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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| import { QSubscribers } from '../../util/markers'; | ||
| import type { VNode } from '../client/types'; | ||
| import { vnode_getProp } from '../client/vnode'; | ||
| import { EffectSubscriptionsProp, isSignal2, type Signal2 } from './v2-signal'; | ||
|
|
||
| export abstract class Subscriber { | ||
| $dependencies$: Subscriber[] | null = null; | ||
| } | ||
|
|
||
| export function isSubscriber(value: unknown): value is Subscriber { | ||
| return value instanceof Subscriber; | ||
| } | ||
|
|
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| export function clearVNodeDependencies(value: VNode): void { | ||
| const effects = vnode_getProp<Subscriber[]>(value, QSubscribers, null); | ||
| if (!effects) { | ||
| return; | ||
| } | ||
| for (let i = effects.length - 1; i >= 0; i--) { | ||
| const subscriber = effects[i]; | ||
| const subscriptionRemoved = clearSubscriptions(subscriber, value); | ||
| if (subscriptionRemoved) { | ||
| effects.splice(i, 1); | ||
| } | ||
| } | ||
| } | ||
|
|
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| export function clearSubscriberDependencies(value: Subscriber): void { | ||
| if (value.$dependencies$) { | ||
| for (let i = value.$dependencies$.length - 1; i >= 0; i--) { | ||
| const subscriber = value.$dependencies$[i]; | ||
| const subscriptionRemoved = clearSubscriptions(subscriber, value); | ||
| if (subscriptionRemoved) { | ||
| value.$dependencies$.splice(i, 1); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| function clearSubscriptions(subscriber: Subscriber, value: Subscriber | VNode): boolean { | ||
| if (!isSignal2(subscriber)) { | ||
| return false; | ||
| } | ||
| const effectSubscriptions = (subscriber as Signal2<unknown>).$effects$; | ||
| if (!effectSubscriptions) { | ||
| return false; | ||
| } | ||
| let subscriptionRemoved = false; | ||
| for (let i = effectSubscriptions.length - 1; i >= 0; i--) { | ||
| const effect = effectSubscriptions[i]; | ||
| if (effect[EffectSubscriptionsProp.EFFECT] === value) { | ||
| effectSubscriptions.splice(i, 1); | ||
| subscriptionRemoved = true; | ||
| } | ||
| } | ||
| return subscriptionRemoved; | ||
| } |