だったら、俺が代わりにやってやる / Swift Zoomin' Challenge

Swift Zoomin' の Fat View Controllerを倒せ！ 報告会の発表スライドです。

Transcript

1. ͩͬͨΒɺԶ͕
   ୅ΘΓʹ΍ͬͯ΍Δʂ 
   4XJGU
   ;PPNJO
   νϟϨϯδ
   ʙ'BU
   7JFX
   $POUSPMMFSΛ౗ͤʂʙ
   ใࠂձ
2. "CPVU
   .F w ͻΖΜʢҰٶ
   ߒڭʣ
   w 5XJUUFS
   
   (JU)VC
   
   2JJUB
   
   4MJEF4IBSF
   4QFBLFS
   %FDL
   
   
   
   
   ˠ
   IJSPOZUJD
   w ಙౡࡏॅ
   w ීஈ͸'BU
   7JFX
   $POUSPMMFS ͱઓΘͣʹɺͲ͏෇͖߹ͬ ͍͔ͯ͘Λߟ͍͑ͯ·͢
3. Ͱ͖͕͋ͬͨ΋ͷ w IUUQTHJUIVCDPNIJSPOZUJDSFWFSTJJPT
   w ΞʔΩςΫνϟύλʔϯɿ
   .77.
   
   3FEVY
   w ࢖༻ϑϨʔϜϫʔΫɿ
   6*,JUɺ$PNCJOF
4. ϦϑΝΫλϦϯάΛ
   ͲͷΑ͏ʹਐΊ͍͔ͯͬͨ
5. νϟϨϯδ౰೔ ͷࣗ෼ͷϝϞ w σΟεΫຕ਺Χ΢ϯτ
   countDisks(of:)
   w σΟεΫຕ਺ͷଟ͍ํΛฦ͢
   sideWithMoreDisks()
   w σΟεΫΛஔ͚Δ͔Ͳ͏͔ௐ΂Δ
   canPlaceDisk(_:atX:y:)
   w σΟεΫΛஔ͚Δ৔ॴΛฦ͢
   validMoves(for:)
   w σΟεΫΛஔ͘
   placeDisk(_:atX:y:animated:completion:)
6. νϟϨϯδ౰೔ʙཌ೔ #PBSE7JFX 7JFX
   $POUSPMMFS ˣ͜ͷ࣌఺ͷϘʔυ #PBSE ϓϩτίϧ
   ʢ˞ҙຯ͸ͳ͔ͬͨʣ 3FWFSTJ
   -PHJDT FYUFOTJPO ˞
   placeDisk()
   ͸Ξχϝʔ γϣϯͷΩϟϯηϧॲཧΛ
   ViewController
   ͕͍࣋ͬͯ ͨΓͯ͠ɺ͍ͼͭͳঢ়ଶ IUUQTHJUIVCDPNIJSPOZUJDSFWFSTJJPTQVMM
7. ಘΒΕͨ΋ͷ w ʮͳΜ͔΍ͬͨͬͨʯͱ͍͏ຬ଍ײ
8. Ϧόʔγ൫ΛϞσϧͱϏϡʔʹ෼཭ ͷࣗ෼ͷϝϞ BoardView
   ΋ ͍࣋ͬͯΔػೳ 3FWFSTJ
   -PHJDT ͷػೳ struct CellChange: Hashable { var x: Int var y: Int var disk: Disk? } struct Board { ... mutating func placeDisk(_ disk: Disk, atX x: Int, y: Int) throws -> [CellChange] { ... } } IUUQTHJUIVCDPNIJSPOZUJDSFWFSTJJPTQVMM
9. ಘΒΕͨ΋ͷ w Ϙʔυͷঢ়ଶͱը໘Λ੾Γ཭ͤͨ
   w Ϧόʔγͷϧʔϧʹجͮ͘มߋ͔͠ߦ͑ͳ͍҆શ ੑʢྫ͑͹ͻͬ͘ΓฦΒͳ͍ͱ͜ΖʹσΟεΫΛ ஔ͘͜ͱ͸Ͱ͖ͳ͍ʣ
   w 3FWFSTJ
   -PHJDTͷςετίʔυ
10. ήʔϜਐߦΛ෼཭͍͕ͨ͠ʜ w ͳΜͱͳ͘.77.
    w ϘʔυҎ֎ͷ6*ͷଘࡏ Λ๨Ε͍ͯΔ
    w ਐߦͷྲྀΕ͕੔ཧͰ͖ͯ ͍ͳ͍
    w Ξχϝʔγϣϯ΍Ξϥʔ τ͸7JFX૚ͷ੹຿ͱߟ ͍͑ͯΔ ͷࣗ෼ͷϝϞ
11. ήʔϜਐߦͷྲྀΕΛ੔ཧ ͷࣗ෼ͷϝϞ
12. ը໘ 7JFX ͷೖग़ྗ΋੔ཧ ͷࣗ෼ͷϝϞ
13. ήʔϜͷہ໘͕ঢ়ଶભҠ͢Δͱߟ͑ͨ ͷࣗ෼ͷϝϞ
14. ঢ়ଶભҠͱ͍͑͹ʜ3FEVY ͷࣗ෼ͷϝϞ .PEFM 7JFX 7JFX
    .PEFM 3FEVY
15. Ϟσϧͷ෦෼Λ3FEVY෩ʹ࣮૷ w ΊͬͪΌࢼߦࡨޡͨ͠
     3FEVY͸஌ࣝͱͯ͠஌͍͚ͬͯͨͩͩͬͨʢ'MVY͸ܦݧ͋Γʣ
16. ϑΣʔζͱ͍͏ಠࣗ֓೦ public protocol Reducer { /// ΞΫγϣϯʹԠͯ͡ঢ়ଶΛมߋ͠·͢ɻ /// - Parameters: /// - state: มߋલͷঢ়ଶͰ͢ɻ /// - action: ঢ়ଶมߋΛཁٻ͢ΔΞΫγϣϯͰ͢ɻ /// - Returns: มߋޙͷঢ়ଶΛฦ͠·͢ɻ static func reduce(state: State, action: Action) -> State } public protocol Phase: Reducer, Hashable, CustomStringConvertible { /// ϑΣʔζछผͰ͢ɻ var kind: PhaseKind { get } /// ผͷϑΣʔζ͔Β͜ͷϑΣʔζʹભҠ͢Δͱ͖ʹݺ͹Ε·͢ɻ /// ඞཁʹԠͯ͡αϯΫΛฦ͢͜ͱ͕Ͱ͖·͢ɻ /// - Parameters: /// - previousPhase: ҎલͷϑΣʔζ͕౉͞Ε·͢ɻ static func onEnter(previousPhase: AnyPhase) -> Thunk? /// ͜ͷϑΣʔζ͔ΒผͷϑΣʔζʹભҠ͢Δͱ͖ʹݺ͹Ε·͢ɻ /// ඞཁʹԠͯ͡αϯΫΛฦ͢͜ͱ͕Ͱ͖·͢ɻ /// - Parameters: /// - state: ݱࡏͷঢ়ଶͰ͢ɻ /// - nextPhase: ࣍ͷϑΣʔζ͕౉͞Ε·͢ɻ static func onExit(nextPhase: AnyPhase) -> Thunk? } ͷࣗ෼ͷϝϞ
17. Ϟσϧͷ෦෼Λ3FEVY෩ʹ࣮૷ w ΊͬͪΌࢼߦࡨޡͨ͠
     3FEVY͸஌ࣝͱͯ͠஌͍͚ͬͯͨͩͩͬͨʢ'MVY͸ܦݧ͋Γʣ
    w ຊՈ3FEVYͷαΠτͱɺؔ࿈ٕज़Λݟ௚ͨ͠Γ
    ‣ IUUQTSFEVYKTPSH
    ‣ IUUQTHJUIVCDPNSFEVYKTSFEVYUIVOL
    ‣ IUUQTHJUIVCDPNSFEVYMPPQSFEVYMPPQ
    w ΊͬͪΌษڧʹͳΓ·ͨ͠ɹʜ͕͋·Γग़དྷʹࣗ৴͸ͳ͍
18. Ϟσϧͷ෦෼ͷ࣮૷͕ͻͱͱ͓ΓऴΘΓʜ ΄Μͷগ͠ςετίʔυΛॻ͍ͯಈ࡞Λ֬ೝ ࢒Γͷςετ͸͍ͬͨΜอཹͯ͠ɺ7JFX
    .PEFMͷ࣮૷ʹ IUUQTHJUIVCDPNIJSPOZUJDSFWFSTJJPTQVMM
19. 7JFX.PEFMΛ࣮૷ɺͦͯ͠ʜ 7JFX$POUSPMMFSͱ΋઀ଓ IUUQTHJUIVCDPNIJSPOZUJDSFWFSTJJPTQVMM
20. ࣮ࡍʹಈ͔ͤͯ༡΂Δ
21. ಾػೳͷര஀ w ஔ͚ͳ͍ͱ͜Ζʹஔ͜͏ͱ͢Δͱ
    w ίϯϐϡʔλʔ͕উखʹߟ͑ͯஔ͍ ͯ͘ΕΔ
    w ʮͩͬͨΒɺ
    ɹԶ͕୅ΘΓʹ΍ͬͯ΍Δʂʯػೳ ʢ˞όάʣ
22. Ϟσϧ૚ͷςετΛॆ࣮ͤ͞Δ w ঢ়ଶભҠਤΛॻ ͖ͳ͓ͨ͠
    w ͜ΕΛݟͳ͕Β ςετέʔεΛ ࡞ͬͨ ʙͷࣗ෼ͷϝϞ
23. ʮͩͬͨΒɺԶ͕୅ΘΓʹ΍ͬͯ΍Δʯػೳ
24. .PEFMͱ7JFX
    .PEFMͱͷࠩ w .PEFMʹ͸7JFXͷߏ଄Λҙࣝͨ͠4UBUF͸͍࣋ͨͤͯͳ ͍ʢྫɿλʔϯදࣔ΍উഊදࣔʹ
    %JTL7JFXΛ࢖͏ͳͲʣ
    w 7JFX
    .PEFM͸7JFXͷߏ଄Λڧ͘ҙࣝͯ͠ɺͳΔ΂ͦ͘ͷ ··όΠϯσΟϯάͰ͖ΔΑ͏ʹσʔλΛՃ޻
    w 7JFXͱ7JFX
    .PEFMΛ෼͚Δҙຯ͸ʁ
    ˠ
    ςετ͕ॻ͚Δ 7JFX
    .PEFMͷςετΛॻ͍͍ͯͳ͔ͬͨ
25. ָ͍͠(8Λ
    ա͢͜͝ͱ͕Ͱ͖·ͨ͠
26. ͝ਗ਼ௌ͋Γ͕ͱ͏͟͝·ͨ͠