poc for top-level instance stabillity

emberjs · Jun 29, 2024 · e50cbd4 · e50cbd4
1 parent 4b7d545
commit e50cbd4
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/packages/@ember/-internals/glimmer/lib/templates/outlet-helper-component.gts b/packages/@ember/-internals/glimmer/lib/templates/outlet-helper-component.gts
@@ -36,10 +36,15 @@ export default class OutletHelper extends Component {
         return render.model;
       }
     }
-    const tplComponentInstance = new tpl(args);
+    if (tpl.instance) {
+      return tpl.instance.template;
+    }
     render.controller['args'] = args;
+    const tplComponentInstance = new tpl(args);
+    tplComponentInstance.template = tplComponentInstance.template.bind(render.controller);
     // we need to provide stable refs here to avoid re-renders
-    return tplComponentInstance.template.bind(render.controller);
+    tpl.instance = tplComponentInstance;
+    return tplComponentInstance.template;
   }
   get model() {
     const state = this.state;