next
Version:
The React Framework
62 lines (61 loc) • 2.82 kB
JavaScript
import { getNextFlightSegmentPath } from '../../flight-data-helpers';
import { createRouterCacheKey } from './create-router-cache-key';
/**
* This will clear the CacheNode data for a particular segment path. This will cause a lazy-fetch in layout router to fill in new data.
*/ export function clearCacheNodeDataForSegmentPath(newCache, existingCache, flightSegmentPath) {
const isLastEntry = flightSegmentPath.length <= 2;
const [parallelRouteKey, segment] = flightSegmentPath;
const cacheKey = createRouterCacheKey(segment);
const existingChildSegmentMap = existingCache.parallelRoutes.get(parallelRouteKey);
let childSegmentMap = newCache.parallelRoutes.get(parallelRouteKey);
if (!childSegmentMap || childSegmentMap === existingChildSegmentMap) {
childSegmentMap = new Map(existingChildSegmentMap);
newCache.parallelRoutes.set(parallelRouteKey, childSegmentMap);
}
const existingChildCacheNode = existingChildSegmentMap == null ? void 0 : existingChildSegmentMap.get(cacheKey);
let childCacheNode = childSegmentMap.get(cacheKey);
// In case of last segment start off the fetch at this level and don't copy further down.
if (isLastEntry) {
if (!childCacheNode || !childCacheNode.lazyData || childCacheNode === existingChildCacheNode) {
childSegmentMap.set(cacheKey, {
lazyData: null,
rsc: null,
prefetchRsc: null,
head: null,
prefetchHead: null,
parallelRoutes: new Map(),
loading: null
});
}
return;
}
if (!childCacheNode || !existingChildCacheNode) {
// Start fetch in the place where the existing cache doesn't have the data yet.
if (!childCacheNode) {
childSegmentMap.set(cacheKey, {
lazyData: null,
rsc: null,
prefetchRsc: null,
head: null,
prefetchHead: null,
parallelRoutes: new Map(),
loading: null
});
}
return;
}
if (childCacheNode === existingChildCacheNode) {
childCacheNode = {
lazyData: childCacheNode.lazyData,
rsc: childCacheNode.rsc,
prefetchRsc: childCacheNode.prefetchRsc,
head: childCacheNode.head,
prefetchHead: childCacheNode.prefetchHead,
parallelRoutes: new Map(childCacheNode.parallelRoutes),
loading: childCacheNode.loading
};
childSegmentMap.set(cacheKey, childCacheNode);
}
return clearCacheNodeDataForSegmentPath(childCacheNode, existingChildCacheNode, getNextFlightSegmentPath(flightSegmentPath));
}
//# sourceMappingURL=clear-cache-node-data-for-segment-path.js.map