ManualDiExplicitDepsNoDelegation.kts

class Context

interface Module1 {

    val dep1: () -> Int
    val dep2: String

    data class Deps(
        val context: Context,
    )

    private class Impl(val deps: () -> Deps) : Module1 {

        override val dep1: () -> Int = { 42 }
        override val dep2: String
            get() = "M1Dep2 Impl " + deps().context
    }

    companion object : (() -> Deps) -> Module1 by { Impl(it) }
}

interface Module2 {

    val dep3: String

    data class Deps(
        val dep1: () -> Int,
        val context: Context,
    )

    private class Impl(val deps: () -> Deps) : Module2 {

        override val dep3: String
            get() = deps().run {
                "M2" + dep1() + context + "m2"
            }
    }

    companion object : (() -> Deps) -> Module2 by { Impl(it) }
}

interface FeatureModule1 {

    val f1dep: String

    data class Deps(
        val dep2: String,
        val dep3: String,
    )

    class Holder(deps: () -> Deps) : () -> FeatureModule1 by { Impl(deps) }

    companion object : (() -> Deps) -> FeatureModule1 by { Impl(it) } {

        private class Impl(val deps: () -> Deps) : FeatureModule1 {

            override val f1dep: String
                get() = deps().run {
                    "F1$dep2$dep3"
                }
        }
    }

}

interface FeatureModule2 {

    val f2dep: String

    data class Deps(
        val dep2: String,
        val dep3: String,
    )

    class Holder(deps: () -> Deps) : () -> FeatureModule2 by { Impl(deps) }

    companion object : (() -> Deps) -> FeatureModule2 by { Impl(it) } {

        private class Impl(val deps: () -> Deps) : FeatureModule2 {

            override val f2dep: String
                get() = deps().run {
                    "F2$dep2$dep3"
                }
        }
    }
}

class AppComponent constructor(
    val context: Context,
) {
    val module1 = Module1 { Module1.Deps(context = context) }
    val module2 = Module2 {
        Module2.Deps(
            dep1 = module1.dep1,
            context = context
        )
    }
    val featureModule1Holder = FeatureModule1.Holder {
        FeatureModule1.Deps(
            dep2 = module1.dep2,
            dep3 = module2.dep3
        )
    }
    val featureModule2Holder = FeatureModule2.Holder {
        FeatureModule2.Deps(
            dep2 = module1.dep2,
            dep3 = module2.dep3
        )
    }
}

val c = AppComponent(context = Context())
println("Start")
println(c.module1.dep1())
println(c.module1.dep2)
println(c.module2.dep3)
println(c.featureModule1Holder().f1dep)
println(c.featureModule2Holder().f2dep)
println("End")