Match-id-67235ae4d6663ecaefc73d8cadbd3548c3dd52ab

libs/horizon/src/renderer/ContextSaver.ts

@@ -1,6 +1,6 @@
 /**
  * 保存与深度遍历相关的一些context。
- * 在深度遍历过程中，begin阶段会修改一些全局的值，在complete阶段会恢复。
+ * 在深度遍历过程中，capture阶段会修改一些全局的值，在bubble阶段会恢复。
  */
 
 import type { VNode, ContextType } from './Types';
@@ -11,98 +11,50 @@ import { ContextProvider } from './vnode/VNodeTags';
 
 // 保存的是“http://www.w3.org/1999/xhtml”或“http://www.w3.org/2000/svg”，
 // 用于识别是使用document.createElement()还是使用document.createElementNS()创建DOM
-const CTX_NAMESPACE = 'CTX_NAMESPACE';
-
-// 保存的是Horizon.createContext()的值，或Provider重新设置的值
-const CTX_CONTEXT = 'CTX_CONTEXT';
-
-// 旧版context API,是否更改。
-const CTX_OLD_CHANGE = 'CTX_OLD_CHANGE';
-let ctxOldChange = false;
 let ctxNamespace = '';
 
-function setContext(vNode: VNode, contextName, value) {
-  if (vNode.contexts === null) {
-    vNode.contexts = {
-      [contextName]: value,
-    };
-  } else {
-    vNode.contexts[contextName] = value;
-  }
-}
-
-function getContext(vNode: VNode, contextName) {
-  if (vNode.contexts !== null) {
-    return vNode.contexts[contextName];
-  }
-}
-
 // capture阶段设置
-function setNamespaceCtx(vNode: VNode, dom?: Container) {
+export function setNamespaceCtx(vNode: VNode, dom?: Container) {
   const nextContext = getNSCtx(ctxNamespace, vNode.type, dom);
 
-  setContext(vNode, CTX_NAMESPACE, ctxNamespace);
+  vNode.context = ctxNamespace;
+
   ctxNamespace = nextContext;
 }
 
 // bubble阶段恢复
-function resetNamespaceCtx(vNode: VNode) {
-  ctxNamespace = getContext(vNode, CTX_NAMESPACE);
+export function resetNamespaceCtx(vNode: VNode) {
+  ctxNamespace = vNode.context;
 }
 
-function getNamespaceCtx(): string {
+export function getNamespaceCtx(): string {
   return ctxNamespace;
 }
 
-function setContextCtx<T>(providerVNode: VNode, nextValue: T) {
+export function setContext<T>(providerVNode: VNode, nextValue: T) {
   const context: ContextType<T> = providerVNode.type._context;
 
-  setContext(providerVNode, CTX_CONTEXT, context.value);
+  providerVNode.context = context.value;
+
   context.value = nextValue;
 }
 
-function resetContextCtx(providerVNode: VNode) {
+export function resetContext(providerVNode: VNode) {
   const context: ContextType<any> = providerVNode.type._context;
 
-  context.value = getContext(providerVNode, CTX_CONTEXT);
+  context.value = providerVNode.context;
 }
 
 // 在局部更新时，恢复父节点的context
-function recoverParentsContextCtx(vNode: VNode) {
+export function recoverParentContext(vNode: VNode) {
   let parent = vNode.parent;
 
   while (parent !== null) {
     if (parent.tag === ContextProvider) {
-      const newValue = parent.props.value;
-      setContextCtx(parent, newValue);
+      parent.context = parent.props.value;
     }
     parent = parent.parent;
   }
 }
 
-function setContextChangeCtx(providerVNode: VNode, didChange: boolean) {
-  setContext(providerVNode, CTX_OLD_CHANGE, didChange);
-  ctxOldChange = didChange;
-}
-
-function getContextChangeCtx() {
-  return ctxOldChange;
-}
-
-function resetContextChangeCtx(vNode: VNode) {
-  ctxOldChange = getContext(vNode, CTX_OLD_CHANGE);
-}
-
-export {
-  getNamespaceCtx,
-  resetNamespaceCtx,
-  setNamespaceCtx,
-  setContextCtx,
-  resetContextCtx,
-  recoverParentsContextCtx,
-  setContextChangeCtx,
-  getContextChangeCtx,
-  resetContextChangeCtx,
-};
-
 

libs/horizon/src/renderer/TreeBuilder.ts

@@ -29,7 +29,7 @@ import {
   isExecuting,
   setExecuteMode
 } from './ExecuteMode';
-import { recoverParentsContextCtx, resetNamespaceCtx, setNamespaceCtx } from './ContextSaver';
+import { recoverParentContext, resetNamespaceCtx, setNamespaceCtx } from './ContextSaver';
 import {
   updateChildShouldUpdate,
   updateParentsChildShouldUpdate,
@@ -231,7 +231,7 @@ function buildVNodeTree(treeRoot: VNode) {
     }
 
     // 恢复父节点的context
-    recoverParentsContextCtx(startVNode);
+    recoverParentContext(startVNode);
   }
 
   // 重置环境变量，为重新进行深度遍历做准备

libs/horizon/src/renderer/render/BaseComponent.ts

@@ -7,7 +7,7 @@ import {
   TreeRoot,
   SuspenseComponent,
 } from '../vnode/VNodeTags';
-import { getContextChangeCtx, setContextCtx, setNamespaceCtx } from '../ContextSaver';
+import { setContext, setNamespaceCtx } from '../ContextSaver';
 import { FlagUtils } from '../vnode/VNodeFlags';
 import {onlyUpdateChildVNodes} from '../vnode/VNodeCreator';
 import componentRenders from './index';
@@ -26,7 +26,7 @@ function handlerContext(processing: VNode) {
       break;
     case ContextProvider: {
       const newValue = processing.props.value;
-      setContextCtx(processing, newValue);
+      setContext(processing, newValue);
       break;
     }
     // No Default
@@ -41,7 +41,6 @@ export function captureVNode(processing: VNode): VNode | null {
     if (
       !processing.isCreated &&
       processing.oldProps === processing.props &&
-      !getContextChangeCtx() &&
       !processing.shouldUpdate
     ) {
       // 复用还需对stack进行处理

libs/horizon/src/renderer/render/ClassComponent.ts

@@ -18,7 +18,6 @@ import { markRef } from './BaseComponent';
 import {
   processUpdates,
 } from '../UpdateHandler';
-import { getContextChangeCtx } from '../ContextSaver';
 import { setProcessingClassVNode } from '../GlobalVar';
 import { onlyUpdateChildVNodes } from '../vnode/VNodeCreator';
 import { createChildrenByDiff } from '../diff/nodeDiffComparator';
@@ -87,7 +86,7 @@ function callUpdateLifeCycle(processing: VNode, nextProps: object, clazz) {
   }
 }
 
-function markLifeCycle(processing: VNode, nextProps: object, shouldUpdate: Boolean) {
+function markLifeCycle(processing: VNode, nextProps: object, shouldUpdate: boolean) {
   if (processing.isCreated) {
     markComponentDidMount(processing);
   } else if (processing.state !== processing.oldState || shouldUpdate) {
@@ -136,7 +135,6 @@ export function captureRender(processing: VNode): VNode | null {
     // 如果 props, state, context 都没有变化且 isForceUpdate 为 false则不需要更新
     shouldUpdate = oldProps !== processing.props ||
       inst.state !== processing.state ||
-      getContextChangeCtx() ||
       processing.isForceUpdate;
 
     if (shouldUpdate) {
@@ -172,4 +170,4 @@ export function captureRender(processing: VNode): VNode | null {
   }
 }
 
-export function bubbleRender(processing: VNode) {}
+export function bubbleRender() {}

libs/horizon/src/renderer/render/ContextProvider.ts

@@ -4,9 +4,8 @@ import { isSame } from '../utils/compare';
 import { ClassComponent, ContextProvider } from '../vnode/VNodeTags';
 import { pushForceUpdate } from '../UpdateHandler';
 import {
-  getContextChangeCtx,
-  resetContextCtx,
-  setContextCtx,
+  resetContext,
+  setContext,
 } from '../ContextSaver';
 import { travelVNodeTree } from '../vnode/VNodeUtils';
 import { launchUpdateFromVNode } from '../TreeBuilder';
@@ -75,14 +74,14 @@ function captureContextProvider(processing: VNode): VNode | null {
   const newCtx = newProps.value;
 
   // 更新processing的context值为newProps.value
-  setContextCtx(processing, newCtx);
+  setContext(processing, newCtx);
 
   if (oldProps !== null) {
     const oldCtx = oldProps.value;
     const isSameContext = isSame(oldCtx, newCtx);
     if (isSameContext) {
       // context没有改变，复用
-      if (oldProps.children === newProps.children && !getContextChangeCtx()) {
+      if (oldProps.children === newProps.children) {
         return onlyUpdateChildVNodes(processing);
       }
     } else {
@@ -101,6 +100,6 @@ export function captureRender(processing: VNode): VNode | null {
 }
 
 export function bubbleRender(processing: VNode) {
-  resetContextCtx(processing);
+  resetContext(processing);
 }
 

libs/horizon/src/renderer/render/ForwardRef.ts

@@ -1,8 +1,8 @@
 import type {VNode} from '../Types';
 import {captureRender as funCaptureRender} from './FunctionComponent';
 
-export function captureRender(processing: VNode, shouldUpdate?: boolean): VNode | null {
-  return funCaptureRender(processing, shouldUpdate);
+export function captureRender(processing: VNode): VNode | null {
+  return funCaptureRender(processing);
 }
 
 export function bubbleRender() {}

libs/horizon/src/renderer/render/FunctionComponent.ts

@@ -5,7 +5,6 @@ import { resetDepContexts } from '../components/context/Context';
 import { runFunctionWithHooks } from '../hooks/HookMain';
 import { ForwardRef } from '../vnode/VNodeTags';
 import { FlagUtils, Update } from '../vnode/VNodeFlags';
-import { getContextChangeCtx } from '../ContextSaver';
 import { onlyUpdateChildVNodes } from '../vnode/VNodeCreator';
 import { createChildrenByDiff } from '../diff/nodeDiffComparator';
 
@@ -16,22 +15,10 @@ export function bubbleRender() {
 }
 
 // 判断children是否可以复用
-function checkIfCanReuseChildren(processing: VNode, shouldUpdate?: boolean) {
-  let isCanReuse = true;
-
-  if (!processing.isCreated) {
-    const oldProps = processing.oldProps;
-    const newProps = processing.props;
-
-    // 如果props或者context改变了
-    if (oldProps !== newProps || getContextChangeCtx() || processing.isDepContextChange) {
-      isCanReuse = false;
-    }
-  } else {
-    isCanReuse = false;
-  }
-
-  return isCanReuse;
+function checkIfCanReuseChildren(processing: VNode) {
+  return !processing.isCreated &&
+    processing.oldProps === processing.props &&
+    !processing.isDepContextChange;
 }
 
 export function setStateChange(isUpdate) {
@@ -46,7 +33,6 @@ export function captureFunctionComponent(
   processing: VNode,
   funcComp: any,
   nextProps: any,
-  shouldUpdate?: boolean,
 ) {
   // 函数组件内已完成异步动作
   if (processing.isSuspended) {
@@ -58,7 +44,7 @@ export function captureFunctionComponent(
   }
   resetDepContexts(processing);
 
-  const isCanReuse = checkIfCanReuseChildren(processing, shouldUpdate);
+  const isCanReuse = checkIfCanReuseChildren(processing);
   // 在执行exeFunctionHook前先设置stateChange为false
   setStateChange(false);
 
@@ -80,7 +66,7 @@ export function captureFunctionComponent(
   return processing.child;
 }
 
-export function captureRender(processing: VNode, shouldUpdate?: boolean): VNode | null {
+export function captureRender(processing: VNode): VNode | null {
   const Component = processing.type;
   const unresolvedProps = processing.props;
   const resolvedProps =
@@ -92,7 +78,6 @@ export function captureRender(processing: VNode, shouldUpdate?: boolean): VNode
     processing,
     Component,
     resolvedProps,
-    shouldUpdate,
   );
 }
 

libs/horizon/src/renderer/render/SuspenseComponent.ts

@@ -11,7 +11,6 @@ import {
 import { pushForceUpdate } from '../UpdateHandler';
 import { launchUpdateFromVNode, tryRenderFromRoot } from '../TreeBuilder';
 import { updateShouldUpdateOfTree } from '../vnode/VNodeShouldUpdate';
-import {getContextChangeCtx} from '../ContextSaver';
 import { markVNodePath } from '../utils/vNodePath';
 
 export enum SuspenseChildStatus {
@@ -130,7 +129,6 @@ export function captureRender(processing: VNode, shouldUpdate: boolean): Array<V
   if (
     !processing.isCreated &&
     processing.oldProps === processing.props &&
-    !getContextChangeCtx() &&
     !shouldUpdate
   ) {
     if (processing.suspenseState.childStatus === SuspenseChildStatus.ShowFallback) {

libs/horizon/src/renderer/vnode/VNode.ts

@@ -55,7 +55,7 @@ export class VNode {
   task: any;
 
   // 使用这个变量来记录修改前的值，用于恢复。
-  contexts: any;
+  context: any;
   // 因为LazyComponent会修改tag和type属性，为了能识别，增加一个属性
   isLazyComponent: boolean;
 
@@ -93,7 +93,7 @@ export class VNode {
         this.stateCallbacks = null;
         this.state = null;
         this.oldState = null;
-        this.contexts = null;
+        this.context = null;
         break;
       case FunctionComponent:
         this.realNode = null;
@@ -112,16 +112,16 @@ export class VNode {
         this.depContexts = null;
         this.isDepContextChange = false;
         this.oldState = null;
-        this.contexts = null;
+        this.context = null;
         break;
       case DomPortal:
         this.realNode = null;
-        this.contexts = null;
+        this.context = null;
         break;
       case DomComponent:
         this.realNode = null;
         this.changeList = null;
-        this.contexts = null;
+        this.context = null;
         break;
       case DomText:
         this.realNode = null;
@@ -137,7 +137,7 @@ export class VNode {
         };
         break;
       case ContextProvider:
-        this.contexts = null;
+        this.context = null;
         break;
       case MemoComponent:
         this.effectList = null;