macro goodness

core/src/lib.rs

@@ -19,6 +19,7 @@ mod orientation;
 mod painter;
 mod primitive;
 mod render;
+mod state;
 mod ui;
 mod widget;
 

core/src/state.rs

@@ -0,0 +1,8 @@
+#[macro_export]
+macro_rules! core_state {
+    ($vis: vis $state: ty) => {
+        $vis type WidgetHandle<W = dyn Widget<$state>> = $crate::WidgetHandle<$state, W>;
+        $vis type WidgetRef<W = dyn Widget<$state>> = $crate::WidgetRef<$state, W>;
+        $vis type Ui = $crate::Ui<$state>;
+    };
+}