lepu-test-platform-web/node_modules/async/forEachOf.js

111 lines
3.3 KiB
JavaScript
Raw Normal View History

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = function (coll, iteratee, callback) {
var eachOfImplementation = (0, _isArrayLike2.default)(coll) ? eachOfArrayLike : eachOfGeneric;
eachOfImplementation(coll, (0, _wrapAsync2.default)(iteratee), callback);
};
var _isArrayLike = require('lodash/isArrayLike');
var _isArrayLike2 = _interopRequireDefault(_isArrayLike);
var _breakLoop = require('./internal/breakLoop');
var _breakLoop2 = _interopRequireDefault(_breakLoop);
var _eachOfLimit = require('./eachOfLimit');
var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
var _doLimit = require('./internal/doLimit');
var _doLimit2 = _interopRequireDefault(_doLimit);
var _noop = require('lodash/noop');
var _noop2 = _interopRequireDefault(_noop);
var _once = require('./internal/once');
var _once2 = _interopRequireDefault(_once);
var _onlyOnce = require('./internal/onlyOnce');
var _onlyOnce2 = _interopRequireDefault(_onlyOnce);
var _wrapAsync = require('./internal/wrapAsync');
var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
// eachOf implementation optimized for array-likes
function eachOfArrayLike(coll, iteratee, callback) {
callback = (0, _once2.default)(callback || _noop2.default);
var index = 0,
completed = 0,
length = coll.length;
if (length === 0) {
callback(null);
}
function iteratorCallback(err, value) {
if (err) {
callback(err);
} else if (++completed === length || value === _breakLoop2.default) {
callback(null);
}
}
for (; index < length; index++) {
iteratee(coll[index], index, (0, _onlyOnce2.default)(iteratorCallback));
}
}
// a generic version of eachOf which can handle array, object, and iterator cases.
var eachOfGeneric = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity);
/**
* Like [`each`]{@link module:Collections.each}, except that it passes the key (or index) as the second argument
* to the iteratee.
*
* @name eachOf
* @static
* @memberOf module:Collections
* @method
* @alias forEachOf
* @category Collection
* @see [async.each]{@link module:Collections.each}
* @param {Array|Iterable|Object} coll - A collection to iterate over.
* @param {AsyncFunction} iteratee - A function to apply to each
* item in `coll`.
* The `key` is the item's key, or index in the case of an array.
* Invoked with (item, key, callback).
* @param {Function} [callback] - A callback which is called when all
* `iteratee` functions have finished, or an error occurs. Invoked with (err).
* @example
*
* var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"};
* var configs = {};
*
* async.forEachOf(obj, function (value, key, callback) {
* fs.readFile(__dirname + value, "utf8", function (err, data) {
* if (err) return callback(err);
* try {
* configs[key] = JSON.parse(data);
* } catch (e) {
* return callback(e);
* }
* callback();
* });
* }, function (err) {
* if (err) console.error(err.message);
* // configs is now a map of JSON data
* doSomethingWith(configs);
* });
*/
module.exports = exports['default'];