main repo

node_modules/next/dist/esm/client/components/router-reducer/compute-changed-path.js

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+import { INTERCEPTION_ROUTE_MARKERS } from "../../../server/future/helpers/interception-routes";
+import { isGroupSegment } from "../../../shared/lib/segment";
+import { matchSegment } from "../match-segments";
+const removeLeadingSlash = (segment)=>{
+    return segment[0] === "/" ? segment.slice(1) : segment;
+};
+const segmentToPathname = (segment)=>{
+    if (typeof segment === "string") {
+        return segment;
+    }
+    return segment[1];
+};
+function normalizeSegments(segments) {
+    return segments.reduce((acc, segment)=>{
+        segment = removeLeadingSlash(segment);
+        if (segment === "" || isGroupSegment(segment)) {
+            return acc;
+        }
+        return acc + "/" + segment;
+    }, "") || "/";
+}
+export function extractPathFromFlightRouterState(flightRouterState) {
+    const segment = Array.isArray(flightRouterState[0]) ? flightRouterState[0][1] : flightRouterState[0];
+    if (segment === "__DEFAULT__" || INTERCEPTION_ROUTE_MARKERS.some((m)=>segment.startsWith(m))) return undefined;
+    if (segment.startsWith("__PAGE__")) return "";
+    const segments = [
+        segment
+    ];
+    var _flightRouterState_;
+    const parallelRoutes = (_flightRouterState_ = flightRouterState[1]) != null ? _flightRouterState_ : {};
+    const childrenPath = parallelRoutes.children ? extractPathFromFlightRouterState(parallelRoutes.children) : undefined;
+    if (childrenPath !== undefined) {
+        segments.push(childrenPath);
+    } else {
+        for (const [key, value] of Object.entries(parallelRoutes)){
+            if (key === "children") continue;
+            const childPath = extractPathFromFlightRouterState(value);
+            if (childPath !== undefined) {
+                segments.push(childPath);
+            }
+        }
+    }
+    return normalizeSegments(segments);
+}
+function computeChangedPathImpl(treeA, treeB) {
+    const [segmentA, parallelRoutesA] = treeA;
+    const [segmentB, parallelRoutesB] = treeB;
+    const normalizedSegmentA = segmentToPathname(segmentA);
+    const normalizedSegmentB = segmentToPathname(segmentB);
+    if (INTERCEPTION_ROUTE_MARKERS.some((m)=>normalizedSegmentA.startsWith(m) || normalizedSegmentB.startsWith(m))) {
+        return "";
+    }
+    if (!matchSegment(segmentA, segmentB)) {
+        var _extractPathFromFlightRouterState;
+        // once we find where the tree changed, we compute the rest of the path by traversing the tree
+        return (_extractPathFromFlightRouterState = extractPathFromFlightRouterState(treeB)) != null ? _extractPathFromFlightRouterState : "";
+    }
+    for(const parallelRouterKey in parallelRoutesA){
+        if (parallelRoutesB[parallelRouterKey]) {
+            const changedPath = computeChangedPathImpl(parallelRoutesA[parallelRouterKey], parallelRoutesB[parallelRouterKey]);
+            if (changedPath !== null) {
+                return segmentToPathname(segmentB) + "/" + changedPath;
+            }
+        }
+    }
+    return null;
+}
+export function computeChangedPath(treeA, treeB) {
+    const changedPath = computeChangedPathImpl(treeA, treeB);
+    if (changedPath == null || changedPath === "/") {
+        return changedPath;
+    }
+    // lightweight normalization to remove route groups
+    return normalizeSegments(changedPath.split("/"));
+}
+
+//# sourceMappingURL=compute-changed-path.js.map