vue3-yuanma/packages/runtime-core/src/apiReactivity.ts

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export {
ref,
isRef,
2019-08-20 21:38:00 +08:00
toRefs,
reactive,
isReactive,
immutable,
isImmutable,
toRaw,
markImmutable,
markNonReactive,
effect,
// types
ReactiveEffect,
ReactiveEffectOptions,
DebuggerEvent,
OperationTypes,
Ref,
ComputedRef,
UnwrapRef
} from '@vue/reactivity'
import {
computed as _computed,
ComputedRef,
ComputedOptions,
ReactiveEffect
} from '@vue/reactivity'
import { currentInstance } from './component'
// record effects created during a component's setup() so that they can be
// stopped when the component unmounts
export function recordEffect(effect: ReactiveEffect) {
if (currentInstance) {
;(currentInstance.effects || (currentInstance.effects = [])).push(effect)
}
}
export function computed<T>(
getterOrOptions: (() => T) | ComputedOptions<T>
): ComputedRef<T> {
const c = _computed(getterOrOptions)
recordEffect(c.effect)
return c
}