[go_router]: fix GoRouter.optionURLReflectsImperativeAPIs flag works with new imperative APIs

packages/go_router/CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - Updates minimum supported SDK version to Flutter 3.16/Dart 3.2.
 - Fixes memory leaks.
+- GoRouter.optionURLReflectsImperativeAPIs now works correctly with new imperative APIs
 
 ## 13.2.0
 

packages/go_router/lib/src/parser.dart

@@ -125,18 +125,27 @@ class GoRouteInformationParser extends RouteInformationParser<RouteMatchList> {
     if (configuration.isEmpty) {
       return null;
     }
-    final String location;
+    String? location;
     if (GoRouter.optionURLReflectsImperativeAPIs &&
-        configuration.matches.last is ImperativeRouteMatch) {
-      location = (configuration.matches.last as ImperativeRouteMatch)
-          .matches
-          .uri
-          .toString();
-    } else {
-      location = configuration.uri.toString();
+        (configuration.matches.last is ImperativeRouteMatch ||
+            configuration.matches.last is ShellRouteMatch)) {
+      RouteMatchBase route = configuration.matches.last;
+
+      while (route is! ImperativeRouteMatch) {
+        if (route is ShellRouteMatch && route.matches.isNotEmpty) {
+          route = route.matches.last;
+        } else {
+          break;
+        }
+      }
+
+      if (route case final ImperativeRouteMatch safeRoute) {
+        location = safeRoute.matches.uri.toString();
+      }
     }
+
     return RouteInformation(
-      uri: Uri.parse(location),
+      uri: Uri.parse(location ?? configuration.uri.toString()),
       state: _routeMatchListCodec.encode(configuration),
     );
   }

packages/go_router/test/go_router_test.dart

@@ -1111,6 +1111,47 @@ void main() {
       log.clear();
     });
 
+    testWidgets(
+        'on push shell route with optionURLReflectImperativeAPIs = true',
+        (WidgetTester tester) async {
+      GoRouter.optionURLReflectsImperativeAPIs = true;
+      final List<RouteBase> routes = <RouteBase>[
+        GoRoute(
+          path: '/',
+          builder: (BuildContext context, GoRouterState state) =>
+              const DummyScreen(),
+          routes: <RouteBase>[
+            ShellRoute(
+              builder:
+                  (BuildContext context, GoRouterState state, Widget child) =>
+                      child,
+              routes: <RouteBase>[
+                GoRoute(
+                  path: 'c',
+                  builder: (BuildContext context, GoRouterState state) =>
+                      const DummyScreen(),
+                )
+              ],
+            ),
+          ],
+        ),
+      ];
+
+      final GoRouter router = await createRouter(routes, tester);
+
+      log.clear();
+      router.push('/c?foo=bar');
+      final RouteMatchListCodec codec =
+          RouteMatchListCodec(router.configuration);
+      await tester.pumpAndSettle();
+      expect(log, <Object>[
+        isMethodCall('selectMultiEntryHistory', arguments: null),
+        IsRouteUpdateCall('/c?foo=bar', false,
+            codec.encode(router.routerDelegate.currentConfiguration)),
+      ]);
+      GoRouter.optionURLReflectsImperativeAPIs = false;
+    });
+
     testWidgets('on push with optionURLReflectImperativeAPIs = true',
         (WidgetTester tester) async {
       GoRouter.optionURLReflectsImperativeAPIs = true;