68 lines
3.3 KiB
JavaScript
68 lines
3.3 KiB
JavaScript
import { invalidateCacheByRouterState } from "./invalidate-cache-by-router-state";
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import { fillLazyItemsTillLeafWithHead } from "./fill-lazy-items-till-leaf-with-head";
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import { createRouterCacheKey } from "./create-router-cache-key";
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/**
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* Fill cache with rsc based on flightDataPath
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*/ export function fillCacheWithNewSubTreeData(newCache, existingCache, flightDataPath, prefetchEntry) {
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const isLastEntry = flightDataPath.length <= 5;
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const [parallelRouteKey, segment] = flightDataPath;
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const cacheKey = createRouterCacheKey(segment);
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const existingChildSegmentMap = existingCache.parallelRoutes.get(parallelRouteKey);
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if (!existingChildSegmentMap) {
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// Bailout because the existing cache does not have the path to the leaf node
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// Will trigger lazy fetch in layout-router because of missing segment
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return;
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}
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let childSegmentMap = newCache.parallelRoutes.get(parallelRouteKey);
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if (!childSegmentMap || childSegmentMap === existingChildSegmentMap) {
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childSegmentMap = new Map(existingChildSegmentMap);
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newCache.parallelRoutes.set(parallelRouteKey, childSegmentMap);
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}
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const existingChildCacheNode = existingChildSegmentMap.get(cacheKey);
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let childCacheNode = childSegmentMap.get(cacheKey);
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if (isLastEntry) {
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if (!childCacheNode || !childCacheNode.lazyData || childCacheNode === existingChildCacheNode) {
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const seedData = flightDataPath[3];
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const rsc = seedData[2];
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const loading = seedData[3];
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childCacheNode = {
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lazyData: null,
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rsc,
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prefetchRsc: null,
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head: null,
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prefetchHead: null,
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loading,
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// Ensure segments other than the one we got data for are preserved.
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parallelRoutes: existingChildCacheNode ? new Map(existingChildCacheNode.parallelRoutes) : new Map(),
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lazyDataResolved: false
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};
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if (existingChildCacheNode) {
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invalidateCacheByRouterState(childCacheNode, existingChildCacheNode, flightDataPath[2]);
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}
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fillLazyItemsTillLeafWithHead(childCacheNode, existingChildCacheNode, flightDataPath[2], seedData, flightDataPath[4], prefetchEntry);
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childSegmentMap.set(cacheKey, childCacheNode);
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}
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return;
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}
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if (!childCacheNode || !existingChildCacheNode) {
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// Bailout because the existing cache does not have the path to the leaf node
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// Will trigger lazy fetch in layout-router because of missing segment
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return;
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}
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if (childCacheNode === existingChildCacheNode) {
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childCacheNode = {
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lazyData: childCacheNode.lazyData,
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rsc: childCacheNode.rsc,
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prefetchRsc: childCacheNode.prefetchRsc,
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head: childCacheNode.head,
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prefetchHead: childCacheNode.prefetchHead,
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parallelRoutes: new Map(childCacheNode.parallelRoutes),
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lazyDataResolved: false,
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loading: childCacheNode.loading
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};
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childSegmentMap.set(cacheKey, childCacheNode);
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}
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fillCacheWithNewSubTreeData(childCacheNode, existingChildCacheNode, flightDataPath.slice(2), prefetchEntry);
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}
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//# sourceMappingURL=fill-cache-with-new-subtree-data.js.map
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