diff options
| author | Alex Early <alexander.early@gmail.com> | 2016-02-23 16:19:38 -0800 |
|---|---|---|
| committer | Alex Early <alexander.early@gmail.com> | 2016-02-23 16:19:38 -0800 |
| commit | 3d1781cbb9a215b30fc03c2135309fe3579e5689 (patch) | |
| tree | e26f489e37ae3a227867b3d1dfe6c04afa361c23 | |
| parent | 01205e053b16c7843a3d4d3c9075b33de5adb2d0 (diff) | |
| parent | 070ed49496d5cf0b3c31a8091608610961191238 (diff) | |
| download | async-3d1781cbb9a215b30fc03c2135309fe3579e5689.tar.gz | |
Merge pull request #996 from caolan/modularization
Modularization
119 files changed, 5194 insertions, 2739 deletions
diff --git a/.babelrc b/.babelrc new file mode 100644 index 0000000..c13c5f6 --- /dev/null +++ b/.babelrc @@ -0,0 +1,3 @@ +{ + "presets": ["es2015"] +} diff --git a/.editorconfig b/.editorconfig index 7f502d4..44b5d31 100644 --- a/.editorconfig +++ b/.editorconfig @@ -8,3 +8,10 @@ trim_trailing_whitespace = true insert_final_newline = true indent_style = space indent_size = 4 + +[package.json] +indent_size = 2 + +[Makefile] +indent_style = tab +indent_size = 4 @@ -1,6 +1,10 @@ node_modules -dist perf/versions nyc_output coverage *.log +.DS_Store +npm-debug.log +tmp +build +build-es diff --git a/.gitmodules b/.gitmodules deleted file mode 100644 index a9aae98..0000000 --- a/.gitmodules +++ /dev/null @@ -1,9 +0,0 @@ -[submodule "deps/nodeunit"] - path = deps/nodeunit - url = git://github.com/caolan/nodeunit.git -[submodule "deps/UglifyJS"] - path = deps/UglifyJS - url = https://github.com/mishoo/UglifyJS.git -[submodule "deps/nodelint"] - path = deps/nodelint - url = https://github.com/tav/nodelint.git @@ -1,3 +1,4 @@ { - "validateIndentation": 4 -}
\ No newline at end of file + "validateIndentation": 4, + "esnext": true +} @@ -9,6 +9,7 @@ "trailing": true, "evil": true, "laxcomma": true, + "esnext": true, // Relaxing options "onevar": false, @@ -24,6 +25,8 @@ "define": true, "describe": true, "context": true, - "it": true + "it": true, + "before": true, + "after": true } } diff --git a/.npmignore b/.npmignore new file mode 100644 index 0000000..4274f79 --- /dev/null +++ b/.npmignore @@ -0,0 +1,4 @@ +lib +scripts +support/dependencies.json +support/module_template.md @@ -1,37 +1,123 @@ +# This makefile is meant to be run on OSX/Linux. Make sure any artifacts +# created here are checked in so people on all platforms can run npm scripts. +# This build should be run once per release. + export PATH := ./node_modules/.bin/:$(PATH):./bin/ PACKAGE = asyncjs -XYZ = node_modules/.bin/xyz --repo git@github.com:caolan/async.git +REQUIRE_NAME = async +BABEL_NODE = babel-node +UGLIFY = uglifyjs +XYZ = support/xyz.sh --repo git@github.com:caolan/async.git + +BUILDDIR = build +BUILD_ES = build-es +DIST = dist +SRC = lib/index.js +SCRIPTS = ./support +JS_SRC = $(shell find lib/ -type f -name '*.js') +LINT_FILES = lib/ test/ mocha_test/ $(shell find perf/ -maxdepth 2 -type f) support/ gulpfile.js karma.conf.js -BUILDDIR = dist -SRC = lib/async.js +UMD_BUNDLE = $(BUILDDIR)/dist/async.js +UMD_BUNDLE_MIN = $(BUILDDIR)/dist/async.min.js +CJS_BUNDLE = $(BUILDDIR)/index.js +ES_MODULES = $(patsubst lib/%.js, build-es/%.js, $(JS_SRC)) -all: lint test clean build -build: $(wildcard lib/*.js) - mkdir -p $(BUILDDIR) - cp $(SRC) $(BUILDDIR)/async.js - uglifyjs $(BUILDDIR)/async.js -mc \ - --source-map $(BUILDDIR)/async.min.map \ - -o $(BUILDDIR)/async.min.js +all: clean lint build test test: - nodeunit test + npm test clean: rm -rf $(BUILDDIR) + rm -rf $(BUILD_ES) + rm -rf $(DIST) + rm -rf tmp/ lint: - jshint $(SRC) test/*.js mocha_test/* perf/*.js - jscs $(SRC) test/*.js mocha_test/* perf/*.js + jshint $(LINT_FILES) + jscs $(LINT_FILES) -.PHONY: test lint build all clean +# Compile the ES6 modules to singular bundles, and individual bundles +build-bundle: build-modules $(UMD_BUNDLE) $(CJS_BUNDLE) + +build-modules: + $(BABEL_NODE) $(SCRIPTS)/build/modules-cjs.js + +$(UMD_BUNDLE): $(JS_SRC) package.json + mkdir -p "$(@D)" + $(BABEL_NODE) $(SCRIPTS)/build/aggregate-bundle.js + +$(CJS_BUNDLE): $(JS_SRC) package.json + $(BABEL_NODE) $(SCRIPTS)/build/aggregate-cjs.js + +# Create the minified UMD versions and copy them to dist/ for bower +build-dist: $(DIST) $(UMD_BUNDLE) $(UMD_BUNDLE_MIN) $(DIST)/async.js $(DIST)/async.min.js + +$(DIST): + mkdir -p $@ + +$(UMD_BUNDLE_MIN): $(UMD_BUNDLE) + mkdir -p "$(@D)" + $(UGLIFY) $< --mangle --compress \ + --source-map $(DIST)/async.min.map \ + -o $@ + +$(DIST)/async.js: $(UMD_BUNDLE) + cp $< $@ + +$(DIST)/async.min.js: $(UMD_BUNDLE_MIN) + cp $< $@ + +build-es: $(ES_MODULES) + +$(BUILD_ES)/%.js: lib/%.js + mkdir -p "$(@D)" + sed -r "s/(import.+)lodash/\1lodash-es/g" $< > $@ +test-build: + mocha support/build.test.js + +build-config: $(BUILDDIR)/package.json $(BUILDDIR)/component.json $(BUILDDIR)/bower.json $(BUILDDIR)/README.md $(BUILDDIR)/LICENSE $(BUILDDIR)/CHANGELOG.md + +build-es-config: $(BUILD_ES)/package.json $(BUILD_ES)/README.md $(BUILD_ES)/LICENSE $(BUILD_ES)/CHANGELOG.md + +bower.json: package.json + support/sync-package-managers.js + +component.json: package.json + support/sync-package-managers.js + +$(BUILDDIR)/package.json: package.json + mkdir -p "$(@D)" + support/sync-cjs-package.js > $@ + +$(BUILDDIR)/%: % + mkdir -p "$(@D)" + cp $< $@ + +$(BUILD_ES)/package.json: package.json + mkdir -p "$(@D)" + support/sync-es-package.js > $@ + +$(BUILD_ES)/%: % + mkdir -p "$(@D)" + cp $< $@ + +.PHONY: build-modules build-bundle build-dist build-es build-config build-es-config test-build + +build: clean build-bundle build-dist build-es build-config build-es-config test-build + +.PHONY: test lint build all clean .PHONY: release-major release-minor release-patch release-major release-minor release-patch: all - ./support/sync-package-managers.js - git add --force *.json - git add --force $(BUILDDIR) + git add --force $(DIST) git commit -am "update minified build"; true $(XYZ) --increment $(@:release-%=%) + # build again to propagate the version + $(MAKE) build-config + $(MAKE) build-es-config + cd build/ && npm pack + cd build-es/ && npm pack @@ -1,4 +1,6 @@ -# Async.js +**NOTE: This is the README for Async 2.0, currently under development. For docs for async@1.5.2 go [HERE](https://github.com/caolan/async/blob/v1.5.2/README.md). + +# Async.js v2.0.0-pre [](https://travis-ci.org/caolan/async) [](https://www.npmjs.org/package/async) @@ -32,7 +34,11 @@ async.map(['file1','file2','file3'], fs.stat, function(err, results){ // results is now an array of stats for each file }); -async.filter(['file1','file2','file3'], fs.exists, function(results){ +async.filter(['file1','file2','file3'], function(filePath, callback) { + fs.access(filePath, function(err) { + callback(null, !err) + }); +}, function(err, results){ // results now equals an array of the existing files }); @@ -393,25 +399,26 @@ __Related__ __Alias:__ `select` Returns a new array of all the values in `arr` which pass an async truth test. -_The callback for each `iteratee` call only accepts a single argument of `true` or -`false`; it does not accept an error argument first!_ This is in-line with the -way node libraries work with truth tests like `fs.exists`. This operation is -performed in parallel, but the results array will be in the same order as the -original. +This operation is performed in parallel, +but the results array will be in the same order as the original. __Arguments__ * `arr` - An array to iterate over. * `iteratee(item, callback)` - A truth test to apply to each item in `arr`. - The `iteratee` is passed a `callback(truthValue)`, which must be called with a + The `iteratee` is passed a `callback(err, truthValue)`, which must be called with a boolean argument once it has completed. -* `callback(results)` - *Optional* A callback which is called after all the `iteratee` +* `callback(err, results)` - *Optional* A callback which is called after all the `iteratee` functions have finished. __Example__ ```js -async.filter(['file1','file2','file3'], fs.exists, function(results){ +async.filter(['file1','file2','file3'], function(filePath, callback) { + fs.access(filePath, function(err) { + callback(null, !err) + }); +}, function(err, results){ // results now equals an array of the existing files }); ``` @@ -500,17 +507,21 @@ __Arguments__ * `arr` - An array to iterate over. * `iteratee(item, callback)` - A truth test to apply to each item in `arr`. - The iteratee is passed a `callback(truthValue)` which must be called with a - boolean argument once it has completed. **Note: this callback does not take an error as its first argument.** -* `callback(result)` - *Optional* A callback which is called as soon as any iteratee returns + The iteratee is passed a `callback(err, truthValue)` which must be called with a + boolean argument once it has completed. +* `callback(err, result)` - *Optional* A callback which is called as soon as any iteratee returns `true`, or after all the `iteratee` functions have finished. Result will be the first item in the array that passes the truth test (iteratee) or the - value `undefined` if none passed. **Note: this callback does not take an error as its first argument.** + value `undefined` if none passed. __Example__ ```js -async.detect(['file1','file2','file3'], fs.exists, function(result){ +async.detect(['file1','file2','file3'], function(filePath, callback) { + fs.access(filePath, function(err) { + callback(null, !err) + }); +}, function(err, result){ // result now equals the first file in the list that exists }); ``` @@ -579,10 +590,7 @@ async.sortBy([1,9,3,5], function(x, callback){ __Alias:__ `any` Returns `true` if at least one element in the `arr` satisfies an async test. -_The callback for each iteratee call only accepts a single argument of `true` or -`false`; it does not accept an error argument first!_ This is in-line with the -way node libraries work with truth tests like `fs.exists`. Once any iteratee -call returns `true`, the main `callback` is immediately called. +If any iteratee call returns `true`, the main `callback` is immediately called. __Arguments__ @@ -590,15 +598,18 @@ __Arguments__ * `iteratee(item, callback)` - A truth test to apply to each item in the array in parallel. The iteratee is passed a `callback(truthValue)`` which must be called with a boolean argument once it has completed. -* `callback(result)` - *Optional* A callback which is called as soon as any iteratee returns +* `callback(err, result)` - *Optional* A callback which is called as soon as any iteratee returns `true`, or after all the iteratee functions have finished. Result will be either `true` or `false` depending on the values of the async tests. - **Note: the callbacks do not take an error as their first argument.** __Example__ ```js -async.some(['file1','file2','file3'], fs.exists, function(result){ +async.some(['file1','file2','file3'], function(filePath, callback) { + fs.access(filePath, function(err) { + callback(null, !err) + }); +}, function(err, result){ // if result is true then at least one of the files exists }); ``` @@ -615,26 +626,26 @@ __Related__ __Alias:__ `all` Returns `true` if every element in `arr` satisfies an async test. -_The callback for each `iteratee` call only accepts a single argument of `true` or -`false`; it does not accept an error argument first!_ This is in-line with the -way node libraries work with truth tests like `fs.exists`. +If any iteratee call returns `false`, the main `callback` is immediately called. __Arguments__ * `arr` - An array to iterate over. * `iteratee(item, callback)` - A truth test to apply to each item in the array - in parallel. The iteratee is passed a `callback(truthValue)` which must be + in parallel. The iteratee is passed a `callback(err, truthValue)` which must be called with a boolean argument once it has completed. -* `callback(result)` - *Optional* A callback which is called as soon as any iteratee returns - `false`, or after all the iteratee functions have finished. Result will be - either `true` or `false` depending on the values of the async tests. - - **Note: the callbacks do not take an error as their first argument.** +* `callback(err, result)` - *Optional* A callback which is called after all the `iteratee` + functions have finished. Result will be either `true` or `false` depending on + the values of the async tests. __Example__ ```js -async.every(['file1','file2','file3'], fs.exists, function(result){ +async.every(['file1','file2','file3'], function(filePath, callback) { + fs.access(filePath, function(err) { + callback(null, !err) + }); +}, function(err, result){ // if result is true then every file exists }); ``` @@ -1180,8 +1191,9 @@ methods: the `worker` has finished processing the task. Instead of a single task, a `tasks` array can be submitted. The respective callback is used for every task in the list. * `unshift(task, [callback])` - add a new task to the front of the `queue`. -* `saturated` - a callback that is called when the `queue` length hits the `concurrency` limit, - and further tasks will be queued. +* `saturated` - a callback that is called when the `queue` length hits the `concurrency` limit, and further tasks will be queued. +* `unsaturated` - a callback that is called when the `queue` length is less than the `concurrency` & `buffer` limits, and further tasks will not be queued. +* `buffer` A minimum threshold buffer in order to say that the `queue` is `unsaturated`. * `empty` - a callback that is called when the last item from the `queue` is given to a `worker`. * `drain` - a callback that is called when the last item from the `queue` has returned from the `worker`. * `paused` - a boolean for determining whether the queue is in a paused state @@ -1446,7 +1458,7 @@ __Arguments__ * `opts` - Can be either an object with `times` and `interval` or a number. * `times` - The number of attempts to make before giving up. The default is `5`. * `interval` - The time to wait between retries, in milliseconds. The default is `0`. - * If `opts` is a number, the number specifies the number of times to retry, with the default interval of `0`. + * If `opts` is a number, the number specifies the number of times to retry, with the default interval of `0`. * `task(callback, results)` - A function which receives two arguments: (1) a `callback(err, result)` which must be called when finished, passing `err` (which can be `null`) and the `result` of the function's execution, and (2) a `results` object, containing the results of @@ -1464,14 +1476,14 @@ async.retry(3, apiMethod, function(err, result) { ``` ```js -// try calling apiMethod 3 times, waiting 200 ms between each retry +// try calling apiMethod 3 times, waiting 200 ms between each retry async.retry({times: 3, interval: 200}, apiMethod, function(err, result) { // do something with the result }); ``` ```js -// try calling apiMethod the default 5 times no delay between each retry +// try calling apiMethod the default 5 times no delay between each retry async.retry(apiMethod, function(err, result) { // do something with the result }); @@ -1792,7 +1804,7 @@ async.waterfall([ return db.model.create(contents); }), function (model, next) { - // `model` is the instantiated model object. + // `model` is the instantiated model object. // If there was an error, this function would be skipped. } ], callback) @@ -1,12 +1,12 @@ { "name": "async", "description": "Higher-order functions and common patterns for asynchronous code", - "main": "lib/async.js", + "main": "dist/async.js", "keywords": [ "async", "callback", - "utility", - "module" + "module", + "utility" ], "license": "MIT", "repository": { @@ -14,11 +14,19 @@ "url": "https://github.com/caolan/async.git" }, "devDependencies": { + "babel-cli": "^6.3.17", + "babel-core": "^6.3.26", + "babel-plugin-add-module-exports": "~0.1.2", + "babel-plugin-transform-es2015-modules-commonjs": "^6.3.16", + "babel-preset-es2015": "^6.3.13", + "babelify": "^7.2.0", "benchmark": "bestiejs/benchmark.js", "bluebird": "^2.9.32", "chai": "^3.1.0", "coveralls": "^2.11.2", "es6-promise": "^2.3.0", + "fs-extra": "^0.26.3", + "gulp": "~3.9.0", "jscs": "^1.13.1", "jshint": "~2.8.0", "karma": "^0.13.2", @@ -26,16 +34,19 @@ "karma-firefox-launcher": "^0.1.6", "karma-mocha": "^0.2.0", "karma-mocha-reporter": "^1.0.2", - "lodash": "^3.9.0", - "mkdirp": "~0.5.1", "mocha": "^2.2.5", "native-promise-only": "^0.8.0-a", "nodeunit": ">0.0.0", "nyc": "^2.1.0", + "recursive-readdir": "^1.3.0", + "rimraf": "^2.5.0", + "rollup": "^0.25.0", + "rollup-plugin-npm": "~1.3.0", "rsvp": "^3.0.18", "semver": "^4.3.6", "uglify-js": "~2.4.0", - "xyz": "^0.5.0", + "vinyl-buffer": "~1.0.0", + "vinyl-source-stream": "~1.1.0", "yargs": "~3.9.1" }, "moduleType": [ @@ -52,6 +63,5 @@ ], "authors": [ "Caolan McMahon" - ], - "version": "1.5.2" -} + ] +}
\ No newline at end of file diff --git a/component.json b/component.json index 103558d..2ce99fc 100644 --- a/component.json +++ b/component.json @@ -1,17 +1,17 @@ { "name": "async", "description": "Higher-order functions and common patterns for asynchronous code", - "version": "1.5.2", + "version": "2.0.0-alpha", "keywords": [ "async", "callback", - "utility", - "module" + "module", + "utility" ], "license": "MIT", - "main": "lib/async.js", + "main": "dist/async.js", "repository": "caolan/async", "scripts": [ - "lib/async.js" + "dist/async.js" ] -} +}
\ No newline at end of file diff --git a/dist/async.js b/dist/async.js index 31e7620..0032ce5 100644 --- a/dist/async.js +++ b/dist/async.js @@ -1,1265 +1,2563 @@ -/*! - * async - * https://github.com/caolan/async - * - * Copyright 2010-2014 Caolan McMahon - * Released under the MIT license - */ -(function () { - - var async = {}; - function noop() {} - function identity(v) { - return v; +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (factory((global.async = {}))); +}(this, function (exports) { 'use strict'; + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply$1(func, thisArg, args) { + var length = args.length; + switch (length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); } - function toBool(v) { - return !!v; + return func.apply(thisArg, args); + } + + /** + * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`. + * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); + } + + var funcTag = '[object Function]'; + var genTag = '[object GeneratorFunction]'; + /** Used for built-in method references. */ + var objectProto$4 = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objectToString$2 = objectProto$4.toString; + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 8 which returns 'object' for typed array constructors, and + // PhantomJS 1.9 which returns 'function' for `NodeList` instances. + var tag = isObject(value) ? objectToString$2.call(value) : ''; + return tag == funcTag || tag == genTag; + } + + /** Used as references for various `Number` constants. */ + var NAN = 0 / 0; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Built-in method references without a dependency on `root`. */ + var freeParseInt = parseInt; + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3); + * // => 3 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3'); + * // => 3 + */ + function toNumber(value) { + if (isObject(value)) { + var other = isFunction(value.valueOf) ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; } - function notId(v) { - return !v; + if (typeof value != 'string') { + return value === 0 ? value : +value; } - - // global on the server, window in the browser - var previous_async; - - // Establish the root object, `window` (`self`) in the browser, `global` - // on the server, or `this` in some virtual machines. We use `self` - // instead of `window` for `WebWorker` support. - var root = typeof self === 'object' && self.self === self && self || - typeof global === 'object' && global.global === global && global || - this; - - if (root != null) { - previous_async = root.async; + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + var INFINITY = 1 / 0; + var MAX_INTEGER = 1.7976931348623157e+308; + /** + * Converts `value` to an integer. + * + * **Note:** This function is loosely based on [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3'); + * // => 3 + */ + function toInteger(value) { + if (!value) { + return value === 0 ? value : 0; } - - async.noConflict = function () { - root.async = previous_async; - return async; - }; - - function only_once(fn) { - return function() { - if (fn === null) throw new Error("Callback was already called."); - fn.apply(this, arguments); - fn = null; - }; + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; } - - function _once(fn) { - return function() { - if (fn === null) return; - fn.apply(this, arguments); - fn = null; - }; + var remainder = value % 1; + return value === value ? (remainder ? value - remainder : value) : 0; + } + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeMax = Math.max; + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as an array. + * + * **Note:** This method is based on the [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - //// cross-browser compatiblity functions //// - - var _toString = Object.prototype.toString; - - var _isArray = Array.isArray || function (obj) { - return _toString.call(obj) === '[object Array]'; - }; - - // Ported from underscore.js isObject - var _isObject = function(obj) { - var type = typeof obj; - return type === 'function' || type === 'object' && !!obj; + start = nativeMax(start === undefined ? (func.length - 1) : toInteger(start), 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + switch (start) { + case 0: return func.call(this, array); + case 1: return func.call(this, args[0], array); + case 2: return func.call(this, args[0], args[1], array); + } + var otherArgs = Array(start + 1); + index = -1; + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = array; + return apply$1(func, this, otherArgs); }; - - function _isArrayLike(arr) { - return _isArray(arr) || ( - // has a positive integer length property - typeof arr.length === "number" && - arr.length >= 0 && - arr.length % 1 === 0 - ); + } + + function applyEach$1(eachfn) { + return rest(function (fns, args) { + var go = rest(function (args) { + var that = this; + var callback = args.pop(); + return eachfn(fns, function (fn, _, cb) { + fn.apply(that, args.concat([cb])); + }, callback); + }); + if (args.length) { + return go.apply(this, args); + } else { + return go; + } + }); + } + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT$1 = 'Expected a function'; + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => allows adding up to 4 contacts to the list + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT$1); } - - function _arrayEach(arr, iterator) { - var index = -1, - length = arr.length; - - while (++index < length) { - iterator(arr[index], index, arr); - } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // `initialize` invokes `createApplication` once + */ + function once(func) { + return before(2, func); + } + + /** + * A no-operation function that returns `undefined` regardless of the + * arguments it receives. + * + * @static + * @memberOf _ + * @category Util + * @example + * + * var object = { 'user': 'fred' }; + * + * _.noop(object) === undefined; + * // => true + */ + function noop() { + // No operation performed. + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * Gets the "length" property value of `object`. + * + * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) + * that affects Safari on at least iOS 8.1-8.3 ARM64. + * + * @private + * @param {Object} object The object to query. + * @returns {*} Returns the "length" value. + */ + var getLength = baseProperty('length'); + + /** Used as references for various `Number` constants. */ + var MAX_SAFE_INTEGER$1 = 9007199254740991; + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER$1; + } + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @type Function + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && + !(typeof value == 'function' && isFunction(value)) && isLength(getLength(value)); + } + + /** Used for built-in method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Built-in value references. */ + var getPrototypeOf = Object.getPrototypeOf; + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`, + // that are composed entirely of index properties, return `false` for + // `hasOwnProperty` checks of them. + return hasOwnProperty.call(object, key) || + (typeof object == 'object' && key in object && getPrototypeOf(object) === null); + } + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeKeys = Object.keys; + + /** + * The base implementation of `_.keys` which doesn't skip the constructor + * property of prototypes or treat sparse arrays as dense. + * + * @private + * @type Function + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + return nativeKeys(Object(object)); + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); } - - 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; + return result; + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return !!value && typeof value == 'object'; + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @type Function + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]'; + + /** Used for built-in method references. */ + var objectProto$2 = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty$1 = objectProto$2.hasOwnProperty; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objectToString = objectProto$2.toString; + + /** Built-in value references. */ + var propertyIsEnumerable = objectProto$2.propertyIsEnumerable; + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + function isArguments(value) { + // Safari 8.1 incorrectly makes `arguments.callee` enumerable in strict mode. + return isArrayLikeObject(value) && hasOwnProperty$1.call(value, 'callee') && + (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag); + } + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @type Function + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** `Object#toString` result references. */ + var stringTag = '[object String]'; + + /** Used for built-in method references. */ + var objectProto$3 = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objectToString$1 = objectProto$3.toString; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && objectToString$1.call(value) == stringTag); + } + + /** + * Creates an array of index keys for `object` values of arrays, + * `arguments` objects, and strings, otherwise `null` is returned. + * + * @private + * @param {Object} object The object to query. + * @returns {Array|null} Returns index keys, else `null`. + */ + function indexKeys(object) { + var length = object ? object.length : undefined; + if (isLength(length) && + (isArray(object) || isString(object) || isArguments(object))) { + return baseTimes(length, String); } - - function _range(count) { - return _map(Array(count), function (v, i) { return i; }); + return null; + } + + /** Used as references for various `Number` constants. */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1; + length = length == null ? MAX_SAFE_INTEGER : length; + return value > -1 && value % 1 == 0 && value < length; + } + + /** Used for built-in method references. */ + var objectProto$1 = Object.prototype; + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto$1; + + return value === proto; + } + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) + * for more details. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + var isProto = isPrototype(object); + if (!(isProto || isArrayLike(object))) { + return baseKeys(object); } - - function _reduce(arr, iterator, memo) { - _arrayEach(arr, function (x, i, a) { - memo = iterator(memo, x, i, a); - }); - return memo; + var indexes = indexKeys(object), + skipIndexes = !!indexes, + result = indexes || [], + length = result.length; + + for (var key in object) { + if (baseHas(object, key) && + !(skipIndexes && (key == 'length' || isIndex(key, length))) && + !(isProto && key == 'constructor')) { + result.push(key); + } } - - function _forEachOf(object, iterator) { - _arrayEach(_keys(object), function (key) { - iterator(object[key], key); - }); + return result; + } + + function keyIterator(coll) { + var i = -1; + var len; + if (isArrayLike(coll)) { + len = coll.length; + return function next() { + i++; + return i < len ? i : null; + }; + } else { + var okeys = keys(coll); + len = okeys.length; + return function next() { + i++; + return i < len ? okeys[i] : null; + }; + } + } + + function onlyOnce(fn) { + return function () { + if (fn === null) throw new Error("Callback was already called."); + fn.apply(this, arguments); + fn = null; + }; + } + + function eachOf(object, iterator, callback) { + callback = once(callback || noop); + object = object || []; + + var iter = keyIterator(object); + var key, + completed = 0; + + while ((key = iter()) != null) { + completed += 1; + iterator(object[key], key, onlyOnce(done)); + } + + if (completed === 0) callback(null); + + function done(err) { + completed--; + if (err) { + callback(err); + } + // Check key is null in case iterator isn't exhausted + // and done resolved synchronously. + else if (key === null && completed <= 0) { + callback(null); + } + } + } + + var applyEach = applyEach$1(eachOf); + + var _setImmediate = typeof setImmediate === 'function' && setImmediate; + + var _delay; + if (_setImmediate) { + _delay = function (fn) { + // not a direct alias for IE10 compatibility + _setImmediate(fn); + }; + } else if (typeof process === 'object' && typeof process.nextTick === 'function') { + _delay = process.nextTick; + } else { + _delay = function (fn) { + setTimeout(fn, 0); + }; + } + + var setImmediate$1 = _delay; + + function eachOfSeries(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, onlyOnce(function (err) { + if (err) { + callback(err); + } else { + key = nextKey(); + if (key === null) { + return callback(null); + } else { + if (sync) { + setImmediate$1(iterate); + } else { + iterate(); + } + } + } + })); + sync = false; + } + iterate(); + } + + var applyEachSeries = applyEach$1(eachOfSeries); + + var apply = rest(function (fn, args) { + return rest(function (callArgs) { + return fn.apply(null, args.concat(callArgs)); + }); + }); + + function asyncify(func) { + return rest(function (args) { + var callback = args.pop(); + var result; + try { + result = func.apply(this, args); + } catch (e) { + return callback(e); + } + // if result is Promise object + if (isObject(result) && typeof result.then === 'function') { + result.then(function (value) { + callback(null, value); + })['catch'](function (err) { + callback(err.message ? err : new Error(err)); + }); + } else { + callback(null, result); + } + }); + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } } - - function _indexOf(arr, item) { - for (var i = 0; i < arr.length; i++) { - if (arr[i] === item) return i; - } - return -1; + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } } - - var _keys = Object.keys || function (obj) { - var keys = []; - for (var k in obj) { - if (obj.hasOwnProperty(k)) { - keys.push(k); - } + return true; + } + + /** + * Creates a base function for methods like `_.forIn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; } - return keys; + } + return object; }; - - 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; - }; - } + } + + /** + * The base implementation of `baseForIn` and `baseForOwn` which iterates + * over `object` properties returned by `keysFunc` invoking `iteratee` for + * each property. Iteratee functions may exit iteration early by explicitly + * returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * This method returns the first argument given to it. + * + * @static + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'user': 'fred' }; + * + * _.identity(object) === object; + * // => true + */ + function identity(value) { + return value; + } + + /** + * Converts `value` to a function if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Function} Returns the function. + */ + function toFunction(value) { + return typeof value == 'function' ? value : identity; + } + + /** + * Iterates over own enumerable properties of an object invoking `iteratee` + * for each property. The iteratee is invoked with three arguments: + * (value, key, object). Iteratee functions may exit iteration early by + * explicitly returning `false`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Object} Returns `object`. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.forOwn(new Foo, function(value, key) { + * console.log(key); + * }); + * // => logs 'a' then 'b' (iteration order is not guaranteed) + */ + function forOwn(object, iteratee) { + return object && baseForOwn(object, toFunction(iteratee)); + } + + /** + * Gets the index at which the first occurrence of `NaN` is found in `array`. + * + * @private + * @param {Array} array The array to search. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched `NaN`, else `-1`. + */ + function indexOfNaN(array, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 0 : -1); + + while ((fromRight ? index-- : ++index < length)) { + var other = array[index]; + if (other !== other) { + return index; + } } - - // Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html) - // This accumulates the arguments passed into an array, after a given index. - // From underscore.js (https://github.com/jashkenas/underscore/pull/2140). - function _restParam(func, startIndex) { - startIndex = startIndex == null ? func.length - 1 : +startIndex; - return function() { - var length = Math.max(arguments.length - startIndex, 0); - var rest = Array(length); - for (var index = 0; index < length; index++) { - rest[index] = arguments[index + startIndex]; - } - switch (startIndex) { - case 0: return func.call(this, rest); - case 1: return func.call(this, arguments[0], rest); - } - // Currently unused but handle cases outside of the switch statement: - // var args = Array(startIndex + 1); - // for (index = 0; index < startIndex; index++) { - // args[index] = arguments[index]; - // } - // args[startIndex] = rest; - // return func.apply(this, args); - }; + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + if (value !== value) { + return indexOfNaN(array, fromIndex); } + var index = fromIndex - 1, + length = array.length; - function _withoutIndex(iterator) { - return function (value, index, callback) { - return iterator(value, callback); - }; + while (++index < length) { + if (array[index] === value) { + return index; + } } - - //// exported async module functions //// - - //// nextTick implementation with browser-compatible fallback //// - - // capture the global reference to guard against fakeTimer mocks - var _setImmediate = typeof setImmediate === 'function' && setImmediate; - - var _delay = _setImmediate ? function(fn) { - // not a direct alias for IE10 compatibility - _setImmediate(fn); - } : function(fn) { - setTimeout(fn, 0); - }; - - if (typeof process === 'object' && typeof process.nextTick === 'function') { - async.nextTick = process.nextTick; - } else { - async.nextTick = _delay; + return -1; + } + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeMax$1 = Math.max; + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the offset + * from the end of `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array ? array.length : 0; + if (!length) { + return -1; } - async.setImmediate = _setImmediate ? _delay : 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 iter = _keyIterator(object); - var key, completed = 0; - - while ((key = iter()) != null) { - completed += 1; - iterator(object[key], key, only_once(done)); - } - - if (completed === 0) callback(null); - - function done(err) { - completed--; - if (err) { - callback(err); - } - // Check key is null in case iterator isn't exhausted - // and done resolved synchronously. - else if (key === null && completed <= 0) { - 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.setImmediate(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); - }; + fromIndex = toInteger(fromIndex); + if (fromIndex < 0) { + fromIndex = nativeMax$1(length + fromIndex, 0); } - function doParallelLimit(fn) { - return function (obj, limit, iterator, callback) { - return fn(_eachOfLimit(limit), obj, iterator, callback); - }; + return baseIndexOf(array, value, fromIndex); + } + + function auto (tasks, concurrency, callback) { + if (typeof arguments[1] === 'function') { + // concurrency is optional, shift the args. + callback = concurrency; + concurrency = null; + } + callback = once(callback || noop); + var keys$$ = keys(tasks); + var remainingTasks = keys$$.length; + if (!remainingTasks) { + return callback(null); + } + if (!concurrency) { + concurrency = remainingTasks; + } + + var results = {}; + var runningTasks = 0; + var hasError = false; + + var listeners = []; + function addListener(fn) { + listeners.unshift(fn); + } + function removeListener(fn) { + var idx = indexOf(listeners, fn); + if (idx >= 0) listeners.splice(idx, 1); + } + function taskComplete() { + remainingTasks--; + arrayEach(listeners.slice(), function (fn) { + fn(); + }); + } + + addListener(function () { + if (!remainingTasks) { + callback(null, results); + } + }); + + arrayEach(keys$$, function (k) { + if (hasError) return; + var task = isArray(tasks[k]) ? tasks[k] : [tasks[k]]; + var taskCallback = rest(function (err, args) { + runningTasks--; + if (args.length <= 1) { + args = args[0]; + } + if (err) { + var safeResults = {}; + forOwn(results, function (val, rkey) { + safeResults[rkey] = val; + }); + safeResults[k] = args; + hasError = true; + + callback(err, safeResults); + } else { + results[k] = args; + setImmediate$1(taskComplete); + } + }); + var requires = task.slice(0, task.length - 1); + // prevent dead-locks + var len = requires.length; + var dep; + while (len--) { + if (!(dep = tasks[requires[len]])) { + throw new Error('Has non-existent dependency in ' + requires.join(', ')); + } + if (isArray(dep) && indexOf(dep, k) >= 0) { + throw new Error('Has cyclic dependencies'); + } + } + function ready() { + return runningTasks < concurrency && !baseHas(results, k) && arrayEvery(requires, function (x) { + return baseHas(results, x); + }); + } + if (ready()) { + runningTasks++; + task[task.length - 1](taskCallback, results); + } else { + addListener(listener); + } + function listener() { + if (ready()) { + runningTasks++; + removeListener(listener); + task[task.length - 1](taskCallback, results); + } + } + }); + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); } - function doSeries(fn) { - return function (obj, iterator, callback) { - return fn(async.eachOfSeries, obj, iterator, callback); - }; + return result; + } + + function queue$1(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 setImmediate$1(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(); + } + }); + setImmediate$1(q.process); + } + function _next(q, tasks) { + return function () { + workers -= 1; + + var removed = false; + var args = arguments; + arrayEach(tasks, function (task) { + arrayEach(workersList, function (worker, index) { + if (worker === task && !removed) { + workersList.splice(index, 1); + removed = true; + } + }); + + task.callback.apply(task, args); + }); + if (q.tasks.length + workers === 0) { + q.drain(); + } + q.process(); + }; + } + + var workers = 0; + var workersList = []; + var q = { + tasks: [], + concurrency: concurrency, + payload: payload, + 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 () { + while (!q.paused && workers < q.concurrency && q.tasks.length) { + + var tasks = q.payload ? q.tasks.splice(0, q.payload) : q.tasks.splice(0, q.tasks.length); + + var data = arrayMap(tasks, baseProperty('data')); + + if (q.tasks.length === 0) { + q.empty(); + } + workers += 1; + workersList.push(tasks[0]); + var cb = onlyOnce(_next(q, tasks)); + worker(data, cb); + } + }, + length: function () { + return q.tasks.length; + }, + running: function () { + return workers; + }, + workersList: function () { + return workersList; + }, + 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++) { + setImmediate$1(q.process); + } + } + }; + return q; + } + + function cargo(worker, payload) { + return queue$1(worker, 1, payload); + } + + function reduce(arr, memo, iterator, cb) { + eachOfSeries(arr, function (x, i, cb) { + iterator(memo, x, function (err, v) { + memo = v; + cb(err); + }); + }, function (err) { + cb(err, memo); + }); + } + + function seq() /* functions... */{ + var fns = arguments; + return rest(function (args) { + var that = this; + + var cb = args[args.length - 1]; + if (typeof cb == 'function') { + args.pop(); + } else { + cb = noop; + } + + reduce(fns, args, function (newargs, fn, cb) { + fn.apply(that, newargs.concat([rest(function (err, nextargs) { + cb(err, nextargs); + })])); + }, function (err, results) { + cb.apply(that, [err].concat(results)); + }); + }); + } + + var reverse = Array.prototype.reverse; + + function compose() /* functions... */{ + return seq.apply(null, reverse.call(arguments)); + } + + function concat$1(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); + }); + } + + function doParallel(fn) { + return function (obj, iterator, callback) { + return fn(eachOf, obj, iterator, callback); + }; + } + + var concat = doParallel(concat$1); + + function doSeries(fn) { + return function (obj, iterator, callback) { + return fn(eachOfSeries, obj, iterator, callback); + }; + } + + var concatSeries = doSeries(concat$1); + + var constant = rest(function (values) { + var args = [null].concat(values); + return function (cb) { + return cb.apply(this, args); + }; + }); + + function _createTester(eachfn, check, getResult) { + return function (arr, limit, iterator, cb) { + function done(err) { + if (cb) { + if (err) { + cb(err); + } else { + cb(null, getResult(false, void 0)); + } + } + } + function iteratee(x, _, callback) { + if (!cb) return callback(); + iterator(x, function (err, v) { + if (cb) { + if (err) { + cb(err); + cb = iterator = false; + } else if (check(v)) { + cb(null, getResult(true, x)); + cb = iterator = false; + } + } + callback(); + }); + } + if (arguments.length > 3) { + eachfn(arr, limit, iteratee, done); + } else { + cb = iterator; + iterator = limit; + eachfn(arr, iteratee, done); + } + }; + } + + function _findGetResult(v, x) { + return x; + } + + var detect = _createTester(eachOf, identity, _findGetResult); + + 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, onlyOnce(function (err) { + running -= 1; + if (err) { + callback(err); + errored = true; + } else { + replenish(); + } + })); + } + })(); + }; + } + + function eachOfLimit(obj, limit, iterator, cb) { + _eachOfLimit(limit)(obj, iterator, cb); + } + + var detectLimit = _createTester(eachOfLimit, identity, _findGetResult); + + var detectSeries = _createTester(eachOfSeries, identity, _findGetResult); + + function consoleFunc(name) { + return rest(function (fn, args) { + fn.apply(null, args.concat([rest(function (err, args) { + if (typeof console === 'object') { + if (err) { + if (console.error) { + console.error(err); + } + } else if (console[name]) { + arrayEach(args, function (x) { + console[name](x); + }); + } + } + })])); + }); + } + + var dir = consoleFunc('dir'); + + function during(test, iterator, cb) { + cb = cb || noop; + + var next = rest(function (err, args) { + if (err) { + cb(err); + } else { + args.push(check); + test.apply(this, args); + } + }); + + var check = function (err, truth) { + if (err) return cb(err); + if (!truth) return cb(null); + iterator(next); + }; + + test(check); + } + + function doDuring(iterator, test, cb) { + var calls = 0; + + during(function (next) { + if (calls++ < 1) return next(null, true); + test.apply(this, arguments); + }, iterator, cb); + } + + function whilst(test, iterator, cb) { + cb = cb || noop; + if (!test()) return cb(null); + var next = rest(function (err, args) { + if (err) return cb(err); + if (test.apply(this, args)) return iterator(next); + cb.apply(null, [null].concat(args)); + }); + iterator(next); + } + + function doWhilst(iterator, test, cb) { + var calls = 0; + return whilst(function () { + return ++calls <= 1 || test.apply(this, arguments); + }, iterator, cb); + } + + function doUntil(iterator, test, cb) { + return doWhilst(iterator, function () { + return !test.apply(this, arguments); + }, cb); + } + + function _withoutIndex(iterator) { + return function (value, index, callback) { + return iterator(value, callback); + }; + } + + function each(arr, iterator, cb) { + return eachOf(arr, _withoutIndex(iterator), cb); + } + + function eachLimit(arr, limit, iterator, cb) { + return _eachOfLimit(limit)(arr, _withoutIndex(iterator), cb); + } + + function eachSeries(arr, iterator, cb) { + return eachOfSeries(arr, _withoutIndex(iterator), cb); + } + + function ensureAsync(fn) { + return rest(function (args) { + var callback = args.pop(); + var sync = true; + args.push(function () { + var innerArgs = arguments; + if (sync) { + setImmediate$1(function () { + callback.apply(null, innerArgs); + }); + } else { + callback.apply(null, innerArgs); + } + }); + fn.apply(this, args); + sync = false; + }); + } + + function notId(v) { + return !v; + } + + var every = _createTester(eachOf, notId, notId); + + var everyLimit = _createTester(eachOfLimit, notId, notId); + + function _filter(eachfn, arr, iterator, callback) { + var results = []; + eachfn(arr, function (x, index, callback) { + iterator(x, function (err, v) { + if (err) { + callback(err); + } else { + if (v) { + results.push({ index: index, value: x }); + } + callback(); + } + }); + }, function (err) { + if (err) { + callback(err); + } else { + callback(null, arrayMap(results.sort(function (a, b) { + return a.index - b.index; + }), baseProperty('value'))); + } + }); + } + + var filter = doParallel(_filter); + + function doParallelLimit(fn) { + return function (obj, limit, iterator, callback) { + return fn(_eachOfLimit(limit), obj, iterator, callback); + }; + } + + var filterLimit = doParallelLimit(_filter); + + var filterSeries = doSeries(_filter); + + function forever(fn, cb) { + var done = onlyOnce(cb || noop); + var task = ensureAsync(fn); + + function next(err) { + if (err) return done(err); + task(next); + } + next(); + } + + function iterator (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); + } + + var log = consoleFunc('log'); + + function _asyncMap(eachfn, arr, iterator, callback) { + callback = once(callback || noop); + arr = arr || []; + var results = isArrayLike(arr) ? [] : {}; + eachfn(arr, function (value, index, callback) { + iterator(value, function (err, v) { + results[index] = v; + callback(err); + }); + }, function (err) { + callback(err, results); + }); + } + + var map = doParallel(_asyncMap); + + var mapLimit = doParallelLimit(_asyncMap); + + var mapSeries = doSeries(_asyncMap); + + /** + * Checks if `value` is a global object. + * + * @private + * @param {*} value The value to check. + * @returns {null|Object} Returns `value` if it's a global object, else `null`. + */ + function checkGlobal(value) { + return (value && value.Object === Object) ? value : null; + } + + /** Used to determine if values are of the language type `Object`. */ + var objectTypes = { + 'function': true, + 'object': true + }; + + /** Detect free variable `exports`. */ + var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType) ? exports : null; + + /** Detect free variable `module`. */ + var freeModule = (objectTypes[typeof module] && module && !module.nodeType) ? module : null; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = checkGlobal(freeExports && freeModule && typeof global == 'object' && global); + + /** Detect free variable `self`. */ + var freeSelf = checkGlobal(objectTypes[typeof self] && self); + + /** Detect free variable `window`. */ + var freeWindow = checkGlobal(objectTypes[typeof window] && window); + + /** Detect `this` as the global object. */ + var thisGlobal = checkGlobal(objectTypes[typeof this] && this); + + /** + * Used as a reference to the global object. + * + * The `this` value is used if it's the global object to avoid Greasemonkey's + * restricted `window` object, otherwise the `window` object is used. + */ + var root = freeGlobal || ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) || freeSelf || thisGlobal || Function('return this')(); + + /** Built-in value references. */ + var Symbol = root.Symbol; + + /** `Object#toString` result references. */ + var symbolTag = '[object Symbol]'; + + /** Used for built-in method references. */ + var objectProto$5 = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objectToString$3 = objectProto$5.toString; + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && objectToString$3.call(value) == symbolTag); + } + + /** Used as references for various `Number` constants. */ + var INFINITY$1 = 1 / 0; + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined; + var symbolToString = Symbol ? symbolProto.toString : undefined; + /** + * Converts `value` to a string if it's not one. An empty string is returned + * for `null` and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to process. + * @returns {string} Returns the string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; } - - function _asyncMap(eachfn, arr, iterator, callback) { - callback = _once(callback || noop); - arr = arr || []; - var results = _isArrayLike(arr) ? [] : {}; - eachfn(arr, function (value, index, callback) { - iterator(value, function (err, v) { - results[index] = v; - callback(err); - }); - }, function (err) { - callback(err, results); - }); + if (value == null) { + return ''; } - - async.map = doParallel(_asyncMap); - async.mapSeries = doSeries(_asyncMap); - async.mapLimit = doParallelLimit(_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, memo); - }); - }; - - async.foldr = - async.reduceRight = function (arr, memo, iterator, callback) { - var reversed = _map(arr, identity).reverse(); - async.reduce(reversed, memo, iterator, callback); - }; - - async.transform = function (arr, memo, iterator, callback) { - if (arguments.length === 3) { - callback = iterator; - iterator = memo; - memo = _isArray(arr) ? [] : {}; - } - - async.eachOf(arr, function(v, k, cb) { - iterator(memo, v, k, cb); - }, function(err) { - callback(err, memo); - }); - }; - - function _filter(eachfn, arr, iterator, callback) { - var results = []; - eachfn(arr, function (x, index, callback) { - iterator(x, function (v) { - if (v) { - results.push({index: index, value: 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.selectLimit = - async.filterLimit = doParallelLimit(_filter); - - async.selectSeries = - async.filterSeries = doSeries(_filter); - - function _reject(eachfn, arr, iterator, callback) { - _filter(eachfn, arr, function(value, cb) { - iterator(value, function(v) { - cb(!v); - }); - }, callback); - } - async.reject = doParallel(_reject); - async.rejectLimit = doParallelLimit(_reject); - async.rejectSeries = doSeries(_reject); - - function _createTester(eachfn, check, getResult) { - return function(arr, limit, iterator, cb) { - function done() { - if (cb) cb(getResult(false, void 0)); - } - function iteratee(x, _, callback) { - if (!cb) return callback(); - iterator(x, function (v) { - if (cb && check(v)) { - cb(getResult(true, x)); - cb = iterator = false; - } - callback(); - }); - } - if (arguments.length > 3) { - eachfn(arr, limit, iteratee, done); - } else { - cb = iterator; - iterator = limit; - eachfn(arr, iteratee, done); - } - }; - } - - async.any = - async.some = _createTester(async.eachOf, toBool, identity); - - async.someLimit = _createTester(async.eachOfLimit, toBool, identity); - - async.all = - async.every = _createTester(async.eachOf, notId, notId); - - async.everyLimit = _createTester(async.eachOfLimit, notId, notId); - - function _findGetResult(v, x) { - return x; - } - async.detect = _createTester(async.eachOf, identity, _findGetResult); - async.detectSeries = _createTester(async.eachOfSeries, identity, _findGetResult); - async.detectLimit = _createTester(async.eachOfLimit, identity, _findGetResult); - - 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, concurrency, callback) { - if (typeof arguments[1] === 'function') { - // concurrency is optional, shift the args. - callback = concurrency; - concurrency = null; - } - callback = _once(callback || noop); - var keys = _keys(tasks); - var remainingTasks = keys.length; - if (!remainingTasks) { - return callback(null); - } - if (!concurrency) { - concurrency = remainingTasks; - } - - var results = {}; - var runningTasks = 0; - - var hasError = false; - - var listeners = []; - function addListener(fn) { - listeners.unshift(fn); - } - function removeListener(fn) { - var idx = _indexOf(listeners, fn); - if (idx >= 0) listeners.splice(idx, 1); - } - function taskComplete() { - remainingTasks--; - _arrayEach(listeners.slice(0), function (fn) { - fn(); - }); - } - - addListener(function () { - if (!remainingTasks) { - callback(null, results); - } - }); - - _arrayEach(keys, function (k) { - if (hasError) return; - var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]]; - var taskCallback = _restParam(function(err, args) { - runningTasks--; - if (args.length <= 1) { - args = args[0]; - } - if (err) { - var safeResults = {}; - _forEachOf(results, function(val, rkey) { - safeResults[rkey] = val; - }); - safeResults[k] = args; - hasError = true; - - callback(err, safeResults); - } - else { - results[k] = args; - async.setImmediate(taskComplete); - } - }); - var requires = task.slice(0, task.length - 1); - // prevent dead-locks - var len = requires.length; - var dep; - while (len--) { - if (!(dep = tasks[requires[len]])) { - throw new Error('Has nonexistent dependency in ' + requires.join(', ')); - } - if (_isArray(dep) && _indexOf(dep, k) >= 0) { - throw new Error('Has cyclic dependencies'); - } - } - function ready() { - return runningTasks < concurrency && _reduce(requires, function (a, x) { - return (a && results.hasOwnProperty(x)); - }, true) && !results.hasOwnProperty(k); - } - if (ready()) { - runningTasks++; - task[task.length - 1](taskCallback, results); - } - else { - addListener(listener); - } - function listener() { - if (ready()) { - runningTasks++; - removeListener(listener); - task[task.length - 1](taskCallback, results); - } - } - }); - }; - - - - async.retry = function(times, task, callback) { - var DEFAULT_TIMES = 5; - var DEFAULT_INTERVAL = 0; - - var attempts = []; - - var opts = { - times: DEFAULT_TIMES, - interval: DEFAULT_INTERVAL - }; - - function parseTimes(acc, t){ - if(typeof t === 'number'){ - acc.times = parseInt(t, 10) || DEFAULT_TIMES; - } else if(typeof t === 'object'){ - acc.times = parseInt(t.times, 10) || DEFAULT_TIMES; - acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL; - } else { - throw new Error('Unsupported argument type for \'times\': ' + typeof t); - } - } - - var length = arguments.length; - if (length < 1 || length > 3) { - throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)'); - } else if (length <= 2 && typeof times === 'function') { - callback = task; - task = times; - } - if (typeof times !== 'function') { - parseTimes(opts, times); - } - opts.callback = callback; - opts.task = task; - - function wrappedTask(wrappedCallback, wrappedResults) { - function retryAttempt(task, finalAttempt) { - return function(seriesCallback) { - task(function(err, result){ - seriesCallback(!err || finalAttempt, {err: err, result: result}); - }, wrappedResults); - }; - } - - function retryInterval(interval){ - return function(seriesCallback){ - setTimeout(function(){ - seriesCallback(null); - }, interval); - }; - } - - while (opts.times) { - - var finalAttempt = !(opts.times-=1); - attempts.push(retryAttempt(opts.task, finalAttempt)); - if(!finalAttempt && opts.interval > 0){ - attempts.push(retryInterval(opts.interval)); - } - } - - async.series(attempts, function(done, data){ - data = data[data.length - 1]; - (wrappedCallback || opts.callback)(data.err, data.result); - }); - } - - // If a callback is passed, run this as a controll flow - return opts.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 _restParam(function (err, args) { - if (err) { - callback.apply(null, [err].concat(args)); - } - else { - 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(_restParam(function (err, args) { - if (args.length <= 1) { - args = args[0]; - } - results[key] = args; - callback(err); - })); - }, function (err) { - callback(err, results); - }); + if (isSymbol(value)) { + return Symbol ? symbolToString.call(value) : ''; } - - 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) { - _parallel(async.eachOfSeries, tasks, callback); - }; - - 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 = _restParam(function (fn, args) { - return _restParam(function (callArgs) { - return fn.apply( - null, args.concat(callArgs) - ); - }); + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY$1) ? '-0' : result; + } + + /** Used to match property names within property paths. */ + var rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]/g; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + function stringToPath(string) { + var result = []; + toString(string).replace(rePropName, function(match, number, quote, string) { + result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match)); }); - - 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); - }); + return result; + } + + /** + * The base implementation of `_.toPath` which only converts `value` to a + * path if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Array} Returns the property path array. + */ + function baseToPath(value) { + return isArray(value) ? value : stringToPath(value); + } + + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/; + var reIsPlainProp = /^\w*$/; + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (typeof value == 'number') { + return true; } - async.concat = doParallel(_concat); - async.concatSeries = doSeries(_concat); - - async.whilst = function (test, iterator, callback) { - callback = callback || noop; - if (test()) { - var next = _restParam(function(err, args) { - if (err) { - callback(err); - } else if (test.apply(this, args)) { - iterator(next); - } else { - callback.apply(null, [null].concat(args)); - } - }); - iterator(next); - } else { - callback(null); - } - }; - - async.doWhilst = function (iterator, test, callback) { - var calls = 0; - return async.whilst(function() { - return ++calls <= 1 || test.apply(this, arguments); - }, iterator, callback); - }; - - async.until = function (test, iterator, callback) { - return async.whilst(function() { - return !test.apply(this, arguments); - }, iterator, callback); - }; - - async.doUntil = function (iterator, test, callback) { - return async.doWhilst(iterator, function() { - return !test.apply(this, arguments); - }, callback); - }; - - async.during = function (test, iterator, callback) { - callback = callback || noop; - - var next = _restParam(function(err, args) { - if (err) { - callback(err); - } else { - args.push(check); - test.apply(this, args); - } - }); - - var check = function(err, truth) { - if (err) { - callback(err); - } else if (truth) { - iterator(next); - } else { - callback(null); - } - }; - - test(check); - }; - - async.doDuring = function (iterator, test, callback) { - var calls = 0; - async.during(function(next) { - if (calls++ < 1) { - next(null, true); - } else { - test.apply(this, arguments); - } - }, iterator, callback); - }; - - 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 removed = false; - var args = arguments; - _arrayEach(tasks, function (task) { - _arrayEach(workersList, function (worker, index) { - if (worker === task && !removed) { - workersList.splice(index, 1); - removed = true; - } - }); - - task.callback.apply(task, args); - }); - if (q.tasks.length + workers === 0) { - q.drain(); - } - q.process(); - }; - } - - var workers = 0; - var workersList = []; - var q = { - tasks: [], - concurrency: concurrency, - payload: payload, - 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 () { - while(!q.paused && workers < q.concurrency && q.tasks.length){ - - var tasks = q.payload ? - q.tasks.splice(0, q.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; - workersList.push(tasks[0]); - var cb = only_once(_next(q, tasks)); - worker(data, cb); - } - }, - length: function () { - return q.tasks.length; - }, - running: function () { - return workers; - }, - workersList: function () { - return workersList; - }, - 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; + return !isArray(value) && + (reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object))); + } + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array ? array.length : 0; + return length ? array[length - 1] : undefined; + } + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); } - - 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 _restParam(function (fn, args) { - fn.apply(null, args.concat([_restParam(function (err, args) { - if (typeof console === 'object') { - if (err) { - if (console.error) { - console.error(err); - } - } - else if (console[name]) { - _arrayEach(args, function (x) { - console[name](x); - }); - } - } - })])); - }); + end = end > length ? length : end; + if (end < 0) { + end += length; } - 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 = {}; - var has = Object.prototype.hasOwnProperty; - hasher = hasher || identity; - var memoized = _restParam(function memoized(args) { - var callback = args.pop(); - var key = hasher.apply(null, args); - if (has.call(memo, key)) { - async.setImmediate(function () { - callback.apply(null, memo[key]); - }); - } - else if (has.call(queues, key)) { - queues[key].push(callback); - } - else { - queues[key] = [callback]; - fn.apply(null, args.concat([_restParam(function (args) { - memo[key] = args; - var q = queues[key]; - delete queues[key]; - for (var i = 0, l = q.length; i < l; i++) { - q[i].apply(null, args); - } - })])); - } - }); - memoized.memo = memo; - memoized.unmemoized = fn; - return memoized; - }; + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; - 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); - }; + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; } - - 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 _restParam(function (args) { - var that = this; - - var callback = args[args.length - 1]; - if (typeof callback == 'function') { - args.pop(); - } else { - callback = noop; - } - - async.reduce(fns, args, function (newargs, fn, cb) { - fn.apply(that, newargs.concat([_restParam(function (err, nextargs) { - 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) { - return _restParam(function(fns, args) { - var go = _restParam(function(args) { - var that = this; - var callback = args.pop(); - return eachfn(fns, function (fn, _, cb) { - fn.apply(that, args.concat([cb])); - }, - callback); - }); - if (args.length) { - return go.apply(this, args); - } - else { - return go; - } - }); + return result; + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = isKey(path, object) ? [path + ''] : baseToPath(path); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[path[index++]]; } - - async.applyEach = _applyEach(async.eachOf); - async.applyEachSeries = _applyEach(async.eachOfSeries); - - - 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 _restParam(function (args) { - 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; - }); + return (index && index == length) ? object : undefined; + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined` the `defaultValue` is used in its place. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned if the resolved value is `undefined`. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length == 1 ? object : get(object, baseSlice(path, 0, -1)); + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + if (object == null) { + return false; } - - async.ensureAsync = ensureAsync; - - async.constant = _restParam(function(values) { - var args = [null].concat(values); - return function (callback) { - return callback.apply(this, args); - }; - }); - - async.wrapSync = - async.asyncify = function asyncify(func) { - return _restParam(function (args) { - var callback = args.pop(); - var result; - try { - result = func.apply(this, args); - } catch (e) { - return callback(e); - } - // if result is Promise object - if (_isObject(result) && typeof result.then === "function") { - result.then(function(value) { - callback(null, value); - })["catch"](function(err) { - callback(err.message ? err : new Error(err)); - }); - } else { - callback(null, result); - } - }); - }; - - // Node.js - if (typeof module === 'object' && module.exports) { - module.exports = async; + var result = hasFunc(object, path); + if (!result && !isKey(path)) { + path = baseToPath(path); + object = parent(object, path); + if (object != null) { + path = last(path); + result = hasFunc(object, path); + } } - // AMD / RequireJS - else if (typeof define === 'function' && define.amd) { - define([], function () { - return async; - }); + var length = object ? object.length : undefined; + return result || ( + !!length && isLength(length) && isIndex(path, length) && + (isArray(object) || isString(object) || isArguments(object)) + ); + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': { 'c': 3 } } }; + * var other = _.create({ 'a': _.create({ 'b': _.create({ 'c': 3 }) }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b.c'); + * // => true + * + * _.has(object, ['a', 'b', 'c']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return hasPath(object, path, baseHas); + } + + function memoize(fn, hasher) { + var memo = Object.create(null); + var queues = Object.create(null); + hasher = hasher || identity; + var memoized = rest(function memoized(args) { + var callback = args.pop(); + var key = hasher.apply(null, args); + if (has(memo, key)) { + setImmediate$1(function () { + callback.apply(null, memo[key]); + }); + } else if (has(queues, key)) { + queues[key].push(callback); + } else { + queues[key] = [callback]; + fn.apply(null, args.concat([rest(function (args) { + memo[key] = args; + var q = queues[key]; + delete queues[key]; + for (var i = 0, l = q.length; i < l; i++) { + q[i].apply(null, args); + } + })])); + } + }); + memoized.memo = memo; + memoized.unmemoized = fn; + return memoized; + } + + var nexTick = typeof process === 'object' && typeof process.nextTick === 'function' ? process.nextTick : setImmediate$1; + + function _parallel(eachfn, tasks, callback) { + callback = callback || noop; + var results = isArrayLike(tasks) ? [] : {}; + + eachfn(tasks, function (task, key, callback) { + task(rest(function (err, args) { + if (args.length <= 1) { + args = args[0]; + } + results[key] = args; + callback(err); + })); + }, function (err) { + callback(err, results); + }); + } + + function parallel(tasks, cb) { + return _parallel(eachOf, tasks, cb); + } + + function parallelLimit(tasks, limit, cb) { + return _parallel(_eachOfLimit(limit), tasks, cb); + } + + function queue (worker, concurrency) { + return queue$1(function (items, cb) { + worker(items[0], cb); + }, concurrency, 1); + } + + function priorityQueue (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 setImmediate$1(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(); + } + setImmediate$1(q.process); + }); + } + + // Start with a normal queue + var q = 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; + } + + var slice = Array.prototype.slice; + + function reduceRight(arr, memo, iterator, cb) { + var reversed = slice.call(arr).reverse(); + reduce(reversed, memo, iterator, cb); + } + + function reject$1(eachfn, arr, iterator, callback) { + _filter(eachfn, arr, function (value, cb) { + iterator(value, function (err, v) { + if (err) { + cb(err); + } else { + cb(null, !v); + } + }); + }, callback); + } + + var reject = doParallel(reject$1); + + var rejectLimit = doParallelLimit(reject$1); + + var rejectSeries = doSeries(reject$1); + + function series(tasks, cb) { + return _parallel(eachOfSeries, tasks, cb); + } + + function retry(times, task, callback) { + var DEFAULT_TIMES = 5; + var DEFAULT_INTERVAL = 0; + + var attempts = []; + + var opts = { + times: DEFAULT_TIMES, + interval: DEFAULT_INTERVAL + }; + + function parseTimes(acc, t) { + if (typeof t === 'number') { + acc.times = parseInt(t, 10) || DEFAULT_TIMES; + } else if (typeof t === 'object') { + acc.times = parseInt(t.times, 10) || DEFAULT_TIMES; + acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL; + } else { + throw new Error('Unsupported argument type for \'times\': ' + typeof t); + } + } + + var length = arguments.length; + if (length < 1 || length > 3) { + throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)'); + } else if (length <= 2 && typeof times === 'function') { + callback = task; + task = times; + } + if (typeof times !== 'function') { + parseTimes(opts, times); + } + opts.callback = callback; + opts.task = task; + + function wrappedTask(wrappedCallback, wrappedResults) { + function retryAttempt(task, finalAttempt) { + return function (seriesCallback) { + task(function (err, result) { + seriesCallback(!err || finalAttempt, { + err: err, + result: result + }); + }, wrappedResults); + }; + } + + function retryInterval(interval) { + return function (seriesCallback) { + setTimeout(function () { + seriesCallback(null); + }, interval); + }; + } + + while (opts.times) { + + var finalAttempt = !(opts.times -= 1); + attempts.push(retryAttempt(opts.task, finalAttempt)); + if (!finalAttempt && opts.interval > 0) { + attempts.push(retryInterval(opts.interval)); + } + } + + series(attempts, function (done, data) { + data = data[data.length - 1]; + (wrappedCallback || opts.callback)(data.err, data.result); + }); + } + + // If a callback is passed, run this as a controll flow + return opts.callback ? wrappedTask() : wrappedTask; + } + + var some = _createTester(eachOf, Boolean, identity); + + var someLimit = _createTester(eachOfLimit, Boolean, identity); + + function sortBy(arr, iterator, cb) { + map(arr, function (x, cb) { + iterator(x, function (err, criteria) { + if (err) return cb(err); + cb(null, { value: x, criteria: criteria }); + }); + }, function (err, results) { + if (err) return cb(err); + cb(null, arrayMap(results.sort(comparator), baseProperty('value'))); + }); + + function comparator(left, right) { + var a = left.criteria, + b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + } + } + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil; + var nativeMax$2 = Math.max; + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments to numbers. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the new array of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax$2(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; } - // included directly via <script> tag - else { - root.async = async; - } - -}()); + return result; + } + + function times (count, iterator, callback) { + map(baseRange(0, count, 1), iterator, callback); + } + + function timeLimit(count, limit, iterator, cb) { + return mapLimit(baseRange(0, count, 1), limit, iterator, cb); + } + + function timesSeries (count, iterator, callback) { + mapSeries(baseRange(0, count, 1), iterator, callback); + } + + function transform(arr, memo, iterator, callback) { + if (arguments.length === 3) { + callback = iterator; + iterator = memo; + memo = isArray(arr) ? [] : {}; + } + + eachOf(arr, function (v, k, cb) { + iterator(memo, v, k, cb); + }, function (err) { + callback(err, memo); + }); + } + + function unmemoize(fn) { + return function () { + return (fn.unmemoized || fn).apply(null, arguments); + }; + } + + function until(test, iterator, cb) { + return whilst(function () { + return !test.apply(this, arguments); + }, iterator, cb); + } + + function waterfall (tasks, cb) { + cb = once(cb || noop); + if (!isArray(tasks)) return cb(new Error('First argument to waterfall must be an array of functions')); + if (!tasks.length) return cb(); + + function wrapIterator(iterator) { + return rest(function (err, args) { + if (err) { + cb.apply(null, [err].concat(args)); + } else { + var next = iterator.next(); + if (next) { + args.push(wrapIterator(next)); + } else { + args.push(cb); + } + ensureAsync(iterator).apply(null, args); + } + }); + } + wrapIterator(iterator(tasks))(); + } + + var index = { + applyEach: applyEach, + applyEachSeries: applyEachSeries, + apply: apply, + asyncify: asyncify, + auto: auto, + cargo: cargo, + compose: compose, + concat: concat, + concatSeries: concatSeries, + constant: constant, + detect: detect, + detectLimit: detectLimit, + detectSeries: detectSeries, + dir: dir, + doDuring: doDuring, + doUntil: doUntil, + doWhilst: doWhilst, + during: during, + each: each, + eachLimit: eachLimit, + eachOf: eachOf, + eachOfLimit: eachOfLimit, + eachOfSeries: eachOfSeries, + eachSeries: eachSeries, + ensureAsync: ensureAsync, + every: every, + everyLimit: everyLimit, + filter: filter, + filterLimit: filterLimit, + filterSeries: filterSeries, + forever: forever, + iterator: iterator, + log: log, + map: map, + mapLimit: mapLimit, + mapSeries: mapSeries, + memoize: memoize, + nextTick: nexTick, + parallel: parallel, + parallelLimit: parallelLimit, + priorityQueue: priorityQueue, + queue: queue, + reduce: reduce, + reduceRight: reduceRight, + reject: reject, + rejectLimit: rejectLimit, + rejectSeries: rejectSeries, + retry: retry, + seq: seq, + series: series, + setImmediate: setImmediate$1, + some: some, + someLimit: someLimit, + sortBy: sortBy, + times: times, + timesLimit: timeLimit, + timesSeries: timesSeries, + transform: transform, + unmemoize: unmemoize, + until: until, + waterfall: waterfall, + whilst: whilst, + + // aliases + all: every, + any: some, + forEach: each, + forEachSeries: eachSeries, + forEachLimit: eachLimit, + forEachOf: eachOf, + forEachOfSeries: eachOfSeries, + forEachOfLimit: eachOfLimit, + inject: reduce, + foldl: reduce, + foldr: reduceRight, + select: filter, + selectLimit: filterLimit, + selectSeries: filterSeries, + wrapSync: asyncify + }; + + exports['default'] = index; + exports.applyEach = applyEach; + exports.applyEachSeries = applyEachSeries; + exports.apply = apply; + exports.asyncify = asyncify; + exports.auto = auto; + exports.cargo = cargo; + exports.compose = compose; + exports.concat = concat; + exports.concatSeries = concatSeries; + exports.constant = constant; + exports.detect = detect; + exports.detectLimit = detectLimit; + exports.detectSeries = detectSeries; + exports.dir = dir; + exports.doDuring = doDuring; + exports.doUntil = doUntil; + exports.doWhilst = doWhilst; + exports.during = during; + exports.each = each; + exports.eachLimit = eachLimit; + exports.eachOf = eachOf; + exports.eachOfLimit = eachOfLimit; + exports.eachOfSeries = eachOfSeries; + exports.eachSeries = eachSeries; + exports.ensureAsync = ensureAsync; + exports.every = every; + exports.everyLimit = everyLimit; + exports.filter = filter; + exports.filterLimit = filterLimit; + exports.filterSeries = filterSeries; + exports.forever = forever; + exports.iterator = iterator; + exports.log = log; + exports.map = map; + exports.mapLimit = mapLimit; + exports.mapSeries = mapSeries; + exports.memoize = memoize; + exports.nextTick = nexTick; + exports.parallel = parallel; + exports.parallelLimit = parallelLimit; + exports.priorityQueue = priorityQueue; + exports.queue = queue; + exports.reduce = reduce; + exports.reduceRight = reduceRight; + exports.reject = reject; + exports.rejectLimit = rejectLimit; + exports.rejectSeries = rejectSeries; + exports.retry = retry; + exports.seq = seq; + exports.series = series; + exports.setImmediate = setImmediate$1; + exports.some = some; + exports.someLimit = someLimit; + exports.sortBy = sortBy; + exports.times = times; + exports.timesLimit = timeLimit; + exports.timesSeries = timesSeries; + exports.transform = transform; + exports.unmemoize = unmemoize; + exports.until = until; + exports.waterfall = waterfall; + exports.whilst = whilst; + exports.all = every; + exports.any = some; + exports.forEach = each; + exports.forEachSeries = eachSeries; + exports.forEachLimit = eachLimit; + exports.forEachOf = eachOf; + exports.forEachOfSeries = eachOfSeries; + exports.forEachOfLimit = eachOfLimit; + exports.inject = reduce; + exports.foldl = reduce; + exports.foldr = reduceRight; + exports.select = filter; + exports.selectLimit = filterLimit; + exports.selectSeries = filterSeries; + exports.wrapSync = asyncify; + +}));
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\ No newline at end of file diff --git a/gulpfile.js b/gulpfile.js new file mode 100644 index 0000000..fbc58a1 --- /dev/null +++ b/gulpfile.js @@ -0,0 +1,89 @@ +'use strict'; +// This is used to generate individual packages for each async method + +var gulp = require('gulp'); +var path = require('path'); +var fs = require('fs-extra'); +var pkg = require('./package.json'); +var jsonFuture = require('json-future'); +var template = require('lodash.template'); + +var moduleDeps = JSON.parse(template(fs.readFileSync('./support/dependencies.json').toString())({ + version: pkg.version} + )); + +var MODULES_PATH = './lib/'; + +function getFolders(dir) { + return fs.readdirSync(dir) + .filter(function(file) { + return fs.statSync(path.join(dir, file)).isDirectory(); + }); +} + +function generatePackage(name) { + function generateKeywords(name) { + var keywords = [ + 'async', + 'async-modularized' + ]; + + keywords.push(name); + return keywords; + } + + function generateDefaultFields(name) { + var ORIGINAL_FIELDS = [ + 'author', + 'version', + 'repository', + 'license' + ]; + + var structure = { + name: 'async.' + name, + description: 'async ' + name + 'method as module.', + main: './index.js', + repository: "async-js/async." + name + }; + + ORIGINAL_FIELDS.forEach(function(field) { + structure[field] = pkg[field]; + }); + + if (Object.keys(moduleDeps[name]).length > 0) + structure.dependencies = moduleDeps[name]; + + return structure; + } + + var modulePackage = generateDefaultFields(name); + modulePackage.keywords = generateKeywords(name); + return modulePackage; +} + +function generateReadme(name, dist) { + var filepath = path.resolve('support/module_template.md'); + var tpl = fs.readFileSync(filepath).toString(); + tpl = template(tpl)({name: name}); + fs.writeFileSync(dist, tpl); +} + +function copyMetaFiles(dist) { + var files = ['.editorconfig', '.jscsrc', '.jshintrc', '.gitignore']; + + files.forEach(function(file) { + var metafile = path.resolve(file); + var distFile = path.resolve(dist, file); + fs.copySync(metafile, distFile); + }); +} + +gulp.task('package', function() { + return getFolders(MODULES_PATH).map(function(module) { + var dist = path.resolve(MODULES_PATH, module); + jsonFuture.save(path.resolve(dist, 'package.json'), generatePackage(module)); + generateReadme(module, path.resolve(dist, 'README.md')); + copyMetaFiles(dist); + }); +}); diff --git a/index.js b/index.js new file mode 100644 index 0000000..031f690 --- /dev/null +++ b/index.js @@ -0,0 +1,3 @@ +// This is not the main file in the npm package, but here so we can use github +// tarballs as packages when necessary. +module.exports = require("./build/"); diff --git a/karma.conf.js b/karma.conf.js index 9e048c3..0e90828 100644 --- a/karma.conf.js +++ b/karma.conf.js @@ -1,12 +1,17 @@ -module.exports = function (config) { - config.set({ - browsers: ['Firefox'], - files: ['mocha_test/*.js'], - frameworks: ['browserify', 'mocha'], - preprocessors: { - 'mocha_test/*.js': ['browserify'] - }, - reporters: ['mocha'], - singleRun: true - }); -} +module.exports = function(config) { + config.set({ + browsers: ['Firefox'], + files: ['mocha_test/*.js'], + frameworks: ['browserify', 'mocha'], + preprocessors: { + 'mocha_test/*.js': ['browserify'] + }, + reporters: ['mocha'], + singleRun: true, + + browserify: { + debug: true, + transform: ['babelify'] + } + }); +}; diff --git a/lib/apply.js b/lib/apply.js new file mode 100644 index 0000000..76b5602 --- /dev/null +++ b/lib/apply.js @@ -0,0 +1,9 @@ +'use strict'; + +import rest from 'lodash/rest'; + +export default rest(function(fn, args) { + return rest(function(callArgs) { + return fn.apply(null, args.concat(callArgs)); + }); +}); diff --git a/lib/applyEach.js b/lib/applyEach.js new file mode 100644 index 0000000..2c5f001 --- /dev/null +++ b/lib/applyEach.js @@ -0,0 +1,6 @@ +'use strict'; + +import applyEach from './internal/applyEach'; +import eachOf from './eachOf'; + +export default applyEach(eachOf); diff --git a/lib/applyEachSeries.js b/lib/applyEachSeries.js new file mode 100644 index 0000000..e917618 --- /dev/null +++ b/lib/applyEachSeries.js @@ -0,0 +1,6 @@ +'use strict'; + +import applyEach from './internal/applyEach'; +import eachOfSeries from './eachOfSeries'; + +export default applyEach(eachOfSeries); diff --git a/lib/async.js b/lib/async.js deleted file mode 100644 index dbc5682..0000000 --- a/lib/async.js +++ /dev/null @@ -1,1265 +0,0 @@ -/*! - * async - * https://github.com/caolan/async - * - * Copyright 2010-2016 Caolan McMahon - * Released under the MIT license - */ -(function () { - - var async = {}; - function noop() {} - function identity(v) { - return v; - } - function toBool(v) { - return !!v; - } - function notId(v) { - return !v; - } - - // global on the server, window in the browser - var previous_async; - - // Establish the root object, `window` (`self`) in the browser, `global` - // on the server, or `this` in some virtual machines. We use `self` - // instead of `window` for `WebWorker` support. - var root = typeof self === 'object' && self.self === self && self || - typeof global === 'object' && global.global === global && global || - this; - - if (root != null) { - previous_async = root.async; - } - - async.noConflict = function () { - root.async = previous_async; - return async; - }; - - function only_once(fn) { - return function() { - if (fn === null) throw new Error("Callback was already called."); - fn.apply(this, arguments); - fn = null; - }; - } - - function _once(fn) { - return function() { - if (fn === null) return; - fn.apply(this, arguments); - fn = null; - }; - } - - //// cross-browser compatiblity functions //// - - var _toString = Object.prototype.toString; - - var _isArray = Array.isArray || function (obj) { - return _toString.call(obj) === '[object Array]'; - }; - - // Ported from underscore.js isObject - var _isObject = function(obj) { - var type = typeof obj; - return type === 'function' || type === 'object' && !!obj; - }; - - function _isArrayLike(arr) { - return _isArray(arr) || ( - // has a positive integer length property - typeof arr.length === "number" && - arr.length >= 0 && - arr.length % 1 === 0 - ); - } - - 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); - }); - } - - function _indexOf(arr, item) { - for (var i = 0; i < arr.length; i++) { - if (arr[i] === item) return i; - } - return -1; - } - - 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; - }; - } - } - - // Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html) - // This accumulates the arguments passed into an array, after a given index. - // From underscore.js (https://github.com/jashkenas/underscore/pull/2140). - function _restParam(func, startIndex) { - startIndex = startIndex == null ? func.length - 1 : +startIndex; - return function() { - var length = Math.max(arguments.length - startIndex, 0); - var rest = Array(length); - for (var index = 0; index < length; index++) { - rest[index] = arguments[index + startIndex]; - } - switch (startIndex) { - case 0: return func.call(this, rest); - case 1: return func.call(this, arguments[0], rest); - } - // Currently unused but handle cases outside of the switch statement: - // var args = Array(startIndex + 1); - // for (index = 0; index < startIndex; index++) { - // args[index] = arguments[index]; - // } - // args[startIndex] = rest; - // return func.apply(this, args); - }; - } - - 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 = typeof setImmediate === 'function' && setImmediate; - - var _delay = _setImmediate ? function(fn) { - // not a direct alias for IE10 compatibility - _setImmediate(fn); - } : function(fn) { - setTimeout(fn, 0); - }; - - if (typeof process === 'object' && typeof process.nextTick === 'function') { - async.nextTick = process.nextTick; - } else { - async.nextTick = _delay; - } - async.setImmediate = _setImmediate ? _delay : 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 iter = _keyIterator(object); - var key, completed = 0; - - while ((key = iter()) != null) { - completed += 1; - iterator(object[key], key, only_once(done)); - } - - if (completed === 0) callback(null); - - function done(err) { - completed--; - if (err) { - callback(err); - } - // Check key is null in case iterator isn't exhausted - // and done resolved synchronously. - else if (key === null && completed <= 0) { - 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.setImmediate(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(fn) { - return function (obj, limit, 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); - arr = arr || []; - var results = _isArrayLike(arr) ? [] : {}; - 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 = doParallelLimit(_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, memo); - }); - }; - - async.foldr = - async.reduceRight = function (arr, memo, iterator, callback) { - var reversed = _map(arr, identity).reverse(); - async.reduce(reversed, memo, iterator, callback); - }; - - async.transform = function (arr, memo, iterator, callback) { - if (arguments.length === 3) { - callback = iterator; - iterator = memo; - memo = _isArray(arr) ? [] : {}; - } - - async.eachOf(arr, function(v, k, cb) { - iterator(memo, v, k, cb); - }, function(err) { - callback(err, memo); - }); - }; - - function _filter(eachfn, arr, iterator, callback) { - var results = []; - eachfn(arr, function (x, index, callback) { - iterator(x, function (v) { - if (v) { - results.push({index: index, value: 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.selectLimit = - async.filterLimit = doParallelLimit(_filter); - - async.selectSeries = - async.filterSeries = doSeries(_filter); - - function _reject(eachfn, arr, iterator, callback) { - _filter(eachfn, arr, function(value, cb) { - iterator(value, function(v) { - cb(!v); - }); - }, callback); - } - async.reject = doParallel(_reject); - async.rejectLimit = doParallelLimit(_reject); - async.rejectSeries = doSeries(_reject); - - function _createTester(eachfn, check, getResult) { - return function(arr, limit, iterator, cb) { - function done() { - if (cb) cb(getResult(false, void 0)); - } - function iteratee(x, _, callback) { - if (!cb) return callback(); - iterator(x, function (v) { - if (cb && check(v)) { - cb(getResult(true, x)); - cb = iterator = false; - } - callback(); - }); - } - if (arguments.length > 3) { - eachfn(arr, limit, iteratee, done); - } else { - cb = iterator; - iterator = limit; - eachfn(arr, iteratee, done); - } - }; - } - - async.any = - async.some = _createTester(async.eachOf, toBool, identity); - - async.someLimit = _createTester(async.eachOfLimit, toBool, identity); - - async.all = - async.every = _createTester(async.eachOf, notId, notId); - - async.everyLimit = _createTester(async.eachOfLimit, notId, notId); - - function _findGetResult(v, x) { - return x; - } - async.detect = _createTester(async.eachOf, identity, _findGetResult); - async.detectSeries = _createTester(async.eachOfSeries, identity, _findGetResult); - async.detectLimit = _createTester(async.eachOfLimit, identity, _findGetResult); - - 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, concurrency, callback) { - if (typeof arguments[1] === 'function') { - // concurrency is optional, shift the args. - callback = concurrency; - concurrency = null; - } - callback = _once(callback || noop); - var keys = _keys(tasks); - var remainingTasks = keys.length; - if (!remainingTasks) { - return callback(null); - } - if (!concurrency) { - concurrency = remainingTasks; - } - - var results = {}; - var runningTasks = 0; - - var hasError = false; - - var listeners = []; - function addListener(fn) { - listeners.unshift(fn); - } - function removeListener(fn) { - var idx = _indexOf(listeners, fn); - if (idx >= 0) listeners.splice(idx, 1); - } - function taskComplete() { - remainingTasks--; - _arrayEach(listeners.slice(0), function (fn) { - fn(); - }); - } - - addListener(function () { - if (!remainingTasks) { - callback(null, results); - } - }); - - _arrayEach(keys, function (k) { - if (hasError) return; - var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]]; - var taskCallback = _restParam(function(err, args) { - runningTasks--; - if (args.length <= 1) { - args = args[0]; - } - if (err) { - var safeResults = {}; - _forEachOf(results, function(val, rkey) { - safeResults[rkey] = val; - }); - safeResults[k] = args; - hasError = true; - - callback(err, safeResults); - } - else { - results[k] = args; - async.setImmediate(taskComplete); - } - }); - var requires = task.slice(0, task.length - 1); - // prevent dead-locks - var len = requires.length; - var dep; - while (len--) { - if (!(dep = tasks[requires[len]])) { - throw new Error('Has nonexistent dependency in ' + requires.join(', ')); - } - if (_isArray(dep) && _indexOf(dep, k) >= 0) { - throw new Error('Has cyclic dependencies'); - } - } - function ready() { - return runningTasks < concurrency && _reduce(requires, function (a, x) { - return (a && results.hasOwnProperty(x)); - }, true) && !results.hasOwnProperty(k); - } - if (ready()) { - runningTasks++; - task[task.length - 1](taskCallback, results); - } - else { - addListener(listener); - } - function listener() { - if (ready()) { - runningTasks++; - removeListener(listener); - task[task.length - 1](taskCallback, results); - } - } - }); - }; - - - - async.retry = function(times, task, callback) { - var DEFAULT_TIMES = 5; - var DEFAULT_INTERVAL = 0; - - var attempts = []; - - var opts = { - times: DEFAULT_TIMES, - interval: DEFAULT_INTERVAL - }; - - function parseTimes(acc, t){ - if(typeof t === 'number'){ - acc.times = parseInt(t, 10) || DEFAULT_TIMES; - } else if(typeof t === 'object'){ - acc.times = parseInt(t.times, 10) || DEFAULT_TIMES; - acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL; - } else { - throw new Error('Unsupported argument type for \'times\': ' + typeof t); - } - } - - var length = arguments.length; - if (length < 1 || length > 3) { - throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)'); - } else if (length <= 2 && typeof times === 'function') { - callback = task; - task = times; - } - if (typeof times !== 'function') { - parseTimes(opts, times); - } - opts.callback = callback; - opts.task = task; - - function wrappedTask(wrappedCallback, wrappedResults) { - function retryAttempt(task, finalAttempt) { - return function(seriesCallback) { - task(function(err, result){ - seriesCallback(!err || finalAttempt, {err: err, result: result}); - }, wrappedResults); - }; - } - - function retryInterval(interval){ - return function(seriesCallback){ - setTimeout(function(){ - seriesCallback(null); - }, interval); - }; - } - - while (opts.times) { - - var finalAttempt = !(opts.times-=1); - attempts.push(retryAttempt(opts.task, finalAttempt)); - if(!finalAttempt && opts.interval > 0){ - attempts.push(retryInterval(opts.interval)); - } - } - - async.series(attempts, function(done, data){ - data = data[data.length - 1]; - (wrappedCallback || opts.callback)(data.err, data.result); - }); - } - - // If a callback is passed, run this as a controll flow - return opts.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 _restParam(function (err, args) { - if (err) { - callback.apply(null, [err].concat(args)); - } - else { - 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(_restParam(function (err, args) { - 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) { - _parallel(async.eachOfSeries, tasks, callback); - }; - - 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 = _restParam(function (fn, args) { - return _restParam(function (callArgs) { - return fn.apply( - null, args.concat(callArgs) - ); - }); - }); - - 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) { - callback = callback || noop; - if (test()) { - var next = _restParam(function(err, args) { - if (err) { - callback(err); - } else if (test.apply(this, args)) { - iterator(next); - } else { - callback.apply(null, [null].concat(args)); - } - }); - iterator(next); - } else { - callback(null); - } - }; - - async.doWhilst = function (iterator, test, callback) { - var calls = 0; - return async.whilst(function() { - return ++calls <= 1 || test.apply(this, arguments); - }, iterator, callback); - }; - - async.until = function (test, iterator, callback) { - return async.whilst(function() { - return !test.apply(this, arguments); - }, iterator, callback); - }; - - async.doUntil = function (iterator, test, callback) { - return async.doWhilst(iterator, function() { - return !test.apply(this, arguments); - }, callback); - }; - - async.during = function (test, iterator, callback) { - callback = callback || noop; - - var next = _restParam(function(err, args) { - if (err) { - callback(err); - } else { - args.push(check); - test.apply(this, args); - } - }); - - var check = function(err, truth) { - if (err) { - callback(err); - } else if (truth) { - iterator(next); - } else { - callback(null); - } - }; - - test(check); - }; - - async.doDuring = function (iterator, test, callback) { - var calls = 0; - async.during(function(next) { - if (calls++ < 1) { - next(null, true); - } else { - test.apply(this, arguments); - } - }, iterator, callback); - }; - - 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 removed = false; - var args = arguments; - _arrayEach(tasks, function (task) { - _arrayEach(workersList, function (worker, index) { - if (worker === task && !removed) { - workersList.splice(index, 1); - removed = true; - } - }); - - task.callback.apply(task, args); - }); - if (q.tasks.length + workers === 0) { - q.drain(); - } - q.process(); - }; - } - - var workers = 0; - var workersList = []; - var q = { - tasks: [], - concurrency: concurrency, - payload: payload, - 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 () { - while(!q.paused && workers < q.concurrency && q.tasks.length){ - - var tasks = q.payload ? - q.tasks.splice(0, q.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; - workersList.push(tasks[0]); - var cb = only_once(_next(q, tasks)); - worker(data, cb); - } - }, - length: function () { - return q.tasks.length; - }, - running: function () { - return workers; - }, - workersList: function () { - return workersList; - }, - 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 _restParam(function (fn, args) { - fn.apply(null, args.concat([_restParam(function (err, args) { - if (typeof console === 'object') { - 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 = {}; - var has = Object.prototype.hasOwnProperty; - hasher = hasher || identity; - var memoized = _restParam(function memoized(args) { - var callback = args.pop(); - var key = hasher.apply(null, args); - if (has.call(memo, key)) { - async.setImmediate(function () { - callback.apply(null, memo[key]); - }); - } - else if (has.call(queues, key)) { - queues[key].push(callback); - } - else { - queues[key] = [callback]; - fn.apply(null, args.concat([_restParam(function (args) { - memo[key] = args; - var q = queues[key]; - delete queues[key]; - for (var i = 0, l = q.length; i < l; i++) { - q[i].apply(null, args); - } - })])); - } - }); - 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 _restParam(function (args) { - var that = this; - - var callback = args[args.length - 1]; - if (typeof callback == 'function') { - args.pop(); - } else { - callback = noop; - } - - async.reduce(fns, args, function (newargs, fn, cb) { - fn.apply(that, newargs.concat([_restParam(function (err, nextargs) { - 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) { - return _restParam(function(fns, args) { - var go = _restParam(function(args) { - var that = this; - var callback = args.pop(); - return eachfn(fns, function (fn, _, cb) { - fn.apply(that, args.concat([cb])); - }, - callback); - }); - if (args.length) { - return go.apply(this, args); - } - else { - return go; - } - }); - } - - async.applyEach = _applyEach(async.eachOf); - async.applyEachSeries = _applyEach(async.eachOfSeries); - - - 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 _restParam(function (args) { - 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; - - async.constant = _restParam(function(values) { - var args = [null].concat(values); - return function (callback) { - return callback.apply(this, args); - }; - }); - - async.wrapSync = - async.asyncify = function asyncify(func) { - return _restParam(function (args) { - var callback = args.pop(); - var result; - try { - result = func.apply(this, args); - } catch (e) { - return callback(e); - } - // if result is Promise object - if (_isObject(result) && typeof result.then === "function") { - result.then(function(value) { - callback(null, value); - })["catch"](function(err) { - callback(err.message ? err : new Error(err)); - }); - } else { - callback(null, result); - } - }); - }; - - // Node.js - if (typeof module === 'object' && module.exports) { - module.exports = async; - } - // AMD / RequireJS - else if (typeof define === 'function' && define.amd) { - define([], function () { - return async; - }); - } - // included directly via <script> tag - else { - root.async = async; - } - -}()); diff --git a/lib/asyncify.js b/lib/asyncify.js new file mode 100644 index 0000000..f9f00e1 --- /dev/null +++ b/lib/asyncify.js @@ -0,0 +1,26 @@ +'use strict'; + +import isObject from 'lodash/isObject'; +import rest from 'lodash/rest'; + +export default function asyncify(func) { + return rest(function (args) { + var callback = args.pop(); + var result; + try { + result = func.apply(this, args); + } catch (e) { + return callback(e); + } + // if result is Promise object + if (isObject(result) && typeof result.then === 'function') { + result.then(function(value) { + callback(null, value); + })['catch'](function(err) { + callback(err.message ? err : new Error(err)); + }); + } else { + callback(null, result); + } + }); +} diff --git a/lib/auto.js b/lib/auto.js new file mode 100644 index 0000000..327383b --- /dev/null +++ b/lib/auto.js @@ -0,0 +1,114 @@ +'use strict'; + +import arrayEach from 'lodash/_arrayEach'; +import arrayEvery from 'lodash/_arrayEvery'; +import baseHas from 'lodash/_baseHas'; +import forOwn from 'lodash/forOwn'; +import indexOf from 'lodash/indexOf'; +import isArray from 'lodash/isArray'; +import okeys from 'lodash/keys'; +import noop from 'lodash/noop'; +import once from 'lodash/once'; +import rest from 'lodash/rest'; + +import setImmediate from './internal/setImmediate'; + +export default function (tasks, concurrency, callback) { + if (typeof arguments[1] === 'function') { + // concurrency is optional, shift the args. + callback = concurrency; + concurrency = null; + } + callback = once(callback || noop); + var keys = okeys(tasks); + var remainingTasks = keys.length; + if (!remainingTasks) { + return callback(null); + } + if (!concurrency) { + concurrency = remainingTasks; + } + + var results = {}; + var runningTasks = 0; + var hasError = false; + + var listeners = []; + function addListener(fn) { + listeners.unshift(fn); + } + function removeListener(fn) { + var idx = indexOf(listeners, fn); + if (idx >= 0) listeners.splice(idx, 1); + } + function taskComplete() { + remainingTasks--; + arrayEach(listeners.slice(), function (fn) { + fn(); + }); + } + + addListener(function () { + if (!remainingTasks) { + callback(null, results); + } + }); + + arrayEach(keys, function (k) { + if (hasError) return; + var task = isArray(tasks[k]) ? tasks[k]: [tasks[k]]; + var taskCallback = rest(function(err, args) { + runningTasks--; + if (args.length <= 1) { + args = args[0]; + } + if (err) { + var safeResults = {}; + forOwn(results, function(val, rkey) { + safeResults[rkey] = val; + }); + safeResults[k] = args; + hasError = true; + + callback(err, safeResults); + } + else { + results[k] = args; + setImmediate(taskComplete); + } + }); + var requires = task.slice(0, task.length - 1); + // prevent dead-locks + var len = requires.length; + var dep; + while (len--) { + if (!(dep = tasks[requires[len]])) { + throw new Error('Has non-existent dependency in ' + + requires.join(', ')); + } + if (isArray(dep) && indexOf(dep, k) >= 0) { + throw new Error('Has cyclic dependencies'); + } + } + function ready() { + return runningTasks < concurrency && !baseHas(results, k) && + arrayEvery(requires, function (x) { + return baseHas(results, x); + }); + } + if (ready()) { + runningTasks++; + task[task.length - 1](taskCallback, results); + } + else { + addListener(listener); + } + function listener() { + if (ready()) { + runningTasks++; + removeListener(listener); + task[task.length - 1](taskCallback, results); + } + } + }); +} diff --git a/lib/cargo.js b/lib/cargo.js new file mode 100644 index 0000000..b90ab0f --- /dev/null +++ b/lib/cargo.js @@ -0,0 +1,7 @@ +'use strict'; + +import queue from './internal/queue'; + +export default function cargo(worker, payload) { + return queue(worker, 1, payload); +} diff --git a/lib/compose.js b/lib/compose.js new file mode 100644 index 0000000..9e92521 --- /dev/null +++ b/lib/compose.js @@ -0,0 +1,9 @@ +'use strict'; + +import seq from './seq'; + +var reverse = Array.prototype.reverse; + +export default function compose(/* functions... */) { + return seq.apply(null, reverse.call(arguments)); +} diff --git a/lib/concat.js b/lib/concat.js new file mode 100644 index 0000000..af019a3 --- /dev/null +++ b/lib/concat.js @@ -0,0 +1,6 @@ +'use strict'; + +import concat from './internal/concat'; +import doParallel from './internal/doParallel'; + +export default doParallel(concat); diff --git a/lib/concatSeries.js b/lib/concatSeries.js new file mode 100644 index 0000000..76f4043 --- /dev/null +++ b/lib/concatSeries.js @@ -0,0 +1,6 @@ +'use strict'; + +import concat from './internal/concat'; +import doSeries from './internal/doSeries'; + +export default doSeries(concat); diff --git a/lib/constant.js b/lib/constant.js new file mode 100644 index 0000000..706507f --- /dev/null +++ b/lib/constant.js @@ -0,0 +1,10 @@ +'use strict'; + +import rest from 'lodash/rest'; + +export default rest(function(values) { + var args = [null].concat(values); + return function (cb) { + return cb.apply(this, args); + }; +}); diff --git a/lib/detect.js b/lib/detect.js new file mode 100644 index 0000000..b2c4778 --- /dev/null +++ b/lib/detect.js @@ -0,0 +1,9 @@ +'use strict'; + +import identity from 'lodash/identity'; + +import createTester from './internal/createTester'; +import eachOf from './eachOf'; +import findGetResult from './internal/findGetResult'; + +export default createTester(eachOf, identity, findGetResult); diff --git a/lib/detectLimit.js b/lib/detectLimit.js new file mode 100644 index 0000000..357786d --- /dev/null +++ b/lib/detectLimit.js @@ -0,0 +1,9 @@ +'use strict'; + +import identity from 'lodash/identity'; + +import createTester from './internal/createTester'; +import eachOfLimit from './eachOfLimit'; +import findGetResult from './internal/findGetResult'; + +export default createTester(eachOfLimit, identity, findGetResult); diff --git a/lib/detectSeries.js b/lib/detectSeries.js new file mode 100644 index 0000000..325a500 --- /dev/null +++ b/lib/detectSeries.js @@ -0,0 +1,9 @@ +'use strict'; + +import identity from 'lodash/identity'; + +import createTester from './internal/createTester'; +import eachOfSeries from './eachOfSeries'; +import findGetResult from './internal/findGetResult'; + +export default createTester(eachOfSeries, identity, findGetResult); diff --git a/lib/dir.js b/lib/dir.js new file mode 100644 index 0000000..049b416 --- /dev/null +++ b/lib/dir.js @@ -0,0 +1,5 @@ +'use strict'; + +import consoleFunc from './internal/consoleFunc'; + +export default consoleFunc('dir'); diff --git a/lib/doDuring.js b/lib/doDuring.js new file mode 100644 index 0000000..c13e62b --- /dev/null +++ b/lib/doDuring.js @@ -0,0 +1,12 @@ +'use strict'; + +import during from './during'; + +export default function doDuring(iterator, test, cb) { + var calls = 0; + + during(function(next) { + if (calls++ < 1) return next(null, true); + test.apply(this, arguments); + }, iterator, cb); +} diff --git a/lib/doUntil.js b/lib/doUntil.js new file mode 100644 index 0000000..3bc783f --- /dev/null +++ b/lib/doUntil.js @@ -0,0 +1,9 @@ +'use strict'; + +import doWhilst from './doWhilst'; + +export default function doUntil(iterator, test, cb) { + return doWhilst(iterator, function() { + return !test.apply(this, arguments); + }, cb); +} diff --git a/lib/doWhilst.js b/lib/doWhilst.js new file mode 100644 index 0000000..b05d1d8 --- /dev/null +++ b/lib/doWhilst.js @@ -0,0 +1,10 @@ +'use strict'; + +import whilst from './whilst'; + +export default function doWhilst(iterator, test, cb) { + var calls = 0; + return whilst(function() { + return ++calls <= 1 || test.apply(this, arguments); + }, iterator, cb); +} diff --git a/lib/during.js b/lib/during.js new file mode 100644 index 0000000..6b7c4d4 --- /dev/null +++ b/lib/during.js @@ -0,0 +1,25 @@ +'use strict'; + +import noop from 'lodash/noop'; +import rest from 'lodash/rest'; + +export default function during(test, iterator, cb) { + cb = cb || noop; + + var next = rest(function(err, args) { + if (err) { + cb(err); + } else { + args.push(check); + test.apply(this, args); + } + }); + + var check = function(err, truth) { + if (err) return cb(err); + if (!truth) return cb(null); + iterator(next); + }; + + test(check); +} diff --git a/lib/each.js b/lib/each.js new file mode 100644 index 0000000..384bb0a --- /dev/null +++ b/lib/each.js @@ -0,0 +1,8 @@ +'use strict'; + +import eachOf from './eachOf'; +import withoutIndex from './internal/withoutIndex'; + +export default function each(arr, iterator, cb) { + return eachOf(arr, withoutIndex(iterator), cb); +} diff --git a/lib/eachLimit.js b/lib/eachLimit.js new file mode 100644 index 0000000..5009cc3 --- /dev/null +++ b/lib/eachLimit.js @@ -0,0 +1,9 @@ +'use strict'; + +import eachOfLimit from './internal/eachOfLimit'; +import withoutIndex from './internal/withoutIndex'; + + +export default function eachLimit(arr, limit, iterator, cb) { + return eachOfLimit(limit)(arr, withoutIndex(iterator), cb); +} diff --git a/lib/eachOf.js b/lib/eachOf.js new file mode 100644 index 0000000..c370bbb --- /dev/null +++ b/lib/eachOf.js @@ -0,0 +1,34 @@ +'use strict'; + +import once from 'lodash/once'; +import noop from 'lodash/noop'; + +import keyIterator from './internal/keyIterator'; +import onlyOnce from './internal/onlyOnce'; + +export default function eachOf(object, iterator, callback) { + callback = once(callback || noop); + object = object || []; + + var iter = keyIterator(object); + var key, completed = 0; + + while ((key = iter()) != null) { + completed += 1; + iterator(object[key], key, onlyOnce(done)); + } + + if (completed === 0) callback(null); + + function done(err) { + completed--; + if (err) { + callback(err); + } + // Check key is null in case iterator isn't exhausted + // and done resolved synchronously. + else if (key === null && completed <= 0) { + callback(null); + } + } +} diff --git a/lib/eachOfLimit.js b/lib/eachOfLimit.js new file mode 100644 index 0000000..e381474 --- /dev/null +++ b/lib/eachOfLimit.js @@ -0,0 +1,7 @@ +'use strict'; + +import _eachOfLimit from './internal/eachOfLimit'; + +export default function eachOfLimit(obj, limit, iterator, cb) { + _eachOfLimit(limit)(obj, iterator, cb); +} diff --git a/lib/eachOfSeries.js b/lib/eachOfSeries.js new file mode 100644 index 0000000..bcfa029 --- /dev/null +++ b/lib/eachOfSeries.js @@ -0,0 +1,40 @@ +'use strict'; + +import once from 'lodash/once'; +import noop from 'lodash/noop'; + +import keyIterator from './internal/keyIterator'; +import onlyOnce from './internal/onlyOnce'; +import setImmediate from './setImmediate'; + +export default function eachOfSeries(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, onlyOnce(function(err) { + if (err) { + callback(err); + } else { + key = nextKey(); + if (key === null) { + return callback(null); + } else { + if (sync) { + setImmediate(iterate); + } else { + iterate(); + } + } + } + })); + sync = false; + } + iterate(); +} diff --git a/lib/eachSeries.js b/lib/eachSeries.js new file mode 100644 index 0000000..fd08c04 --- /dev/null +++ b/lib/eachSeries.js @@ -0,0 +1,8 @@ +'use strict'; + +import eachOfSeries from './eachOfSeries'; +import withoutIndex from './internal/withoutIndex'; + +export default function eachSeries(arr, iterator, cb) { + return eachOfSeries(arr, withoutIndex(iterator), cb); +} diff --git a/lib/ensureAsync.js b/lib/ensureAsync.js new file mode 100644 index 0000000..4f4f762 --- /dev/null +++ b/lib/ensureAsync.js @@ -0,0 +1,24 @@ +'use strict'; + +import rest from 'lodash/rest'; + +import setImmediate from './internal/setImmediate'; + +export default function ensureAsync(fn) { + return rest(function (args) { + var callback = args.pop(); + var sync = true; + args.push(function () { + var innerArgs = arguments; + if (sync) { + setImmediate(function () { + callback.apply(null, innerArgs); + }); + } else { + callback.apply(null, innerArgs); + } + }); + fn.apply(this, args); + sync = false; + }); +} diff --git a/lib/every.js b/lib/every.js new file mode 100644 index 0000000..7ee3713 --- /dev/null +++ b/lib/every.js @@ -0,0 +1,7 @@ +'use strict'; + +import createTester from './internal/createTester'; +import eachOf from './eachOf'; +import notId from './internal/notId'; + +export default createTester(eachOf, notId, notId); diff --git a/lib/everyLimit.js b/lib/everyLimit.js new file mode 100644 index 0000000..4b3fc5f --- /dev/null +++ b/lib/everyLimit.js @@ -0,0 +1,7 @@ +'use strict'; + +import createTester from './internal/createTester'; +import eachOfLimit from './eachOfLimit'; +import notId from './internal/notId'; + +export default createTester(eachOfLimit, notId, notId); diff --git a/lib/filter.js b/lib/filter.js new file mode 100644 index 0000000..36af2b1 --- /dev/null +++ b/lib/filter.js @@ -0,0 +1,6 @@ +'use strict'; + +import filter from './internal/filter'; +import doParallel from './internal/doParallel'; + +export default doParallel(filter); diff --git a/lib/filterLimit.js b/lib/filterLimit.js new file mode 100644 index 0000000..8fe237f --- /dev/null +++ b/lib/filterLimit.js @@ -0,0 +1,6 @@ +'use strict'; + +import filter from './internal/filter'; +import doParallelLimit from './internal/doParallelLimit'; + +export default doParallelLimit(filter); diff --git a/lib/filterSeries.js b/lib/filterSeries.js new file mode 100644 index 0000000..861ca8b --- /dev/null +++ b/lib/filterSeries.js @@ -0,0 +1,6 @@ +'use strict'; + +import filter from './internal/filter'; +import doSeries from './internal/doSeries'; + +export default doSeries(filter); diff --git a/lib/forever.js b/lib/forever.js new file mode 100644 index 0000000..82d004a --- /dev/null +++ b/lib/forever.js @@ -0,0 +1,17 @@ +'use strict'; + +import noop from 'lodash/noop'; + +import onlyOnce from './internal/onlyOnce'; +import ensureAsync from './ensureAsync'; + +export default function forever(fn, cb) { + var done = onlyOnce(cb || noop); + var task = ensureAsync(fn); + + function next(err) { + if (err) return done(err); + task(next); + } + next(); +} diff --git a/lib/index.js b/lib/index.js new file mode 100644 index 0000000..a165909 --- /dev/null +++ b/lib/index.js @@ -0,0 +1,228 @@ +'use strict'; + +import applyEach from './applyEach'; +import applyEachSeries from './applyEachSeries'; +import apply from './apply'; +import asyncify from './asyncify'; +import auto from './auto'; +import cargo from './cargo'; +import compose from './compose'; +import concat from './concat'; +import concatSeries from './concatSeries'; +import constant from './constant'; +import detect from './detect'; +import detectLimit from './detectLimit'; +import detectSeries from './detectSeries'; +import dir from './dir'; +import doDuring from './doDuring'; +import doUntil from './doUntil'; +import doWhilst from './doWhilst'; +import during from './during'; +import each from './each'; +import eachLimit from './eachLimit'; +import eachOf from './eachOf'; +import eachOfLimit from './eachOfLimit'; +import eachOfSeries from './eachOfSeries'; +import eachSeries from './eachSeries'; +import ensureAsync from './ensureAsync'; +import every from './every'; +import everyLimit from './everyLimit'; +import filter from './filter'; +import filterLimit from './filterLimit'; +import filterSeries from './filterSeries'; +import forever from './forever'; +import iterator from './iterator'; +import log from './log'; +import map from './map'; +import mapLimit from './mapLimit'; +import mapSeries from './mapSeries'; +import memoize from './memoize'; +import nextTick from './nextTick'; +import parallel from './parallel'; +import parallelLimit from './parallelLimit'; +import priorityQueue from './priorityQueue'; +import queue from './queue'; +import reduce from './reduce'; +import reduceRight from './reduceRight'; +import reject from './reject'; +import rejectLimit from './rejectLimit'; +import rejectSeries from './rejectSeries'; +import retry from './retry'; +import seq from './seq'; +import series from './series'; +import setImmediate from './setImmediate'; +import some from './some'; +import someLimit from './someLimit'; +import sortBy from './sortBy'; +import times from './times'; +import timesLimit from './timesLimit'; +import timesSeries from './timesSeries'; +import transform from './transform'; +import unmemoize from './unmemoize'; +import until from './until'; +import waterfall from './waterfall'; +import whilst from './whilst'; + +export default { + applyEach: applyEach, + applyEachSeries: applyEachSeries, + apply: apply, + asyncify: asyncify, + auto: auto, + cargo: cargo, + compose: compose, + concat: concat, + concatSeries: concatSeries, + constant: constant, + detect: detect, + detectLimit: detectLimit, + detectSeries: detectSeries, + dir: dir, + doDuring: doDuring, + doUntil: doUntil, + doWhilst: doWhilst, + during: during, + each: each, + eachLimit: eachLimit, + eachOf: eachOf, + eachOfLimit: eachOfLimit, + eachOfSeries: eachOfSeries, + eachSeries: eachSeries, + ensureAsync: ensureAsync, + every: every, + everyLimit: everyLimit, + filter: filter, + filterLimit: filterLimit, + filterSeries: filterSeries, + forever: forever, + iterator: iterator, + log: log, + map: map, + mapLimit: mapLimit, + mapSeries: mapSeries, + memoize: memoize, + nextTick: nextTick, + parallel: parallel, + parallelLimit: parallelLimit, + priorityQueue: priorityQueue, + queue: queue, + reduce: reduce, + reduceRight: reduceRight, + reject: reject, + rejectLimit: rejectLimit, + rejectSeries: rejectSeries, + retry: retry, + seq: seq, + series: series, + setImmediate: setImmediate, + some: some, + someLimit: someLimit, + sortBy: sortBy, + times: times, + timesLimit: timesLimit, + timesSeries: timesSeries, + transform: transform, + unmemoize: unmemoize, + until: until, + waterfall: waterfall, + whilst: whilst, + + // aliases + all: every, + any: some, + forEach: each, + forEachSeries: eachSeries, + forEachLimit: eachLimit, + forEachOf: eachOf, + forEachOfSeries: eachOfSeries, + forEachOfLimit: eachOfLimit, + inject: reduce, + foldl: reduce, + foldr: reduceRight, + select: filter, + selectLimit: filterLimit, + selectSeries: filterSeries, + wrapSync: asyncify +}; + +export { + applyEach as applyEach, + applyEachSeries as applyEachSeries, + apply as apply, + asyncify as asyncify, + auto as auto, + cargo as cargo, + compose as compose, + concat as concat, + concatSeries as concatSeries, + constant as constant, + detect as detect, + detectLimit as detectLimit, + detectSeries as detectSeries, + dir as dir, + doDuring as doDuring, + doUntil as doUntil, + doWhilst as doWhilst, + during as during, + each as each, + eachLimit as eachLimit, + eachOf as eachOf, + eachOfLimit as eachOfLimit, + eachOfSeries as eachOfSeries, + eachSeries as eachSeries, + ensureAsync as ensureAsync, + every as every, + everyLimit as everyLimit, + filter as filter, + filterLimit as filterLimit, + filterSeries as filterSeries, + forever as forever, + iterator as iterator, + log as log, + map as map, + mapLimit as mapLimit, + mapSeries as mapSeries, + memoize as memoize, + nextTick as nextTick, + parallel as parallel, + parallelLimit as parallelLimit, + priorityQueue as priorityQueue, + queue as queue, + reduce as reduce, + reduceRight as reduceRight, + reject as reject, + rejectLimit as rejectLimit, + rejectSeries as rejectSeries, + retry as retry, + seq as seq, + series as series, + setImmediate as setImmediate, + some as some, + someLimit as someLimit, + sortBy as sortBy, + times as times, + timesLimit as timesLimit, + timesSeries as timesSeries, + transform as transform, + unmemoize as unmemoize, + until as until, + waterfall as waterfall, + whilst as whilst, + + // Aliases + every as all, + some as any, + each as forEach, + eachSeries as forEachSeries, + eachLimit as forEachLimit, + eachOf as forEachOf, + eachOfSeries as forEachOfSeries, + eachOfLimit as forEachOfLimit, + reduce as inject, + reduce as foldl, + reduceRight as foldr, + filter as select, + filterLimit as selectLimit, + filterSeries as selectSeries, + asyncify as wrapSync +}; diff --git a/lib/internal/applyEach.js b/lib/internal/applyEach.js new file mode 100644 index 0000000..25bcce1 --- /dev/null +++ b/lib/internal/applyEach.js @@ -0,0 +1,22 @@ +'use strict'; + +import rest from 'lodash/rest'; + +export default function applyEach(eachfn) { + return rest(function(fns, args) { + var go = rest(function(args) { + var that = this; + var callback = args.pop(); + return eachfn(fns, function (fn, _, cb) { + fn.apply(that, args.concat([cb])); + }, + callback); + }); + if (args.length) { + return go.apply(this, args); + } + else { + return go; + } + }); +} diff --git a/lib/internal/concat.js b/lib/internal/concat.js new file mode 100644 index 0000000..482ad3a --- /dev/null +++ b/lib/internal/concat.js @@ -0,0 +1,13 @@ +'use strict'; + +export default 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); + }); +} diff --git a/lib/internal/consoleFunc.js b/lib/internal/consoleFunc.js new file mode 100644 index 0000000..fd8130d --- /dev/null +++ b/lib/internal/consoleFunc.js @@ -0,0 +1,23 @@ +'use strict'; + +import arrayEach from 'lodash/_arrayEach'; +import rest from 'lodash/rest'; + +export default function consoleFunc(name) { + return rest(function (fn, args) { + fn.apply(null, args.concat([rest(function (err, args) { + if (typeof console === 'object') { + if (err) { + if (console.error) { + console.error(err); + } + } + else if (console[name]) { + arrayEach(args, function (x) { + console[name](x); + }); + } + } + })])); + }); +} diff --git a/lib/internal/createTester.js b/lib/internal/createTester.js new file mode 100644 index 0000000..0e9e750 --- /dev/null +++ b/lib/internal/createTester.js @@ -0,0 +1,37 @@ +'use strict'; + +export default function _createTester(eachfn, check, getResult) { + return function(arr, limit, iterator, cb) { + function done(err) { + if (cb) { + if (err) { + cb(err); + } else { + cb(null, getResult(false, void 0)); + } + } + } + function iteratee(x, _, callback) { + if (!cb) return callback(); + iterator(x, function (err, v) { + if (cb) { + if (err) { + cb(err); + cb = iterator = false; + } else if (check(v)) { + cb(null, getResult(true, x)); + cb = iterator = false; + } + } + callback(); + }); + } + if (arguments.length > 3) { + eachfn(arr, limit, iteratee, done); + } else { + cb = iterator; + iterator = limit; + eachfn(arr, iteratee, done); + } + }; +} diff --git a/lib/internal/doParallel.js b/lib/internal/doParallel.js new file mode 100644 index 0000000..19c90fc --- /dev/null +++ b/lib/internal/doParallel.js @@ -0,0 +1,9 @@ +'use strict'; + +import eachOf from '../eachOf'; + +export default function doParallel(fn) { + return function (obj, iterator, callback) { + return fn(eachOf, obj, iterator, callback); + }; +} diff --git a/lib/internal/doParallelLimit.js b/lib/internal/doParallelLimit.js new file mode 100644 index 0000000..0c3bcf7 --- /dev/null +++ b/lib/internal/doParallelLimit.js @@ -0,0 +1,9 @@ +'use strict'; + +import eachOfLimit from './eachOfLimit'; + +export default function doParallelLimit(fn) { + return function (obj, limit, iterator, callback) { + return fn(eachOfLimit(limit), obj, iterator, callback); + }; +} diff --git a/lib/internal/doSeries.js b/lib/internal/doSeries.js new file mode 100644 index 0000000..c7f1d99 --- /dev/null +++ b/lib/internal/doSeries.js @@ -0,0 +1,9 @@ +'use strict'; + +import eachOfSeries from '../eachOfSeries'; + +export default function doSeries(fn) { + return function (obj, iterator, callback) { + return fn(eachOfSeries, obj, iterator, callback); + }; +} diff --git a/lib/internal/eachOfLimit.js b/lib/internal/eachOfLimit.js new file mode 100644 index 0000000..be1eab8 --- /dev/null +++ b/lib/internal/eachOfLimit.js @@ -0,0 +1,49 @@ +'use strict'; + +import noop from 'lodash/noop'; +import once from 'lodash/once'; + +import keyIterator from './keyIterator'; +import onlyOnce from './onlyOnce'; + +export default 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, onlyOnce(function (err) { + running -= 1; + if (err) { + callback(err); + errored = true; + } + else { + replenish(); + } + })); + } + })(); + }; +} diff --git a/lib/internal/filter.js b/lib/internal/filter.js new file mode 100644 index 0000000..8b1de9f --- /dev/null +++ b/lib/internal/filter.js @@ -0,0 +1,30 @@ +'use strict'; + +import arrayMap from 'lodash/_arrayMap'; +import property from 'lodash/_baseProperty'; + +export default function _filter(eachfn, arr, iterator, callback) { + var results = []; + eachfn(arr, function (x, index, callback) { + iterator(x, function (err, v) { + if (err) { + callback(err); + } + else { + if (v) { + results.push({index: index, value: x}); + } + callback(); + } + }); + }, function (err) { + if (err) { + callback(err); + } + else { + callback(null, arrayMap(results.sort(function (a, b) { + return a.index - b.index; + }), property('value'))); + } + }); +} diff --git a/lib/internal/findGetResult.js b/lib/internal/findGetResult.js new file mode 100644 index 0000000..3aeb07d --- /dev/null +++ b/lib/internal/findGetResult.js @@ -0,0 +1,5 @@ +'use strict'; + +export default function _findGetResult(v, x) { + return x; +} diff --git a/lib/internal/keyIterator.js b/lib/internal/keyIterator.js new file mode 100644 index 0000000..0e2b0c3 --- /dev/null +++ b/lib/internal/keyIterator.js @@ -0,0 +1,23 @@ +'use strict'; + +import isArrayLike from 'lodash/isArrayLike'; +import keys from 'lodash/keys'; + +export default function keyIterator(coll) { + var i = -1; + var len; + if (isArrayLike(coll)) { + len = coll.length; + return function next() { + i++; + return i < len ? i : null; + }; + } else { + var okeys = keys(coll); + len = okeys.length; + return function next() { + i++; + return i < len ? okeys[i] : null; + }; + } +} diff --git a/lib/internal/map.js b/lib/internal/map.js new file mode 100644 index 0000000..a7c19ac --- /dev/null +++ b/lib/internal/map.js @@ -0,0 +1,19 @@ +'use strict'; + +import isArrayLike from 'lodash/isArrayLike'; +import noop from 'lodash/noop'; +import once from 'lodash/once'; + +export default function _asyncMap(eachfn, arr, iterator, callback) { + callback = once(callback || noop); + arr = arr || []; + var results = isArrayLike(arr) ? [] : {}; + eachfn(arr, function (value, index, callback) { + iterator(value, function (err, v) { + results[index] = v; + callback(err); + }); + }, function (err) { + callback(err, results); + }); +} diff --git a/lib/internal/notId.js b/lib/internal/notId.js new file mode 100644 index 0000000..d936aab --- /dev/null +++ b/lib/internal/notId.js @@ -0,0 +1,5 @@ +'use strict'; + +export default function notId(v) { + return !v; +} diff --git a/lib/internal/onlyOnce.js b/lib/internal/onlyOnce.js new file mode 100644 index 0000000..f4241c8 --- /dev/null +++ b/lib/internal/onlyOnce.js @@ -0,0 +1,9 @@ +'use strict'; + +export default function onlyOnce(fn) { + return function() { + if (fn === null) throw new Error("Callback was already called."); + fn.apply(this, arguments); + fn = null; + }; +} diff --git a/lib/internal/parallel.js b/lib/internal/parallel.js new file mode 100644 index 0000000..52b0303 --- /dev/null +++ b/lib/internal/parallel.js @@ -0,0 +1,22 @@ +'use strict'; + +import noop from 'lodash/noop'; +import isArrayLike from 'lodash/isArrayLike'; +import rest from 'lodash/rest'; + +export default function _parallel(eachfn, tasks, callback) { + callback = callback || noop; + var results = isArrayLike(tasks) ? [] : {}; + + eachfn(tasks, function (task, key, callback) { + task(rest(function (err, args) { + if (args.length <= 1) { + args = args[0]; + } + results[key] = args; + callback(err); + })); + }, function (err) { + callback(err, results); + }); +} diff --git a/lib/internal/queue.js b/lib/internal/queue.js new file mode 100644 index 0000000..3e7eb1e --- /dev/null +++ b/lib/internal/queue.js @@ -0,0 +1,145 @@ +'use strict'; + +import arrayEach from 'lodash/_arrayEach'; +import arrayMap from 'lodash/_arrayMap'; +import isArray from 'lodash/isArray'; +import noop from 'lodash/noop'; +import property from 'lodash/_baseProperty'; + +import onlyOnce from './onlyOnce'; +import setImmediate from './setImmediate'; + +export default 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 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(); + } + if (q.tasks.length <= (q.concurrency - q.buffer) ) { + q.unsaturated(); + } + }); + setImmediate(q.process); + } + function _next(q, tasks) { + return function(){ + workers -= 1; + + var removed = false; + var args = arguments; + arrayEach(tasks, function (task) { + arrayEach(workersList, function (worker, index) { + if (worker === task && !removed) { + workersList.splice(index, 1); + removed = true; + } + }); + + task.callback.apply(task, args); + }); + if (q.tasks.length + workers === 0) { + q.drain(); + } + q.process(); + }; + } + + var workers = 0; + var workersList = []; + var q = { + tasks: [], + concurrency: concurrency, + payload: payload, + saturated: noop, + unsaturated:noop, + buffer: concurrency / 4, + 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 () { + while(!q.paused && workers < q.concurrency && q.tasks.length){ + + var tasks = q.payload ? + q.tasks.splice(0, q.payload) : + q.tasks.splice(0, q.tasks.length); + + var data = arrayMap(tasks, property('data')); + + if (q.tasks.length === 0) { + q.empty(); + } + workers += 1; + workersList.push(tasks[0]); + var cb = onlyOnce(_next(q, tasks)); + worker(data, cb); + } + }, + length: function () { + return q.tasks.length; + }, + running: function () { + return workers; + }, + workersList: function () { + return workersList; + }, + 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++) { + setImmediate(q.process); + } + } + }; + return q; +} diff --git a/lib/internal/reject.js b/lib/internal/reject.js new file mode 100644 index 0000000..708e810 --- /dev/null +++ b/lib/internal/reject.js @@ -0,0 +1,15 @@ +'use strict'; + +import filter from './filter'; + +export default function reject(eachfn, arr, iterator, callback) { + filter(eachfn, arr, function(value, cb) { + iterator(value, function(err, v) { + if (err) { + cb(err); + } else { + cb(null, !v); + } + }); + }, callback); +} diff --git a/lib/internal/setImmediate.js b/lib/internal/setImmediate.js new file mode 100644 index 0000000..c02ad71 --- /dev/null +++ b/lib/internal/setImmediate.js @@ -0,0 +1,19 @@ +'use strict'; + +var _setImmediate = typeof setImmediate === 'function' && setImmediate; + +var _delay; +if (_setImmediate) { + _delay = function(fn) { + // not a direct alias for IE10 compatibility + _setImmediate(fn); + }; +} else if (typeof process === 'object' && typeof process.nextTick === 'function') { + _delay = process.nextTick; +} else { + _delay = function(fn) { + setTimeout(fn, 0); + }; +} + +export default _delay; diff --git a/lib/internal/withoutIndex.js b/lib/internal/withoutIndex.js new file mode 100644 index 0000000..f163ff3 --- /dev/null +++ b/lib/internal/withoutIndex.js @@ -0,0 +1,7 @@ +'use strict'; + +export default function _withoutIndex(iterator) { + return function (value, index, callback) { + return iterator(value, callback); + }; +} diff --git a/lib/iterator.js b/lib/iterator.js new file mode 100644 index 0000000..568171a --- /dev/null +++ b/lib/iterator.js @@ -0,0 +1,17 @@ +'use strict'; + +export default 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); +} diff --git a/lib/log.js b/lib/log.js new file mode 100644 index 0000000..b581264 --- /dev/null +++ b/lib/log.js @@ -0,0 +1,5 @@ +'use strict'; + +import consoleFunc from './internal/consoleFunc'; + +export default consoleFunc('log'); diff --git a/lib/map.js b/lib/map.js new file mode 100644 index 0000000..2a8449c --- /dev/null +++ b/lib/map.js @@ -0,0 +1,6 @@ +'use strict'; + +import doParallel from './internal/doParallel'; +import map from './internal/map'; + +export default doParallel(map); diff --git a/lib/mapLimit.js b/lib/mapLimit.js new file mode 100644 index 0000000..642b4c6 --- /dev/null +++ b/lib/mapLimit.js @@ -0,0 +1,6 @@ +'use strict'; + +import doParallelLimit from './internal/doParallelLimit'; +import map from './internal/map'; + +export default doParallelLimit(map); diff --git a/lib/mapSeries.js b/lib/mapSeries.js new file mode 100644 index 0000000..bfcdaa2 --- /dev/null +++ b/lib/mapSeries.js @@ -0,0 +1,6 @@ +'use strict'; + +import map from './internal/map'; +import doSeries from './internal/doSeries'; + +export default doSeries(map); diff --git a/lib/memoize.js b/lib/memoize.js new file mode 100644 index 0000000..30b989c --- /dev/null +++ b/lib/memoize.js @@ -0,0 +1,37 @@ +'use strict'; + +import identity from 'lodash/identity'; +import rest from 'lodash/rest'; +import has from 'lodash/has'; + +import setImmediate from './internal/setImmediate'; + +export default function memoize(fn, hasher) { + var memo = Object.create(null); + var queues = Object.create(null); + hasher = hasher || identity; + var memoized = rest(function memoized(args) { + var callback = args.pop(); + var key = hasher.apply(null, args); + if (has(memo, key)) { + setImmediate(function() { + callback.apply(null, memo[key]); + }); + } else if (has(queues, key)) { + queues[key].push(callback); + } else { + queues[key] = [callback]; + fn.apply(null, args.concat([rest(function(args) { + memo[key] = args; + var q = queues[key]; + delete queues[key]; + for (var i = 0, l = q.length; i < l; i++) { + q[i].apply(null, args); + } + })])); + } + }); + memoized.memo = memo; + memoized.unmemoized = fn; + return memoized; +} diff --git a/lib/nextTick.js b/lib/nextTick.js new file mode 100644 index 0000000..b61a8b4 --- /dev/null +++ b/lib/nextTick.js @@ -0,0 +1,7 @@ +'use strict'; + +import setImmediate from './internal/setImmediate'; + +var nexTick = typeof process === 'object' && typeof process.nextTick === 'function' ? process.nextTick : setImmediate; + +export default nexTick; diff --git a/lib/parallel.js b/lib/parallel.js new file mode 100644 index 0000000..d3eec16 --- /dev/null +++ b/lib/parallel.js @@ -0,0 +1,8 @@ +'use strict'; + +import _parallel from './internal/parallel'; +import eachOf from './eachOf'; + +export default function parallel(tasks, cb) { + return _parallel(eachOf, tasks, cb); +} diff --git a/lib/parallelLimit.js b/lib/parallelLimit.js new file mode 100644 index 0000000..7e66bed --- /dev/null +++ b/lib/parallelLimit.js @@ -0,0 +1,8 @@ +'use strict'; + +import eachOfLimit from './internal/eachOfLimit'; +import parallel from './internal/parallel'; + +export default function parallelLimit(tasks, limit, cb) { + return parallel(eachOfLimit(limit), tasks, cb); +} diff --git a/lib/priorityQueue.js b/lib/priorityQueue.js new file mode 100644 index 0000000..6cc10ed --- /dev/null +++ b/lib/priorityQueue.js @@ -0,0 +1,72 @@ +'use strict'; + +import arrayEach from 'lodash/_arrayEach'; +import isArray from 'lodash/isArray'; +import noop from 'lodash/noop'; + +import setImmediate from './setImmediate'; + +import queue from './queue'; + +export default 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 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(); + } + setImmediate(q.process); + }); + } + + // Start with a normal queue + var q = 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; +} diff --git a/lib/queue.js b/lib/queue.js new file mode 100644 index 0000000..de2ac93 --- /dev/null +++ b/lib/queue.js @@ -0,0 +1,9 @@ +'use strict'; + +import queue from './internal/queue'; + +export default function (worker, concurrency) { + return queue(function (items, cb) { + worker(items[0], cb); + }, concurrency, 1); +} diff --git a/lib/reduce.js b/lib/reduce.js new file mode 100644 index 0000000..51b736a --- /dev/null +++ b/lib/reduce.js @@ -0,0 +1,14 @@ +'use strict'; + +import eachOfSeries from './eachOfSeries'; + +export default function reduce(arr, memo, iterator, cb) { + eachOfSeries(arr, function(x, i, cb) { + iterator(memo, x, function(err, v) { + memo = v; + cb(err); + }); + }, function(err) { + cb(err, memo); + }); +} diff --git a/lib/reduceRight.js b/lib/reduceRight.js new file mode 100644 index 0000000..730e320 --- /dev/null +++ b/lib/reduceRight.js @@ -0,0 +1,10 @@ +'use strict'; + +import reduce from './reduce'; + +var slice = Array.prototype.slice; + +export default function reduceRight (arr, memo, iterator, cb) { + var reversed = slice.call(arr).reverse(); + reduce(reversed, memo, iterator, cb); +} diff --git a/lib/reject.js b/lib/reject.js new file mode 100644 index 0000000..fb5b87f --- /dev/null +++ b/lib/reject.js @@ -0,0 +1,6 @@ +'use strict'; + +import reject from './internal/reject'; +import doParallel from './internal/doParallel'; + +export default doParallel(reject); diff --git a/lib/rejectLimit.js b/lib/rejectLimit.js new file mode 100644 index 0000000..7cefed6 --- /dev/null +++ b/lib/rejectLimit.js @@ -0,0 +1,6 @@ +'use strict'; + +import reject from './internal/reject'; +import doParallelLimit from './internal/doParallelLimit'; + +export default doParallelLimit(reject); diff --git a/lib/rejectSeries.js b/lib/rejectSeries.js new file mode 100644 index 0000000..e02adea --- /dev/null +++ b/lib/rejectSeries.js @@ -0,0 +1,6 @@ +'use strict'; + +import reject from './internal/reject'; +import doSeries from './internal/doSeries'; + +export default doSeries(reject); diff --git a/lib/retry.js b/lib/retry.js new file mode 100644 index 0000000..506a424 --- /dev/null +++ b/lib/retry.js @@ -0,0 +1,77 @@ +'use strict'; + +import series from './series'; + +export default function retry(times, task, callback) { + var DEFAULT_TIMES = 5; + var DEFAULT_INTERVAL = 0; + + var attempts = []; + + var opts = { + times: DEFAULT_TIMES, + interval: DEFAULT_INTERVAL + }; + + function parseTimes(acc, t) { + if (typeof t === 'number') { + acc.times = parseInt(t, 10) || DEFAULT_TIMES; + } else if (typeof t === 'object') { + acc.times = parseInt(t.times, 10) || DEFAULT_TIMES; + acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL; + } else { + throw new Error('Unsupported argument type for \'times\': ' + typeof t); + } + } + + var length = arguments.length; + if (length < 1 || length > 3) { + throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)'); + } else if (length <= 2 && typeof times === 'function') { + callback = task; + task = times; + } + if (typeof times !== 'function') { + parseTimes(opts, times); + } + opts.callback = callback; + opts.task = task; + + function wrappedTask(wrappedCallback, wrappedResults) { + function retryAttempt(task, finalAttempt) { + return function(seriesCallback) { + task(function(err, result) { + seriesCallback(!err || finalAttempt, { + err: err, + result: result + }); + }, wrappedResults); + }; + } + + function retryInterval(interval) { + return function(seriesCallback) { + setTimeout(function() { + seriesCallback(null); + }, interval); + }; + } + + while (opts.times) { + + var finalAttempt = !(opts.times -= 1); + attempts.push(retryAttempt(opts.task, finalAttempt)); + if (!finalAttempt && opts.interval > 0) { + attempts.push(retryInterval(opts.interval)); + } + } + + series(attempts, function(done, data) { + data = data[data.length - 1]; + (wrappedCallback || opts.callback)(data.err, data.result); + }); + } + + // If a callback is passed, run this as a controll flow + return opts.callback ? wrappedTask() : wrappedTask; +} diff --git a/lib/seq.js b/lib/seq.js new file mode 100644 index 0000000..966e751 --- /dev/null +++ b/lib/seq.js @@ -0,0 +1,28 @@ +'use strict'; + +import noop from 'lodash/noop'; +import rest from 'lodash/rest'; +import reduce from './reduce'; + +export default function seq( /* functions... */ ) { + var fns = arguments; + return rest(function(args) { + var that = this; + + var cb = args[args.length - 1]; + if (typeof cb == 'function') { + args.pop(); + } else { + cb = noop; + } + + reduce(fns, args, function(newargs, fn, cb) { + fn.apply(that, newargs.concat([rest(function(err, nextargs) { + cb(err, nextargs); + })])); + }, + function(err, results) { + cb.apply(that, [err].concat(results)); + }); + }); +} diff --git a/lib/series.js b/lib/series.js new file mode 100644 index 0000000..bd8e15d --- /dev/null +++ b/lib/series.js @@ -0,0 +1,8 @@ +'use strict'; + +import parallel from './internal/parallel'; +import eachOfSeries from './eachOfSeries'; + +export default function series(tasks, cb) { + return parallel(eachOfSeries, tasks, cb); +} diff --git a/lib/setImmediate.js b/lib/setImmediate.js new file mode 100644 index 0000000..05d9555 --- /dev/null +++ b/lib/setImmediate.js @@ -0,0 +1,5 @@ +'use strict'; + +import setImmediate from './internal/setImmediate'; + +export default setImmediate; diff --git a/lib/some.js b/lib/some.js new file mode 100644 index 0000000..23b884b --- /dev/null +++ b/lib/some.js @@ -0,0 +1,8 @@ +'use strict'; + +import identity from 'lodash/identity'; + +import createTester from './internal/createTester'; +import eachOf from './eachOf'; + +export default createTester(eachOf, Boolean, identity); diff --git a/lib/someLimit.js b/lib/someLimit.js new file mode 100644 index 0000000..498a262 --- /dev/null +++ b/lib/someLimit.js @@ -0,0 +1,7 @@ +'use strict'; + +import createTester from './internal/createTester'; +import eachOfLimit from './eachOfLimit'; +import identity from 'lodash/identity'; + +export default createTester(eachOfLimit, Boolean, identity); diff --git a/lib/sortBy.js b/lib/sortBy.js new file mode 100644 index 0000000..4f14823 --- /dev/null +++ b/lib/sortBy.js @@ -0,0 +1,23 @@ +'use strict'; + +import arrayMap from 'lodash/_arrayMap'; +import property from 'lodash/_baseProperty'; + +import map from './map'; + +export default function sortBy (arr, iterator, cb) { + map(arr, function (x, cb) { + iterator(x, function (err, criteria) { + if (err) return cb(err); + cb(null, {value: x, criteria: criteria}); + }); + }, function (err, results) { + if (err) return cb(err); + cb(null, arrayMap(results.sort(comparator), property('value'))); + }); + + function comparator(left, right) { + var a = left.criteria, b = right.criteria; + return a < b ? -1 : a > b ? 1 : 0; + } +} diff --git a/lib/times.js b/lib/times.js new file mode 100644 index 0000000..72e844c --- /dev/null +++ b/lib/times.js @@ -0,0 +1,8 @@ +'use strict'; + +import map from './map'; +import range from 'lodash/_baseRange'; + +export default function (count, iterator, callback) { + map(range(0, count, 1), iterator, callback); +} diff --git a/lib/timesLimit.js b/lib/timesLimit.js new file mode 100644 index 0000000..1ea7313 --- /dev/null +++ b/lib/timesLimit.js @@ -0,0 +1,8 @@ +'use strict'; + +import mapLimit from './mapLimit'; +import range from 'lodash/_baseRange'; + +export default function timeLimit(count, limit, iterator, cb) { + return mapLimit(range(0, count, 1), limit, iterator, cb); +} diff --git a/lib/timesSeries.js b/lib/timesSeries.js new file mode 100644 index 0000000..7927270 --- /dev/null +++ b/lib/timesSeries.js @@ -0,0 +1,8 @@ +'use strict'; + +import mapSeries from './mapSeries'; +import range from 'lodash/_baseRange'; + +export default function (count, iterator, callback) { + mapSeries(range(0, count, 1), iterator, callback); +} diff --git a/lib/transform.js b/lib/transform.js new file mode 100644 index 0000000..3dddae8 --- /dev/null +++ b/lib/transform.js @@ -0,0 +1,19 @@ +'use strict'; + +import isArray from 'lodash/isArray'; + +import eachOf from './eachOf'; + +export default function transform (arr, memo, iterator, callback) { + if (arguments.length === 3) { + callback = iterator; + iterator = memo; + memo = isArray(arr) ? [] : {}; + } + + eachOf(arr, function(v, k, cb) { + iterator(memo, v, k, cb); + }, function(err) { + callback(err, memo); + }); +} diff --git a/lib/unmemoize.js b/lib/unmemoize.js new file mode 100644 index 0000000..d652e7b --- /dev/null +++ b/lib/unmemoize.js @@ -0,0 +1,7 @@ +'use strict'; + +export default function unmemoize(fn) { + return function () { + return (fn.unmemoized || fn).apply(null, arguments); + }; +} diff --git a/lib/until.js b/lib/until.js new file mode 100644 index 0000000..f9ed2fd --- /dev/null +++ b/lib/until.js @@ -0,0 +1,9 @@ +'use strict'; + +import whilst from './whilst'; + +export default function until(test, iterator, cb) { + return whilst(function() { + return !test.apply(this, arguments); + }, iterator, cb); +} diff --git a/lib/waterfall.js b/lib/waterfall.js new file mode 100644 index 0000000..8867c87 --- /dev/null +++ b/lib/waterfall.js @@ -0,0 +1,32 @@ +'use strict'; + +import isArray from 'lodash/isArray'; +import noop from 'lodash/noop'; +import once from 'lodash/once'; +import rest from 'lodash/rest'; + +import ensureAsync from './ensureAsync'; +import iterator from './iterator'; + +export default function(tasks, cb) { + cb = once(cb || noop); + if (!isArray(tasks)) return cb(new Error('First argument to waterfall must be an array of functions')); + if (!tasks.length) return cb(); + + function wrapIterator(iterator) { + return rest(function(err, args) { + if (err) { + cb.apply(null, [err].concat(args)); + } else { + var next = iterator.next(); + if (next) { + args.push(wrapIterator(next)); + } else { + args.push(cb); + } + ensureAsync(iterator).apply(null, args); + } + }); + } + wrapIterator(iterator(tasks))(); +} diff --git a/lib/whilst.js b/lib/whilst.js new file mode 100644 index 0000000..feaec00 --- /dev/null +++ b/lib/whilst.js @@ -0,0 +1,15 @@ +'use strict'; + +import noop from 'lodash/noop'; +import rest from 'lodash/rest'; + +export default function whilst(test, iterator, cb) { + cb = cb || noop; + if (!test()) return cb(null); + var next = rest(function(err, args) { + if (err) return cb(err); + if (test.apply(this, args)) return iterator(next); + cb.apply(null, [null].concat(args)); + }); + iterator(next); +} diff --git a/mocha_test/compose.js b/mocha_test/compose.js index 85306a5..5be9192 100644 --- a/mocha_test/compose.js +++ b/mocha_test/compose.js @@ -1,4 +1,4 @@ -var async = require('../lib/async'); +var async = require('../lib'); var expect = require('chai').expect; describe('compose', function(){ diff --git a/mocha_test/forever.js b/mocha_test/forever.js index 970c422..ec21ed7 100644 --- a/mocha_test/forever.js +++ b/mocha_test/forever.js @@ -1,4 +1,4 @@ -var async = require('../lib/async'); +var async = require('../lib'); var expect = require('chai').expect; var isBrowser = require('./support/is_browser'); diff --git a/mocha_test/queue.js b/mocha_test/queue.js new file mode 100644 index 0000000..fab423a --- /dev/null +++ b/mocha_test/queue.js @@ -0,0 +1,49 @@ +var async = require('../lib'); +var expect = require('chai').expect; + + +describe('queue', function(){ + context('q.unsaturated(): ',function() { + it('should have a default buffer property that equals 25% of the concurrenct rate', function(done){ + var q = async.queue(function(task, cb) { + // nop + calls.push('process ' + task); + async.setImmediate(cb); + }, 10); + expect(q.buffer).to.equal(2.5); + done(); + }); + it('should allow a user to change the buffer property', function(done){ + var q = async.queue(function(task, cb) { + // nop + calls.push('process ' + task); + async.setImmediate(cb); + }, 10); + q.buffer = 4; + expect(q.buffer).to.not.equal(2.5); + expect(q.buffer).to.equal(4); + done(); + }); + it('should call the unsaturated callback if tasks length is less than concurrency minus buffer', function(done){ + var calls = []; + var q = async.queue(function(task, cb) { + // nop + calls.push('process ' + task); + async.setImmediate(cb); + }, 10); + q.unsaturated = function() { + calls.push('unsaturated'); + }; + q.empty = function() { + expect(calls.indexOf('unsaturated')).to.be.above(-1); + done(); + }; + q.push('foo0', function () {calls.push('foo0 cb');}); + q.push('foo1', function () {calls.push('foo1 cb');}); + q.push('foo2', function () {calls.push('foo2 cb');}); + q.push('foo3', function () {calls.push('foo3 cb');}); + q.push('foo4', function () {calls.push('foo4 cb');}); + }); + }); +}); + diff --git a/package.json b/package.json index 0758459..76f9fac 100644 --- a/package.json +++ b/package.json @@ -1,20 +1,9 @@ { "name": "async", "description": "Higher-order functions and common patterns for asynchronous code", - "main": "lib/async.js", - "files": [ - "lib", - "dist/async.js", - "dist/async.min.js" - ], + "version": "2.0.0-alpha", + "main": "dist/async.js", "author": "Caolan McMahon", - "version": "1.5.2", - "keywords": [ - "async", - "callback", - "utility", - "module" - ], "repository": { "type": "git", "url": "https://github.com/caolan/async.git" @@ -22,13 +11,30 @@ "bugs": { "url": "https://github.com/caolan/async/issues" }, - "license": "MIT", + "keywords": [ + "async", + "callback", + "module", + "utility" + ], + "dependencies": { + "lodash": "^4.3.0", + "lodash-es": "^4.3.0" + }, "devDependencies": { + "babel-cli": "^6.3.17", + "babel-core": "^6.3.26", + "babel-plugin-add-module-exports": "~0.1.2", + "babel-plugin-transform-es2015-modules-commonjs": "^6.3.16", + "babel-preset-es2015": "^6.3.13", + "babelify": "^7.2.0", "benchmark": "bestiejs/benchmark.js", "bluebird": "^2.9.32", "chai": "^3.1.0", "coveralls": "^2.11.2", "es6-promise": "^2.3.0", + "fs-extra": "^0.26.3", + "gulp": "~3.9.0", "jscs": "^1.13.1", "jshint": "~2.8.0", "karma": "^0.13.2", @@ -36,22 +42,36 @@ "karma-firefox-launcher": "^0.1.6", "karma-mocha": "^0.2.0", "karma-mocha-reporter": "^1.0.2", - "lodash": "^3.9.0", - "mkdirp": "~0.5.1", "mocha": "^2.2.5", "native-promise-only": "^0.8.0-a", "nodeunit": ">0.0.0", "nyc": "^2.1.0", + "recursive-readdir": "^1.3.0", + "rimraf": "^2.5.0", + "rollup": "^0.25.0", + "rollup-plugin-npm": "~1.3.0", "rsvp": "^3.0.18", "semver": "^4.3.6", "uglify-js": "~2.4.0", - "xyz": "^0.5.0", + "vinyl-buffer": "~1.0.0", + "vinyl-source-stream": "~1.1.0", "yargs": "~3.9.1" }, + "scripts": { + "coverage": "nyc npm test && nyc report", + "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls", + "lint": "jshint lib/ test/ mocha_test/ perf/memory.js perf/suites.js perf/benchmark.js support/ gulpfile.js karma.conf.js && jscs lib/ test/ mocha_test/ perf/memory.js perf/suites.js perf/benchmark.js support/ gulpfile.js karma.conf.js", + "mocha-browser-test": "karma start", + "mocha-node-test": "mocha mocha_test/ --compilers js:babel-core/register", + "mocha-test": "npm run mocha-node-test && npm run mocha-browser-test", + "nodeunit-test": "nodeunit test/test-async.js", + "test": "npm run-script lint && npm run nodeunit-test && npm run mocha-test" + }, + "license": "MIT", "jam": { - "main": "lib/async.js", + "main": "dist/async.js", "include": [ - "lib/async.js", + "dist/async.js", "README.md", "LICENSE" ], @@ -59,21 +79,11 @@ "Utilities" ] }, - "scripts": { - "mocha-node-test": "mocha mocha_test/", - "mocha-browser-test": "karma start", - "mocha-test": "npm run mocha-node-test && npm run mocha-browser-test", - "nodeunit-test": "nodeunit test/test-async.js", - "test": "npm run-script lint && npm run nodeunit-test && npm run mocha-test", - "lint": "jshint lib test perf && jscs lib test perf", - "coverage": "nyc npm test && nyc report", - "coveralls": "nyc npm test && nyc report --reporter=text-lcov | coveralls" - }, "spm": { - "main": "lib/async.js" + "main": "dist/async.js" }, "volo": { - "main": "lib/async.js", + "main": "dist/async.js", "ignore": [ "**/.*", "node_modules", @@ -82,4 +92,4 @@ "tests" ] } -} +}
\ No newline at end of file diff --git a/support/build.test.js b/support/build.test.js new file mode 100644 index 0000000..141909a --- /dev/null +++ b/support/build.test.js @@ -0,0 +1,96 @@ +// Smoke test for the CJS build +var methods = ["each", "waterfall", "queue", "eachSeries"]; +var expect = require('chai').expect; +var rollup = require('rollup').rollup; +var rollupPluginNpm = require('rollup-plugin-npm'); +var fs = require('fs'); +var exec = require('child_process').exec; + +describe("async main", function() { + var async; + + before(function() { + async = require("../build/"); + }); + + it("should have methods", function() { + methods.forEach(function(methodName) { + expect(async[methodName]).to.be.a("function"); + }); + }); +}); + +describe("async umd", function() { + var async; + + before(function() { + async = require("../build/dist/async.js"); + }); + + it("should have methods", function() { + methods.forEach(function(methodName) { + expect(async[methodName]).to.be.a("function"); + }); + }); +}); + +describe("async umd minified", function() { + var async; + + before(function() { + async = require("../build/dist/async.min.js"); + }); + + it("should have methods", function() { + methods.forEach(function(methodName) { + expect(async[methodName]).to.be.a("function"); + }); + }); +}); + +methods.forEach(function (methodName) { + describe("async." + methodName, function () { + var method; + before(function () { + method = require("../build/" + methodName); + }); + + it("should require the individual method", function() { + expect(method).to.be.a("function"); + }); + }); +}); + +describe("ES Modules", function () { + var tmpDir = __dirname + "/../tmp"; + var buildFile = __dirname + "/../tmp/es.test.js"; + + before(function (done) { + if (fs.existsSync(tmpDir)) { + return done(); + } + fs.mkdir(tmpDir, done); + }); + + before(function () { + return rollup({ + entry: __dirname + "/es.test.js", + plugins: [ + rollupPluginNpm() + ] + }).then(function (bundle) { + return bundle.write({ + format: "umd", + dest: buildFile + }); + }); + }); + + it("should build a successful bundle", function (done) { + exec("node " + buildFile, function (err, stdout) { + if (err) { return done(err); } + expect(stdout).to.match(/42/); + done(); + }); + }); +}); diff --git a/support/build/aggregate-build.js b/support/build/aggregate-build.js new file mode 100644 index 0000000..61833b8 --- /dev/null +++ b/support/build/aggregate-build.js @@ -0,0 +1,20 @@ +import compileModules from './compile-modules'; +import rollup from 'rollup'; +import rimraf from 'rimraf/rimraf'; + +export default function buildBundle(options) { + function bundle() { + rollup.rollup({ + entry: options.outpath + '/index.js' + }).then(function ( bundle ) { + bundle.write({ + format: options.format, + moduleName: 'async', + dest: options.outfile + }); + rimraf.sync(options.outpath); + }).catch(console.error); + } + + compileModules(bundle, options); +} diff --git a/support/build/aggregate-bundle.js b/support/build/aggregate-bundle.js new file mode 100644 index 0000000..482bfcd --- /dev/null +++ b/support/build/aggregate-bundle.js @@ -0,0 +1,9 @@ +import aggregateBuild from './aggregate-build'; + +aggregateBuild({ + es6: true, + outpath:'build/build-modules-es6', + outfile: 'build/dist/async.js', + format: 'umd', + lodashRename: true +}); diff --git a/support/build/aggregate-cjs.js b/support/build/aggregate-cjs.js new file mode 100644 index 0000000..077ca49 --- /dev/null +++ b/support/build/aggregate-cjs.js @@ -0,0 +1,9 @@ +import aggregateBuild from './aggregate-build'; + +aggregateBuild({ + es6: true, + outpath:'build/build-modules-es6', + outfile: 'build/index.js', + format: 'cjs', + lodashRename: false +}); diff --git a/support/build/compile-modules.js b/support/build/compile-modules.js new file mode 100644 index 0000000..16aa1ca --- /dev/null +++ b/support/build/compile-modules.js @@ -0,0 +1,45 @@ +import async from '../../lib'; +import {transformFile} from 'babel-core'; +import _ from 'lodash'; +import readdirR from 'recursive-readdir'; +import pluginCJS from 'babel-plugin-transform-es2015-modules-commonjs'; +import pluginModuleExports from 'babel-plugin-add-module-exports'; +import pluginLodashImportRename from './plugin-lodash-import-rename'; +import {join as joinPath} from 'path'; +import fs from 'fs-extra'; + +export default function(cb, options) { + options = _.defaults({}, options, { + path:'lib/', + outpath:'build', + es6: false, + lodashRename: false + }); + let plugins = []; + + if (options.lodashRename) { + plugins.push(pluginLodashImportRename); + } + if (!options.es6) { + plugins.push(pluginModuleExports); + plugins.push(pluginCJS); + } + + readdirR(options.path, [], function(err, files) { + fs.emptyDirSync(options.outpath); + fs.emptyDirSync(joinPath(options.outpath, 'internal')); + async.each(files, (file, callback) => { + let filename = file.startsWith(options.path) ? + file.slice(options.path.length) : + file; + + transformFile(file, { + babelrc: false, + plugins: plugins + }, function(err, content) { + let outpath = joinPath(options.outpath, filename); + fs.writeFile(outpath, content.code, callback); + }); + }, cb); + }); +} diff --git a/support/build/modules-cjs.js b/support/build/modules-cjs.js new file mode 100644 index 0000000..09632ff --- /dev/null +++ b/support/build/modules-cjs.js @@ -0,0 +1,3 @@ +import compileModules from './compile-modules'; + +compileModules(function() {}, {es6: false}); diff --git a/support/build/plugin-lodash-import-rename.js b/support/build/plugin-lodash-import-rename.js new file mode 100644 index 0000000..6fe893b --- /dev/null +++ b/support/build/plugin-lodash-import-rename.js @@ -0,0 +1,24 @@ +import _ from 'lodash'; +import {dirname, sep} from 'path'; + +export default function() { + return { + visitor: { + + ImportDeclaration(path, mapping) { + let {node} = path; + let {value} = node.source; + + if (/\blodash\b/.test(value)) { + let f = mapping.file.opts.filename; + let dir = dirname(f).split(sep); + let relative = _.repeat('../', dir.length + 1); + + node.source.value = value.replace( + /\blodash\b/, + relative + 'node_modules/lodash-es'); + } + } + } + }; +} diff --git a/support/es.test.js b/support/es.test.js new file mode 100644 index 0000000..9f7fd5e --- /dev/null +++ b/support/es.test.js @@ -0,0 +1,21 @@ +// simple async example to test ES module build output + +import {waterfall as waterfall} from "../build-es/index"; +import async from "../build-es/index"; +import constant from "../build-es/constant"; + +waterfall([ + constant(42), + function (val, next) { + async.setImmediate(function () { + next(null, val); + }); + } +], function (err, result) { + if (err) { throw err; } + console.log(result); + if (result !== 42) { + console.log("fail"); + process.exit(1); + } +}); diff --git a/support/module_template.md b/support/module_template.md new file mode 100644 index 0000000..858f97a --- /dev/null +++ b/support/module_template.md @@ -0,0 +1,13 @@ +# async.<%= name %> + + +[](https://travis-ci.org/async-js/async.<%= name %>) +[](https://david-dm.org/async-js/async.<%= name %>) +[](https://david-dm.org/async-js/async.<%= name %>#info=devDependencies) +[](https://www.npmjs.org/package/<%= name %>) + +> [async#<%= name %>](https://github.com/async-js/async#<%= name %>) method as module. + +## License + +MIT © [async-js](https://github.com/async-js) diff --git a/support/sync-cjs-package.js b/support/sync-cjs-package.js new file mode 100755 index 0000000..7db78b0 --- /dev/null +++ b/support/sync-cjs-package.js @@ -0,0 +1,10 @@ +#!/usr/bin/env node + +var fs = require('fs'); +var json = JSON.parse(fs.readFileSync(__dirname + "/../package.json"), "utf8"); + +delete json.dependencies["lodash-es"]; + +process.stdout.write(JSON.stringify(json, null, 2)); + + diff --git a/support/sync-es-package.js b/support/sync-es-package.js new file mode 100755 index 0000000..bb72f47 --- /dev/null +++ b/support/sync-es-package.js @@ -0,0 +1,15 @@ +#!/usr/bin/env node + +var fs = require('fs'); +var json = JSON.parse(fs.readFileSync(__dirname + "/../package.json"), "utf8"); + +json.name = "async-es"; +json.main = "index.js"; +delete json.dependencies["lodash"]; +delete json.volo; +delete json.spm; +delete json.jam; + +process.stdout.write(JSON.stringify(json, null, 2)); + + diff --git a/support/sync-package-managers.js b/support/sync-package-managers.js index 28c22e9..d01d17c 100755 --- a/support/sync-package-managers.js +++ b/support/sync-package-managers.js @@ -10,40 +10,42 @@ var _ = require('lodash'); var packageJson = require('../package.json'); var IGNORES = ['**/.*', 'node_modules', 'bower_components', 'test', 'tests']; -var INCLUDES = ['lib/async.js', 'README.md', 'LICENSE']; +var INCLUDES = ['dist/async.js', 'README.md', 'LICENSE']; var REPOSITORY_NAME = 'caolan/async'; packageJson.jam = { - main: packageJson.main, - include: INCLUDES, - categories: ['Utilities'] + main: packageJson.main, + include: INCLUDES, + categories: ['Utilities'] }; packageJson.spm = { - main: packageJson.main + main: packageJson.main }; packageJson.volo = { - main: packageJson.main, - ignore: IGNORES + main: packageJson.main, + ignore: IGNORES }; var bowerSpecific = { - moduleType: ['amd', 'globals', 'node'], - ignore: IGNORES, - authors: [packageJson.author] + moduleType: ['amd', 'globals', 'node'], + ignore: IGNORES, + authors: [packageJson.author] }; var bowerInclude = ['name', 'description', 'main', 'keywords', - 'license', 'homepage', 'repository', 'devDependencies']; + 'license', 'homepage', 'repository', 'devDependencies' +]; var componentSpecific = { - repository: REPOSITORY_NAME, - scripts: [packageJson.main] + repository: REPOSITORY_NAME, + scripts: [packageJson.main] }; var componentInclude = ['name', 'description', 'version', 'keywords', - 'license', 'main']; + 'license', 'main' +]; var bowerJson = _.merge({}, _.pick(packageJson, bowerInclude), bowerSpecific); var componentJson = _.merge({}, _.pick(packageJson, componentInclude), componentSpecific); diff --git a/support/xyz.sh b/support/xyz.sh new file mode 100755 index 0000000..8fd8d2d --- /dev/null +++ b/support/xyz.sh @@ -0,0 +1,171 @@ +#!/usr/bin/env bash + +# Slightly modified version of xyz that publishes from the build directory, +# rather than the root. + +set -e + +usage=" +Usage: xyz [options] + +Publish a new version of the npm package in the current working directory. +This involves updating the version number in package.json, committing this +change (along with any staged changes), tagging the commit, pushing to the +remote git repository, and finally publishing to the public npm registry. + +If present, component.json is updated along with package.json. + +Options: + +-b --branch <name> + Specify the branch from which new versions must be published. + xyz aborts if run from any other branch to prevent accidental + publication of feature branches. 'master' is assumed if this + option is omitted. + +-i --increment <level> + Specify the level of the current version number to increment. + Valid levels: 'major', 'minor', 'patch', 'premajor', 'preminor', + 'prepatch', and 'prerelease'. 'patch' is assumed if this option + is omitted. + +-m --message <template> + Specify the format of the commit (and tag) message. + 'X.Y.Z' acts as a placeholder for the version number. + 'Version X.Y.Z' is assumed if this option is omitted. + +-r --repo <repository> + Specify the remote repository to which to 'git push'. + The value must be either a URL or the name of a remote. + The latter is not recommended: it relies on local state. + 'origin' is assumed if this option is omitted. + +-s --script <path> + Specify a script to be run after the confirmation prompt. + It is passed VERSION and PREVIOUS_VERSION as environment + variables. xyz aborts if the script's exit code is not 0. + +-t --tag <template> + Specify the format of the tag name. As with --message, + 'X.Y.Z' acts as a placeholder for the version number. + 'vX.Y.Z' is assumed if this option is omitted. + +--dry-run + Print the commands without evaluating them. + +-v --version + Print xyz's version number and exit. +" + +# http://stackoverflow.com/a/246128/312785 +path="${BASH_SOURCE[0]}" +while [ -h "$path" ] ; do + dir="$(cd -P "$(dirname "$path")" && pwd)" + path="$(readlink "$path")" + [[ $path == /* ]] || path="$dir/$path" +done +dir="$(cd -P "$(dirname "$path")" && pwd)" + +branch=master +increment=patch +message_template='Version X.Y.Z' +repo=origin +declare -a scripts +tag_template=vX.Y.Z +dry_run=false + +while (($# > 0)) ; do + option="$1" + shift + + case "$option" in + -h|--help) + echo "$usage" + exit + ;; + -v|--version) + node -p "require('$dir/package.json').version" + exit + ;; + -b|--branch) branch="$1" ; shift ;; + -i|--increment) increment="$1" ; shift ;; + -m|--message) message_template="$1" ; shift ;; + -r|--repo) repo="$1" ; shift ;; + -s|--script) scripts+=("$1") ; shift ;; + -t|--tag) tag_template="$1" ; shift ;; + --dry-run) dry_run=true ;; + *) + echo "Unrecognized option $option" >&2 + exit 1 + esac +done + +case "$increment" in + major|minor|patch|premajor|preminor|prepatch|prerelease) ;; + *) echo "Invalid --increment" >&2 ; exit 1 ;; +esac + +[[ $(git rev-parse --abbrev-ref HEAD) == $branch ]] || + (echo "Current branch does not match specified --branch" >&2 ; exit 1) + +git diff-files --quiet || + (echo "Working directory contains unstaged changes" >&2 ; exit 1) + +name=$(node -p "require('./package.json').name" 2>/dev/null) || + (echo "Cannot read package name" >&2 ; exit 1) + +version=$(node -p "require('./package.json').version" 2>/dev/null) || + (echo "Cannot read package version" >&2 ; exit 1) + +next_version=$("$dir/node_modules/.bin/semver" -i "$increment" "$version") || + (echo "Cannot increment version number" >&2 ; exit 1) + +message="${message_template//X.Y.Z/$next_version}" +tag="${tag_template//X.Y.Z/$next_version}" + +bold=$(tput bold) +reset=$(tput sgr0) +printf "Current version is ${bold}${version}${reset}. " +printf "Press [enter] to publish ${bold}${name}@${next_version}${reset}." +read -s # suppress user input +echo # output \n since [enter] output was suppressed + +run() { + echo "$1" + if [[ $dry_run == false ]] ; then + eval "$1" + fi +} + +# Prune before running tests to catch dependencies that have been +# installed but not specified in the project's `package.json` file. + +run "npm prune" +run "npm test" + +for script in "${scripts[@]}" ; do + [[ $script == /* ]] || script="$(pwd)/$script" + run "VERSION=$next_version PREVIOUS_VERSION=$version '$script'" +done + +inc() { + if [[ -f "$1" ]] ; then + run "node -e '$(echo " + var o = require('./$1'); o.version = '$next_version'; + require('fs').writeFileSync('./$1', JSON.stringify(o, null, 2) + '\n'); + " | tr "'" '"' | tr -d "\n" | tr -s " " | sed -e "s/^ *//" -e "s/ *$//")'" + run "git add '$1'" + fi +} + +inc package.json + +run "./sync-package-managers.js" +run "git add --force *.json" + +run "git commit --message '$message'" +run "git tag --annotate '$tag' --message '$message'" +run "git push '$repo' 'refs/heads/$branch' 'refs/tags/$tag'" + +#cd build/ +#run "npm pack" diff --git a/test/test-async.js b/test/test-async.js index e6fe8ef..20bf43f 100755 --- a/test/test-async.js +++ b/test/test-async.js @@ -3,7 +3,8 @@ * adding a new test, consider creating a new spec file in mocha_tests/ */ -var async = require('../lib/async'); +require('babel-core/register'); +var async = require('../lib'); if (!Function.prototype.bind) { Function.prototype.bind = function (thisArg) { @@ -38,14 +39,14 @@ function mapIterator(call_order, x, callback) { function filterIterator(x, callback) { setTimeout(function(){ - callback(x % 2); + callback(null, x % 2); }, x*25); } function detectIterator(call_order, x, callback) { setTimeout(function(){ call_order.push(x); - callback(x == 2); + callback(null, x == 2); }, x*25); } @@ -291,6 +292,7 @@ exports['seq without callback'] = function (test) { }; exports['auto'] = function(test){ + test.expect(2); var callOrder = []; async.auto({ task1: ['task2', function(callback){ @@ -2159,7 +2161,8 @@ exports['transform error'] = function(test){ }; exports['filter'] = function(test){ - async.filter([3,1,2], filterIterator, function(results){ + async.filter([3,1,2], filterIterator, function(err, results){ + test.equals(err, null); test.same(results, [3,1]); test.done(); }); @@ -2168,16 +2171,28 @@ exports['filter'] = function(test){ exports['filter original untouched'] = function(test){ var a = [3,1,2]; async.filter(a, function(x, callback){ - callback(x % 2); - }, function(results){ + callback(null, x % 2); + }, function(err, results){ + test.equals(err, null); test.same(results, [3,1]); test.same(a, [3,1,2]); test.done(); }); }; +exports['filter error'] = function(test){ + async.filter([3,1,2], function(x, callback){ + callback('error'); + } , function(err, results){ + test.equals(err, 'error'); + test.equals(results, null); + test.done(); + }); +}; + exports['filterSeries'] = function(test){ - async.filterSeries([3,1,2], filterIterator, function(results){ + async.filterSeries([3,1,2], filterIterator, function(err, results){ + test.equals(err, null); test.same(results, [3,1]); test.done(); }); @@ -2194,28 +2209,42 @@ exports['selectSeries alias'] = function(test){ }; exports['reject'] = function(test){ - test.expect(1); - async.reject([3,1,2], filterIterator, function(results){ + test.expect(2); + async.reject([3,1,2], filterIterator, function(err, results){ + test.equals(err, null); test.same(results, [2]); test.done(); }); }; exports['reject original untouched'] = function(test){ - test.expect(2); + test.expect(3); var a = [3,1,2]; async.reject(a, function(x, callback){ - callback(x % 2); - }, function(results){ + callback(null, x % 2); + }, function(err, results){ + test.equals(err, null); test.same(results, [2]); test.same(a, [3,1,2]); test.done(); }); }; +exports['reject error'] = function(test){ + test.expect(2); + async.reject([3,1,2], function(x, callback){ + callback('error'); + } , function(err, results){ + test.equals(err, 'error'); + test.equals(results, null); + test.done(); + }); +}; + exports['rejectSeries'] = function(test){ - test.expect(1); - async.rejectSeries([3,1,2], filterIterator, function(results){ + test.expect(2); + async.rejectSeries([3,1,2], filterIterator, function(err, results){ + test.equals(err, null); test.same(results, [2]); test.done(); }); @@ -2235,40 +2264,44 @@ function testLimit(test, arr, limitFunc, limit, iter, done) { } exports['rejectLimit'] = function(test) { - test.expect(2); + test.expect(3); testLimit(test, [5, 4, 3, 2, 1], async.rejectLimit, 2, function(v, next) { - next(v % 2); - }, function(x) { - test.same(x, [4, 2]); + next(null, v % 2); + }, function(err, result){ + test.equals(err, null); + test.same(result, [4, 2]); test.done(); }); }; exports['filterLimit'] = function(test) { - test.expect(2); + test.expect(3); testLimit(test, [5, 4, 3, 2, 1], async.filterLimit, 2, function(v, next) { - next(v % 2); - }, function(x) { - test.same(x, [5, 3, 1]); + next(null, v % 2); + }, function(err, result){ + test.equals(err, null); + test.same(result, [5, 3, 1]); test.done(); }); }; exports['some true'] = function(test){ - test.expect(1); + test.expect(2); async.some([3,1,2], function(x, callback){ - setTimeout(function(){callback(x === 1);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x === 1);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, true); test.done(); }); }; exports['some false'] = function(test){ - test.expect(1); + test.expect(2); async.some([3,1,2], function(x, callback){ - setTimeout(function(){callback(x === 10);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x === 10);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, false); test.done(); }); @@ -2280,7 +2313,7 @@ exports['some early return'] = function(test){ async.some([1,2,3], function(x, callback){ setTimeout(function(){ call_order.push(x); - callback(x === 1); + callback(null, x === 1); }, x*25); }, function(){ call_order.push('callback'); @@ -2291,10 +2324,22 @@ exports['some early return'] = function(test){ }, 100); }; +exports['some error'] = function(test){ + test.expect(2); + async.some([3,1,2], function(x, callback){ + setTimeout(function(){callback('error');}, 0); + }, function(err, result){ + test.equals(err, 'error'); + test.equals(result, null); + test.done(); + }); +}; + exports['someLimit true'] = function(test){ async.someLimit([3,1,2], 2, function(x, callback){ - setTimeout(function(){callback(x === 2);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x === 2);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, true); test.done(); }); @@ -2302,8 +2347,9 @@ exports['someLimit true'] = function(test){ exports['someLimit false'] = function(test){ async.someLimit([3,1,2], 2, function(x, callback){ - setTimeout(function(){callback(x === 10);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x === 10);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, false); test.done(); }); @@ -2311,8 +2357,9 @@ exports['someLimit false'] = function(test){ exports['every true'] = function(test){ async.everyLimit([3,1,2], 1, function(x, callback){ - setTimeout(function(){callback(x > 1);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x > 1);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, true); test.done(); }); @@ -2320,20 +2367,22 @@ exports['every true'] = function(test){ exports['everyLimit false'] = function(test){ async.everyLimit([3,1,2], 2, function(x, callback){ - setTimeout(function(){callback(x === 2);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x === 2);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, false); test.done(); }); }; exports['everyLimit short-circuit'] = function(test){ - test.expect(2); + test.expect(3); var calls = 0; async.everyLimit([3,1,2], 1, function(x, callback){ calls++; - callback(x === 1); - }, function(result){ + callback(null, x === 1); + }, function(err, result){ + test.equals(err, null); test.equals(result, false); test.equals(calls, 1); test.done(); @@ -2342,12 +2391,13 @@ exports['everyLimit short-circuit'] = function(test){ exports['someLimit short-circuit'] = function(test){ - test.expect(2); + test.expect(3); var calls = 0; async.someLimit([3,1,2], 1, function(x, callback){ calls++; - callback(x === 1); - }, function(result){ + callback(null, x === 1); + }, function(err, result){ + test.equals(err, null); test.equals(result, true); test.equals(calls, 2); test.done(); @@ -2360,20 +2410,22 @@ exports['any alias'] = function(test){ }; exports['every true'] = function(test){ - test.expect(1); + test.expect(2); async.every([1,2,3], function(x, callback){ - setTimeout(function(){callback(true);}, 0); - }, function(result){ + setTimeout(function(){callback(null, true);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, true); test.done(); }); }; exports['every false'] = function(test){ - test.expect(1); + test.expect(2); async.every([1,2,3], function(x, callback){ - setTimeout(function(){callback(x % 2);}, 0); - }, function(result){ + setTimeout(function(){callback(null, x % 2);}, 0); + }, function(err, result){ + test.equals(err, null); test.equals(result, false); test.done(); }); @@ -2385,7 +2437,7 @@ exports['every early return'] = function(test){ async.every([1,2,3], function(x, callback){ setTimeout(function(){ call_order.push(x); - callback(x === 1); + callback(null, x === 1); }, x*25); }, function(){ call_order.push('callback'); @@ -2396,16 +2448,27 @@ exports['every early return'] = function(test){ }, 100); }; +exports['every error'] = function(test){ + async.every([1,2,3], function(x, callback){ + setTimeout(function(){callback('error');}, 0); + }, function(err, result){ + test.equals(err, 'error'); + test.equals(result, null); + test.done(); + }); +}; + exports['all alias'] = function(test){ test.equals(async.all, async.every); test.done(); }; exports['detect'] = function(test){ - test.expect(2); + test.expect(3); var call_order = []; - async.detect([3,2,1], detectIterator.bind(this, call_order), function(result){ + async.detect([3,2,1], detectIterator.bind(this, call_order), function(err, result){ call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function(){ @@ -2415,10 +2478,11 @@ exports['detect'] = function(test){ }; exports['detect - mulitple matches'] = function(test){ - test.expect(2); + test.expect(3); var call_order = []; - async.detect([3,2,2,1,2], detectIterator.bind(this, call_order), function(result){ + async.detect([3,2,2,1,2], detectIterator.bind(this, call_order), function(err, result){ call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function(){ @@ -2427,11 +2491,23 @@ exports['detect - mulitple matches'] = function(test){ }, 100); }; -exports['detectSeries'] = function(test){ +exports['detect error'] = function(test){ test.expect(2); + async.detect([3,2,1], function(x, callback) { + setTimeout(function(){callback('error');}, 0); + }, function(err, result){ + test.equals(err, 'error'); + test.equals(result, null); + test.done(); + }); +}; + +exports['detectSeries'] = function(test){ + test.expect(3); var call_order = []; - async.detectSeries([3,2,1], detectIterator.bind(this, call_order), function(result){ + async.detectSeries([3,2,1], detectIterator.bind(this, call_order), function(err, result){ call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function(){ @@ -2441,10 +2517,11 @@ exports['detectSeries'] = function(test){ }; exports['detectSeries - multiple matches'] = function(test){ - test.expect(2); + test.expect(3); var call_order = []; - async.detectSeries([3,2,2,1,2], detectIterator.bind(this, call_order), function(result){ + async.detectSeries([3,2,2,1,2], detectIterator.bind(this, call_order), function(err, result){ call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function(){ @@ -2454,21 +2531,23 @@ exports['detectSeries - multiple matches'] = function(test){ }; exports['detectSeries - ensure stop'] = function (test) { - test.expect(1); + test.expect(2); async.detectSeries([1, 2, 3, 4, 5], function (num, cb) { if (num > 3) throw new Error("detectSeries did not stop iterating"); - cb(num === 3); - }, function (result) { + cb(null, num === 3); + }, function (err, result) { + test.equals(err, null); test.equals(result, 3); test.done(); }); }; exports['detectLimit'] = function(test){ - test.expect(2); + test.expect(3); var call_order = []; - async.detectLimit([3, 2, 1], 2, detectIterator.bind(this, call_order), function(result) { + async.detectLimit([3, 2, 1], 2, detectIterator.bind(this, call_order), function(err, result) { call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function() { @@ -2478,10 +2557,11 @@ exports['detectLimit'] = function(test){ }; exports['detectLimit - multiple matches'] = function(test){ - test.expect(2); + test.expect(3); var call_order = []; - async.detectLimit([3,2,2,1,2], 2, detectIterator.bind(this, call_order), function(result){ + async.detectLimit([3,2,2,1,2], 2, detectIterator.bind(this, call_order), function(err, result){ call_order.push('callback'); + test.equals(err, null); test.equals(result, 2); }); setTimeout(function(){ @@ -2491,11 +2571,12 @@ exports['detectLimit - multiple matches'] = function(test){ }; exports['detectLimit - ensure stop'] = function (test) { - test.expect(1); + test.expect(2); async.detectLimit([1, 2, 3, 4, 5], 2, function (num, cb) { if (num > 4) throw new Error("detectLimit did not stop iterating"); - cb(num === 3); - }, function (result) { + cb(null, num === 3); + }, function (err, result) { + test.equals(err, null); test.equals(result, 3); test.done(); }); @@ -2747,37 +2828,6 @@ exports['nextTick in the browser'] = function(test){ setTimeout(test.done, 100); }; -exports['noConflict - node only'] = function(test){ - if (!isBrowser()) { - // node only test - test.expect(3); - var fs = require('fs'); - var vm = require('vm'); - var filename = __dirname + '/../lib/async.js'; - fs.readFile(filename, function(err, content){ - if(err) return test.done(); - - var s = vm.createScript(content, filename); - var s2 = vm.createScript( - content + 'this.async2 = this.async.noConflict();', - filename - ); - - var sandbox1 = {async: 'oldvalue'}; - s.runInNewContext(sandbox1); - test.ok(sandbox1.async); - - var sandbox2 = {async: 'oldvalue'}; - s2.runInNewContext(sandbox2); - test.equals(sandbox2.async, 'oldvalue'); - test.ok(sandbox2.async2); - - test.done(); - }); - } - else test.done(); -}; - exports['concat'] = function(test){ test.expect(3); var call_order = []; @@ -4325,6 +4375,14 @@ exports['memoize'] = { }, 'avoid __proto__ key return undefined': function (test) { + // Skip test if there is a Object.create bug (node 0.10 and some Chrome 30x versions) + var x = Object.create(null); + /* jshint proto: true */ + x.__proto__ = 'foo'; + if (x.__proto__ !== 'foo') { + return test.done(); + } + test.expect(1); var fn = async.memoize(function(name, callback) { setTimeout(function(){ diff --git a/test/test.html b/test/test.html index 2450e2d..0047af4 100644 --- a/test/test.html +++ b/test/test.html @@ -6,7 +6,7 @@ the async lib internally and will overwrite the version we want to test --> <script src="../deps/nodeunit.js"></script> - <script src="../lib/async.js"></script> + <script src="../dist/async.js"></script> <link rel="stylesheet" href="../deps/nodeunit.css" type="text/css" media="screen" /> <script> var _async = this.async; |