1 files changed, 19 insertions, 0 deletions
diff --git a/toolkit/components/ctypes/ctypes.sys.mjs b/toolkit/components/ctypes/ctypes.sys.mjs
new file mode 100644
index 0000000000..3816dd441a
--- /dev/null
+++ b/toolkit/components/ctypes/ctypes.sys.mjs
@@ -0,0 +1,19 @@
+/* -*-  indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+/*
+ * This is the js module for ctypes. Import it like so:
+ *   const { ctypes } =
+ *     ChromeUtils.importESModule("resource://gre/modules/ctypes.sys.mjs");
+ *
+ * This will create a 'ctypes' object, which provides an interface to describe
+ * and instantiate C types and call C functions from a dynamic library.
+ */
+
+// Initialize the ctypes object. You do not need to do this yourself.
+const init = Cc["@mozilla.org/jsctypes;1"].createInstance();
+init();
+
+export const ctypes = globalThis.ctypes;