Bug 731779: Integrate the Add-on SDK loader and API libraries into Firefox (uplifting from addon-sdk a16bbd5772880b578a939eeb65102bca6560d494)

addon-sdk/source/lib/sdk/test/loader.js

@@ -0,0 +1,28 @@
+/* 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";
+
+const { Loader, resolveURI, Require,
+        unload, override, descriptor  } = require('../loader/cuddlefish');
+
+exports.Loader = function(module, globals, packaging) {
+  let options = packaging || require("@loader/options");
+  options = override(options, {
+    globals: override(require('../system/globals'), globals || {})
+  });
+
+  let loader = Loader(options);
+  return Object.create(loader, descriptor({
+    require: Require(loader, module),
+    sandbox: function(id) {
+      let requirement = loader.resolve(id, module.id);
+      let uri = resolveURI(requirement, loader.mapping);
+      return loader.sandboxes[uri];
+    },
+    unload: function(reason) {
+      unload(loader, reason);
+    }
+  }));
+};