DependencyInjectionGenerator class

Generator that creates dependency injection methods for classes annotated with dependency injection annotations.

This generator automatically analyzes classes with annotations like @RegisterFactory, @RegisterSingleton, @RegisterLazySingleton, etc. and generates appropriate dependency injection methods that integrate with GetIt.

Supported Annotations

RegisterFactory: Creates new instance each time
RegisterSingleton: Creates instance immediately and reuses it
RegisterLazySingleton: Creates instance on first use, then reuses it
RegisterAsyncFactory: Creates new async instance each time
RegisterAsyncSingleton: Creates async instance immediately and reuses it
RegisterAsyncLazySingleton: Creates async instance on first use, then reuses it

Generated Output

For a class like:

@RegisterSingleton()
class MyService {
  final Repository _repository;
  final String _apiKey;

MyService(this._repository, [this._apiKey = 'default-key']);
}

It generates:

MyService getMyService({String apiKey = 'default-key'}) {
  return GetIt.instance.getOrRegister<MyService>(
      () => MyService(getRepository(), apiKey), RegisterAs.singleton);
}

For async classes:

@RegisterAsyncFactory()
class MyService {
  final Repository _repository;
  final String _apiKey;

MyService(this._repository, [this._apiKey = 'default-key']);

  Future<void> doSomething() async {
    // Your async service logic
  }
}

It generates:

Future<MyService> getMyService({String apiKey = 'default-key'}) async {
  return await GetIt.instance.getOrRegisterAsync<MyService>(
      () async => MyService(getRepository(), apiKey), RegisterAs.factoryAsync);
}

Supported Annotations

Generated Output

Constructors

Properties

Methods

Operators

builder library