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feat(reactivity): expose last result for computed getter (#9497)

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Johnson Chu 2023-10-31 22:19:40 +08:00 committed by GitHub
parent 3c828f3cfb
commit 48b47a1ab6
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1 changed files with 6 additions and 5 deletions
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11
packages/reactivity/src/computed.ts
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@ -16,8 +16,8 @@ export interface WritableComputedRef<T> extends Ref<T> {
readonly effect: ReactiveEffect<T> readonly effect: ReactiveEffect<T>
} }
export type ComputedGetter<T> = (...args: any[]) => T export type ComputedGetter<T> = (oldValue?: T) => T
export type ComputedSetter<T> = (v: T) => void export type ComputedSetter<T> = (newValue: T) => void
export interface WritableComputedOptions<T> { export interface WritableComputedOptions<T> {
get: ComputedGetter<T> get: ComputedGetter<T>
@ -41,9 +41,10 @@ export class ComputedRefImpl<T> {
isReadonly: boolean, isReadonly: boolean,
isSSR: boolean isSSR: boolean
) { ) {
this.effect = new ReactiveEffect(getter, () => { this.effect = new ReactiveEffect(
triggerRefValue(this, DirtyLevels.ComputedValueMaybeDirty) () => getter(this._value),
}) () => triggerRefValue(this, DirtyLevels.ComputedValueMaybeDirty)
)
this.effect.computed = this this.effect.computed = this
this.effect.active = this._cacheable = !isSSR this.effect.active = this._cacheable = !isSSR
this[ReactiveFlags.IS_READONLY] = isReadonly this[ReactiveFlags.IS_READONLY] = isReadonly