56 lines
1.3 KiB
Dart
56 lines
1.3 KiB
Dart
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import 'package:angel_container/angel_container.dart';
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import 'package:angel_container/mirrors.dart';
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void main() {
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// Create a container instance.
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var container = new Container(MirrorsReflector());
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// Register a singleton.
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container.registerSingleton<Engine>(Engine(40));
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// Register a factory that creates a truck.
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container.registerFactory<Truck>((container) {
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return _TruckImpl(container.make<Engine>());
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});
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// Use `make` to create an instance.
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var truck = container.make<Truck>();
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// Should print: 'Vroom! I have 40 horsepower in my engine.'
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truck.drive();
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// We can make a child container with its own factory.
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var childContainer = container.createChild();
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childContainer.registerFactory<Truck>((container) {
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return _TruckImpl(Engine(5666));
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});
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// Make a truck with 5666 HP.
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childContainer.make<Truck>().drive();
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// However, calling `make<Engine>` will return the Engine singleton we created above.
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print(childContainer.make<Engine>().horsePower);
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}
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abstract class Truck {
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void drive();
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}
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class Engine {
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final int horsePower;
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Engine(this.horsePower);
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}
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class _TruckImpl implements Truck {
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final Engine engine;
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_TruckImpl(this.engine);
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@override
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void drive() {
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print('Vroom! I have ${engine.horsePower} horsepower in my engine.');
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}
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}
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