Dart Ioc Container

ioc_container.dart

class IocContainer {
  final Map<Type, Object Function(IocContainer container)> _factories = {};

  IocContainer add<T>(T Function(IocContainer container) get) {
    _factories.putIfAbsent(
        typeOf<T>(), () => get as Object Function(IocContainer container));
    return this;
  }

  T get<T>() => _factories[typeOf<T>()]!(this) as T;
}

Type typeOf<T>() => T;

extension Extensions on IocContainer {
  IocContainer addSingleton<T>(T service) => add((i) => service);
}