Initial commit

nova-components/NovaLeader/node_modules/es5-ext/promise/lazy.js

@@ -0,0 +1,35 @@
+"use strict";
+
+var isFunction = require("../function/is-function");
+
+module.exports = function (executor) {
+	var Constructor;
+	if (isFunction(this)) {
+		Constructor = this;
+	} else if (typeof Promise === "function") {
+		Constructor = Promise;
+	} else {
+		throw new TypeError("Could not resolve Promise constuctor");
+	}
+
+	var lazyThen;
+	var promise = new Constructor(function (resolve, reject) {
+		lazyThen = function (onSuccess, onFailure) {
+			if (!hasOwnProperty.call(this, "then")) {
+				// Sanity check
+				throw new Error("Unexpected (inherited) lazy then invocation");
+			}
+
+			try { executor(resolve, reject); }
+			catch (reason) { reject(reason); }
+			delete this.then;
+			return this.then(onSuccess, onFailure);
+		};
+	});
+
+	return Object.defineProperty(promise, "then", {
+		configurable: true,
+		writable: true,
+		value: lazyThen
+	});
+};