[go_router_builder] Migrate to Element2 API and update dependencies (flutter#9649)

close flutter#170832
close flutter#171003

* Update [build](https://pub.dev/packages/build), [build_test](https://pub.dev/packages/build_test), and [source_gen](https://pub.dev/packages/source_gen) versions.
* Update [analyzer](https://pub.dev/packages/analyzer) version to support Element2 API.
* Fix unit test code formatting and comparison logic
* Flutter 3.29 and Dart 3.7.

## Pre-Review Checklist

**Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

[^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

Author: koji-1009

packages/go_router_builder/CHANGELOG.md

@@ -1,6 +1,10 @@
-## NEXT
+## 3.1.0
 
-- Restricts `build` to versions less than 2.5.0.
+- Updates dependencies to use the latest `analyzer`, `build`, and `source_gen`.
+- Updates dev dependencies to use the latest `build_test`.
+- Migrates to the `element2` API.
+- Improves test code formatting consistency.
+- Updates minimum supported SDK version to Flutter 3.29/Dart 3.7.
 
 ## 3.0.1
 

packages/go_router_builder/README.md

@@ -8,12 +8,12 @@ To use `go_router_builder`, you need to have the following dependencies in
 ```yaml
 dependencies:
   # ...along with your other dependencies
-  go_router: ^9.0.3
+  go_router: ^16.0.0
 
 dev_dependencies:
   # ...along with your other dev-dependencies
-  build_runner: ^2.0.0
-  go_router_builder: ^2.3.0
+  build_runner: ^2.6.0
+  go_router_builder: ^3.1.0
 ```
 
 ### Source code

packages/go_router_builder/lib/go_router_builder.dart

@@ -21,7 +21,5 @@ import 'src/go_router_generator.dart';
 /// `go_router`.
 ///
 /// Not meant to be invoked by hand-authored code.
-Builder goRouterBuilder(BuilderOptions options) => SharedPartBuilder(
-      const <Generator>[GoRouterGenerator()],
-      'go_router',
-    );
+Builder goRouterBuilder(BuilderOptions options) =>
+    SharedPartBuilder(const <Generator>[GoRouterGenerator()], 'go_router');

packages/go_router_builder/lib/src/go_router_generator.dart

@@ -4,7 +4,7 @@
 
 import 'dart:async';
 
-import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/element2.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:build/build.dart';
 import 'package:source_gen/source_gen.dart';
@@ -27,9 +27,10 @@ class GoRouterGenerator extends Generator {
   const GoRouterGenerator();
 
   TypeChecker get _typeChecker => TypeChecker.any(
-        _annotations.keys.map((String annotation) =>
-            TypeChecker.fromUrl('$_routeDataUrl#$annotation')),
-      );
+    _annotations.keys.map(
+      (String annotation) => TypeChecker.fromUrl('$_routeDataUrl#$annotation'),
+    ),
+  );
 
   @override
   FutureOr<String> generate(LibraryReader library, BuildStep buildStep) async {
@@ -61,48 +62,53 @@ ${getters.map((String e) => "$e,").join('\n')}
     Set<String> values,
     Set<String> getters,
   ) {
-    for (final AnnotatedElement annotatedElement
-        in library.annotatedWith(_typeChecker)) {
+    for (final AnnotatedElement annotatedElement in library.annotatedWith(
+      _typeChecker,
+    )) {
       final InfoIterable generatedValue = _generateForAnnotatedElement(
         annotatedElement.element,
         annotatedElement.annotation,
       );
       getters.add(generatedValue.routeGetterName);
-      for (final String value in generatedValue) {
-        assert(value.length == value.trim().length);
-        values.add(value);
-      }
+      values.addAll(generatedValue.members);
     }
   }
 
   InfoIterable _generateForAnnotatedElement(
-    Element element,
+    Element2 element,
     ConstantReader annotation,
   ) {
-    final String typedAnnotation =
-        withoutNullability(annotation.objectValue.type!.getDisplayString());
-    final String type =
-        typedAnnotation.substring(0, typedAnnotation.indexOf('<'));
+    final String typedAnnotation = withoutNullability(
+      annotation.objectValue.type!.getDisplayString(),
+    );
+    final String type = typedAnnotation.substring(
+      0,
+      typedAnnotation.indexOf('<'),
+    );
     final String routeData = _annotations[type]!;
-    if (element is! ClassElement) {
+    if (element is! ClassElement2) {
       throw InvalidGenerationSourceError(
         'The @$type annotation can only be applied to classes.',
         element: element,
       );
     }
 
-    final TypeChecker dataChecker =
-        TypeChecker.fromUrl('$_routeDataUrl#$routeData');
-    if (!element.allSupertypes
-        .any((InterfaceType element) => dataChecker.isExactlyType(element))) {
+    final TypeChecker dataChecker = TypeChecker.fromUrl(
+      '$_routeDataUrl#$routeData',
+    );
+    if (!element.allSupertypes.any(
+      (InterfaceType element) => dataChecker.isExactlyType(element),
+    )) {
       throw InvalidGenerationSourceError(
         'The @$type annotation can only be applied to classes that '
         'extend or implement `$routeData`.',
         element: element,
       );
     }
 
-    return RouteBaseConfig.fromAnnotation(annotation, element)
-        .generateMembers();
+    return RouteBaseConfig.fromAnnotation(
+      annotation,
+      element,
+    ).generateMembers();
   }
 }

packages/go_router_builder/lib/src/path_utils.dart

@@ -15,9 +15,9 @@ final RegExp _parameterRegExp = RegExp(r':(\w+)(\((?:\\.|[^\\()])+\))?');
 /// final pathParameters = pathParametersFromPattern(pattern); // {'id', 'bookId'}
 /// ```
 Set<String> pathParametersFromPattern(String pattern) => <String>{
-      for (final RegExpMatch match in _parameterRegExp.allMatches(pattern))
-        match[1]!,
-    };
+  for (final RegExpMatch match in _parameterRegExp.allMatches(pattern))
+    match[1]!,
+};
 
 /// Reconstructs the full path from a [pattern] and path parameters.
 ///