1 files changed, 50 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js b/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js
new file mode 100644
index 0000000..d943c65
--- /dev/null
+++ b/tools/addon-sdk-1.5/packages/api-utils/lib/utils/function.js
@@ -0,0 +1,50 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+var { setTimeout } = require("../timer");
+
+/**
+ * Takes a function and returns a wrapped one instead, calling which will call
+ * original function in the next turn of event loop. This is basically utility
+ * to do `setTimeout(function() { ... }, 0)`, with a difference that returned
+ * function is reused, instead of creating a new one each time. This also allows
+ * to use this functions as event listeners.
+ */
+function Enqueued(callee) {
+  return function enqueued()
+    setTimeout(invoke, 0, callee, arguments, this);
+}
+exports.Enqueued = Enqueued;
+
+/**
+ * Invokes `callee` by passing `params` as an arguments and `self` as `this`
+ * pseudo-variable. Returns value that is returned by a callee.
+ * @param {Function} callee
+ *    Function to invoke.
+ * @param {Array} params
+ *    Arguments to invoke function with.
+ * @param {Object} self
+ *    Object to be passed as a `this` pseudo variable.
+ */
+function invoke(callee, params, self) callee.apply(self, params);
+exports.invoke = invoke;
+
+/**
+ * Curries a function with the arguments given.
+ *
+ * @param {Function} fn
+ *    The function to curry
+ *
+ * @returns The function curried
+ */
+function curry(fn) {
+  if (typeof fn !== "function")
+    throw new TypeError(String(fn) + " is not a function");
+
+  let args = Array.slice(arguments, 1);
+
+  return function() fn.apply(this, args.concat(Array.slice(arguments)));
+}
+exports.curry = curry;