examples/annotated_injection/car.cpp

/*
 * Copyright 2014 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "car.h"
#include "emergency_brake.h"
#include "main_brake.h"

class CarImpl : public Car {
private:
  Brake* mainBrake;
  Brake* emergencyBrake;

public:
  INJECT(CarImpl(ANNOTATED(MainBrake, Brake*) mainBrake, ANNOTATED(EmergencyBrake, Brake*) emergencyBrake))
      : mainBrake(mainBrake), emergencyBrake(emergencyBrake) {}

  void brake() override {
    try {
      mainBrake->activate();
    } catch (...) {
      // The main brake failed!
      emergencyBrake->activate();
    }
  }
};

fruit::Component<Car> getCarComponent() {
  return fruit::createComponent()
      .bind<Car, CarImpl>()
      .install(getMainBrakeComponent)
      .install(getEmergencyBrakeComponent);
}