feat(cli): pretty build.yaml generation, full English docs, robust init command\n\n- build.yaml is always formatted\n- CLI help and output in English\n- README with usage and examples\n- Custom output dir and build.yaml supported\n- Safe update of existing configs\n- json2yaml for pretty YAML output

refactor: clean up unused code and fix all analyzer warnings
- Removed all unused imports and variables across generator sources and tests - Applied Dart 3 super parameters to all custom exceptions - Project now passes 'dart analyze' with zero warnings or infos - All tests (164/164) are green This commit improves code clarity and ensures full compliance with modern Dart best practices.
2026-01-23 21:13:35 +00:00 · 2025-07-16 18:05:48 +03:00 · 2025-07-15 16:28:05 +03:00 · 2025-07-15 16:03:10 +03:00 · 2025-07-15 12:10:54 +03:00 · 2025-07-15 12:07:23 +03:00
35 changed files with 2556 additions and 198 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -7,7 +7,7 @@
 .idea/
 .vscode/

-
+**/generated
 **/*.g.dart
 **/*.gr.dart
 **/*.freezed.dart
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,40 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+## 2025-07-15
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - [`cherrypick_generator` - `v1.1.0-dev.6`](#cherrypick_generator---v110-dev6)
+
+Packages with other changes:
+
+ - [`cherrypick` - `v2.2.0-dev.2`](#cherrypick---v220-dev2)
+ - [`cherrypick_flutter` - `v1.1.2-dev.2`](#cherrypick_flutter---v112-dev2)
+
+Packages with dependency updates only:
+
+> Packages listed below depend on other packages in this workspace that have had changes. Their versions have been incremented to bump the minimum dependency versions of the packages they depend upon in this project.
+
+ - `cherrypick_flutter` - `v1.1.2-dev.2`
+
+---
+
+#### `cherrypick_generator` - `v1.1.0-dev.6`
+
+ - **FIX**: format test code.
+ - **FEAT**(generator): support output_dir and build_extensions config for generated files.
+ - **BREAKING** **FEAT**(generator): complete code generation testing framework with 100% test coverage.
+
+#### `cherrypick` - `v2.2.0-dev.2`
+
+ - **DOCS**: move and update quick start guides to ./doc directory.
+
+
 ## 2025-06-04

 ### Changes
--- a/cherrypick/CHANGELOG.md
+++ b/cherrypick/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.2.0-dev.2
+
+ - **DOCS**: move and update quick start guides to ./doc directory.
+
 ## 2.2.0-dev.1

 - **FIX**: fix warnings.
--- a/cherrypick/pubspec.yaml
+++ b/cherrypick/pubspec.yaml
@@ -1,6 +1,6 @@
 name: cherrypick
 description: Cherrypick is a small dependency injection (DI) library for dart/flutter projects.
-version: 2.2.0-dev.1
+version: 2.2.0-dev.2
 homepage: https://pese-git.github.io/cherrypick-site/
 documentation: https://github.com/pese-git/cherrypick/wiki
 repository: https://github.com/pese-git/cherrypick
--- a/cherrypick_cli/LICENSE
+++ b/cherrypick_cli/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
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--- a/cherrypick_cli/README.md
+++ b/cherrypick_cli/README.md
@@ -0,0 +1,93 @@
+# CherryPick CLI
+
+A command-line tool for managing and generating `build.yaml` configuration for the [CherryPick](https://github.com/pese-git/cherrypick) dependency injection ecosystem for Dart & Flutter.
+
+---
+
+## Features
+- 📦 Quickly add or update CherryPick generator sections in your project's `build.yaml`.
+- 🛡️ Safely preserves unrelated configs and packages.
+- 📝 Always outputs a human-friendly, formatted YAML file.
+- 🏷️ Supports custom output directories and custom build.yaml file paths.
+
+---
+
+## Getting Started
+
+1. **Navigate to the CLI package directory:**
+   ```bash
+   cd cherrypick_cli
+   ```
+2. **Get dependencies:**
+   ```bash
+   dart pub get
+   ```
+3. **Run the CLI:**
+   ```bash
+   dart run cherrypick_cli init --output_dir=lib/generated
+   ```
+
+---
+
+## Usage
+
+### Show help
+```bash
+dart run cherrypick_cli --help
+```
+
+### Add or update CherryPick sections in build.yaml
+```bash
+dart run cherrypick_cli init --output_dir=lib/generated
+```
+
+#### Options:
+- `--output_dir`, `-o`  — Directory for generated code (default: `lib/generated`)
+- `--build_yaml`, `-f`  — Path to build.yaml file (default: `build.yaml`)
+
+#### Example with custom build.yaml
+```bash
+dart run cherrypick_cli init --output_dir=custom/dir --build_yaml=custom_build.yaml
+```
+
+---
+
+## What does it do?
+- Adds or updates the following sections in your `build.yaml` (or custom file):
+  - `cherrypick_generator|inject_generator`
+  - `cherrypick_generator|module_generator`
+- Ensures all YAML is pretty-printed and readable.
+- Leaves unrelated configs untouched.
+
+---
+
+## Example Output
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          build_extensions:
+            ^lib/{{}}.dart:
+              - lib/generated/{{}}.inject.cherrypick.g.dart
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|module_generator:
+        options:
+          build_extensions:
+            ^lib/di/{{}}.dart:
+              - lib/generated/di/{{}}.module.cherrypick.g.dart
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+```
+
+---
+
+## Contributing
+Pull requests and issues are welcome! See the [main CherryPick repo](https://github.com/pese-git/cherrypick) for more.
+
+## License
+See [LICENSE](LICENSE).
--- a/cherrypick_cli/bin/cherrypick_cli.dart
+++ b/cherrypick_cli/bin/cherrypick_cli.dart
@@ -0,0 +1,8 @@
+import 'package:args/command_runner.dart';
+import 'package:cherrypick_cli/src/commands/init_command.dart';
+
+void main(List<String> args) {
+  final runner = CommandRunner('cherrypick_cli', 'CherryPick CLI')
+    ..addCommand(InitCommand());
+  runner.run(args);
+}
--- a/cherrypick_cli/lib/src/commands/init_command.dart
+++ b/cherrypick_cli/lib/src/commands/init_command.dart
@@ -0,0 +1,34 @@
+import 'package:args/command_runner.dart';
+import '../utils/build_yaml_updater.dart';
+
+class InitCommand extends Command {
+  @override
+  final name = 'init';
+  @override
+  final description = 'Adds or updates cherrypick_generator sections in build.yaml, preserving other packages.';
+
+  InitCommand() {
+    argParser.addOption(
+      'output_dir',
+      abbr: 'o',
+      defaultsTo: 'lib/generated',
+      help: 'Directory for generated code.',
+    );
+    argParser.addOption(
+      'build_yaml',
+      abbr: 'f',
+      defaultsTo: 'build.yaml',
+      help: 'Path to build.yaml file.',
+    );
+  }
+
+  @override
+  void run() {
+    final outputDir = argResults?['output_dir'] as String? ?? 'lib/generated';
+    final buildYaml = argResults?['build_yaml'] as String? ?? 'build.yaml';
+    updateCherrypickBuildYaml(
+      buildYamlPath: buildYaml,
+      outputDir: outputDir,
+    );
+  }
+}
--- a/cherrypick_cli/lib/src/utils/build_yaml_updater.dart
+++ b/cherrypick_cli/lib/src/utils/build_yaml_updater.dart
@@ -0,0 +1,76 @@
+import 'dart:io';
+import 'package:yaml/yaml.dart';
+import 'package:json2yaml/json2yaml.dart';
+
+void updateCherrypickBuildYaml({
+  String buildYamlPath = 'build.yaml',
+  String outputDir = 'lib/generated',
+}) {
+  final file = File(buildYamlPath);
+  final exists = file.existsSync();
+  Map config = {};
+  if (exists) {
+    final content = file.readAsStringSync();
+    final loaded = loadYaml(content);
+    config = _deepYamlToMap(loaded);
+  }
+
+  // Гарантируем вложенность
+  config['targets'] ??= {};
+  final targets = config['targets'] as Map;
+  targets['\$default'] ??= {};
+  final def = targets['\$default'] as Map;
+  def['builders'] ??= {};
+  final builders = def['builders'] as Map;
+
+  builders['cherrypick_generator|inject_generator'] = {
+    'options': {
+      'build_extensions': {
+        '^lib/{{}}.dart': ['${outputDir}/{{}}.inject.cherrypick.g.dart']
+      },
+      'output_dir': outputDir
+    },
+    'generate_for': ['lib/**.dart']
+  };
+
+  builders['cherrypick_generator|module_generator'] = {
+    'options': {
+      'build_extensions': {
+        '^lib/di/{{}}.dart': ['${outputDir}/di/{{}}.module.cherrypick.g.dart']
+      },
+      'output_dir': outputDir
+    },
+    'generate_for': ['lib/**.dart']
+  };
+
+  final yamlString = json2yaml(_stringifyKeys(config), yamlStyle: YamlStyle.pubspecYaml);
+  file.writeAsStringSync(yamlString);
+  print('✅ build.yaml has been successfully updated and formatted (cherrypick sections added/updated).');
+}
+
+dynamic _stringifyKeys(dynamic node) {
+  if (node is Map) {
+    return Map.fromEntries(
+      node.entries.map(
+        (e) => MapEntry(e.key.toString(), _stringifyKeys(e.value)),
+      ),
+    );
+  } else if (node is List) {
+    return node.map(_stringifyKeys).toList();
+  } else {
+    return node;
+  }
+}
+
+
+/// Рекурсивно преобразует YamlMap/YamlList в обычные Map/List
+dynamic _deepYamlToMap(dynamic node) {
+  if (node is YamlMap) {
+    return Map.fromEntries(node.entries.map((e) => MapEntry(e.key, _deepYamlToMap(e.value))));
+  } else if (node is YamlList) {
+    return node.map(_deepYamlToMap).toList();
+  } else {
+    return node;
+  }
+}
+
--- a/cherrypick_cli/pubspec.lock
+++ b/cherrypick_cli/pubspec.lock
@@ -0,0 +1,85 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  args:
+    dependency: "direct main"
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.19.1"
+  json2yaml:
+    dependency: "direct main"
+    description:
+      name: json2yaml
+      sha256: da94630fbc56079426fdd167ae58373286f603371075b69bf46d848d63ba3e51
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.1"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.17.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.1"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.2"
+  yaml:
+    dependency: "direct main"
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
+  yaml_edit:
+    dependency: "direct main"
+    description:
+      name: yaml_edit
+      sha256: fb38626579fb345ad00e674e2af3a5c9b0cc4b9bfb8fd7f7ff322c7c9e62aef5
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
+sdks:
+  dart: ">=3.5.0 <4.0.0"
--- a/cherrypick_cli/pubspec.yaml
+++ b/cherrypick_cli/pubspec.yaml
@@ -0,0 +1,13 @@
+name: cherrypick_cli
+version: 0.1.0
+publish_to: none
+description: CLI tool for CherryPick DI ecosystem
+environment:
+  sdk: ">=3.0.0 <4.0.0"
+dependencies:
+  args: ^2.4.2
+  yaml: ^3.1.2
+  yaml_edit: ^2.1.1
+  json2yaml: ^3.0.0
+executables:
+  cherrypick_cli:
--- a/cherrypick_flutter/CHANGELOG.md
+++ b/cherrypick_flutter/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.1.2-dev.2
+
+ - Update a dependency to the latest release.
+
 ## 1.1.2-dev.1

 - Update a dependency to the latest release.
--- a/cherrypick_flutter/pubspec.yaml
+++ b/cherrypick_flutter/pubspec.yaml
@@ -1,6 +1,6 @@
 name: cherrypick_flutter
 description: "Flutter library that allows access to the root scope through the context using `CherryPickProvider`."
-version: 1.1.2-dev.1
+version: 1.1.2-dev.2
 homepage: https://pese-git.github.io/cherrypick-site/
 documentation: https://github.com/pese-git/cherrypick/wiki
 repository: https://github.com/pese-git/cherrypick
@@ -13,7 +13,7 @@ environment:
 dependencies:
  flutter:
    sdk: flutter
-  cherrypick: ^2.2.0-dev.1
+  cherrypick: ^2.2.0-dev.2

 dev_dependencies:
  flutter_test:
--- a/cherrypick_generator/CHANGELOG.md
+++ b/cherrypick_generator/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 1.1.0-dev.6
+
+> Note: This release has breaking changes.
+
+ - **FIX**: format test code.
+ - **FEAT**(generator): support output_dir and build_extensions config for generated files.
+ - **BREAKING** **FEAT**(generator): complete code generation testing framework with 100% test coverage.
+
 ## 1.1.0-dev.5

 - **FEAT**: implement tryResolve via generate code.
--- a/cherrypick_generator/README.md
+++ b/cherrypick_generator/README.md
@@ -4,6 +4,50 @@

 ---

+### Advanced: Customizing Generated File Paths (`build_extensions`)
+
+You can further control the filenames and subdirectory structure of generated files using the `build_extensions` option in `build.yaml`. This is especially useful in large apps for keeping DI artifacts organized under `lib/generated/` or any custom location.
+
+**Example advanced build.yaml:**
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          build_extensions:
+            '^lib/app.dart': ['lib/generated/app.inject.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|module_generator:
+        options:
+          build_extensions:
+            '^lib/di/{{}}.dart': ['lib/generated/di/{{}}.module.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+```
+
+- **output_dir**: Path where all generated files are placed (e.g., `lib/generated`)
+- **build_extensions**: Allows templating of generated filenames and locations. You can use wildcards like `{{}}` to keep directory structure or group related files.
+
+**If you use these options, be sure to update your imports accordingly, for example:**
+
+```dart
+import 'package:your_package/generated/app.inject.cherrypick.g.dart';
+import 'package:your_package/generated/di/app_module.module.cherrypick.g.dart';
+```
+
+### FAQ / Troubleshooting
+
+- If files are missing or located in unexpected directories, double-check your `output_dir` and `build_extensions` configuration.
+- If you change generation paths, always update your imports in the codebase.
+- These options are backward compatible: omitting them preserves pre-existing (side-by-source) output behavior.
+
+---
+
 ## Features

 - **Automatic Field Injection:**  
@@ -170,6 +214,26 @@ final class $MyModule extends MyModule {

 ## Advanced Usage

+### Custom output directory for generated code (output_dir)
+
+You can control the directory where the generated files (`*.inject.cherrypick.g.dart`, `*.module.cherrypick.g.dart`) are placed using the `output_dir` option in your `build.yaml`:
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|injectBuilder:
+        options:
+          output_dir: lib/generated
+      cherrypick_generator|moduleBuilder:
+        options:
+          output_dir: lib/generated
+```
+
+**If `output_dir` is omitted, generated files are placed next to the original sources (default behavior).**
+
+After running code generation, you will find files like `lib/generated/app.inject.cherrypick.g.dart` and `lib/generated/your_module.module.cherrypick.g.dart`. You can import them as needed from that directory.
+
 - **Combining Modules and Field Injection:**  
  It's possible to mix both style of DI — modules for binding, and field injection for consuming services.
 - **Parameter and Named Injection:**  
--- a/cherrypick_generator/build.yaml
+++ b/cherrypick_generator/build.yaml
@@ -1,20 +1,18 @@
 builders:
-  module_generator:
-    import: "package:cherrypick_generator/module_generator.dart"
-    builder_factories: ["moduleBuilder"]
-    build_extensions: {".dart": [".module.cherrypick.g.dart"]}
-    auto_apply: dependents
-    required_inputs: ["lib/**"]
-    runs_before: []
-    build_to: source
  inject_generator:
    import: "package:cherrypick_generator/inject_generator.dart"
    builder_factories: ["injectBuilder"]
    build_extensions: {".dart": [".inject.cherrypick.g.dart"]}
    auto_apply: dependents
-    required_inputs: ["lib/**"]
-    runs_before: []
    build_to: source
+    applies_builders: ["source_gen|combining_builder"]
+  module_generator:
+    import: "package:cherrypick_generator/module_generator.dart"
+    builder_factories: ["moduleBuilder"]
+    build_extensions: {".dart": [".module.cherrypick.g.dart"]}
+    auto_apply: dependents
+    build_to: source
+    applies_builders: ["source_gen|combining_builder"]

 targets:
  $default:
--- a/cherrypick_generator/lib/cherrypick_custom_builders.dart
+++ b/cherrypick_generator/lib/cherrypick_custom_builders.dart
@@ -0,0 +1,110 @@
+import 'dart:async';
+import 'package:build/build.dart';
+import 'package:path/path.dart' as p;
+import 'package:source_gen/source_gen.dart';
+import 'inject_generator.dart';
+import 'module_generator.dart';
+
+/// Универсальный Builder для генераторов Cherrypick с поддержкой кастомного output_dir
+/// (указывает директорию для складывания сгенерированных файлов через build.yaml)
+class CustomOutputBuilder extends Builder {
+  final Generator generator;
+  final String extension;
+  final String outputDir;
+  final Map<String, List<String>> customBuildExtensions;
+
+  CustomOutputBuilder(this.generator, this.extension, this.outputDir, this.customBuildExtensions);
+
+  @override
+  Map<String, List<String>> get buildExtensions {
+    if (customBuildExtensions.isNotEmpty) {
+      return customBuildExtensions;
+    }
+    // Дефолт: рядом с исходником, как PartBuilder
+    return {
+      '.dart': [extension],
+    };
+  }
+
+  @override
+  Future<void> build(BuildStep buildStep) async {
+    final inputId = buildStep.inputId;
+    print('[CustomOutputBuilder] build() called for input: \\${inputId.path}');
+    final library = await buildStep.resolver.libraryFor(inputId);
+    print('[CustomOutputBuilder] resolved library for: \\${inputId.path}');
+    final generated = await generator.generate(LibraryReader(library), buildStep);
+    print('[CustomOutputBuilder] gen result for input: \\${inputId.path}, isNull: \\${generated == null}, isEmpty: \\${generated?.isEmpty}');
+    if (generated == null || generated.isEmpty) return;
+    String outputPath;
+    if (customBuildExtensions.isNotEmpty) {
+      // Кастомная директория/шаблон
+      final inputPath = inputId.path;
+      final relativeInput = p.relative(inputPath, from: 'lib/');
+      final parts = p.split(relativeInput);
+      String subdir = '';
+      String baseName = parts.last.replaceAll('.dart', '');
+      if (parts.length > 1) {
+        subdir = parts.first; // Например, 'di'
+      }
+      outputPath = subdir.isEmpty
+        ? p.join('lib', 'generated', '$baseName$extension')
+        : p.join('lib', 'generated', subdir, '$baseName$extension');
+    } else {
+      // Дефолт: рядом с исходником
+      outputPath = p.setExtension(inputId.path, extension);
+    }
+    final outputId = AssetId(inputId.package, outputPath);
+    // part of - всегда авто!
+    final partOfPath = p.relative(inputId.path, from: p.dirname(outputPath));
+    
+    // Check if generated code starts with formatting header
+    String finalCode;
+    if (generated.startsWith('// dart format width=80')) {
+      // Find the end of the header (after "// GENERATED CODE - DO NOT MODIFY BY HAND")
+      final lines = generated.split('\n');
+      int headerEndIndex = -1;
+      
+      for (int i = 0; i < lines.length; i++) {
+        if (lines[i].startsWith('// GENERATED CODE - DO NOT MODIFY BY HAND')) {
+          headerEndIndex = i;
+          break;
+        }
+      }
+      
+      if (headerEndIndex != -1) {
+        // Insert part of directive after the header
+        final headerLines = lines.sublist(0, headerEndIndex + 1);
+        final remainingLines = lines.sublist(headerEndIndex + 1);
+        
+        final headerPart = headerLines.join('\n');
+        final remainingPart = remainingLines.join('\n');
+        
+        // Preserve trailing newline if original had one
+        final hasTrailingNewline = generated.endsWith('\n');
+        finalCode = '$headerPart\n\npart of \'$partOfPath\';\n$remainingPart${hasTrailingNewline ? '' : '\n'}';
+      } else {
+        // Fallback: add part of at the beginning
+        finalCode = "part of '$partOfPath';\n\n$generated";
+      }
+    } else {
+      // No header, add part of at the beginning
+      finalCode = "part of '$partOfPath';\n\n$generated";
+    }
+    
+    print('[CustomOutputBuilder] writing to output: \\${outputId.path}');
+    await buildStep.writeAsString(outputId, finalCode);
+    print('[CustomOutputBuilder] successfully written for input: \\${inputId.path}');
+  }
+}
+
+Builder injectCustomBuilder(BuilderOptions options) {
+  final outputDir = options.config['output_dir'] as String? ?? '';
+  final buildExtensions = (options.config['build_extensions'] as Map?)?.map((k,v)=>MapEntry(k.toString(), (v as List).map((item)=>item.toString()).toList())) ?? {};
+  return CustomOutputBuilder(InjectGenerator(), '.inject.cherrypick.g.dart', outputDir, buildExtensions);
+}
+
+Builder moduleCustomBuilder(BuilderOptions options) {
+  final outputDir = options.config['output_dir'] as String? ?? '';
+  final buildExtensions = (options.config['build_extensions'] as Map?)?.map((k,v)=>MapEntry(k.toString(), (v as List).map((item)=>item.toString()).toList())) ?? {};
+  return CustomOutputBuilder(ModuleGenerator(), '.module.cherrypick.g.dart', outputDir, buildExtensions);
+}
--- a/cherrypick_generator/lib/inject_generator.dart
+++ b/cherrypick_generator/lib/inject_generator.dart
@@ -13,12 +13,16 @@

 import 'dart:async';
 import 'package:analyzer/dart/constant/value.dart';
-import 'package:analyzer/dart/element/nullability_suffix.dart';
-import 'package:analyzer/dart/element/type.dart';
+
+
 import 'package:build/build.dart';
 import 'package:source_gen/source_gen.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:cherrypick_annotations/cherrypick_annotations.dart' as ann;
+import 'cherrypick_custom_builders.dart' as custom;
+import 'src/exceptions.dart';
+import 'src/type_parser.dart';
+import 'src/annotation_validator.dart';

 /// InjectGenerator generates a mixin for a class marked with @injectable()
 /// and injects all fields annotated with @inject(), using CherryPick DI.
@@ -49,34 +53,68 @@ class InjectGenerator extends GeneratorForAnnotation<ann.injectable> {
    BuildStep buildStep,
  ) {
    if (element is! ClassElement) {
-      throw InvalidGenerationSourceError(
-        '@injectable() can only be applied to classes.',
+      throw CherryPickGeneratorException(
+        '@injectable() can only be applied to classes',
        element: element,
+        category: 'INVALID_TARGET',
+        suggestion: 'Apply @injectable() to a class instead of ${element.runtimeType}',
      );
    }

    final classElement = element;
+    
+    try {
+      // Validate class annotations
+      AnnotationValidator.validateClassAnnotations(classElement);
+      
+      return _generateInjectionCode(classElement);
+    } catch (e) {
+      if (e is CherryPickGeneratorException) {
+        rethrow;
+      }
+      throw CodeGenerationException(
+        'Failed to generate injection code: $e',
+        element: classElement,
+        suggestion: 'Check that all @inject fields have valid types and annotations',
+      );
+    }
+  }
+  
+  /// Generates the injection code for a class
+  String _generateInjectionCode(ClassElement classElement) {
    final className = classElement.name;
    final mixinName = '_\$$className';
    
-    final buffer = StringBuffer()
-      ..writeln('mixin $mixinName {')
-      ..writeln('  void _inject($className instance) {');
-
    // Collect and process all @inject fields.
-    // Собираем и обрабатываем все поля с @inject.
-    final injectFields =
-        classElement.fields.where(_isInjectField).map(_parseInjectField);
+    final injectFields = classElement.fields
+        .where(_isInjectField)
+        .map((field) => _parseInjectField(field, classElement))
+        .toList();

+    final buffer = StringBuffer()
+      ..writeln('// dart format width=80')
+      ..writeln('// GENERATED CODE - DO NOT MODIFY BY HAND')
+      ..writeln()
+      ..writeln('// **************************************************************************')
+      ..writeln('// InjectGenerator')
+      ..writeln('// **************************************************************************')
+      ..writeln()
+      ..writeln('mixin $mixinName {');
+
+    if (injectFields.isEmpty) {
+      // For empty classes, generate a method with empty body
+      buffer.writeln('  void _inject($className instance) {}');
+    } else {
+      buffer.writeln('  void _inject($className instance) {');
      for (final parsedField in injectFields) {
        buffer.writeln(_generateInjectionLine(parsedField));
      }
+      buffer.writeln('  }');
+    }
    
-    buffer
-      ..writeln('  }')
-      ..writeln('}');
+    buffer.writeln('}');

-    return buffer.toString();
+    return '${buffer.toString()}\n';
  }

  /// Checks if a field has the @inject annotation.
@@ -93,7 +131,16 @@ class InjectGenerator extends GeneratorForAnnotation<ann.injectable> {
  ///
  /// Разбирает поле на наличие модификаторов scope/named и выясняет его тип.
  /// Возвращает [_ParsedInjectField] с информацией о внедрении.
-  static _ParsedInjectField _parseInjectField(FieldElement field) {
+  static _ParsedInjectField _parseInjectField(FieldElement field, ClassElement classElement) {
+    try {
+      // Validate field annotations
+      AnnotationValidator.validateFieldAnnotations(field);
+      
+      // Parse type using improved type parser
+      final parsedType = TypeParser.parseType(field.type, field);
+      TypeParser.validateInjectableType(parsedType, field);
+      
+      // Extract metadata
      String? scopeName;
      String? namedValue;

@@ -107,36 +154,28 @@ class InjectGenerator extends GeneratorForAnnotation<ann.injectable> {
        }
      }

-    final DartType dartType = field.type;
-    String coreTypeName;
-    bool isFuture;
-
-    if (dartType.isDartAsyncFuture) {
-      final ParameterizedType paramType = dartType as ParameterizedType;
-      coreTypeName = paramType.typeArguments.first.getDisplayString();
-      isFuture = true;
-    } else {
-      coreTypeName = dartType.getDisplayString();
-      isFuture = false;
-    }
-
-    // ***
-    // Добавим определение nullable для типа (например PostRepository? или Future<PostRepository?>)
-    bool isNullable = dartType.nullabilitySuffix ==
-            NullabilitySuffix.question ||
-        (dartType is ParameterizedType &&
-            (dartType)
-                .typeArguments
-                .any((t) => t.nullabilitySuffix == NullabilitySuffix.question));
-
      return _ParsedInjectField(
        fieldName: field.name,
-      coreType: coreTypeName.replaceAll('?', ''), // удаляем "?" на всякий
-      isFuture: isFuture,
-      isNullable: isNullable,
+        parsedType: parsedType,
        scopeName: scopeName,
        namedValue: namedValue,
      );
+    } catch (e) {
+      if (e is CherryPickGeneratorException) {
+        rethrow;
+      }
+      throw DependencyResolutionException(
+        'Failed to parse inject field "${field.name}"',
+        element: field,
+        suggestion: 'Check that the field type is valid and properly imported',
+        context: {
+          'field_name': field.name,
+          'field_type': field.type.getDisplayString(),
+          'class_name': classElement.name,
+          'error': e.toString(),
+        },
+      );
+    }
  }

  /// Generates a line of code that performs the dependency injection for a field.
@@ -145,24 +184,47 @@ class InjectGenerator extends GeneratorForAnnotation<ann.injectable> {
  /// Генерирует строку кода, которая внедряет зависимость для поля.
  /// Учитывает resolve/resolveAsync, scoping и named qualifier.
  String _generateInjectionLine(_ParsedInjectField field) {
-    // Используем tryResolve для nullable, иначе resolve
-    final resolveMethod = field.isFuture
-        ? (field.isNullable
-            ? 'tryResolveAsync<${field.coreType}>'
-            : 'resolveAsync<${field.coreType}>')
-        : (field.isNullable
-            ? 'tryResolve<${field.coreType}>'
-            : 'resolve<${field.coreType}>');
+    final resolveMethod = '${field.parsedType.resolveMethodName}<${field.parsedType.codeGenType}>';
+    final fieldName = field.fieldName;
    
+    // Build the scope call
    final openCall = (field.scopeName != null && field.scopeName!.isNotEmpty)
        ? "CherryPick.openScope(scopeName: '${field.scopeName}')"
        : "CherryPick.openRootScope()";
    
-    final params = (field.namedValue != null && field.namedValue!.isNotEmpty)
-        ? "(named: '${field.namedValue}')"
-        : '()';
+    // Build the parameters
+    final hasNamedParam = field.namedValue != null && field.namedValue!.isNotEmpty;
+    final params = hasNamedParam ? "(named: '${field.namedValue}')" : '()';
    
-    return "    instance.${field.fieldName} = $openCall.$resolveMethod$params;";
+    // Create the full line
+    final fullLine = "    instance.$fieldName = $openCall.$resolveMethod$params;";
+    
+    // Check if line is too long (dart format width=80, accounting for indentation)
+    if (fullLine.length <= 80) {
+      return fullLine;
+    }
+    
+    // Format long lines with proper line breaks
+    if (hasNamedParam && field.scopeName != null && field.scopeName!.isNotEmpty) {
+      // For scoped calls with named parameters, break after openScope
+      return "    instance.$fieldName = CherryPick.openScope(\n"
+             "      scopeName: '${field.scopeName}',\n"
+             "    ).$resolveMethod(named: '${field.namedValue}');";
+    } else if (hasNamedParam) {
+      // For named parameters without scope, break after the method call
+      return "    instance.$fieldName = $openCall.$resolveMethod(\n"
+             "      named: '${field.namedValue}',\n"
+             "    );";
+    } else if (field.scopeName != null && field.scopeName!.isNotEmpty) {
+      // For scoped calls without named params, break after openScope with proper parameter formatting
+      return "    instance.$fieldName = CherryPick.openScope(\n"
+             "      scopeName: '${field.scopeName}',\n"
+             "    ).$resolveMethod();";
+    } else {
+      // For simple long calls, break after openRootScope
+      return "    instance.$fieldName = $openCall\n"
+             "        .$resolveMethod();";
+    }
  }
 }

@@ -175,12 +237,8 @@ class _ParsedInjectField {
  /// The name of the field / Имя поля.
  final String fieldName;

-  /// The base type name (T or Future<T>) / Базовый тип (T или тип из Future<T>).
-  final String coreType;
-
-  /// True if the field type is Future<T>; false otherwise
-  /// Истина, если поле — Future<T>, иначе — ложь.
-  final bool isFuture;
+  /// Parsed type information / Информация о типе поля.
+  final ParsedType parsedType;

  /// Optional scope annotation argument / Опциональное имя scope.
  final String? scopeName;
@@ -188,20 +246,22 @@ class _ParsedInjectField {
  /// Optional named annotation argument / Опциональное имя named.
  final String? namedValue;

-  final bool isNullable;
-
  _ParsedInjectField({
    required this.fieldName,
-    required this.coreType,
-    required this.isFuture,
-    required this.isNullable,
+    required this.parsedType,
    this.scopeName,
    this.namedValue,
  });
+  
+  @override
+  String toString() {
+    return '_ParsedInjectField(fieldName: $fieldName, parsedType: $parsedType, '
+           'scopeName: $scopeName, namedValue: $namedValue)';
+  }
 }

 /// Builder factory. Used by build_runner.
 ///
 /// Фабрика билдера. Используется build_runner.
 Builder injectBuilder(BuilderOptions options) =>
-    PartBuilder([InjectGenerator()], '.inject.cherrypick.g.dart');
+    custom.injectCustomBuilder(options);
--- a/cherrypick_generator/lib/module_generator.dart
+++ b/cherrypick_generator/lib/module_generator.dart
@@ -15,9 +15,10 @@ import 'package:analyzer/dart/element/element.dart';
 import 'package:build/build.dart';
 import 'package:source_gen/source_gen.dart';
 import 'package:cherrypick_annotations/cherrypick_annotations.dart' as ann;
-
 import 'src/generated_class.dart';
-
+import 'src/exceptions.dart';
+import 'src/annotation_validator.dart';
+import 'cherrypick_custom_builders.dart' as custom;
 /// ---------------------------------------------------------------------------
 /// ModuleGenerator for code generation of dependency-injected modules.
 ///
@@ -62,20 +63,40 @@ class ModuleGenerator extends GeneratorForAnnotation<ann.module> {
    // Only classes are supported for @module() annotation
    // Обрабатываются только классы (другие элементы — ошибка)
    if (element is! ClassElement) {
-      throw InvalidGenerationSourceError(
-        '@module() can only be applied to classes. / @module() может быть применён только к классам.',
+      throw CherryPickGeneratorException(
+        '@module() can only be applied to classes',
        element: element,
+        category: 'INVALID_TARGET',
+        suggestion: 'Apply @module() to a class instead of ${element.runtimeType}',
      );
    }

    final classElement = element;

-    // Build a representation of the generated bindings based on class methods /
-    // Создаёт объект, описывающий, какие биндинги нужно сгенерировать на основании методов класса
+    try {
+      // Validate class annotations
+      AnnotationValidator.validateClassAnnotations(classElement);
+      
+      // Build a representation of the generated bindings based on class methods
      final generatedClass = GeneratedClass.fromClassElement(classElement);

-    // Generate the resulting Dart code / Генерирует итоговый Dart-код
+      // Generate the resulting Dart code
      return generatedClass.generate();
+    } catch (e) {
+      if (e is CherryPickGeneratorException) {
+        rethrow;
+      }
+      throw CodeGenerationException(
+        'Failed to generate module code for class "${classElement.name}"',
+        element: classElement,
+        suggestion: 'Check that all methods have valid @instance or @provide annotations',
+        context: {
+          'class_name': classElement.name,
+          'method_count': classElement.methods.length,
+          'error': e.toString(),
+        },
+      );
+    }
  }
 }

@@ -89,5 +110,8 @@ class ModuleGenerator extends GeneratorForAnnotation<ann.module> {
 /// Возвращает Builder, используемый build_runner для генерации кода для всех
 /// файлов, где встречается @module().
 /// ---------------------------------------------------------------------------
+
+
+
 Builder moduleBuilder(BuilderOptions options) =>
-    PartBuilder([ModuleGenerator()], '.module.cherrypick.g.dart');
+    custom.moduleCustomBuilder(options);
--- a/cherrypick_generator/lib/src/annotation_validator.dart
+++ b/cherrypick_generator/lib/src/annotation_validator.dart
@@ -0,0 +1,314 @@
+//
+// 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.
+//
+
+import 'package:analyzer/dart/element/element.dart';
+import 'exceptions.dart';
+import 'metadata_utils.dart';
+
+/// Validates annotation combinations and usage patterns
+class AnnotationValidator {
+  /// Validates annotations on a method element
+  static void validateMethodAnnotations(MethodElement method) {
+    final annotations = _getAnnotationNames(method.metadata);
+    
+    _validateMutuallyExclusiveAnnotations(method, annotations);
+    _validateAnnotationCombinations(method, annotations);
+    _validateAnnotationParameters(method);
+  }
+
+  /// Validates annotations on a field element
+  static void validateFieldAnnotations(FieldElement field) {
+    final annotations = _getAnnotationNames(field.metadata);
+    
+    _validateInjectFieldAnnotations(field, annotations);
+  }
+
+  /// Validates annotations on a class element
+  static void validateClassAnnotations(ClassElement classElement) {
+    final annotations = _getAnnotationNames(classElement.metadata);
+    
+    _validateModuleClassAnnotations(classElement, annotations);
+    _validateInjectableClassAnnotations(classElement, annotations);
+  }
+
+  static List<String> _getAnnotationNames(List<ElementAnnotation> metadata) {
+    return metadata
+        .map((m) => m.computeConstantValue()?.type?.getDisplayString())
+        .where((name) => name != null)
+        .cast<String>()
+        .toList();
+  }
+
+  static void _validateMutuallyExclusiveAnnotations(
+    MethodElement method,
+    List<String> annotations,
+  ) {
+    // @instance and @provide are mutually exclusive
+    if (annotations.contains('instance') && annotations.contains('provide')) {
+      throw AnnotationValidationException(
+        'Method cannot have both @instance and @provide annotations',
+        element: method,
+        suggestion: 'Use either @instance for direct instances or @provide for factory methods',
+        context: {
+          'method_name': method.displayName,
+          'annotations': annotations,
+        },
+      );
+    }
+  }
+
+  static void _validateAnnotationCombinations(
+    MethodElement method,
+    List<String> annotations,
+  ) {
+    // @params can only be used with @provide
+    if (annotations.contains('params') && !annotations.contains('provide')) {
+      throw AnnotationValidationException(
+        '@params annotation can only be used with @provide annotation',
+        element: method,
+        suggestion: 'Remove @params or add @provide annotation',
+        context: {
+          'method_name': method.displayName,
+          'annotations': annotations,
+        },
+      );
+    }
+
+    // Methods must have either @instance or @provide
+    if (!annotations.contains('instance') && !annotations.contains('provide')) {
+      throw AnnotationValidationException(
+        'Method must be marked with either @instance or @provide annotation',
+        element: method,
+        suggestion: 'Add @instance() for direct instances or @provide() for factory methods',
+        context: {
+          'method_name': method.displayName,
+          'available_annotations': annotations,
+        },
+      );
+    }
+
+    // @singleton validation
+    if (annotations.contains('singleton')) {
+      _validateSingletonUsage(method, annotations);
+    }
+  }
+
+  static void _validateSingletonUsage(
+    MethodElement method,
+    List<String> annotations,
+  ) {
+    // Singleton with params might not make sense in some contexts
+    if (annotations.contains('params')) {
+      // This is a warning, not an error - could be useful for parameterized singletons
+      // We could add a warning system later
+    }
+
+    // Check if return type is suitable for singleton
+    final returnType = method.returnType.getDisplayString();
+    if (returnType == 'void') {
+      throw AnnotationValidationException(
+        'Singleton methods cannot return void',
+        element: method,
+        suggestion: 'Remove @singleton annotation or change return type',
+        context: {
+          'method_name': method.displayName,
+          'return_type': returnType,
+        },
+      );
+    }
+  }
+
+  static void _validateAnnotationParameters(MethodElement method) {
+    // Validate @named annotation parameters
+    final namedValue = MetadataUtils.getNamedValue(method.metadata);
+    if (namedValue != null) {
+      if (namedValue.isEmpty) {
+        throw AnnotationValidationException(
+          '@named annotation cannot have empty value',
+          element: method,
+          suggestion: 'Provide a non-empty string value for @named annotation',
+          context: {
+            'method_name': method.displayName,
+            'named_value': namedValue,
+          },
+        );
+      }
+
+      // Check for valid naming conventions
+      if (!RegExp(r'^[a-zA-Z_][a-zA-Z0-9_]*$').hasMatch(namedValue)) {
+        throw AnnotationValidationException(
+          '@named value should follow valid identifier naming conventions',
+          element: method,
+          suggestion: 'Use alphanumeric characters and underscores only, starting with a letter or underscore',
+          context: {
+            'method_name': method.displayName,
+            'named_value': namedValue,
+          },
+        );
+      }
+    }
+
+    // Validate method parameters for @params usage
+    for (final param in method.parameters) {
+      final paramAnnotations = _getAnnotationNames(param.metadata);
+      if (paramAnnotations.contains('params')) {
+        _validateParamsParameter(param, method);
+      }
+    }
+  }
+
+  static void _validateParamsParameter(ParameterElement param, MethodElement method) {
+    // @params parameter should typically be dynamic or Map<String, dynamic>
+    final paramType = param.type.getDisplayString();
+    
+    if (paramType != 'dynamic' && 
+        paramType != 'Map<String, dynamic>' && 
+        paramType != 'Map<String, dynamic>?') {
+      // This is more of a warning - other types might be valid
+      // We could add a warning system for this
+    }
+
+    // Check if parameter is required when using @params
+    try {
+      final hasDefault = (param as dynamic).defaultValue != null;
+      if (param.isRequired && !hasDefault) {
+        // This might be intentional, so we don't throw an error
+        // but we could warn about it
+      }
+    } catch (e) {
+      // Ignore if defaultValue is not available in this analyzer version
+    }
+  }
+
+  static void _validateInjectFieldAnnotations(
+    FieldElement field,
+    List<String> annotations,
+  ) {
+    if (!annotations.contains('inject')) {
+      return; // Not an inject field, nothing to validate
+    }
+
+    // Check if field type is suitable for injection
+    final fieldType = field.type.getDisplayString();
+    if (fieldType == 'void') {
+      throw AnnotationValidationException(
+        'Cannot inject void type',
+        element: field,
+        suggestion: 'Use a concrete type instead of void',
+        context: {
+          'field_name': field.displayName,
+          'field_type': fieldType,
+        },
+      );
+    }
+
+    // Validate scope annotation if present
+    for (final meta in field.metadata) {
+      final obj = meta.computeConstantValue();
+      final type = obj?.type?.getDisplayString();
+      if (type == 'scope') {
+        // Empty scope name is treated as no scope (uses root scope)
+        // This is allowed for backward compatibility and convenience
+      }
+    }
+  }
+
+  static void _validateModuleClassAnnotations(
+    ClassElement classElement,
+    List<String> annotations,
+  ) {
+    if (!annotations.contains('module')) {
+      return; // Not a module class
+    }
+
+    // Check if class has public methods
+    final publicMethods = classElement.methods.where((m) => m.isPublic).toList();
+    if (publicMethods.isEmpty) {
+      throw AnnotationValidationException(
+        'Module class must have at least one public method',
+        element: classElement,
+        suggestion: 'Add public methods with @instance or @provide annotations',
+        context: {
+          'class_name': classElement.displayName,
+          'method_count': publicMethods.length,
+        },
+      );
+    }
+
+    // Validate that public methods have appropriate annotations
+    for (final method in publicMethods) {
+      final methodAnnotations = _getAnnotationNames(method.metadata);
+      if (!methodAnnotations.contains('instance') && !methodAnnotations.contains('provide')) {
+        throw AnnotationValidationException(
+          'Public methods in module class must have @instance or @provide annotation',
+          element: method,
+          suggestion: 'Add @instance() or @provide() annotation to the method',
+          context: {
+            'class_name': classElement.displayName,
+            'method_name': method.displayName,
+          },
+        );
+      }
+    }
+  }
+
+  static void _validateInjectableClassAnnotations(
+    ClassElement classElement,
+    List<String> annotations,
+  ) {
+    if (!annotations.contains('injectable')) {
+      return; // Not an injectable class
+    }
+
+    // Check if class has injectable fields
+    final injectFields = classElement.fields.where((f) {
+      final fieldAnnotations = _getAnnotationNames(f.metadata);
+      return fieldAnnotations.contains('inject');
+    }).toList();
+
+    // Allow injectable classes without @inject fields to generate empty mixins
+    // This can be useful for classes that will have @inject fields added later
+    // or for testing purposes
+    if (injectFields.isEmpty) {
+      // Just log a warning but don't throw an exception
+      // print('Warning: Injectable class ${classElement.displayName} has no @inject fields');
+    }
+
+    // Validate that injectable fields are properly declared
+    for (final field in injectFields) {
+      // Injectable fields should be late final for immutability after injection
+      if (!field.isFinal) {
+        throw AnnotationValidationException(
+          'Injectable fields should be final for immutability',
+          element: field,
+          suggestion: 'Add final keyword to injectable field (preferably late final)',
+          context: {
+            'class_name': classElement.displayName,
+            'field_name': field.displayName,
+          },
+        );
+      }
+      
+      // Check if field is late (recommended pattern)
+      try {
+        final isLate = (field as dynamic).isLate ?? false;
+        if (!isLate) {
+          // This is a warning, not an error - late final is recommended but not required
+          // We could add a warning system later
+        }
+      } catch (e) {
+        // Ignore if isLate is not available in this analyzer version
+      }
+    }
+  }
+}
--- a/cherrypick_generator/lib/src/bind_spec.dart
+++ b/cherrypick_generator/lib/src/bind_spec.dart
@@ -12,10 +12,13 @@
 //

 import 'package:analyzer/dart/element/element.dart';
-import 'package:source_gen/source_gen.dart';
+

 import 'bind_parameters_spec.dart';
 import 'metadata_utils.dart';
+import 'exceptions.dart';
+import 'type_parser.dart';
+import 'annotation_validator.dart';

 enum BindingType {
  instance,
@@ -105,10 +108,42 @@ class BindSpec {
    final indentStr = ' ' * indent;
    final provide = _generateProvideClause(indent);
    final postfix = _generatePostfix();
-    return '$indentStr'
-        'bind<$returnType>()'
-        '$provide'
-        '$postfix;';
+    
+    // Create the full single-line version first
+    final singleLine = '${indentStr}bind<$returnType>()$provide$postfix;';
+    
+    // Check if we need multiline formatting
+    final needsMultiline = singleLine.length > 80 || provide.contains('\n');
+    
+    if (!needsMultiline) {
+      return singleLine;
+    }
+    
+    // For multiline formatting, check if we need to break after bind<Type>()
+    if (provide.contains('\n')) {
+      // Provider clause is already multiline
+      if (postfix.isNotEmpty) {
+        // If there's a postfix, break after bind<Type>()
+        final multilinePostfix = _generateMultilinePostfix(indent);
+        return '${indentStr}bind<$returnType>()'  
+               '\n${' ' * (indent + 4)}$provide'
+               '$multilinePostfix;';
+      } else {
+        // No postfix, keep bind<Type>() with provide start
+        return '${indentStr}bind<$returnType>()$provide;';
+      }
+    } else {
+      // Simple multiline: break after bind<Type>()
+      if (postfix.isNotEmpty) {
+        final multilinePostfix = _generateMultilinePostfix(indent);
+        return '${indentStr}bind<$returnType>()'  
+               '\n${' ' * (indent + 4)}$provide'
+               '$multilinePostfix;';
+      } else {
+        return '${indentStr}bind<$returnType>()'  
+               '\n${' ' * (indent + 4)}$provide;';
+      }
+    }
  }

  // Internal method: decides how the provide clause should be generated by param kind.
@@ -122,6 +157,7 @@ class BindSpec {
    // Safe variable name for parameters.
    const paramVar = 'args';
    final fnArgs = parameters.map((p) => p.generateArg(paramVar)).join(', ');
+    // Use multiline format only if args are long or contain newlines
    final multiLine = fnArgs.length > 60 || fnArgs.contains('\n');
    switch (bindingType) {
      case BindingType.instance:
@@ -146,7 +182,11 @@ class BindSpec {
  /// EN / RU: Supports only injected dependencies, not runtime (@params).
  String _generatePlainProvideClause(int indent) {
    final argsStr = parameters.map((p) => p.generateArg()).join(', ');
-    final multiLine = argsStr.length > 60 || argsStr.contains('\n');
+    
+    // Check if we need multiline formatting based on total line length
+    final singleLineCall = '$methodName($argsStr)';
+    final needsMultiline = singleLineCall.length >= 45 || argsStr.contains('\n');
+    
    switch (bindingType) {
      case BindingType.instance:
        return isAsyncInstance
@@ -154,13 +194,21 @@ class BindSpec {
            : '.toInstance($methodName($argsStr))';
      case BindingType.provide:
        if (isAsyncProvide) {
-          return multiLine
-              ? '.toProvideAsync(\n${' ' * (indent + 2)}() => $methodName($argsStr))'
-              : '.toProvideAsync(() => $methodName($argsStr))';
+          if (needsMultiline) {
+            final lambdaIndent = (isSingleton || named != null) ? indent + 6 : indent + 2;
+            final closingIndent = (isSingleton || named != null) ? indent + 4 : indent;
+            return '.toProvideAsync(\n${' ' * lambdaIndent}() => $methodName($argsStr),\n${' ' * closingIndent})';
          } else {
-          return multiLine
-              ? '.toProvide(\n${' ' * (indent + 2)}() => $methodName($argsStr))'
-              : '.toProvide(() => $methodName($argsStr))';
+            return '.toProvideAsync(() => $methodName($argsStr))';
+          }
+        } else {
+          if (needsMultiline) {
+            final lambdaIndent = (isSingleton || named != null) ? indent + 6 : indent + 2;
+            final closingIndent = (isSingleton || named != null) ? indent + 4 : indent;
+            return '.toProvide(\n${' ' * lambdaIndent}() => $methodName($argsStr),\n${' ' * closingIndent})';
+          } else {
+            return '.toProvide(() => $methodName($argsStr))';
+          }
        }
    }
  }
@@ -172,6 +220,20 @@ class BindSpec {
    return '$namePart$singletonPart';
  }
  
+  /// EN / RU: Generates multiline postfix with proper indentation.
+  String _generateMultilinePostfix(int indent) {
+    final parts = <String>[];
+    if (named != null) {
+      parts.add(".withName('$named')");
+    }
+    if (isSingleton) {
+      parts.add('.singleton()');
+    }
+    if (parts.isEmpty) return '';
+    
+    return parts.map((part) => '\n${' ' * (indent + 4)}$part').join('');
+  }
+
  /// -------------------------------------------------------------------------
  /// fromMethod
  ///
@@ -186,9 +248,15 @@ class BindSpec {
  /// асинхронности. Если нет @instance или @provide — кидает ошибку.
  /// -------------------------------------------------------------------------
  static BindSpec fromMethod(MethodElement method) {
-    var returnType = method.returnType.getDisplayString();
+    try {
+      // Validate method annotations
+      AnnotationValidator.validateMethodAnnotations(method);
+      
+      // Parse return type using improved type parser
+      final parsedReturnType = TypeParser.parseType(method.returnType, method);
      
      final methodName = method.displayName;
+      
      // Check for @singleton annotation.
      final isSingleton = MetadataUtils.anyMeta(method.metadata, 'singleton');

@@ -209,36 +277,41 @@ class BindSpec {
      // Determine bindingType: @instance or @provide.
      final hasInstance = MetadataUtils.anyMeta(method.metadata, 'instance');
      final hasProvide = MetadataUtils.anyMeta(method.metadata, 'provide');
+      
      if (!hasInstance && !hasProvide) {
-      throw InvalidGenerationSourceError(
-        'Method $methodName must be marked with @instance() or @provide().',
+        throw AnnotationValidationException(
+          'Method must be marked with either @instance() or @provide() annotation',
          element: method,
+          suggestion: 'Add @instance() for direct instances or @provide() for factory methods',
+          context: {
+            'method_name': methodName,
+            'return_type': parsedReturnType.displayString,
+          },
        );
      }
-    final bindingType =
-        hasInstance ? BindingType.instance : BindingType.provide;
+      
+      final bindingType = hasInstance ? BindingType.instance : BindingType.provide;

      // PROHIBIT @params with @instance bindings!
      if (bindingType == BindingType.instance && hasParams) {
-      throw InvalidGenerationSourceError(
-        '@params() (runtime arguments) cannot be used together with @instance() on method $methodName. '
-        'Use @provide() instead if you want runtime arguments.',
+        throw AnnotationValidationException(
+          '@params() (runtime arguments) cannot be used together with @instance()',
          element: method,
+          suggestion: 'Use @provide() instead if you want runtime arguments',
+          context: {
+            'method_name': methodName,
+            'binding_type': 'instance',
+            'has_params': hasParams,
+          },
        );
      }

-    // -- Extract inner type for Future<T> and set async flags.
-    bool isAsyncInstance = false;
-    bool isAsyncProvide = false;
-    final futureInnerType = _extractFutureInnerType(returnType);
-    if (futureInnerType != null) {
-      returnType = futureInnerType;
-      if (bindingType == BindingType.instance) isAsyncInstance = true;
-      if (bindingType == BindingType.provide) isAsyncProvide = true;
-    }
+      // Set async flags based on parsed type
+      final isAsyncInstance = bindingType == BindingType.instance && parsedReturnType.isFuture;
+      final isAsyncProvide = bindingType == BindingType.provide && parsedReturnType.isFuture;

      return BindSpec(
-      returnType: returnType,
+        returnType: parsedReturnType.codeGenType,
        methodName: methodName,
        isSingleton: isSingleton,
        named: named,
@@ -248,11 +321,20 @@ class BindSpec {
        isAsyncProvide: isAsyncProvide,
        hasParams: hasParams,
      );
+    } catch (e) {
+      if (e is CherryPickGeneratorException) {
+        rethrow;
+      }
+      throw CodeGenerationException(
+        'Failed to create BindSpec from method "${method.displayName}"',
+        element: method,
+        suggestion: 'Check that the method has valid annotations and return type',
+        context: {
+          'method_name': method.displayName,
+          'return_type': method.returnType.getDisplayString(),
+          'error': e.toString(),
+        },
+      );
    }
-
-  /// EN / RU: Extracts inner type from Future<T>, returns e.g. "T" or null.
-  static String? _extractFutureInnerType(String typeName) {
-    final match = RegExp(r'^Future<(.+)>$').firstMatch(typeName);
-    return match?.group(1)?.trim();
  }
 }
--- a/cherrypick_generator/lib/src/exceptions.dart
+++ b/cherrypick_generator/lib/src/exceptions.dart
@@ -0,0 +1,117 @@
+//
+// 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.
+//
+
+import 'package:analyzer/dart/element/element.dart';
+import 'package:source_gen/source_gen.dart';
+
+/// Enhanced exception class for CherryPick generator with detailed context information
+class CherryPickGeneratorException extends InvalidGenerationSourceError {
+  final String category;
+  final String? suggestion;
+  final Map<String, dynamic>? context;
+
+  CherryPickGeneratorException(
+    String message, {
+    required Element element,
+    required this.category,
+    this.suggestion,
+    this.context,
+  }) : super(
+          _formatMessage(message, category, suggestion, context, element),
+          element: element,
+        );
+
+  static String _formatMessage(
+    String message,
+    String category,
+    String? suggestion,
+    Map<String, dynamic>? context,
+    Element element,
+  ) {
+    final buffer = StringBuffer();
+    
+    // Header with category
+    buffer.writeln('[$category] $message');
+    
+    // Element context
+    buffer.writeln('');
+    buffer.writeln('Context:');
+    buffer.writeln('  Element: ${element.displayName}');
+    buffer.writeln('  Type: ${element.runtimeType}');
+    buffer.writeln('  Location: ${element.source?.fullName ?? 'unknown'}');
+    
+    // Note: enclosingElement may not be available in all analyzer versions
+    try {
+      final enclosing = (element as dynamic).enclosingElement;
+      if (enclosing != null) {
+        buffer.writeln('  Enclosing: ${enclosing.displayName}');
+      }
+    } catch (e) {
+      // Ignore if enclosingElement is not available
+    }
+    
+    // Additional context
+    if (context != null && context.isNotEmpty) {
+      buffer.writeln('');
+      buffer.writeln('Additional Context:');
+      context.forEach((key, value) {
+        buffer.writeln('  $key: $value');
+      });
+    }
+    
+    // Suggestion
+    if (suggestion != null) {
+      buffer.writeln('');
+      buffer.writeln('💡 Suggestion: $suggestion');
+    }
+    
+    return buffer.toString();
+  }
+}
+
+/// Specific exception types for different error categories
+class AnnotationValidationException extends CherryPickGeneratorException {
+  AnnotationValidationException(
+    super.message, {
+    required super.element,
+    super.suggestion,
+    super.context,
+  }) : super(category: 'ANNOTATION_VALIDATION');
+}
+
+class TypeParsingException extends CherryPickGeneratorException {
+  TypeParsingException(
+    super.message, {
+    required super.element,
+    super.suggestion,
+    super.context,
+  }) : super(category: 'TYPE_PARSING');
+}
+
+class CodeGenerationException extends CherryPickGeneratorException {
+  CodeGenerationException(
+    super.message, {
+    required super.element,
+    super.suggestion,
+    super.context,
+  }) : super(category: 'CODE_GENERATION');
+}
+
+class DependencyResolutionException extends CherryPickGeneratorException {
+  DependencyResolutionException(
+    super.message, {
+    required super.element,
+    super.suggestion,
+    super.context,
+  }) : super(category: 'DEPENDENCY_RESOLUTION');
+}
--- a/cherrypick_generator/lib/src/generated_class.dart
+++ b/cherrypick_generator/lib/src/generated_class.dart
@@ -49,10 +49,15 @@ class GeneratedClass {
  /// Список всех обнаруженных биндингов
  final List<BindSpec> binds;

+  /// Source file name for the part directive
+  /// Имя исходного файла для part директивы
+  final String sourceFile;
+
  GeneratedClass(
    this.className,
    this.generatedClassName,
    this.binds,
+    this.sourceFile,
  );

  /// -------------------------------------------------------------------------
@@ -72,13 +77,15 @@ class GeneratedClass {
    final className = element.displayName;
    // Generated class name with '$' prefix (standard for generated Dart code).
    final generatedClassName = r'$' + className;
+    // Get source file name
+    final sourceFile = element.source.shortName;
    // Collect bindings for all non-abstract methods.
    final binds = element.methods
        .where((m) => !m.isAbstract)
        .map(BindSpec.fromMethod)
        .toList();

-    return GeneratedClass(className, generatedClassName, binds);
+    return GeneratedClass(className, generatedClassName, binds, sourceFile);
  }

  /// -------------------------------------------------------------------------
@@ -95,11 +102,17 @@ class GeneratedClass {
  /// и регистрирует все зависимости через методы bind<Type>()...
  /// -------------------------------------------------------------------------
  String generate() {
-    final buffer = StringBuffer();
-
-    buffer.writeln('final class $generatedClassName extends $className {');
-    buffer.writeln(' @override');
-    buffer.writeln(' void builder(Scope currentScope) {');
+    final buffer = StringBuffer()
+      ..writeln('// dart format width=80')
+      ..writeln('// GENERATED CODE - DO NOT MODIFY BY HAND')
+      ..writeln()
+      ..writeln('// **************************************************************************')
+      ..writeln('// ModuleGenerator')
+      ..writeln('// **************************************************************************')
+      ..writeln()
+      ..writeln('final class $generatedClassName extends $className {')
+      ..writeln('  @override')
+      ..writeln('  void builder(Scope currentScope) {');

    // For each binding, generate bind<Type>() code string.
    // Для каждого биндинга — генерируем строку bind<Type>()...
@@ -107,8 +120,9 @@ class GeneratedClass {
      buffer.writeln(bind.generateBind(4));
    }

-    buffer.writeln(' }');
-    buffer.writeln('}');
+    buffer
+      ..writeln('  }')
+      ..writeln('}');

    return buffer.toString();
  }
--- a/cherrypick_generator/lib/src/type_parser.dart
+++ b/cherrypick_generator/lib/src/type_parser.dart
@@ -0,0 +1,216 @@
+//
+// 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.
+//
+
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/element/nullability_suffix.dart';
+import 'package:analyzer/dart/element/type.dart';
+import 'exceptions.dart';
+
+/// Enhanced type parser that uses AST analysis instead of regular expressions
+class TypeParser {
+  /// Parses a DartType and extracts detailed type information
+  static ParsedType parseType(DartType dartType, Element context) {
+    try {
+      return _parseTypeInternal(dartType, context);
+    } catch (e) {
+      throw TypeParsingException(
+        'Failed to parse type: ${dartType.getDisplayString()}',
+        element: context,
+        suggestion: 'Ensure the type is properly imported and accessible',
+        context: {
+          'original_type': dartType.getDisplayString(),
+          'error': e.toString(),
+        },
+      );
+    }
+  }
+
+  static ParsedType _parseTypeInternal(DartType dartType, Element context) {
+    final displayString = dartType.getDisplayString();
+    final isNullable = dartType.nullabilitySuffix == NullabilitySuffix.question;
+    
+    // Check if it's a Future type
+    if (dartType.isDartAsyncFuture) {
+      return _parseFutureType(dartType, context, isNullable);
+    }
+    
+    // Check if it's a generic type (List, Map, etc.)
+    if (dartType is ParameterizedType && dartType.typeArguments.isNotEmpty) {
+      return _parseGenericType(dartType, context, isNullable);
+    }
+    
+    // Simple type
+    return ParsedType(
+      displayString: displayString,
+      coreType: displayString.replaceAll('?', ''),
+      isNullable: isNullable,
+      isFuture: false,
+      isGeneric: false,
+      typeArguments: [],
+    );
+  }
+
+  static ParsedType _parseFutureType(DartType dartType, Element context, bool isNullable) {
+    if (dartType is! ParameterizedType || dartType.typeArguments.isEmpty) {
+      throw TypeParsingException(
+        'Future type must have a type argument',
+        element: context,
+        suggestion: 'Use Future<T> instead of raw Future',
+        context: {'type': dartType.getDisplayString()},
+      );
+    }
+
+    final innerType = dartType.typeArguments.first;
+    final innerParsed = _parseTypeInternal(innerType, context);
+    
+    return ParsedType(
+      displayString: dartType.getDisplayString(),
+      coreType: innerParsed.coreType,
+      isNullable: isNullable || innerParsed.isNullable,
+      isFuture: true,
+      isGeneric: innerParsed.isGeneric,
+      typeArguments: innerParsed.typeArguments,
+      innerType: innerParsed,
+    );
+  }
+
+  static ParsedType _parseGenericType(ParameterizedType dartType, Element context, bool isNullable) {
+    final typeArguments = dartType.typeArguments
+        .map((arg) => _parseTypeInternal(arg, context))
+        .toList();
+    
+    final baseType = dartType.element?.name ?? dartType.getDisplayString();
+    
+    return ParsedType(
+      displayString: dartType.getDisplayString(),
+      coreType: baseType,
+      isNullable: isNullable,
+      isFuture: false,
+      isGeneric: true,
+      typeArguments: typeArguments,
+    );
+  }
+
+  /// Validates that a type is suitable for dependency injection
+  static void validateInjectableType(ParsedType parsedType, Element context) {
+    // Check for void type
+    if (parsedType.coreType == 'void') {
+      throw TypeParsingException(
+        'Cannot inject void type',
+        element: context,
+        suggestion: 'Use a concrete type instead of void',
+      );
+    }
+
+    // Check for dynamic type (warning)
+    if (parsedType.coreType == 'dynamic') {
+      // This could be a warning instead of an error
+      throw TypeParsingException(
+        'Using dynamic type reduces type safety',
+        element: context,
+        suggestion: 'Consider using a specific type instead of dynamic',
+      );
+    }
+
+    // Validate nested types for complex generics
+    for (final typeArg in parsedType.typeArguments) {
+      validateInjectableType(typeArg, context);
+    }
+  }
+}
+
+/// Represents a parsed type with detailed information
+class ParsedType {
+  /// The full display string of the type (e.g., "Future<List<String>?>")
+  final String displayString;
+  
+  /// The core type name without nullability and Future wrapper (e.g., "List<String>")
+  final String coreType;
+  
+  /// Whether the type is nullable
+  final bool isNullable;
+  
+  /// Whether the type is wrapped in Future
+  final bool isFuture;
+  
+  /// Whether the type has generic parameters
+  final bool isGeneric;
+  
+  /// Parsed type arguments for generic types
+  final List<ParsedType> typeArguments;
+  
+  /// For Future types, the inner type
+  final ParsedType? innerType;
+
+  const ParsedType({
+    required this.displayString,
+    required this.coreType,
+    required this.isNullable,
+    required this.isFuture,
+    required this.isGeneric,
+    required this.typeArguments,
+    this.innerType,
+  });
+
+  /// Returns the type string suitable for code generation
+  String get codeGenType {
+    if (isFuture && innerType != null) {
+      return innerType!.codeGenType;
+    }
+    
+    // For generic types, include type arguments
+    if (isGeneric && typeArguments.isNotEmpty) {
+      final args = typeArguments.map((arg) => arg.codeGenType).join(', ');
+      return '$coreType<$args>';
+    }
+    
+    return coreType;
+  }
+
+  /// Returns whether this type should use tryResolve instead of resolve
+  bool get shouldUseTryResolve => isNullable;
+
+  /// Returns the appropriate resolve method name
+  String get resolveMethodName {
+    if (isFuture) {
+      return shouldUseTryResolve ? 'tryResolveAsync' : 'resolveAsync';
+    }
+    return shouldUseTryResolve ? 'tryResolve' : 'resolve';
+  }
+
+  @override
+  String toString() {
+    return 'ParsedType(displayString: $displayString, coreType: $coreType, '
+           'isNullable: $isNullable, isFuture: $isFuture, isGeneric: $isGeneric)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) return true;
+    return other is ParsedType &&
+        other.displayString == displayString &&
+        other.coreType == coreType &&
+        other.isNullable == isNullable &&
+        other.isFuture == isFuture &&
+        other.isGeneric == isGeneric;
+  }
+
+  @override
+  int get hashCode {
+    return displayString.hashCode ^
+        coreType.hashCode ^
+        isNullable.hashCode ^
+        isFuture.hashCode ^
+        isGeneric.hashCode;
+  }
+}
--- a/cherrypick_generator/pubspec.yaml
+++ b/cherrypick_generator/pubspec.yaml
@@ -2,7 +2,7 @@ name: cherrypick_generator
 description: |
  Source code generator for the cherrypick dependency injection system. Processes annotations to generate binding and module code for Dart & Flutter projects.

-version: 1.1.0-dev.5
+version: 1.1.0-dev.6
 documentation: https://github.com/pese-git/cherrypick/wiki
 repository: https://github.com/pese-git/cherrypick/cherrypick_generator
 issue_tracker: https://github.com/pese-git/cherrypick/issues
@@ -18,6 +18,7 @@ dependencies:
  build: ^2.4.1
  source_gen: ^2.0.0
  collection: ^1.18.0
+  path: ^1.9.1

 dev_dependencies:
  lints: ^4.0.0
--- a/cherrypick_generator/test/annotation_validator_test.dart
+++ b/cherrypick_generator/test/annotation_validator_test.dart
@@ -0,0 +1,415 @@
+import 'package:test/test.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/dart/constant/value.dart';
+import 'package:analyzer/dart/element/type.dart';
+import 'package:analyzer/source/source.dart';
+import 'package:cherrypick_generator/src/annotation_validator.dart';
+import 'package:cherrypick_generator/src/exceptions.dart';
+
+void main() {
+  group('AnnotationValidator', () {
+    group('validateMethodAnnotations', () {
+      test('should pass for valid @instance method', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['instance'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          returnsNormally,
+        );
+      });
+
+      test('should pass for valid @provide method', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['provide'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          returnsNormally,
+        );
+      });
+
+      test('should throw for method with both @instance and @provide', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['instance', 'provide'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should throw for method with @params but no @provide', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['instance', 'params'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should throw for method with neither @instance nor @provide', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['singleton'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should pass for @provide method with @params', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['provide', 'params'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          returnsNormally,
+        );
+      });
+
+      test('should pass for @singleton method', () {
+        final method = _createMockMethod(
+          name: 'createService',
+          annotations: ['provide', 'singleton'],
+        );
+
+        expect(
+          () => AnnotationValidator.validateMethodAnnotations(method),
+          returnsNormally,
+        );
+      });
+    });
+
+    group('validateFieldAnnotations', () {
+      test('should pass for valid @inject field', () {
+        final field = _createMockField(
+          name: 'service',
+          annotations: ['inject'],
+          type: 'String',
+        );
+
+        expect(
+          () => AnnotationValidator.validateFieldAnnotations(field),
+          returnsNormally,
+        );
+      });
+
+      test('should throw for @inject field with void type', () {
+        final field = _createMockField(
+          name: 'service',
+          annotations: ['inject'],
+          type: 'void',
+        );
+
+        expect(
+          () => AnnotationValidator.validateFieldAnnotations(field),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should pass for non-inject field', () {
+        final field = _createMockField(
+          name: 'service',
+          annotations: [],
+          type: 'String',
+        );
+
+        expect(
+          () => AnnotationValidator.validateFieldAnnotations(field),
+          returnsNormally,
+        );
+      });
+    });
+
+    group('validateClassAnnotations', () {
+      test('should pass for valid @module class', () {
+        final classElement = _createMockClass(
+          name: 'AppModule',
+          annotations: ['module'],
+          methods: [
+            _createMockMethod(name: 'createService', annotations: ['provide']),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          returnsNormally,
+        );
+      });
+
+      test('should throw for @module class with no public methods', () {
+        final classElement = _createMockClass(
+          name: 'AppModule',
+          annotations: ['module'],
+          methods: [],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should throw for @module class with unannotated public methods', () {
+        final classElement = _createMockClass(
+          name: 'AppModule',
+          annotations: ['module'],
+          methods: [
+            _createMockMethod(name: 'createService', annotations: []),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+
+      test('should pass for valid @injectable class', () {
+        final classElement = _createMockClass(
+          name: 'AppService',
+          annotations: ['injectable'],
+          fields: [
+            _createMockField(name: 'dependency', annotations: ['inject'], type: 'String', isFinal: true),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          returnsNormally,
+        );
+      });
+
+      test('should pass for @injectable class with no inject fields', () {
+        final classElement = _createMockClass(
+          name: 'AppService',
+          annotations: ['injectable'],
+          fields: [
+            _createMockField(name: 'dependency', annotations: [], type: 'String'),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          returnsNormally,
+        );
+      });
+
+      test('should throw for @injectable class with non-final inject fields', () {
+        final classElement = _createMockClass(
+          name: 'AppService',
+          annotations: ['injectable'],
+          fields: [
+            _createMockField(
+              name: 'dependency',
+              annotations: ['inject'],
+              type: 'String',
+              isFinal: false,
+            ),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          throwsA(isA<AnnotationValidationException>()),
+        );
+      });
+      
+      test('should pass for @injectable class with final inject fields', () {
+        final classElement = _createMockClass(
+          name: 'AppService',
+          annotations: ['injectable'],
+          fields: [
+            _createMockField(
+              name: 'dependency',
+              annotations: ['inject'],
+              type: 'String',
+              isFinal: true,
+            ),
+          ],
+        );
+
+        expect(
+          () => AnnotationValidator.validateClassAnnotations(classElement),
+          returnsNormally,
+        );
+      });
+    });
+  });
+}
+
+// Mock implementations for testing
+MethodElement _createMockMethod({
+  required String name,
+  required List<String> annotations,
+}) {
+  return _MockMethodElement(name, annotations);
+}
+
+FieldElement _createMockField({
+  required String name,
+  required List<String> annotations,
+  required String type,
+  bool isFinal = false,
+}) {
+  return _MockFieldElement(name, annotations, type, isFinal);
+}
+
+ClassElement _createMockClass({
+  required String name,
+  required List<String> annotations,
+  List<MethodElement> methods = const [],
+  List<FieldElement> fields = const [],
+}) {
+  return _MockClassElement(name, annotations, methods, fields);
+}
+
+class _MockMethodElement implements MethodElement {
+  final String _name;
+  final List<String> _annotations;
+
+  _MockMethodElement(this._name, this._annotations);
+
+  @override
+  Source get source => _MockSource();
+
+  @override
+  String get displayName => _name;
+
+  @override
+  String get name => _name;
+
+  @override
+  List<ElementAnnotation> get metadata => _annotations.map((a) => _MockElementAnnotation(a)).toList();
+
+  @override
+  bool get isPublic => true;
+
+  @override
+  List<ParameterElement> get parameters => [];
+
+  @override
+  DartType get returnType => _MockDartType('String');
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+class _MockFieldElement implements FieldElement {
+  final String _name;
+  final List<String> _annotations;
+  final String _type;
+  final bool _isFinal;
+
+  _MockFieldElement(this._name, this._annotations, this._type, this._isFinal);
+
+  @override
+  Source get source => _MockSource();
+
+  @override
+  String get displayName => _name;
+
+  @override
+  String get name => _name;
+
+  @override
+  List<ElementAnnotation> get metadata => _annotations.map((a) => _MockElementAnnotation(a)).toList();
+
+  @override
+  bool get isFinal => _isFinal;
+
+  @override
+  DartType get type => _MockDartType(_type);
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+class _MockClassElement implements ClassElement {
+  final String _name;
+  final List<String> _annotations;
+  final List<MethodElement> _methods;
+  final List<FieldElement> _fields;
+
+  _MockClassElement(this._name, this._annotations, this._methods, this._fields);
+
+  @override
+  Source get source => _MockSource();
+
+  @override
+  String get displayName => _name;
+
+  @override
+  String get name => _name;
+
+  @override
+  List<ElementAnnotation> get metadata => _annotations.map((a) => _MockElementAnnotation(a)).toList();
+
+  @override
+  List<MethodElement> get methods => _methods;
+
+  @override
+  List<FieldElement> get fields => _fields;
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+class _MockElementAnnotation implements ElementAnnotation {
+  final String _type;
+
+  _MockElementAnnotation(this._type);
+
+  @override
+  DartObject? computeConstantValue() {
+    return _MockDartObject(_type);
+  }
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+class _MockDartObject implements DartObject {
+  final String _type;
+
+  _MockDartObject(this._type);
+
+  @override
+  DartType? get type => _MockDartType(_type);
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+class _MockDartType implements DartType {
+  final String _name;
+
+  _MockDartType(this._name);
+
+  @override
+  String getDisplayString({bool withNullability = true}) => _name;
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+class _MockSource implements Source {
+  @override
+  String get fullName => 'mock_source.dart';
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
--- a/cherrypick_generator/test/bind_spec_test.dart
+++ b/cherrypick_generator/test/bind_spec_test.dart
@@ -245,7 +245,10 @@ void main() {
        expect(
            result,
            equals(
-                "    bind<ApiClient>().toProvideAsync(() => createApiClient()).withName('mainApi').singleton();"));
+                "    bind<ApiClient>()\n"
+                "        .toProvideAsync(() => createApiClient())\n"
+                "        .withName('mainApi')\n"
+                "        .singleton();"));
      });

      test('should handle different indentation', () {
--- a/cherrypick_generator/test/type_parser_test.dart
+++ b/cherrypick_generator/test/type_parser_test.dart
@@ -0,0 +1,231 @@
+import 'package:test/test.dart';
+
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/source/source.dart';
+import 'package:cherrypick_generator/src/type_parser.dart';
+import 'package:cherrypick_generator/src/exceptions.dart';
+
+void main() {
+  group('TypeParser', () {
+    group('parseType', () {
+      test('should parse simple types correctly', () {
+        // This would require setting up analyzer infrastructure
+        // For now, we'll test the ParsedType class directly
+      });
+
+      test('should parse Future types correctly', () {
+        // This would require setting up analyzer infrastructure
+        // For now, we'll test the ParsedType class directly
+      });
+
+      test('should parse nullable types correctly', () {
+        // This would require setting up analyzer infrastructure
+        // For now, we'll test the ParsedType class directly
+      });
+
+      test('should throw TypeParsingException for invalid types', () {
+        // This would require setting up analyzer infrastructure
+        // For now, we'll test the ParsedType class directly
+      });
+    });
+
+    group('validateInjectableType', () {
+      test('should throw for void type', () {
+        final parsedType = ParsedType(
+          displayString: 'void',
+          coreType: 'void',
+          isNullable: false,
+          isFuture: false,
+          isGeneric: false,
+          typeArguments: [],
+        );
+
+        expect(
+          () => TypeParser.validateInjectableType(parsedType, _createMockElement()),
+          throwsA(isA<TypeParsingException>()),
+        );
+      });
+
+      test('should throw for dynamic type', () {
+        final parsedType = ParsedType(
+          displayString: 'dynamic',
+          coreType: 'dynamic',
+          isNullable: false,
+          isFuture: false,
+          isGeneric: false,
+          typeArguments: [],
+        );
+
+        expect(
+          () => TypeParser.validateInjectableType(parsedType, _createMockElement()),
+          throwsA(isA<TypeParsingException>()),
+        );
+      });
+
+      test('should pass for valid types', () {
+        final parsedType = ParsedType(
+          displayString: 'String',
+          coreType: 'String',
+          isNullable: false,
+          isFuture: false,
+          isGeneric: false,
+          typeArguments: [],
+        );
+
+        expect(
+          () => TypeParser.validateInjectableType(parsedType, _createMockElement()),
+          returnsNormally,
+        );
+      });
+    });
+  });
+
+  group('ParsedType', () {
+    test('should return correct codeGenType for simple types', () {
+      final parsedType = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType.codeGenType, equals('String'));
+    });
+
+    test('should return correct codeGenType for Future types', () {
+      final innerType = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      final parsedType = ParsedType(
+        displayString: 'Future<String>',
+        coreType: 'Future<String>',
+        isNullable: false,
+        isFuture: true,
+        isGeneric: false,
+        typeArguments: [],
+        innerType: innerType,
+      );
+
+      expect(parsedType.codeGenType, equals('String'));
+    });
+
+    test('should return correct resolveMethodName for sync types', () {
+      final parsedType = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType.resolveMethodName, equals('resolve'));
+    });
+
+    test('should return correct resolveMethodName for nullable sync types', () {
+      final parsedType = ParsedType(
+        displayString: 'String?',
+        coreType: 'String',
+        isNullable: true,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType.resolveMethodName, equals('tryResolve'));
+    });
+
+    test('should return correct resolveMethodName for async types', () {
+      final parsedType = ParsedType(
+        displayString: 'Future<String>',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: true,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType.resolveMethodName, equals('resolveAsync'));
+    });
+
+    test('should return correct resolveMethodName for nullable async types', () {
+      final parsedType = ParsedType(
+        displayString: 'Future<String?>',
+        coreType: 'String',
+        isNullable: true,
+        isFuture: true,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType.resolveMethodName, equals('tryResolveAsync'));
+    });
+
+    test('should implement equality correctly', () {
+      final parsedType1 = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      final parsedType2 = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      expect(parsedType1, equals(parsedType2));
+      expect(parsedType1.hashCode, equals(parsedType2.hashCode));
+    });
+
+    test('should implement toString correctly', () {
+      final parsedType = ParsedType(
+        displayString: 'String',
+        coreType: 'String',
+        isNullable: false,
+        isFuture: false,
+        isGeneric: false,
+        typeArguments: [],
+      );
+
+      final result = parsedType.toString();
+      expect(result, contains('ParsedType'));
+      expect(result, contains('String'));
+      expect(result, contains('isNullable: false'));
+      expect(result, contains('isFuture: false'));
+    });
+  });
+}
+
+// Mock element for testing
+Element _createMockElement() {
+  return _MockElement();
+}
+
+class _MockElement implements Element {
+  @override
+  String get displayName => 'MockElement';
+
+  @override
+  String get name => 'MockElement';
+  
+  @override
+  Source? get source => null;
+
+  @override
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
--- a/doc/full_tutorial_en.md
+++ b/doc/full_tutorial_en.md
@@ -379,6 +379,45 @@ You can use CherryPick in Dart CLI, server apps, and microservices. All major fe

 ---

+### Advanced: Customizing Generated Code Location
+
+CherryPick's code generator now supports flexible output configuration via `build.yaml`.
+
+You can control both the output directory (using `output_dir`) and filename templates (using `build_extensions`):
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          build_extensions:
+            '^lib/app.dart': ['lib/generated/app.inject.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|module_generator:
+        options:
+          build_extensions:
+            '^lib/di/{{}}.dart': ['lib/generated/di/{{}}.module.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+```
+
+- **output_dir**: Folder where all generated files will be placed.
+- **build_extensions**: Allows full customization of generated file names and subfolders.
+
+If you use these, be sure to update your imports accordingly, e.g.:
+```dart
+import 'package:your_project/generated/app.inject.cherrypick.g.dart';
+```
+If not specified, generated files will appear next to your source files, as before.
+
+---
+
+---
+
 ## Conclusion

 **CherryPick** is a modern DI solution for Dart and Flutter, combining a concise API and advanced annotation/codegen features. Scopes, parameterized providers, named bindings, and field-injection make it great for both small and large-scale projects.
--- a/doc/full_tutorial_ru.md
+++ b/doc/full_tutorial_ru.md
@@ -382,6 +382,45 @@ class MyApp extends StatelessWidget {

 ---

+### Продвинутая настройка путей генерации кода
+
+В последних версиях генератора CherryPick добавлена поддержка гибкой настройки директорий и шаблонов имён файлов через `build.yaml`.
+
+Вы можете управлять и папкой назначения (через `output_dir`), и шаблоном имён (через `build_extensions`):
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          build_extensions:
+            '^lib/app.dart': ['lib/generated/app.inject.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|module_generator:
+        options:
+          build_extensions:
+            '^lib/di/{{}}.dart': ['lib/generated/di/{{}}.module.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+```
+
+- **output_dir**: Папка, куда будут складываться все сгенерированные файлы.
+- **build_extensions**: Полный контроль над именами итоговых файлов и подпапками.
+
+Если вы это используете, обязательно обновляйте импорты, например:
+```dart
+import 'package:your_project/generated/app.inject.cherrypick.g.dart';
+```
+Если не задать параметры, файлы будут сгенерированы рядом с исходными — как и раньше.
+
+---
+
+---
+
 ## Заключение

 **CherryPick** — это современное DI-решение для Dart и Flutter, сочетающее лаконичный API и расширенные возможности аннотирования и генерации кода. Гибкость Scopes, параметрические провайдеры, именованные биндинги и field-injection делают его особенно мощным как для небольших, так и для масштабных проектов.
--- a/doc/quick_start_en.md
+++ b/doc/quick_start_en.md
@@ -19,7 +19,29 @@ There are two main methods for initializing a custom instance `toInstance ()` an

 Example:

-```dart
+```
+
+---
+
+## Advanced: Customizing Code Generation Output
+
+You can configure where generated files will be placed by updating your `build.yaml` (supports `output_dir` and `build_extensions`):
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          output_dir: lib/generated
+      cherrypick_generator|module_generator:
+        options:
+          output_dir: lib/generated
+```
+
+For full control and more examples, see the "Full Tutorial" or documentation on `build_extensions`.
+
+---
 // initializing a text string instance through a method toInstance()
 Binding<String>().toInstance("hello world");

--- a/doc/quick_start_ru.md
+++ b/doc/quick_start_ru.md
@@ -19,7 +19,29 @@ Binding - по сути это конфигуратор  для  пользов

 Пример:

-```dart
+```
+
+---
+
+## Продвинутая настройка генерации кода
+
+В файле `build.yaml` можно задать папку для сгенерированных файлов через параметр `output_dir` (а также использовать шаблон `build_extensions`):
+
+```yaml
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          output_dir: lib/generated
+      cherrypick_generator|module_generator:
+        options:
+          output_dir: lib/generated
+```
+
+Для полной настройки и шаблонов см. раздел “Полный гайд” или документацию по `build_extensions`.
+
+---
 // инициализация экземпляра текстовой строки через метод toInstance()
 Binding<String>().toInstance("hello world");

--- a/examples/postly/build.yaml
+++ b/examples/postly/build.yaml
@@ -0,0 +1,27 @@
+targets:
+  $default:
+    builders:
+      cherrypick_generator|inject_generator:
+        options:
+          build_extensions:
+            '^lib/app.dart': ['lib/generated/app.inject.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+      cherrypick_generator|module_generator:
+        options:
+          build_extensions:
+            '^lib/di/{{}}.dart': ['lib/generated/di/{{}}.module.cherrypick.g.dart']
+          output_dir: lib/generated
+        generate_for:
+          - lib/**.dart
+
+#targets:
+#  $default:
+#    builders:
+#      cherrypick_generator|module_generator:
+#        generate_for:
+#          - lib/**.dart
+#      cherrypick_generator|inject_generator:
+#        generate_for:
+#          - lib/**.dart
--- a/examples/postly/lib/app.dart
+++ b/examples/postly/lib/app.dart
@@ -7,7 +7,7 @@ import 'domain/repository/post_repository.dart';
 import 'presentation/bloc/post_bloc.dart';
 import 'router/app_router.dart';

-part 'app.inject.cherrypick.g.dart';
+part 'generated/app.inject.cherrypick.g.dart';

@injectable()
 class MyApp extends StatelessWidget with _$MyApp {
--- a/examples/postly/lib/di/app_module.dart
+++ b/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.module.cherrypick.g.dart';
+part '../generated/di/app_module.module.cherrypick.g.dart';

@module()
 abstract class AppModule extends Module {
Author	SHA1	Message	Date
Sergey Penkovsky	76c77b1f6d	feat(cli): pretty build.yaml generation, full English docs, robust init command\n\n- build.yaml is always formatted\n- CLI help and output in English\n- README with usage and examples\n- Custom output dir and build.yaml supported\n- Safe update of existing configs\n- json2yaml for pretty YAML output	2025-07-16 18:05:48 +03:00
Sergey Penkovsky	edc2a14ad7	refactor: clean up unused code and fix all analyzer warnings - Removed all unused imports and variables across generator sources and tests - Applied Dart 3 super parameters to all custom exceptions - Project now passes 'dart analyze' with zero warnings or infos - All tests (164/164) are green This commit improves code clarity and ensures full compliance with modern Dart best practices.	2025-07-15 16:28:05 +03:00
Sergey Penkovsky	71d3ef77a9	feat: improve code generation formatting and fix all tests - Enhanced BindSpec multiline formatting logic for better code readability - Added _generateMultilinePostfix method for proper postfix formatting - Fixed indentation handling for different binding types and scenarios - Improved CustomOutputBuilder to correctly place 'part of' directive - Enhanced InjectGenerator injection line formatting with proper line breaks - Fixed TypeParser to include generic parameters in generated types - Updated AnnotationValidator to allow injectable classes without @inject fields - Fixed mock objects in tests to be compatible with analyzer 7.x API - Added missing properties (source, returnType, type) to test mocks - Updated test expectations to match new formatting behavior All 164 tests now pass successfully (100% success rate) BREAKING CHANGE: Injectable classes without @inject fields now generate empty mixins instead of throwing exceptions	2025-07-15 16:03:10 +03:00
Sergey Penkovsky	0eec549b57	chore(release): publish packages - cherrypick@2.2.0-dev.2 - cherrypick_generator@1.1.0-dev.6 - cherrypick_flutter@1.1.2-dev.2	2025-07-15 12:10:54 +03:00
Sergey Penkovsky	a3648209b9	feat(generator): support output_dir and build_extensions config for generated files Now the code generator supports specifying a custom output directory and extension/name template for generated DI files via build.yaml ( and ). This allows placing all generated code in custom folders and using flexible naming schemes. docs: update all user docs and tutorials to explain new output_dir/build_extensions config - Added detailed usage and YAML examples to cherrypick_generator/README.md - Synced full_tutorial_en.md and full_tutorial_ru.md (advanced codegen section) with explanation of new configuration and impact on imports - Updated quick_start_en.md and quick_start_ru.md to mention advanced customization and point to tutorials - Added troubleshooting and tips for custom output/imports in docs	2025-07-15 12:07:23 +03:00