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types(reactivity): improve typings for shallowRef (#1780)

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Carlos Rodrigues 2020-08-19 04:34:29 +01:00 committed by GitHub
parent 4172fdb90c
commit c86e7ad11b
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2 changed files with 21 additions and 1 deletions
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5
packages/reactivity/src/ref.ts
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@ -35,7 +35,10 @@ export function ref(value?: unknown) {
return createRef(value)
}
export function shallowRef<T>(value: T): T extends Ref ? T : Ref<T>
export function shallowRef<T extends object>(
value: T
): T extends Ref ? T : Ref<T>
export function shallowRef<T>(value: T): Ref<T>
export function shallowRef<T = any>(): Ref<T | undefined>
export function shallowRef(value?: unknown) {
return createRef(value, true)

17
test-dts/ref.test-d.ts
View File

@ -1,6 +1,7 @@
import {
Ref,
ref,
shallowRef,
isRef,
unref,
reactive,
@ -120,6 +121,22 @@ const state = reactive({
expectType<string>(state.foo.label)
// shallowRef
type Status = 'initial' | 'ready' | 'invalidating'
const shallowStatus = shallowRef<Status>('initial')
if (shallowStatus.value === 'initial') {
expectType<Ref<Status>>(shallowStatus)
expectType<Status>(shallowStatus.value)
shallowStatus.value = 'invalidating'
}
const refStatus = ref<Status>('initial')
if (refStatus.value === 'initial') {
expectType<Ref<Status>>(shallowStatus)
expectType<Status>(shallowStatus.value)
refStatus.value = 'invalidating'
}
// proxyRefs: should return `reactive` directly
const r1 = reactive({
k: 'v'