今なら言える、 クラスメソッドとSwiftの歴史 〜開発現場の光と闇〜

大阪オフィス開設1周年勉強会の資料です

http://dev.classmethod.jp/news/mobileteam-inosaka-vol-3/

Transcript

1. 2017/04/28 ࠓͳΒݴ͑Δɺ ΫϥεϝιουͱSwiftͷྺ࢙ ʙ։ൃݱ৔ͷޫͱҋʙ େࡕΦϑΟε։ઃ1प೥ษڧձ
2. About Me
3. • ాத ޹໌ (Takaaki Tanaka) • Ϋϥεϝιουגࣜձࣾ • ϞόΠϧόοΫΤϯυ • @kongmingtrap • Swift / Objective-C / Scala / JavaScript … • GyazSquare / GitHub
6. ؓ࿩ٳ୊
7. Introduction
8. Introduction •Objective-CͰͷiOSͷ։ൃྺ͕໿3೥ •Swift͸ɺ΄΅ະܦݧ •Ұ͔ΒSwiftͰ࡞ΒΕͨϓϩδΣΫτʹܞ ΘΓ͔ͨͬͨ •Ver 1ͷࠒͷSwift͸҆ఆ͍ͯ͠ͳ͔ͬͨͨ ΊɺσϦόϦʔ༏ઌͰObjective-C͕࠾༻ ͞Ε͍ͯͨ
9. Introduction •Objective-CͰͷiOSͷ։ൃྺ͕໿3೥ •Swift͸ɺ΄΅ະܦݧ •Ұ͔ΒSwiftͰ࡞ΒΕͨϓϩδΣΫτʹܞ ΘΓ͔ͨͬͨ •Ver 1ͷࠒͷSwift͸҆ఆ͍ͯ͠ͳ͔ͬͨͨ ΊɺσϦόϦʔ༏ઌͰObjective-C͕࠾༻ ͞Ε͍ͯͨ
10. Introduction •Objective-CͰͷiOSͷ։ൃྺ͕໿3೥ •Swift͸ɺ΄΅ະܦݧ •Ұ͔ΒSwiftͰ࡞ΒΕͨϓϩδΣΫτʹܞ ΘΓ͔ͨͬͨ •Ver 1ͷࠒͷSwift͸҆ఆ͍ͯ͠ͳ͔ͬͨͨ ΊɺσϦόϦʔ༏ઌͰObjective-C͕࠾༻ ͞Ε͍ͯͨ Ϋϥεϝιου΁స৬
11. Classmethod with Swift
12. http://dev.classmethod.jp/smartphone/swift/
14. http://amzn.asia/dnXD7zd ਡ๚ ༔ل
15. Introduction •ೖࣾ౰ॳ(2015೥10݄)ͷ࣌఺Ͱ͸Swiftͷϓϩ δΣΫτ͸1ͭͷΈ •ͦͷϓϩδΣΫτΛ୲౰ͤͯ͞΋Βͬͨ •͍͔ͭ͘ͷػೳͷ௥ՃΛ୲౰ •લ೚ऀ͸όοΫΤϯυ୲౰ͱͳ͍ͬͯͨʢPlay / Scalaʣ
16. Agenda
17. Agenda
18. Agenda •Contact with Architecture •Battle with Swift version •Delivery is first priority •Battle with Swift version, second
19. Agenda •Contact with Architecture •Battle with Swift version •Delivery is first priority •Battle with Swift version, second
20. Contact with Architecture
21. https://www.objc.io/issues/13-architecture/viper/ Architecting iOS Apps with VIPER
22. https://www.slideshare.net/UsrNameu1/viper-arch VIPER ΞʔΩςΫνϟʹΑΔ iOS ΞϓϦͷઃܭ
23. Contact with Architecture •σϦόϦʔ༏ઌͷ։ൃܦݧ͕ଟ͔ͬͨͨΊɺ ϚογϒViewController΋ڐ༰͞Ε͕ͪͩͬͨ •ϨΠϠʔԽ͞ΕͨΫϦʔϯͳΞʔΩςΫνϟ͸ ࢐৽ͩͬͨ •ςετίʔυ͕ॆ࣮͍ͯͨ͠
24. Contact with Architecture •iOS 7΋αϙʔτ͍ͯͨͨ͠ΊɺҰ෦ͷϥΠϒϥ Ϧ͕CocoaPodsʹରԠ͍ͯ͠ͳ͔ͬͨ •CocoaPodsʹରԠ͍ͯ͠ͳ͔ͬͨϥΠϒϥϦ͸ Submoduleܦ༝ͰΠϯϙʔτ͍ͯͨ͠ •ϑΝΠϧ਺͕ଟ͍ҝɺΞʔΩςΫνϟΛཧղ͠ ͳ͍ͱɺमਖ਼ʹ͕͔͔࣌ؒͬͨ
25. • CargoBay • CorePlot • MBProgressHUD • UICKeyChainStore • JASidePanels • MagicalRecord • BlocksKit/UIKit • BlocksKit/MessageUI • Alamofire • SwiftyJSON • BrightFutures • OHHTTPStubs • Quick • Nimble
26. • CargoBay • CorePlot • MBProgressHUD • UICKeyChainStore • JASidePanels • MagicalRecord • BlocksKit/UIKit • BlocksKit/MessageUI • Alamofire • SwiftyJSON • BrightFutures • OHHTTPStubs • Quick • Nimble
27. http://dev.classmethod.jp/smartphone/swift-brightfutures-1/
28. Future / Promise Future ͸ฒྻʹ࣮ߦ͞ΕΔෳ਺ͷԋࢉΛऔΓѻ͏ͷʹศརͳ ํ๏Λఏڙ͢ΔɻͦΕ͸ޮ཰తͰϊϯϒϩοΩϯάͳํ๏ͩɻ େ·͔ͳߟ͑ํ͸γϯϓϧͳ΋ͷͰɺFuture ͸·ͩଘࡏ͠ͳ͍ ܭࢉ݁Ռʹର͢ΔϓϨʔεϗϧμͷΑ͏ͳ΋ͷͩɻ Ұൠత ʹɺFuture ͷ݁Ռ͸ฒߦʹܭࢉ͞ΕޙͰूܭ͢Δ͜ͱ͕Ͱ͖ Δɻ ͜ͷΑ͏ʹฒߦͳλεΫΛ߹੒͢Δ͜ͱͰɺΑΓ଎͘ɺ ඇಉظͰɺϊϯϒϩοΩϯάͳฒྻίʔυͱͳΔ͜ͱ͕ଟ͍ɻ http://docs.scala-lang.org/ja/overviews/core/futures.html
29. http://docs.scala-lang.org/ja/overviews/core/futures.html
30. open func postWaveformWithLead( _ lead: Lead, subjectiveSymptoms: [Checkup.SubjectiveSymptom]?, createDate: Date, saving: Bool, waveformData: Data) -> Future<Checkup, NSError> { let waveformUUID = UUID().uuidString return createLocalWaveformWithUuid( waveformUUID, lead: lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, waveformData: waveformData) .flatMap { [weak self] _ -> Future<JSON, NSError> in self?.uploadWaveformDatumWithLead( lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, saving: saving, waveformData: waveformData ) ?? Future(error: InteractorCancelError) } .flatMap { [weak self] json -> Future<Checkup, NSError> in self?.executeTaskAfterUploadWithJson(json, uuid: waveformUUID) ?? Future(error: InteractorCancelError) } }
31. open func postWaveformWithLead( _ lead: Lead, subjectiveSymptoms: [Checkup.SubjectiveSymptom]?, createDate: Date, saving: Bool, waveformData: Data) -> Future<Checkup, NSError> { let waveformUUID = UUID().uuidString return createLocalWaveformWithUuid( waveformUUID, lead: lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, waveformData: waveformData) .flatMap { [weak self] _ -> Future<JSON, NSError> in self?.uploadWaveformDatumWithLead( lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, saving: saving, waveformData: waveformData ) ?? Future(error: InteractorCancelError) } .flatMap { [weak self] json -> Future<Checkup, NSError> in self?.executeTaskAfterUploadWithJson(json, uuid: waveformUUID) ?? Future(error: InteractorCancelError) } }
32. open func postWaveformWithLead( _ lead: Lead, subjectiveSymptoms: [Checkup.SubjectiveSymptom]?, createDate: Date, saving: Bool, waveformData: Data) -> Future<Checkup, NSError> { let waveformUUID = UUID().uuidString return createLocalWaveformWithUuid( waveformUUID, lead: lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, waveformData: waveformData) .flatMap { [weak self] _ -> Future<JSON, NSError> in self?.uploadWaveformDatumWithLead( lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, saving: saving, waveformData: waveformData ) ?? Future(error: InteractorCancelError) } .flatMap { [weak self] json -> Future<Checkup, NSError> in self?.executeTaskAfterUploadWithJson(json, uuid: waveformUUID) ?? Future(error: InteractorCancelError) } }
33. open func postWaveformWithLead( _ lead: Lead, subjectiveSymptoms: [Checkup.SubjectiveSymptom]?, createDate: Date, saving: Bool, waveformData: Data) -> Future<Checkup, NSError> { let waveformUUID = UUID().uuidString return createLocalWaveformWithUuid( waveformUUID, lead: lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, waveformData: waveformData) .flatMap { [weak self] _ -> Future<JSON, NSError> in self?.uploadWaveformDatumWithLead( lead, subjectiveSymptoms: subjectiveSymptoms, createDate: createDate, saving: saving, waveformData: waveformData ) ?? Future(error: InteractorCancelError) } .flatMap { [weak self] json -> Future<Checkup, NSError> in self?.executeTaskAfterUploadWithJson(json, uuid: waveformUUID) ?? Future(error: InteractorCancelError) } }
34. ͳΜͰ#PMUT͡Όͳ͍ΜͰ͢ ͔ʁ
35. ͳΜͰ#PMUT͡Όͳ͍ΜͰ͢ ͔ʁ ඇಉظॲཧ͸'VUVSFͰॻ͚ ͹ඒ͍͠
36. ΞοϋΠ ඇಉظॲཧ͸'VUVSFͰॻ͚ ͹ඒ͍͠
37. http://dev.classmethod.jp/server-side/scala-concurrent-future/
38. http://dev.classmethod.jp/server-side/scala-learn-flatmap/
39. ͳΜͰ3Y4XJGU͡Όͳ͍Μ Ͱ͔͢ʁ
40. ͳΜͰ3Y4XJGU͡Όͳ͍Μ Ͱ͔͢ʁ ඇಉظॲཧ͸'VUVSFͰॻ͚ ͹ඒ͍͠
41. ͳΜͰ3Y4XJGU͡Όͳ͍Μ Ͱ͔͢ʁ ඇಉظॲཧ͸'VUVSFͰॻ͚ ͹ඒ͍͠
42. Contact with Architecture •ར༻͢ΔϥΠϒϥϦ͸νʔϜϝϯόʔͱϨ Ϗϡʔ͢Δ͜ͱ͸ඞਢ •ϚογϒViewControllerʹͳΒͳ͍Α͏ɺΞʔΩ ςΫνϟͷಋೖ͸ۃྗߦ͏ •ͲͷΞʔΩςΫνϟΛಋೖ͢Δ͔͸νʔϜͱσ ϦόϦʔͱ૬ஊ
43. Battle with Swift version
44. Swift 2.1 • Xcode 7 + iOS 9 SDKͰϏϧυ͕Մೳ • Swift 2.x ܥͷAPIσβΠϯ • try / catch͕௥Ճ • Ұ෦ͷϓϩύςΟ͕Optionalʹͳͬͨ(SDK) • Dynamic LibraryରԠ(Xcode 7)
45. Migration • Xcode 7.1Ͱىಈͨ͠ࡍɺաڈͷSwift όʔ δϣϯͷ৔߹͸Convertը໘͕ىಈ͢Δ • ʮEdit > Convert > To Current Swift Syntax.ʯ Ͱ΋࣮ߦՄೳ
47. Migration • Xcode 7.1Ͱىಈͨ͠ࡍɺաڈͷSwift όʔ δϣϯͷ৔߹͸Convertը໘͕ىಈ͢Δ • ʮEdit > Convert > To Current Swift Syntax.ʯ Ͱ΋࣮ߦՄೳ • Swift 1.2 → Swift 2.1ͷ࣌͸࢖͍΋ͷʹͳΒ ͳ͔ͬͨ ← New!
48. ஍ಓͳमਖ਼࡞ۀ • BrightFuturesͷFutureͷܕ͕มߋʹͳͬͨ ͷͰमਖ਼
49. ஍ಓͳमਖ਼࡞ۀ • Resultͷܕ͕มߋʹͳͬͨͷͰमਖ਼
50. ஍ಓͳमਖ਼࡞ۀ • Dynamic LibraryରԠ • iOS 7Λαϙʔτ͔Βআ֎ͨ͠
51. ஍ಓͳमਖ਼࡞ۀ • ϓϩύςΟͷOptionalରԠ
52. ஍ಓͳमਖ਼࡞ۀ • ExceptionͷthrowରԠ
53. ஍ಓͳमਖ਼࡞ۀ • map → forEachରԠ
54. iOS 9ରԠʢATSରԠʣ • S3ʹஔ͍ͨϑΝΠϧ͕औಘͰ͖ͳ͘ͳͬͨ • Preparing Your Apps for iOS 9Λࢀߟʹ Info.plistΛमਖ਼
55. Result
56. Battle with Swift version • iOS 7ͷαϙʔτͷ༗ແ͕ͦͷޙͷ޻਺ʹ େ͖ͳӨڹΛ༩͑ͨ • Τϥʔɾܯࠂͷ਺͕ଟͯ͘ରԠʹ͕࣌ؒ ͔͔ͬͨ • Ϗϧυͷ଎౓্͕͕ͬͨʢVer 1.2 : 12min → Ver 2.1 : 3minʣ
57. Delivery is first priority
58. Delivery is first priority
60. Battle with Swift version, second
61. Swift 3.0 • NS Prefix͔Βͷ୤٫ • ৽ͨͳΔAPIσβΠϯΨΠυϥΠϯ
62. Swift 3.0 • NS Prefix͔Βͷ୤٫ → Ұ෦࢒Γ·ͨ͠ ʢNSNumberʣ • ৽ͨͳΔAPIσβΠϯΨΠυϥΠϯ → طଘ ͷϥΠϒϥϦͷϝιου໊มΘΓ͗͢ • ABI҆ఆԽ → Swift 4·Ͱ଴ͬͯͶ
64. ʊਓਓਓਓਓਓਓਓਓʊ
    ʼɹࢼ͞ΕΔ஧੣৺ɹʻ
    ʉ:?:?:?:?:?:?:?:ʉ
65. Swift 2.3 • Xcode 8 + iOS 10 SDKͰϏϧυ͕Մೳ • Swift 2.x ܥͷAPIσβΠϯ • ͱΓ͋͑ͣٸ͍ͰiOS 10ͰϏϧυ͢Δඞཁ ͕͋Δ৔߹
66. Swift 2.3 9DPEF
    3FMFBTF
    /PUFT • Xcode 8.2 ͕࠷ޙͷαϙʔτʹͳΔͨΊɺ Swift 3.0΁ͷରԠ͸ඞਢ
67. Migration to Swift 3.0
68. Swift 2.2΁ͷҠߦ • Xcode 7.2 + Swift 2.1 ͷ։ൃ؀ڥΛXcode 8.2 Ͱىಈͨ͠ࡍɺʮEdit > Convert > To Current Swift Syntax.ʯͷର৅ʹTarget͕දࣔ ͞Εͳ͔ͬͨ • ͱΓ͋͑ͣɺXcode 7.3ͰSwift 2.1͔ΒSwift 2.2΁Ҡߦͨ͠
69. Migration • Xcode 8.2Ͱىಈͨ͠ࡍɺաڈͷSwift όʔδϣ ϯͷ৔߹͸Convertը໘͕ىಈ͢Δ • ʮEdit > Convert > To Current Swift Syntax.ʯͰ΋ ࣮ߦՄೳ • Swift 1.2 → Swift 2.1ͷ࣌͸࢖͍΋ͷʹͳΒͳ ͔ͬͨ
72. ʊਓਓਓਓਓਓਓਓਓʊ
    ʼɹ$POWFSU
    'BJMFEɹʻ
    ʉ:?:?:?:?:?:?:?:?:?ʉ
73. Migration • Xcode 8.2Ͱىಈͨ͠ࡍɺաڈͷSwift όʔδϣ ϯͷ৔߹͸Convertը໘͕ىಈ͢Δ • ʮEdit > Convert > To Current Swift Syntax.ʯͰ΋ ࣮ߦՄೳ • Swift 1.2 → Swift 2.1ͷ࣌͸࢖͍΋ͷʹͳΒͳ ͔ͬͨ • Swift 2.2 → Swift 3.0ͷ࣌΋࢖͍΋ͷʹͳΒͳ ͔ͬͨ ← New!
74. ͦΕͰ΋ແ͍ΑΓ͸Ϛγ • UIKitͷmethodͷม׵ • Enumͷupper case → lower caseม׵ • NSPrefixͷϥΠϒϥϦͷม׵
75. ͻͨ͢Β஍ಓͳ࡞ۀ • CurryԽͨ͠ϝιουͷमਖ਼ public static func log(level level: Level)(@autoclosure name: () -> String) (@autoclosure message: () -> String) -> String { if level.rawValue <= Logger.currentLevel.rawValue { let full = "\(level.description): \(name()) - \(message())" print(full) return full } return "" }
76. ͻͨ͢Β஍ಓͳ࡞ۀ • CurryԽͨ͠ϝιουͷमਖ਼ public static func log(level: Level) -> ((@escaping () -> String) -> ((@escaping () -> String) -> String)) { return { (name: @escaping (() -> String)) in return { (message: @escaping (() -> String)) in if level.rawValue <= Logger.currentLevel.rawValue { let full = "\(level.description): \(name())) - \(message())" print(full) return full } return "" } } }
77. ͻͨ͢Β஍ಓͳ࡞ۀ • closureʹ@escapingͷ௥Ճ
78. ͻͨ͢Β஍ಓͳ࡞ۀ • Ҡߦπʔϧ͕ม׵ͨ͠Օॴͷमਖ਼ • Ωϟετ → Ωϟετ → Ωϟετ Date as NSDate as Date String as NSString as String
79. ͻͨ͢Β஍ಓͳ࡞ۀ • Unit Testͷमਖ਼
80. Result
81. Result
82. files additions deletions Ver 2.1 147 1268 1130 Ver 3.0 247 4314 4372 Pull Request Diff
83. Battle with Swift version, second • Ͱ͖Ε͹ೋ౓ͱ΍Γͨ͘ͳ͍ • ίϯϑϦΫτղফͷͨΊɺݽಠͳ࡞ۀͱ ͳΔ • ஧੣৺Λࢼ͞ΕΔ
84. Recap
85. Recap •৽نϓϩδΣΫτ͸શͯSwiftʹ •ΞʔΩςΫνϟʹ͍ͭͯ૬ஊͰ͖Δ౔৕ ͕ܗ੒͞Εͨ •ΞʔϦʔΞμϓλʔͱͯ͠ɺ͖᪴ͳ͕Β΋ ϊ΢ϋ΢ΛͨΊ͍͚ͯΔ
86. Recap •Swiftͷݴޠ࢓༷ͷมԽʹ൱Ԡͳ͠ʹରԠ ΛഭΒΕΔ •બ୒ͨ͠ΞʔΩςΫνϟʹΑͬͯ͸ҭ੒ ίετ͕ൃੜ͢Δ •σϦόϦʔΛ༏ઌ͠ͳ͚Ε͹ͳΒͳ͍ঢ় گ͸ඞͣൃੜ͢Δ
88. Thank you!
89. One more thing…
90. ʲ େࡕΦϑΟε։ઃ1प೥!! ʳ Ϋϥεϝιουͷ։ൃΛ஌Δʂશ7ճษڧ http://dev.classmethod.jp/news/mobileteam-inosaka/
91. ʲ େࡕΦϑΟε։ઃ1प೥!! ʳ Ϋϥεϝιουͷ։ൃΛ஌Δʂશ7ճษڧ http://dev.classmethod.jp/news/mobileteam-inosaka/
92. We're hiring!!
93. https://classmethod.jp/recruit/
94. AWSࣄۀ෦ AWSΤϯδχΞʢAWSγεςϜ؀ڥͷߏஙࢧԉʣ AWSιϦϡʔγϣϯΞʔΩςΫτʢAWSγεςϜ؀ڥ ίϯαϧɾߏஙɾӡ༻ࢧԉʣ AWSΦϖϨʔγϣϯίϯαϧλϯτʢAWSγεςϜ؀ڥͷӡ༻ࣗಈԽࢧԉʣ AWSαʔϏεσϕϩούʔʢAWSΛ׆༻ͨ͠αʔϏε։ൃʣ
 ϞόΠϧΞϓϦαʔϏε෦ iOS / AndroidΞϓϦ։ൃΤϯδχΞ ― ౦ژ / ࡳຈ / େࡕ ϞόΠϧόοΫΤϯυΤϯδχΞ ― ౦ژ / ࡳຈ / େࡕ DevOpsΤϯδχΞ ― ౦ژ / ࡳຈ / େࡕ ϓϩδΣΫτϚωʔδϟʔʢϞόΠϧΞϓϦʣ ― ౦ژ / େࡕ ݱࡏืूதͷ৬छ https://classmethod.jp/recruit/jobs/