Dependency Resolver based on DIKit

DependencyResolver.swift

import Foundation

class HogeViewModel {

    let d1: String
    let d2: String
    let d3: String

    init(d1: String, d2: String, d3: String) {
        self.d1 = d1
        self.d2 = d2
        self.d3 = d3
    }
}

protocol DependencyResolvable {
    func provideD1() -> String
    func provideD2() -> String
}

extension DependencyResolvable {
    func resolveD1() -> String {
        return provideD1()
    }

    func resolveD2() -> String {
        return provideD2()
    }

    func resolveHogeViewModel(dynamicDependency: String) -> HogeViewModel {
        return HogeViewModel(d1: resolveD1(), d2: resolveD2(), d3: dynamicDependency)
    }
}

class DependencyResolver: DependencyResolvable {
    func provideD1() -> String {
        return "This is d1"
    }

    func provideD2() -> String {
        return "This is d2"
    }
}

let resolver: DependencyResolvable = DependencyResolver()
let hoge = resolver.resolveHogeViewModel(dynamicDependency: "This is d3")
print(hoge.d1, hoge.d2, hoge.d3)