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wip: adjust inject API

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This commit is contained in:
Evan You 2019-08-19 14:45:11 -04:00
parent 145bf98840
commit 685348f818
1 changed files with 6 additions and 10 deletions
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16
packages/runtime-core/src/apiInject.ts
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@ -1,9 +1,8 @@
import { ref, isRef, Ref } from './apiState'
import { currentInstance } from './component'
export interface InjectionKey<T> extends Symbol {}
export function provide<T>(key: InjectionKey<T> | string, value: T | Ref<T>) {
export function provide<T>(key: InjectionKey<T> | string, value: T) {
if (!currentInstance) {
// TODO warn
} else {
@ -22,19 +21,16 @@ export function provide<T>(key: InjectionKey<T> | string, value: T | Ref<T>) {
}
}
export function inject<T>(key: InjectionKey<T> | string): Ref<T> | undefined
export function inject<T>(
key: InjectionKey<T> | string,
defaultValue: T
): Ref<T>
export function inject<T>(key: InjectionKey<T> | string): T | undefined
export function inject<T>(key: InjectionKey<T> | string, defaultValue: T): T
export function inject(key: InjectionKey<any> | string, defaultValue?: any) {
if (!currentInstance) {
// TODO warn
} else {
// TODO should also check for app-level provides
const provides = currentInstance.parent && currentInstance.provides
const val =
provides && key in provides ? (provides[key as any] as any) : defaultValue
return isRef(val) ? val : ref(val)
return provides && key in provides
? (provides[key as any] as any)
: defaultValue
}
}