From 69103617c9033ba908f806d315e562a5ab004f90 Mon Sep 17 00:00:00 2001 From: youxingzhi Date: Mon, 29 Apr 2024 11:16:24 +0800 Subject: [PATCH 1/5] add blogs --- readme.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/readme.md b/readme.md index fe212d8..69e1496 100644 --- a/readme.md +++ b/readme.md @@ -23,3 +23,7 @@ [从零实现 React v18，但 WASM 版 - [7] 支持 FunctionComponent 类型](https://www.paradeto.com/2024/04/19/big-react-wasm-7/) [从零实现 React v18，但 WASM 版 - [8] 支持 Hooks](https://www.paradeto.com/2024/04/22/big-react-wasm-8/) + +[从零实现 React v18，但 WASM 版 - [9] 使用 Jest 进行单元测试](https://www.paradeto.com/2024/04/23/big-react-wasm-9/) + +[从零实现 React v18，但 WASM 版 - [10] 实现单节点更新流程](https://www.paradeto.com/2024/04/26/big-react-wasm-10/) From 019edd4357c1086afe3f36d7a59407850a5f7842 Mon Sep 17 00:00:00 2001 From: youxingzhi Date: Mon, 29 Apr 2024 20:03:36 +0800 Subject: [PATCH 2/5] blog-11: create synthetic_event --- Cargo.lock | 545 ++++++++++++++++++ package.json | 2 +- packages/react-dom/Cargo.toml | 3 +- packages/react-dom/src/host_config.rs | 13 +- packages/react-dom/src/lib.rs | 3 +- packages/react-dom/src/renderer.rs | 8 +- packages/react-dom/src/synthetic_event.rs | 166 ++++++ .../react-reconciler/src/complete_work.rs | 1 + packages/react-reconciler/src/fiber.rs | 2 +- packages/react-reconciler/src/lib.rs | 4 +- packages/shared/src/lib.rs | 4 + 11 files changed, 741 insertions(+), 10 deletions(-) create mode 100644 packages/react-dom/src/synthetic_event.rs diff --git a/Cargo.lock b/Cargo.lock index ec39ddf..535bb5c 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,6 +2,21 @@ # It is not intended for manual editing. version = 3 +[[package]] +name = "autocfg" +version = "1.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f1fdabc7756949593fe60f30ec81974b613357de856987752631dea1e3394c80" + +[[package]] +name = "bincode" +version = "1.3.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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"registry+https://github.com/rust-lang/crates.io-index" checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b" +[[package]] +name = "wasi" +version = "0.11.0+wasi-snapshot-preview1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423" + [[package]] name = "wasm-bindgen" version = "0.2.92" @@ -237,3 +773,12 @@ dependencies = [ "js-sys", "wasm-bindgen", ] + +[[package]] +name = "winnow" +version = "0.5.40" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876" +dependencies = [ + "memchr", +] diff --git a/package.json b/package.json index 97d46ca..ba23706 100644 --- a/package.json +++ b/package.json @@ -7,7 +7,7 @@ "example": "examples" }, "scripts": { - "build": "node scripts/build.js", + "build:dev": "ENV=dev node scripts/build.js", "build:test": "node scripts/build.js --test", "test": "npm run build:test && jest" }, diff --git a/packages/react-dom/Cargo.toml b/packages/react-dom/Cargo.toml index 78d0653..4e5e028 100644 --- a/packages/react-dom/Cargo.toml +++ b/packages/react-dom/Cargo.toml @@ -12,7 +12,7 @@ default = ["console_error_panic_hook"] [dependencies] wasm-bindgen = "0.2.84" -web-sys = { version = "0.3.69", features = ["console", "Window", "Document", "Text", "Element"] } +web-sys = { version = "0.3.69", features = ["console", "Window", "Document", "Text", "Element", "EventListener"] } react-reconciler = { path = "../react-reconciler" } shared = { path = "../shared" } # The `console_error_panic_hook` crate provides better debugging of panics by @@ -20,6 +20,7 @@ shared = { path = "../shared" } # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for # code size when deploying. console_error_panic_hook = { version = "0.1.7", optional = true } +gloo = "0.11.0" [dev-dependencies] wasm-bindgen-test = "0.3.34" diff --git a/packages/react-dom/src/host_config.rs b/packages/react-dom/src/host_config.rs index a55ec95..31c71c9 100644 --- a/packages/react-dom/src/host_config.rs +++ b/packages/react-dom/src/host_config.rs @@ -1,11 +1,14 @@ use std::any::Any; use std::rc::Rc; +use wasm_bindgen::JsValue; use web_sys::{Node, window}; use react_reconciler::HostConfig; use shared::log; +use crate::synthetic_event::update_event_props; + pub struct ReactDomHostConfig; impl HostConfig for ReactDomHostConfig { @@ -15,11 +18,17 @@ impl HostConfig for ReactDomHostConfig { Rc::new(Node::from(document.create_text_node(content.as_str()))) } - fn create_instance(&self, _type: String) -> Rc { + fn create_instance(&self, _type: String, props: Rc) -> Rc { let window = window().expect("no global `window` exists"); let document = window.document().expect("should have a document on window"); match document.create_element(_type.as_ref()) { - Ok(element) => Rc::new(Node::from(element)), + Ok(element) => { + let element = update_event_props( + element.clone(), + &*props.clone().downcast::().unwrap(), + ); + Rc::new(Node::from(element)) + } Err(_) => todo!(), } } diff --git a/packages/react-dom/src/lib.rs b/packages/react-dom/src/lib.rs index 0e4c3d6..9e8cca5 100644 --- a/packages/react-dom/src/lib.rs +++ b/packages/react-dom/src/lib.rs @@ -12,6 +12,7 @@ use crate::utils::set_panic_hook; mod host_config; mod renderer; mod utils; +mod synthetic_event; #[wasm_bindgen(js_name = createRoot)] pub fn create_root(container: &JsValue) -> Renderer { @@ -24,6 +25,6 @@ pub fn create_root(container: &JsValue) -> Renderer { } }; let root = reconciler.create_container(Rc::new(node)); - let renderer = Renderer::new(root, reconciler); + let renderer = Renderer::new(root, reconciler, container); renderer } diff --git a/packages/react-dom/src/renderer.rs b/packages/react-dom/src/renderer.rs index a79090c..dbf697d 100644 --- a/packages/react-dom/src/renderer.rs +++ b/packages/react-dom/src/renderer.rs @@ -7,21 +7,25 @@ use wasm_bindgen::prelude::*; use react_reconciler::fiber::FiberRootNode; use react_reconciler::Reconciler; +use crate::synthetic_event::init_event; + #[wasm_bindgen] pub struct Renderer { + container: JsValue, root: Rc>, reconciler: Reconciler, } impl Renderer { - pub fn new(root: Rc>, reconciler: Reconciler) -> Self { - Self { root, reconciler } + pub fn new(root: Rc>, reconciler: Reconciler, container: &JsValue) -> Self { + Self { root, reconciler, container: container.clone() } } } #[wasm_bindgen] impl Renderer { pub fn render(&self, element: &JsValue) -> JsValue { + init_event(self.container.clone(), "click".to_string()); self.reconciler .update_container(element.clone(), self.root.clone()) } diff --git a/packages/react-dom/src/synthetic_event.rs b/packages/react-dom/src/synthetic_event.rs new file mode 100644 index 0000000..2fbf331 --- /dev/null +++ b/packages/react-dom/src/synthetic_event.rs @@ -0,0 +1,166 @@ +use gloo::events::EventListener; +use wasm_bindgen::{JsCast, JsValue}; +use wasm_bindgen::closure::Closure; +use web_sys::{Element, Event}; +use web_sys::js_sys::{Function, Object, Reflect}; + +use shared::{derive_from_js_value, is_dev, log}; + +static VALID_EVENT_TYPE_LIST: [&str; 1] = ["click"]; +static ELEMENT_EVENT_PROPS_KEY: &str = "__props"; + +struct Paths { + capture: Vec, + bubble: Vec, +} + +impl Paths { + fn new() -> Self { + Paths { + capture: vec![], + bubble: vec![], + } + } +} + +fn create_synthetic_event(e: Event) -> Event { + Reflect::set(&*e, &"__stopPropagation".into(), &JsValue::from_bool(false)); + + let e_cloned = e.clone(); + let origin_stop_propagation = derive_from_js_value(&*e, "stopPropagation"); + let closure = Closure::wrap(Box::new(move || { + Reflect::set( + &*e_cloned, + &"__stopPropagation".into(), + &JsValue::from_bool(true), + ); + if origin_stop_propagation.is_function() { + let origin_stop_propagation = origin_stop_propagation.dyn_ref::().unwrap(); + origin_stop_propagation.call0(&JsValue::null()); + } + }) as Box); + let function = closure.as_ref().unchecked_ref::().clone(); + closure.forget(); + Reflect::set(&*e.clone(), &"stopPropagation".into(), &function.into()); + e +} + +fn trigger_event_flow(paths: Vec, se: &Event) { + for callback in paths { + callback.call1(&JsValue::null(), se); + if derive_from_js_value(se, "__stopPropagation") + .as_bool() + .unwrap() + { + break; + } + } +} + +fn dispatch_event(container: &Element, event_type: String, e: &Event) { + if e.target().is_none() { + log!("Target is none"); + return; + } + + let target_element = e.target().unwrap().dyn_into::().unwrap(); + let Paths { capture, bubble } = + collect_paths(Some(target_element), container, event_type.as_str()); + + let se = create_synthetic_event(e.clone()); + + if is_dev() { + log!("Event {} capture phase", event_type); + } + + trigger_event_flow(capture, &se); + if !derive_from_js_value(&se, "__stopPropagation") + .as_bool() + .unwrap() { + if is_dev() { + log!("Event {} bubble phase", event_type); + } + trigger_event_flow(bubble, &se); + } +} + +fn collect_paths( + mut target_element: Option, + container: &Element, + event_type: &str, +) -> Paths { + let mut paths = Paths::new(); + while target_element.is_some() && Object::is(target_element.as_ref().unwrap(), container) { + let event_props = + derive_from_js_value(target_element.as_ref().unwrap(), ELEMENT_EVENT_PROPS_KEY); + if event_props.is_object() { + let callback_name_list = get_event_callback_name_from_event_type(event_type); + if callback_name_list.is_some() { + for (i, callback_name) in callback_name_list.as_ref().unwrap().iter().enumerate() { + let event_callback = derive_from_js_value(&event_props, *callback_name); + if event_callback.is_function() { + let event_callback = event_callback.dyn_ref::().unwrap(); + if i == 0 { + paths.capture.insert(0, event_callback.clone()); + } else { + paths.bubble.push(event_callback.clone()); + } + } + } + } + } + target_element = target_element.unwrap().parent_element(); + } + paths +} + +fn get_event_callback_name_from_event_type(event_type: &str) -> Option> { + if event_type == "click" { + return Some(vec!["onClickCapture", "onClick"]); + } + None +} + +pub fn init_event(container: JsValue, event_type: String) { + if !VALID_EVENT_TYPE_LIST.contains(&event_type.clone().as_str()) { + log!("Unsupported event type: {:?}", event_type); + return; + } + + if is_dev() { + log!("Init event {:?}", event_type); + } + + let element = container + .clone() + .dyn_into::() + .expect("container is not element"); + let on_click = EventListener::new(&element.clone(), event_type.clone(), move |event| { + dispatch_event(&element, event_type.clone(), event) + }); + on_click.forget(); +} + +pub fn update_event_props(node: Element, props: &JsValue) -> Element { + let js_value = derive_from_js_value(&node, ELEMENT_EVENT_PROPS_KEY); + let element_event_props = if !js_value.is_object() { + js_value.dyn_into::().unwrap() + } else { + Object::new() + }; + for event_type in VALID_EVENT_TYPE_LIST { + let callback_name_list = get_event_callback_name_from_event_type(event_type); + if callback_name_list.is_none() { + break; + } + + for callback_name in callback_name_list.clone().unwrap() { + if element_event_props.has_own_property(&callback_name.into()) { + let callback = derive_from_js_value(props, callback_name); + Reflect::set(&element_event_props, &callback_name.into(), &callback); + } + } + } + Reflect::set(&node, &ELEMENT_EVENT_PROPS_KEY.into(), &element_event_props); + node +} diff --git a/packages/react-reconciler/src/complete_work.rs b/packages/react-reconciler/src/complete_work.rs index 27efe19..0e3d078 100644 --- a/packages/react-reconciler/src/complete_work.rs +++ b/packages/react-reconciler/src/complete_work.rs @@ -145,6 +145,7 @@ impl CompleteWork { .as_ref() .as_string() .unwrap(), + Rc::new(new_props), ); self.append_all_children(instance.clone(), work_in_progress.clone()); work_in_progress.clone().borrow_mut().state_node = diff --git a/packages/react-reconciler/src/fiber.rs b/packages/react-reconciler/src/fiber.rs index 2b1c553..0b7b2d0 100644 --- a/packages/react-reconciler/src/fiber.rs +++ b/packages/react-reconciler/src/fiber.rs @@ -22,7 +22,7 @@ pub enum StateNode { } #[derive(Debug, Clone)] -pub enum MemoizedState { +pub(crate) enum MemoizedState { JsValue(JsValue), Hook(Rc>), } diff --git a/packages/react-reconciler/src/lib.rs b/packages/react-reconciler/src/lib.rs index 6d30a4b..3651753 100644 --- a/packages/react-reconciler/src/lib.rs +++ b/packages/react-reconciler/src/lib.rs @@ -15,7 +15,7 @@ mod child_fiber; mod commit_work; mod complete_work; pub mod fiber; -pub mod fiber_flags; +mod fiber_flags; mod fiber_hooks; mod update_queue; mod work_loop; @@ -23,7 +23,7 @@ mod work_tags; pub trait HostConfig { fn create_text_instance(&self, content: String) -> Rc; - fn create_instance(&self, _type: String) -> Rc; + fn create_instance(&self, _type: String, props: Rc) -> Rc; fn append_initial_child(&self, parent: Rc, child: Rc); fn append_child_to_container(&self, child: Rc, parent: Rc); fn remove_child(&self, child: Rc, container: Rc); diff --git a/packages/shared/src/lib.rs b/packages/shared/src/lib.rs index 34ef729..4f4b021 100644 --- a/packages/shared/src/lib.rs +++ b/packages/shared/src/lib.rs @@ -19,3 +19,7 @@ pub fn derive_from_js_value(js_value: &JsValue, str: &str) -> JsValue { } } } + +pub fn is_dev() -> bool { + env!("ENV") == "dev" +} From f2cf4314ae0570b5157517aa473a06e6145bdfa4 Mon Sep 17 00:00:00 2001 From: youxingzhi Date: Tue, 30 Apr 2024 11:17:54 +0800 Subject: [PATCH 3/5] blog-11: fix synthetic_event bugs --- examples/hello-world/src/App.tsx | 28 +++++++++---------- examples/hello-world/src/main.tsx | 4 +-- packages/react-dom/src/host_config.rs | 7 +++-- packages/react-dom/src/synthetic_event.rs | 15 +++++++--- packages/react-reconciler/src/child_fiber.rs | 5 ++-- .../react-reconciler/src/complete_work.rs | 4 +-- packages/react-reconciler/src/fiber.rs | 4 +-- packages/react-reconciler/src/lib.rs | 2 +- packages/react/src/lib.rs | 14 +++++----- packages/shared/src/lib.rs | 22 +++++++++++++++ 10 files changed, 66 insertions(+), 39 deletions(-) diff --git a/examples/hello-world/src/App.tsx b/examples/hello-world/src/App.tsx index 862ad52..2e63abe 100644 --- a/examples/hello-world/src/App.tsx +++ b/examples/hello-world/src/App.tsx @@ -1,24 +1,24 @@ import {useState} from 'react' -let n = 0 function App() { - const [name, setName] = useState(() => false) - const [age, setAge] = useState(() => 10) - if (n === 0) { - let tid = setTimeout(() => { - n++ - setName(true) - setAge(11) - clearTimeout((tid)) - }, 1000) - } + const [num, updateNum] = useState(0); - return name ? {name + age} : 'N/A' + const isOdd = num % 2; + console.log(isOdd) + return ( +

{ + updateNum(prev => prev + 1); + }} + > + {isOdd ?
odd
:

even

} +

+ ); } -function Comp({children}) { - return {`Hello world, ${children}`} +function Child({num}: { num: number }) { + return
{num}
; } export default App diff --git a/examples/hello-world/src/main.tsx b/examples/hello-world/src/main.tsx index 4f2a33c..fd0b0ef 100644 --- a/examples/hello-world/src/main.tsx +++ b/examples/hello-world/src/main.tsx @@ -1,8 +1,6 @@ import {createRoot} from 'react-dom' -import App from './App.tsx' +import App from "./App.tsx"; const root = createRoot(document.getElementById("root")) -const a = -console.log(a) root.render() diff --git a/packages/react-dom/src/host_config.rs b/packages/react-dom/src/host_config.rs index 31c71c9..ade8810 100644 --- a/packages/react-dom/src/host_config.rs +++ b/packages/react-dom/src/host_config.rs @@ -3,6 +3,7 @@ use std::rc::Rc; use wasm_bindgen::JsValue; use web_sys::{Node, window}; +use web_sys::js_sys::JSON::stringify; use react_reconciler::HostConfig; use shared::log; @@ -12,10 +13,12 @@ use crate::synthetic_event::update_event_props; pub struct ReactDomHostConfig; impl HostConfig for ReactDomHostConfig { - fn create_text_instance(&self, content: String) -> Rc { + fn create_text_instance(&self, content: &JsValue) -> Rc { let window = window().expect("no global `window` exists"); let document = window.document().expect("should have a document on window"); - Rc::new(Node::from(document.create_text_node(content.as_str()))) + Rc::new(Node::from(document.create_text_node( + stringify(content).unwrap().as_string().unwrap().as_str(), + ))) } fn create_instance(&self, _type: String, props: Rc) -> Rc { diff --git a/packages/react-dom/src/synthetic_event.rs b/packages/react-dom/src/synthetic_event.rs index 2fbf331..1803bef 100644 --- a/packages/react-dom/src/synthetic_event.rs +++ b/packages/react-dom/src/synthetic_event.rs @@ -76,7 +76,8 @@ fn dispatch_event(container: &Element, event_type: String, e: &Event) { trigger_event_flow(capture, &se); if !derive_from_js_value(&se, "__stopPropagation") .as_bool() - .unwrap() { + .unwrap() + { if is_dev() { log!("Event {} bubble phase", event_type); } @@ -90,7 +91,7 @@ fn collect_paths( event_type: &str, ) -> Paths { let mut paths = Paths::new(); - while target_element.is_some() && Object::is(target_element.as_ref().unwrap(), container) { + while target_element.is_some() && !Object::is(target_element.as_ref().unwrap(), container) { let event_props = derive_from_js_value(target_element.as_ref().unwrap(), ELEMENT_EVENT_PROPS_KEY); if event_props.is_object() { @@ -143,7 +144,7 @@ pub fn init_event(container: JsValue, event_type: String) { pub fn update_event_props(node: Element, props: &JsValue) -> Element { let js_value = derive_from_js_value(&node, ELEMENT_EVENT_PROPS_KEY); - let element_event_props = if !js_value.is_object() { + let element_event_props = if js_value.is_object() { js_value.dyn_into::().unwrap() } else { Object::new() @@ -155,12 +156,18 @@ pub fn update_event_props(node: Element, props: &JsValue) -> Element { } for callback_name in callback_name_list.clone().unwrap() { - if element_event_props.has_own_property(&callback_name.into()) { + if props.is_object() + && props + .dyn_ref::() + .unwrap() + .has_own_property(&callback_name.into()) + { let callback = derive_from_js_value(props, callback_name); Reflect::set(&element_event_props, &callback_name.into(), &callback); } } } Reflect::set(&node, &ELEMENT_EVENT_PROPS_KEY.into(), &element_event_props); + node } diff --git a/packages/react-reconciler/src/child_fiber.rs b/packages/react-reconciler/src/child_fiber.rs index 8bb5def..585fb5d 100644 --- a/packages/react-reconciler/src/child_fiber.rs +++ b/packages/react-reconciler/src/child_fiber.rs @@ -4,7 +4,7 @@ use std::rc::Rc; use wasm_bindgen::JsValue; use web_sys::js_sys::{Object, Reflect}; -use shared::{derive_from_js_value, log, REACT_ELEMENT_TYPE}; +use shared::{derive_from_js_value, log, REACT_ELEMENT_TYPE, type_of}; use crate::fiber::FiberNode; use crate::fiber_flags::Flags; @@ -131,6 +131,7 @@ fn reconcile_single_text_node( Rc::new(RefCell::new(created)) } + fn _reconcile_child_fibers( return_fiber: Rc>, current_first_child: Option>>, @@ -140,7 +141,7 @@ fn _reconcile_child_fibers( if new_child.is_some() { let new_child = &new_child.unwrap(); - if new_child.is_string() { + if type_of(new_child, "string") || type_of(new_child, "number") { return Some(place_single_child( reconcile_single_text_node( return_fiber, diff --git a/packages/react-reconciler/src/complete_work.rs b/packages/react-reconciler/src/complete_work.rs index 0e3d078..6890113 100644 --- a/packages/react-reconciler/src/complete_work.rs +++ b/packages/react-reconciler/src/complete_work.rs @@ -164,10 +164,8 @@ impl CompleteWork { } } else { let text_instance = self.host_config.create_text_instance( - Reflect::get(&new_props, &JsValue::from_str("content")) + &Reflect::get(&new_props, &JsValue::from_str("content")) .unwrap() - .as_string() - .unwrap(), ); work_in_progress.clone().borrow_mut().state_node = Some(Rc::new(StateNode::Element(text_instance.clone()))); diff --git a/packages/react-reconciler/src/fiber.rs b/packages/react-reconciler/src/fiber.rs index 0b7b2d0..efbfeab 100644 --- a/packages/react-reconciler/src/fiber.rs +++ b/packages/react-reconciler/src/fiber.rs @@ -148,7 +148,7 @@ impl FiberNode { let mut wip = wip_cloned.borrow_mut(); let c = c_rc.borrow(); wip.pending_props = pending_props; - wip.update_queue = Some(c.update_queue.as_ref().unwrap().clone()); + wip.update_queue = c.update_queue.clone(); wip.flags = c.flags.clone(); wip.child = c.child.clone(); wip.memoized_props = c.memoized_props.clone(); @@ -242,8 +242,6 @@ impl Debug for FiberRootNode { current_borrowed.pending_props.as_ref(), &JsValue::from_str("content"), ) - .unwrap() - .as_string() .unwrap(), current_borrowed.flags ) diff --git a/packages/react-reconciler/src/lib.rs b/packages/react-reconciler/src/lib.rs index 3651753..7cc9ec5 100644 --- a/packages/react-reconciler/src/lib.rs +++ b/packages/react-reconciler/src/lib.rs @@ -22,7 +22,7 @@ mod work_loop; mod work_tags; pub trait HostConfig { - fn create_text_instance(&self, content: String) -> Rc; + fn create_text_instance(&self, content: &JsValue) -> Rc; fn create_instance(&self, _type: String, props: Rc) -> Rc; fn append_initial_child(&self, parent: Rc, child: Rc); fn append_child_to_container(&self, child: Rc, parent: Rc); diff --git a/packages/react/src/lib.rs b/packages/react/src/lib.rs index 4c13620..f23b90b 100644 --- a/packages/react/src/lib.rs +++ b/packages/react/src/lib.rs @@ -1,4 +1,4 @@ -use js_sys::{Object, Reflect, JSON}; +use js_sys::{JSON, Object, Reflect}; use wasm_bindgen::prelude::*; use shared::REACT_ELEMENT_TYPE; @@ -35,7 +35,7 @@ pub fn jsx_dev(_type: &JsValue, config: &JsValue, key: &JsValue) -> JsValue { &"$$typeof".into(), &JsValue::from_str(REACT_ELEMENT_TYPE), ) - .expect("$$typeof panic"); + .expect("$$typeof panic"); Reflect::set(&react_element, &"type".into(), _type).expect("type panic"); let props = Object::new(); @@ -82,11 +82,11 @@ pub fn is_valid_element(object: &JsValue) -> bool { object.is_object() && !object.is_null() && Reflect::get(&object, &"$$typeof".into()) - .unwrap_or("".into()) - .as_string() - .unwrap_or("".into()) - .as_str() - == REACT_ELEMENT_TYPE + .unwrap_or("".into()) + .as_string() + .unwrap_or("".into()) + .as_str() + == REACT_ELEMENT_TYPE } #[wasm_bindgen(js_name = useState)] diff --git a/packages/shared/src/lib.rs b/packages/shared/src/lib.rs index 4f4b021..42acc61 100644 --- a/packages/shared/src/lib.rs +++ b/packages/shared/src/lib.rs @@ -23,3 +23,25 @@ pub fn derive_from_js_value(js_value: &JsValue, str: &str) -> JsValue { pub fn is_dev() -> bool { env!("ENV") == "dev" } + + +pub fn type_of(val: &JsValue, _type: &str) -> bool { + let t = if val.is_undefined() { + "undefined".to_string() + } else if val.is_null() { + "null".to_string() + } else if val.as_bool().is_some() { + "boolean".to_string() + } else if val.as_f64().is_some() { + "number".to_string() + } else if val.as_string().is_some() { + "string".to_string() + } else if val.is_function() { + "function".to_string() + } else if val.is_object() { + "object".to_string() + } else { + "unknown".to_string() + }; + t == _type +} \ No newline at end of file From 5d1446c632940ebc77ae79fc6b060d482101d90f Mon Sep 17 00:00:00 2001 From: youxingzhi Date: Tue, 30 Apr 2024 11:43:07 +0800 Subject: [PATCH 4/5] blog-11: fix bugs of create_work_in_progress --- Cargo.lock | 1 + examples/hello-world/src/App.tsx | 2 +- packages/react-dom/Cargo.toml | 1 + packages/react-dom/src/host_config.rs | 25 ++++++++++++++++++++++--- packages/react-reconciler/src/fiber.rs | 19 ++++++++++--------- 5 files changed, 35 insertions(+), 13 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 535bb5c..5c73bd3 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -505,6 +505,7 @@ version = "0.1.0" dependencies = [ "console_error_panic_hook", "gloo", + "js-sys", "react-reconciler", "shared", "wasm-bindgen", diff --git a/examples/hello-world/src/App.tsx b/examples/hello-world/src/App.tsx index 2e63abe..ecbe143 100644 --- a/examples/hello-world/src/App.tsx +++ b/examples/hello-world/src/App.tsx @@ -5,7 +5,7 @@ function App() { const [num, updateNum] = useState(0); const isOdd = num % 2; - console.log(isOdd) + return (

{ diff --git a/packages/react-dom/Cargo.toml b/packages/react-dom/Cargo.toml index 4e5e028..23b4c4b 100644 --- a/packages/react-dom/Cargo.toml +++ b/packages/react-dom/Cargo.toml @@ -21,6 +21,7 @@ shared = { path = "../shared" } # code size when deploying. console_error_panic_hook = { version = "0.1.7", optional = true } gloo = "0.11.0" +js-sys = "0.3.69" [dev-dependencies] wasm-bindgen-test = "0.3.34" diff --git a/packages/react-dom/src/host_config.rs b/packages/react-dom/src/host_config.rs index ade8810..701c5bd 100644 --- a/packages/react-dom/src/host_config.rs +++ b/packages/react-dom/src/host_config.rs @@ -1,23 +1,42 @@ use std::any::Any; use std::rc::Rc; +use js_sys::JSON::stringify; use wasm_bindgen::JsValue; use web_sys::{Node, window}; -use web_sys::js_sys::JSON::stringify; use react_reconciler::HostConfig; -use shared::log; +use shared::{log, type_of}; use crate::synthetic_event::update_event_props; pub struct ReactDomHostConfig; +pub fn to_string(js_value: &JsValue) -> String { + js_value.as_string().unwrap_or_else(|| { + if js_value.is_undefined() { + "undefined".to_owned() + } else if js_value.is_null() { + "null".to_owned() + } else if type_of(js_value, "boolean") { + let bool_value = js_value.as_bool().unwrap(); + bool_value.to_string() + } else if js_value.as_f64().is_some() { + let num_value = js_value.as_f64().unwrap(); + num_value.to_string() + } else { + let js_string = stringify(&js_value).unwrap(); + js_string.into() + } + }) +} + impl HostConfig for ReactDomHostConfig { fn create_text_instance(&self, content: &JsValue) -> Rc { let window = window().expect("no global `window` exists"); let document = window.document().expect("should have a document on window"); Rc::new(Node::from(document.create_text_node( - stringify(content).unwrap().as_string().unwrap().as_str(), + to_string(content).as_str() ))) } diff --git a/packages/react-reconciler/src/fiber.rs b/packages/react-reconciler/src/fiber.rs index efbfeab..5fc8db2 100644 --- a/packages/react-reconciler/src/fiber.rs +++ b/packages/react-reconciler/src/fiber.rs @@ -120,21 +120,17 @@ impl FiberNode { let mut wip = { let c = c_rc.borrow(); let mut wip = FiberNode::new(c.tag.clone(), pending_props, c.key.clone()); - wip.update_queue = match c.update_queue.as_ref() { - None => None, - Some(update_queue) => { - Some(update_queue.clone()) - } - }; + wip._type = c._type.clone(); + wip.state_node = c.state_node.clone(); + + wip.update_queue = c.update_queue.clone(); wip.flags = c.flags.clone(); wip.child = c.child.clone(); wip.memoized_props = c.memoized_props.clone(); wip.memoized_state = c.memoized_state.clone(); + wip.alternate = Some(current); wip }; - wip._type = c_rc.borrow()._type.clone(); - wip.state_node = c_rc.borrow().state_node.clone(); - wip.alternate = Some(current); let wip_rc = Rc::new(RefCell::new(wip)); { let mut fibler_node = c_rc.borrow_mut(); @@ -148,6 +144,11 @@ impl FiberNode { let mut wip = wip_cloned.borrow_mut(); let c = c_rc.borrow(); wip.pending_props = pending_props; + wip.flags = Flags::NoFlags; + wip.subtree_flags = Flags::NoFlags; + wip.deletions = None; + wip._type = c._type.clone(); + wip.update_queue = c.update_queue.clone(); wip.flags = c.flags.clone(); wip.child = c.child.clone(); From 17f6b7a7142e589a401b6dc6056a537ee7efaef8 Mon Sep 17 00:00:00 2001 From: youxingzhi Date: Tue, 30 Apr 2024 16:12:37 +0800 Subject: [PATCH 5/5] blog-11: change demo --- examples/hello-world/src/App.tsx | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/examples/hello-world/src/App.tsx b/examples/hello-world/src/App.tsx index ecbe143..cbe2731 100644 --- a/examples/hello-world/src/App.tsx +++ b/examples/hello-world/src/App.tsx @@ -8,11 +8,18 @@ function App() { return (

{ + onClickCapture={(e) => { + e.stopPropagation() + console.log('click h3', e.currentTarget) updateNum(prev => prev + 1); }} > - {isOdd ?
odd
:

even

} +
{ + console.log('click div', e.currentTarget) + }}> + {isOdd ?
odd
:

even

} +
+

); }