + }; + + async.until = function (test, iterator, callback) { + if (!test()) { + iterator(function (err) { + if (err) { + return callback(err); + } + async.until(test, iterator, callback); + }); + } + else { + callback(null); + } + }; + + async.doUntil = function (iterator, test, callback) { + iterator(function (err) { + if (err) { + return callback(err); + } + var args = _baseSlice(arguments, 1); + if (!test.apply(null, args)) { + async.doUntil(iterator, test, callback); + } + else { + callback(null); + } + }); + }; + + function _queue(worker, concurrency, payload) { + if (concurrency == null) { + concurrency = 1; + } + else if(concurrency === 0) { + throw new Error('Concurrency must not be zero'); + } + function _insert(q, data, pos, callback) { + if (callback != null && typeof callback !== "function") { + throw new Error("task callback must be a function"); + } + q.started = true; + if (!_isArray(data)) { + data = [data]; + } + if(data.length === 0 && q.idle()) { + // call drain immediately if there are no tasks + return async.setImmediate(function() { + q.drain(); + }); + } + _arrayEach(data, function(task) { + var item = { + data: task, + callback: callback || noop + }; + + if (pos) { + q.tasks.unshift(item); + } else { + q.tasks.push(item); + } + + if (q.tasks.length === q.concurrency) { + q.saturated(); + } + }); + async.setImmediate(q.process); + } + function _next(q, tasks) { + return function(){ + workers -= 1; + var args = arguments; + _arrayEach(tasks, function (task) { + task.callback.apply(task, args); + }); + if (q.tasks.length + workers === 0) { + q.drain(); + } + q.process(); + }; + } + + var workers = 0; + var q = { + tasks: [], + concurrency: concurrency, + saturated: noop, + empty: noop, + drain: noop, + started: false, + paused: false, + push: function (data, callback) { + _insert(q, data, false, callback); + }, + kill: function () { + q.drain = noop; + q.tasks = []; + }, + unshift: function (data, callback) { + _insert(q, data, true, callback); + }, + process: function () { + if (!q.paused && workers < q.concurrency && q.tasks.length) { + while(workers < q.concurrency && q.tasks.length){ + var tasks = payload ? + q.tasks.splice(0, payload) : + q.tasks.splice(0, q.tasks.length); + + var data = _map(tasks, function (task) { + return task.data; + }); + + if (q.tasks.length === 0) { + q.empty(); + } + workers += 1; + var cb = only_once(_next(q, tasks)); + worker(data, cb); + } + } + }, + length: function () { + return q.tasks.length; + }, + running: function () { + return workers; + }, + idle: function() { + return q.tasks.length + workers === 0; + }, + pause: function () { + q.paused = true; + }, + resume: function () { + if (q.paused === false) { return; } + q.paused = false; + var resumeCount = Math.min(q.concurrency, q.tasks.length); + // Need to call q.process once per concurrent + // worker to preserve full concurrency after pause + for (var w = 1; w <= resumeCount; w++) { + async.setImmediate(q.process); + } + } + }; + return q; + } + + async.queue = function (worker, concurrency) { + var q = _queue(function (items, cb) { + worker(items[0], cb); + }, concurrency, 1); + + return q; + }; + + async.priorityQueue = function (worker, concurrency) { + + function _compareTasks(a, b){ + return a.priority - b.priority; + } + + function _binarySearch(sequence, item, compare) { + var beg = -1, + end = sequence.length - 1; + while (beg < end) { + var mid = beg + ((end - beg + 1) >>> 1); + if (compare(item, sequence[mid]) >= 0) { + beg = mid; + } else { + end = mid - 1; + } + } + return beg; + } + + function _insert(q, data, priority, callback) { + if (callback != null && typeof callback !== "function") { + throw new Error("task callback must be a function"); + } + q.started = true; + if (!_isArray(data)) { + data = [data]; + } + if(data.length === 0) { + // call drain immediately if there are no tasks + return async.setImmediate(function() { + q.drain(); + }); + } + _arrayEach(data, function(task) { + var item = { + data: task, + priority: priority, + callback: typeof callback === 'function' ? callback : noop + }; + + q.tasks.splice(_binarySearch(q.tasks, item, _compareTasks) + 1, 0, item); + + if (q.tasks.length === q.concurrency) { + q.saturated(); + } + async.setImmediate(q.process); + }); + } + + // Start with a normal queue + var q = async.queue(worker, concurrency); + + // Override push to accept second parameter representing priority + q.push = function (data, priority, callback) { + _insert(q, data, priority, callback); + }; + + // Remove unshift function + delete q.unshift; + + return q; + }; + + async.cargo = function (worker, payload) { + return _queue(worker, 1, payload); + }; + + function _console_fn(name) { + return function (fn) { + var args = _baseSlice(arguments, 1); + fn.apply(null, args.concat([function (err) { + var args = _baseSlice(arguments, 1); + if (typeof console !== 'undefined') { + if (err) { + if (console.error) { + console.error(err); + } + } + else if (console[name]) { + _arrayEach(args, function (x) { + console[name](x); + }); + } + } + }])); + }; + } + async.log = _console_fn('log'); + async.dir = _console_fn('dir'); + /*async.info = _console_fn('info'); + async.warn = _console_fn('warn'); + async.error = _console_fn('error');*/ + + async.memoize = function (fn, hasher) { + var memo = {}; + var queues = {}; + hasher = hasher || function (x) { + return x; + }; + function memoized() { + var args = _baseSlice(arguments); + var callback = args.pop(); + var key = hasher.apply(null, args); + if (key in memo) { + async.nextTick(function () { + callback.apply(null, memo[key]); + }); + } + else if (key in queues) { + queues[key].push(callback); + } + else { + queues[key] = [callback]; + fn.apply(null, args.concat([function () { + memo[key] = _baseSlice(arguments); + var q = queues[key]; + delete queues[key]; + for (var i = 0, l = q.length; i < l; i++) { + q[i].apply(null, arguments); + } + }])); + } + } + memoized.memo = memo; + memoized.unmemoized = fn; + return memoized; + }; + + async.unmemoize = function (fn) { + return function () { + return (fn.unmemoized || fn).apply(null, arguments); + }; + }; + + function _times(mapper) { + return function (count, iterator, callback) { + mapper(_range(count), iterator, callback); + }; + } + + async.times = _times(async.map); + async.timesSeries = _times(async.mapSeries); + async.timesLimit = function (count, limit, iterator, callback) { + return async.mapLimit(_range(count), limit, iterator, callback); + }; + + async.seq = function (/* functions... */) { + var fns = arguments; + return function () { + var that = this; + var args = _baseSlice(arguments); + + var callback = args.slice(-1)[0]; + if (typeof callback == 'function') { + args.pop(); + } else { + callback = noop; + } + + async.reduce(fns, args, function (newargs, fn, cb) { + fn.apply(that, newargs.concat([function () { + var err = arguments[0]; + var nextargs = _baseSlice(arguments, 1); + cb(err, nextargs); + }])); + }, + function (err, results) { + callback.apply(that, [err].concat(results)); + }); + }; + }; + + async.compose = function (/* functions... */) { + return async.seq.apply(null, Array.prototype.reverse.call(arguments)); + }; + + + function _applyEach(eachfn, fns /*args...*/) { + function go() { + var that = this; + var args = _baseSlice(arguments); + var callback = args.pop(); + return eachfn(fns, function (fn, _, cb) { + fn.apply(that, args.concat([cb])); + }, + callback); + } + if (arguments.length > 2) { + var args = _baseSlice(arguments, 2); + return go.apply(this, args); + } + else { + return go; + } + } + + async.applyEach = function (/*fns, args...*/) { + var args = _baseSlice(arguments); + return _applyEach.apply(null, [async.eachOf].concat(args)); + }; + async.applyEachSeries = function (/*fns, args...*/) { + var args = _baseSlice(arguments); + return _applyEach.apply(null, [async.eachOfSeries].concat(args)); + }; + + + async.forever = function (fn, callback) { + var done = only_once(callback || noop); + var task = ensureAsync(fn); + function next(err) { + if (err) { + return done(err); + } + task(next); + } + next(); + }; + + function ensureAsync(fn) { + return function (/*...args, callback*/) { + var args = _baseSlice(arguments); + var callback = args.pop(); + args.push(function () { + var innerArgs = arguments; + if (sync) { + async.setImmediate(function () { + callback.apply(null, innerArgs); + }); + } else { + callback.apply(null, innerArgs); + } + }); + var sync = true; + fn.apply(this, args); + sync = false; + }; + } + + async.ensureAsync = ensureAsync; + + // Node.js + if (typeof module !== 'undefined' && module.exports) { + module.exports = async; + } + // AMD / RequireJS + else if (typeof define !== 'undefined' && define.amd) { + define([], function () { + return async; + }); + } + // included directly via <script> tag + else { + root.async = async; + } + +}()); |