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How to use cloneChildFibers method in Playwright Internal
Best JavaScript code snippet using playwright-internal
fiber.js
Source:fiber.js 
...183 if (instance === null || instance === undefined) {184 instance = wipFiber.stateNode = createInstance(wipFiber)185 } else if (wipFiber.props === instance.props && !wipFiber.partialState) {186 // no need to render, clone children from last time187 cloneChildFibers(wipFiber)188 return189 }190 instance.props = wipFiber.props191 instance.state = Object.assign({}, instance.state, wipFiber.partialState)192 wipFiber.partialState = null193 const newChildElements = wipFiber.stateNode.render()194 reconcileChildrenArray(wipFiber, newChildElements)195}196function cloneChildFibers (parentFiber) {197 const oldFiber = parentFiber.alternate198 if (!oldFiber.child) {199 return200 }201 let oldChild = oldFiber.child...
FiberBeginWork.js
Source:FiberBeginWork.js
...240 return null;241 } else {242 // This fiber doesn't have work, but its subtree does. Clone the child243 // fibers and continue.244 cloneChildFibers(current, workInProgress);245 return workInProgress.child;246 }247}248function reconcileChildren(249 current,250 workInProgress,251 nextChildren,252 renderExpirationTime,253) {254 if (current == null) {255 // If this is a fresh new component that hasn't been rendered yet, we256 // won't update its child set by applying minimal side-effects. Instead,257 // we will add them all to the child before it gets rendered. That means258 // we can optimize this reconciliation pass by not tracking side-effects....
min-react-v2.js
Source:min-react-v2.js
...107 // è°ç¨ç±»åå§å108 instance = wipFiber.stateNode = createInstance(wipFiber);109 } else if (wipFiber.props == instance.props && !wipFiber.partialState) {110 // ä¸éè¦æ´æ°,æå å¤å¶ å©å111 cloneChildFibers(wipFiber);112 return;113 }114 instance.props = wipFiber.props;115 instance.state = Object.assign({}, instance.state, wipFiber.partialState);116 wipFiber.partialState = null;117 const newChildElements = wipFiber.stateNode.render();118 reconcileChildrenArray(wipFiber, newChildElements);119}120// Effect tags121const PLACEMENT = 1;122const DELETION = 2;123const UPDATE = 3;124function arrify(val) {125 return val == null ? [] : Array.isArray(val) ? val : [val];126}127function reconcileChildrenArray(wipFiber, newChildElements) {128 const elements = arrify(newChildElements);129 let index = 0;130 let oldFiber = wipFiber.alternate ? wipFiber.alternate.child : null;131 let newFiber = null;132 while (index < elements.length || oldFiber != null) {133 const prevFiber = newFiber;134 const element = index < elements.length && elements[index];135 const sameType = oldFiber && element && element.type == oldFiber.type;136 if (sameType) {137 newFiber = {138 type: oldFiber.type,139 tag: oldFiber.tag,140 stateNode: oldFiber.stateNode,141 props: element.props,142 parent: wipFiber,143 alternate: oldFiber,144 partialState: oldFiber.partialState,145 effectTag: UPDATE146 };147 }148 if (element && !sameType) {149 newFiber = {150 type: element.type,151 tag: typeof element.type === 'string' ? HOST_COMPONENT : CLASS_COMPONENT,152 props: element.props,153 parent: wipFiber,154 effectTag: PLACEMENT155 };156 }157 if (oldFiber && !sameType) {158 oldFiber.effectTag = DELETION;159 wipFiber.effects = wipFiber.effects || [];160 wipFiber.effects.push(oldFiber);161 }162 if (oldFiber) {163 oldFiber = oldFiber.sibling;164 }165 if (index == 0) {166 wipFiber.child = newFiber;167 } else if (prevFiber && element) {168 prevFiber.sibling = newFiber;169 }170 index++;171 }172}173function cloneChildFibers(parentFiber) {174 const oldFiber = parentFiber.alternate;175 if (!oldFiber.child) {176 return;177 }178 let oldChild = oldFiber.child;179 let prevChild = null;180 while (oldChild) {181 const newChild = {182 type: oldChild.type,183 tag: oldChild.tag,184 stateNode: oldChild.stateNode,185 props: oldChild.props,186 partialState: oldChild.partialState,187 alternate: oldChild,...
reconciler.js
Source:reconciler.js
...11 Boolean(type.prototype) &&12 Boolean(type.prototype.isReactComponent)13 );14}15function cloneChildFibers(parentFiber) {16 const oldParentFiber = parentFiber.alternate;17 if (!oldParentFiber.child) {18 return;19 }20 let oldChildFiber = oldParentFiber.child;21 let prevFiber = null;22 while(oldChildFiber) {23 const newChildFiber = {24 type: oldChildFiber.type,25 tag: oldChildFiber.tag,26 stateNode: oldChildFiber.stateNode,27 props: oldChildFiber.props,28 partialState: oldChildFiber.partialState,29 alternate: oldChildFiber,30 parent: parentFiber,31 };32 if (prevFiber) {33 prevFiber.sibling = newChildFiber;34 } else {35 parentFiber.child = newChildFiber;36 }37 prevFiber = newChildFiber;38 oldChildFiber = oldChildFiber.sibling;39 }40}41export function updateClassComponent(wipFiber) {42 let instance = wipFiber.stateNode;43 if (!instance) {44 // first-time rendering45 instance = wipFiber.stateNode = createInstance(wipFiber);46 if (instance.componentWillMount) {47 instance.componentWillMount();48 }49 }50 else if (wipFiber.props === instance.props && !wipFiber.partialState) {51 cloneChildFibers(wipFiber);52 return;53 }54 // else {55 // // subsequent rendering56 // if (instance.componentWillReceiveProps) {57 // instance.componentWillReceiveProps(wipFiber.props);58 // }59 // let shouldUpdate = true;60 // if (instance.shouldComponentUpdate) {61 // shouldUpdate = instance.shouldComponentUpdate(62 // wipFiber.props,63 // Object.assign({}, instance.state, wipFiber.partialState)64 // );65 // }66 // if (shouldUpdate) {67 // if (instance.componentWillUpdate) {68 // instance.componentWillUpdate(wipFiber.props);69 // }70 // } else {71 // cloneChildFibers(wipFiber);72 // return;73 // }74 instance.props = wipFiber.props;75 instance.state = Object.assign({}, instance.state, wipFiber.partialState);76 wipFiber.partialState = null;77 const newChildElements = wipFiber.stateNode.render();78 reconcileChildrenArray(wipFiber, newChildElements);79}80let currentWipFiber = null;81let hookIndex = null;82export function updateFunctionComponent(wipFiber) {83 currentWipFiber = wipFiber;84 hookIndex = 0;85 wipFiber.hooks = [];...
ReactFiberBeginWork.js
Source:ReactFiberBeginWork.js
...20 const nextState = workInProgress.memoizedState;21 const nextChildren = nextState.element;22 if (prevChildren === nextChildren) {23 // å½åroot stateæªååï¼èµ°ä¼åè·¯å¾ï¼ä¸éè¦åè°åèç¹24 cloneChildFibers(current, workInProgress);25 return workInProgress.child;26 }27 reconcileChildren(current, workInProgress, nextChildren);28 return workInProgress.child29}30function updateContextProvider(current$$1, workInProgress) {31 var providerType = workInProgress.type;32 var context = providerType._context;33 var newProps = workInProgress.pendingProps;34 var oldProps = workInProgress.memoizedProps;35 var newValue = newProps.value;36 // pushProvider(workInProgress, newValue);37 context._currentValue = newValue;38 if (oldProps !== null) {...
updateClassComponent.js
Source:updateClassComponent.js
...95 workInProgress, 96 shouldUpdate, 97) {98 if (!shouldUpdate) {99 cloneChildFibers(workInProgress)100 } else {101 const instance = workInProgress.stateNode;102 const nextChildren = instance.render();103 reconcileChildren(current, workInProgress, nextChildren, renderExpirationTime)104 memoizeState(workInProgress, instance.state)105 memoizeProps(workInProgress, instance.props)106 }107 return workInProgress.child;...
step7.js
Source:step7.js
...21 instance = wipFiber.stateNode = createInstance(wipFiber);22 } else if(wipFiber.props === instance.props && !wipFiber.partialState) {23 // å¦æå³å°æ´æ°çfiberçpropsååå®ä¾çpropsç¸åä¸æ²¡ææ°çstateæ´æ°ï¼é£ä¹å°±ä¸éè¦åè¿è¡æ´æ°äºï¼è¿ä¹ç¸å½äºç®åçshouldComponentUpdate24 // todo25 cloneChildFibers(wipFiber);26 return;27 }28 instance.props = wipFiber.props;29 instance.state = Object.assign({}, instance.state, wipFiber.partialState);30 wipFiber.partialState = null;31 const newChildElements = wipFiber.stateNode.render();32 reconcileChildrenArray(wipFiber, newChildElements);...
step9.js
Source:step9.js
1/**2 * 3 * @param {*} wipFiber work-in-progress fiber4 */5const cloneChildFibers = (wipFiber) => {6 const oldFiber = wipFiber.alternate;7 if(!oldFiber.child) {8 return;9 }10 let oldChild = oldFiber.child;11 let prevChild = null;12 while(oldChild) {13 const newChild = {14 tag: oldChild.tag,15 type: oldChild.type,16 props: oldChild.props,17 stateNode: oldChild.stateNode,18 partialState: oldChild.partialState,19 alternate: oldChild,20 parent: wipFiber,21 };22 if(prevChild) {23 prevChild.sibling = newChild;24 } else {25 wipFiber.child = newChild;26 }27 prevChild = newChild;28 oldChild = oldChild.sibling;29 }...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch({ headless: false });4 const context = await browser.newContext();5 const page = await context.newPage();6 const originalElement = await page.$('button');7 const clonedElement = await originalElement._page._delegate.cloneChildFibers(originalElement);8 console.log('Original Element: ', originalElement);9 console.log('Cloned Element: ', clonedElement);10 await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14 const browser = await chromium.launch({ headless: false });15 const context = await browser.newContext();16 const page = await context.newPage();17 const originalElement = await page.$('button');18 const clonedElement = await originalElement._page._delegate.cloneChildFibers(originalElement);19 const newPage = await context.newPage();20 await newPage.setContent('<div id="container"></div>');21 await newPage.$eval('#container', (el, clonedElement) => {22 el.append(clonedElement);23 }, clonedElement);24 await browser.close();25})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const frame = page.mainFrame();7 const childFrame = await frame.childFrames()[0];8 const childFrame2 = await childFrame.childFrames()[0];9 const childFrame3 = await childFrame2.childFrames()[0];10 const childFrame4 = await childFrame3.childFrames()[0];11 const childFrame5 = await childFrame4.childFrames()[0];12 const childFrame6 = await childFrame5.childFrames()[0];13 const childFrame7 = await childFrame6.childFrames()[0];14 const childFrame8 = await childFrame7.childFrames()[0];15 const childFrame9 = await childFrame8.childFrames()[0];16 const childFrame10 = await childFrame9.childFrames()[0];17 const childFrame11 = await childFrame10.childFrames()[0];18 const childFrame12 = await childFrame11.childFrames()[0];19 const childFrame13 = await childFrame12.childFrames()[0];20 const childFrame14 = await childFrame13.childFrames()[0];21 const childFrame15 = await childFrame14.childFrames()[0];22 const childFrame16 = await childFrame15.childFrames()[0];23 const childFrame17 = await childFrame16.childFrames()[0];24 const childFrame18 = await childFrame17.childFrames()[0];25 const childFrame19 = await childFrame18.childFrames()[0];26 const childFrame20 = await childFrame19.childFrames()[0];27 const childFrame21 = await childFrame20.childFrames()[0];28 const childFrame22 = await childFrame21.childFrames()[0];29 const childFrame23 = await childFrame22.childFrames()[0];30 const childFrame24 = await childFrame23.childFrames()[0];31 const childFrame25 = await childFrame24.childFrames()[0];32 const childFrame26 = await childFrame25.childFrames()[0];33 const childFrame27 = await childFrame26.childFrames()[0];34 const childFrame28 = await childFrame27.childFrames()[0];35 const childFrame29 = await childFrame28.childFrames()[0];36 const childFrame30 = await childFrame29.childFrames()[0];
Using AI Code Generation
1const { Playwright } = require("playwright");2const { chromium } = require("playwright");3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const handle = await page.evaluateHandle(() => document.body);8 const clonedHandle = await handle._context._cloneChildFibers(handle);9 console.log(await clonedHandle.evaluate((body) => body.innerHTML));10 await browser.close();11})();
Using AI Code Generation
1const { Page } = require('playwright/lib/server/page');2const { Frame } = require('playwright/lib/server/frame');3const { ElementHandle } = require('playwright/lib/server/elementHandler');4Page.prototype.cloneChildFibers = function () {5 const clonedChildFibers = new Map();6 for (const [child, fiber] of this._childFibers) {7 clonedChildFibers.set(child, fiber);8 }9 return clonedChildFibers;10};11Frame.prototype.cloneChildFibers = function () {12 const clonedChildFibers = new Map();13 for (const [child, fiber] of this._childFibers) {14 clonedChildFibers.set(child, fiber);15 }16 return clonedChildFibers;17};18ElementHandle.prototype.cloneChildFibers = function () {19 const clonedChildFibers = new Map();20 for (const [child, fiber] of this._childFibers) {21 clonedChildFibers.set(child, fiber);22 }23 return clonedChildFibers;24};
Using AI Code Generation
1const { chromium } = require('playwright');2const {cloneChildFibers} = require('playwright/lib/server/fiber.js');3(async () => {4 const browser = await chromium.launch();5 const page = await browser.newPage();6 const context = await page.context();7 const frame = page.mainFrame();8 const clonedFrame = cloneChildFibers(frame);9 await browser.close();10})();
Using AI Code Generation
1const { chromium } = require('playwright');2const { PlaywrightInternal } = require('playwright/lib/client/playwright');3const { Frame } = require('playwright/lib/client/frame');4const { Page } = require('playwright/lib/client/page');5const { ElementHandle } = require('playwright/lib/client/elementHandler');6const { JSHandle } = require('playwright/lib/client/jsHandle');7const { CDPSession } = require('playwright/lib/client/cjs/pw');8const { helper } = require('playwright/lib/helper');9(async () => {10 const browser = await chromium.launch();11 const context = await browser.newContext();12 const page = await context.newPage();13 const internal = new PlaywrightInternal();14 await internal.initOnContext(context);15 await internal.initOnPage(page);16 const frame = page.mainFrame();17 const frameInternal = new Frame(internal, frame._delegate);18 await frameInternal._initializeInternal();19 const handle = await frame.$('#input');20 const handleInternal = new ElementHandle(frameInternal, handle._delegate);21 await handleInternal._initializeInternal();22 const clonedHandle = await handleInternal.cloneChildFibers();23 const clonedHandleInternal = new JSHandle(frameInternal, clonedHandle._delegate);24 await clonedHandleInternal._initializeInternal();25 const element = await clonedHandleInternal.asElement();26 const elementInternal = new ElementHandle(frameInternal, element._delegate);27 await elementInternal._initializeInternal();28 await elementInternal.evaluate((element) => {29 element.value = 'Hello World';30 });31 await browser.close();32})();
Using AI Code Generation
1const { Playwright } = require('playwright-core');2const { Internal } = require('playwright-core/lib/server/playwright');3const { BrowserContext } = require('playwright-core/lib/server/browserContext');4const { Page } = require('playwright-core/lib/server/page');5const { Frame } = require('playwright-core/lib/server/frames');6const playwright = new Playwright();7const internal = new Internal(playwright);8const browserContext = new BrowserContext(internal, null, null, null);9const page = new Page(browserContext, null, null);10const frame = new Frame(page, null, null);11const childFrame = new Frame(page, null, null);12frame._childFrames = [childFrame];13frame.cloneChildFibers();14console.log(frame._childFrames[0]._fingerprint);
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- Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
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