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import reflect from './reflect';
import isArray from 'lodash/isArray';
/**
* A helper function that wraps an array of functions with reflect.
*
* @name reflectAll
* @static
* @memberOf async
* @see async.reflect
* @category Util
* @param {Array} tasks - The array of functions to wrap in `async.reflect`.
* @returns {Array} Returns an array of functions, each function wrapped in
* `async.reflect`
* @example
*
* let tasks = [
* function(callback) {
* setTimeout(function() {
* callback(null, 'one');
* }, 200);
* },
* function(callback) {
* // do some more stuff but error ...
* callback(new Error('bad stuff happened'));
* },
* function(callback) {
* setTimeout(function() {
* callback(null, 'two');
* }, 100);
* }
* ];
*
* async.parallel(async.reflectAll(tasks),
* // optional callback
* function(err, results) {
* // values
* // results[0].value = 'one'
* // results[1].error = Error('bad stuff happened')
* // results[2].value = 'two'
* });
*/
export default function reflectAll(tasks) {
var results;
if (isArray(tasks)) {
results = tasks.map(reflect);
} else {
var keys = Object.keys(tasks);
results = {};
keys.forEach(function(key) {
results[key] = reflect.call(this, tasks[key])
});
}
return results;
}
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