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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | 2x 2x 2x 2x 116x 116x 116x 116x 2x 233x 233x | import {
type ComponentInternalInstance,
getCurrentInstance,
} from '../component'
import { warn } from '../warning'
export function useId(): string {
const i = getCurrentInstance()
if (i) {
return (i.appContext.config.idPrefix || 'v') + '-' + i.ids[0] + i.ids[1]++
} else if (__DEV__) {
warn(
`useId() is called when there is no active component ` +
`instance to be associated with.`,
)
}
return ''
}
/**
* There are 3 types of async boundaries:
* - async components
* - components with async setup()
* - components with serverPrefetch
*/
export function markAsyncBoundary(instance: ComponentInternalInstance): void {
instance.ids = [instance.ids[0] + instance.ids[2]++ + '-', 0, 0]
}
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