tfcporciuncula

@Component(modules = [ApplicationModule::class, ...])
interface ApplicationComponent {

  fun plus(bookModule: BookModule): BookComponent
  
  ...
}

tfcporciuncula

private val presenter =
  MyApplication
    .component
    .plus(BookModule(this))
    .presenter

tfcporciuncula

@Subcomponent(modules = [BookModule::class])
interface BookComponent {
    // let's assume BookPresenter has an @Inject-annotated constructor
    val presenter: BookPresenter
}

@Module
class BookModule(@get:Provides val bookView: BookView)

tfcporciuncula

@Subcomponent
interface BookComponent {

  @Subcomponent.Builder
  interface Builder {
    @BindsInstance fun bookView(bookView: BookView): Builder
    fun build(): BookComponent
  }

  val presenter: BookPresenter

tfcporciuncula

@Subcomponent
interface BookComponent {

  @Subcomponent.Factory
  interface Factory {
    fun create(@BindsInstance bookView: BookView): BookComponent
  }

  val presenter: BookPresenter
}

tfcporciuncula

@Component(modules = [ApplicationModule::class, ...])
interface ApplicationComponent {
  ...
}

@Module
class ApplicationModule(private val applicationContext: Context) {
  @Provides fun provideApplicationContext() = applicationContext
}

tfcporciuncula

@Module
class ApplicationModule(@get:Provides val applicationContext: Context)

tfcporciuncula

DaggerApplicationComponent
  .builder()
  .applicationContext(applicationContext)
  .build()

tfcporciuncula

@Module
object BookPresenterModule {

  @Provides @JvmStatic
  fun provideBookPresenter(bookPresenter: BookPresenterImpl): BookPresenter = bookPresenter
}

tfcporciuncula

@Module
abstract class BookPresenterModule {

  @Binds abstract fun bindBookPresenter(bookPresenter: BookPresenterImpl): BookPresenter
}