[autofix.ci] apply automated fixes

fix: revert changes to raw text parsing (closes #4271)

.github/workflows/autofix.yml

@@ -18,7 +18,7 @@ jobs:
   autofix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with: {toolchain: "nightly-2025-07-16", components: "rustfmt, clippy", target: "wasm32-unknown-unknown", rustflags: ""}
       - name: Install Glib

.github/workflows/ci.yml

@@ -63,6 +63,6 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y libglib2.0-dev
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Semver Checks
         uses: obi1kenobi/cargo-semver-checks-action@v2

.github/workflows/get-example-changed.yml

@@ -19,7 +19,7 @@ jobs:
       matrix: ${{ steps.set-example-changed.outputs.matrix }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Get example files that changed

.github/workflows/get-examples-matrix.yml

@@ -17,7 +17,7 @@ jobs:
       EXCLUDED_EXAMPLES: cargo-make
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Install jq
         run: sudo apt-get install jq
       - name: Set Matrix

.github/workflows/get-leptos-changed.yml

@@ -13,7 +13,7 @@ jobs:
       leptos_changed: ${{ steps.set-source-changed.outputs.leptos_changed }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Get source files that changed

.github/workflows/get-leptos-matrix.yml

@@ -13,7 +13,7 @@ jobs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Install jq
         run: sudo apt-get install jq
       - name: Set Matrix

.github/workflows/publish-book.yml

@@ -12,7 +12,7 @@ jobs:
       contents: write # To push a branch
       pull-requests: write # To create a PR from that branch
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Install mdbook

.github/workflows/run-cargo-make-task.yml

@@ -53,7 +53,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y libglib2.0-dev
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@master
         with:

Cargo.toml

@@ -50,26 +50,26 @@ any_spawner = { path = "./any_spawner/", version = "0.3.0" }
 const_str_slice_concat = { path = "./const_str_slice_concat", version = "0.1" }
 either_of = { path = "./either_of/", version = "0.1.6" }
 hydration_context = { path = "./hydration_context", version = "0.3.0" }
-leptos = { path = "./leptos", version = "0.8.6" }
-leptos_config = { path = "./leptos_config", version = "0.8.5" }
-leptos_dom = { path = "./leptos_dom", version = "0.8.5" }
+leptos = { path = "./leptos", version = "0.8.8" }
+leptos_config = { path = "./leptos_config", version = "0.8.7" }
+leptos_dom = { path = "./leptos_dom", version = "0.8.6" }
 leptos_hot_reload = { path = "./leptos_hot_reload", version = "0.8.5" }
 leptos_integration_utils = { path = "./integrations/utils", version = "0.8.5" }
-leptos_macro = { path = "./leptos_macro", version = "0.8.6" }
-leptos_router = { path = "./router", version = "0.8.5" }
+leptos_macro = { path = "./leptos_macro", version = "0.8.8" }
+leptos_router = { path = "./router", version = "0.8.6" }
 leptos_router_macro = { path = "./router_macro", version = "0.8.5" }
 leptos_server = { path = "./leptos_server", version = "0.8.5" }
 leptos_meta = { path = "./meta", version = "0.8.5" }
 next_tuple = { path = "./next_tuple", version = "0.1.0" }
 oco_ref = { path = "./oco", version = "0.2.1" }
 or_poisoned = { path = "./or_poisoned", version = "0.1.0" }
-reactive_graph = { path = "./reactive_graph", version = "0.2.5" }
+reactive_graph = { path = "./reactive_graph", version = "0.2.6" }
 reactive_stores = { path = "./reactive_stores", version = "0.2.5" }
-reactive_stores_macro = { path = "./reactive_stores_macro", version = "0.2.5" }
-server_fn = { path = "./server_fn", version = "0.8.5" }
-server_fn_macro = { path = "./server_fn_macro", version = "0.8.6" }
+reactive_stores_macro = { path = "./reactive_stores_macro", version = "0.2.6" }
+server_fn = { path = "./server_fn", version = "0.8.6" }
+server_fn_macro = { path = "./server_fn_macro", version = "0.8.7" }
 server_fn_macro_default = { path = "./server_fn/server_fn_macro_default", version = "0.8.5" }
-tachys = { path = "./tachys", version = "0.2.6" }
+tachys = { path = "./tachys", version = "0.2.7" }
 wasm_split_helpers = { path = "./wasm_split", version = "0.1.2" }
 wasm_split_macros = { path = "./wasm_split_macros", version = "0.1.2" }
 
@@ -77,12 +77,12 @@ wasm_split_macros = { path = "./wasm_split_macros", version = "0.1.2" }
 async-once-cell = { default-features = false, version = "0.5.3" }
 itertools = { default-features = false, version = "0.14.0" }
 convert_case = { default-features = false, version = "0.8.0" }
-serde_json = { default-features = false, version = "1.0.140" }
-trybuild = { default-features = false, version = "1.0.106" }
-typed-builder = { default-features = false, version = "0.21.0" }
-thiserror = { default-features = false, version = "2.0.12" }
+serde_json = { default-features = false, version = "1.0.143" }
+trybuild = { default-features = false, version = "1.0.110" }
+typed-builder = { default-features = false, version = "0.21.2" }
+thiserror = { default-features = false, version = "2.0.16" }
 wasm-bindgen = { default-features = false, version = "0.2.100" }
-indexmap = { default-features = false, version = "2.9.0" }
+indexmap = { default-features = false, version = "2.11.0" }
 rstml = { default-features = false, version = "0.12.1" }
 rustc_version = { default-features = false, version = "0.4.1" }
 guardian = { default-features = false, version = "1.3.0" }
@@ -100,17 +100,17 @@ proc-macro-error2 = { default-features = false, version = "2.0.1" }
 const_format = { default-features = false, version = "0.2.34" }
 gloo-net = { default-features = false, version = "0.6.0" }
 url = { default-features = false, version = "2.5.4" }
-tokio = { default-features = false, version = "1.46.1" }
+tokio = { default-features = false, version = "1.47.1" }
 base64 = { default-features = false, version = "0.22.1" }
-cfg-if = { default-features = false, version = "1.0.0" }
+cfg-if = { default-features = false, version = "1.0.3" }
 wasm-bindgen-futures = { default-features = false, version = "0.4.50" }
 tower = { default-features = false, version = "0.5.2" }
-proc-macro2 = { default-features = false, version = "1.0.95" }
+proc-macro2 = { default-features = false, version = "1.0.101" }
 serde = { default-features = false, version = "1.0.219" }
 parking_lot = { default-features = false, version = "0.12.4" }
 axum = { default-features = false, version = "0.8.4" }
 serde_qs = { default-features = false, version = "0.15.0" }
-syn = { default-features = false, version = "2.0.104" }
+syn = { default-features = false, version = "2.0.106" }
 xxhash-rust = { default-features = false, version = "0.8.15" }
 paste = { default-features = false, version = "1.0.15" }
 quote = { default-features = false, version = "1.0.40" }
@@ -122,51 +122,51 @@ tokio-tungstenite = { default-features = false, version = "0.27.0" }
 serial_test = { default-features = false, version = "3.2.0" }
 erased = { default-features = false, version = "0.1.2" }
 glib = { default-features = false, version = "0.20.12" }
-async-trait = { default-features = false, version = "0.1.88" }
+async-trait = { default-features = false, version = "0.1.89" }
 typed-builder-macro = { default-features = false, version = "0.21.0" }
 linear-map = { default-features = false, version = "1.2.0" }
-anyhow = { default-features = false, version = "1.0.98" }
+anyhow = { default-features = false, version = "1.0.99" }
 walkdir = { default-features = false, version = "2.5.0" }
 actix-ws = { default-features = false, version = "0.3.0" }
 tower-http = { default-features = false, version = "0.6.4" }
-prettyplease = { default-features = false, version = "0.2.35" }
-inventory = { default-features = false, version = "0.3.20" }
-config = { default-features = false, version = "0.15.13" }
-camino = { default-features = false, version = "1.1.9" }
+prettyplease = { default-features = false, version = "0.2.37" }
+inventory = { default-features = false, version = "0.3.21" }
+config = { default-features = false, version = "0.15.14" }
+camino = { default-features = false, version = "1.1.11" }
 ciborium = { default-features = false, version = "0.2.2" }
 multer = { default-features = false, version = "3.1.0" }
 leptos-spin-macro = { default-features = false, version = "0.2.0" }
 sledgehammer_utils = { default-features = false, version = "0.3.1" }
 sledgehammer_bindgen = { default-features = false, version = "0.6.0" }
 wasm-streams = { default-features = false, version = "0.4.2" }
-rkyv = { default-features = false, version = "0.8.10" }
+rkyv = { default-features = false, version = "0.8.11" }
 temp-env = { default-features = false, version = "0.3.6" }
-uuid = { default-features = false, version = "1.17.0" }
+uuid = { default-features = false, version = "1.18.0" }
 bytes = { default-features = false, version = "1.10.1" }
 http = { default-features = false, version = "1.3.1" }
-regex = { default-features = false, version = "1.11.1" }
+regex = { default-features = false, version = "1.11.2" }
 drain_filter_polyfill = { default-features = false, version = "0.1.3" }
-tempfile = { default-features = false, version = "3.20.0" }
-futures-lite = { default-features = false, version = "2.6.0" }
+tempfile = { default-features = false, version = "3.21.0" }
+futures-lite = { default-features = false, version = "2.6.1" }
 log = { default-features = false, version = "0.4.27" }
-percent-encoding = { default-features = false, version = "2.3.1" }
+percent-encoding = { default-features = false, version = "2.3.2" }
 async-executor = { default-features = false, version = "1.13.2" }
-const-str = { default-features = false, version = "0.6.3" }
+const-str = { default-features = false, version = "0.6.4" }
 http-body-util = { default-features = false, version = "0.1.3" }
-hyper = { default-features = false, version = "1.6.0" }
-postcard = { default-features = false, version = "1.1.1" }
+hyper = { default-features = false, version = "1.7.0" }
+postcard = { default-features = false, version = "1.1.3" }
 rmp-serde = { default-features = false, version = "1.3.0" }
-reqwest = { default-features = false, version = "0.12.22" }
+reqwest = { default-features = false, version = "0.12.23" }
 tower-layer = { default-features = false, version = "0.3.3" }
 attribute-derive = { default-features = false, version = "0.10.3" }
 insta = { default-features = false, version = "1.43.1" }
 codee = { default-features = false, version = "0.3.0" }
-actix-http = { default-features = false, version = "3.11.0" }
+actix-http = { default-features = false, version = "3.11.1" }
 wasm-bindgen-test = { default-features = false, version = "0.3.50" }
-rustversion = { default-features = false, version = "1.0.21" }
+rustversion = { default-features = false, version = "1.0.22" }
 getrandom = { default-features = false, version = "0.3.3" }
 actix-files = { default-features = false, version = "0.6.6" }
-async-lock = { default-features = false, version = "3.4.0" }
+async-lock = { default-features = false, version = "3.4.1" }
 base16 = { default-features = false, version = "0.2.1" }
 digest = { default-features = false, version = "0.10.7" }
 sha2 = { default-features = false, version = "0.10.8" }

examples/regression/e2e/features/issue_4005.feature

@@ -0,0 +1,7 @@
+@check_issue_4005
+Feature: Check that issue 4005 does not reappear
+
+	Scenario: The second item is selected.
+		Given I see the app
+		And I can access regression test 4005
+		Then I see the value of select is 2

examples/regression/e2e/features/issue_4217.feature

@@ -0,0 +1,9 @@
+@check_issue_4217
+Feature: Check that issue 4217 does not reappear
+
+	Scenario: All items are selected.
+		Given I see the app
+		And I can access regression test 4217
+		Then I see option1 is selected
+		And I see option2 is selected
+		And I see option3 is selected

examples/regression/e2e/tests/fixtures/check.rs

@@ -18,3 +18,28 @@ pub async fn element_exists(client: &Client, id: &str) -> Result<()> {
         .expect(&format!("could not find element with id `{id}`"));
     Ok(())
 }
+
+pub async fn select_option_is_selected(
+    client: &Client,
+    id: &str,
+) -> Result<()> {
+    let el = find::element_by_id(client, id)
+        .await
+        .expect(&format!("could not find element with id `{id}`"));
+    let selected = el.prop("selected").await?;
+    assert_eq!(selected.as_deref(), Some("true"));
+    Ok(())
+}
+
+pub async fn element_value_is(
+    client: &Client,
+    id: &str,
+    expected: &str,
+) -> Result<()> {
+    let el = find::element_by_id(client, id)
+        .await
+        .expect(&format!("could not find element with id `{id}`"));
+    let value = el.prop("value").await?;
+    assert_eq!(value.as_deref(), Some(expected));
+    Ok(())
+}

examples/regression/e2e/tests/fixtures/world/check_steps.rs

@@ -25,3 +25,21 @@ async fn i_see_the_navbar(world: &mut AppWorld) -> Result<()> {
     check::element_exists(client, "nav").await?;
     Ok(())
 }
+
+#[then(regex = r"^I see ([\d\w]+) is selected$")]
+async fn i_see_the_select(world: &mut AppWorld, id: String) -> Result<()> {
+    let client = &world.client;
+    check::select_option_is_selected(client, &id).await?;
+    Ok(())
+}
+
+#[then(regex = r"^I see the value of (\w+) is (.*)$")]
+async fn i_see_the_value(
+    world: &mut AppWorld,
+    id: String,
+    value: String,
+) -> Result<()> {
+    let client = &world.client;
+    check::element_value_is(client, &id, &value).await?;
+    Ok(())
+}

examples/regression/src/app.rs

@@ -1,4 +1,7 @@
-use crate::{issue_4088::Routes4088, pr_4015::Routes4015, pr_4091::Routes4091};
+use crate::{
+    issue_4005::Routes4005, issue_4088::Routes4088, issue_4217::Routes4217,
+    pr_4015::Routes4015, pr_4091::Routes4091,
+};
 use leptos::prelude::*;
 use leptos_meta::{MetaTags, *};
 use leptos_router::{
@@ -37,6 +40,8 @@ pub fn App() -> impl IntoView {
                     <Routes4091/>
                     <Routes4015/>
                     <Routes4088/>
+                    <Routes4217/>
+                    <Routes4005/>
                 </Routes>
             </main>
         </Router>
@@ -59,6 +64,8 @@ fn HomePage() -> impl IntoView {
                 <li><a href="/4091/">"4091"</a></li>
                 <li><a href="/4015/">"4015"</a></li>
                 <li><a href="/4088/">"4088"</a></li>
+                <li><a href="/4217/">"4217"</a></li>
+                <li><a href="/4005/">"4005"</a></li>
             </ul>
         </nav>
     }

examples/regression/src/issue_4005.rs

@@ -0,0 +1,24 @@
+use leptos::prelude::*;
+#[allow(unused_imports)]
+use leptos_router::{
+    components::Route, path, MatchNestedRoutes, NavigateOptions,
+};
+
+#[component]
+pub fn Routes4005() -> impl MatchNestedRoutes + Clone {
+    view! {
+        <Route path=path!("4005") view=Issue4005/>
+    }
+    .into_inner()
+}
+
+#[component]
+fn Issue4005() -> impl IntoView {
+    view! {
+        <select id="select" prop:value="2">
+            <option value="1">"Option 1"</option>
+            <option value="2">"Option 2"</option>
+            <option value="3">"Option 3"</option>
+        </select>
+    }
+}

examples/regression/src/issue_4217.rs

@@ -0,0 +1,24 @@
+use leptos::prelude::*;
+#[allow(unused_imports)]
+use leptos_router::{
+    components::Route, path, MatchNestedRoutes, NavigateOptions,
+};
+
+#[component]
+pub fn Routes4217() -> impl MatchNestedRoutes + Clone {
+    view! {
+        <Route path=path!("4217") view=Issue4217/>
+    }
+    .into_inner()
+}
+
+#[component]
+fn Issue4217() -> impl IntoView {
+    view! {
+        <select multiple=true>
+            <option id="option1" value="1" selected>"Option 1"</option>
+            <option id="option2" value="2" selected>"Option 2"</option>
+            <option id="option3" value="3" selected>"Option 3"</option>
+        </select>
+    }
+}

examples/regression/src/lib.rs

@@ -1,5 +1,7 @@
 pub mod app;
+mod issue_4005;
 mod issue_4088;
+mod issue_4217;
 mod pr_4015;
 mod pr_4091;
 

integrations/axum/Cargo.toml

@@ -4,7 +4,7 @@ authors = ["Greg Johnston"]
 license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"
 description = "Axum integrations for the Leptos web framework."
-version = "0.8.5"
+version = "0.8.6"
 rust-version.workspace = true
 edition.workspace = true
 

integrations/axum/src/lib.rs

@@ -1177,7 +1177,7 @@ where
     generate_route_list_with_exclusions_and_ssg(app_fn, None).0
 }
 
-/// Generates a list of all routes defined in Leptos's Router in your app. We can then use t.clone()his to automatically
+/// Generates a list of all routes defined in Leptos's Router in your app. We can then use this to automatically
 /// create routes in Axum's Router without having to use wildcard matching or fallbacks. Takes in your root app Element
 /// as an argument so it can walk you app tree. This version is tailored to generate Axum compatible paths.
 #[cfg_attr(
@@ -2061,10 +2061,12 @@ where
                         req,
                         |app, chunks, _supports_ooo| {
                             Box::pin(async move {
-                                let app = app
-                                    .to_html_stream_in_order()
-                                    .collect::<String>()
-                                    .await;
+                                let app = if cfg!(feature = "islands-router") {
+                                    app.to_html_stream_in_order_branching()
+                                } else {
+                                    app.to_html_stream_in_order()
+                                };
+                                let app = app.collect::<String>().await;
                                 let chunks = chunks();
                                 Box::pin(once(async move { app }).chain(chunks))
                                     as PinnedStream<String>

leptos/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "leptos"
-version = "0.8.6"
+version = "0.8.8"
 authors = ["Greg Johnston"]
 license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"

leptos/src/children.rs

@@ -262,6 +262,16 @@ where
     }
 }
 
+impl<C> From<View<C>> for ViewFn
+where
+    C: Clone + Send + Sync + 'static,
+    View<C>: IntoAny,
+{
+    fn from(value: View<C>) -> Self {
+        Self(Arc::new(move || value.clone().into_any()))
+    }
+}
+
 impl ViewFn {
     /// Execute the wrapped function
     pub fn run(&self) -> AnyView {
@@ -289,6 +299,16 @@ where
     }
 }
 
+impl<C> From<View<C>> for ViewFnOnce
+where
+    C: Send + Sync + 'static,
+    View<C>: IntoAny,
+{
+    fn from(value: View<C>) -> Self {
+        Self(Box::new(move || value.into_any()))
+    }
+}
+
 impl ViewFnOnce {
     /// Execute the wrapped function
     pub fn run(self) -> AnyView {

leptos/src/hydration/reload_script.js

@@ -1,3 +1,7 @@
+if (window.location.protocol === 'https:') {
+	protocol = 'wss://';
+}
+
 let host = window.location.hostname;
 let ws = new WebSocket(`${protocol}${host}:${reload_port}/live_reload`);
 ws.onmessage = (ev) => {

leptos/src/lib.rs

@@ -85,12 +85,22 @@
 //! # Feature Flags
 //!
 //! - **`nightly`**: On `nightly` Rust, enables the function-call syntax for signal getters and setters.
+//!   Also enables some experimental optimizations that improve the handling of static strings and
+//!   the performance of the `template! {}` macro.
 //! - **`csr`** Client-side rendering: Generate DOM nodes in the browser.
 //! - **`ssr`** Server-side rendering: Generate an HTML string (typically on the server).
+//! - **`islands`** Activates “islands mode,” in which components are not made interactive on the
+//!   client unless they use the `#[island]` macro.
 //! - **`hydrate`** Hydration: use this to add interactivity to an SSRed Leptos app.
-//! - **`rkyv`** In SSR/hydrate mode, uses [`rkyv`](https://docs.rs/rkyv/latest/rkyv/) to serialize resources and send them
-//!   from the server to the client.
+//! - **`nonce`** Adds support for nonces to be added as part of a Content Security Policy.
+//! - **`rkyv`** In SSR/hydrate mode, enables using [`rkyv`](https://docs.rs/rkyv/latest/rkyv/) to serialize resources.
 //! - **`tracing`** Adds support for [`tracing`](https://docs.rs/tracing/latest/tracing/).
+//! - **`trace-component-props`** Adds `tracing` support for component props.
+//! - **`delegation`** Uses event delegation rather than the browser’s native event handling
+//!   system. (This improves the performance of creating large numbers of elements simultaneously,
+//!   in exchange for occasional edge cases in which events behave differently from native browser
+//!   events.)
+//! - **`rustls`** Use `rustls` for server functions.
 //!
 //! **Important Note:** You must enable one of `csr`, `hydrate`, or `ssr` to tell Leptos
 //! which mode your app is operating in. You should only enable one of these per build target,
@@ -215,12 +225,15 @@ pub mod error {
 
 /// Control-flow components like `<Show>`, `<For>`, and `<Await>`.
 pub mod control_flow {
-    pub use crate::{animated_show::*, await_::*, for_loop::*, show::*};
+    pub use crate::{
+        animated_show::*, await_::*, for_loop::*, show::*, show_let::*,
+    };
 }
 mod animated_show;
 mod await_;
 mod for_loop;
 mod show;
+mod show_let;
 
 /// A component that allows rendering a component somewhere else.
 pub mod portal;
@@ -301,12 +314,17 @@ pub mod logging {
 /// Utilities for working with asynchronous tasks.
 pub mod task {
     use any_spawner::Executor;
+    use reactive_graph::computed::ScopedFuture;
     use std::future::Future;
 
     /// Spawns a thread-safe [`Future`].
+    ///
+    /// This will be run with the current reactive owner and observer using a [`ScopedFuture`].
     #[track_caller]
     #[inline(always)]
     pub fn spawn(fut: impl Future<Output = ()> + Send + 'static) {
+        let fut = ScopedFuture::new(fut);
+
         #[cfg(not(target_family = "wasm"))]
         Executor::spawn(fut);
 

leptos/src/show_let.rs

@@ -0,0 +1,162 @@
+use crate::{children::ViewFn, IntoView};
+use leptos_macro::component;
+use reactive_graph::traits::Get;
+use std::{marker::PhantomData, sync::Arc};
+use tachys::either::Either;
+
+/// Like `<Show>` but for `Option`. This is a shortcut for
+///
+/// ```ignore
+/// value.map(|value| {
+///     view! { ... }
+/// })
+/// ```
+///
+/// If you specify a `fallback` it is equvalent to
+///
+/// ```ignore
+/// value
+///     .map(
+///         |value| children(value),
+///     )
+///     .unwrap_or_else(fallback)
+/// ```
+///
+/// ## Example
+///
+/// ```
+/// # use leptos::prelude::*;
+/// #
+/// # #[component]
+/// # pub fn Example() -> impl IntoView {
+/// let (opt_value, set_opt_value) = signal(None::<i32>);
+///
+/// view! {
+///     <ShowLet some=opt_value let:value>
+///         "We have a value: " {value}
+///     </ShowLet>
+/// }
+/// # }
+/// ```
+///
+/// You can also specify a fallback:
+/// ```
+/// # use leptos::prelude::*;
+/// #
+/// # #[component]
+/// # pub fn Example() -> impl IntoView {
+/// let (opt_value, set_opt_value) = signal(None::<i32>);
+///
+/// view! {
+///     <ShowLet some=opt_value let:value fallback=|| "Got nothing">
+///         "We have a value: " {value}
+///     </ShowLet>
+/// }
+/// # }
+/// ```
+///
+/// In addition to signals you can also use a closure that returns an `Option`:
+///
+/// ```
+/// # use leptos::prelude::*;
+/// #
+/// # #[component]
+/// # pub fn Example() -> impl IntoView {
+/// let (opt_value, set_opt_value) = signal(None::<i32>);
+///
+/// view! {
+///     <ShowLet some=move || opt_value.get().map(|v| v * 2) let:value>
+///         "We have a value: " {value}
+///     </ShowLet>
+/// }
+/// # }
+/// ```
+#[component]
+pub fn ShowLet<T, ChFn, V, M>(
+    /// The children will be shown whenever `value` is `Some`.
+    ///
+    /// They take the inner value as an argument. Use `let:` to bind the value to a variable.
+    children: ChFn,
+
+    /// A signal of type `Option` or a closure that returns an `Option`.
+    /// If the value is `Some`, the children will be shown.
+    /// Otherwise the fallback will be shown, if present.
+    some: impl IntoOptionGetter<T, M>,
+
+    /// A closure that returns what gets rendered when the value is `None`.
+    /// By default this is the empty view.
+    ///
+    /// You can think of it as the closure inside `.unwrap_or_else(|| fallback())`.
+    #[prop(optional, into)]
+    fallback: ViewFn,
+
+    /// Marker for generic parameters. Ignore this.
+    #[prop(optional)]
+    _marker: PhantomData<(T, M)>,
+) -> impl IntoView
+where
+    ChFn: Fn(T) -> V + Send + Clone + 'static,
+    V: IntoView + 'static,
+    T: 'static,
+{
+    let getter = some.into_option_getter();
+
+    move || {
+        let children = children.clone();
+        let fallback = fallback.clone();
+
+        getter
+            .run()
+            .map(move |t| Either::Left(children(t)))
+            .unwrap_or_else(move || Either::Right(fallback.run()))
+    }
+}
+
+/// Servers as a wrapper for both, an `Option` signal or a closure that returns an `Option`.
+pub struct OptionGetter<T>(Arc<dyn Fn() -> Option<T> + Send + Sync + 'static>);
+
+impl<T> Clone for OptionGetter<T> {
+    fn clone(&self) -> Self {
+        Self(Arc::clone(&self.0))
+    }
+}
+
+impl<T> OptionGetter<T> {
+    /// Runs the getter and returns the result.
+    pub fn run(&self) -> Option<T> {
+        (self.0)()
+    }
+}
+
+/// Conversion trait for creating an `OptionGetter` from a closure or a signal.
+pub trait IntoOptionGetter<T, M> {
+    /// Converts the given value into an `OptionGetter`.
+    fn into_option_getter(self) -> OptionGetter<T>;
+}
+
+/// Marker type for creating an `OptionGetter` from a closure.
+/// Used so that the compiler doesn't complain about double implementations of the trait `IntoOptionGetter`.
+pub struct FunctionMarker;
+
+impl<T, F> IntoOptionGetter<T, FunctionMarker> for F
+where
+    F: Fn() -> Option<T> + Send + Sync + 'static,
+{
+    fn into_option_getter(self) -> OptionGetter<T> {
+        OptionGetter(Arc::new(self))
+    }
+}
+
+/// Marker type for creating an `OptionGetter` from a signal.
+/// Used so that the compiler doesn't complain about double implementations of the trait `IntoOptionGetter`.
+pub struct SignalMarker;
+
+impl<T, S> IntoOptionGetter<T, SignalMarker> for S
+where
+    S: Get<Value = Option<T>> + Clone + Send + Sync + 'static,
+{
+    fn into_option_getter(self) -> OptionGetter<T> {
+        let cloned = self.clone();
+        OptionGetter(Arc::new(move || cloned.get()))
+    }
+}

leptos/src/suspense_component.rs

@@ -32,12 +32,12 @@ use tachys::{
 };
 use throw_error::ErrorHookFuture;
 
-/// If any [`Resource`](leptos_reactive::Resource) is read in the `children` of this
+/// If any [`Resource`](crate::prelude::Resource) is read in the `children` of this
 /// component, it will show the `fallback` while they are loading. Once all are resolved,
 /// it will render the `children`.
 ///
 /// Each time one of the resources is loading again, it will fall back. To keep the current
-/// children instead, use [Transition](crate::Transition).
+/// children instead, use [Transition](crate::prelude::Transition).
 ///
 /// Note that the `children` will be rendered initially (in order to capture the fact that
 /// those resources are read under the suspense), so you cannot assume that resources read

leptos/src/transition.rs

@@ -16,11 +16,11 @@ use reactive_graph::{
 use slotmap::{DefaultKey, SlotMap};
 use tachys::reactive_graph::OwnedView;
 
-/// If any [`Resource`](leptos_reactive::Resource) is read in the `children` of this
+/// If any [`Resource`](crate::prelude::Resource) is read in the `children` of this
 /// component, it will show the `fallback` while they are loading. Once all are resolved,
 /// it will render the `children`.
 ///
-/// Unlike [`Suspense`](crate::Suspense), this will not fall
+/// Unlike [`Suspense`](crate::prelude::Suspense), this will not fall
 /// back to the `fallback` state if there are further changes after the initial load.
 ///
 /// Note that the `children` will be rendered initially (in order to capture the fact that

leptos_config/Cargo.toml

@@ -5,7 +5,7 @@ license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"
 description = "Configuration for the Leptos web framework."
 readme = "../README.md"
-version = "0.8.5"
+version = "0.8.7"
 rust-version.workspace = true
 edition.workspace = true
 

leptos_dom/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "leptos_dom"
-version = "0.8.5"
+version = "0.8.6"
 authors = ["Greg Johnston"]
 license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"

leptos_dom/src/helpers.rs

@@ -258,15 +258,7 @@ pub fn request_idle_callback_with_handle(
 ///
 /// <div class="warning">The task is called outside of the ownership tree, this means that if you want to access for example the context you need to reestablish the owner.</div>
 pub fn queue_microtask(task: impl FnOnce() + 'static) {
-    use js_sys::{Function, Reflect};
-
-    let task = Closure::once_into_js(task);
-    let window = web_sys::window().expect("window not available");
-    let queue_microtask =
-        Reflect::get(&window, &JsValue::from_str("queueMicrotask"))
-            .expect("queueMicrotask not available");
-    let queue_microtask = queue_microtask.unchecked_into::<Function>();
-    _ = queue_microtask.call1(&JsValue::UNDEFINED, &task);
+    tachys::renderer::dom::queue_microtask(task);
 }
 
 /// Handle that is generated by [set_timeout_with_handle] and can be used to clear the timeout.
@@ -593,7 +585,8 @@ impl WindowListenerHandle {
     }
 }
 
-fn is_server() -> bool {
+/// Returns `true` if the current environment is a server.
+pub fn is_server() -> bool {
     #[cfg(feature = "hydration")]
     {
         Owner::current_shared_context()
@@ -605,3 +598,8 @@ fn is_server() -> bool {
         false
     }
 }
+
+/// Returns `true` if the current environment is a browser.
+pub fn is_browser() -> bool {
+    !is_server()
+}

leptos_macro/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "leptos_macro"
-version = "0.8.6"
+version = "0.8.8"
 authors = ["Greg Johnston"]
 license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"

leptos_macro/src/component.rs

@@ -1360,7 +1360,10 @@ fn prop_to_doc(
 }
 
 pub fn unmodified_fn_name_from_fn_name(ident: &Ident) -> Ident {
-    Ident::new(&format!("__{ident}"), ident.span())
+    Ident::new(
+        &format!("__component_{}", ident.to_string().to_case(Snake)),
+        ident.span(),
+    )
 }
 
 /// Converts all `impl Trait`s in a function signature to use generic params instead.

leptos_macro/src/lib.rs

@@ -683,7 +683,11 @@ fn component_macro(
     let parse_result = syn::parse::<component::Model>(s);
 
     if let (Ok(ref mut unexpanded), Ok(model)) = (&mut dummy, parse_result) {
-        let expanded = model.is_transparent(is_transparent).is_lazy(is_lazy).with_island(island).into_token_stream();
+        let expanded = model
+            .is_transparent(is_transparent)
+            .is_lazy(is_lazy)
+            .with_island(island)
+            .into_token_stream();
         if !matches!(unexpanded.vis, Visibility::Public(_)) {
             unexpanded.vis = Visibility::Public(Pub {
                 span: unexpanded.vis.span(),
@@ -696,7 +700,7 @@ fn component_macro(
             #expanded
 
             #[doc(hidden)]
-            #[allow(non_snake_case, dead_code, clippy::too_many_arguments, clippy::needless_lifetimes)]
+            #[allow(clippy::too_many_arguments, clippy::needless_lifetimes)]
             #unexpanded
         }
     } else {
@@ -705,7 +709,7 @@ fn component_macro(
                 dummy.sig.ident = unmodified_fn_name_from_fn_name(&dummy.sig.ident);
                 quote! {
                     #[doc(hidden)]
-                    #[allow(non_snake_case, dead_code, clippy::too_many_arguments, clippy::needless_lifetimes)]
+                    #[allow(clippy::too_many_arguments, clippy::needless_lifetimes)]
                     #dummy
                 }
             }

leptos_server/Cargo.toml

@@ -44,7 +44,8 @@ denylist = ["tracing"]
 max_combination_size = 2
 
 [package.metadata.docs.rs]
-rustdoc-args = ["--generate-link-to-definition"]
+rustdoc-args = ["--generate-link-to-definition", "--cfg", "docsrs"]
+all-features = true
 
 [lints.rust]
 unexpected_cfgs = { level = "warn", check-cfg = ['cfg(leptos_debuginfo)'] }

leptos_server/src/once_resource.rs

@@ -386,6 +386,7 @@ T: Send + Sync + 'static,
 }
 
 #[cfg(feature = "serde-wasm-bindgen")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-wasm-bindgen")))]
 impl<T> ArcOnceResource<T, JsonSerdeWasmCodec>
 where
 T: Send + Sync + 'static,
@@ -418,6 +419,7 @@ fut: impl Future<Output = T> + Send + 'static
     }
 }
 #[cfg(feature = "miniserde")]
+#[cfg_attr(docsrs, doc(cfg(feature = "miniserde")))]
 impl<T> ArcOnceResource<T, MiniserdeCodec>
 where
     T: Send + Sync + 'static,
@@ -451,6 +453,7 @@ where
 }
 
 #[cfg(feature = "serde-lite")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-lite")))]
 impl<T> ArcOnceResource<T, SerdeLite<JsonSerdeCodec>>
 where
 T: Send + Sync + 'static,
@@ -484,6 +487,7 @@ fut: impl Future<Output = T> + Send + 'static
 }
 
 #[cfg(feature = "rkyv")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rkyv")))]
 impl<T> ArcOnceResource<T, RkyvCodec>
 where
     T: Send + Sync + 'static,
@@ -748,6 +752,7 @@ T: Send + Sync + 'static,
 }
 
 #[cfg(feature = "serde-wasm-bindgen")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-wasm-bindgen")))]
 impl<T> OnceResource<T, JsonSerdeWasmCodec>
 where
 T: Send + Sync + 'static,
@@ -780,6 +785,7 @@ fut: impl Future<Output = T> + Send + 'static
     }
 }
 #[cfg(feature = "miniserde")]
+#[cfg_attr(docsrs, doc(cfg(feature = "miniserde")))]
 impl<T> OnceResource<T, MiniserdeCodec>
 where
     T: Send + Sync + 'static,
@@ -813,6 +819,7 @@ where
 }
 
 #[cfg(feature = "serde-lite")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-lite")))]
 impl<T> OnceResource<T, SerdeLite<JsonSerdeCodec>>
 where
 T: Send + Sync + 'static,
@@ -846,6 +853,7 @@ fut: impl Future<Output = T> + Send + 'static
 }
 
 #[cfg(feature = "rkyv")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rkyv")))]
 impl<T> OnceResource<T, RkyvCodec>
 where
     T: Send + Sync + 'static,

leptos_server/src/resource.rs

@@ -709,6 +709,7 @@ where
 }
 
 #[cfg(feature = "rkyv")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rkyv")))]
 impl<T> ArcResource<T, RkyvCodec>
 where
     RkyvCodec: Encoder<T> + Decoder<T>,
@@ -1048,6 +1049,7 @@ where
 }
 
 #[cfg(feature = "serde-wasm-bindgen")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-wasm-bindgen")))]
 impl<T> Resource<T, JsonSerdeWasmCodec>
 where
     JsonSerdeWasmCodec: Encoder<T> + Decoder<T>,
@@ -1105,6 +1107,7 @@ where
 }
 
 #[cfg(feature = "miniserde")]
+#[cfg_attr(docsrs, doc(cfg(feature = "miniserde")))]
 impl<T> Resource<T, MiniserdeCodec>
 where
     MiniserdeCodec: Encoder<T> + Decoder<T>,
@@ -1164,6 +1167,7 @@ where
 }
 
 #[cfg(feature = "serde-lite")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-lite")))]
 impl<T> Resource<T, SerdeLite<JsonSerdeCodec>>
 where
     SerdeLite<JsonSerdeCodec>: Encoder<T> + Decoder<T>,
@@ -1222,6 +1226,7 @@ where
 }
 
 #[cfg(feature = "rkyv")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rkyv")))]
 impl<T> Resource<T, RkyvCodec>
 where
     RkyvCodec: Encoder<T> + Decoder<T>,

leptos_server/src/shared.rs

@@ -80,6 +80,7 @@ where
 }
 
 #[cfg(feature = "serde-lite")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-lite")))]
 impl<T> SharedValue<T, SerdeLite<JsonSerdeCodec>>
 where
     SerdeLite<JsonSerdeCodec>: Encoder<T> + Decoder<T>,
@@ -102,6 +103,7 @@ where
 }
 
 #[cfg(feature = "serde-wasm-bindgen")]
+#[cfg_attr(docsrs, doc(cfg(feature = "serde-wasm-bindgen")))]
 impl<T> SharedValue<T, JsonSerdeWasmCodec>
 where
     JsonSerdeWasmCodec: Encoder<T> + Decoder<T>,
@@ -124,6 +126,7 @@ where
 }
 
 #[cfg(feature = "miniserde")]
+#[cfg_attr(docsrs, doc(cfg(feature = "miniserde")))]
 impl<T> SharedValue<T, MiniserdeCodec>
 where
     MiniserdeCodec: Encoder<T> + Decoder<T>,
@@ -146,6 +149,7 @@ where
 }
 
 #[cfg(feature = "rkyv")]
+#[cfg_attr(docsrs, doc(cfg(feature = "rkyv")))]
 impl<T> SharedValue<T, RkyvCodec>
 where
     RkyvCodec: Encoder<T> + Decoder<T>,

reactive_graph/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "reactive_graph"
-version = "0.2.5"
+version = "0.2.6"
 authors = ["Greg Johnston"]
 license = "MIT"
 readme = "../README.md"
@@ -27,6 +27,7 @@ async-lock = { workspace = true, default-features = true }
 send_wrapper = { features = [
   "futures",
 ], workspace = true, default-features = true }
+indexmap = { workspace = true, default-features = true }
 
 [target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies]
 web-sys = { version = "0.3.77", features = ["console"] }

reactive_graph/src/actions/action.rs

@@ -1,7 +1,8 @@
 use crate::{
-    computed::{ArcMemo, Memo},
+    computed::{ArcMemo, Memo, ScopedFuture},
     diagnostics::is_suppressing_resource_load,
-    owner::{ArcStoredValue, ArenaItem},
+    graph::untrack,
+    owner::{ArcStoredValue, ArenaItem, Owner},
     send_wrapper_ext::SendOption,
     signal::{ArcMappedSignal, ArcRwSignal, MappedSignal, RwSignal},
     traits::{DefinedAt, Dispose, Get, GetUntracked, GetValue, Update, Write},
@@ -199,13 +200,18 @@ where
         I: Send + Sync,
         O: Send + Sync,
     {
+        let owner = Owner::current().unwrap_or_default();
         ArcAction {
             in_flight: ArcRwSignal::new(0),
             input: ArcRwSignal::new(SendOption::new(None)),
             value: ArcRwSignal::new(SendOption::new(value)),
             version: Default::default(),
             dispatched: Default::default(),
-            action_fn: Arc::new(move |input| Box::pin(action_fn(input))),
+            action_fn: Arc::new(move |input| {
+                Box::pin(owner.with(|| {
+                    ScopedFuture::new_untracked(untrack(|| action_fn(input)))
+                }))
+            }),
             #[cfg(any(debug_assertions, leptos_debuginfo))]
             defined_at: Location::caller(),
         }
@@ -370,6 +376,7 @@ where
         F: Fn(&I) -> Fu + 'static,
         Fu: Future<Output = O> + 'static,
     {
+        let owner = Owner::current().unwrap_or_default();
         let action_fn = SendWrapper::new(action_fn);
         ArcAction {
             in_flight: ArcRwSignal::new(0),
@@ -378,7 +385,9 @@ where
             version: Default::default(),
             dispatched: Default::default(),
             action_fn: Arc::new(move |input| {
-                Box::pin(SendWrapper::new(action_fn(input)))
+                Box::pin(SendWrapper::new(owner.with(|| {
+                    ScopedFuture::new_untracked(untrack(|| action_fn(input)))
+                })))
             }),
             #[cfg(any(debug_assertions, leptos_debuginfo))]
             defined_at: Location::caller(),

reactive_graph/src/computed/async_derived/arc_async_derived.rs

@@ -521,9 +521,10 @@ impl<T: 'static> ArcAsyncDerived<T> {
     {
         let fun = move || {
             let fut = fun();
-            let fut = ScopedFuture::new_untracked(async move {
-                SendOption::new(Some(fut.await))
-            });
+            let fut =
+                ScopedFuture::new_untracked_with_diagnostics(async move {
+                    SendOption::new(Some(fut.await))
+                });
             #[cfg(feature = "sandboxed-arenas")]
             let fut = Sandboxed::new(fut);
             fut

reactive_graph/src/computed/async_derived/mod.rs

@@ -54,11 +54,55 @@ impl<Fut> ScopedFuture<Fut> {
             fut,
         }
     }
+
+    #[doc(hidden)]
+    #[track_caller]
+    pub fn new_untracked_with_diagnostics(
+        fut: Fut,
+    ) -> ScopedFutureUntrackedWithDiagnostics<Fut> {
+        let owner = Owner::current().unwrap_or_default();
+        ScopedFutureUntrackedWithDiagnostics {
+            owner,
+            observer: None,
+            fut,
+        }
+    }
 }
 
 impl<Fut: Future> Future for ScopedFuture<Fut> {
     type Output = Fut::Output;
 
+    fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        let this = self.project();
+        this.owner.with(|| {
+            #[cfg(debug_assertions)]
+            let _maybe_guard = if this.observer.is_none() {
+                Some(crate::diagnostics::SpecialNonReactiveZone::enter())
+            } else {
+                None
+            };
+            this.observer.with_observer(|| this.fut.poll(cx))
+        })
+    }
+}
+
+pin_project! {
+    /// A [`Future`] wrapper that sets the [`Owner`] and [`Observer`] before polling the inner
+    /// `Future`, output of [`ScopedFuture::new_untracked_with_diagnostics`].
+    ///
+    /// In leptos 0.9 this will be replaced with `ScopedFuture` itself.
+    #[derive(Clone)]
+    pub struct ScopedFutureUntrackedWithDiagnostics<Fut> {
+        owner: Owner,
+        observer: Option<AnySubscriber>,
+        #[pin]
+        fut: Fut,
+    }
+}
+
+impl<Fut: Future> Future for ScopedFutureUntrackedWithDiagnostics<Fut> {
+    type Output = Fut::Output;
+
     fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
         let this = self.project();
         this.owner

reactive_graph/src/graph/sets.rs

@@ -6,11 +6,14 @@
 //! a linear search is not significantly more expensive than a hash and lookup.
 
 use super::{AnySource, AnySubscriber, Source};
-use core::slice;
-use std::{mem, vec::IntoIter};
+use indexmap::IndexSet;
+use rustc_hash::FxHasher;
+use std::{hash::BuildHasherDefault, mem};
+
+type FxIndexSet<T> = IndexSet<T, BuildHasherDefault<FxHasher>>;
 
 #[derive(Default, Clone, Debug)]
-pub struct SourceSet(Vec<AnySource>);
+pub struct SourceSet(FxIndexSet<AnySource>);
 
 impl SourceSet {
     pub fn new() -> Self {
@@ -18,16 +21,14 @@ impl SourceSet {
     }
 
     pub fn insert(&mut self, source: AnySource) {
-        self.0.push(source);
+        self.0.insert(source);
     }
 
     pub fn remove(&mut self, source: &AnySource) {
-        if let Some(pos) = self.0.iter().position(|s| s == source) {
-            self.0.remove(pos);
-        }
+        self.0.shift_remove(source);
     }
 
-    pub fn take(&mut self) -> Vec<AnySource> {
+    pub fn take(&mut self) -> FxIndexSet<AnySource> {
         mem::take(&mut self.0)
     }
 
@@ -44,7 +45,7 @@ impl SourceSet {
 
 impl IntoIterator for SourceSet {
     type Item = AnySource;
-    type IntoIter = IntoIter<AnySource>;
+    type IntoIter = <FxIndexSet<AnySource> as IntoIterator>::IntoIter;
 
     fn into_iter(self) -> Self::IntoIter {
         self.0.into_iter()
@@ -53,40 +54,36 @@ impl IntoIterator for SourceSet {
 
 impl<'a> IntoIterator for &'a SourceSet {
     type Item = &'a AnySource;
-    type IntoIter = slice::Iter<'a, AnySource>;
+    type IntoIter = <&'a FxIndexSet<AnySource> as IntoIterator>::IntoIter;
 
     fn into_iter(self) -> Self::IntoIter {
         self.0.iter()
     }
 }
 #[derive(Debug, Default, Clone)]
-pub struct SubscriberSet(Vec<AnySubscriber>);
+pub struct SubscriberSet(FxIndexSet<AnySubscriber>);
 
 impl SubscriberSet {
     pub fn new() -> Self {
-        Self(Vec::with_capacity(2))
+        Self(FxIndexSet::with_capacity_and_hasher(2, Default::default()))
     }
 
     pub fn subscribe(&mut self, subscriber: AnySubscriber) {
-        if !self.0.contains(&subscriber) {
-            self.0.push(subscriber);
-        }
+        self.0.insert(subscriber);
     }
 
     pub fn unsubscribe(&mut self, subscriber: &AnySubscriber) {
-        if let Some(pos) = self.0.iter().position(|s| s == subscriber) {
-            // note: do not use `.swap_remove()` here.
-            // using `.remove()` is slower because it shifts other items
-            // but it maintains the order of the subscribers, which is important
-            // to correctness when you're using this to drive something like a UI,
-            // which can have nested effects, where the inner one assumes the outer
-            // has already run (for example, an outer effect that checks .is_some(),
-            // and an inner effect that unwraps)
-            self.0.remove(pos);
-        }
+        // note: do not use `.swap_remove()` here.
+        // using `.remove()` is slower because it shifts other items
+        // but it maintains the order of the subscribers, which is important
+        // to correctness when you're using this to drive something like a UI,
+        // which can have nested effects, where the inner one assumes the outer
+        // has already run (for example, an outer effect that checks .is_some(),
+        // and an inner effect that unwraps)
+        self.0.shift_remove(subscriber);
     }
 
-    pub fn take(&mut self) -> Vec<AnySubscriber> {
+    pub fn take(&mut self) -> FxIndexSet<AnySubscriber> {
         mem::take(&mut self.0)
     }
 
@@ -97,7 +94,7 @@ impl SubscriberSet {
 
 impl IntoIterator for SubscriberSet {
     type Item = AnySubscriber;
-    type IntoIter = IntoIter<AnySubscriber>;
+    type IntoIter = <FxIndexSet<AnySubscriber> as IntoIterator>::IntoIter;
 
     fn into_iter(self) -> Self::IntoIter {
         self.0.into_iter()
@@ -106,7 +103,7 @@ impl IntoIterator for SubscriberSet {
 
 impl<'a> IntoIterator for &'a SubscriberSet {
     type Item = &'a AnySubscriber;
-    type IntoIter = slice::Iter<'a, AnySubscriber>;
+    type IntoIter = <&'a FxIndexSet<AnySubscriber> as IntoIterator>::IntoIter;
 
     fn into_iter(self) -> Self::IntoIter {
         self.0.iter()

reactive_graph/src/wrappers.rs

@@ -257,6 +257,20 @@ pub mod read {
         }
     }
 
+    impl<T, S> From<ReadSignal<T, S>> for ArcSignal<T, S>
+    where
+        S: Storage<ArcReadSignal<T>> + Storage<T>,
+    {
+        #[track_caller]
+        fn from(value: ReadSignal<T, S>) -> Self {
+            Self {
+                inner: SignalTypes::ReadSignal(value.into()),
+                #[cfg(any(debug_assertions, leptos_debuginfo))]
+                defined_at: std::panic::Location::caller(),
+            }
+        }
+    }
+
     impl<T: Send + Sync> From<ArcRwSignal<T>> for ArcSignal<T, SyncStorage> {
         #[track_caller]
         fn from(value: ArcRwSignal<T>) -> Self {
@@ -268,6 +282,20 @@ pub mod read {
         }
     }
 
+    impl<T, S> From<RwSignal<T, S>> for ArcSignal<T, S>
+    where
+        S: Storage<ArcRwSignal<T>> + Storage<ArcReadSignal<T>> + Storage<T>,
+    {
+        #[track_caller]
+        fn from(value: RwSignal<T, S>) -> Self {
+            Self {
+                inner: SignalTypes::ReadSignal(value.read_only().into()),
+                #[cfg(any(debug_assertions, leptos_debuginfo))]
+                defined_at: std::panic::Location::caller(),
+            }
+        }
+    }
+
     impl<T, S> From<ArcMemo<T, S>> for ArcSignal<T, S>
     where
         S: Storage<T>,
@@ -282,6 +310,20 @@ pub mod read {
         }
     }
 
+    impl<T, S> From<Memo<T, S>> for ArcSignal<T, S>
+    where
+        S: Storage<ArcMemo<T, S>> + Storage<T>,
+    {
+        #[track_caller]
+        fn from(value: Memo<T, S>) -> Self {
+            Self {
+                inner: SignalTypes::Memo(value.into()),
+                #[cfg(any(debug_assertions, leptos_debuginfo))]
+                defined_at: std::panic::Location::caller(),
+            }
+        }
+    }
+
     impl<T, S> DefinedAt for ArcSignal<T, S>
     where
         S: Storage<T>,

reactive_stores_macro/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "reactive_stores_macro"
-version = "0.2.5"
+version = "0.2.6"
 authors = ["Greg Johnston"]
 license = "MIT"
 readme = "../README.md"

reactive_stores_macro/src/lib.rs

@@ -6,8 +6,8 @@ use syn::{
     parse::{Parse, ParseStream, Parser},
     punctuated::Punctuated,
     token::Comma,
-    ExprClosure, Field, Fields, Generics, Ident, Index, Meta, Result, Token,
-    Type, Variant, Visibility, WhereClause,
+    ExprClosure, Field, Fields, GenericParam, Generics, Ident, Index, Meta,
+    Result, Token, Type, TypeParam, Variant, Visibility, WhereClause,
 };
 
 #[proc_macro_error]
@@ -26,6 +26,103 @@ pub fn derive_patch(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
         .into()
 }
 
+/// Removes all constraints from generics arguments list.
+///
+/// # Example
+///
+/// ```rust,ignore
+/// struct Data<
+///     'a,
+///     T1: ToString + PatchField,
+///     T2: PatchField,
+///     T3: 'static + PatchField,
+///     T4,
+/// >
+/// where
+///     T3: ToString,
+///     T4: ToString + PatchField,
+/// {
+///     data1: &'a T1,
+///     data2: T2,
+///     data3: T3,
+///     data4: T4,
+/// }
+/// ```
+///
+/// Fort the struct above the `[syn::DeriveInput::parse]` will return the instance of [syn::Generics]
+/// which will conceptually look like this
+///
+/// ```text
+/// Generics:
+///     params:
+///        [
+///           'a,
+///            T1: ToString + PatchField,
+///            T2: PatchField,
+///            T3: 'static + PatchField,
+///            T4,
+///        ]
+///      where_clause:
+///        [
+///            T3: ToString,
+///            T4: ToString + PatchField,
+///        ]
+/// ```
+///
+/// This method would return a new instance of [syn::Generics] which will conceptually look like this
+///
+/// ```text
+/// Generics:
+///     params:
+///       [
+///           'a,
+///           T1,
+///           T2,
+///           T3,
+///           T4,
+///       ]
+///      where_clause:
+///       []
+/// ```
+///
+/// This is useful when you want to use a generic arguments list for `impl` sections for type definitions.
+fn remove_constraint_from_generics(generics: &Generics) -> Generics {
+    let mut new_generics = generics.clone();
+
+    // remove contraints directly placed in the generic arguments list
+    //
+    // For generics for `struct A<T: MyTrait>` the `T: MyTrait` becomes `T`
+    for param in new_generics.params.iter_mut() {
+        match param {
+            GenericParam::Lifetime(lifetime) => {
+                lifetime.bounds.clear(); // remove bounds
+                lifetime.colon_token = None;
+            }
+            GenericParam::Type(type_param) => {
+                type_param.bounds.clear(); // remove bounds
+                type_param.colon_token = None;
+                type_param.eq_token = None;
+                type_param.default = None;
+            }
+            GenericParam::Const(const_param) => {
+                // replaces const generic with type param without bounds which is basically an `ident` token
+                *param = GenericParam::Type(TypeParam {
+                    attrs: const_param.attrs.clone(),
+                    ident: const_param.ident.clone(),
+                    colon_token: None,
+                    bounds: Punctuated::new(),
+                    eq_token: None,
+                    default: None,
+                });
+            }
+        }
+    }
+
+    new_generics.where_clause = None; // remove where clause
+
+    new_generics
+}
+
 struct Model {
     vis: Visibility,
     name: Ident,
@@ -111,7 +208,9 @@ impl ToTokens for Model {
         } = &self;
         let any_store_field = Ident::new("AnyStoreField", Span::call_site());
         let trait_name = Ident::new(&format!("{name}StoreFields"), name.span());
+        let clear_generics = remove_constraint_from_generics(generics);
         let params = &generics.params;
+        let clear_params = &clear_generics.params;
         let generics_with_orig = quote! { <#any_store_field, #params> };
         let where_with_orig = {
             generics
@@ -124,17 +223,22 @@ impl ToTokens for Model {
                     } = &w;
                     quote! {
                         #where_token
-                            #any_store_field: #library_path::StoreField<Value = #name #generics>,
+                            #any_store_field: #library_path::StoreField<Value = #name < #clear_params > >,
                             #predicates
                     }
                 })
-                .unwrap_or_else(|| quote! { where #any_store_field: #library_path::StoreField<Value = #name #generics> })
+                .unwrap_or_else(|| quote! { where #any_store_field: #library_path::StoreField<Value = #name < #clear_params > > })
         };
 
         // define an extension trait that matches this struct
         // and implement that trait for all StoreFields
-        let (trait_fields, read_fields): (Vec<_>, Vec<_>) =
-            ty.to_field_data(&library_path, generics, &any_store_field, name);
+        let (trait_fields, read_fields): (Vec<_>, Vec<_>) = ty.to_field_data(
+            &library_path,
+            generics,
+            &clear_generics,
+            &any_store_field,
+            name,
+        );
 
         // read access
         tokens.extend(quote! {
@@ -144,7 +248,7 @@ impl ToTokens for Model {
                 #(#trait_fields)*
             }
 
-            impl #generics_with_orig #trait_name <AnyStoreField, #params> for AnyStoreField
+            impl #generics_with_orig #trait_name <AnyStoreField, #clear_params> for AnyStoreField
             #where_with_orig
             {
                #(#read_fields)*
@@ -158,6 +262,7 @@ impl ModelTy {
         &self,
         library_path: &TokenStream,
         generics: &Generics,
+        clear_generics: &Generics,
         any_store_field: &Ident,
         name: &Ident,
     ) -> (Vec<TokenStream>, Vec<TokenStream>) {
@@ -204,6 +309,7 @@ impl ModelTy {
                             library_path,
                             ident.as_ref(),
                             generics,
+                            clear_generics,
                             any_store_field,
                             name,
                             ty,
@@ -215,6 +321,7 @@ impl ModelTy {
                             library_path,
                             ident.as_ref(),
                             generics,
+                            clear_generics,
                             any_store_field,
                             name,
                             ty,
@@ -233,6 +340,7 @@ impl ModelTy {
                             library_path,
                             ident,
                             generics,
+                            clear_generics,
                             any_store_field,
                             name,
                             fields,
@@ -242,6 +350,7 @@ impl ModelTy {
                             library_path,
                             ident,
                             generics,
+                            clear_generics,
                             any_store_field,
                             name,
                             fields,
@@ -260,7 +369,8 @@ fn field_to_tokens(
     modes: Option<&[SubfieldMode]>,
     library_path: &proc_macro2::TokenStream,
     orig_ident: Option<&Ident>,
-    generics: &Generics,
+    _generics: &Generics,
+    clear_generics: &Generics,
     any_store_field: &Ident,
     name: &Ident,
     ty: &Type,
@@ -285,7 +395,7 @@ fn field_to_tokens(
                 SubfieldMode::Keyed(keyed_by, key_ty) => {
                     let signature = quote! {
                         #[track_caller]
-                        fn #ident(self) ->  #library_path::KeyedSubfield<#any_store_field, #name #generics, #key_ty, #ty>
+                        fn #ident(self) ->  #library_path::KeyedSubfield<#any_store_field, #name #clear_generics, #key_ty, #ty>
                     };
                     return if include_body {
                         quote! {
@@ -318,7 +428,7 @@ fn field_to_tokens(
     // default subfield
     if include_body {
         quote! {
-            fn #ident(self) ->  #library_path::Subfield<#any_store_field, #name #generics, #ty> {
+            fn #ident(self) ->  #library_path::Subfield<#any_store_field, #name #clear_generics, #ty> {
                 #library_path::Subfield::new(
                     self,
                     #idx.into(),
@@ -329,7 +439,7 @@ fn field_to_tokens(
         }
     } else {
         quote! {
-            fn #ident(self) ->  #library_path::Subfield<#any_store_field, #name #generics, #ty>;
+            fn #ident(self) ->  #library_path::Subfield<#any_store_field, #name #clear_generics, #ty>;
         }
     }
 }
@@ -339,7 +449,8 @@ fn variant_to_tokens(
     include_body: bool,
     library_path: &proc_macro2::TokenStream,
     ident: &Ident,
-    generics: &Generics,
+    _generics: &Generics,
+    clear_generics: &Generics,
     any_store_field: &Ident,
     name: &Ident,
     fields: &Fields,
@@ -408,7 +519,7 @@ fn variant_to_tokens(
                     // default subfield
                     if include_body {
                         quote! {
-                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #generics, #field_ty>> {
+                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #clear_generics, #field_ty>> {
                                 #library_path::StoreField::track_field(&self);
                                 let reader = #library_path::StoreField::reader(&self);
                                 let matches = reader
@@ -440,7 +551,7 @@ fn variant_to_tokens(
                         }
                     } else {
                         quote! {
-                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #generics, #field_ty>>;
+                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #clear_generics, #field_ty>>;
                         }
                     }
                 }));
@@ -491,7 +602,7 @@ fn variant_to_tokens(
                     // default subfield
                     if include_body {
                         quote! {
-                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #generics, #field_ty>> {
+                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #clear_generics, #field_ty>> {
                                 #library_path::StoreField::track_field(&self);
                                 let reader = #library_path::StoreField::reader(&self);
                                 let matches = reader
@@ -523,7 +634,7 @@ fn variant_to_tokens(
                         }
                     } else {
                         quote! {
-                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #generics, #field_ty>>;
+                            fn #combined_ident(self) -> Option<#library_path::Subfield<#any_store_field, #name #clear_generics, #field_ty>>;
                         }
                     }
                 }));
@@ -665,9 +776,14 @@ impl ToTokens for PatchModel {
             }
         };
 
+        let clear_generics = remove_constraint_from_generics(generics);
+        let params = clear_generics.params;
+        let where_clause = &generics.where_clause;
+
         // read access
         tokens.extend(quote! {
-            impl #library_path::PatchField for #name #generics
+            impl #generics #library_path::PatchField for #name <#params>
+               #where_clause
             {
                 fn patch_field(
                     &mut self,

router/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "leptos_router"
-version = "0.8.5"
+version = "0.8.6"
 authors = ["Greg Johnston", "Ben Wishovich"]
 license = "MIT"
 readme = "../README.md"

router/src/location/history.rs

@@ -221,6 +221,13 @@ impl LocationProvider for BrowserUrl {
     fn complete_navigation(&self, loc: &LocationChange) {
         let history = window().history().unwrap();
 
+        let current_path = self
+            .path_stack
+            .read_value()
+            .last()
+            .map(|url| url.to_full_path());
+        let add_to_stack = current_path.as_ref() != Some(&loc.value);
+
         if loc.replace {
             history
                 .replace_state_with_url(
@@ -229,7 +236,7 @@ impl LocationProvider for BrowserUrl {
                     Some(&loc.value),
                 )
                 .unwrap();
-        } else {
+        } else if add_to_stack {
             // push the "forward direction" marker
             let state = &loc.state.to_js_value();
             history
@@ -240,7 +247,9 @@ impl LocationProvider for BrowserUrl {
         // add this URL to the "path stack" for detecting back navigations, and
         // unset "navigating back" state
         if let Ok(url) = Self::current() {
-            self.path_stack.write_value().push(url);
+            if add_to_stack {
+                self.path_stack.write_value().push(url);
+            }
             self.is_back.set(false);
         }
 

router/src/nested_router.rs

@@ -10,8 +10,17 @@ use crate::{
 };
 use any_spawner::Executor;
 use either_of::{Either, EitherOf3};
-use futures::{channel::oneshot, future::join_all, FutureExt};
-use leptos::{attr::any_attribute::AnyAttribute, component, oco::Oco};
+use futures::{
+    channel::oneshot,
+    future::{join_all, AbortHandle, Abortable},
+    FutureExt,
+};
+use leptos::{
+    attr::any_attribute::AnyAttribute,
+    component,
+    oco::Oco,
+    prelude::{ArcStoredValue, WriteValue},
+};
 use or_poisoned::OrPoisoned;
 use reactive_graph::{
     computed::{ArcMemo, ScopedFuture},
@@ -68,6 +77,7 @@ where
     // held to keep the Owner alive until the router is dropped
     #[allow(unused)]
     outer_owner: Owner,
+    abort_navigation: ArcStoredValue<Option<AbortHandle>>,
 }
 
 impl<Loc, Defs, FalFn, Fal> Render for NestedRoutesView<Loc, Defs, FalFn>
@@ -134,6 +144,7 @@ where
             outlets,
             view,
             outer_owner,
+            abort_navigation: Default::default(),
         }
     }
 
@@ -183,28 +194,48 @@ where
                     0,
                 );
 
+                let (abort_handle, abort_registration) =
+                    AbortHandle::new_pair();
+
+                if let Some(prev_handle) =
+                    state.abort_navigation.write_value().replace(abort_handle)
+                {
+                    prev_handle.abort();
+                }
+
                 let location = self.location.clone();
                 let is_back = location
                     .as_ref()
                     .map(|nav| nav.is_back().get_untracked())
                     .unwrap_or(false);
                 Executor::spawn_local(async move {
-                    let triggers = join_all(preloaders).await;
-                    // tell each one of the outlet triggers that it's ready
-                    let notify = move || {
-                        for trigger in triggers {
-                            trigger.notify();
+                    let triggers = Abortable::new(
+                        join_all(preloaders),
+                        abort_registration,
+                    );
+                    if let Ok(triggers) = triggers.await {
+                        // tell each one of the outlet triggers that it's ready
+                        let notify = move || {
+                            for trigger in triggers {
+                                trigger.notify();
+                            }
+                        };
+                        if self.transition {
+                            start_view_transition(
+                                different_level,
+                                is_back,
+                                notify,
+                            );
+                        } else {
+                            notify();
                         }
-                    };
-                    if self.transition {
-                        start_view_transition(different_level, is_back, notify);
-                    } else {
-                        notify();
                     }
                 });
 
+                let abort_navigation = state.abort_navigation.clone();
                 Executor::spawn_local(async move {
                     join_all(full_loaders).await;
+                    _ = abort_navigation.write_value().take();
                     if let Some(set_is_routing) = self.set_is_routing {
                         set_is_routing.set(false);
                     }
@@ -463,6 +494,7 @@ where
             outlets,
             view,
             outer_owner,
+            abort_navigation: Default::default(),
         }
     }
 
@@ -514,6 +546,7 @@ where
             outlets,
             view,
             outer_owner,
+            abort_navigation: Default::default(),
         }
     }
 

scripts/bump.sh

@@ -12,8 +12,16 @@ for PKG in $PACKAGES; do
     MANIFEST_PATH="${PKG##*:::}"
     DIR=$(dirname "$MANIFEST_PATH")
 
-    # Check if any file in the package directory changed since the last tag
-    if git diff --quiet "$LAST_TAG"..HEAD -- "$DIR"; then
+    # Look for release commit for this member up to the last tag
+    RELEASE_COMMIT=$(git log --oneline --grep="^$NAME-v" --format="%H" "$LAST_TAG"..HEAD | head -n1)
+
+    if [[ -z "$RELEASE_COMMIT" ]]; then
+        # No release commit found, use the latest release tag commit
+        RELEASE_COMMIT=$(git rev-list -n 1 "$LAST_TAG")
+    fi
+
+    # Check if any file in the package directory changed since the member's release commit or latest tag release
+    if git diff --quiet "$RELEASE_COMMIT"..HEAD -- "$DIR"; then
         continue
     fi
 

server_fn/Cargo.toml

@@ -5,7 +5,7 @@ license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"
 description = "RPC for any web framework."
 readme = "../README.md"
-version = "0.8.5"
+version = "0.8.6"
 rust-version.workspace = true
 edition.workspace = true
 

server_fn/src/codec/patch.rs

@@ -30,8 +30,8 @@ where
         })?;
         Request::try_new_patch_bytes(
             path,
-            accepts,
             Encoding::CONTENT_TYPE,
+            accepts,
             data,
         )
     }

server_fn/src/codec/post.rs

@@ -28,7 +28,7 @@ where
         let data = Encoding::encode(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_post_bytes(path, accepts, Encoding::CONTENT_TYPE, data)
+        Request::try_new_post_bytes(path, Encoding::CONTENT_TYPE, accepts, data)
     }
 }
 

server_fn/src/codec/put.rs

@@ -28,7 +28,7 @@ where
         let data = Encoding::encode(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_put_bytes(path, accepts, Encoding::CONTENT_TYPE, data)
+        Request::try_new_put_bytes(path, Encoding::CONTENT_TYPE, accepts, data)
     }
 }
 

server_fn/src/codec/url.rs

@@ -13,7 +13,7 @@ pub struct GetUrl;
 /// Pass arguments as the URL-encoded body of a `POST` request.
 pub struct PostUrl;
 
-/// Pass arguments as the URL-encoded body of a `DELETE` request.
+/// Pass arguments as the URL-encoded query string of a `DELETE` request.
 /// **Note**: Browser support for `DELETE` requests without JS/WASM may be poor.
 /// Consider using a `POST` request if functionality without JS/WASM is required.
 pub struct DeleteUrl;
@@ -46,7 +46,7 @@ where
         let data = serde_qs::to_string(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_get(path, accepts, GetUrl::CONTENT_TYPE, &data)
+        Request::try_new_get(path, GetUrl::CONTENT_TYPE, accepts, &data)
     }
 }
 
@@ -85,7 +85,7 @@ where
         let qs = serde_qs::to_string(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_post(path, accepts, PostUrl::CONTENT_TYPE, qs)
+        Request::try_new_post(path, PostUrl::CONTENT_TYPE, accepts, qs)
     }
 }
 
@@ -124,7 +124,7 @@ where
         let data = serde_qs::to_string(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_delete(path, accepts, GetUrl::CONTENT_TYPE, &data)
+        Request::try_new_delete(path, DeleteUrl::CONTENT_TYPE, accepts, &data)
     }
 }
 
@@ -163,7 +163,7 @@ where
         let data = serde_qs::to_string(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_patch(path, accepts, GetUrl::CONTENT_TYPE, data)
+        Request::try_new_patch(path, PatchUrl::CONTENT_TYPE, accepts, data)
     }
 }
 
@@ -174,9 +174,9 @@ where
     E: FromServerFnError,
 {
     async fn from_req(req: Request) -> Result<Self, E> {
-        let string_data = req.as_query().unwrap_or_default();
+        let string_data = req.try_into_string().await?;
         let args = serde_qs::Config::new(5, false)
-            .deserialize_str::<Self>(string_data)
+            .deserialize_str::<Self>(&string_data)
             .map_err(|e| {
                 ServerFnErrorErr::Args(e.to_string()).into_app_error()
             })?;
@@ -202,7 +202,7 @@ where
         let data = serde_qs::to_string(&self).map_err(|e| {
             ServerFnErrorErr::Serialization(e.to_string()).into_app_error()
         })?;
-        Request::try_new_put(path, accepts, GetUrl::CONTENT_TYPE, data)
+        Request::try_new_put(path, PutUrl::CONTENT_TYPE, accepts, data)
     }
 }
 
@@ -213,9 +213,9 @@ where
     E: FromServerFnError,
 {
     async fn from_req(req: Request) -> Result<Self, E> {
-        let string_data = req.as_query().unwrap_or_default();
+        let string_data = req.try_into_string().await?;
         let args = serde_qs::Config::new(5, false)
-            .deserialize_str::<Self>(string_data)
+            .deserialize_str::<Self>(&string_data)
             .map_err(|e| {
                 ServerFnErrorErr::Args(e.to_string()).into_app_error()
             })?;

server_fn/src/error.rs

@@ -568,7 +568,7 @@ pub trait FromServerFnError: std::fmt::Debug + Sized + 'static {
     /// Converts a [`ServerFnErrorErr`] into the application-specific custom error type.
     fn from_server_fn_error(value: ServerFnErrorErr) -> Self;
 
-    /// Converts the custom error type to a [`String`].
+    /// Serializes the custom error type to bytes, according to the encoding given by `Self::Encoding`.
     fn ser(&self) -> Bytes {
         Self::Encoder::encode(self).unwrap_or_else(|e| {
             Self::Encoder::encode(&Self::from_server_fn_error(
@@ -581,7 +581,7 @@ pub trait FromServerFnError: std::fmt::Debug + Sized + 'static {
         })
     }
 
-    /// Deserializes the custom error type from a [`&str`].
+    /// Deserializes the custom error type, according to the encoding given by `Self::Encoding`.
     fn de(data: Bytes) -> Self {
         Self::Encoder::decode(data).unwrap_or_else(|e| {
             ServerFnErrorErr::Deserialization(e.to_string()).into_app_error()

server_fn/src/lib.rs

@@ -307,16 +307,18 @@ pub trait ServerFn: Send + Sized {
                     .await
                     .map(|res| (res, None))
                     .unwrap_or_else(|e| {
-                        (
+                        let mut response =
                             <<Self as ServerFn>::Server as crate::Server<
                                 Self::Error,
                                 Self::InputStreamError,
                                 Self::OutputStreamError,
                             >>::Response::error_response(
                                 Self::PATH, e.ser()
-                            ),
-                            Some(e),
-                        )
+                            );
+                        let content_type =
+                    <Self::Error as FromServerFnError>::Encoder::CONTENT_TYPE;
+                        response.content_type(content_type);
+                        (response, Some(e))
                     });
 
             // if it accepts HTML, we'll redirect to the Referer

server_fn/src/middleware/mod.rs

@@ -72,6 +72,10 @@ mod axum {
             let inner = self.call(req);
             Box::pin(async move {
                 inner.await.unwrap_or_else(|e| {
+                    // TODO: This does not set the Content-Type on the response. Doing so will
+                    //  require a breaking change in order to get the correct encoding from the
+                    //  error's `FromServerFnError::Encoder::CONTENT_TYPE` impl.
+                    //  Note: This only applies to middleware errors.
                     let err =
                         ser(ServerFnErrorErr::MiddlewareError(e.to_string()));
                     Response::<Body>::error_response(&path, err)
@@ -149,6 +153,10 @@ mod actix {
             let inner = self.call(req);
             Box::pin(async move {
                 inner.await.unwrap_or_else(|e| {
+                    // TODO: This does not set the Content-Type on the response. Doing so will
+                    //  require a breaking change in order to get the correct encoding from the
+                    //  error's `FromServerFnError::Encoder::CONTENT_TYPE` impl.
+                    //  Note: This only applies to middleware errors.
                     let err =
                         ser(ServerFnErrorErr::MiddlewareError(e.to_string()));
                     ActixResponse::error_response(&path, err).take()

server_fn/src/response/actix.rs

@@ -5,7 +5,7 @@ use crate::error::{
 use actix_web::{
     http::{
         header,
-        header::{HeaderValue, LOCATION},
+        header::{HeaderValue, CONTENT_TYPE, LOCATION},
         StatusCode,
     },
     HttpResponse,
@@ -80,6 +80,12 @@ impl Res for ActixResponse {
         ))
     }
 
+    fn content_type(&mut self, content_type: &str) {
+        if let Ok(content_type) = HeaderValue::from_str(content_type) {
+            self.0.headers_mut().insert(CONTENT_TYPE, content_type);
+        }
+    }
+
     fn redirect(&mut self, path: &str) {
         if let Ok(path) = HeaderValue::from_str(path) {
             *self.0.status_mut() = StatusCode::FOUND;

server_fn/src/response/generic.rs

@@ -100,6 +100,13 @@ impl Res for Response<Body> {
             .unwrap()
     }
 
+    fn content_type(&mut self, content_type: &str) {
+        if let Ok(content_type) = HeaderValue::from_str(content_type) {
+            self.headers_mut()
+                .insert(header::CONTENT_TYPE, content_type);
+        }
+    }
+
     fn redirect(&mut self, path: &str) {
         if let Ok(path) = HeaderValue::from_str(path) {
             self.headers_mut().insert(header::LOCATION, path);

server_fn/src/response/http.rs

@@ -60,6 +60,13 @@ impl Res for Response<Body> {
             .unwrap()
     }
 
+    fn content_type(&mut self, content_type: &str) {
+        if let Ok(content_type) = HeaderValue::from_str(content_type) {
+            self.headers_mut()
+                .insert(header::CONTENT_TYPE, content_type);
+        }
+    }
+
     fn redirect(&mut self, path: &str) {
         if let Ok(path) = HeaderValue::from_str(path) {
             self.headers_mut().insert(header::LOCATION, path);

server_fn/src/response/mod.rs

@@ -37,9 +37,14 @@ where
 
 /// Represents the response as created by the server;
 pub trait Res {
-    /// Converts an error into a response, with a `500` status code and the error text as its body.
+    /// Converts an error into a response, with a `500` status code and the error as its body.
     fn error_response(path: &str, err: Bytes) -> Self;
-
+    /// Set the `Content-Type` header for the response.
+    fn content_type(&mut self, #[allow(unused_variables)] content_type: &str) {
+        // TODO 0.9: remove this method and default implementation. It is only included here
+        //  to allow setting the `Content-Type` header for error responses without requiring a
+        //  semver-incompatible change.
+    }
     /// Redirect the response by setting a 302 code and Location header.
     fn redirect(&mut self, path: &str);
 }
@@ -103,6 +108,10 @@ impl Res for BrowserMockRes {
         unreachable!()
     }
 
+    fn content_type(&mut self, _content_type: &str) {
+        unreachable!()
+    }
+
     fn redirect(&mut self, _path: &str) {
         unreachable!()
     }

server_fn_macro/Cargo.toml

@@ -5,7 +5,7 @@ license = "MIT"
 repository = "https://github.com/leptos-rs/leptos"
 description = "RPC for any web framework."
 readme = "../README.md"
-version = "0.8.6"
+version = "0.8.7"
 edition.workspace = true
 
 [dependencies]

server_fn_macro/src/lib.rs

@@ -1556,7 +1556,7 @@ impl Parse for ServerFnBody {
 
 impl ServerFnBody {
     fn to_dummy_ident(&self) -> Ident {
-        Ident::new(&format!("__{}", self.ident), self.ident.span())
+        Ident::new(&format!("__server_{}", self.ident), self.ident.span())
     }
 
     fn to_dummy_output(&self) -> TokenStream2 {

tachys/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tachys"
-version = "0.2.6"
+version = "0.2.7"
 authors = ["Greg Johnston"]
 license = "MIT"
 readme = "../README.md"

tachys/src/html/attribute/any_attribute.rs

@@ -1,6 +1,10 @@
 use super::{Attribute, NextAttribute};
-use crate::erased::{Erased, ErasedLocal};
-use std::{any::TypeId, fmt::Debug};
+use crate::{
+    erased::{Erased, ErasedLocal},
+    html::attribute::NamedAttributeKey,
+    renderer::{dom::Element, Rndr},
+};
+use std::{any::TypeId, fmt::Debug, mem};
 #[cfg(feature = "ssr")]
 use std::{future::Future, pin::Pin};
 
@@ -25,6 +29,7 @@ pub struct AnyAttribute {
     resolve: fn(Erased) -> Pin<Box<dyn Future<Output = AnyAttribute> + Send>>,
     #[cfg(feature = "ssr")]
     dry_resolve: fn(&mut Erased),
+    keys: fn(&Erased) -> Vec<NamedAttributeKey>,
 }
 
 impl Clone for AnyAttribute {
@@ -44,6 +49,7 @@ pub struct AnyAttributeState {
     type_id: TypeId,
     state: ErasedLocal,
     el: crate::renderer::types::Element,
+    keys: Vec<NamedAttributeKey>,
 }
 
 /// Converts an [`Attribute`] into [`AnyAttribute`].
@@ -84,6 +90,7 @@ where
         ) -> AnyAttributeState {
             AnyAttributeState {
                 type_id: TypeId::of::<T>(),
+                keys: value.get_ref::<T>().keys(),
                 state: ErasedLocal::new(value.into_inner::<T>().build(&el)),
                 el,
             }
@@ -96,6 +103,7 @@ where
         ) -> AnyAttributeState {
             AnyAttributeState {
                 type_id: TypeId::of::<T>(),
+                keys: value.get_ref::<T>().keys(),
                 state: ErasedLocal::new(
                     value.into_inner::<T>().hydrate::<true>(&el),
                 ),
@@ -110,6 +118,7 @@ where
         ) -> AnyAttributeState {
             AnyAttributeState {
                 type_id: TypeId::of::<T>(),
+                keys: value.get_ref::<T>().keys(),
                 state: ErasedLocal::new(
                     value.into_inner::<T>().hydrate::<true>(&el),
                 ),
@@ -140,6 +149,12 @@ where
             async move {value.into_inner::<T>().resolve().await.into_any_attr()}.boxed()
         }
 
+        fn keys<T: Attribute + 'static>(
+            value: &Erased,
+        ) -> Vec<NamedAttributeKey> {
+            value.get_ref::<T>().keys()
+        }
+
         let value = self.into_cloneable_owned();
         AnyAttribute {
             type_id: TypeId::of::<T::CloneableOwned>(),
@@ -158,6 +173,7 @@ where
             resolve: resolve::<T::CloneableOwned>,
             #[cfg(feature = "ssr")]
             dry_resolve: dry_resolve::<T::CloneableOwned>,
+            keys: keys::<T::CloneableOwned>,
         }
     }
 }
@@ -268,6 +284,10 @@ impl Attribute for AnyAttribute {
              enabled."
         );
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        (self.keys)(&self.value)
+    }
 }
 
 impl NextAttribute for Vec<AnyAttribute> {
@@ -286,7 +306,7 @@ impl Attribute for Vec<AnyAttribute> {
     const MIN_LENGTH: usize = 0;
 
     type AsyncOutput = Vec<AnyAttribute>;
-    type State = Vec<AnyAttributeState>;
+    type State = (Element, Vec<AnyAttributeState>);
     type Cloneable = Vec<AnyAttribute>;
     type CloneableOwned = Vec<AnyAttribute>;
 
@@ -321,13 +341,19 @@ impl Attribute for Vec<AnyAttribute> {
     ) -> Self::State {
         #[cfg(feature = "hydrate")]
         if FROM_SERVER {
-            self.into_iter()
-                .map(|attr| attr.hydrate::<true>(el))
-                .collect()
+            (
+                el.clone(),
+                self.into_iter()
+                    .map(|attr| attr.hydrate::<true>(el))
+                    .collect(),
+            )
         } else {
-            self.into_iter()
-                .map(|attr| attr.hydrate::<false>(el))
-                .collect()
+            (
+                el.clone(),
+                self.into_iter()
+                    .map(|attr| attr.hydrate::<false>(el))
+                    .collect(),
+            )
         }
         #[cfg(not(feature = "hydrate"))]
         {
@@ -340,13 +366,34 @@ impl Attribute for Vec<AnyAttribute> {
     }
 
     fn build(self, el: &crate::renderer::types::Element) -> Self::State {
-        self.into_iter().map(|attr| attr.build(el)).collect()
+        (
+            el.clone(),
+            self.into_iter().map(|attr| attr.build(el)).collect(),
+        )
     }
 
     fn rebuild(self, state: &mut Self::State) {
-        for (attr, state) in self.into_iter().zip(state.iter_mut()) {
-            attr.rebuild(state)
+        let (el, state) = state;
+        for old in mem::take(state) {
+            for key in old.keys {
+                match key {
+                    NamedAttributeKey::InnerHtml => {
+                        Rndr::set_inner_html(&old.el, "");
+                    }
+                    NamedAttributeKey::Property(prop_name) => {
+                        Rndr::set_property(
+                            &old.el,
+                            &prop_name,
+                            &wasm_bindgen::JsValue::UNDEFINED,
+                        );
+                    }
+                    NamedAttributeKey::Attribute(key) => {
+                        Rndr::remove_attribute(&old.el, &key);
+                    }
+                }
+            }
         }
+        *state = self.into_iter().map(|s| s.build(el)).collect();
     }
 
     fn into_cloneable(self) -> Self::Cloneable {
@@ -385,4 +432,8 @@ impl Attribute for Vec<AnyAttribute> {
              enabled."
         );
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        self.iter().flat_map(|s| s.keys()).collect()
+    }
 }

tachys/src/html/attribute/custom.rs

@@ -4,7 +4,7 @@ use super::{
 use crate::{
     html::attribute::{
         maybe_next_attr_erasure_macros::next_attr_combine, Attribute,
-        AttributeValue,
+        AttributeValue, NamedAttributeKey,
     },
     view::{add_attr::AddAnyAttr, Position, ToTemplate},
 };
@@ -112,6 +112,12 @@ where
             value: self.value.resolve().await,
         }
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Attribute(
+            self.key.as_ref().to_string().into(),
+        )]
+    }
 }
 
 impl<K, V> NextAttribute for CustomAttr<K, V>

tachys/src/html/attribute/key.rs

@@ -195,6 +195,10 @@ attributes! {
     cols "cols",
     /// The `colspan` attribute defines the number of columns a cell should span.
     colspan "colspan",
+    /// The `command` attribute defines the command to be invoked when user clicks the `<button>` element which has `commandfor` attribute specified.
+    command "command",
+    /// The `commandfor` attribute defines the id of the element which button is controlling. It is generic version of `popovertarget`.
+    commandfor "commandfor",
     /// The `content` attribute gives the value associated with the http-equiv or name attribute.
     content "content",
     /// The `contenteditable` attribute indicates whether the element's content is editable.

tachys/src/html/attribute/mod.rs

@@ -15,7 +15,7 @@ pub use key::*;
 use maybe_next_attr_erasure_macros::{
     next_attr_combine, next_attr_output_type,
 };
-use std::{fmt::Debug, future::Future};
+use std::{borrow::Cow, fmt::Debug, future::Future};
 pub use value::*;
 
 /// Defines an attribute: anything that can modify an element.
@@ -75,6 +75,25 @@ pub trait Attribute: NextAttribute + Send {
 
     /// “Resolves” this into a type that is not waiting for any asynchronous data.
     fn resolve(self) -> impl Future<Output = Self::AsyncOutput> + Send;
+
+    /// Returns a set of attribute keys, associated with this attribute, if any.
+    ///
+    /// This is only used to manage the removal of type-erased attributes, when needed.
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        // TODO: remove default implementation in 0.9, or fix this whole approach
+        // by making it easier to remove attributes
+        vec![]
+    }
+}
+
+/// An attribute key can be used to remove an attribute from an element.
+pub enum NamedAttributeKey {
+    /// An ordinary attribute.
+    Attribute(Cow<'static, str>),
+    /// A DOM property.
+    Property(Cow<'static, str>),
+    /// The `inner_html` pseudo-attribute.
+    InnerHtml,
 }
 
 /// Adds another attribute to this one, returning a new attribute.
@@ -133,6 +152,10 @@ impl Attribute for () {
     fn dry_resolve(&mut self) {}
 
     async fn resolve(self) -> Self::AsyncOutput {}
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![]
+    }
 }
 
 impl NextAttribute for () {
@@ -249,6 +272,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         Attr(self.0, self.1.resolve().await)
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Attribute(K::KEY.into())]
+    }
 }
 
 impl<K, V> NextAttribute for Attr<K, V>
@@ -353,6 +380,14 @@ macro_rules! impl_attr_for_tuples {
                     $($ty.resolve()),*
                 )
             }
+
+            fn keys(&self) -> Vec<NamedAttributeKey> {
+                #[allow(non_snake_case)]
+                let ($first, $($ty,)*) = &self;
+                let mut buf = $first.keys();
+                $(buf.extend($ty.keys());)*
+                buf
+            }
         }
 
         impl<$first, $($ty),*> NextAttribute for ($first, $($ty,)*)
@@ -462,6 +497,14 @@ macro_rules! impl_attr_for_tuples_truncate_additional {
                     $($ty.resolve()),*
                 )
             }
+
+            fn keys(&self) -> Vec<NamedAttributeKey> {
+                #[allow(non_snake_case)]
+                let ($first, $($ty,)*) = &self;
+                let mut buf = $first.keys();
+                $(buf.extend($ty.keys());)*
+                buf
+            }
         }
 
         impl<$first, $($ty),*> NextAttribute for ($first, $($ty,)*)
@@ -538,6 +581,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         (self.0.resolve().await,)
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        self.0.keys()
+    }
 }
 
 impl<A> NextAttribute for (A,)

tachys/src/html/class.rs

@@ -1,6 +1,6 @@
 use super::attribute::{
     maybe_next_attr_erasure_macros::next_attr_output_type, Attribute,
-    NextAttribute,
+    NamedAttributeKey, NextAttribute,
 };
 use crate::{
     html::attribute::maybe_next_attr_erasure_macros::next_attr_combine,
@@ -97,6 +97,10 @@ where
             class: self.class.resolve().await,
         }
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Attribute("class".into())]
+    }
 }
 
 impl<C> NextAttribute for Class<C>

tachys/src/html/directive.rs

@@ -3,7 +3,9 @@ use super::attribute::{
     NextAttribute,
 };
 use crate::{
-    html::attribute::maybe_next_attr_erasure_macros::next_attr_combine,
+    html::attribute::{
+        maybe_next_attr_erasure_macros::next_attr_combine, NamedAttributeKey,
+    },
     prelude::AddAnyAttr,
     view::{Position, ToTemplate},
 };
@@ -160,6 +162,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![]
+    }
 }
 
 impl<T, D, P> NextAttribute for Directive<T, D, P>

tachys/src/html/element/elements.rs

@@ -249,7 +249,7 @@ html_elements! {
     /// The `<body>` HTML element represents the content of an HTML document. There can be only one `<body>` element in a document.
     body HtmlBodyElement [] true,
     /// The `<button>` HTML element represents a clickable button, used to submit forms or anywhere in a document for accessible, standard button functionality.
-    button HtmlButtonElement [disabled, form, formaction, formenctype, formmethod, formnovalidate, formtarget, name, r#type, value, popovertarget, popovertargetaction] true,
+    button HtmlButtonElement [command, commandfor, disabled, form, formaction, formenctype, formmethod, formnovalidate, formtarget, name, r#type, value, popovertarget, popovertargetaction] true,
     /// Use the HTML `<canvas>` element with either the canvas scripting API or the WebGL API to draw graphics and animations.
     canvas HtmlCanvasElement [height, width] true,
     /// The `<caption>` HTML element specifies the caption (or title) of a table.
@@ -269,7 +269,7 @@ html_elements! {
     /// The `<del>` HTML element represents a range of text that has been deleted from a document. This can be used when rendering "track changes" or source code diff information, for example. The ins element can be used for the opposite purpose: to indicate text that has been added to the document.
     del HtmlModElement [cite, datetime] true,
     /// The `<details>` HTML element creates a disclosure widget in which information is visible only when the widget is toggled into an "open" state. A summary or label must be provided using the summary element.
-    details HtmlDetailsElement [open] true,
+    details HtmlDetailsElement [name, open] true,
     /// The `<dfn>` HTML element is used to indicate the term being defined within the context of a definition phrase or sentence. The p element, the dt/dd pairing, or the section element which is the nearest ancestor of the `<dfn>` is considered to be the definition of the term.
     dfn HtmlElement [] true,
     /// The `<dialog>` HTML element represents a dialog box or other interactive component, such as a dismissible alert, inspector, or subwindow.

tachys/src/html/element/inner_html.rs

@@ -4,7 +4,7 @@ use crate::{
         maybe_next_attr_erasure_macros::{
             next_attr_combine, next_attr_output_type,
         },
-        Attribute, NextAttribute,
+        Attribute, NamedAttributeKey, NextAttribute,
     },
     renderer::Rndr,
     view::add_attr::AddAnyAttr,
@@ -105,6 +105,10 @@ where
             value: self.value.resolve().await,
         }
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::InnerHtml]
+    }
 }
 
 impl<T> NextAttribute for InnerHtml<T>

tachys/src/html/element/mod.rs

@@ -329,6 +329,8 @@ where
     fn build(self) -> Self::State {
         let el = Rndr::create_element(self.tag.tag(), E::NAMESPACE);
 
+        let attrs = self.attributes.build(&el);
+
         let children = if E::SELF_CLOSING {
             None
         } else {
@@ -337,8 +339,6 @@ where
             Some(children)
         };
 
-        let attrs = self.attributes.build(&el);
-
         ElementState {
             el,
             attrs,

tachys/src/html/event.rs

@@ -1,6 +1,7 @@
 use crate::{
     html::attribute::{
         maybe_next_attr_erasure_macros::next_attr_combine, Attribute,
+        NamedAttributeKey,
     },
     renderer::{CastFrom, RemoveEventHandler, Rndr},
     view::{Position, ToTemplate},
@@ -110,6 +111,8 @@ where
 {
     On {
         event,
+        #[cfg(feature = "reactive_graph")]
+        owner: reactive_graph::owner::Owner::current().unwrap_or_default(),
         cb: Some(SendWrapper::new(cb)),
     }
 }
@@ -135,6 +138,8 @@ where
 /// An [`Attribute`] that adds an event listener to an element.
 pub struct On<E, F> {
     event: E,
+    #[cfg(feature = "reactive_graph")]
+    owner: reactive_graph::owner::Owner,
     cb: Option<SendWrapper<F>>,
 }
 
@@ -146,6 +151,8 @@ where
     fn clone(&self) -> Self {
         Self {
             event: self.event.clone(),
+            #[cfg(feature = "reactive_graph")]
+            owner: self.owner.clone(),
             cb: self.cb.clone(),
         }
     }
@@ -193,6 +200,10 @@ where
             let _tracing_guard = span.enter();
 
             let ev = E::EventType::from(ev);
+
+            #[cfg(feature = "reactive_graph")]
+            self.owner.with(|| cb.invoke(ev));
+            #[cfg(not(feature = "reactive_graph"))]
             cb.invoke(ev);
         }) as Box<dyn FnMut(crate::renderer::types::Event)>;
 
@@ -232,6 +243,10 @@ where
             let _tracing_guard = span.enter();
 
             let ev = E::EventType::from(ev);
+
+            #[cfg(feature = "reactive_graph")]
+            self.owner.with(|| cb.invoke(ev));
+            #[cfg(not(feature = "reactive_graph"))]
             cb.invoke(ev);
         }) as Box<dyn FnMut(crate::renderer::types::Event)>;
 
@@ -320,6 +335,8 @@ where
     fn into_cloneable(self) -> Self::Cloneable {
         On {
             cb: self.cb.map(|cb| SendWrapper::new(cb.take().into_shared())),
+            #[cfg(feature = "reactive_graph")]
+            owner: self.owner,
             event: self.event,
         }
     }
@@ -327,6 +344,8 @@ where
     fn into_cloneable_owned(self) -> Self::CloneableOwned {
         On {
             cb: self.cb.map(|cb| SendWrapper::new(cb.take().into_shared())),
+            #[cfg(feature = "reactive_graph")]
+            owner: self.owner,
             event: self.event,
         }
     }
@@ -342,6 +361,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![]
+    }
 }
 
 impl<E, F> NextAttribute for On<E, F>

tachys/src/html/node_ref.rs

@@ -7,7 +7,10 @@ use super::{
 };
 use crate::{
     html::{
-        attribute::maybe_next_attr_erasure_macros::next_attr_combine,
+        attribute::{
+            maybe_next_attr_erasure_macros::next_attr_combine,
+            NamedAttributeKey,
+        },
         element::HtmlElement,
     },
     prelude::Render,
@@ -112,6 +115,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![]
+    }
 }
 
 impl<E, C> NextAttribute for NodeRefAttr<E, C>

tachys/src/html/property.rs

@@ -3,7 +3,9 @@ use super::attribute::{
     NextAttribute,
 };
 use crate::{
-    html::attribute::maybe_next_attr_erasure_macros::next_attr_combine,
+    html::attribute::{
+        maybe_next_attr_erasure_macros::next_attr_combine, NamedAttributeKey,
+    },
     renderer::Rndr,
     view::{Position, ToTemplate},
 };
@@ -124,6 +126,12 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Property(
+            self.key.as_ref().to_string().into(),
+        )]
+    }
 }
 
 impl<K, P> NextAttribute for Property<K, P>
@@ -202,7 +210,7 @@ macro_rules! prop_type {
                 key: &str,
             ) -> Self::State {
                 let value = self.into();
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 (el.clone(), value)
             }
 
@@ -212,14 +220,14 @@ macro_rules! prop_type {
                 key: &str,
             ) -> Self::State {
                 let value = self.into();
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 (el.clone(), value)
             }
 
             fn rebuild(self, state: &mut Self::State, key: &str) {
                 let (el, prev) = state;
                 let value = self.into();
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 *prev = value;
             }
 
@@ -245,7 +253,7 @@ macro_rules! prop_type {
                 let was_some = self.is_some();
                 let value = self.into();
                 if was_some {
-                    Rndr::set_property(el, key, &value);
+                    Rndr::set_property_or_value(el, key, &value);
                 }
                 (el.clone(), value)
             }
@@ -258,7 +266,7 @@ macro_rules! prop_type {
                 let was_some = self.is_some();
                 let value = self.into();
                 if was_some {
-                    Rndr::set_property(el, key, &value);
+                    Rndr::set_property_or_value(el, key, &value);
                 }
                 (el.clone(), value)
             }
@@ -266,7 +274,7 @@ macro_rules! prop_type {
             fn rebuild(self, state: &mut Self::State, key: &str) {
                 let (el, prev) = state;
                 let value = self.into();
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 *prev = value;
             }
 
@@ -294,7 +302,7 @@ macro_rules! prop_type_str {
                 key: &str,
             ) -> Self::State {
                 let value = JsValue::from(&*self);
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 (el.clone(), value)
             }
 
@@ -304,14 +312,14 @@ macro_rules! prop_type_str {
                 key: &str,
             ) -> Self::State {
                 let value = JsValue::from(&*self);
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 (el.clone(), value)
             }
 
             fn rebuild(self, state: &mut Self::State, key: &str) {
                 let (el, prev) = state;
                 let value = JsValue::from(&*self);
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 *prev = value;
             }
 
@@ -339,7 +347,7 @@ macro_rules! prop_type_str {
                 let was_some = self.is_some();
                 let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
                 if was_some {
-                    Rndr::set_property(el, key, &value);
+                    Rndr::set_property_or_value(el, key, &value);
                 }
                 (el.clone(), value)
             }
@@ -352,7 +360,7 @@ macro_rules! prop_type_str {
                 let was_some = self.is_some();
                 let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
                 if was_some {
-                    Rndr::set_property(el, key, &value);
+                    Rndr::set_property_or_value(el, key, &value);
                 }
                 (el.clone(), value)
             }
@@ -360,7 +368,7 @@ macro_rules! prop_type_str {
             fn rebuild(self, state: &mut Self::State, key: &str) {
                 let (el, prev) = state;
                 let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
-                Rndr::set_property(el, key, &value);
+                Rndr::set_property_or_value(el, key, &value);
                 *prev = value;
             }
 
@@ -392,7 +400,7 @@ impl IntoProperty for Arc<str> {
         key: &str,
     ) -> Self::State {
         let value = JsValue::from_str(self.as_ref());
-        Rndr::set_property(el, key, &value);
+        Rndr::set_property_or_value(el, key, &value);
         (el.clone(), value)
     }
 
@@ -402,14 +410,14 @@ impl IntoProperty for Arc<str> {
         key: &str,
     ) -> Self::State {
         let value = JsValue::from_str(self.as_ref());
-        Rndr::set_property(el, key, &value);
+        Rndr::set_property_or_value(el, key, &value);
         (el.clone(), value)
     }
 
     fn rebuild(self, state: &mut Self::State, key: &str) {
         let (el, prev) = state;
         let value = JsValue::from_str(self.as_ref());
-        Rndr::set_property(el, key, &value);
+        Rndr::set_property_or_value(el, key, &value);
         *prev = value;
     }
 
@@ -435,7 +443,7 @@ impl IntoProperty for Option<Arc<str>> {
         let was_some = self.is_some();
         let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
         if was_some {
-            Rndr::set_property(el, key, &value);
+            Rndr::set_property_or_value(el, key, &value);
         }
         (el.clone(), value)
     }
@@ -448,7 +456,7 @@ impl IntoProperty for Option<Arc<str>> {
         let was_some = self.is_some();
         let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
         if was_some {
-            Rndr::set_property(el, key, &value);
+            Rndr::set_property_or_value(el, key, &value);
         }
         (el.clone(), value)
     }
@@ -456,7 +464,7 @@ impl IntoProperty for Option<Arc<str>> {
     fn rebuild(self, state: &mut Self::State, key: &str) {
         let (el, prev) = state;
         let value = JsValue::from(self.map(|n| JsValue::from_str(&n)));
-        Rndr::set_property(el, key, &value);
+        Rndr::set_property_or_value(el, key, &value);
         *prev = value;
     }
 

tachys/src/html/style.rs

@@ -5,7 +5,9 @@ use super::attribute::{
 #[cfg(all(feature = "nightly", rustc_nightly))]
 use crate::view::static_types::Static;
 use crate::{
-    html::attribute::maybe_next_attr_erasure_macros::next_attr_combine,
+    html::attribute::{
+        maybe_next_attr_erasure_macros::next_attr_combine, NamedAttributeKey,
+    },
     renderer::{dom::CssStyleDeclaration, Rndr},
     view::{Position, ToTemplate},
 };
@@ -100,6 +102,10 @@ where
             style: self.style.resolve().await,
         }
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Attribute("style".into())]
+    }
 }
 
 impl<S> NextAttribute for Style<S>

tachys/src/lib.rs

@@ -10,6 +10,9 @@
     all(feature = "nightly", rustc_nightly),
     feature(unsized_const_params)
 )]
+// support for const generic &'static str has now moved back and forth between
+// these two features a couple times; we'll just enable both
+#![cfg_attr(all(feature = "nightly", rustc_nightly), feature(adt_const_params))]
 #![deny(missing_docs)]
 
 /// Commonly-used traits.

tachys/src/oco.rs

@@ -2,6 +2,7 @@ use crate::{
     html::{
         attribute::{any_attribute::AnyAttribute, AttributeValue},
         class::IntoClass,
+        property::IntoProperty,
         style::IntoStyle,
     },
     hydration::Cursor,
@@ -11,6 +12,7 @@ use crate::{
     view::{strings::StrState, Position, PositionState, ToTemplate},
 };
 use oco_ref::Oco;
+use wasm_bindgen::JsValue;
 
 /// Retained view state for [`Oco`].
 pub struct OcoStrState {
@@ -248,6 +250,47 @@ impl IntoClass for Oco<'static, str> {
     }
 }
 
+impl IntoProperty for Oco<'static, str> {
+    type State = (crate::renderer::types::Element, JsValue);
+    type Cloneable = Self;
+    type CloneableOwned = Self;
+
+    fn hydrate<const FROM_SERVER: bool>(
+        self,
+        el: &crate::renderer::types::Element,
+        key: &str,
+    ) -> Self::State {
+        let value = JsValue::from_str(self.as_ref());
+        Rndr::set_property_or_value(el, key, &value);
+        (el.clone(), value)
+    }
+
+    fn build(
+        self,
+        el: &crate::renderer::types::Element,
+        key: &str,
+    ) -> Self::State {
+        let value = JsValue::from_str(self.as_ref());
+        Rndr::set_property_or_value(el, key, &value);
+        (el.clone(), value)
+    }
+
+    fn rebuild(self, state: &mut Self::State, key: &str) {
+        let (el, prev) = state;
+        let value = JsValue::from_str(self.as_ref());
+        Rndr::set_property_or_value(el, key, &value);
+        *prev = value;
+    }
+
+    fn into_cloneable(self) -> Self::Cloneable {
+        self
+    }
+
+    fn into_cloneable_owned(self) -> Self::CloneableOwned {
+        self
+    }
+}
+
 impl IntoStyle for Oco<'static, str> {
     type AsyncOutput = Self;
     type State = (crate::renderer::types::Element, Self);

tachys/src/reactive_graph/bind.rs

@@ -5,7 +5,8 @@ use crate::{
             maybe_next_attr_erasure_macros::{
                 next_attr_combine, next_attr_output_type,
             },
-            Attribute, AttributeKey, AttributeValue, NextAttribute,
+            Attribute, AttributeKey, AttributeValue, NamedAttributeKey,
+            NextAttribute,
         },
         event::{change, input, on},
         property::{prop, IntoProperty},
@@ -275,6 +276,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![]
+    }
 }
 
 impl<Key, T, R, W> NextAttribute for Bind<Key, T, R, W>

tachys/src/reactive_graph/owned.rs

@@ -153,6 +153,20 @@ where
         OwnedViewState::new(state, self.owner)
     }
 
+    async fn hydrate_async(
+        self,
+        cursor: &Cursor,
+        position: &PositionState,
+    ) -> Self::State {
+        let state = self
+            .owner
+            .with(|| {
+                ScopedFuture::new(self.view.hydrate_async(cursor, position))
+            })
+            .await;
+        OwnedViewState::new(state, self.owner)
+    }
+
     async fn resolve(self) -> Self::AsyncOutput {
         let OwnedView { owner, view } = self;
         let view = owner

tachys/src/renderer/dom.rs

@@ -36,6 +36,46 @@ pub type ClassList = web_sys::DomTokenList;
 pub type CssStyleDeclaration = web_sys::CssStyleDeclaration;
 pub type TemplateElement = web_sys::HtmlTemplateElement;
 
+/// A microtask is a short function which will run after the current task has
+/// completed its work and when there is no other code waiting to be run before
+/// control of the execution context is returned to the browser's event loop.
+///
+/// Microtasks are especially useful for libraries and frameworks that need
+/// to perform final cleanup or other just-before-rendering tasks.
+///
+/// [MDN queueMicrotask](https://developer.mozilla.org/en-US/docs/Web/API/queueMicrotask)
+pub fn queue_microtask(task: impl FnOnce() + 'static) {
+    use js_sys::{Function, Reflect};
+
+    let task = Closure::once_into_js(task);
+    let window = window();
+    let queue_microtask =
+        Reflect::get(&window, &JsValue::from_str("queueMicrotask"))
+            .expect("queueMicrotask not available");
+    let queue_microtask = queue_microtask.unchecked_into::<Function>();
+    _ = queue_microtask.call1(&JsValue::UNDEFINED, &task);
+}
+
+fn queue(fun: Box<dyn FnOnce()>) {
+    use std::cell::{Cell, RefCell};
+
+    thread_local! {
+        static PENDING: Cell<bool> = const { Cell::new(false) };
+        static QUEUE: RefCell<Vec<Box<dyn FnOnce()>>> = RefCell::new(Vec::new());
+    }
+
+    QUEUE.with_borrow_mut(|q| q.push(fun));
+    if !PENDING.replace(true) {
+        queue_microtask(|| {
+            let tasks = QUEUE.take();
+            for task in tasks {
+                task();
+            }
+            PENDING.set(false);
+        })
+    }
+}
+
 impl Dom {
     pub fn intern(text: &str) -> &str {
         intern(text)
@@ -211,6 +251,20 @@ impl Dom {
         }
     }
 
+    pub fn set_property_or_value(el: &Element, key: &str, value: &JsValue) {
+        if key == "value" {
+            queue(Box::new({
+                let el = el.clone();
+                let value = value.clone();
+                move || {
+                    Self::set_property(&el, "value", &value);
+                }
+            }))
+        } else {
+            Self::set_property(el, key, value);
+        }
+    }
+
     pub fn set_property(el: &Element, key: &str, value: &JsValue) {
         or_debug!(
             js_sys::Reflect::set(

tachys/src/view/any_view.rs

@@ -699,7 +699,15 @@ impl Render for AnyViewWithAttrs {
 
     fn rebuild(self, state: &mut Self::State) {
         self.view.rebuild(&mut state.view);
-        self.attrs.rebuild(&mut state.attrs);
+
+        let elements = state.elements();
+        // FIXME this seems wrong but I think the previous version was also broken!
+        if let Some(element) = elements.first() {
+            self.attrs.rebuild(&mut (
+                element.clone(),
+                std::mem::take(&mut state.attrs),
+            ));
+        }
     }
 }
 
@@ -820,7 +828,7 @@ impl AddAnyAttr for AnyViewWithAttrs {
     }
 }
 
-/// wip
+/// State for any view with attributes spread onto it.
 pub struct AnyViewWithAttrsState {
     view: AnyViewState,
     attrs: Vec<AnyAttributeState>,

tachys/src/view/either.rs

@@ -3,7 +3,10 @@ use super::{
     Render, RenderHtml,
 };
 use crate::{
-    html::attribute::{any_attribute::AnyAttribute, Attribute, NextAttribute},
+    html::attribute::{
+        any_attribute::AnyAttribute, Attribute, NamedAttributeKey,
+        NextAttribute,
+    },
     hydration::Cursor,
     ssr::StreamBuilder,
 };
@@ -264,6 +267,13 @@ where
             Either::Right(right) => Either::Right(right.resolve().await),
         }
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        match self {
+            Either::Left(left) => left.keys(),
+            Either::Right(right) => right.keys(),
+        }
+    }
 }
 
 impl<A, B> RenderHtml for Either<A, B>

tachys/src/view/static_types.rs

@@ -8,7 +8,8 @@ use crate::{
         maybe_next_attr_erasure_macros::{
             next_attr_combine, next_attr_output_type,
         },
-        Attribute, AttributeKey, AttributeValue, NextAttribute,
+        Attribute, AttributeKey, AttributeValue, NamedAttributeKey,
+        NextAttribute,
     },
     hydration::Cursor,
     renderer::{CastFrom, Rndr},
@@ -111,6 +112,10 @@ where
     async fn resolve(self) -> Self::AsyncOutput {
         self
     }
+
+    fn keys(&self) -> Vec<NamedAttributeKey> {
+        vec![NamedAttributeKey::Attribute(K::KEY.into())]
+    }
 }
 
 impl<K, const V: &'static str> NextAttribute for StaticAttr<K, V>

wasm_split_macros/src/lib.rs

@@ -85,6 +85,7 @@ pub fn wasm_split(args: TokenStream, input: TokenStream) -> TokenStream {
         import_sig.output = async_output;
     }
 
+    let wrapper_pub = item_fn.vis;
     let mut wrapper_sig = item_fn.sig;
     wrapper_sig.asyncness = Some(Default::default());
     let mut args = Vec::new();
@@ -147,7 +148,8 @@ pub fn wasm_split(args: TokenStream, input: TokenStream) -> TokenStream {
         }
 
         #[allow(non_snake_case)]
-        #wrapper_sig {
+        #(#attrs)*
+        #wrapper_pub #wrapper_sig {
             #(#attrs)*
             #[allow(improper_ctypes_definitions)]
             #[allow(non_snake_case)]
@@ -162,7 +164,7 @@ pub fn wasm_split(args: TokenStream, input: TokenStream) -> TokenStream {
 
         #[doc(hidden)]
         #[allow(non_snake_case)]
-        pub async fn #preload_name() {
+        #wrapper_pub async fn #preload_name() {
             ::leptos::wasm_split_helpers::ensure_loaded(&#split_loader_ident).await.unwrap();
         }
     }

~/.build/rust-analyzer/metadata/sysroot/Cargo.lock

@@ -1,503 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 4
-
-[[package]]
-name = "addr2line"
-version = "0.24.2"
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-checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
-dependencies = [
- "compiler_builtins",
- "gimli",
- "rustc-std-workspace-alloc",
- "rustc-std-workspace-core",
-]
-
-[[package]]
-name = "adler2"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
-dependencies = [
- "compiler_builtins",
- "rustc-std-workspace-core",
-]
-
-[[package]]
-name = "alloc"
-version = "0.0.0"
-dependencies = [
- "compiler_builtins",
- "core",
-]
-
-[[package]]
-name = "alloctests"
-version = "0.0.0"
-dependencies = [
- "rand",
- "rand_xorshift",
-]
-
-[[package]]
-name = "cc"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1aeb932158bd710538c73702db6945cb68a8fb08c519e6e12706b94263b36db8"
-dependencies = [
- "shlex",
-]
-
-[[package]]
-name = "cfg-if"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
-dependencies = [
- "compiler_builtins",
- "rustc-std-workspace-core",
-]
-
-[[package]]
-name = "compiler_builtins"
-version = "0.1.158"
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-dependencies = [
- "cc",
- "rustc-std-workspace-core",
-]
-
-[[package]]
-name = "core"
-version = "0.0.0"
-
-[[package]]
-name = "coretests"
-version = "0.0.0"
-dependencies = [
- "rand",
- "rand_xorshift",
-]
-
-[[package]]
-name = "dlmalloc"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cff88b751e7a276c4ab0e222c3f355190adc6dde9ce39c851db39da34990df7"
-dependencies = [
- "cfg-if",
- "compiler_builtins",
- "libc",
- "rustc-std-workspace-core",
- "windows-sys",
-]
-
-[[package]]
-name = "fortanix-sgx-abi"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57cafc2274c10fab234f176b25903ce17e690fca7597090d50880e047a0389c5"
-dependencies = [
- "compiler_builtins",
- "rustc-std-workspace-core",
-]
-
-[[package]]
-name = "getopts"
-version = "0.2.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14dbbfd5c71d70241ecf9e6f13737f7b5ce823821063188d7e46c41d371eebd5"
-dependencies = [
- "rustc-std-workspace-core",
- "rustc-std-workspace-std",
- "unicode-width",
-]
-
-[[package]]
-name = "gimli"
-version = "0.31.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
-dependencies = [
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