test

src/macros.rs

@@ -0,0 +1,12 @@
+#[macro_export]
+macro_rules! components {
+    ($($a:ty: $e:expr),*) => {
+        {
+            let mut hm: HashMap<TypeId, Box<dyn Component>> = HashMap::new();
+            $(
+                hm.insert(TypeId::of::<$a>(), Box::new($e));
+            )*
+            hm
+        }
+    };
+}