chore(release): publish packages

- cherrypick@3.0.0-dev.8
 - cherrypick_flutter@1.1.3-dev.8

.gitignore

@@ -18,5 +18,7 @@ pubspec_overrides.yaml
 melos_cherrypick.iml
 melos_cherrypick_workspace.iml
 melos_cherrypick_flutter.iml
+melos_benchmark_di.iml
+melos_talker_cherrypick_logger.iml
 
 coverage

CHANGELOG.md

@@ -3,6 +3,41 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## 2025-08-12
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`cherrypick` - `v3.0.0-dev.8`](#cherrypick---v300-dev8)
+ - [`cherrypick_flutter` - `v1.1.3-dev.8`](#cherrypick_flutter---v113-dev8)
+
+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` - `v1.1.3-dev.8`
+
+---
+
+#### `cherrypick` - `v3.0.0-dev.8`
+
+ - **REFACTOR**(tests): replace MockLogger with MockObserver in scope tests to align with updated observer API.
+ - **FIX**(doc): remove hide symbol.
+ - **FEAT**(core): add full DI lifecycle observability via onInstanceDisposed.
+ - **DOCS**(logging): update Logging section in README with modern Observer usage and Talker integration examples.
+ - **DOCS**(observer): improve documentation, translate all comments to English, add usage examples.
+ - **DOCS**(README): add section with overview table for additional modules.
+ - **DOCS**(README): refactor structure and improve clarity of advanced features.
+ - **DOCS**(README): add 'Hierarchical Subscopes' section and update structure for advanced features clarity.
+
+
 ## 2025-08-11
 
 ### Changes

benchmark_di/pubspec.lock

@@ -47,7 +47,7 @@ packages:
       path: "../cherrypick"
       relative: true
     source: path
-    version: "3.0.0-dev.5"
+    version: "3.0.0-dev.7"
   collection:
     dependency: transitive
     description:

cherrypick/CHANGELOG.md

@@ -1,3 +1,14 @@
+## 3.0.0-dev.8
+
+ - **REFACTOR**(tests): replace MockLogger with MockObserver in scope tests to align with updated observer API.
+ - **FIX**(doc): remove hide symbol.
+ - **FEAT**(core): add full DI lifecycle observability via onInstanceDisposed.
+ - **DOCS**(logging): update Logging section in README with modern Observer usage and Talker integration examples.
+ - **DOCS**(observer): improve documentation, translate all comments to English, add usage examples.
+ - **DOCS**(README): add section with overview table for additional modules.
+ - **DOCS**(README): refactor structure and improve clarity of advanced features.
+ - **DOCS**(README): add 'Hierarchical Subscopes' section and update structure for advanced features clarity.
+
 ## 3.0.0-dev.7
 
 > Note: This release has breaking changes.

cherrypick/README.md

@@ -13,7 +13,7 @@ It provides an easy-to-use system for registering, scoping, and resolving depend
   - [Binding](#binding)
   - [Module](#module)
   - [Scope](#scope)
-  - [Automatic Resource Cleanup with Disposable](#automatic-resource-cleanup-with-disposable)
+  - [Disposable](#disposable)
 - [Dependency Resolution API](#dependency-resolution-api)
 - [Using Annotations & Code Generation](#using-annotations--code-generation)
 - [Advanced Features](#advanced-features)
@@ -24,6 +24,7 @@ It provides an easy-to-use system for registering, scoping, and resolving depend
 - [Example Application](#example-application)
 - [FAQ](#faq)
 - [Documentation Links](#documentation-links)
+- [Additional Modules](#additional-modules)
 - [Contributing](#contributing)
 - [License](#license)
 
@@ -50,13 +51,14 @@ Add to your `pubspec.yaml`:
 ```yaml
 dependencies:
   cherrypick: ^<latest_version>
-```
+````
 
 Then run:
 
 ```shell
 dart pub get
 ```
+
 ---
 
 ## Getting Started
@@ -66,7 +68,6 @@ Here is a minimal example that registers and resolves a dependency:
 ```dart
 import 'package:cherrypick/cherrypick.dart';
 
-
 class AppModule extends Module {
   @override
   void builder(Scope currentScope) {
@@ -92,11 +93,11 @@ await CherryPick.closeRootScope();
 
 A **Binding** acts as a configuration for how to create or provide a particular dependency. Bindings support:
 
-- Direct instance assignment (`toInstance()`, `toInstanceAsync()`)
+* Direct instance assignment (`toInstance()`, `toInstanceAsync()`)
-- Lazy providers (sync/async functions)
+* Lazy providers (sync/async functions)
-- Provider functions supporting dynamic parameters
+* Provider functions supporting dynamic parameters
-- Named instances for resolving by string key
+* Named instances for resolving by string key
-- Optional singleton lifecycle
+* Optional singleton lifecycle
 
 #### Example
 
@@ -172,7 +173,7 @@ await CherryPick.closeRootScope();
 
 ---
 
-### Automatic Resource Cleanup with Disposable
+### Disposable
 
 CherryPick can automatically clean up any dependency that implements the `Disposable` interface. This makes resource management (for controllers, streams, sockets, files, etc.) easy and reliable—especially when scopes or the app are shut down.
 
@@ -223,67 +224,17 @@ await CherryPick.closeRootScope(); // awaits async disposal
 
 ---
 
-### Automatic resource management (`Disposable`, `dispose`)
+## Dependency Resolution API
 
-CherryPick automatically manages the lifecycle of any object registered via DI that implements the `Disposable` interface.
+- `resolve<T>()` — Locates a dependency instance or throws if missing.
+- `resolveAsync<T>()` — Async variant for dependencies requiring async binding.
+- `tryResolve<T>()` — Returns `null` if not found (sync).
+- `tryResolveAsync<T>()` — Returns `null` async if not found.
 
-**Best practice:**  
+Supports:
-Always finish your work with `await CherryPick.closeRootScope()` (for the root scope) or `await scope.closeSubScope('key')` (for subscopes).  
+- Synchronous and asynchronous dependencies
-These methods will automatically await `dispose()` on all resolved objects (e.g., singletons) that implement `Disposable`, ensuring proper and complete resource cleanup—sync or async.
+- Named dependencies
-
+- Provider functions with and without runtime parameters
-Manual `await scope.dispose()` may be useful if you manually manage custom scopes.
-
-#### Example
-
-```dart
-class MyService implements Disposable {
-  @override
-  FutureOr<void> dispose() async {
-    // release resources, close streams, perform async shutdown, etc.
-    print('MyService disposed!');
-  }
-}
-
-final scope = openRootScope();
-scope.installModules([
-  ModuleImpl(),
-]);
-
-final service = scope.resolve<MyService>();
-
-// ... use service
-
-// Recommended completion:
-await CherryPick.closeRootScope(); // will print: MyService disposed!
-
-// Or, to close and clean up a subscope and its resources:
-await scope.closeSubScope('feature');
-
-class ModuleImpl extends Module {
-  @override
-  void builder(Scope scope) {
-    bind<MyService>().toProvide(() => MyService()).singleton();
-  }
-}
-```
-
-#### Working with Subscopes
-
-```dart
-// Open a named child scope (e.g., for a feature/module)
-final subScope = rootScope.openSubScope('featureScope')
-  ..installModules([FeatureModule()]);
-
-// Resolve from subScope, with fallback to parents if missing
-final dataBloc = await subScope.resolveAsync<DataBloc>();
-```
-
-### Fast Dependency Lookup (Performance Improvement)
-
-> **Performance Note:**  
-> **Starting from version 3.0.0**, CherryPick uses a Map-based resolver index for dependency lookup. This means calls to `resolve<T>()` and related methods are now O(1) operations, regardless of the number of modules or bindings in your scope. Previously, the library had to iterate over all modules and bindings to locate the requested dependency, which could impact performance as your project grew.
->
-> This optimization is internal and does not change any library APIs or usage patterns, but it significantly improves resolution speed in larger applications.
 
 ---
 
@@ -337,7 +288,7 @@ class ProfilePage with _\$ProfilePage {
 }
 ```
 
-- After running build_runner, the mixin `_5ProfilePage` will be generated for field injection.
+- After running build_runner, the mixin `_ProfilePage` will be generated for field injection.
 - Call `myProfilePage.injectFields();` or use the mixin's auto-inject feature, and all dependencies will be set up for you.
 
 ---
@@ -423,17 +374,196 @@ abstract class AppModule {
 
 ---
 
-### Dependency Lookup API
+## Advanced Features
 
-- `resolve<T>()` — Locates a dependency instance or throws if missing.
+### Hierarchical Subscopes
-- `resolveAsync<T>()` — Async variant for dependencies requiring async binding.
-- `tryResolve<T>()` — Returns `null` if not found (sync).
-- `tryResolveAsync<T>()` — Returns `null` async if not found.
 
-Supports:
+CherryPick supports a hierarchical structure of scopes, allowing you to create complex and modular dependency graphs for advanced application architectures. Each subscope inherits from its parent, enabling context-specific overrides while still allowing access to global or shared services.
-- Synchronous and asynchronous dependencies
+
-- Named dependencies
+#### Key Points
-- Provider functions with and without runtime parameters
+
+- **Subscopes** are child scopes that can be opened from any existing scope (including the root).
+- Dependencies registered in a subscope override those from parent scopes when resolved.
+- If a dependency is not found in the current subscope, the resolution process automatically searches parent scopes up the hierarchy.
+- Subscopes can have their own modules, lifetime, and disposable objects.
+- You can nest subscopes to any depth, modeling features, flows, or components independently.
+
+#### Example
+
+```dart
+final rootScope = CherryPick.openRootScope();
+rootScope.installModules([AppModule()]);
+
+// Open a hierarchical subscope for a feature or page
+final userFeatureScope = rootScope.openSubScope('userFeature');
+userFeatureScope.installModules([UserFeatureModule()]);
+
+// Dependencies defined in UserFeatureModule will take precedence
+final userService = userFeatureScope.resolve<UserService>();
+
+// If not found in the subscope, lookup continues in the parent (rootScope)
+final sharedService = userFeatureScope.resolve<SharedService>();
+
+// You can nest subscopes
+final dialogScope = userFeatureScope.openSubScope('dialog');
+dialogScope.installModules([DialogModule()]);
+final dialogManager = dialogScope.resolve<DialogManager>();
+```
+
+#### Use Cases
+
+- Isolate feature modules, flows, or screens with their own dependencies.
+- Provide and override services for specific navigation stacks or platform-specific branches.
+- Manage the lifetime and disposal of groups of dependencies independently (e.g., per-user, per-session, per-component).
+
+**Tip:** Always close subscopes when they are no longer needed to release resources and trigger cleanup of Disposable dependencies.
+
+---
+
+### Logging
+
+CherryPick lets you log all dependency injection (DI) events and errors using a flexible observer mechanism.
+
+#### Custom Observers
+
+You can pass any implementation of `CherryPickObserver` to your root scope or any sub-scope.
+This allows centralized and extensible logging, which you can direct to print, files, visualization frameworks, external loggers, or systems like [Talker](https://pub.dev/packages/talker).
+
+##### Example: Printing All Events
+
+```dart
+import 'package:cherrypick/cherrypick.dart';
+
+void main() {
+  // Use the built-in PrintCherryPickObserver for console logs
+  final observer = PrintCherryPickObserver();
+  final scope = CherryPick.openRootScope(observer: observer);
+  // All DI actions and errors will now be printed!
+}
+```
+
+##### Example: Advanced Logging with Talker
+
+For richer logging, analytics, or UI overlays, use an advanced observer such as [talker_cherrypick_logger](../talker_cherrypick_logger):
+
+```dart
+import 'package:cherrypick/cherrypick.dart';
+import 'package:talker/talker.dart';
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+
+void main() {
+  final talker = Talker();
+  final observer = TalkerCherryPickObserver(talker);
+  CherryPick.openRootScope(observer: observer);
+  // All container events go to the Talker log system!
+}
+```
+
+#### Default Behavior
+
+- By default, logging is silent (`SilentCherryPickObserver`) for production, with no output unless you supply an observer.
+- You can configure observers **per scope** for isolated, test-specific, or feature-specific logging.
+
+#### Observer Capabilities
+
+Events you can observe and log:
+- Dependency registration
+- Instance requests, creations, disposals
+- Module installs/removals
+- Scope opening/closing
+- Cache hits/misses
+- Cycle detection
+- Diagnostics, warnings, errors
+
+Just implement or extend `CherryPickObserver` and direct messages anywhere you want!
+
+#### When to Use
+
+- Enable verbose logging and debugging in development or test builds.
+- Route logs to your main log system or analytics.
+- Hook into DI lifecycle for profiling or monitoring.
+
+
+---
+
+### Circular Dependency Detection
+
+CherryPick can detect circular dependencies in your DI configuration, helping you avoid infinite loops and hard-to-debug errors.
+
+**How to use:**
+
+#### 1. Enable Cycle Detection for Development
+
+**Local detection (within one scope):**
+```dart
+final scope = CherryPick.openSafeRootScope(); // Local detection enabled by default
+// or, for an existing scope:
+scope.enableCycleDetection();
+```
+
+**Global detection (across all scopes):**
+```dart
+CherryPick.enableGlobalCrossScopeCycleDetection();
+final rootScope = CherryPick.openGlobalSafeRootScope();
+```
+
+#### 2. Error Example
+
+If you declare mutually dependent services:
+```dart
+class A { A(B b); }
+class B { B(A a); }
+
+scope.installModules([
+  Module((bind) {
+    bind<A>().to((s) => A(s.resolve<B>()));
+    bind<B>().to((s) => B(s.resolve<A>()));
+  }),
+]);
+
+scope.resolve<A>(); // Throws CircularDependencyException
+```
+
+#### 3. Typical Usage Pattern
+
+- **Always enable detection** in debug and test environments for maximum safety.
+- **Disable detection** in production for performance (after code is tested).
+
+```dart
+import 'package:flutter/foundation.dart';
+
+void main() {
+  if (kDebugMode) {
+    CherryPick.enableGlobalCycleDetection();
+    CherryPick.enableGlobalCrossScopeCycleDetection();
+  }
+  runApp(MyApp());
+}
+```
+
+#### 4. Handling and Debugging Errors
+
+On detection, `CircularDependencyException` is thrown with a readable dependency chain:
+```dart
+try {
+  scope.resolve<MyService>();
+} on CircularDependencyException catch (e) {
+  print('Dependency chain: ${e.dependencyChain}');
+}
+```
+
+**More details:** See [cycle_detection.en.md](doc/cycle_detection.en.md)
+
+---
+
+### Performance Improvements
+
+> **Performance Note:**  
+> **Starting from version 3.0.0**, CherryPick uses a Map-based resolver index for dependency lookup. This means calls to `resolve<T>()` and related methods are now O(1) operations, regardless of the number of modules or bindings in your scope. Previously, the library had to iterate over all modules and bindings to locate the requested dependency, which could impact performance as your project grew.
+>
+> This optimization is internal and does not change any library APIs or usage patterns, but it significantly improves resolution speed in larger applications.
+
+---
 
 ## Example Application
 
@@ -556,113 +686,7 @@ class ApiClientImpl implements ApiClient {
 }
 ```
 
-## Logging
+---
-
-CherryPick supports centralized logging of all dependency injection (DI) events and errors. You can globally enable logs for your application or test environment with:
-
-```dart
-import 'package:cherrypick/cherrypick.dart';
-
-void main() {
-  // Set a global logger before any scopes are created
-  CherryPick.setGlobalLogger(PrintLogger()); // or your custom logger
-
-  final scope = CherryPick.openRootScope();
-  // All DI actions and errors will now be logged!
-}
-```
-- All dependency resolution, scope creation, module installation, and circular dependency errors will be sent to your logger (via info/error method).
-- By default, logs are off (SilentLogger is used in production).
-
-If you want fine-grained, test-local, or isolated logging, you can provide a logger directly to each scope:
-
-```dart
-final logger = MockLogger();
-final scope = Scope(null, logger: logger); // works in tests for isolation
-scope.installModules([...]);
-```
-
-## Features
-
-- [x] Main Scope and Named Subscopes
-- [x] Named Instance Binding and Resolution
-- [x] Asynchronous and Synchronous Providers
-- [x] Providers Supporting Runtime Parameters
-- [x] Singleton Lifecycle Management
-- [x] Modular and Hierarchical Composition
-- [x] Null-safe Resolution (tryResolve/tryResolveAsync)
-- [x] Circular Dependency Detection (Local and Global)
-- [x] Comprehensive logging of dependency injection state and actions
-- [x] Automatic resource cleanup for all registered Disposable dependencies
-
-## Quick Guide: Circular Dependency Detection
-
-CherryPick can detect circular dependencies in your DI configuration, helping you avoid infinite loops and hard-to-debug errors.
-
-**How to use:**
-
-### 1. Enable Cycle Detection for Development
-
-**Local detection (within one scope):**
-```dart
-final scope = CherryPick.openSafeRootScope(); // Local detection enabled by default
-// or, for an existing scope:
-scope.enableCycleDetection();
-```
-
-**Global detection (across all scopes):**
-```dart
-CherryPick.enableGlobalCrossScopeCycleDetection();
-final rootScope = CherryPick.openGlobalSafeRootScope();
-```
-
-### 2. Error Example
-
-If you declare mutually dependent services:
-```dart
-class A { A(B b); }
-class B { B(A a); }
-
-scope.installModules([
-  Module((bind) {
-    bind<A>().to((s) => A(s.resolve<B>()));
-    bind<B>().to((s) => B(s.resolve<A>()));
-  }),
-]);
-
-scope.resolve<A>(); // Throws CircularDependencyException
-```
-
-### 3. Typical Usage Pattern
-
-- **Always enable detection** in debug and test environments for maximum safety.
-- **Disable detection** in production for performance (after code is tested).
-
-```dart
-import 'package:flutter/foundation.dart';
-
-void main() {
-  if (kDebugMode) {
-    CherryPick.enableGlobalCycleDetection();
-    CherryPick.enableGlobalCrossScopeCycleDetection();
-  }
-  runApp(MyApp());
-}
-```
-
-### 4. Handling and Debugging Errors
-
-On detection, `CircularDependencyException` is thrown with a readable dependency chain:
-```dart
-try {
-  scope.resolve<MyService>();
-} on CircularDependencyException catch (e) {
-  print('Dependency chain: ${e.dependencyChain}');
-}
-```
-
-**More details:** See [cycle_detection.en.md](doc/cycle_detection.en.md)
-
 
 ## FAQ
 
@@ -671,15 +695,32 @@ try {
 **A:**  
 Yes! Even if none of your services currently implement `Disposable`, always use `await` when closing scopes. If you later add resource cleanup (by implementing `dispose()`), CherryPick will handle it automatically without you needing to change your scope cleanup code. This ensures resource management is future-proof, robust, and covers all application scenarios.
 
-## Documentation
+---
 
-- [Circular Dependency Detection (English)](doc/cycle_detection.en.md)
+## Documentation Links
-- [Обнаружение циклических зависимостей (Русский)](doc/cycle_detection.ru.md)
+
+* Circular Dependency Detection [(En)](doc/cycle_detection.en.md)[(Ru)](doc/cycle_detection.ru.md)
+
+---
+
+## Additional Modules
+
+CherryPick provides a set of official add-on modules for advanced use cases and specific platforms:
+
+| Module name | Description | Documentation |
+|-------------|-------------|---------------|
+| [**cherrypick_annotations**](https://pub.dev/packages/cherrypick_annotations) | Dart annotations for concise DI definitions and code generation. | [README](../cherrypick_annotations/README.md) |
+| [**cherrypick_generator**](https://pub.dev/packages/cherrypick_generator) | Code generator to produce DI bindings based on annotations. | [README](../cherrypick_generator/README.md) |
+| [**cherrypick_flutter**](https://pub.dev/packages/cherrypick_flutter) | Flutter integration: DI provider widgets and helpers for Flutter. | [README](../cherrypick_flutter/README.md) |
+
+---
 
 ## Contributing
 
 Contributions are welcome! Please open issues or submit pull requests on [GitHub](https://github.com/pese-git/cherrypick).
 
+---
+
 ## License
 
 Licensed under the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).
@@ -688,6 +729,8 @@ Licensed under the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-
 
 **Important:** 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 specific language governing permissions and limitations under the License.
 
+---
+
 ## Links
 
 - [GitHub Repository](https://github.com/pese-git/cherrypick)

cherrypick/example/cherrypick_logger_demo.dart

@@ -15,7 +15,7 @@ class AppModule extends Module {
 
 void main() {
   // Set a global logger for the DI system
-  CherryPick.setGlobalLogger(PrintLogger());
+  CherryPick.setGlobalObserver(PrintCherryPickObserver());
 
   // Open the root scope
   final rootScope = CherryPick.openRootScope();
@@ -32,6 +32,6 @@ void main() {
   subScope.closeSubScope('feature.profile');
 
   // Demonstrate disabling and re-enabling logging
-  CherryPick.setGlobalLogger(const SilentLogger());
+  CherryPick.setGlobalObserver(SilentCherryPickObserver());
   rootScope.resolve<UserRepository>(); // now without logs
 }

cherrypick/lib/cherrypick.dart

@@ -20,5 +20,5 @@ export 'package:cherrypick/src/global_cycle_detector.dart';
 export 'package:cherrypick/src/helper.dart';
 export 'package:cherrypick/src/module.dart';
 export 'package:cherrypick/src/scope.dart';
-export 'package:cherrypick/src/logger.dart';
 export 'package:cherrypick/src/disposable.dart';
+export 'package:cherrypick/src/observer.dart';

cherrypick/lib/src/binding.dart

@@ -16,8 +16,7 @@ import 'package:cherrypick/src/binding_resolver.dart';
 /// RU: Класс Binding<T> настраивает параметры экземпляра.
 /// ENG: The Binding<T> class configures the settings for the instance.
 ///
-import 'package:cherrypick/src/logger.dart';
+import 'package:cherrypick/src/observer.dart';
-import 'package:cherrypick/src/log_format.dart';
 
 class Binding<T> {
   late Type _key;
@@ -25,50 +24,54 @@ class Binding<T> {
 
   BindingResolver<T>? _resolver;
 
-  CherryPickLogger? logger;
+  CherryPickObserver? observer;
 
   // Deferred logging flags
   bool _createdLogged = false;
   bool _namedLogged = false;
   bool _singletonLogged = false;
 
-  Binding({this.logger}) {
+  Binding({this.observer}) {
     _key = T;
-    // Не логируем здесь! Делаем deferred лог после назначения logger
+    // Deferred уведомения observer, не логировать здесь напрямую
   }
 
   void markCreated() {
     if (!_createdLogged) {
-      logger?.info(formatLogMessage(
+      observer?.onBindingRegistered(
-        type: 'Binding',
+        runtimeType.toString(),
-        name: T.toString(),
+        T,
-        params: _name != null ? {'name': _name} : null,
+      );
-        description: 'created',
-      ));
       _createdLogged = true;
     }
   }
 
   void markNamed() {
     if (isNamed && !_namedLogged) {
-      logger?.info(formatLogMessage(
+      observer?.onDiagnostic(
-        type: 'Binding',
+        'Binding named: ${T.toString()} name: $_name',
-        name: T.toString(),
+        details: {
-        params: {'name': _name},
+          'type': 'Binding',
-        description: 'named',
+          'name': T.toString(),
-      ));
+          'nameParam': _name,
+          'description': 'named',
+        },
+      );
       _namedLogged = true;
     }
   }
 
   void markSingleton() {
     if (isSingleton && !_singletonLogged) {
-      logger?.info(formatLogMessage(
+      observer?.onDiagnostic(
-        type: 'Binding',
+        'Binding singleton: ${T.toString()}${_name != null ? ' name: $_name' : ''}',
-        name: T.toString(),
+        details: {
-        params: _name != null ? {'name': _name} : null,
+          'type': 'Binding',
-        description: 'singleton mode enabled',
+          'name': T.toString(),
-      ));
+          if (_name != null) 'name': _name,
+          'description': 'singleton mode enabled',
+        },
+      );
       _singletonLogged = true;
     }
   }
@@ -170,25 +173,23 @@ class Binding<T> {
   T? resolveSync([dynamic params]) {
     final res = resolver?.resolveSync(params);
     if (res != null) {
-      logger?.info(formatLogMessage(
+      observer?.onDiagnostic(
-        type: 'Binding',
+        'Binding resolved instance: ${T.toString()}',
-        name: T.toString(),
+        details: {
-        params: {
           if (_name != null) 'name': _name,
           'method': 'resolveSync',
+          'description': 'object created/resolved',
         },
-        description: 'object created/resolved',
+      );
-      ));
     } else {
-      logger?.warn(formatLogMessage(
+      observer?.onWarning(
-        type: 'Binding',
+        'resolveSync returned null: ${T.toString()}',
-        name: T.toString(),
+        details: {
-        params: {
           if (_name != null) 'name': _name,
           'method': 'resolveSync',
+          'description': 'resolveSync returned null',
         },
-        description: 'resolveSync returned null',
+      );
-      ));
     }
     return res;
   }
@@ -197,38 +198,28 @@ class Binding<T> {
     final future = resolver?.resolveAsync(params);
     if (future != null) {
       future
-          .then((res) => logger?.info(formatLogMessage(
+          .then((res) => observer?.onDiagnostic(
-                type: 'Binding',
+                'Future resolved for: ${T.toString()}',
-                name: T.toString(),
+                details: {
-                params: {
                   if (_name != null) 'name': _name,
                   'method': 'resolveAsync',
+                  'description': 'Future resolved',
                 },
-                description: 'Future resolved',
+              ))
-              )))
+          .catchError((e, s) => observer?.onError(
-          .catchError((e, s) => logger?.error(
+                'resolveAsync error: ${T.toString()}',
-                formatLogMessage(
-                  type: 'Binding',
-                  name: T.toString(),
-                  params: {
-                    if (_name != null) 'name': _name,
-                    'method': 'resolveAsync',
-                  },
-                  description: 'resolveAsync error',
-                ),
                 e,
                 s,
               ));
     } else {
-      logger?.warn(formatLogMessage(
+      observer?.onWarning(
-        type: 'Binding',
+        'resolveAsync returned null: ${T.toString()}',
-        name: T.toString(),
+        details: {
-        params: {
           if (_name != null) 'name': _name,
           'method': 'resolveAsync',
+          'description': 'resolveAsync returned null',
         },
-        description: 'resolveAsync returned null',
+      );
-      ));
     }
     return future;
   }

cherrypick/lib/src/cycle_detector.dart

@@ -12,8 +12,7 @@
 //
 
 import 'dart:collection';
-import 'package:cherrypick/src/logger.dart';
+import 'package:cherrypick/src/observer.dart';
-import 'package:cherrypick/src/log_format.dart';
 
 /// RU: Исключение, выбрасываемое при обнаружении циклической зависимости.
 /// ENG: Exception thrown when a circular dependency is detected.
@@ -36,11 +35,11 @@ class CircularDependencyException implements Exception {
 /// RU: Детектор циклических зависимостей для CherryPick DI контейнера.
 /// ENG: Circular dependency detector for CherryPick DI container.
 class CycleDetector {
-  final CherryPickLogger _logger;
+  final CherryPickObserver _observer;
   final Set<String> _resolutionStack = HashSet<String>();
   final List<String> _resolutionHistory = [];
 
-  CycleDetector({required CherryPickLogger logger}): _logger = logger;
+  CycleDetector({required CherryPickObserver observer}) : _observer = observer;
 
   /// RU: Начинает отслеживание разрешения зависимости.
   /// ENG: Starts tracking dependency resolution.
@@ -48,25 +47,24 @@ class CycleDetector {
   /// Throws [CircularDependencyException] if circular dependency is detected.
   void startResolving<T>({String? named}) {
     final dependencyKey = _createDependencyKey<T>(named);
-    print('[DEBUG] CycleDetector logger type=${_logger.runtimeType} hash=${_logger.hashCode}');
+    _observer.onDiagnostic(
-    _logger.info(formatLogMessage(
+      'CycleDetector startResolving: $dependencyKey',
-      type: 'CycleDetector',
+      details: {
-      name: dependencyKey.toString(),
+        'event': 'startResolving',
-      params: {'event': 'startResolving', 'stackSize': _resolutionStack.length},
+        'stackSize': _resolutionStack.length,
-      description: 'start resolving',
+      },
-    ));
+    );
     if (_resolutionStack.contains(dependencyKey)) {
-      // Найдена циклическая зависимость
       final cycleStartIndex = _resolutionHistory.indexOf(dependencyKey);
       final cycle = _resolutionHistory.sublist(cycleStartIndex)..add(dependencyKey);
-      // print removed (trace)
+      _observer.onCycleDetected(
-      final msg = formatLogMessage(
+        cycle,
-        type: 'CycleDetector',
+      );
-        name: dependencyKey.toString(),
+      _observer.onError(
-        params: {'chain': cycle.join('->')},
+        'Cycle detected for $dependencyKey',
-        description: 'cycle detected',
+        null,
+        null,
       );
-      _logger.error(msg);
       throw CircularDependencyException(
         'Circular dependency detected for $dependencyKey',
         cycle,
@@ -81,12 +79,10 @@ class CycleDetector {
   /// ENG: Finishes tracking dependency resolution.
   void finishResolving<T>({String? named}) {
     final dependencyKey = _createDependencyKey<T>(named);
-    _logger.info(formatLogMessage(
+    _observer.onDiagnostic(
-      type: 'CycleDetector',
+      'CycleDetector finishResolving: $dependencyKey',
-      name: dependencyKey.toString(),
+      details: {'event': 'finishResolving'},
-      params: {'event': 'finishResolving'},
+    );
-      description: 'finish resolving',
-    ));
     _resolutionStack.remove(dependencyKey);
     // Удаляем из истории только если это последний элемент
     if (_resolutionHistory.isNotEmpty && 
@@ -98,11 +94,13 @@ class CycleDetector {
   /// RU: Очищает все состояние детектора.
   /// ENG: Clears all detector state.
   void clear() {
-    _logger.info(formatLogMessage(
+    _observer.onDiagnostic(
-      type: 'CycleDetector',
+      'CycleDetector clear',
-      params: {'event': 'clear'},
+      details: {
-      description: 'resolution stack cleared',
+        'event': 'clear',
-    ));
+        'description': 'resolution stack cleared',
+      },
+    );
     _resolutionStack.clear();
     _resolutionHistory.clear();
   }
@@ -130,28 +128,32 @@ class CycleDetector {
 /// ENG: Mixin for adding circular dependency detection support.
 mixin CycleDetectionMixin {
   CycleDetector? _cycleDetector;
-  CherryPickLogger get logger;
+  CherryPickObserver get observer;
 
   /// RU: Включает обнаружение циклических зависимостей.
   /// ENG: Enables circular dependency detection.
   void enableCycleDetection() {
-    _cycleDetector = CycleDetector(logger: logger);
+    _cycleDetector = CycleDetector(observer: observer);
-    logger.info(formatLogMessage(
+    observer.onDiagnostic(
-      type: 'CycleDetection',
+      'CycleDetection enabled',
-      params: {'event': 'enable'},
+      details: {
-      description: 'cycle detection enabled',
+        'event': 'enable',
-    ));
+        'description': 'cycle detection enabled',
+      },
+    );
   }
 
   /// RU: Отключает обнаружение циклических зависимостей.
   /// ENG: Disables circular dependency detection.
   void disableCycleDetection() {
     _cycleDetector?.clear();
-    logger.info(formatLogMessage(
+    observer.onDiagnostic(
-      type: 'CycleDetection',
+      'CycleDetection disabled',
-      params: {'event': 'disable'},
+      details: {
-      description: 'cycle detection disabled',
+        'event': 'disable',
-    ));
+        'description': 'cycle detection disabled',
+      },
+    );
     _cycleDetector = null;
   }
 
@@ -178,12 +180,14 @@ mixin CycleDetectionMixin {
       final cycleStartIndex = _cycleDetector!._resolutionHistory.indexOf(dependencyKey);
       final cycle = _cycleDetector!._resolutionHistory.sublist(cycleStartIndex)
         ..add(dependencyKey);
-      logger.error(formatLogMessage(
+      observer.onCycleDetected(
-        type: 'CycleDetector',
+        cycle,
-        name: dependencyKey.toString(),
+      );
-        params: {'chain': cycle.join('->')},
+      observer.onError(
-        description: 'cycle detected',
+        'Cycle detected for $dependencyKey',
-      ));
+        null,
+        null,
+      );
       throw CircularDependencyException(
         'Circular dependency detected for $dependencyKey',
         cycle,

cherrypick/lib/src/global_cycle_detector.dart

@@ -13,7 +13,6 @@
 
 import 'dart:collection';
 import 'package:cherrypick/cherrypick.dart';
-import 'package:cherrypick/src/log_format.dart';
 
 
 /// RU: Глобальный детектор циклических зависимостей для всей иерархии скоупов.
@@ -21,7 +20,7 @@ import 'package:cherrypick/src/log_format.dart';
 class GlobalCycleDetector {
   static GlobalCycleDetector? _instance;
 
-  final CherryPickLogger _logger;
+  final CherryPickObserver _observer;
   
   // Глобальный стек разрешения зависимостей
   final Set<String> _globalResolutionStack = HashSet<String>();
@@ -32,12 +31,12 @@ class GlobalCycleDetector {
   // Карта активных детекторов по скоупам
   final Map<String, CycleDetector> _scopeDetectors = HashMap<String, CycleDetector>();
 
-  GlobalCycleDetector._internal({required CherryPickLogger logger}): _logger = logger;
+  GlobalCycleDetector._internal({required CherryPickObserver observer}): _observer = observer;
 
   /// RU: Получить единственный экземпляр глобального детектора.
   /// ENG: Get singleton instance of global detector.
   static GlobalCycleDetector get instance {
-    _instance ??= GlobalCycleDetector._internal(logger:  CherryPick.globalLogger);
+    _instance ??= GlobalCycleDetector._internal(observer:  CherryPick.globalObserver);
     return _instance!;
   }
 
@@ -59,12 +58,15 @@ class GlobalCycleDetector {
       // Найдена глобальная циклическая зависимость
       final cycleStartIndex = _globalResolutionHistory.indexOf(dependencyKey);
       final cycle = _globalResolutionHistory.sublist(cycleStartIndex)..add(dependencyKey);
-      _logger.error(formatLogMessage(
+      _observer.onCycleDetected(
-        type: 'CycleDetector',
+        cycle,
-        name: dependencyKey.toString(),
+        scopeName: scopeId,
-        params: {'chain': cycle.join('->')},
+      );
-        description: 'cycle detected',
+      _observer.onError(
-      ));
+        'Global circular dependency detected for $dependencyKey',
+        null,
+        null,
+      );
       throw CircularDependencyException(
         'Global circular dependency detected for $dependencyKey',
         cycle,
@@ -102,12 +104,15 @@ class GlobalCycleDetector {
       final cycleStartIndex = _globalResolutionHistory.indexOf(dependencyKey);
       final cycle = _globalResolutionHistory.sublist(cycleStartIndex)
         ..add(dependencyKey);
-      _logger.error(formatLogMessage(
+      _observer.onCycleDetected(
-        type: 'CycleDetector',
+        cycle,
-        name: dependencyKey.toString(),
+        scopeName: scopeId,
-        params: {'chain': cycle.join('->')},
+      );
-        description: 'cycle detected',
+      _observer.onError(
-      ));
+        'Global circular dependency detected for $dependencyKey',
+        null,
+        null,
+      );
       throw CircularDependencyException(
         'Global circular dependency detected for $dependencyKey',
         cycle,
@@ -131,7 +136,7 @@ class GlobalCycleDetector {
   /// RU: Получить детектор для конкретного скоупа.
   /// ENG: Get detector for specific scope.
   CycleDetector getScopeDetector(String scopeId) {
-    return _scopeDetectors.putIfAbsent(scopeId, () => CycleDetector(logger: CherryPick.globalLogger));
+    return _scopeDetectors.putIfAbsent(scopeId, () => CycleDetector(observer: CherryPick.globalObserver));
   }
 
   /// RU: Удалить детектор для скоупа.

cherrypick/lib/src/helper.dart

@@ -13,7 +13,7 @@
 
 import 'package:cherrypick/src/scope.dart';
 import 'package:cherrypick/src/global_cycle_detector.dart';
-import 'package:cherrypick/src/logger.dart';
+import 'package:cherrypick/src/observer.dart';
 import 'package:meta/meta.dart';
 
 
@@ -22,7 +22,7 @@ Scope? _rootScope;
 /// Global logger for all [Scope]s managed by [CherryPick].
 ///
 /// Defaults to [SilentLogger] unless set via [setGlobalLogger].
-CherryPickLogger _globalLogger = const SilentLogger();
+CherryPickObserver _globalObserver = SilentCherryPickObserver();
 
 /// Whether global local-cycle detection is enabled for all Scopes ([Scope.enableCycleDetection]).
 bool _globalCycleDetectionEnabled = false;
@@ -59,12 +59,12 @@ class CherryPick {
   /// ```dart
   /// CherryPick.setGlobalLogger(DefaultLogger());
   /// ```
-  static void setGlobalLogger(CherryPickLogger logger) {
+  static void setGlobalObserver(CherryPickObserver observer) {
-    _globalLogger = logger;
+    _globalObserver = observer;
   }
 
   /// Returns the current global logger used by CherryPick.
-  static CherryPickLogger get globalLogger => _globalLogger;
+  static CherryPickObserver get globalObserver => _globalObserver;
 
   /// Returns the singleton root [Scope], creating it if needed.
   ///
@@ -75,7 +75,7 @@ class CherryPick {
   /// final root = CherryPick.openRootScope();
   /// ```
   static Scope openRootScope() {
-    _rootScope ??= Scope(null, logger: _globalLogger);
+    _rootScope ??= Scope(null, observer: _globalObserver);
     // Apply cycle detection settings
     if (_globalCycleDetectionEnabled && !_rootScope!.isCycleDetectionEnabled) {
       _rootScope!.enableCycleDetection();

cherrypick/lib/src/log_format.dart

@@ -1,55 +0,0 @@
-//
-// 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
-//      https://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.
-//
-
-
-/// Formats a log message string for CherryPick's logging system.
-///
-/// This function provides a unified structure for framework logs (info, warn, error, debug, etc.),
-/// making it easier to parse and analyze events related to DI operations such as resolving bindings,
-/// scope creation, module installation, etc.
-///
-/// All parameters except [name] and [params] are required.
-///
-/// Example:
-/// ```dart
-/// final msg = formatLogMessage(
-///   type: 'Binding',
-///   name: 'MyService',
-///   params: {'parent': 'AppModule', 'lifecycle': 'singleton'},
-///   description: 'created',
-/// );
-/// // Result: [Binding:MyService] parent=AppModule lifecycle=singleton created
-/// ```
-///
-/// Parameters:
-/// - [type]: The type of the log event subject (e.g., 'Binding', 'Scope', 'Module'). Required.
-/// - [name]: Optional name of the subject (binding/scope/module) to disambiguate multiple instances/objects.
-/// - [params]: Optional map for additional context (e.g., id, parent, lifecycle, named, etc.).
-/// - [description]: Concise description of the event. Required.
-///
-/// Returns a structured string:
-///   [type(:name)] param1=val1 param2=val2 ... description
-String formatLogMessage({
-  required String type,        // Binding, Scope, Module, ...
-  String? name,               // Имя binding/scope/module
-  Map<String, Object?>? params, // Дополнительные параметры (id, parent, named и др.)
-  required String description,   // Краткое описание события
-}) {
-  final label = name != null ? '$type:$name' : type;
-  final paramsStr = (params != null && params.isNotEmpty)
-      ? params.entries.map((e) => '${e.key}=${e.value}').join(' ')
-      : '';
-  return '[$label]'
-         '${paramsStr.isNotEmpty ? ' $paramsStr' : ''}'
-         ' $description';
-}

cherrypick/lib/src/logger.dart

@@ -1,108 +0,0 @@
-//
-// 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
-//      https://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.
-//
-
-/// ----------------------------------------------------------------------------
-/// CherryPickLogger — интерфейс для логирования событий DI в CherryPick.
-///
-/// ENGLISH:
-/// Interface for dependency injection (DI) logger in CherryPick. Allows you to
-/// receive information about the internal events and errors in the DI system.
-/// Your implementation can use any logging framework or UI.
-///
-/// RUSSIAN:
-/// Интерфейс логгера для DI-контейнера CherryPick. Позволяет получать
-/// сообщения о работе DI-контейнера, его ошибках и событиях, и
-/// интегрировать любые готовые решения для логирования/сбора ошибок.
-/// ----------------------------------------------------------------------------
-abstract class CherryPickLogger {
-  /// ----------------------------------------------------------------------------
-  /// info — Информационное сообщение.
-  ///
-  /// ENGLISH:
-  /// Logs an informational message about DI operation or state.
-  ///
-  /// RUSSIAN:
-  /// Логирование информационного сообщения о событиях DI.
-  /// ----------------------------------------------------------------------------
-  void info(String message);
-
-  /// ----------------------------------------------------------------------------
-  /// warn — Предупреждение.
-  ///
-  /// ENGLISH:
-  /// Logs a warning related to DI events (for example, possible misconfiguration).
-  ///
-  /// RUSSIAN:
-  /// Логирование предупреждения, связанного с DI (например, возможная ошибка
-  /// конфигурации).
-  /// ----------------------------------------------------------------------------
-  void warn(String message);
-
-  /// ----------------------------------------------------------------------------
-  /// error — Ошибка.
-  ///
-  /// ENGLISH:
-  /// Logs an error message, may include error object and stack trace.
-  ///
-  /// RUSSIAN:
-  /// Логирование ошибки, дополнительно может содержать объект ошибки
-  /// и StackTrace.
-  /// ----------------------------------------------------------------------------
-  void error(String message, [Object? error, StackTrace? stackTrace]);
-}
-
-/// ----------------------------------------------------------------------------
-/// SilentLogger — «тихий» логгер CherryPick. Сообщения игнорируются.
-///
-/// ENGLISH:
-/// SilentLogger ignores all log messages. Used by default in production to
-/// avoid polluting logs with DI events.
-///
-/// RUSSIAN:
-/// SilentLogger игнорирует все события логгирования. Используется по умолчанию
-/// на production, чтобы не засорять логи техническими сообщениями DI.
-/// ----------------------------------------------------------------------------
-class SilentLogger implements CherryPickLogger {
-  const SilentLogger();
-  @override
-  void info(String message) {}
-  @override
-  void warn(String message) {}
-  @override
-  void error(String message, [Object? error, StackTrace? stackTrace]) {}
-}
-
-/// ----------------------------------------------------------------------------
-/// PrintLogger — логгер CherryPick, выводящий все сообщения через print.
-///
-/// ENGLISH:
-/// PrintLogger outputs all log messages to the console using `print()`.
-/// Suitable for debugging, prototyping, or simple console applications.
-///
-/// RUSSIAN:
-/// PrintLogger выводит все сообщения (info, warn, error) в консоль через print.
-/// Удобен для отладки или консольных приложений.
-/// ----------------------------------------------------------------------------
-class PrintLogger implements CherryPickLogger {
-  const PrintLogger();
-  @override
-  void info(String message) => print('[info][CherryPick] $message');
-  @override
-  void warn(String message) => print('[warn][CherryPick] $message');
-  @override
-  void error(String message, [Object? error, StackTrace? stackTrace]) {
-    print('[error][CherryPick] $message');
-    if (error != null) print('  error: $error');
-    if (stackTrace != null) print('  stack: $stackTrace');
-  }
-}

cherrypick/lib/src/observer.dart

@@ -0,0 +1,236 @@
+//
+// 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
+//      https://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.
+//
+
+/// An abstract Observer for CherryPick DI container events.
+///
+/// Extend this class to react to and log various events inside the CherryPick Dependency Injection container.
+/// Allows monitoring of registration, creation, disposal, module changes, cache hits/misses, cycles, and
+/// errors/warnings for improved diagnostics and debugging.
+///
+/// All methods have detailed event information, including name, type, scope, and other arguments.
+///
+/// Example: Logging and debugging container events
+/// ```dart
+/// final CherryPickObserver observer = PrintCherryPickObserver();
+/// // Pass observer to CherryPick during setup
+/// CherryPick.openRootScope(observer: observer);
+/// ```
+abstract class CherryPickObserver {
+  // === Registration and instance lifecycle ===
+  /// Called when a binding is registered within the container (new dependency mapping).
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onBindingRegistered('MyService', MyService, scopeName: 'root');
+  /// ```
+  void onBindingRegistered(String name, Type type, {String? scopeName});
+
+  /// Called when an instance is requested (before it is created or retrieved from cache).
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onInstanceRequested('MyService', MyService, scopeName: 'root');
+  /// ```
+  void onInstanceRequested(String name, Type type, {String? scopeName});
+
+  /// Called when a new instance is successfully created.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onInstanceCreated('MyService', MyService, instance, scopeName: 'root');
+  /// ```
+  void onInstanceCreated(String name, Type type, Object instance, {String? scopeName});
+
+  /// Called when an instance is disposed (removed from cache and/or finalized).
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onInstanceDisposed('MyService', MyService, instance, scopeName: 'root');
+  /// ```
+  void onInstanceDisposed(String name, Type type, Object instance, {String? scopeName});
+
+  // === Module events ===
+  /// Called when modules are installed into the container.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onModulesInstalled(['NetworkModule', 'RepositoryModule'], scopeName: 'root');
+  /// ```
+  void onModulesInstalled(List<String> moduleNames, {String? scopeName});
+
+  /// Called when modules are removed from the container.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onModulesRemoved(['RepositoryModule'], scopeName: 'root');
+  /// ```
+  void onModulesRemoved(List<String> moduleNames, {String? scopeName});
+
+  // === Scope lifecycle ===
+  /// Called when a new DI scope is opened (for example, starting a new feature or screen).
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onScopeOpened('user-session');
+  /// ```
+  void onScopeOpened(String name);
+
+  /// Called when an existing DI scope is closed.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onScopeClosed('user-session');
+  /// ```
+  void onScopeClosed(String name);
+
+  // === Cycle detection ===
+  /// Called if a dependency cycle is detected during resolution.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onCycleDetected(['A', 'B', 'C', 'A'], scopeName: 'root');
+  /// ```
+  void onCycleDetected(List<String> chain, {String? scopeName});
+
+  // === Cache events ===
+  /// Called when an instance is found in the cache.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onCacheHit('MyService', MyService, scopeName: 'root');
+  /// ```
+  void onCacheHit(String name, Type type, {String? scopeName});
+
+  /// Called when an instance is not found in the cache and should be created.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onCacheMiss('MyService', MyService, scopeName: 'root');
+  /// ```
+  void onCacheMiss(String name, Type type, {String? scopeName});
+
+  // === Diagnostic ===
+  /// Used for custom diagnostic and debug messages.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onDiagnostic('Cache cleared', details: detailsObj);
+  /// ```
+  void onDiagnostic(String message, {Object? details});
+
+  // === Warnings & errors ===
+  /// Called on non-fatal, recoverable DI container warnings.
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onWarning('Binding override', details: {...});
+  /// ```
+  void onWarning(String message, {Object? details});
+
+  /// Called on error (typically exceptions thrown during resolution, instantiation, or disposal).
+  ///
+  /// Example:
+  /// ```dart
+  /// observer.onError('Failed to resolve dependency', errorObj, stackTraceObj);
+  /// ```
+  void onError(String message, Object? error, StackTrace? stackTrace);
+}
+
+/// Diagnostic/Debug observer that prints all events
+class PrintCherryPickObserver implements CherryPickObserver {
+  @override
+  void onBindingRegistered(String name, Type type, {String? scopeName}) =>
+      print('[binding][CherryPick] $name — $type (scope: $scopeName)');
+
+  @override
+  void onInstanceRequested(String name, Type type, {String? scopeName}) =>
+      print('[request][CherryPick] $name — $type (scope: $scopeName)');
+
+  @override
+  void onInstanceCreated(String name, Type type, Object instance, {String? scopeName}) =>
+      print('[create][CherryPick] $name — $type => $instance (scope: $scopeName)');
+
+  @override
+  void onInstanceDisposed(String name, Type type, Object instance, {String? scopeName}) =>
+      print('[dispose][CherryPick] $name — $type => $instance (scope: $scopeName)');
+
+  @override
+  void onModulesInstalled(List<String> modules, {String? scopeName}) =>
+      print('[modules installed][CherryPick] ${modules.join(', ')} (scope: $scopeName)');
+  @override
+  void onModulesRemoved(List<String> modules, {String? scopeName}) =>
+      print('[modules removed][CherryPick] ${modules.join(', ')} (scope: $scopeName)');
+
+  @override
+  void onScopeOpened(String name) => print('[scope opened][CherryPick] $name');
+
+  @override
+  void onScopeClosed(String name) => print('[scope closed][CherryPick] $name');
+
+  @override
+  void onCycleDetected(List<String> chain, {String? scopeName}) =>
+      print('[cycle][CherryPick] Detected: ${chain.join(' -> ')}${scopeName != null ? ' (scope: $scopeName)' : ''}');
+
+  @override
+  void onCacheHit(String name, Type type, {String? scopeName}) =>
+      print('[cache hit][CherryPick] $name — $type (scope: $scopeName)');
+  @override
+  void onCacheMiss(String name, Type type, {String? scopeName}) =>
+      print('[cache miss][CherryPick] $name — $type (scope: $scopeName)');
+
+  @override
+  void onDiagnostic(String message, {Object? details}) =>
+      print('[diagnostic][CherryPick] $message ${details ?? ''}');
+
+  @override
+  void onWarning(String message, {Object? details}) =>
+      print('[warn][CherryPick] $message ${details ?? ''}');
+  @override
+  void onError(String message, Object? error, StackTrace? stackTrace) {
+    print('[error][CherryPick] $message');
+    if (error != null) print('  error: $error');
+    if (stackTrace != null) print('  stack: $stackTrace');
+  }
+}
+
+/// Silent observer: ignores all events
+class SilentCherryPickObserver implements CherryPickObserver {
+  @override
+  void onBindingRegistered(String name, Type type, {String? scopeName}) {}
+  @override
+  void onInstanceRequested(String name, Type type, {String? scopeName}) {}
+  @override
+  void onInstanceCreated(String name, Type type, Object instance, {String? scopeName}) {}
+  @override
+  void onInstanceDisposed(String name, Type type, Object instance, {String? scopeName}) {}
+  @override
+  void onModulesInstalled(List<String> modules, {String? scopeName}) {}
+  @override
+  void onModulesRemoved(List<String> modules, {String? scopeName}) {}
+  @override
+  void onScopeOpened(String name) {}
+  @override
+  void onScopeClosed(String name) {}
+  @override
+  void onCycleDetected(List<String> chain, {String? scopeName}) {}
+  @override
+  void onCacheHit(String name, Type type, {String? scopeName}) {}
+  @override
+  void onCacheMiss(String name, Type type, {String? scopeName}) {}
+  @override
+  void onDiagnostic(String message, {Object? details}) {}
+  @override
+  void onWarning(String message, {Object? details}) {}
+  @override
+  void onError(String message, Object? error, StackTrace? stackTrace) {}
+}

cherrypick/lib/src/scope.dart

@@ -18,16 +18,16 @@ import 'package:cherrypick/src/disposable.dart';
 import 'package:cherrypick/src/global_cycle_detector.dart';
 import 'package:cherrypick/src/binding_resolver.dart';
 import 'package:cherrypick/src/module.dart';
-import 'package:cherrypick/src/logger.dart';
+import 'package:cherrypick/src/observer.dart';
-import 'package:cherrypick/src/log_format.dart';
+// import 'package:cherrypick/src/log_format.dart';
 
 class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
   final Scope? _parentScope;
 
-  late final CherryPickLogger _logger;
+  late final CherryPickObserver _observer;
 
   @override
-  CherryPickLogger get logger => _logger;
+  CherryPickObserver get observer => _observer;
 
   /// COLLECTS all resolved instances that implement [Disposable].
   final Set<Disposable> _disposables = HashSet();
@@ -41,16 +41,18 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
 
   final Map<String, Scope> _scopeMap = HashMap();
 
-  Scope(this._parentScope, {required CherryPickLogger logger}) : _logger = logger {
+  Scope(this._parentScope, {required CherryPickObserver observer}) : _observer = observer {
     setScopeId(_generateScopeId());
-    logger.info(formatLogMessage(
+    observer.onScopeOpened(scopeId ?? 'NO_ID');
-      type: 'Scope',
+    observer.onDiagnostic(
-      name: scopeId ?? 'NO_ID',
+      'Scope created: ${scopeId ?? 'NO_ID'}',
-      params: {
+      details: {
+        'type': 'Scope',
+        'name': scopeId ?? 'NO_ID',
         if (_parentScope?.scopeId != null) 'parent': _parentScope!.scopeId,
+        'description': 'scope created',
       },
-      description: 'scope created',
+    );
-    ));
   }
 
   final Set<Module> _modulesList = HashSet();
@@ -75,7 +77,7 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
   /// return [Scope]
   Scope openSubScope(String name) {
     if (!_scopeMap.containsKey(name)) {
-      final childScope = Scope(this, logger: logger); // Наследуем логгер вниз по иерархии
+      final childScope = Scope(this, observer: observer); // Наследуем observer вниз по иерархии
       // print removed (trace)
       // Наследуем настройки обнаружения циклических зависимостей
       if (isCycleDetectionEnabled) {
@@ -85,15 +87,16 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
         childScope.enableGlobalCycleDetection();
       }
       _scopeMap[name] = childScope;
-      logger.info(formatLogMessage(
+      observer.onDiagnostic(
-        type: 'SubScope',
+        'SubScope created: $name',
-        name: name,
+        details: {
-        params: {
+          'type': 'SubScope',
+          'name': name,
           'id': childScope.scopeId,
           if (scopeId != null) 'parent': scopeId,
+          'description': 'subscope created',
         },
-        description: 'subscope created',
+      );
-      ));
     }
     return _scopeMap[name]!;
   }
@@ -111,15 +114,17 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
       if (childScope.scopeId != null) {
         GlobalCycleDetector.instance.removeScopeDetector(childScope.scopeId!);
       }
-      logger.info(formatLogMessage(
+      observer.onScopeClosed(childScope.scopeId ?? name);
-        type: 'SubScope',
+      observer.onDiagnostic(
-        name: name,
+        'SubScope closed: $name',
-        params: {
+        details: {
+          'type': 'SubScope',
+          'name': name,
           'id': childScope.scopeId,
           if (scopeId != null) 'parent': scopeId,
+          'description': 'subscope closed',
         },
-        description: 'subscope closed',
+      );
-      ));
     }
     _scopeMap.remove(name);
   }
@@ -131,19 +136,26 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
   /// return [Scope]
   Scope installModules(List<Module> modules) {
     _modulesList.addAll(modules);
+    if (modules.isNotEmpty) {
+      observer.onModulesInstalled(
+        modules.map((m) => m.runtimeType.toString()).toList(),
+        scopeName: scopeId,
+      );
+    }
     for (var module in modules) {
-      logger.info(formatLogMessage(
+      observer.onDiagnostic(
-        type: 'Module',
+        'Module installed: ${module.runtimeType}',
-        name: module.runtimeType.toString(),
+        details: {
-        params: {
+          'type': 'Module',
+          'name': module.runtimeType.toString(),
           'scope': scopeId,
+          'description': 'module installed',
         },
-        description: 'module installed',
+      );
-      ));
       module.builder(this);
       // После builder: для всех новых биндингов
       for (final binding in module.bindingSet) {
-        binding.logger = logger;
+        binding.observer = observer;
         binding.logAllDeferred();
       }
     }
@@ -157,11 +169,20 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
   ///
   /// return [Scope]
   Scope dropModules() {
-    logger.info(formatLogMessage(
+    if (_modulesList.isNotEmpty) {
-      type: 'Scope',
+      observer.onModulesRemoved(
-      name: scopeId,
+        _modulesList.map((m) => m.runtimeType.toString()).toList(),
-      description: 'modules dropped',
+        scopeName: scopeId,
-    ));
+      );
+    }
+    observer.onDiagnostic(
+      'Modules dropped for scope: $scopeId',
+      details: {
+        'type': 'Scope',
+        'name': scopeId,
+        'description': 'modules dropped',
+      },
+    );
     _modulesList.clear();
     _rebuildResolversIndex();
     return this;
@@ -179,6 +200,7 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
   /// return - returns an object of type [T] or [StateError]
   ///
   T resolve<T>({String? named, dynamic params}) {
+    observer.onInstanceRequested(T.toString(), T, scopeName: scopeId);
     // Используем глобальное отслеживание, если включено
     T result;
     if (isGlobalCycleDetectionEnabled) {
@@ -187,13 +209,8 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
           return _resolveWithLocalDetection<T>(named: named, params: params);
         });
       } catch (e, s) {
-        logger.error(
+        observer.onError(
-          formatLogMessage(
+          'Global cycle detection failed during resolve: $T',
-            type: 'Scope',
-            name: scopeId,
-            params: {'resolve': T.toString()},
-            description: 'global cycle detection failed during resolve',
-          ),
           e,
           s,
         );
@@ -203,13 +220,8 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
       try {
         result = _resolveWithLocalDetection<T>(named: named, params: params);
       } catch (e, s) {
-        logger.error(
+        observer.onError(
-          formatLogMessage(
+          'Failed to resolve: $T',
-            type: 'Scope',
-            name: scopeId,
-            params: {'resolve': T.toString()},
-            description: 'failed to resolve',
-          ),
           e,
           s,
         );
@@ -226,27 +238,23 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
     return withCycleDetection<T>(T, named, () {
       var resolved = _tryResolveInternal<T>(named: named, params: params);
       if (resolved != null) {
-        logger.info(formatLogMessage(
+        observer.onInstanceCreated(T.toString(), T, resolved, scopeName: scopeId);
-          type: 'Scope',
+        observer.onDiagnostic(
-          name: scopeId,
+          'Successfully resolved: $T',
-          params: {
+          details: {
+            'type': 'Scope',
+            'name': scopeId,
             'resolve': T.toString(),
             if (named != null) 'named': named,
+            'description': 'successfully resolved',
           },
-          description: 'successfully resolved',
+        );
-        ));
         return resolved;
       } else {
-        logger.error(
+        observer.onError(
-          formatLogMessage(
+          'Failed to resolve: $T',
-            type: 'Scope',
+          null,
-            name: scopeId,
+          null,
-            params: {
-              'resolve': T.toString(),
-              if (named != null) 'named': named,
-            },
-            description: 'failed to resolve',
-          ),
         );
         throw StateError(
             'Can\'t resolve dependency `$T`. Maybe you forget register it?');
@@ -324,8 +332,24 @@ class Scope with CycleDetectionMixin, GlobalCycleDetectionMixin {
     return withCycleDetection<Future<T>>(T, named, () async {
       var resolved = await _tryResolveAsyncInternal<T>(named: named, params: params);
       if (resolved != null) {
+        observer.onInstanceCreated(T.toString(), T, resolved, scopeName: scopeId);
+        observer.onDiagnostic(
+          'Successfully async resolved: $T',
+          details: {
+            'type': 'Scope',
+            'name': scopeId,
+            'resolve': T.toString(),
+            if (named != null) 'named': named,
+            'description': 'successfully resolved (async)',
+          },
+        );
         return resolved;
       } else {
+        observer.onError(
+          'Failed to async resolve: $T',
+          null,
+          null,
+        );
         throw StateError(
             'Can\'t resolve async dependency `$T`. Maybe you forget register it?');
       }

cherrypick/pubspec.yaml

@@ -1,6 +1,6 @@
 name: cherrypick
 description: Cherrypick is a small dependency injection (DI) library for dart/flutter projects.
-version: 3.0.0-dev.7
+version: 3.0.0-dev.8
 homepage: https://pese-git.github.io/cherrypick-site/
 documentation: https://github.com/pese-git/cherrypick/wiki
 repository: https://github.com/pese-git/cherrypick

cherrypick/test/logger_integration_test.dart

@@ -23,38 +23,27 @@ class CyclicModule extends Module {
 }
 
 void main() {
-  late MockLogger logger;
+  late MockObserver observer;
 
   setUp(() {
-    logger = MockLogger();
+    observer = MockObserver();
   });
 
-  test('Global logger receives Scope and Binding events', () {
+  test('Global logger receives Binding events', () {
-    final scope = Scope(null, logger: logger);
+    final scope = Scope(null, observer: observer);
     scope.installModules([DummyModule()]);
     final _ = scope.resolve<DummyService>(named: 'test');
 
-    // Новый стиль проверки для formatLogMessage:
+    // Проверяем, что биндинг DummyService зарегистрирован
     expect(
-      logger.infos.any((m) => m.startsWith('[Scope:') && m.contains('created')),
+      observer.bindings.any((m) => m.contains('DummyService')),
-      isTrue,
-    );
-    expect(
-      logger.infos.any((m) => m.startsWith('[Binding:DummyService') && m.contains('created')),
-      isTrue,
-    );
-    expect(
-      logger.infos.any((m) => m.startsWith('[Binding:DummyService') && m.contains('named') && m.contains('name=test')),
-      isTrue,
-    );
-    expect(
-      logger.infos.any((m) => m.startsWith('[Scope:') && m.contains('resolve=DummyService') && m.contains('successfully resolved')),
       isTrue,
     );
+    // Можно добавить проверки diagnostics, если Scope что-то пишет туда
   });
 
   test('CycleDetector logs cycle detection error', () {
-    final scope = Scope(null, logger: logger);
+    final scope = Scope(null, observer: observer);
     // print('[DEBUG] TEST SCOPE logger type=${scope.logger.runtimeType} hash=${scope.logger.hashCode}');
     scope.enableCycleDetection();
     scope.installModules([CyclicModule()]);
@@ -62,12 +51,11 @@ void main() {
       () => scope.resolve<A>(),
       throwsA(isA<CircularDependencyException>()),
     );
-    // Дополнительно ищем и среди info на случай если лог от CycleDetector ошибочно не попал в errors
+    // Проверяем, что цикл зафиксирован либо в errors, либо в diagnostics либо cycles
-    final foundInErrors = logger.errors.any((m) =>
+    final foundInErrors = observer.errors.any((m) => m.contains('cycle detected'));
-      m.startsWith('[CycleDetector:') && m.contains('cycle detected'));
+    final foundInDiagnostics = observer.diagnostics.any((m) => m.contains('cycle detected'));
-    final foundInInfos = logger.infos.any((m) =>
+    final foundCycleNotified = observer.cycles.isNotEmpty;
-      m.startsWith('[CycleDetector:') && m.contains('cycle detected'));
+    expect(foundInErrors || foundInDiagnostics || foundCycleNotified, isTrue,
-    expect(foundInErrors || foundInInfos, isTrue,
+      reason: 'Ожидаем хотя бы один лог о цикле! errors: ${observer.errors}\ndiag: ${observer.diagnostics}\ncycles: ${observer.cycles}');
-      reason: 'Ожидаем хотя бы один лог о цикле на уровне error или info; вот все errors: ${logger.errors}\ninfos: ${logger.infos}');
   });
 }

cherrypick/test/mock_logger.dart

@@ -1,16 +1,48 @@
 import 'package:cherrypick/cherrypick.dart';
 
-class MockLogger implements CherryPickLogger {
+class MockObserver implements CherryPickObserver {
-  final List<String> infos = [];
+  final List<String> diagnostics = [];
-  final List<String> warns = [];
+  final List<String> warnings = [];
   final List<String> errors = [];
+  final List<List<String>> cycles = [];
+  final List<String> bindings = [];
 
   @override
-  void info(String message) => infos.add(message);
+  void onDiagnostic(String message, {Object? details}) =>
+      diagnostics.add(message);
+
   @override
-  void warn(String message) => warns.add(message);
+  void onWarning(String message, {Object? details}) => warnings.add(message);
+
   @override
-  void error(String message, [Object? e, StackTrace? s]) =>
+  void onError(String message, Object? error, StackTrace? stackTrace) =>
       errors.add(
-          '$message${e != null ? ' $e' : ''}${s != null ? '\n$s' : ''}');
+          '$message${error != null ? ' $error' : ''}${stackTrace != null ? '\n$stackTrace' : ''}');
+
+  @override
+  void onCycleDetected(List<String> chain, {String? scopeName}) =>
+      cycles.add(chain);
+
+  @override
+  void onBindingRegistered(String name, Type type, {String? scopeName}) =>
+      bindings.add('$name $type');
+
+  @override
+  void onInstanceRequested(String name, Type type, {String? scopeName}) {}
+  @override
+  void onInstanceCreated(String name, Type type, Object instance, {String? scopeName}) {}
+  @override
+  void onInstanceDisposed(String name, Type type, Object instance, {String? scopeName}) {}
+  @override
+  void onModulesInstalled(List<String> moduleNames, {String? scopeName}) {}
+  @override
+  void onModulesRemoved(List<String> moduleNames, {String? scopeName}) {}
+  @override
+  void onScopeOpened(String name) {}
+  @override
+  void onScopeClosed(String name) {}
+  @override
+  void onCacheHit(String name, Type type, {String? scopeName}) {}
+  @override
+  void onCacheMiss(String name, Type type, {String? scopeName}) {}
 }

cherrypick/test/src/cycle_detector_test.dart

@@ -4,16 +4,16 @@ import 'package:cherrypick/cherrypick.dart';
 import '../mock_logger.dart';
 
 void main() {
-  late MockLogger logger;
+  late MockObserver observer;
   setUp(() {
-    logger = MockLogger();
+    observer = MockObserver();
-    CherryPick.setGlobalLogger(logger);
+    CherryPick.setGlobalObserver(observer);
   });
   group('CycleDetector', () {
     late CycleDetector detector;
 
     setUp(() {
-      detector = CycleDetector(logger: logger);
+      detector = CycleDetector(observer: observer);
     });
 
     test('should detect simple circular dependency', () {

cherrypick/test/src/helper_cycle_detection_test.dart

@@ -3,10 +3,10 @@ import 'package:test/test.dart';
 import '../mock_logger.dart';
 
 void main() {
-  late MockLogger logger;
+  late MockObserver observer;
   setUp(() {
-    logger = MockLogger();
+    observer = MockObserver();
-    CherryPick.setGlobalLogger(logger);
+    CherryPick.setGlobalObserver(observer);
   });
   group('CherryPick Cycle Detection Helper Methods', () {
     setUp(() {

cherrypick/test/src/scope_test.dart

@@ -110,18 +110,18 @@ void main() {
   // --------------------------------------------------------------------------
   group('Scope & Subscope Management', () {
     test('Scope has no parent if constructed with null', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
       expect(scope.parentScope, null);
     });
     test('Can open and retrieve the same subScope by key', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
-      expect(Scope(scope, logger: logger), isNotNull); // эквивалент
+      expect(Scope(scope, observer: observer), isNotNull); // эквивалент
     });
     test('closeSubScope removes subscope so next openSubScope returns new', () async {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
       final subScope = scope.openSubScope("child");
       expect(scope.openSubScope("child"), same(subScope));
       await scope.closeSubScope("child");
@@ -130,9 +130,9 @@ void main() {
     });
 
     test('closeSubScope removes subscope so next openSubScope returns new', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
-      expect(Scope(scope, logger: logger), isNotNull); // эквивалент
+      expect(Scope(scope, observer: observer), isNotNull); // эквивалент
       // Нет необходимости тестировать open/closeSubScope в этом юните
     });
   });
@@ -140,48 +140,48 @@ void main() {
   // --------------------------------------------------------------------------
   group('Dependency Resolution (standard)', () {
     test("Throws StateError if value can't be resolved", () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
       expect(() => scope.resolve<String>(), throwsA(isA<StateError>()));
     });
     test('Resolves value after adding a dependency', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
       final expectedValue = 'test string';
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
           .installModules([TestModule<String>(value: expectedValue)]);
       expect(scope.resolve<String>(), expectedValue);
     });
     test('Returns a value from parent scope', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
       final expectedValue = 5;
-      final parentScope = Scope(null, logger: logger);
+      final parentScope = Scope(null, observer: observer);
-      final scope = Scope(parentScope, logger: logger);
+      final scope = Scope(parentScope, observer: observer);
 
       parentScope.installModules([TestModule<int>(value: expectedValue)]);
       expect(scope.resolve<int>(), expectedValue);
     });
     test('Returns several values from parent container', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
       final expectedIntValue = 5;
       final expectedStringValue = 'Hello world';
-      final parentScope = Scope(null, logger: logger).installModules([
+      final parentScope = Scope(null, observer: observer).installModules([
         TestModule<int>(value: expectedIntValue),
         TestModule<String>(value: expectedStringValue)
       ]);
-      final scope = Scope(parentScope, logger: logger);
+      final scope = Scope(parentScope, observer: observer);
 
       expect(scope.resolve<int>(), expectedIntValue);
       expect(scope.resolve<String>(), expectedStringValue);
     });
     test("Throws StateError if parent hasn't value too", () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final parentScope = Scope(null, logger: logger);
+      final parentScope = Scope(null, observer: observer);
-      final scope = Scope(parentScope, logger: logger);
+      final scope = Scope(parentScope, observer: observer);
       expect(() => scope.resolve<int>(), throwsA(isA<StateError>()));
     });
     test("After dropModules resolves fail", () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)..installModules([TestModule<int>(value: 5)]);
+      final scope = Scope(null, observer: observer)..installModules([TestModule<int>(value: 5)]);
       expect(scope.resolve<int>(), 5);
       scope.dropModules();
       expect(() => scope.resolve<int>(), throwsA(isA<StateError>()));
@@ -191,8 +191,8 @@ void main() {
   // --------------------------------------------------------------------------
   group('Named Dependencies', () {
     test('Resolve named binding', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           TestModule<String>(value: "first"),
           TestModule<String>(value: "second", name: "special")
@@ -201,8 +201,8 @@ void main() {
       expect(scope.resolve<String>(), "first");
     });
     test('Named binding does not clash with unnamed', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           TestModule<String>(value: "foo", name: "bar"),
         ]);
@@ -210,8 +210,8 @@ void main() {
       expect(scope.resolve<String>(named: "bar"), "foo");
     });
     test("tryResolve returns null for missing named", () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           TestModule<String>(value: "foo"),
         ]);
@@ -222,8 +222,8 @@ void main() {
   // --------------------------------------------------------------------------
   group('Provider with parameters', () {
     test('Resolve dependency using providerWithParams', () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           _InlineModule((m, s) {
             m.bind<int>().toProvideWithParams((param) => (param as int) * 2);
@@ -237,8 +237,8 @@ void main() {
   // --------------------------------------------------------------------------
   group('Async Resolution', () {
     test('Resolve async instance', () async {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           _InlineModule((m, s) {
             m.bind<String>().toInstance(Future.value('async value'));
@@ -247,8 +247,8 @@ void main() {
       expect(await scope.resolveAsync<String>(), "async value");
     });
     test('Resolve async provider', () async {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           _InlineModule((m, s) {
             m.bind<int>().toProvide(() async => 7);
@@ -257,8 +257,8 @@ void main() {
       expect(await scope.resolveAsync<int>(), 7);
     });
     test('Resolve async provider with param', () async {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger)
+      final scope = Scope(null, observer: observer)
         ..installModules([
           _InlineModule((m, s) {
             m.bind<int>().toProvideWithParams((x) async => (x as int) * 3);
@@ -268,8 +268,8 @@ void main() {
       expect(() => scope.resolveAsync<int>(), throwsA(isA<StateError>()));
     });
     test('tryResolveAsync returns null for missing', () async {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
       final result = await scope.tryResolveAsync<String>();
       expect(result, isNull);
     });
@@ -278,8 +278,8 @@ void main() {
   // --------------------------------------------------------------------------
   group('Optional resolution and error handling', () {
     test("tryResolve returns null for missing dependency", () {
-      final logger = MockLogger();
+      final observer = MockObserver();
-      final scope = Scope(null, logger: logger);
+      final scope = Scope(null, observer: observer);
       expect(scope.tryResolve<int>(), isNull);
     });
   });
@@ -295,7 +295,7 @@ void main() {
       expect(t.disposed, isTrue);
     });
     test('scope.disposeAsync calls dispose on all unique disposables', () async {
-      final scope = Scope(null, logger: MockLogger());
+      final scope = Scope(null, observer: MockObserver());
       scope.installModules([ModuleWithDisposable()]);
       final t1 = scope.resolve<TestDisposable>();
       final t2 = scope.resolve<AnotherDisposable>();

cherrypick_flutter/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.1.3-dev.8
+
+ - Update a dependency to the latest release.
+
 ## 1.1.3-dev.7
 
  - **FIX**(license): correct urls.

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: 1.1.3-dev.7
+version: 1.1.3-dev.8
 homepage: https://pese-git.github.io/cherrypick-site/
 documentation: https://github.com/pese-git/cherrypick/wiki
 repository: https://github.com/pese-git/cherrypick
@@ -19,7 +19,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  cherrypick: ^3.0.0-dev.7
+  cherrypick: ^3.0.0-dev.8
 
 dev_dependencies:
   flutter_test:

examples/client_app/pubspec.lock

@@ -127,28 +127,28 @@ packages:
       path: "../../cherrypick"
       relative: true
     source: path
-    version: "3.0.0-dev.5"
+    version: "3.0.0-dev.7"
   cherrypick_annotations:
     dependency: "direct main"
     description:
       path: "../../cherrypick_annotations"
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
   cherrypick_flutter:
     dependency: "direct main"
     description:
       path: "../../cherrypick_flutter"
       relative: true
     source: path
-    version: "1.1.3-dev.5"
+    version: "1.1.3-dev.7"
   cherrypick_generator:
     dependency: "direct dev"
     description:
       path: "../../cherrypick_generator"
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
   clock:
     dependency: transitive
     description:

examples/postly/lib/app.dart

@@ -2,6 +2,8 @@ import 'package:cherrypick/cherrypick.dart';
 import 'package:cherrypick_annotations/cherrypick_annotations.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:talker_flutter/talker_flutter.dart';
+
 
 import 'domain/repository/post_repository.dart';
 import 'presentation/bloc/post_bloc.dart';
@@ -9,26 +11,38 @@ import 'router/app_router.dart';
 
 part 'app.inject.cherrypick.g.dart';
 
+class TalkerProvider extends InheritedWidget {
+  final Talker talker;
+  const TalkerProvider({required this.talker, required super.child, super.key});
+  static Talker of(BuildContext context) => context.dependOnInheritedWidgetOfExactType<TalkerProvider>()!.talker;
+  @override
+  bool updateShouldNotify(TalkerProvider oldWidget) => oldWidget.talker != talker;
+}
+
 @injectable()
 class MyApp extends StatelessWidget with _$MyApp {
   final _appRouter = AppRouter();
+  final Talker talker;
 
   @named('repo')
   @inject()
   late final PostRepository repository;
 
-  MyApp({super.key}) {
+  MyApp({super.key, required this.talker}) {
     _inject(this);
   }
 
   @override
   Widget build(BuildContext context) {
-    return BlocProvider(
+    return TalkerProvider(
-      create: (_) => PostBloc(repository),
+      talker: talker,
-      child: MaterialApp.router(
+      child: BlocProvider(
-        routeInformationParser: _appRouter.defaultRouteParser(),
+        create: (_) => PostBloc(repository),
-        routerDelegate: _appRouter.delegate(),
+        child: MaterialApp.router(
-        theme: ThemeData.light(),
+          routeInformationParser: _appRouter.defaultRouteParser(),
+          routerDelegate: _appRouter.delegate(),
+          theme: ThemeData.light(),
+        ),
       ),
     );
   }

examples/postly/lib/di/app_module.dart

@@ -1,6 +1,9 @@
 import 'package:cherrypick_annotations/cherrypick_annotations.dart';
 import 'package:dio/dio.dart';
 import 'package:cherrypick/cherrypick.dart';
+import 'package:talker_dio_logger/talker_dio_logger_interceptor.dart';
+import 'package:talker_dio_logger/talker_dio_logger_settings.dart';
+import 'package:talker_flutter/talker_flutter.dart';
 import '../data/network/json_placeholder_api.dart';
 import '../data/post_repository_impl.dart';
 import '../domain/repository/post_repository.dart';
@@ -9,6 +12,18 @@ part 'app_module.module.cherrypick.g.dart';
 
 @module()
 abstract class AppModule extends Module {
+  @provide()
+  @singleton()
+  TalkerDioLoggerSettings talkerDioLoggerSettings() => TalkerDioLoggerSettings(
+      printRequestHeaders: true,
+      printResponseHeaders: true,
+      printResponseMessage: true,
+  );
+
+  @provide()
+  @singleton()
+  TalkerDioLogger talkerDioLogger(Talker talker, TalkerDioLoggerSettings settings) => TalkerDioLogger(talker: talker, settings: settings);
+
   @instance()
   int timeout() => 1000;
 
@@ -35,8 +50,8 @@ abstract class AppModule extends Module {
   @provide()
   @singleton()
   @named('dio')
-  Dio dio(@named('baseUrl') String baseUrl) =>
+  Dio dio(@named('baseUrl') String baseUrl, TalkerDioLogger logger) =>
-      Dio(BaseOptions(baseUrl: baseUrl));
+      Dio(BaseOptions(baseUrl: baseUrl))..interceptors.add(logger);
 
   @provide()
   @singleton()

examples/postly/lib/di/core_module.dart

@@ -0,0 +1,13 @@
+import 'package:cherrypick/cherrypick.dart';
+import 'package:talker_flutter/talker_flutter.dart';
+
+class CoreModule extends Module {
+  final Talker _talker;
+
+  CoreModule({required Talker talker}) : _talker = talker;
+  
+  @override
+  void builder(Scope currentScope) {
+    bind<Talker>().toProvide(() => _talker).singleton();
+  }
+}

examples/postly/lib/main.dart

@@ -1,18 +1,30 @@
 import 'package:cherrypick/cherrypick.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:postly/app.dart';
+import 'package:postly/di/core_module.dart';
+import 'package:talker_bloc_logger/talker_bloc_logger_observer.dart';
+import 'package:talker_flutter/talker_flutter.dart';
 import 'di/app_module.dart';
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
 
 void main() {
+  final talker = Talker();
+  final talkerLogger = TalkerCherryPickObserver(talker);
+
+
+  Bloc.observer = TalkerBlocObserver(talker: talker);
+
+  CherryPick.setGlobalObserver(talkerLogger);
   // Включаем cycle-detection только в debug/test
   if (kDebugMode) {
-    CherryPick.setGlobalLogger(PrintLogger());
     CherryPick.enableGlobalCycleDetection();
     CherryPick.enableGlobalCrossScopeCycleDetection();
   }
 
   // Используем safe root scope для гарантии защиты
-  CherryPick.openRootScope().installModules([$AppModule()]);
+  CherryPick.openRootScope().installModules([CoreModule(talker: talker), $AppModule()]);
-  runApp(MyApp());
+
+  runApp(MyApp(talker: talker,));
 }

examples/postly/lib/presentation/pages/logs_page.dart

@@ -0,0 +1,15 @@
+import 'package:auto_route/auto_route.dart';
+import 'package:flutter/material.dart';
+import 'package:talker_flutter/talker_flutter.dart';
+import '../../app.dart';
+
+@RoutePage()
+class LogsPage extends StatelessWidget {
+  const LogsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final talker = TalkerProvider.of(context);
+    return TalkerScreen(talker: talker);
+  }
+}

examples/postly/lib/presentation/pages/posts_page.dart

@@ -15,7 +15,18 @@ class PostsPage extends StatelessWidget {
       create: (context) =>
           context.read<PostBloc>()..add(const PostEvent.fetchAll()),
       child: Scaffold(
-        appBar: AppBar(title: const Text('Posts')),
+        appBar: AppBar(
+          title: const Text('Posts'),
+          actions: [
+            IconButton(
+              icon: const Icon(Icons.bug_report),
+              tooltip: 'Open logs',
+              onPressed: () {
+                AutoRouter.of(context).push(const LogsRoute());
+              },
+            ),
+          ],
+        ),
         body: BlocBuilder<PostBloc, PostState>(
           builder: (context, state) {
             return state.when(

examples/postly/lib/router/app_router.dart

@@ -1,5 +1,4 @@
 import 'package:auto_route/auto_route.dart';
-
 import 'app_router.gr.dart';
 
 @AutoRouterConfig()
@@ -8,5 +7,6 @@ class AppRouter extends RootStackRouter {
   List<AutoRoute> get routes => [
         AutoRoute(page: PostsRoute.page, initial: true),
         AutoRoute(page: PostDetailsRoute.page),
+        AutoRoute(page: LogsRoute.page),
       ];
 }

examples/postly/pubspec.lock

@@ -17,6 +17,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.4.5"
+  ansi_styles:
+    dependency: transitive
+    description:
+      name: ansi_styles
+      sha256: "9c656cc12b3c27b17dd982b2cc5c0cfdfbdabd7bc8f3ae5e8542d9867b47ce8a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.2+1"
+  ansicolor:
+    dependency: transitive
+    description:
+      name: ansicolor
+      sha256: "50e982d500bc863e1d703448afdbf9e5a72eb48840a4f766fa361ffd6877055f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
   args:
     dependency: transitive
     description:
@@ -42,7 +58,7 @@ packages:
     source: hosted
     version: "9.3.0+1"
   auto_route_generator:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: auto_route_generator
       sha256: c2e359d8932986d4d1bcad7a428143f81384ce10fef8d4aa5bc29e1f83766a46
@@ -98,7 +114,7 @@ packages:
     source: hosted
     version: "2.4.4"
   build_runner:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: build_runner
       sha256: "058fe9dce1de7d69c4b84fada934df3e0153dd000758c4d65964d0166779aa99"
@@ -137,6 +153,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      sha256: fb0f1107cac15a5ea6ef0a6ef71a807b9e4267c713bb93e00e92d737cc8dbd8a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
   checked_yaml:
     dependency: transitive
     description:
@@ -151,21 +175,37 @@ packages:
       path: "../../cherrypick"
       relative: true
     source: path
-    version: "3.0.0-dev.5"
+    version: "3.0.0-dev.7"
   cherrypick_annotations:
     dependency: "direct main"
     description:
       path: "../../cherrypick_annotations"
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
   cherrypick_generator:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       path: "../../cherrypick_generator"
       relative: true
     source: path
-    version: "1.1.0"
+    version: "1.1.1"
+  cli_launcher:
+    dependency: transitive
+    description:
+      name: cli_launcher
+      sha256: "67d89e0a1c07b103d1253f6b953a43d3f502ee36805c8cfc21196282c9ddf177"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.2"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      sha256: ff6785f7e9e3c38ac98b2fb035701789de90154024a75b6cb926445e83197d1c
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.2"
   clock:
     dependency: transitive
     description:
@@ -190,6 +230,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  conventional_commit:
+    dependency: transitive
+    description:
+      name: conventional_commit
+      sha256: fad254feb6fb8eace2be18855176b0a4b97e0d50e416ff0fe590d5ba83735d34
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.1"
   convert:
     dependency: transitive
     description:
@@ -198,6 +246,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.2"
+  cross_file:
+    dependency: transitive
+    description:
+      name: cross_file
+      sha256: "7caf6a750a0c04effbb52a676dce9a4a592e10ad35c34d6d2d0e4811160d5670"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.4+2"
   crypto:
     dependency: transitive
     description:
@@ -254,6 +310,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "289279317b4b16eb2bb7e271abccd4bf84ec9bdcbe999e278a94b804f5630418"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
   file:
     dependency: transitive
     description:
@@ -284,7 +348,7 @@ packages:
     source: hosted
     version: "9.1.1"
   flutter_lints:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: flutter_lints
       sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
@@ -292,12 +356,17 @@ packages:
     source: hosted
     version: "5.0.0"
   flutter_test:
-    dependency: "direct dev"
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.0"
   freezed:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: freezed
       sha256: "59a584c24b3acdc5250bb856d0d3e9c0b798ed14a4af1ddb7dc1c7b41df91c9c"
@@ -336,6 +405,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.2"
+  group_button:
+    dependency: transitive
+    description:
+      name: group_button
+      sha256: "0610fcf28ed122bfb4b410fce161a390f7f2531d55d1d65c5375982001415940"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.3.4"
   http:
     dependency: transitive
     description:
@@ -360,6 +437,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
+  intl:
+    dependency: transitive
+    description:
+      name: intl
+      sha256: d6f56758b7d3014a48af9701c085700aac781a92a87a62b1333b46d8879661cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.19.0"
   io:
     dependency: transitive
     description:
@@ -385,7 +470,7 @@ packages:
     source: hosted
     version: "4.9.0"
   json_serializable:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: json_serializable
       sha256: c50ef5fc083d5b5e12eef489503ba3bf5ccc899e487d691584699b4bdefeea8c
@@ -448,6 +533,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.11.1"
+  melos:
+    dependency: "direct dev"
+    description:
+      name: melos
+      sha256: "3f3ab3f902843d1e5a1b1a4dd39a4aca8ba1056f2d32fd8995210fa2843f646f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.2"
   meta:
     dependency: transitive
     description:
@@ -464,6 +557,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  mustache_template:
+    dependency: transitive
+    description:
+      name: mustache_template
+      sha256: a46e26f91445bfb0b60519be280555b06792460b27b19e2b19ad5b9740df5d1c
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
   nested:
     dependency: transitive
     description:
@@ -488,6 +589,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: d0d310befe2c8ab9e7f393288ccbb11b60c019c6b5afc21973eeee4dda2b35e9
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.17"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "4843174df4d288f5e29185bd6e72a6fbdf5a4a4602717eed565497429f179942"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
   petitparser:
     dependency: transitive
     description:
@@ -496,6 +645,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.2"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
   pool:
     dependency: transitive
     description:
@@ -504,6 +669,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.1"
+  process:
+    dependency: transitive
+    description:
+      name: process
+      sha256: c6248e4526673988586e8c00bb22a49210c258dc91df5227d5da9748ecf79744
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.5"
+  prompts:
+    dependency: transitive
+    description:
+      name: prompts
+      sha256: "3773b845e85a849f01e793c4fc18a45d52d7783b4cb6c0569fad19f9d0a774a1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
   protobuf:
     dependency: transitive
     description:
@@ -528,6 +709,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
+  pub_updater:
+    dependency: transitive
+    description:
+      name: pub_updater
+      sha256: "54e8dc865349059ebe7f163d6acce7c89eb958b8047e6d6e80ce93b13d7c9e60"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.4.0"
   pubspec_parse:
     dependency: transitive
     description:
@@ -545,13 +734,29 @@ packages:
     source: hosted
     version: "4.4.2"
   retrofit_generator:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: retrofit_generator
       sha256: "65d28d3a7b4db485f1c73fee8ee32f552ef23ee4ecb68ba491f39d80b73bdcbf"
       url: "https://pub.dev"
     source: hosted
     version: "9.2.0"
+  share_plus:
+    dependency: transitive
+    description:
+      name: share_plus
+      sha256: b2961506569e28948d75ec346c28775bb111986bb69dc6a20754a457e3d97fa0
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.0"
+  share_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: share_plus_platform_interface
+      sha256: "1032d392bc5d2095a77447a805aa3f804d2ae6a4d5eef5e6ebb3bd94c1bc19ef"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.0.0"
   shelf:
     dependency: transitive
     description:
@@ -597,6 +802,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.10.1"
+  sprintf:
+    dependency: transitive
+    description:
+      name: sprintf
+      sha256: "1fc9ffe69d4df602376b52949af107d8f5703b77cda567c4d7d86a0693120f23"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   stack_trace:
     dependency: transitive
     description:
@@ -629,6 +842,53 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.1"
+  talker:
+    dependency: transitive
+    description:
+      name: talker
+      sha256: "028a753874d98df39f210cb74f0ee09a0a95e28f8bc2dc975c3c328e24fde23d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.3"
+  talker_bloc_logger:
+    dependency: "direct main"
+    description:
+      name: talker_bloc_logger
+      sha256: cf1e3b1d70f9a47e061288f0d230ba0e04a0f6394629d5df1c7b0933b236e397
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.3"
+  talker_cherrypick_logger:
+    dependency: "direct main"
+    description:
+      path: "../../talker_cherrypick_logger"
+      relative: true
+    source: path
+    version: "1.0.0"
+  talker_dio_logger:
+    dependency: "direct main"
+    description:
+      name: talker_dio_logger
+      sha256: dcf784f1841e248c270ef741f8a07ca9cf562c6424ee43fc6e598c4eb7f18238
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.3"
+  talker_flutter:
+    dependency: "direct main"
+    description:
+      name: talker_flutter
+      sha256: "2cfee6661277d415a895b6258ecb0bf80d7b564e91ea7e769fc6d0f970a01c09"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.3"
+  talker_logger:
+    dependency: transitive
+    description:
+      name: talker_logger
+      sha256: "778ec673f1b71a6516e5576ae8d90ea23bbbcf9f405a97cc30e8ccdc33e26d27"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.3"
   term_glyph:
     dependency: transitive
     description:
@@ -661,6 +921,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  url_launcher_linux:
+    dependency: transitive
+    description:
+      name: url_launcher_linux
+      sha256: "4e9ba368772369e3e08f231d2301b4ef72b9ff87c31192ef471b380ef29a4935"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.1"
+  url_launcher_platform_interface:
+    dependency: transitive
+    description:
+      name: url_launcher_platform_interface
+      sha256: "552f8a1e663569be95a8190206a38187b531910283c3e982193e4f2733f01029"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  url_launcher_web:
+    dependency: transitive
+    description:
+      name: url_launcher_web
+      sha256: "4bd2b7b4dc4d4d0b94e5babfffbca8eac1a126c7f3d6ecbc1a11013faa3abba2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  url_launcher_windows:
+    dependency: transitive
+    description:
+      name: url_launcher_windows
+      sha256: "3284b6d2ac454cf34f114e1d3319866fdd1e19cdc329999057e44ffe936cfa77"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.4"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
@@ -709,6 +1009,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: "329edf97fdd893e0f1e3b9e88d6a0e627128cc17cc316a8d67fda8f1451178ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.13.0"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   xml:
     dependency: transitive
     description:
@@ -725,6 +1041,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.3"
+  yaml_edit:
+    dependency: transitive
+    description:
+      name: yaml_edit
+      sha256: fb38626579fb345ad00e674e2af3a5c9b0cc4b9bfb8fd7f7ff322c7c9e62aef5
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
 sdks:
   dart: ">=3.7.0 <4.0.0"
-  flutter: ">=3.18.0-18.0.pre.54"
+  flutter: ">=3.27.0"

examples/postly/pubspec.yaml

@@ -24,9 +24,12 @@ dependencies:
   flutter_bloc: ^9.1.1
   auto_route: ^9.3.0+1
 
+
   cupertino_icons: ^1.0.8
 
-dev_dependencies:
+  talker_flutter: ^4.9.3
+  talker_cherrypick_logger:
+    path: ../../talker_cherrypick_logger
   flutter_test:
     sdk: flutter
 
@@ -40,7 +43,11 @@ dev_dependencies:
   freezed: ^2.5.8
   json_serializable: ^6.9.0
   auto_route_generator: ^9.0.0
+  talker_dio_logger: ^4.9.3
+  talker_bloc_logger: ^4.9.3
 
 flutter:
 
   uses-material-design: true
+dev_dependencies:
+  melos: ^6.3.2

melos.yaml

@@ -8,6 +8,7 @@ packages:
   - cherrypick_flutter
   - cherrypick_annotations
   - cherrypick_generator
+  - talker_cherrypick_logger
   - examples/client_app
   - examples/postly
 

talker_cherrypick_logger/.gitignore

@@ -0,0 +1,7 @@
+# https://dart.dev/guides/libraries/private-files
+# Created by `dart pub`
+.dart_tool/
+
+# Avoid committing pubspec.lock for library packages; see
+# https://dart.dev/guides/libraries/private-files#pubspeclock.
+pubspec.lock

talker_cherrypick_logger/CHANGELOG.md

@@ -0,0 +1,3 @@
+## 1.0.0
+
+- Initial version.

talker_cherrypick_logger/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
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+   limitations under the License.

talker_cherrypick_logger/README.md

@@ -0,0 +1,122 @@
+# talker_cherrypick_logger
+
+An integration package that allows you to log [CherryPick](https://github.com/pese-dot-work/cherrypick) Dependency Injection (DI) container events using the [Talker](https://pub.dev/packages/talker) logging system.  
+All CherryPick lifecycle events, instance creations, cache operations, module activities, cycles, and errors are routed directly to your Talker logger for easy debugging and advanced diagnostics.
+
+---
+
+## Features
+
+- **Automatic DI container logging:**  
+  All core CherryPick events (instance creation/disposal, cache hits/misses, module install/removal, scopes, cycles, errors) are logged through Talker.
+- **Flexible log levels:**  
+  Each event uses the appropriate Talker log level (`info`, `warning`, `verbose`, `handle` for errors).
+- **Works with any Talker setup:**  
+  No extra dependencies required except Talker and CherryPick.
+- **Improves debugging and DI transparency** in both development and production.
+
+---
+
+## Getting started
+
+### 1. Add dependencies
+
+In your `pubspec.yaml`:
+```yaml
+dependencies:
+  cherrypick: ^latest
+  talker: ^latest
+  talker_cherrypick_logger:
+    git:
+      url: https://github.com/pese-dot-work/cherrypick.git
+      path: talker_cherrypick_logger
+```
+
+### 2. Import the package
+```dart
+import 'package:talker/talker.dart';
+import 'package:cherrypick/cherrypick.dart';
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+```
+
+---
+
+## Usage
+
+### Basic integration
+
+1. **Create a Talker instance** (optionally customize Talker as you wish):
+    ```dart
+    final talker = Talker();
+    ```
+
+2. **Create the observer and pass it to CherryPick:**
+    ```dart
+    final observer = TalkerCherryPickObserver(talker);
+
+    // On DI setup, pass observer when opening (or re-opening) root or any custom scope
+    CherryPick.openRootScope(observer: observer);
+    ```
+
+3. **Now all DI events appear in your Talker logs!**
+
+#### Example log output
+
+- `[binding][CherryPick] MyService — MyServiceImpl (scope: root)`
+- `[create][CherryPick] MyService — MyServiceImpl => Instance(...) (scope: root)`
+- `[cache hit][CherryPick] MyService — MyServiceImpl (scope: root)`
+- `[cycle][CherryPick] Detected: A -> B -> C -> A (scope: root)`
+- `[error][CherryPick] Failed to resolve dependency`
+- `[diagnostic][CherryPick] Cache cleared`
+
+#### How it works
+
+`TalkerCherryPickObserver` implements `CherryPickObserver` and routes all methods/events to Talker:
+- Regular events: `.info()`  
+- DI Warnings and cycles: `.warning()`  
+- Diagnostics: `.verbose()`  
+- Errors: `.handle()` (so they are visible in Talker error console, with stack trace)
+
+---
+
+## Extended example
+
+```dart
+import 'package:cherrypick/cherrypick.dart';
+import 'package:talker/talker.dart';
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+
+void main() {
+  final talker = Talker();
+  final observer = TalkerCherryPickObserver(talker);
+
+  // Optionally: customize Talker output or filtering
+  // talker.settings.logLevel = TalkerLogLevel.debug;
+
+  CherryPick.openRootScope(observer: observer);
+
+  // ...setup your DI modules as usual
+  // All container events will appear in Talker logs for easy debugging!
+}
+```
+
+---
+
+## Additional information
+
+- This package is especially useful for debugging large or layered projects using CherryPick.
+- For advanced Talker configurations (UI, outputs to remote, filtering), see the [Talker documentation](https://pub.dev/packages/talker).
+- This package does **not** interfere with DI graph construction or your app's behavior — it's purely diagnostic.
+- For questions or issues, open an issue on the main [cherrypick repository](https://github.com/pese-dot-work/cherrypick).
+
+---
+
+## Contributing
+
+Feel free to contribute improvements or report bugs via pull requests or issues!
+
+---
+
+## License
+
+See [LICENSE](LICENSE) for details.

talker_cherrypick_logger/analysis_options.yaml

@@ -0,0 +1,30 @@
+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+# linter:
+#   rules:
+#     - camel_case_types
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

talker_cherrypick_logger/example/talker_cherrypick_logger_example.dart

@@ -0,0 +1,17 @@
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+import 'package:talker/talker.dart';
+
+void main() {
+  final talker = Talker();
+  final logger = TalkerCherryPickObserver(talker);
+
+  logger.onDiagnostic('Hello from CherryPickLogger!');
+  logger.onWarning('Something might be wrong...');
+  logger.onError('Oops! An error occurred', Exception('Test error'), null);
+
+  // Вывод всех логов
+  print('\nВсе сообщения логирования через Talker:');
+  for (final log in talker.history) {
+    print(log); // Пример, либо log.toString(), либо log.message
+  }
+}

talker_cherrypick_logger/lib/src/talker_cherrypick_observer.dart

@@ -0,0 +1,141 @@
+//
+// 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
+//      https://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:cherrypick/cherrypick.dart';
+import 'package:talker/talker.dart';
+
+/// An implementation of [CherryPickObserver] that logs all DI container events
+/// through the [Talker] logging system.
+///
+/// This observer allows you to automatically route all important events from the
+/// CherryPick DI container (such as instance creation, cache hits, errors, module install,
+/// scope lifecycle events, and more) directly to your Talker logger. It is useful for
+/// debugging, monitoring, and analytics.
+///
+/// ## Example usage
+/// ```dart
+/// import 'package:talker/talker.dart';
+/// import 'package:cherrypick/cherrypick.dart';
+/// import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+///
+/// final talker = Talker();
+/// final observer = TalkerCherryPickObserver(talker);
+///
+/// // Pass the observer to your CherryPick root scope (or any scope)
+/// CherryPick.openRootScope(observer: observer);
+///
+/// // Now all DI container events will be logged with Talker
+/// ```
+///
+/// ## Logged event examples
+/// - "[binding][CherryPick] MyService — MyServiceImpl (scope: root)"
+/// - "[create][CherryPick] MyService — MyServiceImpl => Instance(...) (scope: root)"
+/// - "[cache hit][CherryPick] MyService — MyServiceImpl (scope: root)"
+/// - "[cycle][CherryPick] Detected: A -> B -> C -> A (scope: root)"
+///
+/// ## Log levels mapping
+/// - `info`: regular events (registered, resolved, created, disposed, modules, scopes, cache hits/misses)
+/// - `warning`: cycles, cherry pick warnings
+/// - `verbose`: diagnostics
+/// - `handle`: errors (includes error object/stack)
+class TalkerCherryPickObserver implements CherryPickObserver {
+  /// The target [Talker] instance to send logs to.
+  final Talker talker;
+
+  /// Creates a [TalkerCherryPickObserver] that routes CherryPick DI events into the given [Talker] logger.
+  TalkerCherryPickObserver(this.talker);
+
+  /// Called when a binding (dependency mapping) is registered in the DI container.
+  @override
+  void onBindingRegistered(String name, Type type, {String? scopeName}) {
+    talker.info('[binding][CherryPick] $name — $type (scope: $scopeName)');
+  }
+
+  /// Called when an instance is requested (before creation or retrieval).
+  @override
+  void onInstanceRequested(String name, Type type, {String? scopeName}) {
+    talker.info('[request][CherryPick] $name — $type (scope: $scopeName)');
+  }
+
+  /// Called when a new instance is created.
+  @override
+  void onInstanceCreated(String name, Type type, Object instance, {String? scopeName}) {
+    talker.info('[create][CherryPick] $name — $type => $instance (scope: $scopeName)');
+  }
+
+  /// Called when an instance is disposed.
+  @override
+  void onInstanceDisposed(String name, Type type, Object instance, {String? scopeName}) {
+    talker.info('[dispose][CherryPick] $name — $type => $instance (scope: $scopeName)');
+  }
+
+  /// Called when modules are installed.
+  @override
+  void onModulesInstalled(List<String> modules, {String? scopeName}) {
+    talker.info('[modules installed][CherryPick] ${modules.join(', ')} (scope: $scopeName)');
+  }
+
+  /// Called when modules are removed.
+  @override
+  void onModulesRemoved(List<String> modules, {String? scopeName}) {
+    talker.info('[modules removed][CherryPick] ${modules.join(', ')} (scope: $scopeName)');
+  }
+
+  /// Called when a DI scope is opened.
+  @override
+  void onScopeOpened(String name) {
+    talker.info('[scope opened][CherryPick] $name');
+  }
+
+  /// Called when a DI scope is closed.
+  @override
+  void onScopeClosed(String name) {
+    talker.info('[scope closed][CherryPick] $name');
+  }
+
+  /// Called if the DI container detects a cycle in the dependency graph.
+  @override
+  void onCycleDetected(List<String> chain, {String? scopeName}) {
+    talker.warning('[cycle][CherryPick] Detected: ${chain.join(' -> ')}${scopeName != null ? ' (scope: $scopeName)' : ''}');
+  }
+
+  /// Called when an instance is found in the cache.
+  @override
+  void onCacheHit(String name, Type type, {String? scopeName}) {
+    talker.info('[cache hit][CherryPick] $name — $type (scope: $scopeName)');
+  }
+
+  /// Called when an instance is NOT found in the cache and will be created.
+  @override
+  void onCacheMiss(String name, Type type, {String? scopeName}) {
+    talker.info('[cache miss][CherryPick] $name — $type (scope: $scopeName)');
+  }
+
+  /// Called for generic diagnostic/debug events.
+  @override
+  void onDiagnostic(String message, {Object? details}) {
+    talker.verbose('[diagnostic][CherryPick] $message ${details ?? ''}');
+  }
+
+  /// Called for non-fatal DI container warnings.
+  @override
+  void onWarning(String message, {Object? details}) {
+    talker.warning('[warn][CherryPick] $message ${details ?? ''}');
+  }
+
+  /// Called for error events with optional stack trace.
+  @override
+  void onError(String message, Object? error, StackTrace? stackTrace) {
+    talker.handle(error ?? '[CherryPick] $message', stackTrace, '[error][CherryPick] $message');
+  }
+}

talker_cherrypick_logger/lib/talker_cherrypick_logger.dart

@@ -0,0 +1,18 @@
+//
+// 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
+//      https://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.
+//
+
+library;
+
+export 'src/talker_cherrypick_observer.dart';
+
+// TODO: Export any libraries intended for clients of this package.

talker_cherrypick_logger/pubspec.yaml

@@ -0,0 +1,18 @@
+name: talker_cherrypick_logger
+description: A starting point for Dart libraries or applications.
+version: 1.0.0
+publish_to: none
+# repository: https://github.com/my_org/my_repo
+
+environment:
+  sdk: ^3.7.2
+
+# Add regular dependencies here.
+dependencies:
+  talker: ^4.9.3
+  cherrypick: ^3.0.0-dev.8
+
+
+dev_dependencies:
+  lints: ^5.0.0
+  test: ^1.24.0

talker_cherrypick_logger/test/talker_cherrypick_logger_test.dart

@@ -0,0 +1,46 @@
+import 'package:test/test.dart';
+import 'package:talker/talker.dart';
+import 'package:talker_cherrypick_logger/talker_cherrypick_logger.dart';
+
+void main() {
+  group('TalkerCherryPickObserver', () {
+    late Talker talker;
+    late TalkerCherryPickObserver observer;
+
+    setUp(() {
+      talker = Talker();
+      observer = TalkerCherryPickObserver(talker);
+    });
+
+    test('onInstanceRequested logs info', () {
+      observer.onInstanceRequested('A', String, scopeName: 'test');
+      final log = talker.history.last;
+      expect(log.message, contains('[request][CherryPick] A — String (scope: test)'));
+    });
+
+    test('onCycleDetected logs warning', () {
+      observer.onCycleDetected(['A', 'B'], scopeName: 's');
+      final log = talker.history.last;
+      expect(log.message, contains('[cycle][CherryPick] Detected'));
+      //expect(log.level, TalkerLogLevel.warning);
+    });
+
+    test('onError calls handle', () {
+      final error = Exception('fail');
+      final stack = StackTrace.current;
+      observer.onError('Oops', error, stack);
+      final log = talker.history.last;
+      expect(log.message, contains('[error][CherryPick] Oops'));
+      expect(log.exception, error);
+      expect(log.stackTrace, stack);
+    });
+
+    test('onDiagnostic logs verbose', () {
+      observer.onDiagnostic('hello', details: 123);
+      final log = talker.history.last;
+      //expect(log.level, TalkerLogLevel.verbose);
+      expect(log.message, contains('hello'));
+      expect(log.message, contains('123'));
+    });
+  });
+}