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How to use safelyCallDestroy method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactFiberCommitWork.new.js

Source:ReactFiberCommitWork.new.js

...197      ref.current = null;198    }199  }200}201export function safelyCallDestroy(202  current: Fiber,203  nearestMountedAncestor: Fiber | null,204  destroy: () => void,205) {206  if (__DEV__) {207    invokeGuardedCallback(null, destroy, null);208    if (hasCaughtError()) {209      const error = clearCaughtError();210      captureCommitPhaseError(current, nearestMountedAncestor, error);211    }212  } else {213    try {214      destroy();215    } catch (error) {216      captureCommitPhaseError(current, nearestMountedAncestor, error);217    }218  }219}220function commitBeforeMutationLifeCycles(221  current: Fiber | null,222  finishedWork: Fiber,223): void {224  switch (finishedWork.tag) {225    case FunctionComponent:226    case ForwardRef:227    case SimpleMemoComponent:228    case Block: {229      return;230    }231    case ClassComponent: {232      if (finishedWork.flags & Snapshot) {233        if (current !== null) {234          const prevProps = current.memoizedProps;235          const prevState = current.memoizedState;236          const instance = finishedWork.stateNode;237          // We could update instance props and state here,238          // but instead we rely on them being set during last render.239          // TODO: revisit this when we implement resuming.240          if (__DEV__) {241            if (242              finishedWork.type === finishedWork.elementType &&243              !didWarnAboutReassigningProps244            ) {245              if (instance.props !== finishedWork.memoizedProps) {246                console.error(247                  'Expected %s props to match memoized props before ' +248                    'getSnapshotBeforeUpdate. ' +249                    'This might either be because of a bug in React, or because ' +250                    'a component reassigns its own `this.props`. ' +251                    'Please file an issue.',252                  getComponentName(finishedWork.type) || 'instance',253                );254              }255              if (instance.state !== finishedWork.memoizedState) {256                console.error(257                  'Expected %s state to match memoized state before ' +258                    'getSnapshotBeforeUpdate. ' +259                    'This might either be because of a bug in React, or because ' +260                    'a component reassigns its own `this.state`. ' +261                    'Please file an issue.',262                  getComponentName(finishedWork.type) || 'instance',263                );264              }265            }266          }267          const snapshot = instance.getSnapshotBeforeUpdate(268            finishedWork.elementType === finishedWork.type269              ? prevProps270              : resolveDefaultProps(finishedWork.type, prevProps),271            prevState,272          );273          if (__DEV__) {274            const didWarnSet = ((didWarnAboutUndefinedSnapshotBeforeUpdate: any): Set<mixed>);275            if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) {276              didWarnSet.add(finishedWork.type);277              console.error(278                '%s.getSnapshotBeforeUpdate(): A snapshot value (or null) ' +279                  'must be returned. You have returned undefined.',280                getComponentName(finishedWork.type),281              );282            }283          }284          instance.__reactInternalSnapshotBeforeUpdate = snapshot;285        }286      }287      return;288    }289    case HostRoot: {290      if (supportsMutation) {291        if (finishedWork.flags & Snapshot) {292          const root = finishedWork.stateNode;293          clearContainer(root.containerInfo);294        }295      }296      return;297    }298    case HostComponent:299    case HostText:300    case HostPortal:301    case IncompleteClassComponent:302      // Nothing to do for these component types303      return;304  }305  invariant(306    false,307    'This unit of work tag should not have side-effects. This error is ' +308      'likely caused by a bug in React. Please file an issue.',309  );310}311function commitHookEffectListUnmount(312  tag: HookFlags,313  finishedWork: Fiber,314  nearestMountedAncestor: Fiber | null,315) {316  const updateQueue: FunctionComponentUpdateQueue | null = (finishedWork.updateQueue: any);317  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;318  if (lastEffect !== null) {319    const firstEffect = lastEffect.next;320    let effect = firstEffect;321    do {322      if ((effect.tag & tag) === tag) {323        // Unmount324        const destroy = effect.destroy;325        effect.destroy = undefined;326        if (destroy !== undefined) {327          safelyCallDestroy(finishedWork, nearestMountedAncestor, destroy);328        }329      }330      effect = effect.next;331    } while (effect !== firstEffect);332  }333}334// TODO: Remove this duplication.335function commitHookEffectListUnmount2(336  // Tags to check for when deciding whether to unmount. e.g. to skip over layout effects337  hookFlags: HookFlags,338  fiber: Fiber,339  nearestMountedAncestor: Fiber | null,340): void {341  const updateQueue: FunctionComponentUpdateQueue | null = (fiber.updateQueue: any);342  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;343  if (lastEffect !== null) {344    const firstEffect = lastEffect.next;345    let effect = firstEffect;346    do {347      const {next, tag} = effect;348      if ((tag & hookFlags) === hookFlags) {349        const destroy = effect.destroy;350        if (destroy !== undefined) {351          effect.destroy = undefined;352          if (353            enableProfilerTimer &&354            enableProfilerCommitHooks &&355            fiber.mode & ProfileMode356          ) {357            startPassiveEffectTimer();358            safelyCallDestroy(fiber, nearestMountedAncestor, destroy);359            recordPassiveEffectDuration(fiber);360          } else {361            safelyCallDestroy(fiber, nearestMountedAncestor, destroy);362          }363        }364      }365      effect = next;366    } while (effect !== firstEffect);367  }368}369function commitHookEffectListMount(tag: HookFlags, finishedWork: Fiber) {370  const updateQueue: FunctionComponentUpdateQueue | null = (finishedWork.updateQueue: any);371  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;372  if (lastEffect !== null) {373    const firstEffect = lastEffect.next;374    let effect = firstEffect;375    do {376      if ((effect.tag & tag) === tag) {377        // Mount378        const create = effect.create;379        effect.destroy = create();380        if (__DEV__) {381          const destroy = effect.destroy;382          if (destroy !== undefined && typeof destroy !== 'function') {383            let addendum;384            if (destroy === null) {385              addendum =386                ' You returned null. If your effect does not require clean ' +387                'up, return undefined (or nothing).';388            } else if (typeof destroy.then === 'function') {389              addendum =390                '\n\nIt looks like you wrote useEffect(async () => ...) or returned a Promise. ' +391                'Instead, write the async function inside your effect ' +392                'and call it immediately:\n\n' +393                'useEffect(() => {\n' +394                '  async function fetchData() {\n' +395                '    // You can await here\n' +396                '    const response = await MyAPI.getData(someId);\n' +397                '    // ...\n' +398                '  }\n' +399                '  fetchData();\n' +400                `}, [someId]); // Or [] if effect doesn't need props or state\n\n` +401                'Learn more about data fetching with Hooks: https://reactjs.org/link/hooks-data-fetching';402            } else {403              addendum = ' You returned: ' + destroy;404            }405            console.error(406              'An effect function must not return anything besides a function, ' +407                'which is used for clean-up.%s',408              addendum,409            );410          }411        }412      }413      effect = effect.next;414    } while (effect !== firstEffect);415  }416}417function invokePassiveEffectCreate(effect: HookEffect): void {418  const create = effect.create;419  effect.destroy = create();420}421// TODO: Remove this duplication.422function commitHookEffectListMount2(fiber: Fiber): void {423  const updateQueue: FunctionComponentUpdateQueue | null = (fiber.updateQueue: any);424  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;425  if (lastEffect !== null) {426    const firstEffect = lastEffect.next;427    let effect = firstEffect;428    do {429      const {next, tag} = effect;430      if (431        (tag & HookPassive) !== NoHookEffect &&432        (tag & HookHasEffect) !== NoHookEffect433      ) {434        if (__DEV__) {435          if (436            enableProfilerTimer &&437            enableProfilerCommitHooks &&438            fiber.mode & ProfileMode439          ) {440            startPassiveEffectTimer();441            invokeGuardedCallback(442              null,443              invokePassiveEffectCreate,444              null,445              effect,446            );447            recordPassiveEffectDuration(fiber);448          } else {449            invokeGuardedCallback(450              null,451              invokePassiveEffectCreate,452              null,453              effect,454            );455          }456          if (hasCaughtError()) {457            invariant(fiber !== null, 'Should be working on an effect.');458            const error = clearCaughtError();459            captureCommitPhaseError(fiber, fiber.return, error);460          }461        } else {462          try {463            const create = effect.create;464            if (465              enableProfilerTimer &&466              enableProfilerCommitHooks &&467              fiber.mode & ProfileMode468            ) {469              try {470                startPassiveEffectTimer();471                effect.destroy = create();472              } finally {473                recordPassiveEffectDuration(fiber);474              }475            } else {476              effect.destroy = create();477            }478            // TODO: This is missing the warning that exists in commitHookEffectListMount.479            // The warning refers to useEffect but only applies to useLayoutEffect.480          } catch (error) {481            invariant(fiber !== null, 'Should be working on an effect.');482            captureCommitPhaseError(fiber, fiber.return, error);483          }484        }485      }486      effect = next;487    } while (effect !== firstEffect);488  }489}490function commitProfilerPassiveEffect(491  finishedRoot: FiberRoot,492  finishedWork: Fiber,493): void {494  if (enableProfilerTimer && enableProfilerCommitHooks) {495    switch (finishedWork.tag) {496      case Profiler: {497        const {passiveEffectDuration} = finishedWork.stateNode;498        const {id, onPostCommit} = finishedWork.memoizedProps;499        // This value will still reflect the previous commit phase.500        // It does not get reset until the start of the next commit phase.501        const commitTime = getCommitTime();502        if (typeof onPostCommit === 'function') {503          if (enableSchedulerTracing) {504            onPostCommit(505              id,506              finishedWork.alternate === null ? 'mount' : 'update',507              passiveEffectDuration,508              commitTime,509              finishedRoot.memoizedInteractions,510            );511          } else {512            onPostCommit(513              id,514              finishedWork.alternate === null ? 'mount' : 'update',515              passiveEffectDuration,516              commitTime,517            );518          }519        }520        // Bubble times to the next nearest ancestor Profiler.521        // After we process that Profiler, we'll bubble further up.522        // TODO: Use JS Stack instead523        let parentFiber = finishedWork.return;524        while (parentFiber !== null) {525          if (parentFiber.tag === Profiler) {526            const parentStateNode = parentFiber.stateNode;527            parentStateNode.passiveEffectDuration += passiveEffectDuration;528            break;529          }530          parentFiber = parentFiber.return;531        }532        break;533      }534      default:535        break;536    }537  }538}539function commitLifeCycles(540  finishedRoot: FiberRoot,541  current: Fiber | null,542  finishedWork: Fiber,543  committedLanes: Lanes,544): void {545  switch (finishedWork.tag) {546    case FunctionComponent:547    case ForwardRef:548    case SimpleMemoComponent:549    case Block: {550      // At this point layout effects have already been destroyed (during mutation phase).551      // This is done to prevent sibling component effects from interfering with each other,552      // e.g. a destroy function in one component should never override a ref set553      // by a create function in another component during the same commit.554      if (555        enableProfilerTimer &&556        enableProfilerCommitHooks &&557        finishedWork.mode & ProfileMode558      ) {559        try {560          startLayoutEffectTimer();561          commitHookEffectListMount(HookLayout | HookHasEffect, finishedWork);562        } finally {563          recordLayoutEffectDuration(finishedWork);564        }565      } else {566        commitHookEffectListMount(HookLayout | HookHasEffect, finishedWork);567      }568      if ((finishedWork.subtreeFlags & PassiveMask) !== NoFlags) {569        schedulePassiveEffectCallback();570      }571      return;572    }573    case ClassComponent: {574      const instance = finishedWork.stateNode;575      if (finishedWork.flags & Update) {576        if (current === null) {577          // We could update instance props and state here,578          // but instead we rely on them being set during last render.579          // TODO: revisit this when we implement resuming.580          if (__DEV__) {581            if (582              finishedWork.type === finishedWork.elementType &&583              !didWarnAboutReassigningProps584            ) {585              if (instance.props !== finishedWork.memoizedProps) {586                console.error(587                  'Expected %s props to match memoized props before ' +588                    'componentDidMount. ' +589                    'This might either be because of a bug in React, or because ' +590                    'a component reassigns its own `this.props`. ' +591                    'Please file an issue.',592                  getComponentName(finishedWork.type) || 'instance',593                );594              }595              if (instance.state !== finishedWork.memoizedState) {596                console.error(597                  'Expected %s state to match memoized state before ' +598                    'componentDidMount. ' +599                    'This might either be because of a bug in React, or because ' +600                    'a component reassigns its own `this.state`. ' +601                    'Please file an issue.',602                  getComponentName(finishedWork.type) || 'instance',603                );604              }605            }606          }607          if (608            enableProfilerTimer &&609            enableProfilerCommitHooks &&610            finishedWork.mode & ProfileMode611          ) {612            try {613              startLayoutEffectTimer();614              instance.componentDidMount();615            } finally {616              recordLayoutEffectDuration(finishedWork);617            }618          } else {619            instance.componentDidMount();620          }621        } else {622          const prevProps =623            finishedWork.elementType === finishedWork.type624              ? current.memoizedProps625              : resolveDefaultProps(finishedWork.type, current.memoizedProps);626          const prevState = current.memoizedState;627          // We could update instance props and state here,628          // but instead we rely on them being set during last render.629          // TODO: revisit this when we implement resuming.630          if (__DEV__) {631            if (632              finishedWork.type === finishedWork.elementType &&633              !didWarnAboutReassigningProps634            ) {635              if (instance.props !== finishedWork.memoizedProps) {636                console.error(637                  'Expected %s props to match memoized props before ' +638                    'componentDidUpdate. ' +639                    'This might either be because of a bug in React, or because ' +640                    'a component reassigns its own `this.props`. ' +641                    'Please file an issue.',642                  getComponentName(finishedWork.type) || 'instance',643                );644              }645              if (instance.state !== finishedWork.memoizedState) {646                console.error(647                  'Expected %s state to match memoized state before ' +648                    'componentDidUpdate. ' +649                    'This might either be because of a bug in React, or because ' +650                    'a component reassigns its own `this.state`. ' +651                    'Please file an issue.',652                  getComponentName(finishedWork.type) || 'instance',653                );654              }655            }656          }657          if (658            enableProfilerTimer &&659            enableProfilerCommitHooks &&660            finishedWork.mode & ProfileMode661          ) {662            try {663              startLayoutEffectTimer();664              instance.componentDidUpdate(665                prevProps,666                prevState,667                instance.__reactInternalSnapshotBeforeUpdate,668              );669            } finally {670              recordLayoutEffectDuration(finishedWork);671            }672          } else {673            instance.componentDidUpdate(674              prevProps,675              prevState,676              instance.__reactInternalSnapshotBeforeUpdate,677            );678          }679        }680      }681      // TODO: I think this is now always non-null by the time it reaches the682      // commit phase. Consider removing the type check.683      const updateQueue: UpdateQueue<684        *,685      > | null = (finishedWork.updateQueue: any);686      if (updateQueue !== null) {687        if (__DEV__) {688          if (689            finishedWork.type === finishedWork.elementType &&690            !didWarnAboutReassigningProps691          ) {692            if (instance.props !== finishedWork.memoizedProps) {693              console.error(694                'Expected %s props to match memoized props before ' +695                  'processing the update queue. ' +696                  'This might either be because of a bug in React, or because ' +697                  'a component reassigns its own `this.props`. ' +698                  'Please file an issue.',699                getComponentName(finishedWork.type) || 'instance',700              );701            }702            if (instance.state !== finishedWork.memoizedState) {703              console.error(704                'Expected %s state to match memoized state before ' +705                  'processing the update queue. ' +706                  'This might either be because of a bug in React, or because ' +707                  'a component reassigns its own `this.state`. ' +708                  'Please file an issue.',709                getComponentName(finishedWork.type) || 'instance',710              );711            }712          }713        }714        // We could update instance props and state here,715        // but instead we rely on them being set during last render.716        // TODO: revisit this when we implement resuming.717        commitUpdateQueue(finishedWork, updateQueue, instance);718      }719      return;720    }721    case HostRoot: {722      // TODO: I think this is now always non-null by the time it reaches the723      // commit phase. Consider removing the type check.724      const updateQueue: UpdateQueue<725        *,726      > | null = (finishedWork.updateQueue: any);727      if (updateQueue !== null) {728        let instance = null;729        if (finishedWork.child !== null) {730          switch (finishedWork.child.tag) {731            case HostComponent:732              instance = getPublicInstance(finishedWork.child.stateNode);733              break;734            case ClassComponent:735              instance = finishedWork.child.stateNode;736              break;737          }738        }739        commitUpdateQueue(finishedWork, updateQueue, instance);740      }741      return;742    }743    case HostComponent: {744      const instance: Instance = finishedWork.stateNode;745      // Renderers may schedule work to be done after host components are mounted746      // (eg DOM renderer may schedule auto-focus for inputs and form controls).747      // These effects should only be committed when components are first mounted,748      // aka when there is no current/alternate.749      if (current === null && finishedWork.flags & Update) {750        const type = finishedWork.type;751        const props = finishedWork.memoizedProps;752        commitMount(instance, type, props, finishedWork);753      }754      return;755    }756    case HostText: {757      // We have no life-cycles associated with text.758      return;759    }760    case HostPortal: {761      // We have no life-cycles associated with portals.762      return;763    }764    case Profiler: {765      if (enableProfilerTimer) {766        const {onCommit, onRender} = finishedWork.memoizedProps;767        const {effectDuration} = finishedWork.stateNode;768        const commitTime = getCommitTime();769        if (typeof onRender === 'function') {770          if (enableSchedulerTracing) {771            onRender(772              finishedWork.memoizedProps.id,773              current === null ? 'mount' : 'update',774              finishedWork.actualDuration,775              finishedWork.treeBaseDuration,776              finishedWork.actualStartTime,777              commitTime,778              finishedRoot.memoizedInteractions,779            );780          } else {781            onRender(782              finishedWork.memoizedProps.id,783              current === null ? 'mount' : 'update',784              finishedWork.actualDuration,785              finishedWork.treeBaseDuration,786              finishedWork.actualStartTime,787              commitTime,788            );789          }790        }791        if (enableProfilerCommitHooks) {792          if (typeof onCommit === 'function') {793            if (enableSchedulerTracing) {794              onCommit(795                finishedWork.memoizedProps.id,796                current === null ? 'mount' : 'update',797                effectDuration,798                commitTime,799                finishedRoot.memoizedInteractions,800              );801            } else {802              onCommit(803                finishedWork.memoizedProps.id,804                current === null ? 'mount' : 'update',805                effectDuration,806                commitTime,807              );808            }809          }810          // Propagate layout effect durations to the next nearest Profiler ancestor.811          // Do not reset these values until the next render so DevTools has a chance to read them first.812          // TODO: Use JS Stack instead813          let parentFiber = finishedWork.return;814          while (parentFiber !== null) {815            if (parentFiber.tag === Profiler) {816              const parentStateNode = parentFiber.stateNode;817              parentStateNode.effectDuration += effectDuration;818              break;819            }820            parentFiber = parentFiber.return;821          }822        }823      }824      return;825    }826    case SuspenseComponent: {827      commitSuspenseHydrationCallbacks(finishedRoot, finishedWork);828      return;829    }830    case SuspenseListComponent:831    case IncompleteClassComponent:832    case FundamentalComponent:833    case ScopeComponent:834    case OffscreenComponent:835    case LegacyHiddenComponent:836      return;837  }838  invariant(839    false,840    'This unit of work tag should not have side-effects. This error is ' +841      'likely caused by a bug in React. Please file an issue.',842  );843}844function hideOrUnhideAllChildren(finishedWork, isHidden) {845  if (supportsMutation) {846    // We only have the top Fiber that was inserted but we need to recurse down its847    // children to find all the terminal nodes.848    let node: Fiber = finishedWork;849    while (true) {850      if (node.tag === HostComponent) {851        const instance = node.stateNode;852        if (isHidden) {853          hideInstance(instance);854        } else {855          unhideInstance(node.stateNode, node.memoizedProps);856        }857      } else if (node.tag === HostText) {858        const instance = node.stateNode;859        if (isHidden) {860          hideTextInstance(instance);861        } else {862          unhideTextInstance(instance, node.memoizedProps);863        }864      } else if (865        (node.tag === OffscreenComponent ||866          node.tag === LegacyHiddenComponent) &&867        (node.memoizedState: OffscreenState) !== null &&868        node !== finishedWork869      ) {870        // Found a nested Offscreen component that is hidden. Don't search871        // any deeper. This tree should remain hidden.872      } else if (node.child !== null) {873        node.child.return = node;874        node = node.child;875        continue;876      }877      if (node === finishedWork) {878        return;879      }880      while (node.sibling === null) {881        if (node.return === null || node.return === finishedWork) {882          return;883        }884        node = node.return;885      }886      node.sibling.return = node.return;887      node = node.sibling;888    }889  }890}891function commitAttachRef(finishedWork: Fiber) {892  const ref = finishedWork.ref;893  if (ref !== null) {894    const instance = finishedWork.stateNode;895    let instanceToUse;896    switch (finishedWork.tag) {897      case HostComponent:898        instanceToUse = getPublicInstance(instance);899        break;900      default:901        instanceToUse = instance;902    }903    // Moved outside to ensure DCE works with this flag904    if (enableScopeAPI && finishedWork.tag === ScopeComponent) {905      instanceToUse = instance;906    }907    if (typeof ref === 'function') {908      ref(instanceToUse);909    } else {910      if (__DEV__) {911        if (!ref.hasOwnProperty('current')) {912          console.error(913            'Unexpected ref object provided for %s. ' +914              'Use either a ref-setter function or React.createRef().',915            getComponentName(finishedWork.type),916          );917        }918      }919      ref.current = instanceToUse;920    }921  }922}923function commitDetachRef(current: Fiber) {924  const currentRef = current.ref;925  if (currentRef !== null) {926    if (typeof currentRef === 'function') {927      currentRef(null);928    } else {929      currentRef.current = null;930    }931  }932}933// User-originating errors (lifecycles and refs) should not interrupt934// deletion, so don't let them throw. Host-originating errors should935// interrupt deletion, so it's okay936function commitUnmount(937  finishedRoot: FiberRoot,938  current: Fiber,939  nearestMountedAncestor: Fiber,940  renderPriorityLevel: ReactPriorityLevel,941): void {942  onCommitUnmount(current);943  switch (current.tag) {944    case FunctionComponent:945    case ForwardRef:946    case MemoComponent:947    case SimpleMemoComponent:948    case Block: {949      const updateQueue: FunctionComponentUpdateQueue | null = (current.updateQueue: any);950      if (updateQueue !== null) {951        const lastEffect = updateQueue.lastEffect;952        if (lastEffect !== null) {953          const firstEffect = lastEffect.next;954          let effect = firstEffect;955          do {956            const {destroy, tag} = effect;957            if (destroy !== undefined) {958              if ((tag & HookLayout) !== NoHookEffect) {959                if (960                  enableProfilerTimer &&961                  enableProfilerCommitHooks &&962                  current.mode & ProfileMode963                ) {964                  startLayoutEffectTimer();965                  safelyCallDestroy(current, nearestMountedAncestor, destroy);966                  recordLayoutEffectDuration(current);967                } else {968                  safelyCallDestroy(current, nearestMountedAncestor, destroy);969                }970              }971            }972            effect = effect.next;973          } while (effect !== firstEffect);974        }975      }976      return;977    }978    case ClassComponent: {979      safelyDetachRef(current, nearestMountedAncestor);980      const instance = current.stateNode;981      if (typeof instance.componentWillUnmount === 'function') {982        safelyCallComponentWillUnmount(...

ReactFiberCommitWork.old.js

Source:ReactFiberCommitWork.old.js

...200      ref.current = null;201    }202  }203}204function safelyCallDestroy(current, destroy) {205  if (__DEV__) {206    invokeGuardedCallback(null, destroy, null);207    if (hasCaughtError()) {208      const error = clearCaughtError();209      captureCommitPhaseError(current, error);210    }211  } else {212    try {213      destroy();214    } catch (error) {215      captureCommitPhaseError(current, error);216    }217  }218}219function commitBeforeMutationLifeCycles(220  current: Fiber | null,221  finishedWork: Fiber,222): void {223  switch (finishedWork.tag) {224    case FunctionComponent:225    case ForwardRef:226    case SimpleMemoComponent:227    case Block: {228      return;229    }230    case ClassComponent: {231      if (finishedWork.effectTag & Snapshot) {232        if (current !== null) {233          const prevProps = current.memoizedProps;234          const prevState = current.memoizedState;235          const instance = finishedWork.stateNode;236          // We could update instance props and state here,237          // but instead we rely on them being set during last render.238          // TODO: revisit this when we implement resuming.239          if (__DEV__) {240            if (241              finishedWork.type === finishedWork.elementType &&242              !didWarnAboutReassigningProps243            ) {244              if (instance.props !== finishedWork.memoizedProps) {245                console.error(246                  'Expected %s props to match memoized props before ' +247                    'getSnapshotBeforeUpdate. ' +248                    'This might either be because of a bug in React, or because ' +249                    'a component reassigns its own `this.props`. ' +250                    'Please file an issue.',251                  getComponentName(finishedWork.type) || 'instance',252                );253              }254              if (instance.state !== finishedWork.memoizedState) {255                console.error(256                  'Expected %s state to match memoized state before ' +257                    'getSnapshotBeforeUpdate. ' +258                    'This might either be because of a bug in React, or because ' +259                    'a component reassigns its own `this.state`. ' +260                    'Please file an issue.',261                  getComponentName(finishedWork.type) || 'instance',262                );263              }264            }265          }266          const snapshot = instance.getSnapshotBeforeUpdate(267            finishedWork.elementType === finishedWork.type268              ? prevProps269              : resolveDefaultProps(finishedWork.type, prevProps),270            prevState,271          );272          if (__DEV__) {273            const didWarnSet = ((didWarnAboutUndefinedSnapshotBeforeUpdate: any): Set<mixed>);274            if (snapshot === undefined && !didWarnSet.has(finishedWork.type)) {275              didWarnSet.add(finishedWork.type);276              console.error(277                '%s.getSnapshotBeforeUpdate(): A snapshot value (or null) ' +278                  'must be returned. You have returned undefined.',279                getComponentName(finishedWork.type),280              );281            }282          }283          instance.__reactInternalSnapshotBeforeUpdate = snapshot;284        }285      }286      return;287    }288    case HostRoot:289    case HostComponent:290    case HostText:291    case HostPortal:292    case IncompleteClassComponent:293      // Nothing to do for these component types294      return;295  }296  invariant(297    false,298    'This unit of work tag should not have side-effects. This error is ' +299      'likely caused by a bug in React. Please file an issue.',300  );301}302function commitHookEffectListUnmount(tag: number, finishedWork: Fiber) {303  const updateQueue: FunctionComponentUpdateQueue | null = (finishedWork.updateQueue: any);304  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;305  if (lastEffect !== null) {306    const firstEffect = lastEffect.next;307    let effect = firstEffect;308    do {309      if ((effect.tag & tag) === tag) {310        // Unmount311        const destroy = effect.destroy;312        effect.destroy = undefined;313        if (destroy !== undefined) {314          destroy();315        }316      }317      effect = effect.next;318    } while (effect !== firstEffect);319  }320}321function commitHookEffectListMount(tag: number, finishedWork: Fiber) {322  const updateQueue: FunctionComponentUpdateQueue | null = (finishedWork.updateQueue: any);323  const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;324  if (lastEffect !== null) {325    const firstEffect = lastEffect.next;326    let effect = firstEffect;327    do {328      if ((effect.tag & tag) === tag) {329        // Mount330        const create = effect.create;331        effect.destroy = create();332        if (__DEV__) {333          const destroy = effect.destroy;334          if (destroy !== undefined && typeof destroy !== 'function') {335            let addendum;336            if (destroy === null) {337              addendum =338                ' You returned null. If your effect does not require clean ' +339                'up, return undefined (or nothing).';340            } else if (typeof destroy.then === 'function') {341              addendum =342                '\n\nIt looks like you wrote useEffect(async () => ...) or returned a Promise. ' +343                'Instead, write the async function inside your effect ' +344                'and call it immediately:\n\n' +345                'useEffect(() => {\n' +346                '  async function fetchData() {\n' +347                '    // You can await here\n' +348                '    const response = await MyAPI.getData(someId);\n' +349                '    // ...\n' +350                '  }\n' +351                '  fetchData();\n' +352                `}, [someId]); // Or [] if effect doesn't need props or state\n\n` +353                'Learn more about data fetching with Hooks: https://fb.me/react-hooks-data-fetching';354            } else {355              addendum = ' You returned: ' + destroy;356            }357            console.error(358              'An effect function must not return anything besides a function, ' +359                'which is used for clean-up.%s%s',360              addendum,361              getStackByFiberInDevAndProd(finishedWork),362            );363          }364        }365      }366      effect = effect.next;367    } while (effect !== firstEffect);368  }369}370function schedulePassiveEffects(finishedWork: Fiber) {371  if (runAllPassiveEffectDestroysBeforeCreates) {372    const updateQueue: FunctionComponentUpdateQueue | null = (finishedWork.updateQueue: any);373    const lastEffect = updateQueue !== null ? updateQueue.lastEffect : null;374    if (lastEffect !== null) {375      const firstEffect = lastEffect.next;376      let effect = firstEffect;377      do {378        const {next, tag} = effect;379        if (380          (tag & HookPassive) !== NoHookEffect &&381          (tag & HookHasEffect) !== NoHookEffect382        ) {383          enqueuePendingPassiveHookEffectUnmount(finishedWork, effect);384          enqueuePendingPassiveHookEffectMount(finishedWork, effect);385        }386        effect = next;387      } while (effect !== firstEffect);388    }389  }390}391export function commitPassiveHookEffects(finishedWork: Fiber): void {392  if ((finishedWork.effectTag & Passive) !== NoEffect) {393    switch (finishedWork.tag) {394      case FunctionComponent:395      case ForwardRef:396      case SimpleMemoComponent:397      case Block: {398        // TODO (#17945) We should call all passive destroy functions (for all fibers)399        // before calling any create functions. The current approach only serializes400        // these for a single fiber.401        if (402          enableProfilerTimer &&403          enableProfilerCommitHooks &&404          finishedWork.mode & ProfileMode405        ) {406          try {407            startPassiveEffectTimer();408            commitHookEffectListUnmount(409              HookPassive | HookHasEffect,410              finishedWork,411            );412            commitHookEffectListMount(413              HookPassive | HookHasEffect,414              finishedWork,415            );416          } finally {417            recordPassiveEffectDuration(finishedWork);418          }419        } else {420          commitHookEffectListUnmount(421            HookPassive | HookHasEffect,422            finishedWork,423          );424          commitHookEffectListMount(HookPassive | HookHasEffect, finishedWork);425        }426        break;427      }428      default:429        break;430    }431  }432}433export function commitPassiveEffectDurations(434  finishedRoot: FiberRoot,435  finishedWork: Fiber,436): void {437  if (enableProfilerTimer && enableProfilerCommitHooks) {438    // Only Profilers with work in their subtree will have an Update effect scheduled.439    if ((finishedWork.effectTag & Update) !== NoEffect) {440      switch (finishedWork.tag) {441        case Profiler: {442          const {passiveEffectDuration} = finishedWork.stateNode;443          const {id, onPostCommit} = finishedWork.memoizedProps;444          // This value will still reflect the previous commit phase.445          // It does not get reset until the start of the next commit phase.446          const commitTime = getCommitTime();447          if (typeof onPostCommit === 'function') {448            if (enableSchedulerTracing) {449              onPostCommit(450                id,451                finishedWork.alternate === null ? 'mount' : 'update',452                passiveEffectDuration,453                commitTime,454                finishedRoot.memoizedInteractions,455              );456            } else {457              onPostCommit(458                id,459                finishedWork.alternate === null ? 'mount' : 'update',460                passiveEffectDuration,461                commitTime,462              );463            }464          }465          // Bubble times to the next nearest ancestor Profiler.466          // After we process that Profiler, we'll bubble further up.467          let parentFiber = finishedWork.return;468          while (parentFiber !== null) {469            if (parentFiber.tag === Profiler) {470              const parentStateNode = parentFiber.stateNode;471              parentStateNode.passiveEffectDuration += passiveEffectDuration;472              break;473            }474            parentFiber = parentFiber.return;475          }476          break;477        }478        default:479          break;480      }481    }482  }483}484function commitLifeCycles(485  finishedRoot: FiberRoot,486  current: Fiber | null,487  finishedWork: Fiber,488  committedExpirationTime: ExpirationTime,489): void {490  switch (finishedWork.tag) {491    case FunctionComponent:492    case ForwardRef:493    case SimpleMemoComponent:494    case Block: {495      // At this point layout effects have already been destroyed (during mutation phase).496      // This is done to prevent sibling component effects from interfering with each other,497      // e.g. a destroy function in one component should never override a ref set498      // by a create function in another component during the same commit.499      if (500        enableProfilerTimer &&501        enableProfilerCommitHooks &&502        finishedWork.mode & ProfileMode503      ) {504        try {505          startLayoutEffectTimer();506          commitHookEffectListMount(HookLayout | HookHasEffect, finishedWork);507        } finally {508          recordLayoutEffectDuration(finishedWork);509        }510      } else {511        commitHookEffectListMount(HookLayout | HookHasEffect, finishedWork);512      }513      if (runAllPassiveEffectDestroysBeforeCreates) {514        schedulePassiveEffects(finishedWork);515      }516      return;517    }518    case ClassComponent: {519      const instance = finishedWork.stateNode;520      if (finishedWork.effectTag & Update) {521        if (current === null) {522          // We could update instance props and state here,523          // but instead we rely on them being set during last render.524          // TODO: revisit this when we implement resuming.525          if (__DEV__) {526            if (527              finishedWork.type === finishedWork.elementType &&528              !didWarnAboutReassigningProps529            ) {530              if (instance.props !== finishedWork.memoizedProps) {531                console.error(532                  'Expected %s props to match memoized props before ' +533                    'componentDidMount. ' +534                    'This might either be because of a bug in React, or because ' +535                    'a component reassigns its own `this.props`. ' +536                    'Please file an issue.',537                  getComponentName(finishedWork.type) || 'instance',538                );539              }540              if (instance.state !== finishedWork.memoizedState) {541                console.error(542                  'Expected %s state to match memoized state before ' +543                    'componentDidMount. ' +544                    'This might either be because of a bug in React, or because ' +545                    'a component reassigns its own `this.state`. ' +546                    'Please file an issue.',547                  getComponentName(finishedWork.type) || 'instance',548                );549              }550            }551          }552          if (553            enableProfilerTimer &&554            enableProfilerCommitHooks &&555            finishedWork.mode & ProfileMode556          ) {557            try {558              startLayoutEffectTimer();559              instance.componentDidMount();560            } finally {561              recordLayoutEffectDuration(finishedWork);562            }563          } else {564            instance.componentDidMount();565          }566        } else {567          const prevProps =568            finishedWork.elementType === finishedWork.type569              ? current.memoizedProps570              : resolveDefaultProps(finishedWork.type, current.memoizedProps);571          const prevState = current.memoizedState;572          // We could update instance props and state here,573          // but instead we rely on them being set during last render.574          // TODO: revisit this when we implement resuming.575          if (__DEV__) {576            if (577              finishedWork.type === finishedWork.elementType &&578              !didWarnAboutReassigningProps579            ) {580              if (instance.props !== finishedWork.memoizedProps) {581                console.error(582                  'Expected %s props to match memoized props before ' +583                    'componentDidUpdate. ' +584                    'This might either be because of a bug in React, or because ' +585                    'a component reassigns its own `this.props`. ' +586                    'Please file an issue.',587                  getComponentName(finishedWork.type) || 'instance',588                );589              }590              if (instance.state !== finishedWork.memoizedState) {591                console.error(592                  'Expected %s state to match memoized state before ' +593                    'componentDidUpdate. ' +594                    'This might either be because of a bug in React, or because ' +595                    'a component reassigns its own `this.state`. ' +596                    'Please file an issue.',597                  getComponentName(finishedWork.type) || 'instance',598                );599              }600            }601          }602          if (603            enableProfilerTimer &&604            enableProfilerCommitHooks &&605            finishedWork.mode & ProfileMode606          ) {607            try {608              startLayoutEffectTimer();609              instance.componentDidUpdate(610                prevProps,611                prevState,612                instance.__reactInternalSnapshotBeforeUpdate,613              );614            } finally {615              recordLayoutEffectDuration(finishedWork);616            }617          } else {618            instance.componentDidUpdate(619              prevProps,620              prevState,621              instance.__reactInternalSnapshotBeforeUpdate,622            );623          }624        }625      }626      // TODO: I think this is now always non-null by the time it reaches the627      // commit phase. Consider removing the type check.628      const updateQueue: UpdateQueue<629        *,630      > | null = (finishedWork.updateQueue: any);631      if (updateQueue !== null) {632        if (__DEV__) {633          if (634            finishedWork.type === finishedWork.elementType &&635            !didWarnAboutReassigningProps636          ) {637            if (instance.props !== finishedWork.memoizedProps) {638              console.error(639                'Expected %s props to match memoized props before ' +640                  'processing the update queue. ' +641                  'This might either be because of a bug in React, or because ' +642                  'a component reassigns its own `this.props`. ' +643                  'Please file an issue.',644                getComponentName(finishedWork.type) || 'instance',645              );646            }647            if (instance.state !== finishedWork.memoizedState) {648              console.error(649                'Expected %s state to match memoized state before ' +650                  'processing the update queue. ' +651                  'This might either be because of a bug in React, or because ' +652                  'a component reassigns its own `this.state`. ' +653                  'Please file an issue.',654                getComponentName(finishedWork.type) || 'instance',655              );656            }657          }658        }659        // We could update instance props and state here,660        // but instead we rely on them being set during last render.661        // TODO: revisit this when we implement resuming.662        commitUpdateQueue(finishedWork, updateQueue, instance);663      }664      return;665    }666    case HostRoot: {667      // TODO: I think this is now always non-null by the time it reaches the668      // commit phase. Consider removing the type check.669      const updateQueue: UpdateQueue<670        *,671      > | null = (finishedWork.updateQueue: any);672      if (updateQueue !== null) {673        let instance = null;674        if (finishedWork.child !== null) {675          switch (finishedWork.child.tag) {676            case HostComponent:677              instance = getPublicInstance(finishedWork.child.stateNode);678              break;679            case ClassComponent:680              instance = finishedWork.child.stateNode;681              break;682          }683        }684        commitUpdateQueue(finishedWork, updateQueue, instance);685      }686      return;687    }688    case HostComponent: {689      const instance: Instance = finishedWork.stateNode;690      // Renderers may schedule work to be done after host components are mounted691      // (eg DOM renderer may schedule auto-focus for inputs and form controls).692      // These effects should only be committed when components are first mounted,693      // aka when there is no current/alternate.694      if (current === null && finishedWork.effectTag & Update) {695        const type = finishedWork.type;696        const props = finishedWork.memoizedProps;697        commitMount(instance, type, props, finishedWork);698      }699      return;700    }701    case HostText: {702      // We have no life-cycles associated with text.703      return;704    }705    case HostPortal: {706      // We have no life-cycles associated with portals.707      return;708    }709    case Profiler: {710      if (enableProfilerTimer) {711        const {onCommit, onRender} = finishedWork.memoizedProps;712        const {effectDuration} = finishedWork.stateNode;713        const commitTime = getCommitTime();714        if (typeof onRender === 'function') {715          if (enableSchedulerTracing) {716            onRender(717              finishedWork.memoizedProps.id,718              current === null ? 'mount' : 'update',719              finishedWork.actualDuration,720              finishedWork.treeBaseDuration,721              finishedWork.actualStartTime,722              commitTime,723              finishedRoot.memoizedInteractions,724            );725          } else {726            onRender(727              finishedWork.memoizedProps.id,728              current === null ? 'mount' : 'update',729              finishedWork.actualDuration,730              finishedWork.treeBaseDuration,731              finishedWork.actualStartTime,732              commitTime,733            );734          }735        }736        if (enableProfilerCommitHooks) {737          if (typeof onCommit === 'function') {738            if (enableSchedulerTracing) {739              onCommit(740                finishedWork.memoizedProps.id,741                current === null ? 'mount' : 'update',742                effectDuration,743                commitTime,744                finishedRoot.memoizedInteractions,745              );746            } else {747              onCommit(748                finishedWork.memoizedProps.id,749                current === null ? 'mount' : 'update',750                effectDuration,751                commitTime,752              );753            }754          }755          // Schedule a passive effect for this Profiler to call onPostCommit hooks.756          // This effect should be scheduled even if there is no onPostCommit callback for this Profiler,757          // because the effect is also where times bubble to parent Profilers.758          enqueuePendingPassiveProfilerEffect(finishedWork);759          // Propagate layout effect durations to the next nearest Profiler ancestor.760          // Do not reset these values until the next render so DevTools has a chance to read them first.761          let parentFiber = finishedWork.return;762          while (parentFiber !== null) {763            if (parentFiber.tag === Profiler) {764              const parentStateNode = parentFiber.stateNode;765              parentStateNode.effectDuration += effectDuration;766              break;767            }768            parentFiber = parentFiber.return;769          }770        }771      }772      return;773    }774    case SuspenseComponent: {775      commitSuspenseHydrationCallbacks(finishedRoot, finishedWork);776      return;777    }778    case SuspenseListComponent:779    case IncompleteClassComponent:780    case FundamentalComponent:781    case ScopeComponent:782      return;783  }784  invariant(785    false,786    'This unit of work tag should not have side-effects. This error is ' +787      'likely caused by a bug in React. Please file an issue.',788  );789}790function hideOrUnhideAllChildren(finishedWork, isHidden) {791  if (supportsMutation) {792    // We only have the top Fiber that was inserted but we need to recurse down its793    // children to find all the terminal nodes.794    let node: Fiber = finishedWork;795    while (true) {796      if (node.tag === HostComponent) {797        const instance = node.stateNode;798        if (isHidden) {799          hideInstance(instance);800        } else {801          unhideInstance(node.stateNode, node.memoizedProps);802        }803      } else if (node.tag === HostText) {804        const instance = node.stateNode;805        if (isHidden) {806          hideTextInstance(instance);807        } else {808          unhideTextInstance(instance, node.memoizedProps);809        }810      } else if (811        node.tag === SuspenseComponent &&812        node.memoizedState !== null &&813        node.memoizedState.dehydrated === null814      ) {815        // Found a nested Suspense component that timed out. Skip over the816        // primary child fragment, which should remain hidden.817        const fallbackChildFragment: Fiber = (node.child: any).sibling;818        fallbackChildFragment.return = node;819        node = fallbackChildFragment;820        continue;821      } else if (node.child !== null) {822        node.child.return = node;823        node = node.child;824        continue;825      }826      if (node === finishedWork) {827        return;828      }829      while (node.sibling === null) {830        if (node.return === null || node.return === finishedWork) {831          return;832        }833        node = node.return;834      }835      node.sibling.return = node.return;836      node = node.sibling;837    }838  }839}840function commitAttachRef(finishedWork: Fiber) {841  const ref = finishedWork.ref;842  if (ref !== null) {843    const instance = finishedWork.stateNode;844    let instanceToUse;845    switch (finishedWork.tag) {846      case HostComponent:847        instanceToUse = getPublicInstance(instance);848        break;849      default:850        instanceToUse = instance;851    }852    // Moved outside to ensure DCE works with this flag853    if (enableScopeAPI && finishedWork.tag === ScopeComponent) {854      instanceToUse = instance.methods;855    }856    if (typeof ref === 'function') {857      ref(instanceToUse);858    } else {859      if (__DEV__) {860        if (!ref.hasOwnProperty('current')) {861          console.error(862            'Unexpected ref object provided for %s. ' +863              'Use either a ref-setter function or React.createRef().%s',864            getComponentName(finishedWork.type),865            getStackByFiberInDevAndProd(finishedWork),866          );867        }868      }869      ref.current = instanceToUse;870    }871  }872}873function commitDetachRef(current: Fiber) {874  const currentRef = current.ref;875  if (currentRef !== null) {876    if (typeof currentRef === 'function') {877      currentRef(null);878    } else {879      currentRef.current = null;880    }881  }882}883// User-originating errors (lifecycles and refs) should not interrupt884// deletion, so don't let them throw. Host-originating errors should885// interrupt deletion, so it's okay886function commitUnmount(887  finishedRoot: FiberRoot,888  current: Fiber,889  renderPriorityLevel: ReactPriorityLevel,890): void {891  onCommitUnmount(current);892  switch (current.tag) {893    case FunctionComponent:894    case ForwardRef:895    case MemoComponent:896    case SimpleMemoComponent:897    case Block: {898      const updateQueue: FunctionComponentUpdateQueue | null = (current.updateQueue: any);899      if (updateQueue !== null) {900        const lastEffect = updateQueue.lastEffect;901        if (lastEffect !== null) {902          const firstEffect = lastEffect.next;903          if (904            deferPassiveEffectCleanupDuringUnmount &&905            runAllPassiveEffectDestroysBeforeCreates906          ) {907            let effect = firstEffect;908            do {909              const {destroy, tag} = effect;910              if (destroy !== undefined) {911                if ((tag & HookPassive) !== NoHookEffect) {912                  enqueuePendingPassiveHookEffectUnmount(current, effect);913                } else {914                  if (915                    enableProfilerTimer &&916                    enableProfilerCommitHooks &&917                    current.mode & ProfileMode918                  ) {919                    startLayoutEffectTimer();920                    safelyCallDestroy(current, destroy);921                    recordLayoutEffectDuration(current);922                  } else {923                    safelyCallDestroy(current, destroy);924                  }925                }926              }927              effect = effect.next;928            } while (effect !== firstEffect);929          } else {930            // When the owner fiber is deleted, the destroy function of a passive931            // effect hook is called during the synchronous commit phase. This is932            // a concession to implementation complexity. Calling it in the933            // passive effect phase (like they usually are, when dependencies934            // change during an update) would require either traversing the935            // children of the deleted fiber again, or including unmount effects936            // as part of the fiber effect list.937            //938            // Because this is during the sync commit phase, we need to change939            // the priority.940            //941            // TODO: Reconsider this implementation trade off.942            const priorityLevel =943              renderPriorityLevel > NormalPriority944                ? NormalPriority945                : renderPriorityLevel;946            runWithPriority(priorityLevel, () => {947              let effect = firstEffect;948              do {949                const {destroy, tag} = effect;950                if (destroy !== undefined) {951                  if (952                    enableProfilerTimer &&953                    enableProfilerCommitHooks &&954                    current.mode & ProfileMode955                  ) {956                    if ((tag & HookPassive) !== NoHookEffect) {957                      safelyCallDestroy(current, destroy);958                    } else {959                      startLayoutEffectTimer();960                      safelyCallDestroy(current, destroy);961                      recordLayoutEffectDuration(current);962                    }963                  } else {964                    safelyCallDestroy(current, destroy);965                  }966                }967                effect = effect.next;968              } while (effect !== firstEffect);969            });970          }971        }972      }973      return;974    }975    case ClassComponent: {976      safelyDetachRef(current);977      const instance = current.stateNode;978      if (typeof instance.componentWillUnmount === 'function') {...

ReactFiberCommitWork.js

Source:ReactFiberCommitWork.js

...92                // Unmount93                const destroy = effect.destroy;94                effect.destroy = undefined;95                if (destroy !== undefined) {96                    safelyCallDestroy(finishedWork, nearestMountedAncestor)97                }98            }99            effect = effect.next;100        } while (effect !== firstEffect)101    }...

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  await page.close();7  await context.close();8  await browser.close();9  await browser._initializer.safelyCallDestroy();10})();

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  await browser.safelyCallDestroy();7})();

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  await page.screenshot({ path: 'google.png' });7  await page.close();8  await context.close();9  await browser.close();10})();11const { chromium } = require('playwright');12const { Internal } = require('playwright/lib/internal');13const browser = await chromium.launch();14const context = await browser.newContext();15const page = await context.newPage();16await page.screenshot({ path: 'google.png' });17Internal.safelyCallDestroy(browser);18Internal.safelyCallDestroy(context);19Internal.safelyCallDestroy(page);20Internal.safelyCallDestroy(browser);21Internal.safelyCallDestroy(context);22Internal.safelyCallDestroy(page);

Using AI Code Generation

1const { Internal } = require('playwright/lib/server/frames');2const { BrowserContext } = require('playwright/lib/server/browserContext');3const { Browser } = require('playwright/lib/server/browser');4const { Page } = require('playwright/lib/server/page');5const { Frame } = require('playwright/lib/server/frames');6const context = new BrowserContext(new Browser('chromium', null, null), {});7const page = new Page(context, null, null, null, null, null, null, null, null, null);8const frame = new Frame(page, null, null, null, null, null, null, null, null, null, null);9const internal = new Internal(frame);10const destroyPromise = internal.safelyCallDestroy();11destroyPromise.then(() => {12  console.log('Destroyed');13});14[Apache-2.0](LICENSE)

Using AI Code Generation

1const { Internal } = require('playwright/lib/server/browserType');2const internal = new Internal();3await internal.safelyCallDestroy();4const { Internal } = require('playwright/lib/server/browserType');5const internal = new Internal();6await internal.safelyCallDestroy();

Using AI Code Generation

1import { safeCallDestroy } from "playwright/lib/server/browserType"2import { chromium } from "playwright"3const browser = await chromium.launch()4const page = await browser.newPage()5await safeCallDestroy(browser)6await safeCallDestroy(page)

Using AI Code Generation

1const { Playwright } = require('playwright');2const { Internal } = require('playwright/lib/server/supplements/playwright.js');3const playwright = new Playwright();4const internal = new Internal(playwright);5const browser = await playwright.chromium.launch();6const page = await browser.newPage();7await internal.safelyCallDestroy();8await browser.close();9const { Playwright } = require('playwright');10const { Internal } = require('playwright/lib/server/supplements/playwright.js');11const playwright = new Playwright();12const internal = new Internal(playwright);13const browser = await playwright.chromium.launch();14const page = await browser.newPage();15await internal.safelyCallDestroy();16await browser.close();17const { Playwright } = require('playwright');18const { Internal } = require('playwright/lib/server/supplements/playwright.js');19const playwright = new Playwright();20const internal = new Internal(playwright);21const browser = await playwright.chromium.launch();22const page = await browser.newPage();23await internal.safelyCallDestroy();24await browser.close();25const { Playwright } = require('playwright');26const { Internal } = require('playwright/lib/server/supplements/playwright.js');27const playwright = new Playwright();28const internal = new Internal(playwright);29const browser = await playwright.chromium.launch();30const page = await browser.newPage();31await internal.safelyCallDestroy();32await browser.close();33const { Playwright } = require('playwright');34const { Internal } = require('playwright/lib/server/supplements/playwright.js');35const playwright = new Playwright();

Using AI Code Generation

1const {safeCallDestroy} = require('playwright/lib/server/browserContext');2const {createPlaywright} = require('playwright/lib/server/playwright');3const playwright = createPlaywright();4const browser = await playwright.chromium.launch();5const context = await browser.newContext();6await safeCallDestroy(context);7await safeCallDestroy(browser);8const {createPlaywright} = require('playwright/lib/server/playwright');9const playwright = createPlaywright();10const browser = await playwright.chromium.launch();11const context = await browser.newContext();12await context._browserContext._doSlowMo();13await context.close();14await browser.close();15const {safeCallDestroy} = require('playwright/lib/server/browserContext');16const {createPlaywright} = require('playwright/lib/server/playwright');17const playwright = createPlaywright();18const browser = await playwright.chromium.launch();19const context = await browser.newContext();20await safeCallDestroy(context);21await safeCallDestroy(browser);22const {createPlaywright} = require('playwright/lib/server/playwright');23const playwright = createPlaywright();24const browser = await playwright.chromium.launch();25const context = await browser.newContext();26await context._browserContext._doSlowMo();27await context.close();28await browser.close();29const {safeCallDestroy} = require('playwright/lib/server/browserContext');30const {createPlaywright} = require('playwright/lib/server/playwright');31const playwright = createPlaywright();32const browser = await playwright.chromium.launch();33const context = await browser.newContext();34await safeCallDestroy(context);35await safeCallDestroy(browser);36const {createPlaywright} = require('playwright/lib/server/playwright');37const playwright = createPlaywright();38const browser = await playwright.chromium.launch();39const context = await browser.newContext();40await context._browserContext._doSlowMo();41await context.close();42await browser.close();43const {safeCallDestroy} = require('playwright/lib/server/browserContext');44const {createPlaywright} = require('playwright/lib/server/playwright');45const playwright = createPlaywright();46const browser = await playwright.chromium.launch();47const context = await browser.newContext();48await safeCallDestroy(context);49await safeCallDestroy(browser);50const {

Using AI Code Generation

1const {Internal} = require('playwright/lib/client/transport');2const {Playwright} = require('playwright');3const playwright = new Playwright({4  firefox: require('playwright-firefox'),5  chromium: require('playwright-chromium'),6  webkit: require('playwright-webkit')7});8const browser = await playwright.chromium.launch();9Internal.safelyCallDestroy(browser);10Internal.safelyCallDestroy(playwright);11Internal.safelyCallDestroy(browser.contexts()[0]);12Internal.safelyCallDestroy(browser.contexts()[0].pages()[0]);13Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0]);14Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame());15Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0]);16Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0].childFrames()[0]);17Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0].childFrames()[0].childFrames()[0]);18Internal.safelyCallDestroy(browser.contexts()[0]);19Internal.safelyCallDestroy(browser.contexts()[0].pages()[0]);20Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0]);21Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame());22Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0]);23Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0].childFrames()[0]);24Internal.safelyCallDestroy(browser.contexts()[0].pages()[0].frames()[0].mainFrame().childFrames()[0].childFrames()[0].childFrames()[0]);

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
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.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.