chore: make warnings go away

packages/core/tests/diff_component.rs

@@ -0,0 +1,102 @@
+use dioxus::core::{ElementId, Mutation::*};
+use dioxus::prelude::*;
+
+/// When returning sets of components, we do a light diff of the contents to preserve some react-like functionality
+///
+/// This means that nav_bar should never get re-created and that we should only be swapping out
+/// different pointers
+#[test]
+fn component_swap() {
+    fn app(cx: Scope) -> Element {
+        let render_phase = cx.use_hook(|| 0);
+
+        *render_phase += 1;
+
+        cx.render(match *render_phase {
+            0 => rsx! {
+                nav_bar {}
+                dash_board {}
+            },
+            1 => rsx! {
+                nav_bar {}
+                dash_results {}
+            },
+            2 => rsx! {
+                nav_bar {}
+                dash_board {}
+            },
+            3 => rsx! {
+                nav_bar {}
+                dash_results {}
+            },
+            4 => rsx! {
+                nav_bar {}
+                dash_board {}
+            },
+            _ => rsx!("blah"),
+        })
+    }
+
+    fn nav_bar(cx: Scope) -> Element {
+        cx.render(rsx! {
+            h1 {
+                "NavBar"
+                (0..3).map(|_| rsx!(nav_link {}))
+            }
+        })
+    }
+
+    fn nav_link(cx: Scope) -> Element {
+        cx.render(rsx!( h1 { "nav_link" } ))
+    }
+
+    fn dash_board(cx: Scope) -> Element {
+        cx.render(rsx!( div { "dashboard" } ))
+    }
+
+    fn dash_results(cx: Scope) -> Element {
+        cx.render(rsx!( div { "results" } ))
+    }
+
+    let mut dom = VirtualDom::new(app);
+    let edits = dom.rebuild().santize();
+    assert_eq!(
+        edits.edits,
+        [
+            LoadTemplate { name: "template", index: 0, id: ElementId(1) },
+            LoadTemplate { name: "template", index: 0, id: ElementId(2) },
+            LoadTemplate { name: "template", index: 0, id: ElementId(3) },
+            LoadTemplate { name: "template", index: 0, id: ElementId(4) },
+            ReplacePlaceholder { path: &[1], m: 3 },
+            LoadTemplate { name: "template", index: 0, id: ElementId(5) },
+            AppendChildren { m: 2 }
+        ]
+    );
+
+    dom.mark_dirty(ScopeId(0));
+    assert_eq!(
+        dom.render_immediate().santize().edits,
+        [
+            LoadTemplate { name: "template", index: 0, id: ElementId(6) },
+            ReplaceWith { id: ElementId(5), m: 1 }
+        ]
+    );
+
+    dom.mark_dirty(ScopeId(0));
+    assert_eq!(
+        dom.render_immediate().santize().edits,
+        [
+            LoadTemplate { name: "template", index: 0, id: ElementId(5) },
+            ReplaceWith { id: ElementId(6), m: 1 }
+        ]
+    );
+
+    dom.mark_dirty(ScopeId(0));
+    assert_eq!(
+        dom.render_immediate().santize().edits,
+        [
+            LoadTemplate { name: "template", index: 0, id: ElementId(6) },
+            ReplaceWith { id: ElementId(5), m: 1 }
+        ]
+    );
+}