1 files changed, 27 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.12/lib/sdk/util/deprecate.js b/tools/addon-sdk-1.12/lib/sdk/util/deprecate.js
new file mode 100644
index 0000000..b38606a
--- /dev/null
+++ b/tools/addon-sdk-1.12/lib/sdk/util/deprecate.js
@@ -0,0 +1,27 @@
+/* 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";
+
+module.metadata = {
+  "stability": "experimental"
+};
+
+const traceback = require("../console/traceback");
+
+function deprecateUsage(msg) {
+  // Print caller stacktrace in order to help figuring out which code
+  // does use deprecated thing
+  let stack = traceback.get().slice(0, -2);
+  console.error("DEPRECATED: " + msg + "\n" + traceback.format(stack));
+}
+exports.deprecateUsage = deprecateUsage;
+
+function deprecateFunction(fun, msg) {
+  return function deprecated() {
+    deprecateUsage(msg);
+    return fun.apply(this, arguments);
+  };
+}
+exports.deprecateFunction = deprecateFunction;