Fix: #2095, #1990

- Don't merge dynamic attributes together unnecessarily
- Walk the workspace until we find a target dir with the dioxusin handle

packages/core/tests/attributes_pass.rs

@@ -0,0 +1,32 @@
+use dioxus::dioxus_core::{ElementId, Mutation::*};
+use dioxus::prelude::*;
+
+/// Make sure that rsx! is parsing templates and their attributes properly
+#[test]
+fn attributes_pass_properly() {
+    let h = rsx! {
+        circle {
+            cx: 50,
+            cy: 50,
+            r: 40,
+            stroke: "green",
+            fill: "yellow"
+        }
+    };
+
+    let o = h.unwrap();
+
+    let template = &o.template.get();
+
+    assert_eq!(template.attr_paths.len(), 3);
+
+    let _circle = template.roots[0];
+    let TemplateNode::Element { attrs, tag, namespace, children } = _circle else {
+        panic!("Expected an element");
+    };
+
+    assert_eq!(tag, "circle");
+    assert_eq!(namespace, Some("http://www.w3.org/2000/svg"));
+    assert_eq!(children.len(), 0);
+    assert_eq!(attrs.len(), 5);
+}

packages/hot-reload/src/lib.rs

@@ -31,10 +31,35 @@ pub enum HotReloadMsg {
 /// Connect to the hot reloading listener. The callback provided will be called every time a template change is detected
 pub fn connect(mut callback: impl FnMut(HotReloadMsg) + Send + 'static) {
     std::thread::spawn(move || {
-        let path = PathBuf::from("./").join("target").join("dioxusin");
+        // get the cargo manifest directory, where the target dir lives
+        let mut path = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
+
+        // walk the path until we a find a socket named `dioxusin` inside that folder's target directory
+        loop {
+            let maybe = path.join("target").join("dioxusin");
+
+            if maybe.exists() {
+                path = maybe;
+                break;
+            }
+
+            path = match path.parent() {
+                Some(parent) => parent.to_path_buf(),
+                None => {
+                    return eprintln!(
+                        "could not find hot reloading server for crate at {}",
+                        env!("CARGO_MANIFEST_DIR")
+                    )
+                }
+            };
+        }
 
         // There might be a socket since the we're not running under the hot reloading server
-        let Ok(socket) = LocalSocketStream::connect(path) else {
+        let Ok(socket) = LocalSocketStream::connect(path.clone()) else {
+            println!(
+                "could not find hot reloading server at {:?}, make sure it's running",
+                path
+            );
             return;
         };
 

packages/playwright-tests/package-lock.json

@@ -9,16 +9,16 @@
       "version": "1.0.0",
       "license": "ISC",
       "devDependencies": {
-        "@playwright/test": "^1.41.2"
+        "@playwright/test": "^1.42.1"
       }
     },
     "node_modules/@playwright/test": {
-      "version": "1.41.2",
-      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.41.2.tgz",
-      "integrity": "sha512-qQB9h7KbibJzrDpkXkYvsmiDJK14FULCCZgEcoe2AvFAS64oCirWTwzTlAYEbKaRxWs5TFesE1Na6izMv3HfGg==",
+      "version": "1.42.1",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.42.1.tgz",
+      "integrity": "sha512-Gq9rmS54mjBL/7/MvBaNOBwbfnh7beHvS6oS4srqXFcQHpQCV1+c8JXWE8VLPyRDhgS3H8x8A7hztqI9VnwrAQ==",
       "dev": true,
       "dependencies": {
-        "playwright": "1.41.2"
+        "playwright": "1.42.1"
       },
       "bin": {
         "playwright": "cli.js"
@@ -42,12 +42,12 @@
       }
     },
     "node_modules/playwright": {
-      "version": "1.41.2",
-      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.41.2.tgz",
-      "integrity": "sha512-v0bOa6H2GJChDL8pAeLa/LZC4feoAMbSQm1/jF/ySsWWoaNItvrMP7GEkvEEFyCTUYKMxjQKaTSg5up7nR6/8A==",
+      "version": "1.42.1",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.42.1.tgz",
+      "integrity": "sha512-PgwB03s2DZBcNRoW+1w9E+VkLBxweib6KTXM0M3tkiT4jVxKSi6PmVJ591J+0u10LUrgxB7dLRbiJqO5s2QPMg==",
       "dev": true,
       "dependencies": {
-        "playwright-core": "1.41.2"
+        "playwright-core": "1.42.1"
       },
       "bin": {
         "playwright": "cli.js"
@@ -60,9 +60,9 @@
       }
     },
     "node_modules/playwright-core": {
-      "version": "1.41.2",
-      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.41.2.tgz",
-      "integrity": "sha512-VaTvwCA4Y8kxEe+kfm2+uUUw5Lubf38RxF7FpBxLPmGe5sdNkSg5e3ChEigaGrX7qdqT3pt2m/98LiyvU2x6CA==",
+      "version": "1.42.1",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.42.1.tgz",
+      "integrity": "sha512-mxz6zclokgrke9p1vtdy/COWBH+eOZgYUVVU34C73M+4j4HLlQJHtfcqiqqxpP0o8HhMkflvfbquLX5dg6wlfA==",
       "dev": true,
       "bin": {
         "playwright-core": "cli.js"

packages/playwright-tests/package.json

@@ -12,6 +12,6 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@playwright/test": "^1.41.2"
+    "@playwright/test": "^1.42.1"
   }
 }

packages/rsx/src/lib.rs

@@ -453,7 +453,8 @@ impl<'a> DynamicContext<'a> {
         }
     }
 
-    fn render_static_node(&mut self, root: &'a BodyNode) -> TokenStream2 {
+    /// Render a portion of an rsx callbody to a token stream
+    pub fn render_static_node(&mut self, root: &'a BodyNode) -> TokenStream2 {
         match root {
             BodyNode::Element(el) => {
                 let el_name = &el.name;
@@ -499,20 +500,10 @@ impl<'a> DynamicContext<'a> {
                     }
 
                     _ => {
-                        // If this attribute is dynamic, but it already exists in the template, we can reuse the index
-                        if let Some(attribute_index) = self
-                            .attr_paths
-                            .iter()
-                            .position(|path| path == &self.current_path)
-                        {
-                            self.dynamic_attributes[attribute_index].push(attr);
-                            quote! {}
-                        } else {
-                            let ct = self.dynamic_attributes.len();
-                            self.dynamic_attributes.push(vec![attr]);
-                            self.attr_paths.push(self.current_path.clone());
-                            quote! { dioxus_core::TemplateAttribute::Dynamic { id: #ct }, }
-                        }
+                        let ct = self.dynamic_attributes.len();
+                        self.dynamic_attributes.push(vec![attr]);
+                        self.attr_paths.push(self.current_path.clone());
+                        quote! { dioxus_core::TemplateAttribute::Dynamic { id: #ct }, }
                     }
                 });
 
@@ -525,7 +516,6 @@ impl<'a> DynamicContext<'a> {
                     out
                 });
 
-                let _opt = el.children.len() == 1;
                 let children = quote! { #(#children),* };
 
                 let ns = ns(quote!(NAME_SPACE));

packages/rsx/tests/hotreloads.rs

@@ -28,6 +28,16 @@ fn hotreloads() {
         diff_rsx(&new, &old),
         DiffResult::RsxChanged { .. }
     ));
+
+    let (old, new) = load_files(
+        include_str!("./valid/combo.old.rsx"),
+        include_str!("./valid/combo.new.rsx"),
+    );
+
+    assert!(matches!(
+        diff_rsx(&new, &old),
+        DiffResult::RsxChanged { .. }
+    ));
 }
 
 #[test]

packages/rsx/tests/parsing.rs

@@ -0,0 +1,44 @@
+use dioxus_rsx::{CallBody, DynamicContext};
+use syn::Item;
+
+#[test]
+fn rsx_writeout_snapshot() {
+    let body = parse_from_str(include_str!("./parsing/multiexpr.rsx"));
+
+    assert_eq!(body.roots.len(), 1);
+
+    let root = &body.roots[0];
+
+    let el = match root {
+        dioxus_rsx::BodyNode::Element(el) => el,
+        _ => panic!("Expected an element"),
+    };
+
+    assert_eq!(el.name, "circle");
+
+    assert_eq!(el.attributes.len(), 5);
+
+    let mut context = DynamicContext::default();
+    let o = context.render_static_node(&body.roots[0]);
+
+    // hi!!!!!
+    // you're probably here because you changed something in how rsx! generates templates and need to update the snapshot
+    // This is a snapshot test. Make sure the contents are checked before committing a new snapshot.
+    let stability_tested = o.to_string();
+    assert_eq!(
+        stability_tested.trim(),
+        include_str!("./parsing/multiexpr.expanded.rsx").trim()
+    );
+}
+
+fn parse_from_str(contents: &str) -> CallBody {
+    // Parse the file
+    let file = syn::parse_file(contents).unwrap();
+
+    // The first token should be the macro call
+    let Item::Macro(call) = file.items.first().unwrap() else {
+        panic!("Expected a macro call");
+    };
+
+    call.mac.parse_body().unwrap()
+}

packages/rsx/tests/parsing/multiexpr.expanded.rsx

@@ -0,0 +1 @@
+dioxus_core :: TemplateNode :: Element { tag : dioxus_elements :: circle :: TAG_NAME , namespace : dioxus_elements :: circle :: NAME_SPACE , attrs : & [dioxus_core :: TemplateAttribute :: Dynamic { id : 0usize } , dioxus_core :: TemplateAttribute :: Dynamic { id : 1usize } , dioxus_core :: TemplateAttribute :: Dynamic { id : 2usize } , dioxus_core :: TemplateAttribute :: Static { name : dioxus_elements :: circle :: stroke . 0 , namespace : dioxus_elements :: circle :: stroke . 1 , value : "green" , } , dioxus_core :: TemplateAttribute :: Static { name : dioxus_elements :: circle :: fill . 0 , namespace : dioxus_elements :: circle :: fill . 1 , value : "yellow" , } ,] , children : & [] , }

packages/rsx/tests/parsing/multiexpr.rsx

@@ -0,0 +1,11 @@
+
+rsx! {
+    circle {
+        cx: 50,
+        cy: 50,
+        r: 40,
+        stroke: "green",
+        fill: "yellow"
+    }
+}
+

packages/rsx/tests/valid/combo.new.rsx

@@ -0,0 +1,58 @@
+// This test is used by playwright configured in the root of the repo
+
+use dioxus::prelude::*;
+
+fn app() -> Element {
+    let mut num = use_signal(|| 0);
+    let mut eval_result = use_signal(String::new);
+    let a = 123;
+
+    rsx! {
+        div {
+            "hello axum! {num}"
+            button { class: "increment-button", onclick: move |_| num += 1, "Increment" }
+        }
+        svg { circle { cx: 50, cy: 50, r: 40, stroke: "green", fill: "yellow" } }
+        div { class: "raw-attribute-div", "raw-attribute": "raw-attribute-value" }
+        div { class: "hidden-attribute-div", hidden: true }
+        div {
+            class: "dangerous-inner-html-div",
+            dangerous_inner_html: "<p>hello dangerous inner html</p>"
+        }
+        input { value: "hello input" }
+        div { class: "style-div", color: "red", "colored text" }
+        div { class: "style-div", color: "red", "colored text" }
+        button {
+            class: "eval-button",
+            onclick: move |_| async move {
+                let mut eval = eval(
+                    r#"
+                        window.document.title = 'Hello from Dioxus Eval!';
+                        dioxus.send("returned eval value");
+                    "#,
+                );
+
+                let result = eval.recv().await;
+                if let Ok(serde_json::Value::String(string)) = result {
+                    eval_result.set(string);
+                }
+            },
+            "Eval!!!!"
+            "Eval!!!!"
+            "Eval!!!!!"
+            "Eval!!!!"
+            "Eval!!!!"
+            "Eval!!!!"
+        }
+        div { class: "eval-result", "{eval_result}" }
+    }
+}
+
+fn main() {
+    // tracing_wasm::set_as_global_default_with_config(
+    //     tracing_wasm::WASMLayerConfigBuilder::default()
+    //         .set_max_level(tracing::Level::TRACE)
+    //         .build(),
+    // );
+    launch(app);
+}

packages/rsx/tests/valid/combo.old.rsx

@@ -0,0 +1,57 @@
+// This test is used by playwright configured in the root of the repo
+
+use dioxus::prelude::*;
+
+fn app() -> Element {
+    let mut num = use_signal(|| 0);
+    let mut eval_result = use_signal(String::new);
+    let a = 123;
+
+    rsx! {
+        div {
+            "hello axum! {num}"
+            button { class: "increment-button", onclick: move |_| num += 1, "Increment" }
+        }
+        svg { circle { cx: 50, cy: 50, r: 40, stroke: "green", fill: "yellow" } }
+        div { class: "raw-attribute-div", "raw-attribute": "raw-attribute-value" }
+        div { class: "hidden-attribute-div", hidden: true }
+        div {
+            class: "dangerous-inner-html-div",
+            dangerous_inner_html: "<p>hello dangerous inner html</p>"
+        }
+        input { value: "hello input" }
+        div { class: "style-div", color: "red", "colored text" }
+        div { class: "style-div", color: "red", "colored text" }
+        button {
+            class: "eval-button",
+            onclick: move |_| async move {
+                let mut eval = eval(
+                    r#"
+                        window.document.title = 'Hello from Dioxus Eval!';
+                        dioxus.send("returned eval value");
+                    "#,
+                );
+
+                let result = eval.recv().await;
+                if let Ok(serde_json::Value::String(string)) = result {
+                    eval_result.set(string);
+                }
+            },
+            "Eval!!!!"
+            "Eval!!!!"
+            "Eval!!!!!"
+            "Eval!!!!"
+            "Eval!!!!"
+        }
+        div { class: "eval-result", "{eval_result}" }
+    }
+}
+
+fn main() {
+    // tracing_wasm::set_as_global_default_with_config(
+    //     tracing_wasm::WASMLayerConfigBuilder::default()
+    //         .set_max_level(tracing::Level::TRACE)
+    //         .build(),
+    // );
+    launch(app);
+}