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How to use getEqualOrHigherPriorityLanes method in Playwright Internal
Best JavaScript code snippet using playwright-internal
ReactFiberLane.old.js
Source:ReactFiberLane.old.js 
...264 return NoLanes;265 }266 // If there are higher priority lanes, we'll include them even if they267 // are suspended.268 nextLanes = pendingLanes & getEqualOrHigherPriorityLanes(nextLanes);269 // If we're already in the middle of a render, switching lanes will interrupt270 // it and we'll lose our progress. We should only do this if the new lanes are271 // higher priority.272 if (273 wipLanes !== NoLanes &&274 wipLanes !== nextLanes &&275 // If we already suspended with a delay, then interrupting is fine. Don't276 // bother waiting until the root is complete.277 (wipLanes & suspendedLanes) === NoLanes278 ) {279 getHighestPriorityLanes(wipLanes);280 const wipLanePriority = return_highestLanePriority;281 if (nextLanePriority <= wipLanePriority) {282 return wipLanes;283 } else {284 return_highestLanePriority = nextLanePriority;285 }286 }287 // Check for entangled lanes and add them to the batch.288 //289 // A lane is said to be entangled with another when it's not allowed to render290 // in a batch that does not also include the other lane. Typically we do this291 // when multiple updates have the same source, and we only want to respond to292 // the most recent event from that source.293 //294 // Note that we apply entanglements *after* checking for partial work above.295 // This means that if a lane is entangled during an interleaved event while296 // it's already rendering, we won't interrupt it. This is intentional, since297 // entanglement is usually "best effort": we'll try our best to render the298 // lanes in the same batch, but it's not worth throwing out partially299 // completed work in order to do it.300 //301 // For those exceptions where entanglement is semantically important, like302 // useMutableSource, we should ensure that there is no partial work at the303 // time we apply the entanglement.304 const entangledLanes = root.entangledLanes;305 if (entangledLanes !== NoLanes) {306 const entanglements = root.entanglements;307 let lanes = nextLanes & entangledLanes;308 while (lanes > 0) {309 const index = pickArbitraryLaneIndex(lanes);310 const lane = 1 << index;311 nextLanes |= entanglements[index];312 lanes &= ~lane;313 }314 }315 return nextLanes;316}317export function getMostRecentEventTime(root: FiberRoot, lanes: Lanes): number {318 const eventTimes = root.eventTimes;319 let mostRecentEventTime = NoTimestamp;320 while (lanes > 0) {321 const index = pickArbitraryLaneIndex(lanes);322 const lane = 1 << index;323 const eventTime = eventTimes[index];324 if (eventTime > mostRecentEventTime) {325 mostRecentEventTime = eventTime;326 }327 lanes &= ~lane;328 }329 return mostRecentEventTime;330}331function computeExpirationTime(lane: Lane, currentTime: number) {332 // TODO: Expiration heuristic is constant per lane, so could use a map.333 getHighestPriorityLanes(lane);334 const priority = return_highestLanePriority;335 if (priority >= InputContinuousLanePriority) {336 // User interactions should expire slightly more quickly.337 //338 // NOTE: This is set to the corresponding constant as in Scheduler.js. When339 // we made it larger, a product metric in www regressed, suggesting there's340 // a user interaction that's being starved by a series of synchronous341 // updates. If that theory is correct, the proper solution is to fix the342 // starvation. However, this scenario supports the idea that expiration343 // times are an important safeguard when starvation does happen.344 //345 // Also note that, in the case of user input specifically, this will soon no346 // longer be an issue because we plan to make user input synchronous by347 // default (until you enter `startTransition`, of course.)348 //349 // If weren't planning to make these updates synchronous soon anyway, I350 // would probably make this number a configurable parameter.351 return currentTime + 250;352 } else if (priority >= TransitionPriority) {353 return currentTime + 5000;354 } else {355 // Anything idle priority or lower should never expire.356 return NoTimestamp;357 }358}359export function markStarvedLanesAsExpired(360 root: FiberRoot,361 currentTime: number,362): void {363 // TODO: This gets called every time we yield. We can optimize by storing364 // the earliest expiration time on the root. Then use that to quickly bail out365 // of this function.366 const pendingLanes = root.pendingLanes;367 const suspendedLanes = root.suspendedLanes;368 const pingedLanes = root.pingedLanes;369 const expirationTimes = root.expirationTimes;370 // Iterate through the pending lanes and check if we've reached their371 // expiration time. If so, we'll assume the update is being starved and mark372 // it as expired to force it to finish.373 let lanes = pendingLanes;374 while (lanes > 0) {375 const index = pickArbitraryLaneIndex(lanes);376 const lane = 1 << index;377 const expirationTime = expirationTimes[index];378 if (expirationTime === NoTimestamp) {379 // Found a pending lane with no expiration time. If it's not suspended, or380 // if it's pinged, assume it's CPU-bound. Compute a new expiration time381 // using the current time.382 if (383 (lane & suspendedLanes) === NoLanes ||384 (lane & pingedLanes) !== NoLanes385 ) {386 // Assumes timestamps are monotonically increasing.387 expirationTimes[index] = computeExpirationTime(lane, currentTime);388 }389 } else if (expirationTime <= currentTime) {390 // This lane expired391 root.expiredLanes |= lane;392 }393 lanes &= ~lane;394 }395}396// This returns the highest priority pending lanes regardless of whether they397// are suspended.398export function getHighestPriorityPendingLanes(root: FiberRoot) {399 return getHighestPriorityLanes(root.pendingLanes);400}401export function getLanesToRetrySynchronouslyOnError(root: FiberRoot): Lanes {402 const everythingButOffscreen = root.pendingLanes & ~OffscreenLane;403 if (everythingButOffscreen !== NoLanes) {404 return everythingButOffscreen;405 }406 if (everythingButOffscreen & OffscreenLane) {407 return OffscreenLane;408 }409 return NoLanes;410}411export function returnNextLanesPriority() {412 return return_highestLanePriority;413}414export function includesNonIdleWork(lanes: Lanes) {415 return (lanes & NonIdleLanes) !== NoLanes;416}417export function includesOnlyRetries(lanes: Lanes) {418 return (lanes & RetryLanes) === lanes;419}420export function includesOnlyTransitions(lanes: Lanes) {421 return (lanes & TransitionLanes) === lanes;422}423// To ensure consistency across multiple updates in the same event, this should424// be a pure function, so that it always returns the same lane for given inputs.425export function findUpdateLane(426 lanePriority: LanePriority,427 wipLanes: Lanes,428): Lane {429 switch (lanePriority) {430 case NoLanePriority:431 break;432 case SyncLanePriority:433 return SyncLane;434 case SyncBatchedLanePriority:435 return SyncBatchedLane;436 case InputDiscreteLanePriority: {437 const lane = pickArbitraryLane(InputDiscreteLanes & ~wipLanes);438 if (lane === NoLane) {439 // Shift to the next priority level440 return findUpdateLane(InputContinuousLanePriority, wipLanes);441 }442 return lane;443 }444 case InputContinuousLanePriority: {445 const lane = pickArbitraryLane(InputContinuousLanes & ~wipLanes);446 if (lane === NoLane) {447 // Shift to the next priority level448 return findUpdateLane(DefaultLanePriority, wipLanes);449 }450 return lane;451 }452 case DefaultLanePriority: {453 let lane = pickArbitraryLane(DefaultLanes & ~wipLanes);454 if (lane === NoLane) {455 // If all the default lanes are already being worked on, look for a456 // lane in the transition range.457 lane = pickArbitraryLane(TransitionLanes & ~wipLanes);458 if (lane === NoLane) {459 // All the transition lanes are taken, too. This should be very460 // rare, but as a last resort, pick a default lane. This will have461 // the effect of interrupting the current work-in-progress render.462 lane = pickArbitraryLane(DefaultLanes);463 }464 }465 return lane;466 }467 case TransitionPriority: // Should be handled by findTransitionLane instead468 case RetryLanePriority: // Should be handled by findRetryLane instead469 break;470 case IdleLanePriority:471 let lane = pickArbitraryLane(IdleLanes & ~wipLanes);472 if (lane === NoLane) {473 lane = pickArbitraryLane(IdleLanes);474 }475 return lane;476 default:477 // The remaining priorities are not valid for updates478 break;479 }480 invariant(481 false,482 'Invalid update priority: %s. This is a bug in React.',483 lanePriority,484 );485}486// To ensure consistency across multiple updates in the same event, this should487// be pure function, so that it always returns the same lane for given inputs.488export function findTransitionLane(wipLanes: Lanes, pendingLanes: Lanes): Lane {489 // First look for lanes that are completely unclaimed, i.e. have no490 // pending work.491 let lane = pickArbitraryLane(TransitionLanes & ~pendingLanes);492 if (lane === NoLane) {493 // If all lanes have pending work, look for a lane that isn't currently494 // being worked on.495 lane = pickArbitraryLane(TransitionLanes & ~wipLanes);496 if (lane === NoLane) {497 // If everything is being worked on, pick any lane. This has the498 // effect of interrupting the current work-in-progress.499 lane = pickArbitraryLane(TransitionLanes);500 }501 }502 return lane;503}504// To ensure consistency across multiple updates in the same event, this should505// be pure function, so that it always returns the same lane for given inputs.506export function findRetryLane(wipLanes: Lanes): Lane {507 // This is a fork of `findUpdateLane` designed specifically for Suspense508 // "retries" â a special update that attempts to flip a Suspense boundary509 // from its placeholder state to its primary/resolved state.510 let lane = pickArbitraryLane(RetryLanes & ~wipLanes);511 if (lane === NoLane) {512 lane = pickArbitraryLane(RetryLanes);513 }514 return lane;515}516function getHighestPriorityLane(lanes: Lanes) {517 return lanes & -lanes;518}519function getLowestPriorityLane(lanes: Lanes): Lane {520 // This finds the most significant non-zero bit.521 const index = 31 - clz32(lanes);522 return index < 0 ? NoLanes : 1 << index;523}524function getEqualOrHigherPriorityLanes(lanes: Lanes | Lane): Lanes {525 return (getLowestPriorityLane(lanes) << 1) - 1;526}527export function pickArbitraryLane(lanes: Lanes): Lane {528 // This wrapper function gets inlined. Only exists so to communicate that it529 // doesn't matter which bit is selected; you can pick any bit without530 // affecting the algorithms where its used. Here I'm using531 // getHighestPriorityLane because it requires the fewest operations.532 return getHighestPriorityLane(lanes);533}534function pickArbitraryLaneIndex(lanes: Lanes) {535 return 31 - clz32(lanes);536}537function laneToIndex(lane: Lane) {538 return pickArbitraryLaneIndex(lane);...
ReactFiberLane.new.js
Source:ReactFiberLane.new.js
...264 return NoLanes;265 }266 // If there are higher priority lanes, we'll include them even if they267 // are suspended.268 nextLanes = pendingLanes & getEqualOrHigherPriorityLanes(nextLanes);269 // If we're already in the middle of a render, switching lanes will interrupt270 // it and we'll lose our progress. We should only do this if the new lanes are271 // higher priority.272 if (273 wipLanes !== NoLanes &&274 wipLanes !== nextLanes &&275 // If we already suspended with a delay, then interrupting is fine. Don't276 // bother waiting until the root is complete.277 (wipLanes & suspendedLanes) === NoLanes278 ) {279 getHighestPriorityLanes(wipLanes);280 const wipLanePriority = return_highestLanePriority;281 if (nextLanePriority <= wipLanePriority) {282 return wipLanes;283 } else {284 return_highestLanePriority = nextLanePriority;285 }286 }287 // Check for entangled lanes and add them to the batch.288 //289 // A lane is said to be entangled with another when it's not allowed to render290 // in a batch that does not also include the other lane. Typically we do this291 // when multiple updates have the same source, and we only want to respond to292 // the most recent event from that source.293 //294 // Note that we apply entanglements *after* checking for partial work above.295 // This means that if a lane is entangled during an interleaved event while296 // it's already rendering, we won't interrupt it. This is intentional, since297 // entanglement is usually "best effort": we'll try our best to render the298 // lanes in the same batch, but it's not worth throwing out partially299 // completed work in order to do it.300 //301 // For those exceptions where entanglement is semantically important, like302 // useMutableSource, we should ensure that there is no partial work at the303 // time we apply the entanglement.304 const entangledLanes = root.entangledLanes;305 if (entangledLanes !== NoLanes) {306 const entanglements = root.entanglements;307 let lanes = nextLanes & entangledLanes;308 while (lanes > 0) {309 const index = pickArbitraryLaneIndex(lanes);310 const lane = 1 << index;311 nextLanes |= entanglements[index];312 lanes &= ~lane;313 }314 }315 return nextLanes;316}317export function getMostRecentEventTime(root: FiberRoot, lanes: Lanes): number {318 const eventTimes = root.eventTimes;319 let mostRecentEventTime = NoTimestamp;320 while (lanes > 0) {321 const index = pickArbitraryLaneIndex(lanes);322 const lane = 1 << index;323 const eventTime = eventTimes[index];324 if (eventTime > mostRecentEventTime) {325 mostRecentEventTime = eventTime;326 }327 lanes &= ~lane;328 }329 return mostRecentEventTime;330}331function computeExpirationTime(lane: Lane, currentTime: number) {332 // TODO: Expiration heuristic is constant per lane, so could use a map.333 getHighestPriorityLanes(lane);334 const priority = return_highestLanePriority;335 if (priority >= InputContinuousLanePriority) {336 // User interactions should expire slightly more quickly.337 //338 // NOTE: This is set to the corresponding constant as in Scheduler.js. When339 // we made it larger, a product metric in www regressed, suggesting there's340 // a user interaction that's being starved by a series of synchronous341 // updates. If that theory is correct, the proper solution is to fix the342 // starvation. However, this scenario supports the idea that expiration343 // times are an important safeguard when starvation does happen.344 //345 // Also note that, in the case of user input specifically, this will soon no346 // longer be an issue because we plan to make user input synchronous by347 // default (until you enter `startTransition`, of course.)348 //349 // If weren't planning to make these updates synchronous soon anyway, I350 // would probably make this number a configurable parameter.351 return currentTime + 250;352 } else if (priority >= TransitionPriority) {353 return currentTime + 5000;354 } else {355 // Anything idle priority or lower should never expire.356 return NoTimestamp;357 }358}359export function markStarvedLanesAsExpired(360 root: FiberRoot,361 currentTime: number,362): void {363 // TODO: This gets called every time we yield. We can optimize by storing364 // the earliest expiration time on the root. Then use that to quickly bail out365 // of this function.366 const pendingLanes = root.pendingLanes;367 const suspendedLanes = root.suspendedLanes;368 const pingedLanes = root.pingedLanes;369 const expirationTimes = root.expirationTimes;370 // Iterate through the pending lanes and check if we've reached their371 // expiration time. If so, we'll assume the update is being starved and mark372 // it as expired to force it to finish.373 let lanes = pendingLanes;374 while (lanes > 0) {375 const index = pickArbitraryLaneIndex(lanes);376 const lane = 1 << index;377 const expirationTime = expirationTimes[index];378 if (expirationTime === NoTimestamp) {379 // Found a pending lane with no expiration time. If it's not suspended, or380 // if it's pinged, assume it's CPU-bound. Compute a new expiration time381 // using the current time.382 if (383 (lane & suspendedLanes) === NoLanes ||384 (lane & pingedLanes) !== NoLanes385 ) {386 // Assumes timestamps are monotonically increasing.387 expirationTimes[index] = computeExpirationTime(lane, currentTime);388 }389 } else if (expirationTime <= currentTime) {390 // This lane expired391 root.expiredLanes |= lane;392 }393 lanes &= ~lane;394 }395}396// This returns the highest priority pending lanes regardless of whether they397// are suspended.398export function getHighestPriorityPendingLanes(root: FiberRoot) {399 return getHighestPriorityLanes(root.pendingLanes);400}401export function getLanesToRetrySynchronouslyOnError(root: FiberRoot): Lanes {402 const everythingButOffscreen = root.pendingLanes & ~OffscreenLane;403 if (everythingButOffscreen !== NoLanes) {404 return everythingButOffscreen;405 }406 if (everythingButOffscreen & OffscreenLane) {407 return OffscreenLane;408 }409 return NoLanes;410}411export function returnNextLanesPriority() {412 return return_highestLanePriority;413}414export function includesNonIdleWork(lanes: Lanes) {415 return (lanes & NonIdleLanes) !== NoLanes;416}417export function includesOnlyRetries(lanes: Lanes) {418 return (lanes & RetryLanes) === lanes;419}420export function includesOnlyTransitions(lanes: Lanes) {421 return (lanes & TransitionLanes) === lanes;422}423// To ensure consistency across multiple updates in the same event, this should424// be a pure function, so that it always returns the same lane for given inputs.425export function findUpdateLane(426 lanePriority: LanePriority,427 wipLanes: Lanes,428): Lane {429 switch (lanePriority) {430 case NoLanePriority:431 break;432 case SyncLanePriority:433 return SyncLane;434 case SyncBatchedLanePriority:435 return SyncBatchedLane;436 case InputDiscreteLanePriority: {437 const lane = pickArbitraryLane(InputDiscreteLanes & ~wipLanes);438 if (lane === NoLane) {439 // Shift to the next priority level440 return findUpdateLane(InputContinuousLanePriority, wipLanes);441 }442 return lane;443 }444 case InputContinuousLanePriority: {445 const lane = pickArbitraryLane(InputContinuousLanes & ~wipLanes);446 if (lane === NoLane) {447 // Shift to the next priority level448 return findUpdateLane(DefaultLanePriority, wipLanes);449 }450 return lane;451 }452 case DefaultLanePriority: {453 let lane = pickArbitraryLane(DefaultLanes & ~wipLanes);454 if (lane === NoLane) {455 // If all the default lanes are already being worked on, look for a456 // lane in the transition range.457 lane = pickArbitraryLane(TransitionLanes & ~wipLanes);458 if (lane === NoLane) {459 // All the transition lanes are taken, too. This should be very460 // rare, but as a last resort, pick a default lane. This will have461 // the effect of interrupting the current work-in-progress render.462 lane = pickArbitraryLane(DefaultLanes);463 }464 }465 return lane;466 }467 case TransitionPriority: // Should be handled by findTransitionLane instead468 case RetryLanePriority: // Should be handled by findRetryLane instead469 break;470 case IdleLanePriority:471 let lane = pickArbitraryLane(IdleLanes & ~wipLanes);472 if (lane === NoLane) {473 lane = pickArbitraryLane(IdleLanes);474 }475 return lane;476 default:477 // The remaining priorities are not valid for updates478 break;479 }480 invariant(481 false,482 'Invalid update priority: %s. This is a bug in React.',483 lanePriority,484 );485}486// To ensure consistency across multiple updates in the same event, this should487// be pure function, so that it always returns the same lane for given inputs.488export function findTransitionLane(wipLanes: Lanes, pendingLanes: Lanes): Lane {489 // First look for lanes that are completely unclaimed, i.e. have no490 // pending work.491 let lane = pickArbitraryLane(TransitionLanes & ~pendingLanes);492 if (lane === NoLane) {493 // If all lanes have pending work, look for a lane that isn't currently494 // being worked on.495 lane = pickArbitraryLane(TransitionLanes & ~wipLanes);496 if (lane === NoLane) {497 // If everything is being worked on, pick any lane. This has the498 // effect of interrupting the current work-in-progress.499 lane = pickArbitraryLane(TransitionLanes);500 }501 }502 return lane;503}504// To ensure consistency across multiple updates in the same event, this should505// be pure function, so that it always returns the same lane for given inputs.506export function findRetryLane(wipLanes: Lanes): Lane {507 // This is a fork of `findUpdateLane` designed specifically for Suspense508 // "retries" â a special update that attempts to flip a Suspense boundary509 // from its placeholder state to its primary/resolved state.510 let lane = pickArbitraryLane(RetryLanes & ~wipLanes);511 if (lane === NoLane) {512 lane = pickArbitraryLane(RetryLanes);513 }514 return lane;515}516function getHighestPriorityLane(lanes: Lanes) {517 return lanes & -lanes;518}519function getLowestPriorityLane(lanes: Lanes): Lane {520 // This finds the most significant non-zero bit.521 const index = 31 - clz32(lanes);522 return index < 0 ? NoLanes : 1 << index;523}524function getEqualOrHigherPriorityLanes(lanes: Lanes | Lane): Lanes {525 return (getLowestPriorityLane(lanes) << 1) - 1;526}527export function pickArbitraryLane(lanes: Lanes): Lane {528 // This wrapper function gets inlined. Only exists so to communicate that it529 // doesn't matter which bit is selected; you can pick any bit without530 // affecting the algorithms where its used. Here I'm using531 // getHighestPriorityLane because it requires the fewest operations.532 return getHighestPriorityLane(lanes);533}534function pickArbitraryLaneIndex(lanes: Lanes) {535 return 31 - clz32(lanes);536}537function laneToIndex(lane: Lane) {538 return pickArbitraryLaneIndex(lane);...
ReactFiberLane.js
Source:ReactFiberLane.js
...141 *142 *143 * æ以è¿ä¸ªå½æ°æ¬è´¨ä¸æ¯å
æ¾å°lanesä¸å¼ä¸º1çæé«ä½ï¼ è¿ä½è®¾ç½®ä¸º0ï¼ å
¶åææä½é½è®¾ä¸º1144 */145function getEqualOrHigherPriorityLanes(lanes) {146 return (getLowestPriorityLane(lanes) << 1) - 1;147}148export function createLaneMap(initial) {149 return new Array(TotalLanes).fill(initial);150}151export function mergeLanes(a, b) {152 return a | b;153}154function pickArbitraryLaneIndex(lanes) {155 return 31 - Math.clz32(lanes);156}157function laneToIndex(lane) {158 return pickArbitraryLaneIndex(lane);159}160export function includesSomeLane(a, b) {161 return (a & b) !== NoLanes;162}163export function markRootUpdated(root, updateLane, eventTime) {164 // å½åæ´æ°çlaneï¼ ä¸fiber root node.pendingLaneså段merge165 root.pendingLanes |= updateLane;166 // TODO: Theoretically, any update to any lane can unblock any other lane. But167 // it's not practical to try every single possible combination. We need a168 // heuristic to decide which lanes to attempt to render, and in which batches.169 // For now, we use the same heuristic as in the old ExpirationTimes model:170 // retry any lane at equal or lower priority, but don't try updates at higher171 // priority without also including the lower priority updates. This works well172 // when considering updates across different priority levels, but isn't173 // sufficient for updates within the same priority, since we want to treat174 // those updates as parallel.175 // Unsuspend any update at equal or lower priority.176 // 对äº177 // ä»»ä½ [suspend] çï¼ [ä¼å
级æ¯å½åupdateLaneä½ææå¹³]çupdate178 // è¿éä¼åæ¶ä»ä»¬çæåç¶æï¼179 const higherPriorityLanes = updateLane - 1; // Turns 0b1000 into 0b0111180 // è¿éè¿æ¯ä¸æï¼ å
³äºlaneçæä½ä¸ï¼ æä½æçé»è¾è¿ç®181 // 太æ½è±¡äº...182 root.suspendedLanes &= higherPriorityLanes;183 root.pingedLanes &= higherPriorityLanes;184 const eventTimes = root.eventTimes;185 const index = laneToIndex(updateLane);186 // We can always overwrite an existing timestamp because we prefer the most187 // recent event, and we assume time is monotonically increasingï¼åè°éå¢ï¼.188 eventTimes[index] = eventTime;189}190export function getNextLanes(root, wipLanes) {191 // é¦æ¬¡æ¸²ææ¶ï¼ å¨æ¬æ件27è¡ï¼ 设置äºrootä¸çpendingLanes为1192 const pendingLanes = root.pendingLanes;193 // Early bailout if there's no pending work left.194 if (pendingLanes === NoLanes) {195 return_highestLanePriority = NoLanePriority;196 return NoLanes;197 }198 let nextLanes = NoLanes;199 let nextLanePriority = NoLanePriority;200 // å次渲ææ¶ï¼ 以ä¸å 个laneså为0201 const expiredLanes = root.expiredLanes;202 const suspendedLanes = root.suspendedLanes;203 const pingedLanes = root.pingedLanes;204 // Check if any work has expired.205 // å¦ææè¿æçlaneï¼ ä¸ä¸ä¸ªlaneå³ä¸ºè¿ä¸ªè¿æçlaneï¼ ä¸ä¸ä¸ªlaneä¼å
级就æ¯åæ¥laneä¼å
级 = 15206 // å次渲ææ¶ä¸åºè¯¥æè¿ælanes207 if (expiredLanes !== NoLanes) {208 nextLanes = expiredLanes;209 nextLanePriority = return_highestLanePriority = SyncLanePriority;210 } else {211 // Do not work on any idle work until all the non-idle work has finished,212 // even if the work is suspended.213 // æä½ä¸è¿ç®ååºæææ£å¨è¿è¡ä¸çï¼ ä¸ä¸å¨idle lanesä¸çlanes214 const nonIdlePendingLanes = pendingLanes & NonIdleLanes;215 if (nonIdlePendingLanes !== NoLanes) {216 // å¦æåå¨å·¥ä½217 // è·æä½ååçsuspendedLanesæä½ä¸è¿ç®ï¼ ä¹å°±æ¯ä»éidleä»»å¡ä¸åè¿æ»¤ææææèµ·çlanes218 const nonIdleUnblockedLanes = nonIdlePendingLanes & ~suspendedLanes;219 if (nonIdleUnblockedLanes !== NoLanes) {220 // æ£å¦åéåæ示çï¼ ç°å¨çlanesæ¯ææçéidleï¼ éblockedçlanesäº221 // getHighestPriorityLanes使ç¨ä¸ç³»åifï¼ æ¾å°å¨è¿äºlanesä¸ï¼ ä¼å
级æé«çlanes222 // SyncLane > SyncBatchedLane > InputDiscreteHydrationLane > inputDiscreteLanes > ... > idleLanes > OffscreenLane223 // å次渲æåºè¯¥æ¯è¿æ¡åè·¯224 nextLanes = getHighestPriorityLanes(nonIdleUnblockedLanes);225 nextLanePriority = return_highestLanePriority;226 } else {227 // è¥ææçéidle lanesé½æ¯suspendedLanes228 const nonIdlePingedLanes = nonIdlePendingLanes & pingedLanes;229 if (nonIdlePingedLanes !== NoLanes) {230 // åçè¿äºlaneséé¢æ没æpingedLanes231 // å¦ææï¼ ä»è¿äºlanesä¸æ¾å°æé«ä¼å
级çlanes232 nextLanes = getHighestPriorityLanes(nonIdlePingedLanes);233 nextLanePriority = return_highestLanePriority;234 }235 }236 } else {237 // The only remaining work is Idle.238 // å¦æåªåå¨idle lanes239 // åä¸é¢ä¸æ ·ï¼ ä»è¿äºlaneséé¢å
éæ©ææçésuspended Lanesä¸ä¼å
级æé«çï¼240 const unblockedLanes = pendingLanes & ~suspendedLanes;241 if (unblockedLanes !== NoLanes) {242 nextLanes = getHighestPriorityLanes(unblockedLanes);243 nextLanePriority = return_highestLanePriority;244 } else {245 // è¿éæ个å°ç»èï¼ ä¸åç¨pending lanesåpinged lanesåæä½ä¸äº246 // å
¶å®å°äºè¿ä¸ªåæ¯ï¼ æ们已ç»å¯ä»¥å¤å®ï¼ å©ä¸çlanes é½æ¯ pinged lanes, æ以æ éååä¸æ¬¡ä½è¿ç®äº247 if (pingedLanes !== NoLanes) {248 nextLanes = getHighestPriorityLanes(pingedLanes);249 nextLanePriority = return_highestLanePriority;250 }251 }252 }253 }254 // åªæå¨è¢«æèµ·æ¶æä¼åºç°è¿ç§ç¶æ255 if (nextLanes === NoLanes) {256 // This should only be reachable if we're suspended257 // TODO: Consider warning in this path if a fallback timer is not scheduled.258 return NoLanes;259 }260 // If there are higher priority lanes, we'll include them even if they261 // are suspended.262 // getEqualOrHigherPriorityLanes å
å¨nextLanesä¸æ¾å°ä¼å
级æä½çlaneï¼ ç¶å左移1ä½åå1263 // é¦æ¬¡æ¸²ææ¶æ¤å¤æ²¡æå½±åï¼ ç»æä¾ç¶æ¶ nextLanes = SyncLane264 // æ¢å¥è¯è¯´ï¼ 没ææ¯SyncLaneä¼å
级æ´é«çlaneäº265 nextLanes = pendingLanes & getEqualOrHigherPriorityLanes(nextLanes);266 // If we're already in the middle of a render, switching lanes will interrupt267 // it and we'll lose our progress. We should only do this if the new lanes are268 // higher priority.269 // å次渲ææ¶ï¼ wipLanesåºè¯¥æ¯0ï¼ å 为æ¤æ¶è¿æ²¡æä»»ä½âwork in progressâå·¥ä½å270 // è¥ä¸å¨å次渲æï¼ ä¸wipLanesä¸æ¯NoLanes, è¿è¯´æç°å¨æ£å¨renderé¶æ®µ, å¦ææ¤æ¶éæ°éæ©lanesä¼å¯¼è´271 // è¿ä¸ªå¨è¿è¡çrenderå·¥ä½è¢«ææï¼ æ以æ们ä»
å½æ°çå·¥ä½ä¼å
级é«äºæ£å¨è¿è¡çå·¥ä½æ¶æéæ°éæ©lanes272 // å¦åè¿åæ£å¨è¿è¡ä¸çlanes273 if (274 wipLanes !== NoLanes &&275 wipLanes !== nextLanes &&276 // If we already suspended with a delay, then interrupting is fine. Don't277 // bother waiting until the root is complete.278 (wipLanes & suspendedLanes) === NoLanes279 ) {...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const lanes = await page._getEqualOrHigherPriorityLanes();7 console.log(lanes);8 await browser.close();9})();
Using AI Code Generation
1const { getEqualOrHigherPriorityLanes } = require('playwright/lib/utils/lanes');2const { getEqualOrHigherPriorityLanes } = require('playwright/lib/utils/lanes');3const lanes = getEqualOrHigherPriorityLanes('user-blocking');4console.log(lanes);5lanes = getEqualOrHigherPriorityLanes('normal');6console.log(lanes);7lanes = getEqualOrHigherPriorityLanes('hidden');8console.log(lanes);9lanes = getEqualOrHigherPriorityLanes('idle');10console.log(lanes);11lanes = getEqualOrHigherPriorityLanes('offscreen');12console.log(lanes);13const { getEqualOrHigherPriorityLanes } = require('playwright/lib/utils/lanes');14const lanes = getEqualOrHigherPriorityLanes('user-blocking');15console.log(lanes);16lanes = getEqualOrHigherPriorityLanes('normal');17console.log(lanes);18lanes = getEqualOrHigherPriorityLanes('hidden');19console.log(lanes);20lanes = getEqualOrHigherPriorityLanes('idle');21console.log(lanes);22lanes = getEqualOrHigherPriorityLanes('offscreen');23console.log(lanes);24const { getEqualOrHigherPriorityLanes } = require('playwright/lib/utils/lanes');25const lanes = getEqualOrHigherPriorityLanes('user-blocking');26console.log(lanes);27lanes = getEqualOrHigherPriorityLanes('normal');28console.log(lanes);
Using AI Code Generation
1const { getEqualOrHigherPriorityLanes } = require('playwright/lib/server/frames');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const frame = page.mainFrame();8 const lanes = getEqualOrHigherPriorityLanes(frame);9 console.log(lanes);10 await browser.close();11})();12[ Lane {13 _page: Page {14 _browser: Browser {15 },
Using AI Code Generation
1const playwright = require('playwright');2const { getEqualOrHigherPriorityLanes } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3const { Page } = require('playwright/lib/server/page');4const { Frame } = require('playwright/lib/server/frames');5const { JSHandle } = require('playwright/lib/server/javascript');6const { ElementHandle } = require('playwright/lib/server/elementHandler');7const { Worker } = require('playwright/lib/server/worker');8async function main() {9 const browser = await playwright.chromium.launch();10 const context = await browser.newContext();11 const page = await context.newPage();12 const frame = page.mainFrame();13 const worker = await page.evaluateHandle(() => new Worker(URL.createObjectURL(new Blob(['console.log("hi from worker")'], { type: 'application/javascript' }))));14 const handle = await frame.evaluateHandle(() => document.body);15 const elementHandle = handle.asElement();16 const lanes = getEqualOrHigherPriorityLanes(page, frame, worker, handle, elementHandle);17 console.log(lanes);18 await browser.close();19}20main();
Using AI Code Generation
1const {getEqualOrHigherPriorityLanes} = require('playwright/lib/server/supplements/recorder/recorderSupplement');2const lanes = getEqualOrHigherPriorityLanes('mouse');3console.log(lanes);4module.exports = {5 use: {6 },7}8const {getLanes} = require('playwright/lib/server/supplements/recorder/recorderSupplement');9const lanes = getLanes();10console.log(lanes);11module.exports = {12 use: {13 },14}15const {getLane} = require('playwright/lib/server/supplements/recorder/recorderSupplement');16const lane = getLane();17console.log(lane);18module.exports = {19 use: {20 },21}22const {getLanePriority
Using AI Code Generation
1const { Playwright } = require('@playwright/test');2const playwright = new Playwright({3 {4 use: {5 viewport: { width: 1280, height: 720 },6 },7 },8});9(async () => {10 const browser = await playwright.chromium.launch();11 const context = await browser.newContext();12 const page = await context.newPage();13 const lanes = await playwright._getEqualOrHigherPriorityLanes();14 console.log(lanes);15 await browser.close();16})();17const { Playwright } = require('@playwright/test');18const playwright = new Playwright({19 {20 use: {21 viewport: { width: 1280, height: 720 },22 },23 },24});25(async () => {26 const browser = await playwright.chromium.launch();27 const context = await browser.newContext();28 const page = await context.newPage();29 const lanes = await playwright._getEqualOrHigherPriorityLanes();30 console.log(lanes);31 await browser.close();32})();
Using AI Code Generation
1const { getEqualOrHigherPriorityLanes } = require("@playwright/test/lib/utils");2const { test } = require("@playwright/test");3test("test", async ({ page }) => {4 const lanes = getEqualOrHigherPriorityLanes("stable");5 console.log(lanes);6});
Using AI Code Generation
1const { getEqualOrHigherPriorityLanes } = require('playwright/lib/traceModel/schedulingLanes.js');2const fs = require('fs');3const trace = fs.readFileSync('trace.json', 'utf8');4const model = new SchedulingModel(JSON.parse(trace));5const lanes = getEqualOrHigherPriorityLanes(model.mainThread, model.mainThread.currentLane);6console.log(lanes);7const { SchedulingModel } = require('./schedulingModel.js');8const { TaskNode } = require('./taskNode.js');9const { Lane } = require('./lane.js');10const { Thread } = require('./thread.js');11const { Events } = require('./events.js');12const { assert } = require('../utils/utils.js');13const { DevtoolsSession } = require('../protocol/devtoolsSession.js');14const { helper } = require('../helper.js');15const { Events: TracingEvents } = require('../events.js');16const { createGuid } = require('../utils/utils.js');17const { Task } = require('../utils/task.js');18const { TimeoutSettings } = require('../utils/timeoutSettings.js');19const { Progress } = require('../progress.js');20const { debugError } = require('../utils/debugLogger.js');21const { assertMaxArguments } = require('../utils/utils.js');22const { ProgressController } = require('../progress.js');23const { TimeoutError } = require('../errors.js');24const { ConnectionEvents } = require('../connection.js');25const { Events: BrowserContextEvents } = require('../browserContext.js');26const { Events: PageEvents } = require('../page.js');27const { Events: WorkerEvents } = require('../worker.js');28const { Events: BrowserEvents } = require('../browser.js');29const { Events: BrowserServerEvents } = require('../browserServer.js');30const { Events: DispatcherEvents } = require('../dispatchers
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.
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