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import type { CacheNode } from '../../../shared/lib/app-router-context.shared-runtime'
import type { FlightRouterState } from '../../../server/app-render/types'
import { createRouterCacheKey } from './create-router-cache-key'
/**
* Invalidate cache one level down from the router state.
*/
export function invalidateCacheByRouterState(
newCache: CacheNode,
existingCache: CacheNode,
routerState: FlightRouterState
): void {
// Remove segment that we got data for so that it is filled in during rendering of rsc.
for (const key in routerState[1]) {
const segmentForParallelRoute = routerState[1][key][0]
const cacheKey = createRouterCacheKey(segmentForParallelRoute)
const existingParallelRoutesCacheNode =
existingCache.parallelRoutes.get(key)
if (existingParallelRoutesCacheNode) {
let parallelRouteCacheNode = new Map(existingParallelRoutesCacheNode)
parallelRouteCacheNode.delete(cacheKey)
newCache.parallelRoutes.set(key, parallelRouteCacheNode)
}
}
}
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