perf: ⚡️ switched to Rc<ErrorPages> to avoid producing unnecessary ErrorPages

Author: arctic-hen7

examples/cli/.perseus/src/lib.rs

@@ -25,12 +25,13 @@ pub fn run() -> Result<(), JsValue> {
     // Create a mutable translations manager to control caching
     let translations_manager =
         Rc::new(RefCell::new(ClientTranslationsManager::new(&get_locales())));
+    // Get the error pages in an `Rc` so we aren't creating hundreds of them
+    let error_pages = Rc::new(get_error_pages());
 
     sycamore::render_to(
         || {
             template! {
                 BrowserRouter(move |route: AppRoute| {
-                    // TODO improve performance rather than naively copying error pages for every template (use `Rc<ErrorPages>`)
                     match route {
                         // We handle the 404 for the user for convenience
                         AppRoute::NotFound => get_error_pages().get_template_for_page("", &404, "not found"),
@@ -44,7 +45,7 @@ pub fn run() -> Result<(), JsValue> {
                                 locale,
                                 // We give the app shell a translations manager and let it get the `Rc<Translator>` (because it can do async safely)
                                 Rc::clone(&translations_manager),
-                                get_error_pages()
+                                Rc::clone(&error_pages)
                             )
                         }
                     }

packages/perseus/src/shell.rs

@@ -115,7 +115,7 @@ pub fn app_shell(
     // translator: Rc<Translator>,
     locale: String,
     translations_manager: Rc<RefCell<ClientTranslationsManager>>,
-    error_pages: ErrorPages,
+    error_pages: Rc<ErrorPages>,
 ) -> Template<DomNode> {
     // Get the container as a DOM element
     let container = NodeRef::new();