1 files changed, 46 insertions, 0 deletions
diff --git a/js/xpconnect/loader/nsImportModule.cpp b/js/xpconnect/loader/nsImportModule.cpp
new file mode 100644
index 0000000000..372ca6de75
--- /dev/null
+++ b/js/xpconnect/loader/nsImportModule.cpp
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "nsImportModule.h"
+
+#include "mozilla/ResultExtensions.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozJSComponentLoader.h"
+#include "xpcpublic.h"
+#include "xpcprivate.h"
+
+using mozilla::dom::AutoJSAPI;
+
+namespace mozilla {
+namespace loader {
+
+nsresult ImportModule(const char* aURI, const char* aExportName,
+                      const nsIID& aIID, void** aResult) {
+  AutoJSAPI jsapi;
+  MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
+  JSContext* cx = jsapi.cx();
+
+  JS::RootedObject global(cx);
+  JS::RootedObject exports(cx);
+  MOZ_TRY(mozJSComponentLoader::Get()->Import(cx, nsDependentCString(aURI),
+                                              &global, &exports));
+
+  if (aExportName) {
+    JS::RootedValue namedExport(cx);
+    if (!JS_GetProperty(cx, exports, aExportName, &namedExport)) {
+      return NS_ERROR_FAILURE;
+    }
+    if (!namedExport.isObject()) {
+      return NS_ERROR_XPC_BAD_CONVERT_JS;
+    }
+    exports.set(&namedExport.toObject());
+  }
+
+  return nsXPConnect::XPConnect()->WrapJS(cx, exports, aIID, aResult);
+}
+
+}  // namespace loader
+}  // namespace mozilla