store refactoring

web/static/src/ts/main.ts

@@ -30,3 +30,16 @@ document.addEventListener("DOMContentLoaded", async function() {
   // For debugging purpose, we keep a reference to the root widget in odoo
   (<any>window).odoo.rootWidget = rootWidget;
 });
+
+let testMixin = Base =>
+  class extends Base {
+    calc() {
+      return 32;
+    }
+  };
+
+class Foo {}
+
+class Bar extends testMixin(Foo) {}
+
+console.log(new Bar().calc());