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1 files changed, 105 insertions, 0 deletions

diff --git a/node_modules/when/generator.js b/node_modules/when/generator.js
new file mode 100644
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--- /dev/null
+++ b/node_modules/when/generator.js
@@ -0,0 +1,105 @@
+/** @license MIT License (c) copyright 2010-2014 original author or authors */
+/** @author Brian Cavalier */
+/** @author John Hann */
+
+(function(define) { 'use strict';
+define(function(require) {
+
+	var when = require('./when');
+	var slice = Array.prototype.slice;
+	var Promise = when.Promise;
+	var reject = Promise.reject;
+
+	/**
+	 * Lift a generator to create a function that can suspend and
+	 * resume using the `yield` keyword to await promises.
+	 * @param {function} generator
+	 * @return {function}
+	 */
+	function lift(generator) {
+		return function() {
+			return run(generator, this, arguments);
+		};
+	}
+
+	/**
+	 * Immediately call a generator as a promise-aware coroutine
+	 * that can suspend and resume using the `yield` keyword to
+	 * await promises.  Additional arguments after the first will
+	 * be passed through to the generator.
+	 * @param {function} generator
+	 * @returns {Promise} promise for the ultimate value returned
+	 *  from the generator.
+	 */
+	function call(generator /*x, y, z...*/) {
+		/*jshint validthis:true*/
+		return run(generator, this, slice.call(arguments, 1));
+	}
+
+	/**
+	 * Immediately apply a generator, with the supplied args array,
+	 * as a promise-aware coroutine that can suspend and resume
+	 * using the `yield` keyword to await promises.
+	 * @param {function} generator
+	 * @param {Array} args arguments with which to initialize the generator
+	 * @returns {Promise} promise for the ultimate value returned
+	 *  from the generator.
+	 */
+	function apply(generator, args) {
+		/*jshint validthis:true*/
+		return run(generator, this, args || []);
+	}
+
+	/**
+	 * Helper to initiate the provided generator as a coroutine
+	 * @returns {*}
+	 */
+	function run(generator, thisArg, args) {
+		return runNext(void 0, generator.apply(thisArg, args));
+	}
+
+	function runNext(x, iterator) {
+		try {
+			return handle(iterator.next(x), iterator);
+		} catch(e) {
+			return reject(e);
+		}
+	}
+
+	function next(x) {
+		/*jshint validthis:true*/
+		return runNext(x, this);
+	}
+
+	function error(e) {
+		/*jshint validthis:true*/
+		try {
+			return handle(this.throw(e), this);
+		} catch(e) {
+			return reject(e);
+		}
+	}
+
+	function handle(result, iterator) {
+		if(result.done) {
+			return result.value;
+		}
+
+		var h = Promise._handler(result.value);
+		if(h.state() > 0) {
+			return runNext(h.value, iterator);
+		}
+
+		var p = Promise._defer();
+		h.chain(p._handler, iterator, next, error);
+		return p;
+	}
+
+	return {
+		lift: lift,
+		call: call,
+		apply: apply
+	};
+
+});
+}(typeof define === 'function' && define.amd ? define : function(factory) { module.exports = factory(require); }));