Generator: migrate to analyzer element2 API, allow latest dependencies

.github/workflows/code-analysis.yml

@@ -15,8 +15,8 @@ permissions:
 env:
   # Do code analysis with latest SDK.
   # Pick a concrete version instead of "latest" to avoid builds breaking due to changes in new SDKs.
-  FLUTTER_VERSION: 3.29.2 # Available versions: https://docs.flutter.dev/release/archive
-  DART_VERSION: 3.7.2 # Available versions: https://dart.dev/get-dart/archive
+  FLUTTER_VERSION: 3.35.2 # Available versions: https://docs.flutter.dev/release/archive
+  DART_VERSION: 3.9.2 # Available versions: https://dart.dev/get-dart/archive
 
 jobs:
   format-and-analyze:

.github/workflows/test.yml

@@ -20,8 +20,8 @@ env:
   # Run generator integration tests and init script with latest SDK.
   # Pick a concrete version instead of "latest" to avoid builds breaking due to changes in new SDKs.
   # NOTE: also update matrix configurations below!
-  FLUTTER_VERSION: 3.29.2 # Available versions: https://docs.flutter.dev/release/archive
-  DART_VERSION: 3.7.2 # Available versions: https://dart.dev/get-dart/archive
+  FLUTTER_VERSION: 3.35.2 # Available versions: https://docs.flutter.dev/release/archive
+  DART_VERSION: 3.9.2 # Available versions: https://dart.dev/get-dart/archive
 
 jobs:
 
@@ -67,8 +67,8 @@ jobs:
           # Pick a concrete version instead of "latest" to avoid builds breaking due to changes in new SDKs.
           # Can not use env variables here, only within 'steps'.
           # For available versions see https://dart.dev/get-dart/archive
-          - 3.7.2
-          - 3.5.4 # Use latest bugfix release to get tooling fixes
+          - 3.9.2
+          - 3.7.2 # Use latest bugfix release to get tooling fixes
     runs-on: ${{ matrix.os }}
     steps:
       - uses: dart-lang/setup-dart@e51d8e571e22473a2ddebf0ef8a2123f0ab2c02c # v1.7.1
@@ -111,17 +111,17 @@ jobs:
           # Can not use env variables here, only within 'steps'.
           # For available versions see https://docs.flutter.dev/release/archive
           # NOTE Also update versions for Ubuntu below!
-          - 3.29.2
-          - 3.24.5 # Use latest bugfix release to get tooling fixes
+          - 3.35.2
+          - 3.29.3 # Use latest bugfix release to get tooling fixes
         include:
           # Test building for Android with highest supported JDK on latest Flutter SDK,
           # lowest supported JDK on lowest supported Flutter SDK. (Android is only built if a Linux
           # OS is detected, see integration-test.sh)
           - os: ubuntu-24.04
-            flutter-version: 3.29.2
+            flutter-version: 3.35.2
             jdk: 21
           - os: ubuntu-24.04
-            flutter-version: 3.24.5 # Use latest bugfix release to get tooling fixes
+            flutter-version: 3.29.3 # Use latest bugfix release to get tooling fixes
             jdk: 17
     runs-on: ${{ matrix.os }}
     steps:

.gitlab-ci.yml

@@ -8,8 +8,8 @@ variables:
   # # Pick a concrete version instead of "latest" to avoid builds breaking due to changes in new
   # SDKs.
   # For available versions see https://hub.docker.com/_/dart/tags and https://dart.dev/get-dart/archive
-  DART_VERSION_LATEST: '3.7.2'
-  DART_VERSION_LOWEST: '3.5.4' # Use latest bugfix release to get tooling fixes
+  DART_VERSION_LATEST: '3.9.2'
+  DART_VERSION_LOWEST: '3.7.2' # Use latest bugfix release to get tooling fixes
   DART_VERSION: $DART_VERSION_LATEST # Also used for caching, see .cache template
 
 .common:
@@ -84,7 +84,10 @@ generator-integ-tests:
     # Generator tests
     - cd generator
     - dart pub get
-    - dart test
+    # generator test suites must not run in parallel (see notes on GeneratorTestEnv):
+    # Set concurrency=1 to run only one test suite (== test file) at a time.
+    # Set --reporter expanded to print log for every completed test.
+    - dart test --concurrency=1 --reporter expanded
     # ObjectBox tests
     - cd ../objectbox_test
     - ../install.sh

generator/build.yaml

@@ -29,9 +29,10 @@ builders:
     builder_factories: ["codeGeneratorFactory"]
     # build_extensions: Required. A map from input extension to the list of output extensions that may be created
     # for that input. This must match the merged buildExtensions maps from each Builder in builder_factories.
+    # See notes on CodeBuilder.buildExtensions.
     build_extensions:
       "$lib$": ["objectbox.g.dart"]
-      "$test": ["objectbox.g.dart"]
+      "$test$": ["objectbox.g.dart"]
     required_inputs: ['.objectbox.info']
     auto_apply: dependents
     build_to: source

generator/integration-tests/part-partof/lib/frozen.dart

@@ -4,7 +4,7 @@ import 'package:objectbox/objectbox.dart';
 part 'frozen.freezed.dart';
 
 @freezed
-class FrozenEntity with _$FrozenEntity {
+sealed class FrozenEntity with _$FrozenEntity {
   @Entity(realClass: FrozenEntity)
   factory FrozenEntity(
       {@Id(assignable: true) required int id,
@@ -13,15 +13,15 @@ class FrozenEntity with _$FrozenEntity {
 }
 
 @freezed
-class FrozenPerson with _$FrozenPerson {
+sealed class FrozenPerson with _$FrozenPerson {
   @Entity(realClass: FrozenPerson)
   factory FrozenPerson(
       {@Id(assignable: true) required int id,
       required String name}) = _FrozenPerson;
 }
 
 @freezed
-class FrozenBook with _$FrozenBook {
+sealed class FrozenBook with _$FrozenBook {
   @Entity(realClass: FrozenBook)
   factory FrozenBook(
       {@Id(assignable: true) required int id,

generator/integration-tests/part-partof/pubspec.yaml

@@ -1,25 +1,22 @@
 name: objectbox_generator_test
 
 environment:
-  sdk: '>=2.14.0 <4.0.0'
+  sdk: '^3.0.0' # Require 3.0 to use sealed classes for freezed
 
 dependencies:
   objectbox: any # override below to use local package
   json_annotation: '^4.6.0'
-  freezed_annotation: '^2.1.0'
+  freezed_annotation: '^3.1.0'
 
 dev_dependencies:
-  json_serializable: '^6.3.1'
-  freezed: '^2.0.4' # 3.0.4 requires Dart 3.6
+  json_serializable: '^6.10.0' # Require 6.10.0 to allow build 3 required by objectbox_generator
+  freezed: '^3.0.0' # Require 3.0.0 to allow build 3 and source_gen 3.1 required by objectbox_generator
   objectbox_generator: any # override below to use local package
   test: '^1.21.4'
   build_runner: '^2.3.3'
-  build_test: '^2.1.3'
+  build_test: '^3.0.0'
   io: '^1.0.4'
   path: '^1.8.3'
-  # analyzer 7.4.0 introduced breaking API changes in a minor release, breaking json_serializable
-  # https://github.com/google/json_serializable.dart/issues/1485
-  analyzer: '<=7.3.0'
 
 dependency_overrides:
   objectbox:

generator/lib/src/analysis/analysis.dart

@@ -18,14 +18,20 @@ import 'build_properties.dart';
 /// Requires [tokenFilePath] to exist, otherwise does nothing. See the
 /// associated test (analysis_test.dart) on how to create this file.
 class ObjectBoxAnalysis {
-  static const _debug = false;
-
   /// Path is relative to lib folder.
-  static const tokenFilePath = "assets/analysis-token.txt";
+  static const defaultTokenFilePath = "assets/analysis-token.txt";
 
   static const _url = "api.mixpanel.com";
   static const _path = "track";
 
+  final bool _debug;
+  final String _tokenFilePath;
+
+  ObjectBoxAnalysis(
+      {bool debug = false, String tokenFilePath = defaultTokenFilePath})
+      : _debug = debug,
+        _tokenFilePath = tokenFilePath;
+
   /// Builds a Build event and sends it with [sendEvent]. May not send if it
   /// fails to store a unique identifier and last time sent, or if no valid API
   /// token is found.
@@ -126,7 +132,7 @@ class ObjectBoxAnalysis {
   }
 
   Future<String?> _getToken() async {
-    final uri = Uri.parse("package:objectbox_generator/$tokenFilePath");
+    final uri = Uri.parse("package:objectbox_generator/$_tokenFilePath");
     final resolvedUri = await Isolate.resolvePackageUri(uri);
     if (resolvedUri != null) {
       final file = File.fromUri(resolvedUri);

generator/lib/src/builder_dirs.dart

@@ -1,4 +1,3 @@
-import 'package:build/build.dart';
 import 'package:path/path.dart' as path;
 
 import 'config.dart';
@@ -12,11 +11,15 @@ class BuilderDirs {
 
   BuilderDirs._(this.root, this.out);
 
-  factory BuilderDirs(BuildStep buildStep, Config config) {
+  /// For [pathInSourceRoot] expects the path to a file in the source root
+  /// directory (currently only lib or test are supported). It's used to
+  /// determine the [root] source path and [out] path for generated code.
+  /// A [config] may customize the [out] path relative to [root].
+  factory BuilderDirs(String pathInSourceRoot, Config config) {
     // Paths from Config are supplied by the user and may contain duplicate
     // slashes or be empty: normalize all paths to not return duplicate or
     // trailing slashes to ensure they can be compared via strings.
-    final root = path.normalize(path.dirname(buildStep.inputId.path));
+    final root = path.normalize(path.dirname(pathInSourceRoot));
     final String out;
     if (root.endsWith('test')) {
       out = path.normalize('$root/${config.outDirTest}');

generator/lib/src/code_builder.dart

@@ -29,13 +29,17 @@ class CodeBuilder extends Builder {
 
   @override
   late final buildExtensions = {
+    // lib/$lib$ and test/$test$ are placeholder files of build_runner which are
+    // used as there is no clear primary input file for this builder.
     r'$lib$': [path.join(_config.outDirLib, _config.codeFile)],
     r'$test$': [path.join(_config.outDirTest, _config.codeFile)]
   };
 
   @override
   FutureOr<void> build(BuildStep buildStep) async {
-    final builderDirs = BuilderDirs(buildStep, _config);
+    // This is only called twice, once with path lib/$lib$ and once with test/$test$
+    final inputFilePath = buildStep.inputId.path;
+    final builderDirs = BuilderDirs(inputFilePath, _config);
 
     // build() will be called only twice, once for the `lib` directory and once for the `test` directory
     // map from file name to a 'json' representation of entities