starting implement inject generator

cherrypick_annotations/lib/cherrypick_annotations.dart

@@ -19,3 +19,5 @@ export 'src/instance.dart';
 export 'src/singleton.dart';
 export 'src/named.dart';
 export 'src/params.dart';
+export 'src/inject.dart';
+export 'src/injectable.dart';

cherrypick_annotations/lib/src/inject.dart

@@ -0,0 +1,17 @@
+//
+// Copyright 2021 Sergey Penkovsky (sergey.penkovsky@gmail.com)
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//      http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// ignore: camel_case_types
+final class inject {
+  const inject();
+}

cherrypick_annotations/lib/src/injectable.dart

@@ -0,0 +1,17 @@
+//
+// Copyright 2021 Sergey Penkovsky (sergey.penkovsky@gmail.com)
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//      http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+// ignore: camel_case_types
+final class injectable {
+  const injectable();
+}

cherrypick_generator/build.yaml

@@ -7,10 +7,21 @@ builders:
     required_inputs: ["lib/**"]
     runs_before: []
     build_to: source
+  inject_generator:
+    import: "package:cherrypick_generator/inject_generator.dart"
+    builder_factories: ["injectBuilder"]
+    build_extensions: {".dart": [".cherrypick.g.dart"]}
+    auto_apply: dependents
+    required_inputs: ["lib/**"]
+    runs_before: []
+    build_to: source
 
 targets:
   $default:
     builders:
       cherrypick_generator|module_generator:
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|inject_generator:
         generate_for:
           - lib/**.dart

cherrypick_generator/lib/cherrypick_generator.dart

@@ -14,3 +14,4 @@ library;
 //
 
 export 'module_generator.dart';
+export 'inject_generator.dart';

cherrypick_generator/lib/inject_generator.dart

@@ -0,0 +1,65 @@
+import 'dart:async';
+import 'package:build/build.dart';
+import 'package:collection/collection.dart';
+import 'package:source_gen/source_gen.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:cherrypick_annotations/cherrypick_annotations.dart' as ann;
+
+class InjectGenerator extends GeneratorForAnnotation<ann.injectable> {
+  const InjectGenerator();
+
+  @override
+  FutureOr<String> generateForAnnotatedElement(
+      Element element, ConstantReader annotation, BuildStep buildStep) {
+    // Only classes are supported for @module() annotation
+    // Обрабатываются только классы (другие элементы — ошибка)
+    if (element is! ClassElement) {
+      throw InvalidGenerationSourceError(
+        '@injectable() can only be applied to classes.',
+        element: element,
+      );
+    }
+
+    final classElement = element;
+    final className = classElement.name;
+    final mixinName = '_\$$className';
+
+    final injectedFields = classElement.fields.where((field) => field.metadata
+        .any((m) =>
+            m.computeConstantValue()?.type?.getDisplayString() == 'inject'));
+
+    // Генерируем инициализацию для каждого поля с аннотацией @inject()
+    final buffer = StringBuffer();
+    buffer.writeln('mixin $mixinName {');
+    buffer.writeln('  void _inject($className instance) {');
+
+    for (final field in injectedFields) {
+      // Получаем имя типа
+      final fieldType = field.type.getDisplayString();
+      // Ищем аннотацию @named
+      final namedAnnotation = field.metadata.firstWhereOrNull(
+        (m) => m.computeConstantValue()?.type?.getDisplayString() == 'named',
+      );
+      String namedParam = '';
+      if (namedAnnotation != null) {
+        final namedValue = namedAnnotation
+            .computeConstantValue()
+            ?.getField('value')
+            ?.toStringValue();
+        if (namedValue != null) {
+          namedParam = "(named: '$namedValue')";
+        }
+      }
+      buffer.writeln(
+          "    instance.${field.name} = CherryPick.openRootScope().resolve<$fieldType>$namedParam;");
+    }
+
+    buffer.writeln('  }');
+    buffer.writeln('}');
+
+    return buffer.toString();
+  }
+}
+
+Builder injectBuilder(BuilderOptions options) =>
+    PartBuilder([InjectGenerator()], '.inject.cherrypick.g.dart');

cherrypick_generator/lib/module_generator.dart

@@ -90,4 +90,4 @@ class ModuleGenerator extends GeneratorForAnnotation<ann.module> {
 /// файлов, где встречается @module().
 /// ---------------------------------------------------------------------------
 Builder moduleBuilder(BuilderOptions options) =>
-    PartBuilder([ModuleGenerator()], '.cherrypick.g.dart');
+    PartBuilder([ModuleGenerator()], '.module.cherrypick.g.dart');

cherrypick_generator/pubspec.yaml

@@ -18,6 +18,7 @@ dependencies:
   build: ^2.4.1
   build_runner: ^2.4.13
   source_gen: ^1.5.0
+  collection: ^1.18.0
 
 dev_dependencies:
   lints: ^5.0.0

examples/client_app/pubspec.lock

@@ -153,7 +153,7 @@ packages:
       path: "../../cherrypick_generator"
       relative: true
     source: path
-    version: "1.1.0-dev.1"
+    version: "1.1.0-dev.2"
   clock:
     dependency: transitive
     description:

examples/postly/lib/app.dart

@@ -0,0 +1,35 @@
+import 'package:cherrypick/cherrypick.dart';
+import 'package:cherrypick_annotations/cherrypick_annotations.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'domain/repository/post_repository.dart';
+import 'presentation/bloc/post_bloc.dart';
+import 'router/app_router.dart';
+
+part 'app.inject.cherrypick.g.dart';
+
+@injectable()
+class MyApp extends StatelessWidget with _$MyApp {
+  final Scope scope;
+  final _appRouter = AppRouter();
+
+  @named('repo')
+  @inject()
+  late final PostRepository repository;
+
+  MyApp({super.key, required this.scope});
+
+  @override
+  Widget build(BuildContext context) {
+    _inject(this);
+    return BlocProvider(
+      create: (_) => PostBloc(repository),
+      child: MaterialApp.router(
+        routeInformationParser: _appRouter.defaultRouteParser(),
+        routerDelegate: _appRouter.delegate(),
+        theme: ThemeData.light(),
+      ),
+    );
+  }
+}

examples/postly/lib/di/app_module.dart

@@ -5,7 +5,7 @@ import '../data/network/json_placeholder_api.dart';
 import '../data/post_repository_impl.dart';
 import '../domain/repository/post_repository.dart';
 
-part 'app_module.cherrypick.g.dart';
+part 'app_module.module.cherrypick.g.dart';
 
 @module()
 abstract class AppModule extends Module {

examples/postly/lib/main.dart

@@ -1,10 +1,7 @@
 import 'package:cherrypick/cherrypick.dart';
 import 'package:flutter/material.dart';
+import 'package:postly/app.dart';
 import 'di/app_module.dart';
-import 'domain/repository/post_repository.dart';
-import 'presentation/bloc/post_bloc.dart';
-import 'package:flutter_bloc/flutter_bloc.dart';
-import 'router/app_router.dart';
 
 void main() {
   final scope = CherryPick.openRootScope();
@@ -12,25 +9,3 @@ void main() {
 
   runApp(MyApp(scope: scope));
 }
-
-class MyApp extends StatelessWidget {
-  final Scope scope;
-  final _appRouter = AppRouter();
-
-  MyApp({super.key, required this.scope});
-
-  @override
-  Widget build(BuildContext context) {
-    // Получаем репозиторий через injector
-    final repository = scope.resolve<PostRepository>(named: 'repo');
-
-    return BlocProvider(
-      create: (_) => PostBloc(repository),
-      child: MaterialApp.router(
-        routeInformationParser: _appRouter.defaultRouteParser(),
-        routerDelegate: _appRouter.delegate(),
-        theme: ThemeData.light(),
-      ),
-    );
-  }
-}

examples/postly/pubspec.lock

@@ -170,7 +170,7 @@ packages:
       path: "../../cherrypick_generator"
       relative: true
     source: path
-    version: "1.1.0-dev.1"
+    version: "1.1.0-dev.2"
   clock:
     dependency: transitive
     description: