perf: remove global allocation for props

packages/core/tests/lifecycle.rs

@@ -1 +1,43 @@
 //! Tests for the lifecycle of components.
+
+use std::{cell::RefCell, rc::Rc};
+
+use anyhow::{Context, Result};
+use dioxus::prelude::*;
+use dioxus_core as dioxus;
+use dioxus_html as dioxus_elements;
+mod test_logging;
+
+const IS_LOGGING_ENABLED: bool = true;
+type Shared<T> = Rc<RefCell<T>>;
+
+#[test]
+fn manual_diffing() {
+    #[derive(PartialEq, Props)]
+    struct AppProps {
+        value: Shared<&'static str>,
+    }
+
+    static App: FC<AppProps> = |cx| {
+        let val = cx.value.borrow();
+        cx.render(rsx! { div { "{val}" } })
+    };
+
+    test_logging::set_up_logging(IS_LOGGING_ENABLED);
+
+    let mut value = Rc::new(RefCell::new("Hello"));
+    let mut dom = VirtualDom::new_with_props(
+        App,
+        AppProps {
+            value: value.clone(),
+        },
+    );
+
+    let _ = dom.rebuild();
+
+    *value.borrow_mut() = "goodbye";
+
+    let edits = dom.diff();
+
+    log::debug!("edits: {:?}", edits);
+}