index.js 1.2 KB
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;(function(define){define(function(require,exports,module){

	function denodeify(nodeStyleFunction, filter) {
		'use strict';

		return function() {
			var self = this;
			var functionArguments = new Array(arguments.length + 1);

			for (var i = 0; i < arguments.length; i += 1) {
				functionArguments[i] = arguments[i];
			}

			function promiseHandler(resolve, reject) {
				function callbackFunction() {
					var args = new Array(arguments.length);

					for (var i = 0; i < args.length; i += 1) {
						args[i] = arguments[i];
					}

					if (filter) {
						args = filter.apply(self, args);
					}

					var error = args[0];
					var result = args[1];

					if (error) {
						return reject(error);
					}

					return resolve(result);
				}

				functionArguments[functionArguments.length - 1] = callbackFunction;
				nodeStyleFunction.apply(self, functionArguments);
			}

			return new Promise(promiseHandler);
		};
	}

	module.exports = denodeify;

});})(typeof define=='function'&&define.amd?define
:(function(n,w){'use strict';return typeof module=='object'?function(c){
c(require,exports,module);}:function(c){var m={exports:{}};c(function(n){
return w[n];},m.exports,m);w[n]=m.exports;};})('denodeify',this));