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Diffstat (limited to 'node_modules/async/asyncify.js')
-rw-r--r-- | node_modules/async/asyncify.js | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/node_modules/async/asyncify.js b/node_modules/async/asyncify.js deleted file mode 100644 index a31fa9fe9..000000000 --- a/node_modules/async/asyncify.js +++ /dev/null @@ -1,93 +0,0 @@ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = asyncify; - -var _isObject = require('lodash/isObject'); - -var _isObject2 = _interopRequireDefault(_isObject); - -var _initialParams = require('./internal/initialParams'); - -var _initialParams2 = _interopRequireDefault(_initialParams); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -/** - * Take a sync function and make it async, passing its return value to a - * callback. This is useful for plugging sync functions into a waterfall, - * series, or other async functions. Any arguments passed to the generated - * function will be passed to the wrapped function (except for the final - * callback argument). Errors thrown will be passed to the callback. - * - * If the function passed to `asyncify` returns a Promise, that promises's - * resolved/rejected state will be used to call the callback, rather than simply - * the synchronous return value. - * - * This also means you can asyncify ES2016 `async` functions. - * - * @name asyncify - * @static - * @memberOf module:Utils - * @method - * @alias wrapSync - * @category Util - * @param {Function} func - The synchronous function to convert to an - * asynchronous function. - * @returns {Function} An asynchronous wrapper of the `func`. To be invoked with - * (callback). - * @example - * - * // passing a regular synchronous function - * async.waterfall([ - * async.apply(fs.readFile, filename, "utf8"), - * async.asyncify(JSON.parse), - * function (data, next) { - * // data is the result of parsing the text. - * // If there was a parsing error, it would have been caught. - * } - * ], callback); - * - * // passing a function returning a promise - * async.waterfall([ - * async.apply(fs.readFile, filename, "utf8"), - * async.asyncify(function (contents) { - * return db.model.create(contents); - * }), - * function (model, next) { - * // `model` is the instantiated model object. - * // If there was an error, this function would be skipped. - * } - * ], callback); - * - * // es6 example - * var q = async.queue(async.asyncify(async function(file) { - * var intermediateStep = await processFile(file); - * return await somePromise(intermediateStep) - * })); - * - * q.push(files); - */ -function asyncify(func) { - return (0, _initialParams2.default)(function (args, callback) { - var result; - try { - result = func.apply(this, args); - } catch (e) { - return callback(e); - } - // if result is Promise object - if ((0, _isObject2.default)(result) && typeof result.then === 'function') { - result.then(function (value) { - callback(null, value); - }, function (err) { - callback(err.message ? err : new Error(err)); - }); - } else { - callback(null, result); - } - }); -} -module.exports = exports['default'];
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