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types: improve writable computed types (#192)

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This commit is contained in:
Dmitry Sharshakov 2019-10-10 21:08:12 +03:00 committed by Evan You
parent f71d252ffe
commit 1139368dc2
1 changed files with 9 additions and 5 deletions
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14
packages/runtime-core/src/apiReactivity.ts
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@ -22,11 +22,11 @@ export {
} from '@vue/reactivity'
import {
Ref,
computed as _computed,
ComputedRef,
WritableComputedOptions,
ReactiveEffect
ReactiveEffect,
WritableComputedRef
} from '@vue/reactivity'
import { currentInstance } from './component'
@ -40,9 +40,13 @@ export function recordEffect(effect: ReactiveEffect) {
}
export function computed<T>(getter: () => T): ComputedRef<T>
export function computed<T>(options: WritableComputedOptions<T>): Ref<T>
export function computed<T>(getterOrOptions: any) {
const c = _computed(getterOrOptions)
export function computed<T>(
options: WritableComputedOptions<T>
): WritableComputedRef<T>
export function computed<T>(
getterOrOptions: (() => T) | WritableComputedOptions<T>
) {
const c = _computed(getterOrOptions as any)
recordEffect(c.effect)
return c
}