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author | Florian Dold <florian.dold@gmail.com> | 2016-10-10 03:43:44 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2016-10-10 03:43:44 +0200 |
commit | abd94a7f5a50f43c797a11b53549ae48fff667c3 (patch) | |
tree | ab8ed457f65cdd72e13e0571d2975729428f1551 /node_modules/async/reflect.js | |
parent | a0247c6a3fd6a09a41a7e35a3441324c4dcb58be (diff) | |
download | wallet-core-abd94a7f5a50f43c797a11b53549ae48fff667c3.tar.xz |
add node_modules to address #4364
Diffstat (limited to 'node_modules/async/reflect.js')
-rw-r--r-- | node_modules/async/reflect.js | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/node_modules/async/reflect.js b/node_modules/async/reflect.js new file mode 100644 index 000000000..326d1b977 --- /dev/null +++ b/node_modules/async/reflect.js @@ -0,0 +1,80 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = reflect; + +var _initialParams = require('./internal/initialParams'); + +var _initialParams2 = _interopRequireDefault(_initialParams); + +var _rest = require('lodash/rest'); + +var _rest2 = _interopRequireDefault(_rest); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +/** + * Wraps the function in another function that always returns data even when it + * errors. + * + * The object returned has either the property `error` or `value`. + * + * @name reflect + * @static + * @memberOf module:Utils + * @method + * @category Util + * @param {Function} fn - The function you want to wrap + * @returns {Function} - A function that always passes null to it's callback as + * the error. The second argument to the callback will be an `object` with + * either an `error` or a `value` property. + * @example + * + * async.parallel([ + * async.reflect(function(callback) { + * // do some stuff ... + * callback(null, 'one'); + * }), + * async.reflect(function(callback) { + * // do some more stuff but error ... + * callback('bad stuff happened'); + * }), + * async.reflect(function(callback) { + * // do some more stuff ... + * callback(null, 'two'); + * }) + * ], + * // optional callback + * function(err, results) { + * // values + * // results[0].value = 'one' + * // results[1].error = 'bad stuff happened' + * // results[2].value = 'two' + * }); + */ +function reflect(fn) { + return (0, _initialParams2.default)(function reflectOn(args, reflectCallback) { + args.push((0, _rest2.default)(function callback(err, cbArgs) { + if (err) { + reflectCallback(null, { + error: err + }); + } else { + var value = null; + if (cbArgs.length === 1) { + value = cbArgs[0]; + } else if (cbArgs.length > 1) { + value = cbArgs; + } + reflectCallback(null, { + value: value + }); + } + })); + + return fn.apply(this, args); + }); +} +module.exports = exports['default'];
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