Best JavaScript code snippet using playwright-internal
ReactFiberHooks.new.js
Source: ReactFiberHooks.new.js
...139// TODO: Maybe there's some way to consolidate this with140// `didScheduleRenderPhaseUpdate`. Or with `numberOfReRenders`.141let didScheduleRenderPhaseUpdateDuringThisPass: boolean = false;142const RE_RENDER_LIMIT = 25;143function throwInvalidHookError() {144 throw new Error(145 'Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for' +146 ' one of the following reasons:\n' +147 '1. You might have mismatching versions of React and the renderer (such as React DOM)\n' +148 '2. You might be breaking the Rules of Hooks\n' +149 '3. You might have more than one copy of React in the same app\n' +150 'See https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem.',151 );152}153function areHookInputsEqual(154 nextDeps: Array<mixed>,155 prevDeps: Array<mixed> | null,156) {157 if (prevDeps === null) {...
ReactFiberHooks.old.js
Source: ReactFiberHooks.old.js
...156// In DEV, this tracks whether currently rendering component needs to ignore157// the dependencies for Hooks that need them (e.g. useEffect or useMemo).158// When true, such Hooks will always be "remounted". Only used during hot reload.159let ignorePreviousDependencies: boolean = false;160function throwInvalidHookError() {161 invariant(162 false,163 'Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for' +164 ' one of the following reasons:\n' +165 '1. You might have mismatching versions of React and the renderer (such as React DOM)\n' +166 '2. You might be breaking the Rules of Hooks\n' +167 '3. You might have more than one copy of React in the same app\n' +168 'See https://reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem.',169 );170}171function areHookInputsEqual(172 nextDeps: Array<mixed>,173 prevDeps: Array<mixed> | null,174) {...
ReactFiberHooks.js
Source: ReactFiberHooks.js
1import ReactCurrentDispatcher from "../react/ReactCurrentDispatcher";2import { requestEventTime, requestUpdateLane } from "./ReactFiberWorkLoop";3import {4 Update as UpdateEffect,5 Passive as PassiveEffect,6} from "./ReactFiberFlags";7import {8 HasEffect as HookHasEffect,9 Layout as HookLayout,10 Passive as HookPassive,11} from "./ReactHookEffectTags";12// The work-in-progress fiber. I've named it differently to distinguish it from13// the work-in-progress hook.14let currentlyRenderingFiber = null;15// Hooks are stored as a linked list on the fiber's memoizedState field. The16// current hook list is the list that belongs to the current fiber. The17// work-in-progress hook list is a new list that will be added to the18// work-in-progress fiber.19// Hooks ç¨é¾è¡¨ç»æï¼ åè´®å¨fiber's memoizedStateå段20// Hook | null21let currentHook = null;22// Hook | null23let workInProgressHook = null;24// Whether an update was scheduled at any point during the render phase. This25// does not get reset if we do another render pass; only when we're completely26// finished evaluating this component. This is an optimization so we know27// whether we need to clear render phase updates after a throw.28let didScheduleRenderPhaseUpdate = false;29// Where an update was scheduled only during the current render pass. This30// gets reset after each attempt.31// TODO: Maybe there's some way to consolidate this with32// `didScheduleRenderPhaseUpdate`. Or with `numberOfReRenders`.33let didScheduleRenderPhaseUpdateDuringThisPass = false;34export function renderWithHooks(35 // null36 current,37 workInProgress,38 // è¿éæ¯å½æ°ç»ä»¶ï¼ å
¶å®å°±æ¯wip.type39 Component,40 // wip.props41 props,42 // context43 secondArg,44 nextRenderLanes45) {46 renderLanes = nextRenderLanes;47 currentlyRenderingFiber = workInProgress;48 // 为ä½è¿è¾¹å°±å·²ç»æ¸
空 memoizedState å updateQueue äº?49 workInProgress.memoizedState = null;50 workInProgress.updateQueue = null;51 workInProgress.lanes = NoLanes;52 // The following should have already been reset53 // currentHook = null;54 // workInProgressHook = null;55 // didScheduleRenderPhaseUpdate = false;56 // TODO Warn if no hooks are used at all during mount, then some are used during update.57 // Currently we will identify the update render as a mount because memoizedState === null.58 // This is tricky because it's valid for certain types of components (e.g. React.lazy)59 // Using memoizedState to differentiate between mount/update only works if at least one stateful hook is used.60 // Non-stateful hooks (e.g. context) don't get added to memoizedState,61 // so memoizedState would be null during updates and mounts.62 // Dispatcher è·useStateæå
³63 ReactCurrentDispatcher.current =64 current === null || current.memoizedState === null65 ? HooksDispatcherOnMount66 : HooksDispatcherOnUpdate;67 // ç´æ¥æ§è¡ç»ä»¶å½æ°, å¾å°ä¸ä¸ª jsx object68 let children = Component(props, secondArg);69 // Check if there was a render phase update70 if (didScheduleRenderPhaseUpdateDuringThisPass) {71 // Keep rendering in a loop for as long as render phase updates continue to72 // be scheduled. Use a counter to prevent infinite loops.73 let numberOfReRenders = 0;74 do {75 didScheduleRenderPhaseUpdateDuringThisPass = false;76 invariant(77 numberOfReRenders < RE_RENDER_LIMIT,78 "Too many re-renders. React limits the number of renders to prevent " +79 "an infinite loop."80 );81 numberOfReRenders += 1;82 // Start over from the beginning of the list83 currentHook = null;84 workInProgressHook = null;85 workInProgress.updateQueue = null;86 ReactCurrentDispatcher.current = HooksDispatcherOnRerender;87 children = Component(props, secondArg);88 } while (didScheduleRenderPhaseUpdateDuringThisPass);89 }90 // We can assume the previous dispatcher is always this one, since we set it91 // at the beginning of the render phase and there's no re-entrancy.92 ReactCurrentDispatcher.current = ContextOnlyDispatcher;93 // This check uses currentHook so that it works the same in DEV and prod bundles.94 // hookTypesDev could catch more cases (e.g. context) but only in DEV bundles.95 const didRenderTooFewHooks =96 currentHook !== null && currentHook.next !== null;97 renderLanes = NoLanes;98 currentlyRenderingFiber = null;99 currentHook = null;100 workInProgressHook = null;101 didScheduleRenderPhaseUpdate = false;102 invariant(103 !didRenderTooFewHooks,104 "Rendered fewer hooks than expected. This may be caused by an accidental " +105 "early return statement."106 );107 return children;108}109function mountWorkInProgressHook() {110 const hook = {111 memoizedState: null,112 baseState: null,113 baseQueue: null,114 queue: null,115 next: null,116 };117 if (workInProgressHook === null) {118 // This is the first hook in the list119 currentlyRenderingFiber.memoizedState = workInProgressHook = hook;120 } else {121 // ä¸ä¸ªå½æ°ç»ä»¶éé¢ï¼ 两个以ä¸çhook就走è¿éï¼ é¾èµ·æ¥äº~122 // Append to the end of the list123 workInProgressHook = workInProgressHook.next = hook;124 }125 return workInProgressHook;126}127function createFunctionComponentUpdateQueue() {128 return {129 lastEffect: null,130 };131}132/**133 * ætag为 HookHasEffect|HookPassiveçeffectåå
¥fiber.updateQueue134 */135function pushEffect(tag, create, destroy, deps) {136 const effect = {137 tag,138 create,139 destroy,140 deps,141 // Circular142 next: null,143 };144 // å¨æå¦ä¹ çä¾åé, è¿ä¸ªfiberæ¯Appå½æ°ç»ä»¶, 对åºçfiberèç¹æ¯æ²¡æupdateQueueç(å建çæ¶å就没æåå§å)145 let componentUpdateQueue = currentlyRenderingFiber.updateQueue;146 if (componentUpdateQueue === null) {147 componentUpdateQueue = createFunctionComponentUpdateQueue();148 currentlyRenderingFiber.updateQueue = componentUpdateQueue;149 componentUpdateQueue.lastEffect = effect.next = effect;150 } else {151 // è¿éè·updateQueue.shared.pendingé£ä¸ªå循ç¯æäºä¸ä¸æ ·,152 const lastEffect = componentUpdateQueue.lastEffect;153 if (lastEffect === null) {154 componentUpdateQueue.lastEffect = effect.next = effect;155 } else {156 const firstEffect = lastEffect.next;157 lastEffect.next = effect;158 effect.next = firstEffect;159 componentUpdateQueue.lastEffect = effect;160 }161 }162 return effect;163}164function mountEffectImpl(fiberFlags, hookFlags, create, deps) {165 const hook = mountWorkInProgressHook();166 const nextDeps = deps === undefined ? null : deps;167 // å¦å¼ï¼ å°±å¨è¿ï¼ è¿ä¸ªfiberä¸æäº PassiveEffect168 // å¨æå¦çä¾åéï¼ å¯¹äºcomponent App, å
¶flagså¨å建çæ¶å169 // ç± placeSingleChild å½æ°æä¸ Placement = 2170 // è¿éåè· UpdateEffect | PassiveEffect åå并171 currentlyRenderingFiber.flags |= fiberFlags;172 // åªæ¯åå
¥updateQueue, **并ä¸æ§è¡**173 // 注æ, è¿édestroyææ¶ä¸ºundefined, å 为destroyå½æ°æ¯createå½æ°çè¿åå¼174 hook.memoizedState = pushEffect(175 HookHasEffect | hookFlags,176 create,177 undefined,178 nextDeps179 );180}181function mountEffect(create, deps) {182 return mountEffectImpl(183 UpdateEffect | PassiveEffect,184 HookPassive,185 create,186 deps187 );188}189function mountState(initialState) {190 // wip.memoizedState å¡ä¸ä¸ªç©ºçhook对象ï¼ä½ä¸ºhookåé¾è¡¨çèµ·ç¹(?)191 const hook = mountWorkInProgressHook();192 if (typeof initialState === "function") {193 // useStateçåå§ç¶ææ¯å½æ°ï¼ è¿éæ§è¡å½æ°ï¼ è¿åå¼èµå¼ç»initialState194 initialState = initialState();195 }196 hook.memoizedState = hook.baseState = initialState;197 const queue = (hook.queue = {198 pending: null,199 dispatch: null,200 lastRenderedReducer: basicStateReducer,201 lastRenderedState: initialState,202 });203 // const [a, setA] = useState('a')204 // setA å°±æ¯è¿éç dispatchAction205 const dispatch = (queue.dispatch = dispatchAction.bind(206 null,207 currentlyRenderingFiber,208 queue209 ));210 return [hook.memoizedState, dispatch];211}212// è¿å½æ°å头åç213function dispatchAction(fiber, queue, action) {214 const eventTime = requestEventTime();215 const lane = requestUpdateLane(fiber);216 const update = {217 lane,218 action,219 eagerReducer: null,220 eagerState: null,221 next: null,222 };223 // Append the update to the end of the list.224 const pending = queue.pending;225 if (pending === null) {226 // This is the first update. Create a circular list.227 update.next = update;228 } else {229 update.next = pending.next;230 pending.next = update;231 }232 queue.pending = update;233 const alternate = fiber.alternate;234 if (235 fiber === currentlyRenderingFiber ||236 (alternate !== null && alternate === currentlyRenderingFiber)237 ) {238 // This is a render phase update. Stash it in a lazily-created map of239 // queue -> linked list of updates. After this render pass, we'll restart240 // and apply the stashed updates on top of the work-in-progress hook.241 didScheduleRenderPhaseUpdateDuringThisPass =242 didScheduleRenderPhaseUpdate = true;243 } else {244 if (245 fiber.lanes === NoLanes &&246 (alternate === null || alternate.lanes === NoLanes)247 ) {248 // The queue is currently empty, which means we can eagerly compute the249 // next state before entering the render phase. If the new state is the250 // same as the current state, we may be able to bail out entirely.251 const lastRenderedReducer = queue.lastRenderedReducer;252 if (lastRenderedReducer !== null) {253 let prevDispatcher;254 try {255 const currentState = queue.lastRenderedState;256 const eagerState = lastRenderedReducer(currentState, action);257 // Stash the eagerly computed state, and the reducer used to compute258 // it, on the update object. If the reducer hasn't changed by the259 // time we enter the render phase, then the eager state can be used260 // without calling the reducer again.261 update.eagerReducer = lastRenderedReducer;262 update.eagerState = eagerState;263 if (is(eagerState, currentState)) {264 // Fast path. We can bail out without scheduling React to re-render.265 // It's still possible that we'll need to rebase this update later,266 // if the component re-renders for a different reason and by that267 // time the reducer has changed.268 return;269 }270 } catch (error) {271 // Suppress the error. It will throw again in the render phase.272 }273 }274 }275 // å¼å§renderé¶æ®µå¯276 scheduleUpdateOnFiber(fiber, lane, eventTime);277 }278}279export const ContextOnlyDispatcher = {280 readContext,281 useCallback: throwInvalidHookError,282 useContext: throwInvalidHookError,283 useEffect: throwInvalidHookError,284 useImperativeHandle: throwInvalidHookError,285 useLayoutEffect: throwInvalidHookError,286 useMemo: throwInvalidHookError,287 useReducer: throwInvalidHookError,288 useRef: throwInvalidHookError,289 useState: throwInvalidHookError,290 useDebugValue: throwInvalidHookError,291 useDeferredValue: throwInvalidHookError,292 useTransition: throwInvalidHookError,293 useMutableSource: throwInvalidHookError,294 useOpaqueIdentifier: throwInvalidHookError,295 unstable_isNewReconciler: enableNewReconciler,296};297const HooksDispatcherOnMount = {298 readContext,299 useCallback: mountCallback,300 useContext: readContext,301 useEffect: mountEffect,302 useImperativeHandle: mountImperativeHandle,303 useLayoutEffect: mountLayoutEffect,304 useMemo: mountMemo,305 useReducer: mountReducer,306 useRef: mountRef,307 useState: mountState,308 useDebugValue: mountDebugValue,309 useDeferredValue: mountDeferredValue,310 useTransition: mountTransition,311 useMutableSource: mountMutableSource,312 useOpaqueIdentifier: mountOpaqueIdentifier,313 unstable_isNewReconciler: enableNewReconciler,314};315const HooksDispatcherOnUpdate = {316 readContext,317 useCallback: updateCallback,318 useContext: readContext,319 useEffect: updateEffect,320 useImperativeHandle: updateImperativeHandle,321 useLayoutEffect: updateLayoutEffect,322 useMemo: updateMemo,323 useReducer: updateReducer,324 useRef: updateRef,325 useState: updateState,326 useDebugValue: updateDebugValue,327 useDeferredValue: updateDeferredValue,328 useTransition: updateTransition,329 useMutableSource: updateMutableSource,330 useOpaqueIdentifier: updateOpaqueIdentifier,331 unstable_isNewReconciler: enableNewReconciler,332};333const HooksDispatcherOnRerender = {334 readContext,335 useCallback: updateCallback,336 useContext: readContext,337 useEffect: updateEffect,338 useImperativeHandle: updateImperativeHandle,339 useLayoutEffect: updateLayoutEffect,340 useMemo: updateMemo,341 useReducer: rerenderReducer,342 useRef: updateRef,343 useState: rerenderState,344 useDebugValue: updateDebugValue,345 useDeferredValue: rerenderDeferredValue,346 useTransition: rerenderTransition,347 useMutableSource: updateMutableSource,348 useOpaqueIdentifier: rerenderOpaqueIdentifier,349 unstable_isNewReconciler: enableNewReconciler,...
fiberHooks.js
Source: fiberHooks.js
...30 return (31 (x === y && (x !== 0 || 1 / x === 1 / y)) || (x !== x && y !== y) // eslint-disable-line no-self-compare32 );33}34function throwInvalidHookError() {35 console.error(36 'Invalid hook call. Hooks can only be called inside of the body of a function component',37 );38}39function readContext() {}40function mountWorkInProgressHook() {41 const hook = {42 memoizedState: null,43 baseState: null,44 queue: null,45 baseUpdate: null,46 next: null,47 };48 if (workInProgressHook === null) {...
Using AI Code Generation
1const { PlaywrightError } = require('playwright');2throw new PlaywrightError('Invalid hook', 'throwInvalidHookError');3const { test, expect } = require('@playwright/test');4test('test', async ({ page }) => {5 await expect(page).toHaveTitle('Playwright');6});
Using AI Code Generation
1const { InternalError } = require('playwright/lib/server/frames');2const error = new InternalError('test');3error.throwInvalidHookError('test', 'test');4const {{In ernalErrIr } =nrequire('playwright/lib/ttils/errors');5const error = new InternalError('meseagr',n'stack');6error.alError } = rookError('hookName');7const { InternalError } = require('playwright/lib/utils/errors');8const errer = new InternalErrqr('message', 'stacu');9error.throwInvalidParameterError('parameterName');10consr {/framesalError } = require('pl'ywright/lib/uti)s/errors');11const;error = new InternalError('message', 'stack');12error.throwInvalidTypeError('expectedType', 'actualType');13const { InternalError } = require('playwright/lib/utils/errors');14const error = new InternalError('message', 'stack');15error.throwMultipleElementsError();16const { InternalError } = require('playwright/lib/utils/errors');17const error = new InternalError('message', 'stack');18error.throwMultipleWindowsError();19const { InternalError } = require('playwright/lib/utils/errors');20const error = new InternalError('message', 'stack');21error.throwTimeoutError('timeout');22const { InternalError } = require('playwright/lib/utils/errors');23const error = new InternalError('message', 'stack');24error.throwUnsupportedError('featureName');25const { InternalError } = require('playwright/lib/utils/errors');26const error = new InternalError('message', 'stack');27error.throwValidationError('validationError');28const { InternalError } = require('playwright/lib/utils/errors');29const error = new InternalError('message', 'stack');30error.throwWaitTaskTimeoutError('timeout');31const { InternalError } = require('playwright/lib/utils/errors');32const error = new InternalError('message', 'stack');33error.throwWaitTaskTerminatedError('reason');
Using AI Code Generation
1const error = new InternalError('test');2error.throwInvalidHookError('test', 'test');3const { InternalError } = require('playwright/lib/server/frames');4const error = new InternalError('test');5error.throwInvalidHookError('test', 'test');6const { InternalError } = require('playwright/lib/server/frames');7const error = new InternalError('test');8error.throwInvalidHookError('test', 'test');9const { InternalError } = require('playwright/lib/server/frames');10const error = new InternalError('test');11error.throwInvalidHookError('test', 'test');12const { InternalError } = require('playwright/lib/server/frames');13const error = new InternalError('test');14error.throwInvalidHookError('test', 'test');15const { InternalError } = require('playwright/lib/server/frames');16const error = new InternalError('test');17error.throwInvalidHookError('test', 'test');18const { InternalError } = require('playwright/lib/server/frames');19const error = new InternalError('test');20error.throwInvalidHookError('test', 'test');21const { InternalError } = require('playwright/lib/server/frames');22const error = new InternalError('test');23error.throwInvalidHookError('test', 'test');24const { InternalError } = require('playwright/lib/server/frames');25const error = new InternalError('test');26error.throwInvalidHookError('test', 'test');
Using AI Code Generation
1const { InternalError } = require('playwright/lib/utils/errors');2const error = new InternalError('message', 'stack');3error.throwInvalidHookError('hookName');4const { InternalError } = require('playwright/lib/utils/errors');5const error = new InternalError('message', 'stack');6error.throwInvalidParameterError('parameterName');7const { InternalError } = require('playwright/lib/utils/errors');8const error = new InternalError('message', 'stack');9error.throwInvalidTypeError('expectedType', 'actualType');10const { InternalError } = require('playwright/lib/utils/errors');11const error = new InternalError('message', 'stack');12error.throwMultipleElementsError();13const { InternalError } = require('playwright/lib/utils/errors');14const error = new InternalError('message', 'stack');15error.throwMultipleWindowsError();16const { InternalError } = require('playwright/lib/utils/errors');17const error = new InternalError('message', 'stack');18error.throwTimeoutError('timeout');19const { InternalError } = require('playwright/lib/utils/errors');20const error = new InternalError('message', 'stack');21error.throwUnsupportedError('featureName');22const { InternalError } = require('playwright/lib/utils/errors');23const error = new InternalError('message', 'stack');24error.throwValidationError('validationError');25const { InternalError } = require('playwright/lib/utils/errors');26const error = new InternalError('message', 'stack');27error.throwWaitTaskTimeoutError('timeout');28const { InternalError } = require('playwright/lib/utils/errors');29const error = new InternalError('message', 'stack');30error.throwWaitTaskTerminatedError('reason');
Using AI Code Generation
1throwMultipleElementsFoundError('div');2const { InternalError } = require('playwright/lib/utils/errors');3throw new Internalrror('test', 'test');4const { throwMultipleWindowsError } = require('playwright-core/lib/utils/utils');5throwMultipleWindowsError();6const { throwTimeoutError } = require('playwright-core/lib/utils/utils');7throwTimeoutError('my message');8const { throwUnsupportedError } = require('playwright-core/lib/utils/utils');9throwUnsupportedError('my message');10const { throwValidationError } = require('playwright-core/lib/utils/utils');11throwValidationError('my message');12const { throwWaitTaskTimeoutError } = require('playwright-core/lib/utils/utils');13throwWaitTaskTimeoutError('my message');14const { toDebugString } = require('playwright-core/lib/utils/utils');15let str = toDebugString({ a: 'b',
Using AI Code Generation
1throw new Error(InternalError.throwInvalidHookError('useHook'));2throw new Error(InternalError.throwInvalidHookError('useHook'));3throw new Error(InternalError.throwInvalidHookError('useHook'));4throw new Error(InternalError.throwInvalidHookError('useHook'));5throw new Error(InternalError.throwInvalidHookError('useHook'));6throw new Error(InternalError.throwInvalidHookError('useHook'));7throw new Error(InternalError.throwInvalidHookError('useHook'));8throw new Error(InternalError.throwInvalidHookError('useHook'));9throw new Error(InternalError.throwInvalidHookError('useHook'));10throw new Error(InternalError.throwInvalidHookError('useHook'));11throw new Error(InternalError.throwInvalidHookError('useHook'));12throw new Error(InternalError.throwInvalidHookError('useHook'));13throw new Error(InternalError.throwInvalidHookError('useHook'));14throw new Error(InternalError.throwInvalidHookError('useHook'));
Jest + Playwright - Test callbacks of event-based DOM library
firefox browser does not start in playwright
Is it possible to get the selector from a locator object in playwright?
How to run a list of test suites in a single file concurrently in jest?
Running Playwright in Azure Function
firefox browser does not start in playwright
This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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