abuse macros..

core/src/event/manager.rs

@@ -116,11 +116,12 @@ impl<State: 'static, E: Event> TypeEventManager<State, E> {
         self.map.entry(widget.id()).or_default().push((
             event,
             Rc::new(move |ctx| {
-                f(&mut EventIdCtx {
+                let mut test = EventIdCtx {
                     widget,
                     state: ctx.state,
                     data: ctx.data,
-                });
+                };
+                f(&mut test);
             }),
         ));
     }
@@ -128,7 +129,7 @@ impl<State: 'static, E: Event> TypeEventManager<State, E> {
     pub fn run_fn<'a>(
         &mut self,
         id: impl IdLike,
-    ) -> impl for<'b> FnOnce(EventCtx<State, E::Data<'b>>) + 'a {
+    ) -> impl for<'b> FnOnce(EventCtx<'_, State, E::Data<'b>>) + 'a {
         let fs = self.map.get(&id.id()).cloned().unwrap_or_default();
         move |ctx| {
             for (e, f) in fs {