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Remove LanePriority from computeExpirationTime
I'm removing all uses of LanePriority so I can delete it.
1 parent 148f8e4 commit ff71116

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2 files changed

+104
-50
lines changed

2 files changed

+104
-50
lines changed

‎packages/react-reconciler/src/ReactFiberLane.new.js‎

Lines changed: 52 additions & 25 deletions
Original file line numberDiff line numberDiff line change
@@ -428,31 +428,58 @@ export function getMostRecentEventTime(root: FiberRoot, lanes: Lanes): number {
428428
}
429429

430430
function computeExpirationTime(lane: Lane, currentTime: number) {
431-
// TODO: Expiration heuristic is constant per lane, so could use a map.
432-
getHighestPriorityLanes(lane);
433-
const priority = return_highestLanePriority;
434-
if (priority >= InputContinuousLanePriority) {
435-
// User interactions should expire slightly more quickly.
436-
//
437-
// NOTE: This is set to the corresponding constant as in Scheduler.js. When
438-
// we made it larger, a product metric in www regressed, suggesting there's
439-
// a user interaction that's being starved by a series of synchronous
440-
// updates. If that theory is correct, the proper solution is to fix the
441-
// starvation. However, this scenario supports the idea that expiration
442-
// times are an important safeguard when starvation does happen.
443-
//
444-
// Also note that, in the case of user input specifically, this will soon no
445-
// longer be an issue because we plan to make user input synchronous by
446-
// default (until you enter `startTransition`, of course.)
447-
//
448-
// If weren't planning to make these updates synchronous soon anyway, I
449-
// would probably make this number a configurable parameter.
450-
return currentTime + 250;
451-
} else if (priority >= TransitionPriority) {
452-
return currentTime + 5000;
453-
} else {
454-
// Anything idle priority or lower should never expire.
455-
return NoTimestamp;
431+
switch (lane) {
432+
case SyncLane:
433+
case InputContinuousHydrationLane:
434+
case InputContinuousLane:
435+
// User interactions should expire slightly more quickly.
436+
//
437+
// NOTE: This is set to the corresponding constant as in Scheduler.js.
438+
// When we made it larger, a product metric in www regressed, suggesting
439+
// there's a user interaction that's being starved by a series of
440+
// synchronous updates. If that theory is correct, the proper solution is
441+
// to fix the starvation. However, this scenario supports the idea that
442+
// expiration times are an important safeguard when starvation
443+
// does happen.
444+
return currentTime + 250;
445+
case DefaultHydrationLane:
446+
case DefaultLane:
447+
case TransitionHydrationLane:
448+
case TransitionLane1:
449+
case TransitionLane2:
450+
case TransitionLane3:
451+
case TransitionLane4:
452+
case TransitionLane5:
453+
case TransitionLane6:
454+
case TransitionLane7:
455+
case TransitionLane8:
456+
case TransitionLane9:
457+
case TransitionLane10:
458+
case TransitionLane11:
459+
case TransitionLane12:
460+
case TransitionLane13:
461+
case TransitionLane14:
462+
case TransitionLane15:
463+
case TransitionLane16:
464+
case RetryLane1:
465+
case RetryLane2:
466+
case RetryLane3:
467+
case RetryLane4:
468+
case RetryLane5:
469+
return currentTime + 5000;
470+
case SelectiveHydrationLane:
471+
case IdleHydrationLane:
472+
case IdleLane:
473+
case OffscreenLane:
474+
// Anything idle priority or lower should never expire.
475+
return NoTimestamp;
476+
default:
477+
if (__DEV__) {
478+
console.error(
479+
'Should have found matching lanes. This is a bug in React.',
480+
);
481+
}
482+
return NoTimestamp;
456483
}
457484
}
458485

‎packages/react-reconciler/src/ReactFiberLane.old.js‎

Lines changed: 52 additions & 25 deletions
Original file line numberDiff line numberDiff line change
@@ -428,31 +428,58 @@ export function getMostRecentEventTime(root: FiberRoot, lanes: Lanes): number {
428428
}
429429

430430
function computeExpirationTime(lane: Lane, currentTime: number) {
431-
// TODO: Expiration heuristic is constant per lane, so could use a map.
432-
getHighestPriorityLanes(lane);
433-
const priority = return_highestLanePriority;
434-
if (priority >= InputContinuousLanePriority) {
435-
// User interactions should expire slightly more quickly.
436-
//
437-
// NOTE: This is set to the corresponding constant as in Scheduler.js. When
438-
// we made it larger, a product metric in www regressed, suggesting there's
439-
// a user interaction that's being starved by a series of synchronous
440-
// updates. If that theory is correct, the proper solution is to fix the
441-
// starvation. However, this scenario supports the idea that expiration
442-
// times are an important safeguard when starvation does happen.
443-
//
444-
// Also note that, in the case of user input specifically, this will soon no
445-
// longer be an issue because we plan to make user input synchronous by
446-
// default (until you enter `startTransition`, of course.)
447-
//
448-
// If weren't planning to make these updates synchronous soon anyway, I
449-
// would probably make this number a configurable parameter.
450-
return currentTime + 250;
451-
} else if (priority >= TransitionPriority) {
452-
return currentTime + 5000;
453-
} else {
454-
// Anything idle priority or lower should never expire.
455-
return NoTimestamp;
431+
switch (lane) {
432+
case SyncLane:
433+
case InputContinuousHydrationLane:
434+
case InputContinuousLane:
435+
// User interactions should expire slightly more quickly.
436+
//
437+
// NOTE: This is set to the corresponding constant as in Scheduler.js.
438+
// When we made it larger, a product metric in www regressed, suggesting
439+
// there's a user interaction that's being starved by a series of
440+
// synchronous updates. If that theory is correct, the proper solution is
441+
// to fix the starvation. However, this scenario supports the idea that
442+
// expiration times are an important safeguard when starvation
443+
// does happen.
444+
return currentTime + 250;
445+
case DefaultHydrationLane:
446+
case DefaultLane:
447+
case TransitionHydrationLane:
448+
case TransitionLane1:
449+
case TransitionLane2:
450+
case TransitionLane3:
451+
case TransitionLane4:
452+
case TransitionLane5:
453+
case TransitionLane6:
454+
case TransitionLane7:
455+
case TransitionLane8:
456+
case TransitionLane9:
457+
case TransitionLane10:
458+
case TransitionLane11:
459+
case TransitionLane12:
460+
case TransitionLane13:
461+
case TransitionLane14:
462+
case TransitionLane15:
463+
case TransitionLane16:
464+
case RetryLane1:
465+
case RetryLane2:
466+
case RetryLane3:
467+
case RetryLane4:
468+
case RetryLane5:
469+
return currentTime + 5000;
470+
case SelectiveHydrationLane:
471+
case IdleHydrationLane:
472+
case IdleLane:
473+
case OffscreenLane:
474+
// Anything idle priority or lower should never expire.
475+
return NoTimestamp;
476+
default:
477+
if (__DEV__) {
478+
console.error(
479+
'Should have found matching lanes. This is a bug in React.',
480+
);
481+
}
482+
return NoTimestamp;
456483
}
457484
}
458485

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