DIKitで人間がクラス間の依存関係解決するのを終わらせる

potatotips #64
https://potatotips.connpass.com/event/139008/

ブログ版
https://tech.gamewith.co.jp/entry/2019/09/04/100000

Transcript

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8. %*Ͱ͖ͳ͍ class ViewController: UIViewController { let viewModel = ViewModel(model: Model()) ੜ੒ॲཧ͕௚઀ॻ͔Ε͍ͯΔ
9. ݟ௨͕͠ѱ͍ class ViewController: UIViewController { let viewModel = ViewModel(model: Model()) func showMessage() { ͨͩͷੜ੒ॲཧ ͜ͷΫϥεຊདྷͷػೳ
10. ਓ͕ؒ؅ཧ͢Δඞཁ class AppResolverImpl { func resolveViewController() -> ViewController { return ViewController(viewModel: ViewModel(model: Model())) } func resolveAViewController() -> AViewController func resolveBViewController() -> BViewController func resolveCViewController() -> CViewController ɾ ɾ ɾ ίʔυϨϏϡʔͳͲ͕ඞཁ
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13. %*,JU EJLJUHFO ͰࣗಈԽ
14. ཉ͍͠΋ͷΛએݴ͢Δ͚ͩ class ViewController: UIViewController, Injectable { struct Dependency { let aViewController: AViewController let bViewController: BViewController let cViewController: CViewController } class AViewController: UIViewController, Injectable { struct Dependency { let viewModel: AViewModel } class AViewModel: Injectable { struct Dependency { let model: AModel } ɾ ɾ ɾ
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    9DPEFΛ࣮ߦ // // Resolver.swift // Generated by dikitgen. // import DIKit import UIKit extension AppResolver { func resolveAModel() -> AModel { return provideAModel() } func resolveAViewController() -> AViewController { let aViewModel = resolveAViewModel() return AViewController(dependency: .init(viewModel: aViewModel)) } func resolveAViewModel() -> AViewModel { let aModel = resolveAModel() return AViewModel(dependency: .init(model: aModel)) } func resolveBModel() -> BModel { return provideBModel() } func resolveBViewController() -> BViewController { let bViewModel = resolveBViewModel() return BViewController(dependency: .init(viewModel: bViewModel)) } func resolveBViewModel() -> BViewModel { let bModel = resolveBModel() return BViewModel(dependency: .init(model: bModel)) } func resolveCModel() -> CModel { return provideCModel() } func resolveCViewController() -> CViewController { let cViewModel = resolveCViewModel() return CViewController(dependency: .init(viewModel: cViewModel)) } func resolveCViewModel() -> CViewModel { let cModel = resolveCModel() return CViewModel(dependency: .init(model: cModel)) } func resolveViewController() -> ViewController { let aViewController = resolveAViewController() let bViewController = resolveBViewController() let cViewController = resolveCViewController() return ViewController(dependency: .init(aViewController: aViewController, bViewController: bViewController, cViewController: cViewController)) } } func resolveCViewController() -> CViewController { let cViewModel = resolveCViewModel() return CViewController(dependency: .init(viewMode cViewModel)) } func resolveCViewModel() -> CViewModel { let cModel = resolveCModel() return CViewModel(dependency: .init(model: cModel } func resolveViewController() -> ViewController { let aViewController = resolveAViewController() let bViewController = resolveBViewController() let cViewController = resolveCViewController() return ViewController(dependency: .init(aViewCont aViewController, bViewController: bViewController, cViewC cViewController)) } }
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