From 18efd30a263ec0d79a26a82cbd8c90c9f81056b7 Mon Sep 17 00:00:00 2001 From: Minteck Date: Mon, 28 Nov 2022 17:14:38 +0100 Subject: Open source --- node_modules/async/internal/awaitify.js | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 node_modules/async/internal/awaitify.js (limited to 'node_modules/async/internal/awaitify.js') diff --git a/node_modules/async/internal/awaitify.js b/node_modules/async/internal/awaitify.js new file mode 100644 index 0000000..7b36f1a --- /dev/null +++ b/node_modules/async/internal/awaitify.js @@ -0,0 +1,27 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = awaitify; +// conditionally promisify a function. +// only return a promise if a callback is omitted +function awaitify(asyncFn, arity = asyncFn.length) { + if (!arity) throw new Error('arity is undefined'); + function awaitable(...args) { + if (typeof args[arity - 1] === 'function') { + return asyncFn.apply(this, args); + } + + return new Promise((resolve, reject) => { + args[arity - 1] = (err, ...cbArgs) => { + if (err) return reject(err); + resolve(cbArgs.length > 1 ? cbArgs : cbArgs[0]); + }; + asyncFn.apply(this, args); + }); + } + + return awaitable; +} +module.exports = exports['default']; \ No newline at end of file -- cgit