0.6.4

fix: serialization error during SSR on ServerFnError

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+# These are supported funding model platforms
+
+github: gbj

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**Leptos Dependencies**
+
+Please copy and paste the Leptos dependencies and features from your `Cargo.toml`.
+
+For example:
+```toml
+leptos = { version = "0.3", features = ["serde"] }
+leptos_axum = { version = "0.3", optional = true }
+leptos_meta = { version = "0.3"}
+leptos_router = { version = "0.3"}
+```
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,7 @@
+contact_links:
+  - name: Support or Question
+    url: https://github.com/leptos-rs/leptos/discussions/new?category=q-a
+    about: Do you need help figuring out how to do something, or want some help troubleshooting a bug? You can ask in our Discussions section.
+  - name: Discord Discussions
+    url: https://discord.gg/YdRAhS7eQB
+    about: For more informal, real-time conversation and support, you can join our Discord server.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/ci-changed-examples.yml

@@ -0,0 +1,32 @@
+name: CI Changed Examples
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  get-example-changed:
+    uses: ./.github/workflows/get-example-changed.yml
+
+  get-matrix:
+    needs: [get-example-changed]
+    uses: ./.github/workflows/get-changed-examples-matrix.yml
+    with:
+      example_changed: ${{ fromJSON(needs.get-example-changed.outputs.example_changed) }}
+
+  test:
+    name: CI
+    needs: [get-example-changed, get-matrix]
+    if: needs.get-example-changed.outputs.example_changed == 'true'
+    strategy:
+      matrix: ${{ fromJSON(needs.get-matrix.outputs.matrix) }}
+      fail-fast: false
+    uses: ./.github/workflows/run-cargo-make-task.yml
+    with:
+      directory: ${{ matrix.directory }}
+      cargo_make_task: "ci"
+      toolchain: nightly

.github/workflows/ci-examples.yml

@@ -0,0 +1,27 @@
+name: CI Examples
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  get-leptos-changed:
+    uses: ./.github/workflows/get-leptos-changed.yml
+  get-examples-matrix:
+    uses: ./.github/workflows/get-examples-matrix.yml
+  test:
+    name: CI
+    needs: [get-leptos-changed, get-examples-matrix]
+    if: needs.get-leptos-changed.outputs.leptos_changed == 'true'
+    strategy:
+      matrix: ${{ fromJSON(needs.get-examples-matrix.outputs.matrix) }}
+      fail-fast: false
+    uses: ./.github/workflows/run-cargo-make-task.yml
+    with:
+      directory: ${{ matrix.directory }}
+      cargo_make_task: "ci"
+      toolchain: nightly

.github/workflows/ci-stable-examples.yml

@@ -0,0 +1,26 @@
+name: CI Stable Examples
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  get-leptos-changed:
+    uses: ./.github/workflows/get-leptos-changed.yml
+
+  test:
+    name: CI
+    needs: [get-leptos-changed]
+    if: needs.get-leptos-changed.outputs.leptos_changed == 'true'
+    strategy:
+      matrix:
+        directory: [examples/counters_stable, examples/counter_without_macros]
+    uses: ./.github/workflows/run-cargo-make-task.yml
+    with:
+      directory: ${{ matrix.directory }}
+      cargo_make_task: "ci"
+      toolchain: stable

.github/workflows/ci.yml

@@ -0,0 +1,43 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  get-leptos-changed:
+    uses: ./.github/workflows/get-leptos-changed.yml
+
+  test:
+    name: CI
+    needs: [get-leptos-changed]
+    if: needs.get-leptos-changed.outputs.leptos_changed == 'true'
+    strategy:
+      matrix:
+        directory:
+          [
+            integrations/actix,
+            integrations/axum,
+            integrations/utils,
+            leptos,
+            leptos_config,
+            leptos_dom,
+            leptos_hot_reload,
+            leptos_macro,
+            leptos_reactive,
+            leptos_server,
+            meta,
+            router,
+            server_fn,
+            server_fn/server_fn_macro_default,
+            server_fn_macro,
+          ]
+    uses: ./.github/workflows/run-cargo-make-task.yml
+    with:
+      directory: ${{ matrix.directory }}
+      cargo_make_task: "ci"
+      toolchain: nightly

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

@@ -0,0 +1,55 @@
+name: Changed Examples Matrix Call
+
+on:
+  workflow_call:
+    inputs:
+      example_changed:
+        description: "Example Changed"
+        required: true
+        type: boolean
+    outputs:
+      matrix:
+        description: "Matrix"
+        value: ${{ jobs.get-example-changed.outputs.matrix }}
+
+jobs:
+  get-example-changed:
+    name: Get Changed Example Matrix
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get example project directories that changed
+        id: changed-dirs
+        uses: tj-actions/changed-files@v41
+        with:
+          dir_names: true
+          dir_names_max_depth: "2"
+          files: |
+            examples
+            !examples/cargo-make
+            !examples/gtk
+            !examples/hackernews_js_fetch
+            !examples/Makefile.toml
+            !examples/*.md
+          json: true
+          quotepath: false
+
+      - name: List example project directories that changed
+        run: echo '${{ steps.changed-dirs.outputs.all_changed_files }}'
+
+      - name: Set Matrix
+        id: set-matrix
+        run: |
+          if [ ${{ inputs.example_changed }} == 'true' ]; then
+            # Create matrix with changed directories
+            echo "matrix={\"directory\":${{ steps.changed-dirs.outputs.all_changed_files }}}" >> "$GITHUB_OUTPUT"
+          else
+            # Create matrix with one item to prevent an empty vector error
+            echo "matrix={\"directory\":[\"NO_CHANGE\"]}" >> "$GITHUB_OUTPUT"
+          fi

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

@@ -0,0 +1,39 @@
+name: Examples Changed Call
+
+on:
+  workflow_call:
+    outputs:
+      example_changed:
+        description: "Example Changed"
+        value: ${{ jobs.get-example-changed.outputs.example_changed }}
+
+jobs:
+  get-example-changed:
+    name: Get Example Changed
+    runs-on: ubuntu-latest
+    outputs:
+      example_changed: ${{ steps.set-example-changed.outputs.example_changed }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get example files that changed
+        id: changed-files
+        uses: tj-actions/changed-files@v41
+        with:
+          files: |
+            examples/**
+            !examples/cargo-make
+            !examples/gtk
+            !examples/Makefile.toml
+            !examples/*.md
+
+      - name: List example files that changed
+        run: echo '${{ steps.changed-files.outputs.all_changed_files }}'
+
+      - name: Set example_changed
+        id: set-example-changed
+        run: |
+          echo "example_changed=${{ steps.changed-files.outputs.any_changed }}" >> "$GITHUB_OUTPUT"

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

@@ -0,0 +1,40 @@
+name: Get Examples Matrix Call
+
+on:
+  workflow_call:
+    outputs:
+      matrix:
+        description: "Matrix"
+        value: ${{ jobs.create.outputs.matrix }}
+
+jobs:
+  create:
+    name: Create Examples Matrix
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install JQ Tool
+        uses: mbround18/install-jq@v1
+
+      - name: Set Matrix
+        id: set-matrix
+        run: |
+          examples=$(ls examples |
+          awk '{print "examples/" $0}' |
+          grep -v .md |
+          grep -v examples/Makefile.toml |
+          grep -v examples/cargo-make |
+          grep -v examples/gtk |
+          jq -R -s -c 'split("\n")[:-1]')
+          echo "Example Directories: $examples"
+          echo "matrix={\"directory\":$examples}" >> "$GITHUB_OUTPUT"
+
+      - name: Print Location Info
+        run: |
+          echo "Workspace: ${{ github.workspace }}"
+          pwd
+          ls | sort -u

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

@@ -0,0 +1,44 @@
+name: Get Leptos Changed Call
+
+on:
+  workflow_call:
+    outputs:
+      leptos_changed:
+        description: "Leptos Changed"
+        value: ${{ jobs.create.outputs.leptos_changed }}
+
+jobs:
+  create:
+    name: Detect Source Change
+    runs-on: ubuntu-latest
+    outputs:
+      leptos_changed: ${{ steps.set-source-changed.outputs.leptos_changed }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Get source files that changed
+        id: changed-source
+        uses: tj-actions/changed-files@v41
+        with:
+          files: |
+            integrations/**
+            leptos/**
+            leptos_config/**
+            leptos_dom/**
+            leptos_hot_reload/**
+            leptos_macro/**
+            leptos_reactive/**
+            leptos_server/**
+            meta/**
+            router/**
+            server_fn/**
+            server_fn_macro/**
+
+      - name: List source files that changed
+        run: echo '${{ steps.changed-source.outputs.all_changed_files }}'
+
+      - name: Set leptos_changed
+        id: set-source-changed
+        run: |
+          echo "leptos_changed=${{ steps.changed-source.outputs.any_changed }}" >> "$GITHUB_OUTPUT"

.github/workflows/publish-book.yml

@@ -0,0 +1,37 @@
+name: Deploy book
+on:
+  push:
+    paths: ["docs/book/**"]
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # To push a branch
+      pull-requests: write # To create a PR from that branch
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Install mdbook
+        run: |
+          mkdir mdbook
+          curl -sSL https://github.com/rust-lang/mdBook/releases/download/v0.4.27/mdbook-v0.4.27-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=./mdbook
+          echo `pwd`/mdbook >> $GITHUB_PATH
+      - name: Deploy GitHub Pages
+        run: |
+          cd docs/book
+          mdbook build
+          git worktree add gh-pages
+          git config user.name "Deploy book from CI"
+          git config user.email ""
+          cd gh-pages
+          # Delete the ref to avoid keeping history.
+          git update-ref -d refs/heads/gh-pages
+          rm -rf *
+          mv ../book/* .
+          git add .
+          git commit -m "Deploy book $GITHUB_SHA to gh-pages"
+          git push --force --set-upstream origin gh-pages

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

@@ -0,0 +1,114 @@
+name: Run Task
+
+on:
+  workflow_call:
+    inputs:
+      directory:
+        required: true
+        type: string
+      cargo_make_task:
+        required: true
+        type: string
+      toolchain:
+        required: true
+        type: string
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+
+jobs:
+  test:
+    name: Run ${{ inputs.cargo_make_task }} (${{ inputs.toolchain }})
+    runs-on: ubuntu-latest
+
+    steps:
+      # Setup environment
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ inputs.toolchain }}
+          override: true
+          components: rustfmt
+
+      - name: Add wasm32-unknown-unknown
+        run: rustup target add wasm32-unknown-unknown
+
+      - name: Setup cargo-make
+        uses: davidB/rust-cargo-make@v1
+
+      - name: Cargo generate-lockfile
+        run: cargo generate-lockfile
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Install Trunk
+        uses: jetli/trunk-action@v0.4.0
+        with:
+          version: "latest"
+
+      - name: Print Trunk Version
+        run: trunk --version
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+
+      - uses: pnpm/action-setup@v2
+        name: Install pnpm
+        id: pnpm-install
+        with:
+          version: 8
+          run_install: false
+
+      - name: Get pnpm store directory
+        id: pnpm-cache
+        run: |
+          echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+      - uses: actions/cache@v3
+        name: Setup pnpm cache
+        with:
+          path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Maybe install chromedriver
+        run: |
+          project_makefile=${{inputs.directory}}/Makefile.toml
+          webdriver_count=$(cat $project_makefile | grep "cargo-make/webdriver.toml" | wc -l)
+          if [ $webdriver_count -eq 1 ]; then
+              if ! command -v chromedriver &>/dev/null; then
+                  echo chromedriver required
+                  sudo apt-get update
+                  sudo apt-get install chromium-chromedriver
+              else
+                  echo chromedriver is already installed
+              fi
+          else
+              echo chromedriver is not required
+          fi
+
+      - name: Maybe install playwright browser dependencies
+        run: |
+          for pw_path in $(find ${{inputs.directory}} -name playwright.config.ts)
+          do
+            pw_dir=$(dirname $pw_path)
+            if [ ! -v $pw_dir ]; then
+              echo "Playwright required in $pw_dir"
+              cd $pw_dir
+              pnpm dlx playwright install --with-deps
+            else
+              echo Playwright is not required
+            fi
+          done
+
+      # Run Cargo Make Task
+      - name: ${{ inputs.cargo_make_task }}
+        run: |
+          cd ${{ inputs.directory }}
+          cargo make --profile=github-actions ${{ inputs.cargo_make_task }}

.github/workflows/test.yml

@@ -1,51 +0,0 @@
-name: Test
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-env:
-  CARGO_TERM_COLOR: always
-
-jobs:
-  test:
-    name: Test on ${{ matrix.os }} (using rustc ${{ matrix.rust }})
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        rust:
-          - nightly
-        os:
-          - ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Setup Rust
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{ matrix.rust }}
-          override: true
-
-      - name: Setup cargo-make
-        uses: davidB/rust-cargo-make@v1
-
-      - name: Cargo generate-lockfile
-        run: cargo generate-lockfile
-
-      - name: Cargo cache
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ matrix.rust }}-${{ hashFiles('**/Cargo.lock') }}
-
-      - name: Run tests with all features
-        run: cargo make ci
-

.gitignore

@@ -6,3 +6,9 @@ blob.rs
 Cargo.lock
 **/*.rs.bk
 .DS_Store
+.idea
+.direnv
+.envrc
+
+.vscode
+vendor

ARCHITECTURE.md

@@ -0,0 +1,231 @@
+# Architecture
+
+The goal of this document is to make it easier for contributors (and anyone
+who’s interested!) to understand the architecture of the framework.
+
+The whole Leptos framework is built from a series of layers. Each of these layers
+depends on the one below it, but each can be used independently from the ones
+built on top of it. While running a command like `cargo leptos new --git 
+leptos-rs/start` pulls in the whole framework, it’s important to remember that
+none of this is magic: each layer of that onion can be stripped away and
+reimplemented, configured, or adapted as needed, incrementally.
+
+> Everything that follows will assume you have a good working understanding
+> of the framework. There will be explanations of how some parts of it work
+> or fit together, but these are not docs. They assume you know what I’m
+> talking about.
+
+## The Reactive System: `leptos_reactive`
+
+The reactive system allows you to define dynamic values (signals),
+the relationships between them (derived signals and memos), and the side effects
+that run in response to them (effects).
+
+These concepts are completely independent of the DOM and can be used to drive
+any kind of reactive updates. The reactive system is based on the assumption
+that data is relatively cheap, and side effects are relatively expensive. Its
+goal is to minimize those side effects (like updating the DOM or making a network
+requests) as infrequently as possible.
+
+The reactive system is implemented as a single data structure that exists at
+runtime. In exchange for giving ownership over a value to the reactive system
+(by creating a signal), you receive a `Copy + 'static` identifier for its
+location in the reactive system. This enables most of the ergonomics of storing
+and sharing state, the use of callback closures without lifetime issues, etc.
+This is implemented by storing signals in a slotmap arena. The signal, memo,
+and scope types that are exposed to users simply carry around an index into that
+slotmap.
+
+> Items owned by the reactive system are dropped when the corresponding reactive
+> scope is dropped, i.e., when the component or section of the UI they’re
+> created in is removed. In a sense, Leptos implements a “garbage collector”
+> in which the lifetime of data is tied to the lifetime of the UI, not Rust’s
+> lexical scopes.
+
+## The DOM Renderer: `leptos_dom`
+
+The reactive system can be used to drive any kinds of side effects. One very
+common side effect is calling an imperative method, for example to update the
+DOM.
+
+The entire DOM renderer is built on top of the reactive system. It provides
+a builder pattern that can be used to create DOM elements dynamically.
+
+The renderer assumes, as a convention, that dynamic attributes, classes,
+styles, and children are defined by being passed a `Fn() -> T`, where their
+static equivalents just receive `T`. There’s nothing about this that is
+divinely ordained, but it’s a useful convention because it allows us to use
+zero-overhead derived signals as one of several ways to indicate dynamic
+content.
+
+`leptos_dom` also contains code for server-side rendering of the same
+UI views to HTML, either for out-of-order streaming (`src/ssr.rs`) or
+in-order streaming/async rendering (`src/ssr_in_order.rs`).
+
+## The Macros: `leptos_macro`
+
+It’s entirely possible to write Leptos code with no macros at all. The
+`view` and `component` macros, the most common, can be replaced by
+the builder syntax and simple functions (see the `counter_without_macros`
+example). But the macros enable a JSX-like syntax for describing views.
+
+This package also contains the `Params` derive macro used for typed
+queries and route params in the router.
+
+### Macro-based Optimizations
+
+Leptos 0.0.x was built much more heavily on macros. Taking its cues  
+from SolidJS, the `view` macro emitted different code for CSR, SSR, and
+hydration, optimizing each. The CSR/hydrate versions worked by compiling
+the view to an HTML template string, cloning that `<template>`, and
+traversing the DOM to set up reactivity. The SSR version worked similarly
+by compiling the static parts of the view to strings at compile time,
+reducing the amount of work that needed to be done on each request.
+
+Proc macros are hard, and this system was brittle. 0.1 introduced a
+more robust renderer, including the builder syntax, and rebuilt the `view`
+macro to use that builder syntax instead. It moved the optimized-but-buggy
+CSR version of the macro to a more-limited `template` macro.
+
+The `view` macro now separately optimizes SSR to use the same static-string
+optimizations, which (by our benchmarks) makes Leptos about 3-4x faster
+than similar Rust frontend frameworks in its HTML rendering.
+
+> The optimization is pretty straightforward. Consider the following view:
+>
+> ```rust
+> view! { cx,
+>   <main class="text-center">
+>     <div class="flex-col">
+>       <button>"Click me."</button>
+>       <p class="italic">"Text."</p>
+>     </div>
+>   </main>
+> }
+> ```
+>
+> Internally, with the builder this is something like
+>
+> ```rust
+> Element {
+>   tag: "main",
+>   attrs: vec![("class", "text-center")],
+>   children: vec![
+> 	  Element {
+> 		tag: "div",
+> 		attrs: vec![("class", "flex-col")],
+>       children: vec![
+>         Element {
+> 	        tag: "button",
+> 			attrs: vec![],
+> 			children: vec!["Click me"]
+>         },
+>         Element {
+> 	        tag: "p",
+> 			attrs: vec![("class", "italic")],
+> 			children: vec!["Text"]
+>         }
+>       ]
+> 	  }
+>   ]
+> }
+> ```
+>
+> This is a _bunch_ of small allocations and separate strings,
+> and in early 0.1 versions we used a `SmallVec` for children and
+> attributes and actually caused some stack overflows.
+>
+> But if you look at the view itself you can see that none of this
+> will _ever_ change. So we can actually optimize it at compile
+> time to a single `&'static str`:
+>
+> ```rust
+> r#"<main class="text-center">
+>     <div class="flex-col">
+>       <button>"Click me."</button>
+>       <p class="italic">"Text."</p>
+>     </div>
+>   </main>"#
+> ```
+
+## Server Functions (`leptos_server`, `server_fn`, and `server_fn_macro`)
+
+Server functions are a framework-agnostic shorthand for converting
+a function, whose body can only be run on the server, into an ad hoc
+REST API endpoint, and then generating code on the client to call that
+endpoint when you call the function.
+
+These are inspired by Solid/Bling’s `server$` functions, and there’s
+similar work being done in a number of other JavaScript frameworks.
+
+RPC is not a new idea, but these kinds of server functions may be.
+Specifically, by using web standards (defaulting to `POST`/`GET` requests
+with URL-encoded form data) they allow easy graceful degradation and the
+use of the `<form>` element.
+
+This function is split across three packages so that `server_fn` and
+`server_fn_macro` can be used by other frameworks. `leptos_server`
+includes some Leptos-specific reactive functionality (like actions).
+
+## `leptos`
+
+This package is built on and reexports most of the layers already
+mentioned, and implements a number of control-flow components (`<Show/>`,
+`<ErrorBoundary/>`, `<For/>`, `<Suspense/>`, `<Transition/>`) that use
+public APIs of the other packages.
+
+This is the main entrypoint for users, but is relatively light itself.
+
+## `leptos_meta`
+
+This package exists to allow you to work with tags normally found in
+the `<head>`, from within your components.
+
+It is implemented as a distinct package, rather than part of
+`leptos_dom`, on the principle that “what can be implemented in userland,
+should be.” The framework can be used without it, so it’s not in core.
+
+## `leptos_router`
+
+The router originates as a direct port of `solid-router`, which is the
+origin of most of its terminology, architecture, and route-matching logic.
+
+Subsequent developments (like animated routing, and managing route transitions
+given the lack of `useTransition` in Leptos) have caused it to diverge
+slightly from Solid’s exact code, but it is still very closely related.
+
+The core principle here is “nested routing,” dividing a single page
+into independently-rendered parts. This is described in some detail in the docs.
+
+Like `leptos_meta`, it is implemented as a distinct package, because it
+can be replaced with another router or with none. The framework can be used
+without it, so it’s not in core.
+
+## Server Integrations
+
+The server integrations are the most “frameworky” layer of the whole framework.
+These **do** assume the use of `leptos`, `leptos_router`, and `leptos_meta`.
+They specifically draw routing data from `leptos_router`, and inject the
+metadata from `leptos_meta` into the `<head>` appropriately.
+
+But of course, if you one day create `leptos-helmet` and `leptos-better-router`,
+you can create new server integrations that plug them into the SSR rendering
+methods from `leptos_dom` instead. Everything involved is quite modular.
+
+These packages essentially provide helpers that save the templates and user apps
+from including a huge amount of boilerplate to connect the various other packages
+correctly. Again, early versions of the framework examples are illustrative here
+for reference: they include large amounts of manual SSR route handling, etc.
+
+## `cargo-leptos` helpers
+
+`leptos_config` and `leptos_hot_reload` exist to support two different features
+of `cargo-leptos`, namely its configuration and its view-patching/hot-reloading 
+features.
+
+It’s important to say that the main feature `cargo-leptos` remains its ability
+to conveniently tie together different build tooling, compiling your app to
+WASM for the browser, building the server version, pulling in SASS and
+Tailwind, etc. It is an extremely good build tool, not a magic formula. Each
+of the examples includes instructions for how to run the examples without
+`cargo-leptos`.

CODE_OF_CONDUCT.md

@@ -0,0 +1,51 @@
+# Contributor Covenant Code of Conduct
+
+_This Code of Conduct is based on the [Rust Code of Conduct](https://www.rust-lang.org/policies/code-of-conduct)
+and the [Bevy Code of Conduct](https://raw.githubusercontent.com/bevyengine/bevy/main/CODE_OF_CONDUCT.md),
+which are adapted from the [Node.js Policy on Trolling](http://blog.izs.me/post/30036893703/policy-on-trolling)
+and the [Contributor Covenant](https://www.contributor-covenant.org)._
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+We are a community of people learning and exploring how to build better web applications
+with Rust. When interacting with one another, please remember that there are no experts and there are
+no stupid questions. Assume the best in other people's communication, and take a step back if
+you find yourself getting defensive.
+
+Please note the following guidelines as well:
+
+* Please avoid using overtly sexual aliases or other nicknames that might detract from a friendly, safe and welcoming environment for all.
+* Please be kind and courteous. There’s no need to be mean or rude.
+* Respect that people have differences of opinion and that every design or implementation choice carries a trade-off and numerous costs. There is seldom a right answer.
+* Please keep unstructured critique to a minimum. If you have solid ideas you want to experiment with, make a fork and see how it works.
+* We will exclude you from interaction if you insult, demean or harass anyone. That is not welcome behavior. We interpret the term “harassment” as including the definition in the [Citizen Code of Conduct](https://github.com/stumpsyn/policies/blob/master/citizen_code_of_conduct.md); if you have any lack of clarity about what might be included in that concept, please read their definition. In particular, we don’t tolerate behavior that excludes people in socially marginalized groups.
+* Private harassment is also unacceptable. No matter who you are, if you feel you have been or are being harassed or made uncomfortable by a community member, please contact the maintainers immediately. Whether you’re a regular contributor or a newcomer, we care about making this community a safe place for you and we’ve got your back.
+* Do not make casual mention of slavery or indentured servitude and/or false comparisons of one's occupation or situation to slavery. Please consider using or asking about alternate terminology when referring to such metaphors in technology.
+* Likewise any spamming, trolling, flaming, baiting or other attention-stealing behavior is not welcome.
+
+## Moderation
+
+These are the policies for upholding [our community’s standards of conduct](#our-standards). If you feel that a thread needs moderation, please contact the maintainers.
+
+1. Remarks that violate the community standards of conduct, including hateful, hurtful, oppressive, or exclusionary remarks, are not allowed. (Cursing is allowed, but never targeting another user, and never in a hateful manner).
+2. Remarks that maintainers find inappropriate, whether listed in the code of conduct or not, are also not allowed.
+3. Maintainers will first respond to such remarks with a warning.
+4. If the warning is unheeded, the user will be “kicked,” i.e., kicked out of the communication channel to cool off.
+5. If the user comes back and continues to make trouble, they will be banned, i.e., indefinitely excluded.
+6. Maintainers may choose at their discretion to un-ban the user if it was a first offense and they offer the offended party a genuine apology.
+7. If a maintainer bans someone and you think it was unjustified, please take it up with that maintainer, or with a different maintainer, in private. Complaints about bans in-channel are not allowed.
+8. Maintainers are held to a higher standard than other community members. If a maintainer creates an inappropriate situation, they should expect less leeway than others.
+
+The enforcement policies in the code of conduct apply to all official venues, including Discord channels, GitHub repositories, and all other forums.

CONTRIBUTING.md

@@ -0,0 +1,94 @@
+# Contributing to Leptos
+
+Thanks for your interesting in contributing to Leptos! This is a truly
+community-driven framework, and while we have a central maintainer (@gbj)
+large parts of the renderer, reactive system, and server integrations have
+all been written by other contributors. Contributions are always welcome.
+
+Participation in this community is governed by a [Code of Conduct](./CODE_OF_CONDUCT.md).
+Some of the most active conversations around development take place on our
+[Discord server](https://discord.gg/YdRAhS7eQB).
+
+This guide seeks to
+
+- describe some of the framework’s values (in a technical, not an ethical, sense)
+- provide a high-level overview of how the pieces of the framework fit together
+- orient you to the organization of this repository
+
+## Values
+
+Leptos, as a framework, reflects certain technical values:
+
+- **Expose primitives rather than imposing patterns.** Provide building blocks
+  that users can combine together to build up more complex behavior, rather than
+  requiring users follow certain templates, file formats, etc. e.g., components
+  are defined as functions, rather than a bespoke single-file component format.
+  The reactive system feeds into the rendering system, rather than being defined
+  by it.
+- **Bottom-up over top-down.** If you envision a user’s application as a tree
+  (like an HTML document), push meaning toward the leaves of the tree. e.g., If data
+  needs to be loaded, load it in a granular primitive (resources) rather than a
+  route- or page-level data structure.
+- **Performance by default.** When possible, users should only pay for what they
+  use. e.g., we don’t make all component props reactive by default. This is
+  because doing so would force the overhead of a reactive prop onto props that don’t
+  need to be reactive.
+- **Full-stack performance.** Performance can’t be limited to a single metric,
+  whether that’s a DOM rendering benchmark, WASM binary size, or server response
+  time. Use methods like HTTP streaming and progressive enhancement to enable
+  applications to load, become interactive, and respond as quickly as possible.
+- **Use safe Rust.** There’s no need for `unsafe` Rust in the framework, and
+  avoiding it at all costs reduces the maintenance and testing burden significantly.
+- **Embrace Rust semantics.** Especially in things like UI templating, use Rust
+  semantics or extend them in a predictable way with control-flow components
+  rather than overloading the meaning of Rust terms like `if` or `for` in a
+  framework-specific way.
+- **Enhance ergonomics without obfuscating what’s happening.** This is by far
+  the hardest to achieve. It’s often the case that adding additional layers to
+  improve DX (like a custom build tool and starter templates) comes across as
+  “too magic” to some people who haven’t had to build the same things manually.
+  When possible, make it easier to see how the pieces fit together, without
+  sacrificing the improved DX.
+
+## Processes
+
+We do not have PR templates or formal processes for approving PRs. But there
+are a few guidelines that will make it a better experience for everyone:
+
+- Run `cargo fmt` before submitting your code.
+- Keep PRs limited to addressing one feature or one issue, in general. In some
+  cases (e.g., “reduce allocations in the reactive system”) this may touch a number
+  of different areas, but is still conceptually one thing.
+- If it’s an unsolicited PR not linked to an open issue, please include a
+  specific explanation for what it’s trying to achieve. For example: “When I
+  was trying to deploy my app under _circumstances X_, I found that the way
+  _function Y_ was implemented caused _issue Z_. This PR should fix that by
+  _solution._”
+- Our CI tests every PR against all the existing examples, sometimes requiring
+  compilation for both server and client side, etc. It’s thorough but slow. If
+  you want to run CI locally to reduce frustration, you can do that by installing
+  `cargo-make` and using `cargo make check && cargo make test && cargo make
+check-examples`.
+
+## Before Submitting a PR
+
+We have a fairly extensive CI setup that runs both lints (like `rustfmt` and `clippy`) 
+and tests on PRs. You can run most of these locally if you have `cargo-make` installed.
+
+If you added an example, make sure to add it to the list in `examples/Makefile.toml`.
+
+From the root directory of the repo, run 
+- `cargo +nightly fmt`
+- `cargo +nightly make check`
+- `cargo +nightly make test`
+- `cargo +nightly make check-examples`
+- `cargo +nightly make --profile=github-actions ci`
+
+If you modified an example:
+- `cd examples/your_example`
+- `cargo +nightly fmt -- --config-path ../..`
+- `cargo +nightly make --profile=github-actions verify-flow`
+
+## Architecture
+
+See [ARCHITECTURE.md](./ARCHITECTURE.md).

Cargo.toml

@@ -1,32 +1,51 @@
 [workspace]
+resolver = "2"
 members = [
   # core
   "leptos",
   "leptos_dom",
   "leptos_config",
+  "leptos_hot_reload",
   "leptos_macro",
   "leptos_reactive",
   "leptos_server",
+  "server_fn",
+  "server_fn_macro",
+  "server_fn/server_fn_macro_default",
 
   # integrations
   "integrations/actix",
   "integrations/axum",
+  "integrations/utils",
 
   # libraries
   "meta",
   "router",
-
-  # book
-  "docs/book/project/ch02_getting_started",
-  "docs/book/project/ch03_building_ui",
-  "docs/book/project/ch04_reactivity",
 ]
 exclude = ["benchmarks", "examples"]
 
+[workspace.package]
+version = "0.6.4"
+
+[workspace.dependencies]
+leptos = { path = "./leptos", version = "0.6.4" }
+leptos_dom = { path = "./leptos_dom", version = "0.6.4" }
+leptos_hot_reload = { path = "./leptos_hot_reload", version = "0.6.4" }
+leptos_macro = { path = "./leptos_macro", version = "0.6.4" }
+leptos_reactive = { path = "./leptos_reactive", version = "0.6.4" }
+leptos_server = { path = "./leptos_server", version = "0.6.4" }
+server_fn = { path = "./server_fn", version = "0.6.4" }
+server_fn_macro = { path = "./server_fn_macro", version = "0.6.4" }
+server_fn_macro_default = { path = "./server_fn/server_fn_macro_default", version = "0.6" }
+leptos_config = { path = "./leptos_config", version = "0.6.4" }
+leptos_router = { path = "./router", version = "0.6.4" }
+leptos_meta = { path = "./meta", version = "0.6.4" }
+leptos_integration_utils = { path = "./integrations/utils", version = "0.6.4" }
+
 [profile.release]
 codegen-units = 1
 lto = true
 opt-level = 'z'
 
 [workspace.metadata.cargo-all-features]
-skip_feature_sets = [["csr", "ssr"], ["csr", "hydrate"], ["ssr", "hydrate"]]
+skip_feature_sets = [["csr", "ssr"], ["csr", "hydrate"], ["ssr", "hydrate"]]

Makefile.toml

@@ -3,27 +3,37 @@
 #     cargo install --force cargo-make
 ############
 
-[config]
-# make tasks run at the workspace root
-default_to_workspace = false
+[env]
+CARGO_MAKE_EXTEND_WORKSPACE_MAKEFILE = true
 
-[tasks.ci]
-dependencies = ["build", "test"]
-
-[tasks.build]
+[tasks.check-stable]
+workspace = false
 clear = true
-dependencies = ["build-all"]
+dependencies = [
+	{ name = "check", path = "examples/counter_without_macros" },
+	{ name = "check", path = "examples/counters_stable" },
+]
 
-[tasks.build-all]
+[tasks.ci-examples]
+workspace = false
+cwd = "examples"
 command = "cargo"
-args = ["+nightly", "build-all-features"]
-install_crate = "cargo-all-features"
+args = ["make", "ci-clean"]
 
-[tasks.test]
-clear = true
-dependencies = ["test-all"]
-
-[tasks.test-all]
+[tasks.check-examples]
+workspace = false
+cwd = "examples"
 command = "cargo"
-args = ["+nightly", "test-all-features"]
-install_crate = "cargo-all-features"
+args = ["make", "check-clean"]
+
+[tasks.build-examples]
+workspace = false
+cwd = "examples"
+command = "cargo"
+args = ["make", "build-clean"]
+
+[tasks.clean-examples]
+workspace = false
+cwd = "examples"
+command = "cargo"
+args = ["make", "clean"]

README.md

@@ -1,10 +1,16 @@
-**NOTE: We're in the middle of merging changes and making fixes to support our upcoming `0.1.0` release. Some of the examples may be in a broken state. You can continue using the `0.0` releases with no issues.**
-
-<img src="https://raw.githubusercontent.com/gbj/leptos/main/docs/logos/logo.svg" alt="Leptos Logo" style="width: 100%; height: auto; display: block; margin: auto;">
+<picture>
+    <source srcset="https://raw.githubusercontent.com/leptos-rs/leptos/main/docs/logos/Leptos_logo_pref_dark_RGB.svg" media="(prefers-color-scheme: dark)">
+    <img src="https://raw.githubusercontent.com/leptos-rs/leptos/main/docs/logos/Leptos_logo_RGB.svg" alt="Leptos Logo">
+</picture>
 
 [![crates.io](https://img.shields.io/crates/v/leptos.svg)](https://crates.io/crates/leptos)
 [![docs.rs](https://docs.rs/leptos/badge.svg)](https://docs.rs/leptos)
 [![Discord](https://img.shields.io/discord/1031524867910148188?color=%237289DA&label=discord)](https://discord.gg/YdRAhS7eQB)
+[![Matrix](https://img.shields.io/badge/Matrix-leptos-grey?logo=matrix&labelColor=white&logoColor=black)](https://matrix.to/#/#leptos:matrix.org)
+
+[Website](https://leptos.dev) | [Book](https://leptos-rs.github.io/leptos/) | [Docs.rs](https://docs.rs/leptos/latest/leptos/) | [Playground](https://codesandbox.io/p/sandbox/leptos-rtfggt?file=%2Fsrc%2Fmain.rs%3A1%2C1) | [Discord](https://discord.gg/YdRAhS7eQB)
+
+You can find a list of useful libraries and example projects at [`awesome-leptos`](https://github.com/leptos-rs/awesome-leptos).
 
 # Leptos
 
@@ -12,9 +18,9 @@
 use leptos::*;
 
 #[component]
-pub fn SimpleCounter(cx: Scope, initial_value: i32) -> impl IntoView {
+pub fn SimpleCounter(initial_value: i32) -> impl IntoView {
     // create a reactive signal with the initial value
-    let (value, set_value) = create_signal(cx, initial_value);
+    let (value, set_value) = create_signal(initial_value);
 
     // create event handlers for our buttons
     // note that `value` and `set_value` are `Copy`, so it's super easy to move them into closures
@@ -24,21 +30,41 @@ pub fn SimpleCounter(cx: Scope, initial_value: i32) -> impl IntoView {
 
     // create user interfaces with the declarative `view!` macro
     view! {
-        cx,
         <div>
-            <button on:click=clear>"Clear"</button>
-            <button on:click=decrement>"-1"</button>
-            <span>"Value: " {move || value().to_string()} "!"</span>
-            <button on:click=increment>"+1"</button>
+            <button on:click=clear>Clear</button>
+            <button on:click=decrement>-1</button>
+            // text nodes can be quoted or unquoted
+            <span>"Value: " {value} "!"</span>
+            <button on:click=increment>+1</button>
         </div>
     }
 }
 
-// Easy to use with Trunk (trunkrs.dev) or with a simple wasm-bindgen setup
-pub fn main() {
-    mount_to_body(|cx| view! { cx,  <SimpleCounter initial_value=3 /> })
+// we also support a builder syntax rather than the JSX-like `view` macro
+#[component]
+pub fn SimpleCounterWithBuilder(initial_value: i32) -> impl IntoView {
+    use leptos::html::*;
+
+    let (value, set_value) = create_signal(initial_value);
+    let clear = move |_| set_value(0);
+    let decrement = move |_| set_value.update(|value| *value -= 1);
+    let increment = move |_| set_value.update(|value| *value += 1);
+
+    // the `view` macro above expands to this builder syntax
+    div().child((
+        button().on(ev::click, clear).child("Clear"),
+        button().on(ev::click, decrement).child("-1"),
+        span().child(("Value: ", value, "!")),
+        button().on(ev::click, increment).child("+1")
+    ))
 }
 
+// Easy to use with Trunk (trunkrs.dev) or with a simple wasm-bindgen setup
+pub fn main() {
+    mount_to_body(|| view! {
+        <SimpleCounter initial_value=3 />
+    })
+}
 ```
 
 ## About the Framework
@@ -47,28 +73,27 @@ Leptos is a full-stack, isomorphic Rust web framework leveraging fine-grained re
 
 ## What does that mean?
 
-- **Full-stack**: Leptos can be used to build apps that run in the browser (_client-side rendering_), on the server (_server-side rendering_), or by rendering HTML on the server and then adding interactivity in the browser (_hydration_). This includes support for _HTTP streaming_ of both data (`Resource`s) and HTML (out-of-order streaming of `<Suspense/>` components.)
-- **Isomorphic**: Leptos provides primitives to write isomorphic server functions, i.e., functions that can be called with the “same shape” on the client or server, but only run on the server. This means you can write your server-only logic (database requests, authentication etc.) alongside the client-side components that will consume it, and call server functions as if they were running in the browser.
-- **Web**: Leptos is built on the Web platform and Web standards. The router is designed to use Web fundamentals (like links and forms) and build on top of them rather than trying to replace them.
+- **Full-stack**: Leptos can be used to build apps that run in the browser (client-side rendering), on the server (server-side rendering), or by rendering HTML on the server and then adding interactivity in the browser (server-side rendering with hydration). This includes support for HTTP streaming of both data ([`Resource`s](https://docs.rs/leptos/latest/leptos/struct.Resource.html)) and HTML (out-of-order or in-order streaming of [`<Suspense/>`](https://docs.rs/leptos/latest/leptos/fn.Suspense.html) components.)
+- **Isomorphic**: Leptos provides primitives to write isomorphic [server functions](https://docs.rs/leptos_server/0.2.5/leptos_server/index.html), i.e., functions that can be called with the “same shape” on the client or server, but only run on the server. This means you can write your server-only logic (database requests, authentication etc.) alongside the client-side components that will consume it, and call server functions as if they were running in the browser, without needing to create and maintain a separate REST or other API.
+- **Web**: Leptos is built on the Web platform and Web standards. The [router](https://docs.rs/leptos_router/latest/leptos_router/) is designed to use Web fundamentals (like links and forms) and build on top of them rather than trying to replace them.
 - **Framework**: Leptos provides most of what you need to build a modern web app: a reactive system, templating library, and a router that works on both the server and client side.
-- **Fine-grained reactivity**: The entire framework is built from reactive primitives. This allows for extremely performant code with minimal overhead: when a reactive signal’s value changes, it can update a single text node, toggle a single class, or remove an element from the DOM without any other code running. (_So, no virtual DOM!_)
+- **Fine-grained reactivity**: The entire framework is built from reactive primitives. This allows for extremely performant code with minimal overhead: when a reactive signal’s value changes, it can update a single text node, toggle a single class, or remove an element from the DOM without any other code running. (So, no virtual DOM overhead!)
 - **Declarative**: Tell Leptos how you want the page to look, and let the framework tell the browser how to do it.
 
 ## Learn more
 
 Here are some resources for learning more about Leptos:
 
-- [Examples](https://github.com/gbj/leptos/tree/main/examples)
+- [Book](https://leptos-rs.github.io/leptos/) (work in progress)
+- [Examples](https://github.com/leptos-rs/leptos/tree/main/examples)
 - [API Documentation](https://docs.rs/leptos/latest/leptos/)
-- [Common Bugs](https://github.com/gbj/leptos/tree/main/docs/COMMON_BUGS.md) (and how to fix them!)
-- Leptos Guide (in progress)
-
+- [Common Bugs](https://github.com/leptos-rs/leptos/tree/main/docs/COMMON_BUGS.md) (and how to fix them!)
 
 ## `nightly` Note
 
-Most of the examples assume you’re using `nightly` Rust.
+Most of the examples assume you’re using `nightly` version of Rust and the `nightly` feature of Leptos. To use `nightly` Rust, you can either set your toolchain globally or on per-project basis.
 
-To set up your Rust toolchain using `nightly` (and add the ability to compile Rust to WebAssembly, if you haven’t already)
+To set `nightly` as a default toolchain for all projects (and add the ability to compile Rust to WebAssembly, if you haven’t already):
 
 ```
 rustup toolchain install nightly
@@ -76,17 +101,19 @@ rustup default nightly
 rustup target add wasm32-unknown-unknown
 ```
 
-If you’re on `stable`, note the following:
+If you'd like to use `nightly` only in your Leptos project however, add [`rust-toolchain.toml`](https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file) file with the following content:
 
-1. You need to enable the `"stable"` flag in `Cargo.toml`: `leptos = { version = "0.1.0-alpha", features = ["stable"] }`
-2. `nightly` enables the function call syntax for accessing and setting signals. If you’re using `stable`,
-   you’ll just call `.get()`, `.set()`, or `.update()` manually. Check out the
-   [`counters-stable` example](https://github.com/gbj/leptos/blob/main/examples/counters-stable/src/main.rs)
-   for examples of the correct API.
+```toml
+[toolchain]
+channel = "nightly"
+targets = ["wasm32-unknown-unknown"]
+```
+
+The `nightly` feature enables the function call syntax for accessing and setting signals, as opposed to `.get()` and `.set()`. This leads to a consistent mental model in which accessing a reactive value of any kind (a signal, memo, or derived signal) is always represented as a function call. This is only possible with nightly Rust and the `nightly` feature.
 
 ## `cargo-leptos`
 
-[`cargo-leptos`](https://github.com/akesson/cargo-leptos) is a build tool that's designed to make it easy to build apps that run on both the client and the server, with seamless integration. The best way to get started with a real Leptos project right now is to use `cargo-leptos` and our [starter template](https://github.com/leptos-rs/start).
+[`cargo-leptos`](https://github.com/leptos-rs/cargo-leptos) is a build tool that's designed to make it easy to build apps that run on both the client and the server, with seamless integration. The best way to get started with a real Leptos project right now is to use `cargo-leptos` and our starter templates for [Actix](https://github.com/leptos-rs/start) or [Axum](https://github.com/leptos-rs/start-axum).
 
 ```bash
 cargo install cargo-leptos
@@ -95,8 +122,32 @@ cd [your project name]
 cargo leptos watch
 ```
 
+Open browser to [http://localhost:3000/](http://localhost:3000/).
+
 ## FAQs
 
+### What’s up with the name?
+
+_Leptos_ (λεπτός) is an ancient Greek word meaning “thin, light, refined, fine-grained.” To me, a classicist and not a dog owner, it evokes the lightweight reactive system that powers the framework. I've since learned the same word is at the root of the medical term “leptospirosis,” a blood infection that affects humans and animals... My bad. No dogs were harmed in the creation of this framework.
+
+### Is it production ready?
+
+People usually mean one of three things by this question.
+
+1. **Are the APIs stable?** i.e., will I have to rewrite my whole app from Leptos 0.1 to 0.2 to 0.3 to 0.4, or can I write it now and benefit from new features and updates as new versions come?
+
+The APIs are basically settled. We’re adding new features, but we’re very happy with where the type system and patterns have landed. I would not expect major breaking changes to your code to adapt to future releases, in terms of architecture.
+
+2. **Are there bugs?**
+
+Yes, I’m sure there are. You can see from the state of our issue tracker over time that there aren’t that _many_ bugs and they’re usually resolved pretty quickly. But for sure, there may be moments where you encounter something that requires a fix at the framework level, which may not be immediately resolved.
+
+3. **Am I a consumer or a contributor?**
+
+This may be the big one: “production ready” implies a certain orientation to a library: that you can basically use it, without any special knowledge of its internals or ability to contribute. Everyone has this at some level in their stack: for example I (@gbj) don’t have the capacity or knowledge to contribute to something like `wasm-bindgen` at this point: I simply rely on it to work.
+
+There are several people in the community using Leptos right now for internal apps at work, who have also become significant contributors. I think this is the right level of production use for now. There may be missing features that you need, and you may end up building them! But for internal apps, if you’re willing to build and contribute missing pieces along the way, the framework is definitely usable right now.
+
 ### Can I use this for native GUI?
 
 Sure! Obviously the `view` macro is for generating DOM nodes but you can use the reactive system to drive native any GUI toolkit that uses the same kind of object-oriented, event-callback-based framework as the DOM pretty easily. The principles are the same:
@@ -106,38 +157,29 @@ Sure! Obviously the `view` macro is for generating DOM nodes but you can use the
 - Use event listeners to update signals
 - Create effects to update the UI
 
-I've put together a [very simple GTK example](https://github.com/gbj/leptos/blob/main/examples/gtk/src/main.rs) so you can see what I mean.
+I've put together a [very simple GTK example](https://github.com/leptos-rs/leptos/blob/main/examples/gtk/src/main.rs) so you can see what I mean.
 
-### How is this different from Yew/Dioxus?
+The new rendering approach being developed for 0.7 supports “universal rendering,” i.e., it can use any rendering library that supports a small set of 6-8 functions. (This is intended as a layer over typical retained-mode, OOP-style GUI toolkits like the DOM, GTK, etc.) That future rendering work will allow creating native UI in a way that is much more similar to the declarative approach used by the web framework.
 
-On the surface level, these libraries may seem similar. Yew is, of course, the most mature Rust library for web UI development and has a huge ecosystem. Dioxus is similar in many ways, being heavily inspired by React. Here are some conceptual differences between Leptos and these frameworks:
+### How is this different from Yew?
+
+Yew is the most-used library for Rust web UI development, but there are several differences between Yew and Leptos, in philosophy, approach, and performance. 
 
 - **VDOM vs. fine-grained:** Yew is built on the virtual DOM (VDOM) model: state changes cause components to re-render, generating a new virtual DOM tree. Yew diffs this against the previous VDOM, and applies those patches to the actual DOM. Component functions rerun whenever state changes. Leptos takes an entirely different approach. Components run once, creating (and returning) actual DOM nodes and setting up a reactive system to update those DOM nodes.
-- **Performance:** This has huge performance implications: Leptos is simply _much_ faster at both creating and updating the UI than Yew is.
-- **Mental model:** Adopting fine-grained reactivity also tends to simplify the mental model. There are no surprising component re-renders because there are no re-renders. Your app can be divided into components based on what makes sense for your app, because they have no performance implications.
+- **Performance:** This has huge performance implications: Leptos is simply much faster at both creating and updating the UI than Yew is.
+- **Server integration:** Yew was created in an era in which browser-rendered single-page apps (SPAs) were the dominant paradigm. While Leptos supports client-side rendering, it also focuses on integrating with the server side of your application via server functions and multiple modes of serving HTML, including out-of-order streaming.
 
-### How is this different from Sycamore?
+- ### How is this different from Dioxus?
 
-Conceptually, these two frameworks are very similar: because both are built on fine-grained reactivity, most apps will end up looking very similar between the two, and Sycamore or Leptos apps will both look a lot like SolidJS apps, in the same way that Yew or Dioxus can look a lot like React.
+Like Leptos, Dioxus is a framework for building UIs using web technologies. However, there are significant differences in approach and features.
 
-There are some practical differences that make a significant difference:
+- **VDOM vs. fine-grained:** While Dioxus has a performant virtual DOM (VDOM), it still uses coarse-grained/component-scoped reactivity: changing a stateful value reruns the component function and diffs the old UI against the new one. Leptos components use a different mental model, creating (and returning) actual DOM nodes and setting up a reactive system to update those DOM nodes.
+- **Web vs. desktop priorities:** Dioxus uses Leptos server functions in its fullstack mode, but does not have the same `<Suspense>`-based support for things like streaming HTML rendering, or share the same focus on holistic web performance. Leptos tends to prioritize holistic web performance (streaming HTML rendering, smaller WASM binary sizes, etc.), whereas Dioxus has an unparalleled experience when building desktop apps, because your application logic runs as a native Rust binary.
 
-- **Maturity:** Sycamore is obviously a much more mature and stable library with a larger ecosystem.
-- **Templating:** Leptos uses a JSX-like template format (built on [syn-rsx](https://github.com/stoically/syn-rsx)) for its `view` macro. Sycamore offers the choice of its own templating DSL or a builder syntax.
-- **Template node cloning:** Leptos's `view` macro compiles to a static HTML string and a set of instructions of how to assign its reactive values. This means that at runtime, Leptos can clone a `<template>` node rather than calling `document.createElement()` to create DOM nodes. This is a _significantly_ faster way of rendering components.
-- **Read-write segregation:** Leptos, like Solid, encourages read-write segregation between signal getters and setters, so you end up accessing signals with tuples like `let (count, set_count) = create_signal(cx, 0);` _(If you prefer or if it's more convenient for your API, you can use `create_rw_signal` to give a unified read/write signal.)_
-- **Signals are functions:** In Leptos, you can call a signal to access it rather than calling a specific method (so, `count()` instead of `count.get()`) This creates a more consistent mental model: accessing a reactive value is always a matter of calling a function. For example:
+- ### How is this different from Sycamore?
 
-  ```rust
-  let (count, set_count) = create_signal(cx, 0); // a signal
-  let double_count = move || count() * 2; // a derived signal
-  let memoized_count = create_memo(cx, move |_| count() * 3); // a memo
-  // all are accessed by calling them
-  assert_eq!(count(), 0);
-  assert_eq!(double_count(), 0);
-  assert_eq!(memoized_count(), 0);
-  // this function can accept any of those signals
-  fn do_work_on_signal(my_signal: impl Fn() -> i32) { ... }
-  ```
+Sycamore and Leptos are both heavily influenced by SolidJS. At this point, Leptos has a larger community and ecosystem and is more actively developed. Other differences:
 
-- **Signals and scopes are `'static`:** Both Leptos and Sycamore ease the pain of moving signals in closures (in particular, event listeners) by making them `Copy`, to avoid the `{ let count = count.clone(); move |_| ... }` that's very familiar in Rust UI code. Sycamore does this by using bump allocation to tie the lifetimes of its signals to its scopes: since references are `Copy`, `&'a Signal<T>` can be moved into a closure. Leptos does this by using arena allocation and passing around indices: types like `ReadSignal<T>`, `WriteSignal<T>`, and `Memo<T>` are actually wrappers for indices into an arena. This means that both scopes and signals are both `Copy` and `'static` in Leptos, which means that they can be moved easily into closures without adding lifetime complexity.
+- **Templating DSLs:** Sycamore uses a custom templating language for its views, while Leptos uses a JSX-like template format.
+- **`'static` signals:** One of Leptos’s main innovations was the creation of `Copy + 'static` signals, which have excellent ergonomics. Sycamore is in the process of adopting the same pattern, but this is not yet released.
+- **Perseus vs. server functions:** The Perseus metaframework provides an opinionated way to build Sycamore apps that include server functionality. Leptos instead provides primitives like server functions in the core of the framework. 

SECURITY.md

@@ -0,0 +1,13 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+To report a suspected security issue, please contact security@leptos.dev rather than opening
+a public issue.
+
+## Supported Versions
+
+The most-recently-released version of the library is supported with security updates.
+For example, if a security issue is discovered that affects 0.3.2 and all later releases,
+a 0.4.x patch will be released but a new 0.3.x patch release will not be made. You should 
+plan to update to the latest version to receive any new features or bugfixes of any kind.

benchmarks/Cargo.toml

@@ -4,9 +4,19 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-leptos = { path = "../leptos", default-features = false, features = ["ssr"] }
+l0410 = { package = "leptos", version = "0.4.10", features = [
+	"nightly",
+	"ssr",
+] }
+leptos = { path = "../leptos", features = ["ssr", "nightly"] }
+leptos_reactive = { path = "../leptos_reactive", features = ["ssr", "nightly"] }
+tachydom = { git = "https://github.com/gbj/tachys", features = [
+	"nightly",
+	"leptos",
+] }
+tachy_maccy = { git = "https://github.com/gbj/tachys", features = ["nightly"] }
 sycamore = { version = "0.8", features = ["ssr"] }
-yew = { git = "https://github.com/yewstack/yew", features = ["ssr"] }
+yew = { version = "0.20", features = ["ssr"] }
 tokio-test = "0.4"
 miniserde = "0.1"
 gloo = "0.8"
@@ -16,15 +26,10 @@ lazy_static = "1"
 log = "0.4"
 strum = "0.24"
 strum_macros = "0.24"
-serde = { version = "1", features = ["derive", "rc"]}
+serde = { version = "1", features = ["derive", "rc"] }
 serde_json = "1"
 tera = "1"
 
 [dependencies.web-sys]
 version = "0.3"
-features = [
-	"Window",
-	"Document",
-	"HtmlElement",
-	"HtmlInputElement"
-]
+features = ["Window", "Document", "HtmlElement", "HtmlInputElement"]

benchmarks/src/lib.rs

@@ -2,6 +2,6 @@
 
 extern crate test;
 
-//mod reactive;
+mod reactive;
 mod ssr;
 mod todomvc;

benchmarks/src/reactive.rs

@@ -1,40 +1,227 @@
+use std::{cell::Cell, rc::Rc};
 use test::Bencher;
 
-use std::{cell::Cell, rc::Rc};
-
 #[bench]
-fn leptos_create_1000_signals(b: &mut Bencher) {
-    use leptos::{create_isomorphic_effect, create_memo, create_scope, create_signal};
+fn leptos_deep_creation(b: &mut Bencher) {
+    use leptos::*;
+    let runtime = create_runtime();
 
     b.iter(|| {
-        create_scope(|cx| {
+        let signal = create_rw_signal(0);
+        let mut memos = Vec::<Memo<usize>>::new();
+        for _ in 0..1000usize {
+            let prev = memos.last().copied();
+            if let Some(prev) = prev {
+                memos.push(create_memo(move |_| prev.get() + 1));
+            } else {
+                memos.push(create_memo(move |_| signal.get() + 1));
+            }
+        }
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn leptos_deep_update(b: &mut Bencher) {
+    use leptos::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        let signal = create_rw_signal(0);
+        let mut memos = Vec::<Memo<usize>>::new();
+        for _ in 0..1000usize {
+            if let Some(prev) = memos.last().copied() {
+                memos.push(create_memo(move |_| prev.get() + 1));
+            } else {
+                memos.push(create_memo(move |_| signal.get() + 1));
+            }
+        }
+        signal.set(1);
+        assert_eq!(memos[999].get(), 1001);
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn leptos_narrowing_down(b: &mut Bencher) {
+    use leptos::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        let sigs = (0..1000).map(|n| create_signal(n)).collect::<Vec<_>>();
+        let reads = sigs.iter().map(|(r, _)| *r).collect::<Vec<_>>();
+        let writes = sigs.iter().map(|(_, w)| *w).collect::<Vec<_>>();
+        let memo =
+            create_memo(move |_| reads.iter().map(|r| r.get()).sum::<i32>());
+        assert_eq!(memo(), 499500);
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn leptos_fanning_out(b: &mut Bencher) {
+    use leptos::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        let sig = create_rw_signal(0);
+        let memos = (0..1000)
+            .map(|_| create_memo(move |_| sig.get()))
+            .collect::<Vec<_>>();
+        assert_eq!(memos.iter().map(|m| m.get()).sum::<i32>(), 0);
+        sig.set(1);
+        assert_eq!(memos.iter().map(|m| m.get()).sum::<i32>(), 1000);
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn leptos_narrowing_update(b: &mut Bencher) {
+    use leptos::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        let acc = Rc::new(Cell::new(0));
+        let sigs = (0..1000).map(|n| create_signal(n)).collect::<Vec<_>>();
+        let reads = sigs.iter().map(|(r, _)| *r).collect::<Vec<_>>();
+        let writes = sigs.iter().map(|(_, w)| *w).collect::<Vec<_>>();
+        let memo =
+            create_memo(move |_| reads.iter().map(|r| r.get()).sum::<i32>());
+        assert_eq!(memo(), 499500);
+        create_isomorphic_effect({
+            let acc = Rc::clone(&acc);
+            move |_| {
+                acc.set(memo());
+            }
+        });
+        assert_eq!(acc.get(), 499500);
+
+        writes[1].update(|n| *n += 1);
+        writes[10].update(|n| *n += 1);
+        writes[100].update(|n| *n += 1);
+
+        assert_eq!(acc.get(), 499503);
+        assert_eq!(memo(), 499503);
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn l0410_deep_creation(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        create_scope(runtime, |cx| {
+            let signal = create_rw_signal(cx, 0);
+            let mut memos = Vec::<Memo<usize>>::new();
+            for _ in 0..1000usize {
+                if let Some(prev) = memos.last().copied() {
+                    memos.push(create_memo(cx, move |_| prev.get() + 1));
+                } else {
+                    memos.push(create_memo(cx, move |_| signal.get() + 1));
+                }
+            }
+        })
+        .dispose()
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn l0410_deep_update(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        create_scope(runtime, |cx| {
+            let signal = create_rw_signal(cx, 0);
+            let mut memos = Vec::<Memo<usize>>::new();
+            for _ in 0..1000usize {
+                if let Some(prev) = memos.last().copied() {
+                    memos.push(create_memo(cx, move |_| prev.get() + 1));
+                } else {
+                    memos.push(create_memo(cx, move |_| signal.get() + 1));
+                }
+            }
+            signal.set(1);
+            assert_eq!(memos[999].get(), 1001);
+        })
+        .dispose()
+    });
+
+    runtime.dispose();
+}
+
+#[bench]
+fn l0410_narrowing_down(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        create_scope(runtime, |cx| {
             let acc = Rc::new(Cell::new(0));
-            let sigs = (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>();
+            let sigs =
+                (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>();
             let reads = sigs.iter().map(|(r, _)| *r).collect::<Vec<_>>();
             let writes = sigs.iter().map(|(_, w)| *w).collect::<Vec<_>>();
-            let memo = create_memo(cx, move |_| reads.iter().map(|r| r.get()).sum::<i32>());
+            let memo = create_memo(cx, move |_| {
+                reads.iter().map(|r| r.get()).sum::<i32>()
+            });
             assert_eq!(memo(), 499500);
         })
         .dispose()
     });
+
+    runtime.dispose();
 }
 
 #[bench]
-fn leptos_create_and_update_1000_signals(b: &mut Bencher) {
-    use leptos::{create_isomorphic_effect, create_memo, create_scope, create_signal};
+fn l0410_fanning_out(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
 
     b.iter(|| {
-        create_scope(|cx| {
+        create_scope(runtime, |cx| {
+            let sig = create_rw_signal(cx, 0);
+            let memos = (0..1000)
+                .map(|_| create_memo(cx, move |_| sig.get()))
+                .collect::<Vec<_>>();
+            assert_eq!(memos.iter().map(|m| m.get()).sum::<i32>(), 0);
+            sig.set(1);
+            assert_eq!(memos.iter().map(|m| m.get()).sum::<i32>(), 1000);
+        })
+        .dispose()
+    });
+
+    runtime.dispose();
+}
+#[bench]
+fn l0410_narrowing_update(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
+
+    b.iter(|| {
+        create_scope(runtime, |cx| {
             let acc = Rc::new(Cell::new(0));
-            let sigs = (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>();
+            let sigs =
+                (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>();
             let reads = sigs.iter().map(|(r, _)| *r).collect::<Vec<_>>();
             let writes = sigs.iter().map(|(_, w)| *w).collect::<Vec<_>>();
-            let memo = create_memo(cx, move |_| reads.iter().map(|r| r.get()).sum::<i32>());
-            assert_eq!(memo(), 499500);
+            let memo = create_memo(cx, move |_| {
+                reads.iter().map(|r| r.get()).sum::<i32>()
+            });
+            assert_eq!(memo.get(), 499500);
             create_isomorphic_effect(cx, {
                 let acc = Rc::clone(&acc);
                 move |_| {
-                    acc.set(memo());
+                    acc.set(memo.get());
                 }
             });
             assert_eq!(acc.get(), 499500);
@@ -44,27 +231,30 @@ fn leptos_create_and_update_1000_signals(b: &mut Bencher) {
             writes[100].update(|n| *n += 1);
 
             assert_eq!(acc.get(), 499503);
-            assert_eq!(memo(), 499503);
+            assert_eq!(memo.get(), 499503);
         })
         .dispose()
     });
+
+    runtime.dispose();
 }
 
 #[bench]
-fn leptos_create_and_dispose_1000_scopes(b: &mut Bencher) {
-    use leptos::{create_isomorphic_effect, create_scope, create_signal};
+fn l0410_scope_creation_and_disposal(b: &mut Bencher) {
+    use l0410::*;
+    let runtime = create_runtime();
 
     b.iter(|| {
         let acc = Rc::new(Cell::new(0));
         let disposers = (0..1000)
             .map(|_| {
-                create_scope({
+                create_scope(runtime, {
                     let acc = Rc::clone(&acc);
                     move |cx| {
                         let (r, w) = create_signal(cx, 0);
                         create_isomorphic_effect(cx, {
                             move |_| {
-                                acc.set(r());
+                                acc.set(r.get());
                             }
                         });
                         w.update(|n| *n += 1);
@@ -76,16 +266,22 @@ fn leptos_create_and_dispose_1000_scopes(b: &mut Bencher) {
             disposer.dispose();
         }
     });
+
+    runtime.dispose();
 }
 
 #[bench]
-fn sycamore_create_1000_signals(b: &mut Bencher) {
-    use sycamore::reactive::{create_effect, create_memo, create_scope, create_signal};
+fn sycamore_narrowing_down(b: &mut Bencher) {
+    use sycamore::reactive::{
+        create_effect, create_memo, create_scope, create_signal,
+    };
 
     b.iter(|| {
         let d = create_scope(|cx| {
             let acc = Rc::new(Cell::new(0));
-            let sigs = Rc::new((0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>());
+            let sigs = Rc::new(
+                (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>(),
+            );
             let memo = create_memo(cx, {
                 let sigs = Rc::clone(&sigs);
                 move || sigs.iter().map(|r| *r.get()).sum::<i32>()
@@ -97,13 +293,78 @@ fn sycamore_create_1000_signals(b: &mut Bencher) {
 }
 
 #[bench]
-fn sycamore_create_and_update_1000_signals(b: &mut Bencher) {
-    use sycamore::reactive::{create_effect, create_memo, create_scope, create_signal};
+fn sycamore_fanning_out(b: &mut Bencher) {
+    use sycamore::reactive::{
+        create_effect, create_memo, create_scope, create_signal,
+    };
+
+    b.iter(|| {
+        let d = create_scope(|cx| {
+            let sig = create_signal(cx, 0);
+            let memos = (0..1000)
+                .map(|_| create_memo(cx, move || sig.get()))
+                .collect::<Vec<_>>();
+            assert_eq!(memos.iter().map(|m| *(*m.get())).sum::<i32>(), 0);
+            sig.set(1);
+            assert_eq!(memos.iter().map(|m| *(*m.get())).sum::<i32>(), 1000);
+        });
+        unsafe { d.dispose() };
+    });
+}
+
+#[bench]
+fn sycamore_deep_creation(b: &mut Bencher) {
+    use sycamore::reactive::*;
+
+    b.iter(|| {
+        let d = create_scope(|cx| {
+            let signal = create_signal(cx, 0);
+            let mut memos = Vec::<&ReadSignal<usize>>::new();
+            for _ in 0..1000usize {
+                if let Some(prev) = memos.last().copied() {
+                    memos.push(create_memo(cx, move || *prev.get() + 1));
+                } else {
+                    memos.push(create_memo(cx, move || *signal.get() + 1));
+                }
+            }
+        });
+        unsafe { d.dispose() };
+    });
+}
+
+#[bench]
+fn sycamore_deep_update(b: &mut Bencher) {
+    use sycamore::reactive::*;
+
+    b.iter(|| {
+        let d = create_scope(|cx| {
+            let signal = create_signal(cx, 0);
+            let mut memos = Vec::<&ReadSignal<usize>>::new();
+            for _ in 0..1000usize {
+                if let Some(prev) = memos.last().copied() {
+                    memos.push(create_memo(cx, move || *prev.get() + 1));
+                } else {
+                    memos.push(create_memo(cx, move || *signal.get() + 1));
+                }
+            }
+            signal.set(1);
+            assert_eq!(*memos[999].get(), 1001);
+        });
+        unsafe { d.dispose() };
+    });
+}
+#[bench]
+fn sycamore_narrowing_update(b: &mut Bencher) {
+    use sycamore::reactive::{
+        create_effect, create_memo, create_scope, create_signal,
+    };
 
     b.iter(|| {
         let d = create_scope(|cx| {
             let acc = Rc::new(Cell::new(0));
-            let sigs = Rc::new((0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>());
+            let sigs = Rc::new(
+                (0..1000).map(|n| create_signal(cx, n)).collect::<Vec<_>>(),
+            );
             let memo = create_memo(cx, {
                 let sigs = Rc::clone(&sigs);
                 move || sigs.iter().map(|r| *r.get()).sum::<i32>()
@@ -129,7 +390,7 @@ fn sycamore_create_and_update_1000_signals(b: &mut Bencher) {
 }
 
 #[bench]
-fn sycamore_create_and_dispose_1000_scopes(b: &mut Bencher) {
+fn sycamore_scope_creation_and_disposal(b: &mut Bencher) {
     use sycamore::reactive::{create_effect, create_scope, create_signal};
 
     b.iter(|| {

benchmarks/src/ssr.rs

@@ -2,15 +2,14 @@ use test::Bencher;
 
 #[bench]
 fn leptos_ssr_bench(b: &mut Bencher) {
-	b.iter(|| {
-		use leptos::*;
-
-		_ = create_scope(create_runtime(), |cx| {
+	use leptos::*;
+	let r = create_runtime();
+    b.iter(|| {
+			leptos::leptos_dom::HydrationCtx::reset_id();
 			#[component]
-			fn Counter(cx: Scope, initial: i32) -> impl IntoView {
-				let (value, set_value) = create_signal(cx, initial);
+			fn Counter(initial: i32) -> impl IntoView {
+				let (value, set_value) = create_signal(initial);
 				view! {
-					cx,
 					<div>
 						<button on:click=move |_| set_value.update(|value| *value -= 1)>"-1"</button>
 						<span>"Value: " {move || value().to_string()} "!"</span>
@@ -20,7 +19,6 @@ fn leptos_ssr_bench(b: &mut Bencher) {
 			}
 
 			let rendered = view! { 
-				cx,
 				<main>
 					<h1>"Welcome to our benchmark page."</h1>
 					<p>"Here's some introductory text."</p>
@@ -28,22 +26,61 @@ fn leptos_ssr_bench(b: &mut Bencher) {
 					<Counter initial=2/>
 					<Counter initial=3/>
 				</main>
-			}.into_view(cx).render_to_string(cx);
+			}.into_view().render_to_string();
 
 			assert_eq!(
 				rendered,
-				"<main><h1>Welcome to our benchmark page.</h1><p>Here's some introductory text.</p><div><button>-1</button><span>Value: <!>1<template id=\"_3\"></template>!</span><button>+1</button></div><template id=\"_1\"></template><div><button>-1</button><span>Value: <!>2<template id=\"_2\"></template>!</span><button>+1</button></div><template id=\"_0\"></template><div><button>-1</button><span>Value: <!>3<template id=\"_2\"></template>!</span><button>+1</button></div><template id=\"_0\"></template></main>"
-			);
-		});
+"<main data-hk=\"0-0-0-1\"><h1 data-hk=\"0-0-0-2\">Welcome to our benchmark page.</h1><p data-hk=\"0-0-0-3\">Here&#x27;s some introductory text.</p><div data-hk=\"0-0-0-5\"><button data-hk=\"0-0-0-6\">-1</button><span data-hk=\"0-0-0-7\">Value: <!>1<!--hk=0-0-0-8-->!</span><button data-hk=\"0-0-0-9\">+1</button></div><!--hk=0-0-0-4--><div data-hk=\"0-0-0-11\"><button data-hk=\"0-0-0-12\">-1</button><span data-hk=\"0-0-0-13\">Value: <!>2<!--hk=0-0-0-14-->!</span><button data-hk=\"0-0-0-15\">+1</button></div><!--hk=0-0-0-10--><div data-hk=\"0-0-0-17\"><button data-hk=\"0-0-0-18\">-1</button><span data-hk=\"0-0-0-19\">Value: <!>3<!--hk=0-0-0-20-->!</span><button data-hk=\"0-0-0-21\">+1</button></div><!--hk=0-0-0-16--></main>"			);
 	});
+	r.dispose();
 }
-/* 
+
+#[bench]
+fn tachys_ssr_bench(b: &mut Bencher) {
+	use leptos::{create_runtime, create_signal, SignalGet, SignalUpdate};
+	use tachy_maccy::view;
+	use tachydom::view::{Render, RenderHtml};
+	use tachydom::html::element::ElementChild;
+	use tachydom::html::attribute::global::ClassAttribute;
+	use tachydom::html::attribute::global::GlobalAttributes;
+	use tachydom::html::attribute::global::OnAttribute;
+	use tachydom::renderer::dom::Dom;
+	let rt = create_runtime();
+    b.iter(|| {
+		fn counter(initial: i32) -> impl Render<Dom> + RenderHtml<Dom> {
+			let (value, set_value) = create_signal(initial);
+			view! {
+				<div>
+					<button on:click=move |_| set_value.update(|value| *value -= 1)>"-1"</button>
+					<span>"Value: " {move || value().to_string()} "!"</span>
+					<button on:click=move |_| set_value.update(|value| *value += 1)>"+1"</button>
+				</div>
+			}
+		}
+
+		let rendered = view! { 
+			<main>
+				<h1>"Welcome to our benchmark page."</h1>
+				<p>"Here's some introductory text."</p>
+				{counter(1)}
+				{counter(2)}
+				{counter(3)}
+			</main>
+		}.to_html();
+		assert_eq!(
+			rendered,
+			"<main><h1>Welcome to our benchmark page.</h1><p>Here's some introductory text.</p><div><button>-1</button><span>Value: <!>1<!>!</span><button>+1</button></div><div><button>-1</button><span>Value: <!>2<!>!</span><button>+1</button></div><div><button>-1</button><span>Value: <!>3<!>!</span><button>+1</button></div></main>"
+		);
+	});
+	rt.dispose();
+}
+
 #[bench]
 fn tera_ssr_bench(b: &mut Bencher) {
-	use tera::*;
-	use serde::{Serialize, Deserialize};
+    use serde::{Deserialize, Serialize};
+    use tera::*;
 
-	static TEMPLATE: &str = r#"<main>
+    static TEMPLATE: &str = r#"<main>
 	<h1>Welcome to our benchmark page.</h1>
 	<p>Here's some introductory text.</p>
 	{% for counter in counters %}
@@ -55,37 +92,40 @@ fn tera_ssr_bench(b: &mut Bencher) {
 	{% endfor %}
 	</main>"#;
 
-	lazy_static::lazy_static! { 
-		static ref TERA: Tera = {
-			let mut tera = Tera::default();
-			tera.add_raw_templates(vec![("template.html", TEMPLATE)]).unwrap();
-			tera
-		};
-	}
+    lazy_static::lazy_static! {
+        static ref TERA: Tera = {
+            let mut tera = Tera::default();
+            tera.add_raw_templates(vec![("template.html", TEMPLATE)]).unwrap();
+            tera
+        };
+    }
 
-	#[derive(Serialize, Deserialize)]
-	struct Counter {
-		value: i32
-	}
+    #[derive(Serialize, Deserialize)]
+    struct Counter {
+        value: i32,
+    }
 
-	b.iter(|| {
-		let mut ctx = Context::new();
-		ctx.insert("counters", &vec![
-			Counter { value: 0 },
-			Counter { value: 1},
-			Counter { value: 2 }
-		]);
+    b.iter(|| {
+        let mut ctx = Context::new();
+        ctx.insert(
+            "counters",
+            &vec![
+                Counter { value: 0 },
+                Counter { value: 1 },
+                Counter { value: 2 },
+            ],
+        );
 
-		let _ = TERA.render("template.html", &ctx).unwrap();
-	});
+        let _ = TERA.render("template.html", &ctx).unwrap();
+    });
 }
 
 #[bench]
 fn sycamore_ssr_bench(b: &mut Bencher) {
-	use sycamore::*;
-	use sycamore::prelude::*;
+    use sycamore::prelude::*;
+    use sycamore::*;
 
-	b.iter(|| {
+    b.iter(|| {
 		_ = create_scope(|cx| {
 			#[derive(Prop)]
 			struct CounterProps {
@@ -139,10 +179,10 @@ fn sycamore_ssr_bench(b: &mut Bencher) {
 
 #[bench]
 fn yew_ssr_bench(b: &mut Bencher) {
-	use yew::prelude::*;
-	use yew::ServerRenderer;
+    use yew::prelude::*;
+    use yew::ServerRenderer;
 
-	b.iter(|| {
+    b.iter(|| {
 		#[derive(Properties, PartialEq, Eq, Debug)]
 		struct CounterProps {
 			initial: i32
@@ -194,4 +234,3 @@ fn yew_ssr_bench(b: &mut Bencher) {
 		});
 	});
 }
- */

benchmarks/src/todomvc/leptos.rs

@@ -1,5 +1,6 @@
 pub use leptos::*;
 use miniserde::*;
+use wasm_bindgen::JsCast;
 use web_sys::HtmlInputElement;
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -8,320 +9,331 @@ pub struct Todos(pub Vec<Todo>);
 const STORAGE_KEY: &str = "todos-leptos";
 
 impl Todos {
-  pub fn new(cx: Scope) -> Self {
-    Self(vec![])
-  }
+    pub fn new() -> Self {
+        Self(vec![])
+    }
 
-  pub fn new_with_1000(cx: Scope) -> Self {
-    let todos = (0..1000)
-      .map(|id| Todo::new(cx, id, format!("Todo #{id}")))
-      .collect();
-    Self(todos)
-  }
+    pub fn new_with_1000() -> Self {
+        let todos = (0..1000)
+            .map(|id| Todo::new(id, format!("Todo #{id}")))
+            .collect();
+        Self(todos)
+    }
 
-  pub fn is_empty(&self) -> bool {
-    self.0.is_empty()
-  }
+    pub fn is_empty(&self) -> bool {
+        self.0.is_empty()
+    }
 
-  pub fn add(&mut self, todo: Todo) {
-    self.0.push(todo);
-  }
+    pub fn add(&mut self, todo: Todo) {
+        self.0.push(todo);
+    }
 
-  pub fn remove(&mut self, id: usize) {
-    self.0.retain(|todo| todo.id != id);
-  }
+    pub fn remove(&mut self, id: usize) {
+        self.0.retain(|todo| todo.id != id);
+    }
 
-  pub fn remaining(&self) -> usize {
-    self.0.iter().filter(|todo| !(todo.completed)()).count()
-  }
+    pub fn remaining(&self) -> usize {
+        self.0.iter().filter(|todo| !(todo.completed)()).count()
+    }
 
-  pub fn completed(&self) -> usize {
-    self.0.iter().filter(|todo| (todo.completed)()).count()
-  }
+    pub fn completed(&self) -> usize {
+        self.0.iter().filter(|todo| (todo.completed)()).count()
+    }
 
-  pub fn toggle_all(&self) {
-    // if all are complete, mark them all active instead
-    if self.remaining() == 0 {
-      for todo in &self.0 {
-        if todo.completed.get() {
-          (todo.set_completed)(false);
+    pub fn toggle_all(&self) {
+        // if all are complete, mark them all active instead
+        if self.remaining() == 0 {
+            for todo in &self.0 {
+                if todo.completed.get() {
+                    (todo.set_completed)(false);
+                }
+            }
+        }
+        // otherwise, mark them all complete
+        else {
+            for todo in &self.0 {
+                (todo.set_completed)(true);
+            }
         }
-      }
     }
-    // otherwise, mark them all complete
-    else {
-      for todo in &self.0 {
-        (todo.set_completed)(true);
-      }
-    }
-  }
 
-  fn clear_completed(&mut self) {
-    self.0.retain(|todo| !todo.completed.get());
-  }
+    fn clear_completed(&mut self) {
+        self.0.retain(|todo| !todo.completed.get());
+    }
 }
 
 #[derive(Debug, PartialEq, Eq, Clone)]
 pub struct Todo {
-  pub id: usize,
-  pub title: ReadSignal<String>,
-  pub set_title: WriteSignal<String>,
-  pub completed: ReadSignal<bool>,
-  pub set_completed: WriteSignal<bool>,
+    pub id: usize,
+    pub title: ReadSignal<String>,
+    pub set_title: WriteSignal<String>,
+    pub completed: ReadSignal<bool>,
+    pub set_completed: WriteSignal<bool>,
 }
 
 impl Todo {
-  pub fn new(cx: Scope, id: usize, title: String) -> Self {
-    Self::new_with_completed(cx, id, title, false)
-  }
-
-  pub fn new_with_completed(
-    cx: Scope,
-    id: usize,
-    title: String,
-    completed: bool,
-  ) -> Self {
-    let (title, set_title) = create_signal(cx, title);
-    let (completed, set_completed) = create_signal(cx, completed);
-    Self {
-      id,
-      title,
-      set_title,
-      completed,
-      set_completed,
+    pub fn new(id: usize, title: String) -> Self {
+        Self::new_with_completed(id, title, false)
     }
-  }
 
-  pub fn toggle(&self) {
-    self
-      .set_completed
-      .update(|completed| *completed = !*completed);
-  }
+    pub fn new_with_completed(
+        id: usize,
+        title: String,
+        completed: bool,
+    ) -> Self {
+        let (title, set_title) = create_signal(title);
+        let (completed, set_completed) = create_signal(completed);
+        Self {
+            id,
+            title,
+            set_title,
+            completed,
+            set_completed,
+        }
+    }
+
+    pub fn toggle(&self) {
+        self.set_completed
+            .update(|completed| *completed = !*completed);
+    }
 }
 
 const ESCAPE_KEY: u32 = 27;
 const ENTER_KEY: u32 = 13;
 
 #[component]
-pub fn TodoMVC(cx: Scope,todos: Todos) -> impl IntoView {
-  let mut next_id = todos
-    .0
-    .iter()
-    .map(|todo| todo.id)
-    .max()
-    .map(|last| last + 1)
-    .unwrap_or(0);
-
-  let (todos, set_todos) = create_signal(cx, todos);
-  provide_context(cx, set_todos);
-
-  let (mode, set_mode) = create_signal(cx, Mode::All);
-  window_event_listener("hashchange", move |_| {
-    let new_mode = location_hash().map(|hash| route(&hash)).unwrap_or_default();
-    set_mode(new_mode);
-  });
-
-  let add_todo = move |ev: web_sys::KeyboardEvent| {
-    let target = event_target::<HtmlInputElement>(&ev);
-    ev.stop_propagation();
-    let key_code = ev.unchecked_ref::<web_sys::KeyboardEvent>().key_code();
-    if key_code == ENTER_KEY {
-      let title = event_target_value(&ev);
-      let title = title.trim();
-      if !title.is_empty() {
-        let new = Todo::new(cx, next_id, title.to_string());
-        set_todos.update(|t| t.add(new));
-        next_id += 1;
-        target.set_value("");
-      }
-    }
-  };
-
-  let filtered_todos = create_memo::<Vec<Todo>>(cx, move |_| {
-    todos.with(|todos| match mode.get() {
-      Mode::All => todos.0.to_vec(),
-      Mode::Active => todos
+pub fn TodoMVC(todos: Todos) -> impl IntoView {
+    let mut next_id = todos
         .0
         .iter()
-        .filter(|todo| !todo.completed.get())
-        .cloned()
-        .collect(),
-      Mode::Completed => todos
-        .0
-        .iter()
-        .filter(|todo| todo.completed.get())
-        .cloned()
-        .collect(),
-    })
-  });
+        .map(|todo| todo.id)
+        .max()
+        .map(|last| last + 1)
+        .unwrap_or(0);
 
-  // effect to serialize to JSON
-  // this does reactive reads, so it will automatically serialize on any relevant change
-  create_effect(cx, move |_| {
-    if let Ok(Some(storage)) = window().local_storage() {
-      let objs = todos
-        .get()
-        .0
-        .iter()
-        .map(TodoSerialized::from)
-        .collect::<Vec<_>>();
-      let json = json::to_string(&objs);
-      if storage.set_item(STORAGE_KEY, &json).is_err() {
-        log::error!("error while trying to set item in localStorage");
-      }
-    }
-  });
+    let (todos, set_todos) = create_signal(todos);
+    provide_context(set_todos);
 
-  view! { cx,
-      <main>
-          <section class="todoapp">
-              <header class="header">
-                  <h1>"todos"</h1>
-                  <input class="new-todo" placeholder="What needs to be done?" autofocus="" on:keydown=add_todo />
-              </header>
-              <section class="main" class:hidden={move || todos.with(|t| t.is_empty())}>
-                  <input id="toggle-all" class="toggle-all" type="checkbox"
-                      prop:checked={move || todos.with(|t| t.remaining() > 0)}
-                      on:input=move |_| set_todos.update(|t| t.toggle_all())
-                  />
-                  <label for="toggle-all">"Mark all as complete"</label>
-                  <ul class="todo-list">
-                      <For
-                        each=filtered_todos
-                        key=|todo| todo.id
-                        view=move |todo: Todo| view! { cx,  <Todo todo=todo.clone() /> }
-                      />
-                  </ul>
-              </section>
-              <footer class="footer" class:hidden={move || todos.with(|t| t.is_empty())}>
-                  <span class="todo-count">
-                      <strong>{move || todos.with(|t| t.remaining().to_string())}</strong>
-                      {move || if todos.with(|t| t.remaining()) == 1 {
-                          " item"
-                      } else {
-                          " items"
-                      }}
-                      " left"
-                  </span>
-                  <ul class="filters">
-                      <li><a href="#/" class="selected" class:selected={move || mode() == Mode::All}>"All"</a></li>
-                      <li><a href="#/active" class:selected={move || mode() == Mode::Active}>"Active"</a></li>
-                      <li><a href="#/completed" class:selected={move || mode() == Mode::Completed}>"Completed"</a></li>
-                  </ul>
-                  <button
-                      class="clear-completed hidden"
-                      class:hidden={move || todos.with(|t| t.completed() == 0)}
-                      on:click=move |_| set_todos.update(|t| t.clear_completed())
-                  >
-                      "Clear completed"
-                  </button>
-              </footer>
-          </section>
-          <footer class="info">
-              <p>"Double-click to edit a todo"</p>
-              <p>"Created by "<a href="http://todomvc.com">"Greg Johnston"</a></p>
-              <p>"Part of "<a href="http://todomvc.com">"TodoMVC"</a></p>
-          </footer>
-      </main>
-  }.into_view(cx)
+    let (mode, set_mode) = create_signal(Mode::All);
+
+    let add_todo = move |ev: web_sys::KeyboardEvent| {
+        let target = event_target::<HtmlInputElement>(&ev);
+        ev.stop_propagation();
+        let key_code = ev.unchecked_ref::<web_sys::KeyboardEvent>().key_code();
+        if key_code == ENTER_KEY {
+            let title = event_target_value(&ev);
+            let title = title.trim();
+            if !title.is_empty() {
+                let new = Todo::new(next_id, title.to_string());
+                set_todos.update(|t| t.add(new));
+                next_id += 1;
+                target.set_value("");
+            }
+        }
+    };
+
+    let filtered_todos = create_memo::<Vec<Todo>>(move |_| {
+        todos.with(|todos| match mode.get() {
+            Mode::All => todos.0.to_vec(),
+            Mode::Active => todos
+                .0
+                .iter()
+                .filter(|todo| !todo.completed.get())
+                .cloned()
+                .collect(),
+            Mode::Completed => todos
+                .0
+                .iter()
+                .filter(|todo| todo.completed.get())
+                .cloned()
+                .collect(),
+        })
+    });
+
+    // effect to serialize to JSON
+    // this does reactive reads, so it will automatically serialize on any relevant change
+    create_effect(move |_| {
+        if let Ok(Some(storage)) = window().local_storage() {
+            let objs = todos
+                .get()
+                .0
+                .iter()
+                .map(TodoSerialized::from)
+                .collect::<Vec<_>>();
+            let json = json::to_string(&objs);
+            if storage.set_item(STORAGE_KEY, &json).is_err() {
+                log::error!("error while trying to set item in localStorage");
+            }
+        }
+    });
+
+    view! { 
+        <main>
+            <section class="todoapp">
+                <header class="header">
+                    <h1>"todos"</h1>
+                    <input
+                        class="new-todo"
+                        placeholder="What needs to be done?"
+                        autofocus=""
+                        on:keydown=add_todo
+                    />
+                </header>
+                <section class="main" class:hidden=move || todos.with(|t| t.is_empty())>
+                    <input
+                        id="toggle-all"
+                        class="toggle-all"
+                        type="checkbox"
+                        prop:checked=move || todos.with(|t| t.remaining() > 0)
+                        on:input=move |_| set_todos.update(|t| t.toggle_all())
+                    />
+                    <label for="toggle-all">"Mark all as complete"</label>
+                    <ul class="todo-list">
+                        <For
+                            each=filtered_todos
+                            key=|todo| todo.id
+                            children=move |todo: Todo| {
+                                view! { <Todo todo=todo.clone()/> }
+                            }
+                        />
+                    </ul>
+                </section>
+                <footer class="footer" class:hidden=move || todos.with(|t| t.is_empty())>
+                    <span class="todo-count">
+                        <strong>{move || todos.with(|t| t.remaining().to_string())}</strong>
+                        {move || if todos.with(|t| t.remaining()) == 1 { " item" } else { " items" }}
+                        " left"
+                    </span>
+                    <ul class="filters">
+                        <li>
+                            <a
+                                href="#/"
+                                class="selected"
+                                class:selected=move || mode() == Mode::All
+                            >
+                                "All"
+                            </a>
+                        </li>
+                        <li>
+                            <a href="#/active" class:selected=move || mode() == Mode::Active>
+                                "Active"
+                            </a>
+                        </li>
+                        <li>
+                            <a href="#/completed" class:selected=move || mode() == Mode::Completed>
+                                "Completed"
+                            </a>
+                        </li>
+                    </ul>
+                    <button
+                        class="clear-completed hidden"
+                        class:hidden=move || todos.with(|t| t.completed() == 0)
+                        on:click=move |_| set_todos.update(|t| t.clear_completed())
+                    >
+                        "Clear completed"
+                    </button>
+                </footer>
+            </section>
+            <footer class="info">
+                <p>"Double-click to edit a todo"</p>
+                <p>"Created by " <a href="http://todomvc.com">"Greg Johnston"</a></p>
+                <p>"Part of " <a href="http://todomvc.com">"TodoMVC"</a></p>
+            </footer>
+        </main>
+    }.into_view()
 }
 
 #[component]
-pub fn Todo(cx: Scope, todo: Todo) -> impl IntoView {
-  let (editing, set_editing) = create_signal(cx, false);
-  let set_todos = use_context::<WriteSignal<Todos>>(cx).unwrap();
-  //let input = NodeRef::new(cx);
+pub fn Todo(todo: Todo) -> impl IntoView {
+    let (editing, set_editing) = create_signal(false);
+    let set_todos = use_context::<WriteSignal<Todos>>().unwrap();
+    //let input = NodeRef::new();
 
-  let save = move |value: &str| {
-    let value = value.trim();
-    if value.is_empty() {
-      set_todos.update(|t| t.remove(todo.id));
-    } else {
-      (todo.set_title)(value.to_string());
+    let save = move |value: &str| {
+        let value = value.trim();
+        if value.is_empty() {
+            set_todos.update(|t| t.remove(todo.id));
+        } else {
+            (todo.set_title)(value.to_string());
+        }
+        set_editing(false);
+    };
+
+    view! { 
+        <li class="todo" class:editing=editing class:completed=move || (todo.completed)()>
+            <div class="view">
+                <input class="toggle" type="checkbox" prop:checked=move || (todo.completed)()/>
+                <label on:dblclick=move |_| set_editing(true)>{move || todo.title.get()}</label>
+                <button
+                    class="destroy"
+                    on:click=move |_| set_todos.update(|t| t.remove(todo.id))
+                ></button>
+            </div>
+            {move || {
+                editing()
+                    .then(|| {
+                        view! { 
+                            <input
+                                class="edit"
+                                class:hidden=move || !(editing)()
+                                prop:value=move || todo.title.get()
+                                on:focusout=move |ev| save(&event_target_value(&ev))
+                                on:keyup=move |ev| {
+                                    let key_code = ev.unchecked_ref::<web_sys::KeyboardEvent>().key_code();
+                                    if key_code == ENTER_KEY {
+                                        save(&event_target_value(&ev));
+                                    } else if key_code == ESCAPE_KEY {
+                                        set_editing(false);
+                                    }
+                                }
+                            />
+                        }
+                    })
+            }}
+        </li>
     }
-    set_editing(false);
-  };
-
-  view! { cx,
-      <li
-          class="todo"
-          class:editing={editing}
-          class:completed={move || (todo.completed)()}
-          //_ref=input
-      >
-          <div class="view">
-              <input
-                  class="toggle"
-                  type="checkbox"
-                  prop:checked={move || (todo.completed)()}
-
-              />
-              <label on:dblclick=move |_| set_editing(true)>
-                  {move || todo.title.get()}
-              </label>
-              <button class="destroy" on:click=move |_| set_todos.update(|t| t.remove(todo.id))/>
-          </div>
-          {move || editing().then(|| view! { cx,
-              <input
-                  class="edit"
-                  class:hidden={move || !(editing)()}
-                  prop:value={move || todo.title.get()}
-                  on:focusout=move |ev| save(&event_target_value(&ev))
-                  on:keyup={move |ev| {
-                      let key_code = ev.unchecked_ref::<web_sys::KeyboardEvent>().key_code();
-                      if key_code == ENTER_KEY {
-                          save(&event_target_value(&ev));
-                      } else if key_code == ESCAPE_KEY {
-                          set_editing(false);
-                      }
-                  }}
-              />
-          })
-      }
-      </li>
-  }
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Mode {
-  Active,
-  Completed,
-  All,
+    Active,
+    Completed,
+    All,
 }
 
 impl Default for Mode {
-  fn default() -> Self {
-    Mode::All
-  }
+    fn default() -> Self {
+        Mode::All
+    }
 }
 
 pub fn route(hash: &str) -> Mode {
-  match hash {
-    "/active" => Mode::Active,
-    "/completed" => Mode::Completed,
-    _ => Mode::All,
-  }
+    match hash {
+        "/active" => Mode::Active,
+        "/completed" => Mode::Completed,
+        _ => Mode::All,
+    }
 }
 
 #[derive(Serialize, Deserialize)]
 pub struct TodoSerialized {
-  pub id: usize,
-  pub title: String,
-  pub completed: bool,
+    pub id: usize,
+    pub title: String,
+    pub completed: bool,
 }
 
 impl TodoSerialized {
-  pub fn into_todo(self, cx: Scope) -> Todo {
-    Todo::new_with_completed(cx, self.id, self.title, self.completed)
-  }
+    pub fn into_todo(self, ) -> Todo {
+        Todo::new_with_completed(self.id, self.title, self.completed)
+    }
 }
 
 impl From<&Todo> for TodoSerialized {
-  fn from(todo: &Todo) -> Self {
-    Self {
-      id: todo.id,
-      title: todo.title.get(),
-      completed: (todo.completed)(),
+    fn from(todo: &Todo) -> Self {
+        Self {
+            id: todo.id,
+            title: todo.title.get(),
+            completed: (todo.completed)(),
+        }
     }
-  }
 }

benchmarks/src/todomvc/mod.rs

@@ -2,30 +2,45 @@ use test::Bencher;
 
 mod leptos;
 mod sycamore;
+mod tachys;
 mod tera;
 mod yew;
 
 #[bench]
 fn leptos_todomvc_ssr(b: &mut Bencher) {
+    use ::leptos::*;
+    let runtime = create_runtime();
     b.iter(|| {
         use crate::todomvc::leptos::*;
 
-        _ = create_scope(create_runtime(), |cx| {
-            let rendered = view! {
-                cx,
-                <TodoMVC todos=Todos::new(cx)/>
-            }.into_view(cx).render_to_string(cx);
-
-            assert!(rendered.len() > 1);
+        let html = ::leptos::ssr::render_to_string(|| {
+            view! { <TodoMVC todos=Todos::new()/> }
         });
+        assert!(html.len() > 1);
     });
+    runtime.dispose();
+}
+
+#[bench]
+fn tachys_todomvc_ssr(b: &mut Bencher) {
+    use ::leptos::*;
+    let runtime = create_runtime();
+    b.iter(|| {
+        use crate::todomvc::tachys::*;
+        use tachydom::view::{Render, RenderHtml};
+
+        let rendered = TodoMVC(Todos::new()).to_html();
+        assert_eq!(
+            rendered,
+"<main><section class=\"todoapp\"><header class=\"header\"><h1>todos</h1><input placeholder=\"What needs to be done?\" autofocus class=\"new-todo\"></header><section class=\"main hidden\"><input id=\"toggle-all\" type=\"checkbox\" class=\"toggle-all\"><label for=\"toggle-all\">Mark all as complete</label><ul class=\"todo-list\"></ul></section><footer class=\"footer hidden\"><span class=\"todo-count\"><strong>0</strong><!> items<!> left</span><ul class=\"filters\"><li><a href=\"#/\" class=\"selected selected\">All</a></li><li><a href=\"#/active\" class=\"\">Active</a></li><li><a href=\"#/completed\" class=\"\">Completed</a></li></ul><button class=\"clear-completed hidden hidden\">Clear completed</button></footer></section><footer class=\"info\"><p>Double-click to edit a todo</p><p>Created by <a href=\"http://todomvc.com\">Greg Johnston</a></p><p>Part of <a href=\"http://todomvc.com\">TodoMVC</a></p></footer></main>"        );
+    });
+    runtime.dispose();
 }
 
 #[bench]
 fn sycamore_todomvc_ssr(b: &mut Bencher) {
     use self::sycamore::*;
-    use ::sycamore::prelude::*;
-    use ::sycamore::*;
+    use ::sycamore::{prelude::*, *};
 
     b.iter(|| {
         _ = create_scope(|cx| {
@@ -44,8 +59,7 @@ fn sycamore_todomvc_ssr(b: &mut Bencher) {
 #[bench]
 fn yew_todomvc_ssr(b: &mut Bencher) {
     use self::yew::*;
-    use ::yew::prelude::*;
-    use ::yew::ServerRenderer;
+    use ::yew::{prelude::*, ServerRenderer};
 
     b.iter(|| {
         tokio_test::block_on(async {
@@ -62,22 +76,33 @@ fn leptos_todomvc_ssr_with_1000(b: &mut Bencher) {
         use self::leptos::*;
         use ::leptos::*;
 
-        _ = create_scope(create_runtime(), |cx| {
-            let rendered = view! {
-                cx,
-                <TodoMVC todos=Todos::new_with_1000(cx)/>
-            }.into_view(cx).render_to_string(cx);
-
-            assert!(rendered.len() > 1);
+        let html = ::leptos::ssr::render_to_string(|| {
+            view! {
+                <TodoMVC todos=Todos::new_with_1000()/>
+            }
         });
+        assert!(html.len() > 1);
     });
 }
 
+#[bench]
+fn tachys_todomvc_ssr_with_1000(b: &mut Bencher) {
+    use ::leptos::*;
+    let runtime = create_runtime();
+    b.iter(|| {
+        use crate::todomvc::tachys::*;
+        use tachydom::view::{Render, RenderHtml};
+
+        let rendered = TodoMVC(Todos::new_with_1000()).to_html();
+        assert!(rendered.len() > 20_000)
+    });
+    runtime.dispose();
+}
+
 #[bench]
 fn sycamore_todomvc_ssr_with_1000(b: &mut Bencher) {
     use self::sycamore::*;
-    use ::sycamore::prelude::*;
-    use ::sycamore::*;
+    use ::sycamore::{prelude::*, *};
 
     b.iter(|| {
         _ = create_scope(|cx| {
@@ -96,8 +121,7 @@ fn sycamore_todomvc_ssr_with_1000(b: &mut Bencher) {
 #[bench]
 fn yew_todomvc_ssr_with_1000(b: &mut Bencher) {
     use self::yew::*;
-    use ::yew::prelude::*;
-    use ::yew::ServerRenderer;
+    use ::yew::{prelude::*, ServerRenderer};
 
     b.iter(|| {
         tokio_test::block_on(async {
@@ -107,3 +131,18 @@ fn yew_todomvc_ssr_with_1000(b: &mut Bencher) {
         });
     });
 }
+
+#[bench]
+fn tera_todomvc_ssr(b: &mut Bencher) {
+    use ::leptos::*;
+    let runtime = create_runtime();
+    b.iter(|| {
+        use crate::todomvc::leptos::*;
+
+        let html = ::leptos::ssr::render_to_string(|| {
+            view! { <TodoMVC todos=Todos::new()/> }
+        });
+        assert!(html.len() > 1);
+    });
+    runtime.dispose();
+}

benchmarks/src/todomvc/tachys.rs

@@ -0,0 +1,333 @@
+pub use leptos_reactive::*;
+use miniserde::*;
+use tachy_maccy::view;
+use tachydom::{
+    html::{
+        attribute::global::{ClassAttribute, GlobalAttributes, OnAttribute},
+        element::ElementChild,
+    },
+    renderer::dom::Dom,
+    view::{keyed::keyed, Render, RenderHtml},
+};
+use wasm_bindgen::JsCast;
+use web_sys::HtmlInputElement;
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Todos(pub Vec<Todo>);
+
+const STORAGE_KEY: &str = "todos-leptos";
+
+impl Todos {
+    pub fn new() -> Self {
+        Self(vec![])
+    }
+
+    pub fn new_with_1000() -> Self {
+        let todos = (0..1000)
+            .map(|id| Todo::new(id, format!("Todo #{id}")))
+            .collect();
+        Self(todos)
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.0.is_empty()
+    }
+
+    pub fn add(&mut self, todo: Todo) {
+        self.0.push(todo);
+    }
+
+    pub fn remove(&mut self, id: usize) {
+        self.0.retain(|todo| todo.id != id);
+    }
+
+    pub fn remaining(&self) -> usize {
+        self.0.iter().filter(|todo| !(todo.completed)()).count()
+    }
+
+    pub fn completed(&self) -> usize {
+        self.0.iter().filter(|todo| (todo.completed)()).count()
+    }
+
+    pub fn toggle_all(&self) {
+        // if all are complete, mark them all active instead
+        if self.remaining() == 0 {
+            for todo in &self.0 {
+                if todo.completed.get() {
+                    (todo.set_completed)(false);
+                }
+            }
+        }
+        // otherwise, mark them all complete
+        else {
+            for todo in &self.0 {
+                (todo.set_completed)(true);
+            }
+        }
+    }
+
+    fn clear_completed(&mut self) {
+        self.0.retain(|todo| !todo.completed.get());
+    }
+}
+
+#[derive(Debug, PartialEq, Eq, Clone)]
+pub struct Todo {
+    pub id: usize,
+    pub title: ReadSignal<String>,
+    pub set_title: WriteSignal<String>,
+    pub completed: ReadSignal<bool>,
+    pub set_completed: WriteSignal<bool>,
+}
+
+impl Todo {
+    pub fn new(id: usize, title: String) -> Self {
+        Self::new_with_completed(id, title, false)
+    }
+
+    pub fn new_with_completed(
+        id: usize,
+        title: String,
+        completed: bool,
+    ) -> Self {
+        let (title, set_title) = create_signal(title);
+        let (completed, set_completed) = create_signal(completed);
+        Self {
+            id,
+            title,
+            set_title,
+            completed,
+            set_completed,
+        }
+    }
+
+    pub fn toggle(&self) {
+        self.set_completed
+            .update(|completed| *completed = !*completed);
+    }
+}
+
+const ESCAPE_KEY: u32 = 27;
+const ENTER_KEY: u32 = 13;
+
+pub fn TodoMVC(todos: Todos) -> impl Render<Dom> + RenderHtml<Dom> {
+    let mut next_id = todos
+        .0
+        .iter()
+        .map(|todo| todo.id)
+        .max()
+        .map(|last| last + 1)
+        .unwrap_or(0);
+
+    let (todos, set_todos) = create_signal(todos);
+    provide_context(set_todos);
+
+    let (mode, set_mode) = create_signal(Mode::All);
+
+    let add_todo = move |ev: web_sys::KeyboardEvent| {
+        todo!()
+        /* let target = event_target::<HtmlInputElement>(&ev);
+        ev.stop_propagation();
+        let key_code = ev.unchecked_ref::<web_sys::KeyboardEvent>().key_code();
+        if key_code == ENTER_KEY {
+            let title = event_target_value(&ev);
+            let title = title.trim();
+            if !title.is_empty() {
+                let new = Todo::new(next_id, title.to_string());
+                set_todos.update(|t| t.add(new));
+                next_id += 1;
+                target.set_value("");
+            }
+        } */
+    };
+
+    let filtered_todos = create_memo::<Vec<Todo>>(move |_| {
+        todos.with(|todos| match mode.get() {
+            Mode::All => todos.0.to_vec(),
+            Mode::Active => todos
+                .0
+                .iter()
+                .filter(|todo| !todo.completed.get())
+                .cloned()
+                .collect(),
+            Mode::Completed => todos
+                .0
+                .iter()
+                .filter(|todo| todo.completed.get())
+                .cloned()
+                .collect(),
+        })
+    });
+
+    // effect to serialize to JSON
+    // this does reactive reads, so it will automatically serialize on any relevant change
+    create_effect(move |_| {
+        ()
+        /* if let Ok(Some(storage)) = window().local_storage() {
+            let objs = todos
+                .get()
+                .0
+                .iter()
+                .map(TodoSerialized::from)
+                .collect::<Vec<_>>();
+            let json = json::to_string(&objs);
+            if storage.set_item(STORAGE_KEY, &json).is_err() {
+                log::error!("error while trying to set item in localStorage");
+            }
+        } */
+    });
+
+    view! {
+        <main>
+            <section class="todoapp">
+                <header class="header">
+                    <h1>"todos"</h1>
+                    <input
+                        class="new-todo"
+                        placeholder="What needs to be done?"
+                        autofocus
+                    />
+                </header>
+                <section class="main" class:hidden=move || todos.with(|t| t.is_empty())>
+                    <input
+                        id="toggle-all"
+                        class="toggle-all"
+                        r#type="checkbox"
+                        //prop:checked=move || todos.with(|t| t.remaining() > 0)
+                        on:input=move |_| set_todos.update(|t| t.toggle_all())
+                    />
+                    <label r#for="toggle-all">"Mark all as complete"</label>
+                    <ul class="todo-list">
+                        {move || {
+                            keyed(filtered_todos.get(), |todo| todo.id, Todo)
+                        }}
+                    </ul>
+                </section>
+                <footer class="footer" class:hidden=move || todos.with(|t| t.is_empty())>
+                    <span class="todo-count">
+                        <strong>{move || todos.with(|t| t.remaining().to_string())}</strong>
+                        {move || if todos.with(|t| t.remaining()) == 1 { " item" } else { " items" }}
+                        " left"
+                    </span>
+                    <ul class="filters">
+                        <li>
+                            <a
+                                href="#/"
+                                class="selected"
+                                class:selected=move || mode() == Mode::All
+                            >
+                                "All"
+                            </a>
+                        </li>
+                        <li>
+                            <a href="#/active" class:selected=move || mode() == Mode::Active>
+                                "Active"
+                            </a>
+                        </li>
+                        <li>
+                            <a href="#/completed" class:selected=move || mode() == Mode::Completed>
+                                "Completed"
+                            </a>
+                        </li>
+                    </ul>
+                    <button
+                        class="clear-completed hidden"
+                        class:hidden=move || todos.with(|t| t.completed() == 0)
+                        on:click=move |_| set_todos.update(|t| t.clear_completed())
+                    >
+                        "Clear completed"
+                    </button>
+                </footer>
+            </section>
+            <footer class="info">
+                <p>"Double-click to edit a todo"</p>
+                <p>"Created by " <a href="http://todomvc.com">"Greg Johnston"</a></p>
+                <p>"Part of " <a href="http://todomvc.com">"TodoMVC"</a></p>
+            </footer>
+        </main>
+    }
+}
+
+pub fn Todo(todo: Todo) -> impl Render<Dom> + RenderHtml<Dom> {
+    let (editing, set_editing) = create_signal(false);
+    let set_todos = use_context::<WriteSignal<Todos>>().unwrap();
+    //let input = NodeRef::new();
+
+    let save = move |value: &str| {
+        let value = value.trim();
+        if value.is_empty() {
+            set_todos.update(|t| t.remove(todo.id));
+        } else {
+            (todo.set_title)(value.to_string());
+        }
+        set_editing(false);
+    };
+
+    view! {
+        <li class="todo" class:editing=editing class:completed=move || (todo.completed)()>
+            /* <div class="view">
+                <input class="toggle" r#type="checkbox"/>
+                <label on:dblclick=move |_| set_editing(true)>{move || todo.title.get()}</label>
+                <button
+                    class="destroy"
+                    on:click=move |_| set_todos.update(|t| t.remove(todo.id))
+                ></button>
+            </div>
+            {move || {
+                editing()
+                    .then(|| {
+                        view! {
+                            <input
+                                class="edit"
+                                class:hidden=move || !(editing)()
+                            />
+                        }
+                    })
+            }} */
+        </li>
+    }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Mode {
+    Active,
+    Completed,
+    All,
+}
+
+impl Default for Mode {
+    fn default() -> Self {
+        Mode::All
+    }
+}
+
+pub fn route(hash: &str) -> Mode {
+    match hash {
+        "/active" => Mode::Active,
+        "/completed" => Mode::Completed,
+        _ => Mode::All,
+    }
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct TodoSerialized {
+    pub id: usize,
+    pub title: String,
+    pub completed: bool,
+}
+
+impl TodoSerialized {
+    pub fn into_todo(self) -> Todo {
+        Todo::new_with_completed(self.id, self.title, self.completed)
+    }
+}
+
+impl From<&Todo> for TodoSerialized {
+    fn from(todo: &Todo) -> Self {
+        Self {
+            id: todo.id,
+            title: todo.title.get(),
+            completed: (todo.completed)(),
+        }
+    }
+}

benchmarks/src/todomvc/tera.rs

@@ -87,7 +87,7 @@ static TEMPLATE: &str = r#"<main>
         </main>"#;
 
 #[bench]
-fn tera_todomvc(b: &mut Bencher) {
+fn tera_todomvc_ssr(b: &mut Bencher) {
     use serde::{Deserialize, Serialize};
     use tera::*;
 
@@ -127,7 +127,7 @@ fn tera_todomvc(b: &mut Bencher) {
 }
 
 #[bench]
-fn tera_todomvc_1000(b: &mut Bencher) {
+fn tera_todomvc_ssr_1000(b: &mut Bencher) {
     use serde::{Deserialize, Serialize};
     use tera::*;
 

cargo-make/check.toml

@@ -0,0 +1,7 @@
+[tasks.check]
+alias = "check-all"
+
+[tasks.check-all]
+command = "cargo"
+args = ["+nightly", "check-all-features"]
+install_crate = "cargo-all-features"

cargo-make/lint.toml

@@ -0,0 +1,11 @@
+[tasks.lint]
+dependencies = ["check-format-flow", "clippy-each-feature"]
+
+[tasks.check-format]
+env = { LEPTOS_PROJECT_DIRECTORY = "../" }
+args = ["fmt", "--", "--check", "--config-path", "${LEPTOS_PROJECT_DIRECTORY}"]
+
+[tasks.clippy-each-feature]
+dependencies = ["install-clippy"]
+command = "cargo"
+args = ["hack", "clippy", "--all", "--each-feature", "--no-dev-deps"]

cargo-make/main.toml

@@ -0,0 +1,15 @@
+extend = [
+    { path = "./check.toml" },
+    { path = "./lint.toml" },
+    { path = "./test.toml" },
+]
+
+[env]
+RUSTFLAGS = ""
+LEPTOS_OUTPUT_NAME = "ci" # allows examples to check/build without cargo-leptos
+
+[env.github-actions]
+RUSTFLAGS = "-D warnings"
+
+[tasks.ci]
+dependencies = ["lint", "test"]

cargo-make/test.toml

@@ -0,0 +1,7 @@
+[tasks.test]
+alias = "test-all"
+
+[tasks.test-all]
+command = "cargo"
+args = ["+nightly", "test-all-features"]
+install_crate = "cargo-all-features"

docs/COMMON_BUGS.md

@@ -9,10 +9,10 @@ This document is intended as a running list of common issues, with example code
 **Issue**: Sometimes you want to update a reactive signal in a way that depends on another signal.
 
 ```rust
-let (a, set_a) = create_signal(cx, 0);
-let (b, set_b) = create_signal(cx, false);
+let (a, set_a) = create_signal(0);
+let (b, set_b) = create_signal(false);
 
-create_effect(cx, move |_| {
+create_effect(move |_| {
 	if a() > 5 {
 		set_b(true);
 	}
@@ -24,10 +24,56 @@ This creates an inefficient chain of updates, and can easily lead to infinite lo
 **Solution**: Follow the rule, _What can be derived, should be derived._ In this case, this has the benefit of massively reducing the code size, too!
 
 ```rust
-let (a, set_a) = create_signal(cx, 0);
+let (a, set_a) = create_signal(0);
 let b = move || a () > 5;
 ```
 
+### Nested signal updates/reads triggering panic
+
+Sometimes you have nested signals: for example, hash-map that can change over time, each of whose values can also change over time:
+
+```rust
+#[component]
+pub fn App() -> impl IntoView {
+    let resources = create_rw_signal(HashMap::new());
+
+    let update = move |id: usize| {
+        resources.update(|resources| {
+            resources
+                .entry(id)
+                .or_insert_with(|| create_rw_signal(0))
+                .update(|amount| *amount += 1)
+        })
+    };
+
+    view! {
+        <div>
+            <pre>{move || format!("{:#?}", resources.get().into_iter().map(|(id, resource)| (id, resource.get())).collect::<Vec<_>>())}</pre>
+            <button on:click=move |_| update(1)>"+"</button>
+        </div>
+    }
+}
+```
+
+Clicking the button twice will cause a panic, because of the nested signal _read_. Calling the `update` function on `resources` immediately takes out a mutable borrow on `resources`, then updates the `resource` signal—which re-runs the effect that reads from the signals, which tries to immutably access `resources` and panics. It's the nested update here which causes a problem, because the inner update triggers and effect that tries to read both signals while the outer is still updating.
+
+You can fix this fairly easily by using the [`batch()`](https://docs.rs/leptos/latest/leptos/fn.batch.html) method:
+
+```rust
+    let update = move |id: usize| {
+        batch(move || {
+            resources.update(|resources| {
+                resources
+                    .entry(id)
+                    .or_insert_with(|| create_rw_signal(0))
+                    .update(|amount| *amount += 1)
+            })
+        });
+    };
+```
+
+This delays running any effects until after both updates are made, preventing the conflict entirely without requiring any other restructuring.
+
 ## Templates and the DOM
 
 ### `<input value=...>` doesn't update or stops updating
@@ -37,11 +83,11 @@ Many DOM attributes can be updated either by setting an attribute on the DOM nod
 This means that in practice, attributes like `value` or `checked` on an `<input/>` element only update the _default_ value for the `<input/>`. If you want to reactively update the value, you should use `prop:value` instead to set the `value` property.
 
 ```rust
-let (a, set_a) = create_signal(cx, "Starting value".to_string());
+let (a, set_a) = create_signal("Starting value".to_string());
 let on_input = move |ev| set_a(event_target_value(&ev));
 
 view! {
-	cx,
+
 	// ❌ reactivity doesn't work as expected: typing only updates the default
 	//    of each input, so if you start typing in the second input, it won't
 	//    update the first one
@@ -51,13 +97,29 @@ view! {
 ```
 
 ```rust
-let (a, set_a) = create_signal(cx, "Starting value".to_string());
+let (a, set_a) = create_signal("Starting value".to_string());
 let on_input = move |ev| set_a(event_target_value(&ev));
 
 view! {
-	cx,
+
 	// ✅ works as intended by setting the value *property*
 	<input prop:value=a on:input=on_input />
 	<input prop:value=a on:input=on_input />
 }
 ```
+
+## Build configuration
+
+### Cargo feature resolution in workspaces
+
+A new [version](https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions) of Cargo's feature resolver was introduced for the 2021 edition of Rust.
+For single crate projects it will select a resolver version based on the Rust edition in `Cargo.toml`. As there is no Rust edition present for `Cargo.toml` in a workspace, Cargo will default to the pre 2021 edition resolver.
+This can cause issues resulting in non WASM compatible code being built for a WASM target. Seeing `mio` failing to build is often a sign that none WASM compatible code is being included in the build.
+
+The resolver version can be set in the workspace `Cargo.toml` to remedy this issue.
+
+```toml
+[workspace]
+members = ["member1", "member2"]
+resolver = "2"
+```

docs/book/.gitignore

@@ -1 +1 @@
-book
+book

docs/book/README.md

@@ -0,0 +1,3 @@
+The Leptos book is now available at [https://book.leptos.dev](https://book.leptos.dev).
+
+The source code for the book has moved to [https://github.com/leptos-rs/book](https://github.com/leptos-rs/book). Please open issues or make PRs in that repository.

docs/book/book.toml

@@ -1,16 +1,10 @@
-[book]
-authors = ["Greg Johnston"]
-language = "en"
-multilingual = false
-src = "src"
-title = "The Leptos Guide"
+[output.html]
+additional-css = ["./mdbook-admonish.css"]
+[output.html.playground]
+runnable = false
 
 [preprocessor]
 
-[preprocessor.mermaid]
-command = "mdbook-mermaid"
-
-[output]
-
-[output.html]
-additional-js = ["mermaid.min.js", "mermaid-init.js"]
+[preprocessor.admonish]
+command = "mdbook-admonish"
+assets_version = "3.0.1" # do not edit: managed by `mdbook-admonish install`

docs/book/mdbook-admonish.css

@@ -0,0 +1,345 @@
+@charset "UTF-8";
+:root {
+  --md-admonition-icon--admonish-note: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25z'/></svg>");
+  --md-admonition-icon--admonish-abstract: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M17 9H7V7h10m0 6H7v-2h10m-3 6H7v-2h7M12 3a1 1 0 0 1 1 1 1 1 0 0 1-1 1 1 1 0 0 1-1-1 1 1 0 0 1 1-1m7 0h-4.18C14.4 1.84 13.3 1 12 1c-1.3 0-2.4.84-2.82 2H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V5a2 2 0 0 0-2-2z'/></svg>");
+  --md-admonition-icon--admonish-info: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M13 9h-2V7h2m0 10h-2v-6h2m-1-9A10 10 0 0 0 2 12a10 10 0 0 0 10 10 10 10 0 0 0 10-10A10 10 0 0 0 12 2z'/></svg>");
+  --md-admonition-icon--admonish-tip: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M17.66 11.2c-.23-.3-.51-.56-.77-.82-.67-.6-1.43-1.03-2.07-1.66C13.33 7.26 13 4.85 13.95 3c-.95.23-1.78.75-2.49 1.32-2.59 2.08-3.61 5.75-2.39 8.9.04.1.08.2.08.33 0 .22-.15.42-.35.5-.23.1-.47.04-.66-.12a.58.58 0 0 1-.14-.17c-1.13-1.43-1.31-3.48-.55-5.12C5.78 10 4.87 12.3 5 14.47c.06.5.12 1 .29 1.5.14.6.41 1.2.71 1.73 1.08 1.73 2.95 2.97 4.96 3.22 2.14.27 4.43-.12 6.07-1.6 1.83-1.66 2.47-4.32 1.53-6.6l-.13-.26c-.21-.46-.77-1.26-.77-1.26m-3.16 6.3c-.28.24-.74.5-1.1.6-1.12.4-2.24-.16-2.9-.82 1.19-.28 1.9-1.16 2.11-2.05.17-.8-.15-1.46-.28-2.23-.12-.74-.1-1.37.17-2.06.19.38.39.76.63 1.06.77 1 1.98 1.44 2.24 2.8.04.14.06.28.06.43.03.82-.33 1.72-.93 2.27z'/></svg>");
+  --md-admonition-icon--admonish-success: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='m9 20.42-6.21-6.21 2.83-2.83L9 14.77l9.88-9.89 2.83 2.83L9 20.42z'/></svg>");
+  --md-admonition-icon--admonish-question: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='m15.07 11.25-.9.92C13.45 12.89 13 13.5 13 15h-2v-.5c0-1.11.45-2.11 1.17-2.83l1.24-1.26c.37-.36.59-.86.59-1.41a2 2 0 0 0-2-2 2 2 0 0 0-2 2H8a4 4 0 0 1 4-4 4 4 0 0 1 4 4 3.2 3.2 0 0 1-.93 2.25M13 19h-2v-2h2M12 2A10 10 0 0 0 2 12a10 10 0 0 0 10 10 10 10 0 0 0 10-10c0-5.53-4.5-10-10-10z'/></svg>");
+  --md-admonition-icon--admonish-warning: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M13 14h-2V9h2m0 9h-2v-2h2M1 21h22L12 2 1 21z'/></svg>");
+  --md-admonition-icon--admonish-failure: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M20 6.91 17.09 4 12 9.09 6.91 4 4 6.91 9.09 12 4 17.09 6.91 20 12 14.91 17.09 20 20 17.09 14.91 12 20 6.91z'/></svg>");
+  --md-admonition-icon--admonish-danger: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M11 15H6l7-14v8h5l-7 14v-8z'/></svg>");
+  --md-admonition-icon--admonish-bug: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M14 12h-4v-2h4m0 6h-4v-2h4m6-6h-2.81a5.985 5.985 0 0 0-1.82-1.96L17 4.41 15.59 3l-2.17 2.17a6.002 6.002 0 0 0-2.83 0L8.41 3 7 4.41l1.62 1.63C7.88 6.55 7.26 7.22 6.81 8H4v2h2.09c-.05.33-.09.66-.09 1v1H4v2h2v1c0 .34.04.67.09 1H4v2h2.81c1.04 1.79 2.97 3 5.19 3s4.15-1.21 5.19-3H20v-2h-2.09c.05-.33.09-.66.09-1v-1h2v-2h-2v-1c0-.34-.04-.67-.09-1H20V8z'/></svg>");
+  --md-admonition-icon--admonish-example: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M7 13v-2h14v2H7m0 6v-2h14v2H7M7 7V5h14v2H7M3 8V5H2V4h2v4H3m-1 9v-1h3v4H2v-1h2v-.5H3v-1h1V17H2m2.25-7a.75.75 0 0 1 .75.75c0 .2-.08.39-.21.52L3.12 13H5v1H2v-.92L4 11H2v-1h2.25z'/></svg>");
+  --md-admonition-icon--admonish-quote: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M14 17h3l2-4V7h-6v6h3M6 17h3l2-4V7H5v6h3l-2 4z'/></svg>");
+  --md-details-icon: url("data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M8.59 16.58 13.17 12 8.59 7.41 10 6l6 6-6 6-1.41-1.42Z'/></svg>");
+}
+
+:is(.admonition) {
+  display: flow-root;
+  margin: 1.5625em 0;
+  padding: 0 1.2rem;
+  color: var(--fg);
+  page-break-inside: avoid;
+  background-color: var(--bg);
+  border: 0 solid black;
+  border-inline-start-width: 0.4rem;
+  border-radius: 0.2rem;
+  box-shadow: 0 0.2rem 1rem rgba(0, 0, 0, 0.05), 0 0 0.1rem rgba(0, 0, 0, 0.1);
+}
+@media print {
+  :is(.admonition) {
+    box-shadow: none;
+  }
+}
+:is(.admonition) > * {
+  box-sizing: border-box;
+}
+:is(.admonition) :is(.admonition) {
+  margin-top: 1em;
+  margin-bottom: 1em;
+}
+:is(.admonition) > .tabbed-set:only-child {
+  margin-top: 0;
+}
+html :is(.admonition) > :last-child {
+  margin-bottom: 1.2rem;
+}
+
+a.admonition-anchor-link {
+  display: none;
+  position: absolute;
+  left: -1.2rem;
+  padding-right: 1rem;
+}
+a.admonition-anchor-link:link, a.admonition-anchor-link:visited {
+  color: var(--fg);
+}
+a.admonition-anchor-link:link:hover, a.admonition-anchor-link:visited:hover {
+  text-decoration: none;
+}
+a.admonition-anchor-link::before {
+  content: "§";
+}
+
+:is(.admonition-title, summary.admonition-title) {
+  position: relative;
+  min-height: 4rem;
+  margin-block: 0;
+  margin-inline: -1.6rem -1.2rem;
+  padding-block: 0.8rem;
+  padding-inline: 4.4rem 1.2rem;
+  font-weight: 700;
+  background-color: rgba(68, 138, 255, 0.1);
+  print-color-adjust: exact;
+  -webkit-print-color-adjust: exact;
+  display: flex;
+}
+:is(.admonition-title, summary.admonition-title) p {
+  margin: 0;
+}
+html :is(.admonition-title, summary.admonition-title):last-child {
+  margin-bottom: 0;
+}
+:is(.admonition-title, summary.admonition-title)::before {
+  position: absolute;
+  top: 0.625em;
+  inset-inline-start: 1.6rem;
+  width: 2rem;
+  height: 2rem;
+  background-color: #448aff;
+  print-color-adjust: exact;
+  -webkit-print-color-adjust: exact;
+  mask-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"></svg>');
+  -webkit-mask-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"></svg>');
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-size: contain;
+  content: "";
+}
+:is(.admonition-title, summary.admonition-title):hover a.admonition-anchor-link {
+  display: initial;
+}
+
+details.admonition > summary.admonition-title::after {
+  position: absolute;
+  top: 0.625em;
+  inset-inline-end: 1.6rem;
+  height: 2rem;
+  width: 2rem;
+  background-color: currentcolor;
+  mask-image: var(--md-details-icon);
+  -webkit-mask-image: var(--md-details-icon);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-size: contain;
+  content: "";
+  transform: rotate(0deg);
+  transition: transform 0.25s;
+}
+details[open].admonition > summary.admonition-title::after {
+  transform: rotate(90deg);
+}
+
+:is(.admonition):is(.admonish-note) {
+  border-color: #448aff;
+}
+
+:is(.admonish-note) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(68, 138, 255, 0.1);
+}
+:is(.admonish-note) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #448aff;
+  mask-image: var(--md-admonition-icon--admonish-note);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-note);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-abstract, .admonish-summary, .admonish-tldr) {
+  border-color: #00b0ff;
+}
+
+:is(.admonish-abstract, .admonish-summary, .admonish-tldr) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(0, 176, 255, 0.1);
+}
+:is(.admonish-abstract, .admonish-summary, .admonish-tldr) > :is(.admonition-title, summary.admonition-title)::before {
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+  mask-image: var(--md-admonition-icon--admonish-abstract);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-abstract);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
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+}
+
+:is(.admonish-info, .admonish-todo) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(0, 184, 212, 0.1);
+}
+:is(.admonish-info, .admonish-todo) > :is(.admonition-title, summary.admonition-title)::before {
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+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-tip, .admonish-hint, .admonish-important) {
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+}
+
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+}
+:is(.admonish-tip, .admonish-hint, .admonish-important) > :is(.admonition-title, summary.admonition-title)::before {
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+  -webkit-mask-image: var(--md-admonition-icon--admonish-tip);
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+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-success, .admonish-check, .admonish-done) {
+  border-color: #00c853;
+}
+
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+  background-color: rgba(0, 200, 83, 0.1);
+}
+:is(.admonish-success, .admonish-check, .admonish-done) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #00c853;
+  mask-image: var(--md-admonition-icon--admonish-success);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-success);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-question, .admonish-help, .admonish-faq) {
+  border-color: #64dd17;
+}
+
+:is(.admonish-question, .admonish-help, .admonish-faq) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(100, 221, 23, 0.1);
+}
+:is(.admonish-question, .admonish-help, .admonish-faq) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #64dd17;
+  mask-image: var(--md-admonition-icon--admonish-question);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-question);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-warning, .admonish-caution, .admonish-attention) {
+  border-color: #ff9100;
+}
+
+:is(.admonish-warning, .admonish-caution, .admonish-attention) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(255, 145, 0, 0.1);
+}
+:is(.admonish-warning, .admonish-caution, .admonish-attention) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #ff9100;
+  mask-image: var(--md-admonition-icon--admonish-warning);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-warning);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-failure, .admonish-fail, .admonish-missing) {
+  border-color: #ff5252;
+}
+
+:is(.admonish-failure, .admonish-fail, .admonish-missing) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(255, 82, 82, 0.1);
+}
+:is(.admonish-failure, .admonish-fail, .admonish-missing) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #ff5252;
+  mask-image: var(--md-admonition-icon--admonish-failure);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-failure);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-danger, .admonish-error) {
+  border-color: #ff1744;
+}
+
+:is(.admonish-danger, .admonish-error) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(255, 23, 68, 0.1);
+}
+:is(.admonish-danger, .admonish-error) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #ff1744;
+  mask-image: var(--md-admonition-icon--admonish-danger);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-danger);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-bug) {
+  border-color: #f50057;
+}
+
+:is(.admonish-bug) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(245, 0, 87, 0.1);
+}
+:is(.admonish-bug) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #f50057;
+  mask-image: var(--md-admonition-icon--admonish-bug);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-bug);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-example) {
+  border-color: #7c4dff;
+}
+
+:is(.admonish-example) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(124, 77, 255, 0.1);
+}
+:is(.admonish-example) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #7c4dff;
+  mask-image: var(--md-admonition-icon--admonish-example);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-example);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+:is(.admonition):is(.admonish-quote, .admonish-cite) {
+  border-color: #9e9e9e;
+}
+
+:is(.admonish-quote, .admonish-cite) > :is(.admonition-title, summary.admonition-title) {
+  background-color: rgba(158, 158, 158, 0.1);
+}
+:is(.admonish-quote, .admonish-cite) > :is(.admonition-title, summary.admonition-title)::before {
+  background-color: #9e9e9e;
+  mask-image: var(--md-admonition-icon--admonish-quote);
+  -webkit-mask-image: var(--md-admonition-icon--admonish-quote);
+  mask-repeat: no-repeat;
+  -webkit-mask-repeat: no-repeat;
+  mask-size: contain;
+  -webkit-mask-repeat: no-repeat;
+}
+
+.navy :is(.admonition) {
+  background-color: var(--sidebar-bg);
+}
+
+.ayu :is(.admonition),
+.coal :is(.admonition) {
+  background-color: var(--theme-hover);
+}
+
+.rust :is(.admonition) {
+  background-color: var(--sidebar-bg);
+  color: var(--sidebar-fg);
+}
+.rust .admonition-anchor-link:link, .rust .admonition-anchor-link:visited {
+  color: var(--sidebar-fg);
+}

docs/book/mermaid-init.js

@@ -1 +0,0 @@
-mermaid.initialize({startOnLoad:true});

docs/book/project/ch02_getting_started/Cargo.toml

@@ -1,7 +0,0 @@
-[package]
-name = "ch02_getting_started"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-leptos = "0.0.18"

docs/book/project/ch02_getting_started/index.html

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width, initial-scale=1" />
-		<title>Leptos • Todos</title>
-
-		<!-- This custom link tag with `data-trunk` tells Trunk to insert code here to load our Rust/Wasm code -->
-		<!-- `data-wasm-opt=z` tells the compiler to optimize for binary size in a release build -->
-		<link data-trunk rel="rust" data-wasm-opt="z" />
-
-	</head>
-	<body></body>
-</html>

docs/book/project/ch02_getting_started/src/main.rs

@@ -1,5 +0,0 @@
-use leptos::*;
-
-fn main() {
-    mount_to_body(|_cx| view! { cx,  <p>"Hello, world!"</p> })
-}

docs/book/project/ch03_building_ui/Cargo.toml

@@ -1,7 +0,0 @@
-[package]
-name = "ch03_building_ui"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-leptos = "0.0.18"

docs/book/project/ch03_building_ui/index.html

@@ -1,14 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-	<head>
-		<meta charset="utf-8" />
-		<meta name="viewport" content="width=device-width, initial-scale=1" />
-		<title>Leptos • Todos</title>
-
-		<!-- This custom link tag with `data-trunk` tells Trunk to insert code here to load our Rust/Wasm code -->
-		<!-- `data-wasm-opt=z` tells the compiler to optimize for binary size in a release build -->
-		<link data-trunk rel="rust" data-wasm-opt="z" />
-
-	</head>
-	<body></body>
-</html>

docs/book/project/ch03_building_ui/src/main.rs

@@ -1,39 +0,0 @@
-use leptos::*;
-
-fn main() {
-    mount_to_body(|cx| {
-        let name = "gbj";
-        let userid = 0;
-        let _input_element: Element;
-
-        view! {
-            cx,
-            <main>
-                <h1>"My Tasks"</h1>     // text nodes are wrapped in quotation marks
-                <h2>"by " {name}</h2>
-                <input
-                    type="text"         // attributes work just like they do in HTML
-                    name="new-todo"
-                    prop:value="todo"   // `prop:` lets you set a property on a DOM node
-                    value="initial"     // side note: the DOM `value` attribute only sets *initial* value
-                                        // this is very important when working with forms!
-                    _ref=_input_element // `_ref` stores tis element in a variable
-                />
-                <ul data-user=userid>   // attributes can take expressions as values
-                    <li class="todo my-todo" // here we set the `class` attribute
-                        class:completed=true // `class:` also lets you toggle individual classes
-                        on:click=|_| todo!() // `on:` adds an event listener
-                    >
-                        "Buy milk."
-                    </li>
-                    <li class="todo my-todo" class:completed=false>
-                        "???"
-                    </li>
-                    <li class="todo my-todo" class:completed=false>
-                        "Profit!!!"
-                    </li>
-                </ul>
-            </main>
-        }
-    })
-}

docs/book/project/ch04_reactivity/Cargo.toml

@@ -1,7 +0,0 @@
-[package]
-name = "ch04_reactivity"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-leptos = "0.0.18"

docs/book/project/ch04_reactivity/src/main.rs

@@ -1,28 +0,0 @@
-use leptos::*;
-
-fn main() {
-    run_scope(create_runtime(), |cx| {
-        // signal
-        let (count, set_count) = create_signal(cx, 1);
-
-        // derived signal
-        let double_count = move || count() * 2;
-
-        // memo
-        let memoized_square = create_memo(cx, move |_| count() * count());
-
-        // effect
-        create_effect(cx, move |_| {
-            println!(
-                "count =\t\t{} \ndouble_count = \t{}, \nsquare = \t{}",
-                count(),
-                double_count(),
-                memoized_square()
-            );
-        });
-
-        set_count(1);
-        set_count(2);
-        set_count(3);
-    });
-}

docs/book/src/01_introduction.md

@@ -1,11 +1,2 @@
-# Introduction
-
-This book is intended as an introduction to the [Leptos](https://github.com/gbj/leptos) Web framework. Together, we’ll build a simple todo app—first as a client-side app, then as a full-stack app.
-
-The guide doesn’t assume you know anything about fine-grained reactivity or the details of modern Web frameworks. It does assume you are familiar with the Rust programming language, HTML, CSS, and the DOM and other Web APIs.
-
-Leptos is most similar to frameworks like [Solid](https://www.solidjs.com) (JavaScript) and [Sycamore](https://sycamore-rs.netlify.app/) (Rust). There are some similarities to other frameworks like React (JavaScript), Yew (Rust), and Dioxus (Rust), so knowledge of one of those frameworks may also make it easier to understand Leptos.
-
-You can find more detailed docs for each part of the API at [Docs.rs](https://docs.rs/leptos/latest/leptos/).
-
-**The guide is a work in progress.**
+<meta http-equiv="refresh" content="0; URL=https://book.leptos.dev/">
+<link rel="canonical" href="https://book.leptos.dev/">

docs/book/src/02_getting_started.md

@@ -1,37 +0,0 @@
-# Getting Started
-
-> The code for this chapter can be found [here](https://github.com/gbj/leptos/tree/main/docs/book/project/ch02_getting_started).
-
-The easiest way to get started using Leptos is to use [Trunk](https://trunkrs.dev/), as many of our [examples](https://github.com/gbj/leptos/tree/main/examples) do. (Trunk is a simple build tool that includes a dev server.)
-
-If you don’t already have it installed, you can install Trunk by running
-
-```bash
-cargo install --lock trunk
-```
-
-Create a basic Rust binary project
-
-```bash
-cargo init leptos-todo
-```
-
-Add `leptos` as a dependency to your `Cargo.toml` with the `csr` featured enabled. (That stands for “client-side rendering.” We’ll talk more about Leptos’s support for server-side rendering and hydration later.)
-
-```toml
-leptos = "0.0"
-```
-
-You’ll want to set up a basic `index.html` with the following content:
-
-```html
-{{#include ../project/ch02_getting_started/index.html}}
-```
-
-Let’s start with a very simple `main.rs`
-
-```rust
-{{#include ../project/ch02_getting_started/src/main.rs}}
-```
-
-Now run `trunk serve --open`. Trunk should automatically compile your app and open it in your default browser. If you make edits to `main.rs`, Trunk will recompile your source code and live-reload the page.

docs/book/src/03_building_ui.md

@@ -1,49 +0,0 @@
-# Templating: Building User Interfaces
-
-> The code for this chapter can be found [here](https://github.com/gbj/leptos/tree/main/docs/book/project/ch03_building_ui).
-
-## RSX and the `view!` macro
-
-Okay, that “Hello, world!” was a little boring. We’re going to be building a todo app, so let’s look at something a little more complicated.
-
-As you noticed in the first example, Leptos lets you describe your user interface with a declarative `view!` macro. It looks something like this:
-
-```
-view! {
-	cx, // this is the "reactive scope": more on that in the next chapter
-	<p>"..."</p> // this is some HTML-ish stuff
-}
-```
-
-The “HTML-ish stuff” is what we call “RSX”: XML in Rust. (You may recognize the similarity to JSX, which is the mixed JavaScript/XML syntax used by frameworks like React.)
-
-Here’s a more in-depth example:
-
-```rust
-{{#include ../project/ch03_building_ui/src/main.rs}}
-```
-
-You’ll probably notice a few things right away:
-
-1. Elements without children need to be explicit closed with a `/` (`<input/>`, not `<input>`)
-2. Text nodes are formatted as strings, i.e., wrapped in quotation marks (`"My Tasks"`)
-3. Dynamic blocks can be inserted as children of elements, if wrapped in curly braces (`<h2>"by " {name}</h2>`)
-4. Attributes can be given Rust expressions as values. This could be a string literal as in HTML (`<input type="text" .../>)` or a variable or block (`data-user=userid` or `on:click=move |_| { ... }`)
-5. Unlike in HTML, whitespace is ignored and should be manually added (it’s `<h2>"by " {name}</h2>`, not `<h2>"by" {name}</h2>`; the space between `"by"` and `{name}` is ignored.)
-6. Normal attributes work exactly like you'd think they would.
-7. There are also special, prefixed attributes.
-
-- `class:` lets you make targeted updates to a single class
-- `on:` lets you add an event listener
-- `prop:` lets you set a property on a DOM element
-- `_ref` stores the DOM element you’re creating in a variable
-
-> You can find more information in the [reference docs for the `view!` macro](https://docs.rs/leptos/0.0.15/leptos/macro.view.html).
-
-## But, wait...
-
-This example shows some parts of the Leptos templating syntax. But it’s completely static.
-
-How do you actually make the user interface interactive?
-
-In the next chapter, we’ll talk about “fine-grained reactivity,” which is the core of the Leptos framework.

docs/book/src/04_reactivity.md

@@ -1,240 +0,0 @@
-# Reactivity
-
-## What is reactivity?
-
-A few months ago, I completely baffled a friend by trying to explain what I was working on. “You have two variables, right? Call them `a` and `b`. And then you have a third variable, `c`. And when you update `a` or `b`, the value of `c` just _automatically changes_. And it changes _on the screen_! Automatically!”
-
-“Isn’t that just... how computers work?” she asked me, puzzled. If your programming experience is limited to something like spreadsheets, it’s a reasonable enough assumption. This is, after all, how math works.
-
-But you know this isn't how ordinary imperative programming works.
-
-```rust,should_panic
-let mut a = 0;
-let mut b = 0;
-let c = a + b;
-
-assert_eq!(c, 0); // sanity check
-
-a = 2;
-b = 2;
-
-// now c = 4, right?
-assert_eq!(c, 4); // nope. we all know this is wrong!
-```
-
-But that’s _exactly_ how reactive programming works.
-
-```rust
-use leptos::*;
-
-run_scope(create_runtime(), |cx| {
-    let (a, set_a) = create_signal(cx, 0);
-    let (b, set_b) = create_signal(cx, 0);
-    let c = move || a() + b();
-
-    assert_eq!(c(), 0); // yep, still true
-
-    set_a(2);
-    set_b(2);
-
-    assert_eq!(c(), 4); // ohhhhh yeah.
-});
-```
-
-Hopefully, this makes some intuitive sense. After all, `c` is a closure. Calling it again causes it to access its values a second time. This isn’t _that_ cool.
-
-```rust
-use leptos::*;
-
-run_scope(create_runtime(), |cx| {
-    let (a, set_a) = create_signal(cx, 0);
-    let (b, set_b) = create_signal(cx, 0);
-    let c = move || a() + b();
-
-    create_effect(cx, move |_| {
-        println!("c = {}", c()); // prints "c = 0"
-    });
-
-    set_a(2); // prints "c = 2"
-    set_b(2); // prints "c = 4"
-});
-```
-
-This example’s a little different. [`create_effect`](https://docs.rs/leptos/latest/leptos/fn.create_effect.html) defines a “side effect,” a bridge between the reactive system of signals and the outside world. Effects synchronize the reactive system with everything else: the console, the filesystem, an HTTP request, whatever.
-
-Because the closure `c` is called within the effect and in turns calls the signals `a` and `b`, the effect automatically subscribes to the signals `a` and `b`. This means that whenever `a` or `b` is updated, the effect will re-run, logging the value again.
-
-You can picture the reactive graph for this system like this:
-
-```mermaid
-graph TD;
-    A-->C;
-    B-->C;
-    C-->Effect;
-```
-
-This is the foundation on which _everything_ else is built.
-
-## Reactive Primitives
-
-### Overview
-
-The reactive system is built on the interaction between these two halves: **signals** and **effects**. When a signal is called inside an effect, the effect automatically subscribes to the signal. When a signal’s value is updated, it automatically notifies all its subscribers, and they re-run.
-
-The following simple example contains most of the core reactive concepts:
-
-```rust
-{{#include ../project/ch04_reactivity/src/main.rs}}
-```
-
-This creates a reactive graph like this:
-
-```mermaid
-graph TD;
-    count-->double_count;
-    count-->memoized_square;
-    count-->effect;
-    double_count-->effect;
-    memoized_square-->effect;
-```
-
-**Signals** are reactive values created using [`create_signal`](https://docs.rs/leptos/latest/leptos/fn.create_signal.html) or [`create_rw_signal`](https://docs.rs/leptos/latest/leptos/fn.create_rw_signal.html).
-
-**Derived Signals** computations in ordinary closures that rely on other signals. The computation re-runs whenever you access its value.
-
-**Memos** are computations that are memoized with [create_memo](https://docs.rs/leptos/latest/leptos/fn.create_memo.html). Memos only re-run when one of their signal dependencies has changed.
-
-And **effects** (created with [create_effect](<(https://docs.rs/leptos/latest/leptos/fn.create_effect.html)>) synchronize the reactive system with something outside it.
-
-The rest of this chapter will walk through each of these concepts in more depth.
-
-### Signals
-
-A **signal** is a piece of data that may change over time, and notifies other code when it has changed. This is the core primitive of Leptos’s reactive system.
-
-Creating a signal is very simple. You call `create_signal`, passing in the reactive scope and the default value, and receive a tuple containing a `ReadSignal` and a `WriteSignal`.
-
-```rust
-let (value, set_value) = create_signal(cx, 0);
-```
-
-> If you’ve used signals in Sycamore or Solid, observables in MobX or Knockout, or a similar primitive in reactive library, you probably have a pretty good idea of how signals work in Leptos. If you’re familiar with React, Yew, or Dioxus, you may recognize a similar pattern to their `use_state` hooks.
-
-#### `ReadSignal<T>`
-
-The [`ReadSignal`](https://docs.rs/leptos/latest/leptos/struct.ReadSignal.html) half of this tuple allows you to get the current value of the signal. Reading that value in a reactive context automatically subscribes to any further changes. You can access the value by simply calling the `ReadSignal` as a function.
-
-```rust
-let (value, set_value) = create_signal(cx, 0);
-
-// calling value() with return the current value of the signal,
-// and automatically track changes if you're in a reactive context
-assert_eq!(value(), 0);
-```
-
-> Here, a **reactive context** means anywhere within an `Effect`. Leptos’s templating system is built on top of its reactive system, so if you’re reading the signal’s value within the template, the template will automatically subscribe to the signal and update exactly the value that needs to change in the DOM.
-
-Calling a `ReadSignal` clones the value it contains. If that’s too expensive, use [`ReadSignal::with()`](https://docs.rs/leptos/latest/leptos/struct.ReadSignal.html#method.with) to borrow the value and do whatever you need.
-
-```rust
-struct MySuperExpensiveStruct {
-    a: String,
-    b: StructThatsSuperExpensiveToClone
-}
-let (value, set_value) = create_signal(cx, MySuperExpensiveStruct::default());
-
-// ❌ this is going to clone the `StructThatsSuperExpensiveToClone` unnecessarily!
-let lowercased = move || value().a.to_lowercase();
-// ✅ only use what we need
-let lowercased = move || value.with(|value: &MySuperExpensiveStruct| value.a.to_lowercase());
-```
-
-#### `WriteSignal<T>`
-
-The [`WriteSignal`](https://docs.rs/leptos/latest/leptos/struct.WriteSignal.html) half of this tuple allows you to update the value of the signal, which will automatically notify anything that’s listening to the value that something has changed. If you simply call the `WriteSignal` as a function, its value will be set to the argument you pass. If you want to mutate the value in place instead of replacing it, you can call [`WriteSignal::update`](https://docs.rs/leptos/latest/leptos/struct.WriteSignal.html#method.update) instead.
-
-```rust
-// often you just want to replace the value
-let (value, set_value) = create_signal(cx, 0);
-set_value(1);
-assert_eq!(value(), 1);
-
-// sometimes you want to mutate something in place, like a Vec. Just call update()
-let (items, set_items) = create_signal(cx, vec![0]);
-set_items.update(|items: &mut Vec<i32>| items.push(1));
-assert_eq!(items(), vec![1]);
-```
-
-> Under the hood, `set_value(1)` is just syntactic sugar for `set_value.update(|n| *n = 1)`.
-
-#### `RwSignal<T>`
-
-This kind of “read-write segregation,” in which the getter and the setter are stored in separate variables, may be familiar from the tuple-based ”hooks” pattern in libraries like React, Solid, Yew, or Dioxus. It encourages clear contracts between components. For example, if a child component only needs to be able to read a signal, but shouldn’t be able to update it (and therefore trigger changes in other parts of the application), you can pass it only the `ReadSignal`.
-
-Sometimes, however, you may prefer to keep the getter and setter combined in one variable. For example, it’s awkward and repetitive to store both halves of a signal in another data structure:
-
-```rust
-# use leptos::*;
-
-// pretty repetitive
-struct AppState {
-    count: ReadSignal<i32>,
-    set_count: WriteSignal<i32>,
-    name: ReadSignal<String>,
-    set_name: WriteSignal<String>
-}
-
-#[component]
-fn App(cx: Scope) {
-    let (count, set_count) = create_signal(cx, 0);
-    let (name, set_name) = create_signal(cx, "Alice".to_string());
-    provide_context(cx, AppState {
-        count,
-        set_count,
-        name,
-        set_name
-    })
-
-    todo!()
-}
-```
-
-Or maybe you just like to keep your getters and setters in one place.
-
-In this case, you can use [`create_rw_signal`](https://docs.rs/leptos/latest/leptos/fn.create_rw_signal.html) and the [`RwSignal`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html) type. This returns a **R**ead-**w**rite Signal, which has the same [`get`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html#method.get), [`with`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html#method.with), [`set`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html#method.set), and [`update`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html#method.update) functions as the `ReadSignal` and `WriteSignal` halves.
-
-```rust
-# use leptos::*;
-
-// better
-struct AppState {
-    count: RwSignal<i32>,
-    name: RwSignal<String>,
-}
-
-#[component]
-fn App(cx: Scope) {
-    let count = create_rw_signal(cx, 0);
-    let name = create_rw_signal(cx, "Alice".to_string());
-    provide_context(cx, AppState {
-        count,
-        name,
-    })
-
-    todo!()
-}
-```
-
-If you still want to hand off read-only access to another part of the app, you can get a `ReadSignal` with [`RwSignal::read_only()`](https://docs.rs/leptos/latest/leptos/struct.RwSignal.html#method.get).
-
-### Derived Signals
-
-(todo)
-
-### Memos
-
-(todo)
-
-### Effects
-
-(todo)

docs/book/src/15_global_state.md

@@ -0,0 +1,2 @@
+<meta http-equiv="refresh" content="0; URL=https://book.leptos.dev/15_global_state.html">
+<link rel="canonical" href="https://book.leptos.dev/15_global_state.html">

docs/book/src/SUMMARY.md

@@ -1,6 +1,56 @@
 # Summary
 
 - [Introduction](./01_introduction.md)
-- [Getting Started](./02_getting_started.md)
-- [Templating: Building User Interfaces](./03_building_ui.md)
-- [Reactivity: Making Things Interactive](./04_reactivity.md)
+- [Getting Started](./getting_started/README.md)
+  - [Leptos DX](./getting_started/leptos_dx.md)
+  - [The Leptos Community and leptos-* Crates](./getting_started/community_crates.md)
+- [Part 1: Building User Interfaces](./view/README.md)
+  - [A Basic Component](./view/01_basic_component.md)
+  - [Dynamic Attributes](./view/02_dynamic_attributes.md)
+  - [Components and Props](./view/03_components.md)
+  - [Iteration](./view/04_iteration.md)
+  - [Iterating over More Complex Data](./view/04b_iteration.md)
+  - [Forms and Inputs](./view/05_forms.md)
+  - [Control Flow](./view/06_control_flow.md)
+  - [Error Handling](./view/07_errors.md)
+  - [Parent-Child Communication](./view/08_parent_child.md)
+  - [Passing Children to Components](./view/09_component_children.md)
+  - [No Macros: The View Builder Syntax](./view/builder.md)
+- [Reactivity](./reactivity/README.md)
+  - [Working with Signals](./reactivity/working_with_signals.md)
+  - [Responding to Changes with `create_effect`](./reactivity/14_create_effect.md)
+  - [Interlude: Reactivity and Functions](./reactivity/interlude_functions.md)
+- [Testing](./testing.md)
+- [Async](./async/README.md)
+  - [Loading Data with Resources](./async/10_resources.md)
+  - [Suspense](./async/11_suspense.md)
+  - [Transition](./async/12_transition.md)
+  - [Actions](./async/13_actions.md)
+- [Interlude: Projecting Children](./interlude_projecting_children.md)
+- [Global State Management](./15_global_state.md)
+- [Router](./router/README.md)
+  - [Defining `<Routes/>`](./router/16_routes.md)
+  - [Nested Routing](./router/17_nested_routing.md)
+  - [Params and Queries](./router/18_params_and_queries.md)
+  - [`<A/>`](./router/19_a.md)
+  - [`<Form/>`](./router/20_form.md)
+- [Interlude: Styling](./interlude_styling.md)
+- [Metadata](./metadata.md)
+- [Client-Side Rendering: Wrapping Up](./csr_wrapping_up.md)
+- [Part 2: Server Side Rendering](./ssr/README.md)
+  - [`cargo-leptos`](./ssr/21_cargo_leptos.md)
+  - [The Life of a Page Load](./ssr/22_life_cycle.md)
+  - [Async Rendering and SSR “Modes”](./ssr/23_ssr_modes.md)
+  - [Hydration Bugs](./ssr/24_hydration_bugs.md)
+- [Working with the Server](./server/README.md)
+  - [Server Functions](./server/25_server_functions.md)
+  - [Extractors](./server/26_extractors.md)
+  - [Responses and Redirects](./server/27_response.md)
+- [Progressive Enhancement and Graceful Degradation](./progressive_enhancement/README.md)
+  - [`<ActionForm/>`s](./progressive_enhancement/action_form.md)
+- [Deployment](./deployment/README.md)
+  - [Optimizing WASM Binary Size](./deployment/binary_size.md)
+- [Guide: Islands](./islands.md)
+
+- [Appendix: How Does the Reactive System Work?](./appendix_reactive_graph.md)
+

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