Upgrade to Pro — share decks privately, control downloads, hide ads and more …

詳解Objective-C

hirose yudai
September 17, 2017
1
3.4k

 詳解Objective-C

iOSDC 2017でお話しする内容です

https://iosdc.jp/2017/node/1364

Objective-Cについて熱く語ります

hirose yudai

September 17, 2017
Tweet

More Decks by hirose yudai

See All by hirose yudai
Write swift macros
bannzai
1
240
Figma => SwiftUI
bannzai
0
160
爆速でクソリプを送る技術
bannzai
1
38
Tsukimi
bannzai
0
55
iOSDC_Reject_Conference_Day1
bannzai
0
220
iOSDC-2019.pdf
bannzai
0
1.2k
ios-de-kanpai
bannzai
0
49
waiwai-swiftc.pdf
bannzai
0
120
iosdcrc-conv.pdf
bannzai
4
570

Featured

See All Featured
Making the Leap to Tech Lead
cromwellryan
133
9k
Making Projects Easy
brettharned
116
6k
A Tale of Four Properties
chriscoyier
157
23k
4 Signs Your Business is Dying
shpigford
182
22k
Building Better People: How to give real-time feedback that sticks.
wjessup
366
19k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
33
2.7k
How to train your dragon (web standard)
notwaldorf
89
5.8k
Become a Pro
speakerdeck
PRO
26
5.1k
Fashionably flexible responsive web design (full day workshop)
malarkey
406
66k
Designing Experiences People Love
moore
139
23k
The Pragmatic Product Professional
lauravandoore
32
6.4k
Designing for Performance
lara
604
68k

Transcript

  1. Objective-C J04%$
 IUUQTJPTEDKQOPEF ৄղ

  2. ࣗݾ঺հ ໊લኍ੉༤େ ৬छJ04&OHJOFFS
 ໊͋ͩ4UBSޤ৯ 4XJGU੡ͷϥΠϒϥϦΛ͍͔ͭ͘࡞ͬͯެ։ͯ͠·͢
 
 ελʔ͍ͩ͘͞ CBOO[BJ ZIJSPTF

  3. ࠓ೔͓࿩͢͠Δ͜ͱɾ͍ͨ͜͠ͱ IUUQTJPTEDKQOPEF

  4. ࠓ೔ͷλʔήοτ૚ IUUQTJPTEDKQOPEF

  5. ࠓ೔ͷλʔήοτ૚ IUUQTJPTEDKQOPEF ओʹ4XJGUͰJ04։ൃ͍ͯ͠Δํ

  6. ࠓ೔ͷλʔήοτ૚ IUUQTJPTEDKQOPEF 0CKFDUJWF$͕࿀͘͠ͳͬͯདྷͨํ

  7. ࠓ೔ͷλʔήοτ૚ IUUQTJPTEDKQOPEF 0CKFDUJWF$ͷ͜ͱΛ͋·Γ஌Βͳ͍ํ޲͚

  8. ࠓ೔ͷλʔήοτ૚ IUUQTJPTEDKQOPEF ΋ͪΖΜͦ͏͡Όͳ͍ํ΋ָ͠ΜͰ͍ͩ͘͞

  9. ͲͪΒ͔ͱ͍͏ͱද໘తͳ͜ͱͷ͓࿩ IUUQTJPTEDKQOPEF جຊతͳػೳ͔ΒԠ༻·Ͱ
 ࣌ؒͷڐ͢ݶΓ͓఻͑͠·͢

  10. ͜ͷൃදͷ0CKFDUJWF$ J04։ൃͳͷͰ'PVOEBUJPOΛ࢖༻͢Δ͜ͱલఏͰ࿩͠·͢ "3$/PU.3$ 1VSF0CKFDUJWF$/PU0CKFDUJWF$  $ݴޠ΋ग़͖ͯ·͢

  11. ຊ୊ جຊ Ϋϥεͷએݴ ϝιου એݴ ࣮૷ ݺͼग़͠ #MPDLT .BDSP Ԡ༻

    - Type inference. - Method chain. - The strongest Objective-C I thought

  12. Ϋϥεͷએݴ CustomClass.h @interface CustomClass : NSObject @end CustomClass.m #import “CustomClass.h"

    @implementation CustomClass @end

  13. Ϋϥεͷએݴ CustomClass.h @interface CustomClass : NSObject // ͜͜ʹΠϯλʔϑΣʔε @end CustomClass.m

    #import “CustomClass.h" @implementation CustomClass // ͜͜ʹ࣮૷ @end I ϔομʔϑΝΠϧ ͱ N ϝΠϯϑΝΠϧ Λ࡞Δ 9DPEFͰΫϥεΛ࡞ΔͱͰ͖͍ͯ·͢

  14. Ϋϥεͷએݴ CustomClass.h @interface CustomClass : NSObject // ͜͜ʹΠϯλʔϑΣʔε @end CustomClass.m

    #import “CustomClass.h" @implementation CustomClass // ͜͜ʹ࣮૷ @end IϑΝΠϧ͸ΠϯλʔϑΣʔεΛఆٛ͢Δ ͨΊͷϑΝΠϧ IϑΝΠϧʹΫϥεΛએݴ͠ͳ͍ͱଞͷΫ ϥε͔Β͸ݟΔ͜ͱ͕Ͱ͖ͳ͍

  15. $MBTTͷએݴ CustomClass.h @interface CustomClass : NSObject // ͜͜ʹΠϯλʔϑΣʔε @end CustomClass.m

    #import “CustomClass.h" @implementation CustomClass // ͜͜ʹ࣮૷ @end ͍͍ͩͨ/40CKFDU΋͘͠͸ /40CKFDUΛܧঝ͍ͯ͠ΔΫϥεΛ ܧঝ͓͚ͯ͠͹0,

  16. Ϋϥεͷએݴ CustomClass.h @interface CustomClass : NSObject // ͜͜ʹΠϯλʔϑΣʔε @end CustomClass.m

    #import “CustomClass.h" @implementation CustomClass // ͜͜ʹ࣮૷ @end NʹIͰએݴͨ͠಺༰Λ࣮૷͍ͯ͘͠

  17. CustomClass.h @interface CustomClass : NSObject // ͜͜ʹΠϯλʔϑΣʔε @end ϝιουͷએݴ

  18. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ͜Μͳײ͡

  19. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ϝιουͷએݴ ͕͜͜ฦΓ஋

  20. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ϝιουͷએݴ ϝιουͷ໊લ

  21. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ϝιουͷએݴ ୈೋҾ਺Ҏ߱ʹ͸-BCFM͕ͭ͘

  22. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ϝιουͷએݴ A A͕Ϋϥεϝιου 4XJGUͩͱADMBTTGVODA AA͕Πϯελϯεϝιου 4XJGUͩͱAGVODA

  23. CustomClass.h @interface CustomClass : NSObject + (instancetype)method; - (void)method:(NSObject *)hoge;

    - (NSObject *)method:(NSObject *)hoge with:(NSObject *)fuga; @end ϝιουͷએݴ AJOTUBODFUZQFA͸ࣗ෼ͷ
 ΠϯελϯεͷܕΛද͢એݴ
 ܧঝઌͰ͜ͷϝιουΛ࢖ͭ৔߹
 ܧঝઌͷܕͱͯ͠ฦΔ

  24. @interface CustomClass : NSObject + (instancetype)method; @end @interface CustomClass2 :

    CustomClass //- (instancetype)method; @end JOTUBODFUZQFʹ͍ͭͯ

  25. @interface CustomClass : NSObject + (instancetype)method; @end @interface CustomClass2 :

    CustomClass //- (instancetype)method; @end JOTUBODFUZQF ͜ͷ৔߹ͷAJOTUBODFUZQFA͸ $VTUPN$MBTT

  26. @interface CustomClass : NSObject + (instancetype)method; @end @interface CustomClass2 :

    CustomClass //- (instancetype)method; @end JOTUBODFUZQF ͜ͷ৔߹ͷAJOTUBODFUZQFA͸ $VTUPN$MBTT

  27. CustomClass.m #import “CustomClass.h" @implementation CustomClass // ͜͜ʹ࣮૷ @end ϝιουͷ࣮૷

  28. CustomClass.m
 #import “CustomClass.h" @implementation CustomClass + (instancetype)method1 { CustomClass *custom

    = [[CustomClass alloc] init]; return custom; } - (void)method: (NSObject *)hoge { // do something... } @end ͜Μͳײ͡

  29. CustomClass.m
 #import “CustomClass.h" @implementation CustomClass + (instancetype)method1 { CustomClass *custom

    = [[CustomClass alloc] init]; return custom; } - (void)method: (NSObject *)hoge { // do something... } @end ϝιουͷ࣮૷ IͰॻ͔Ε͍ͯΔ௨Γʹએݴ͠ɺ
 \^είʔϓͷதͰϝιουͷ࣮૷

  30. CustomClass.m
 #import “CustomClass.h" @implementation CustomClass + (instancetype)method1 { CustomClass *custom

    = [[CustomClass alloc] init]; return custom; } - (void)method: (NSObject *)hoge { // do something... } @end ϝιουͷ࣮૷ ϩʔΧϧม਺΍ASFUVSOAจͱ͔ࡉ͔͍͜ ͱʹ͍ͭͯ͸ׂѪ

  31. @interface CustomClass : NSObject + (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end ϝιουͷݺͼग़͠

  32. @interface CustomClass : NSObject + (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end $VTUPN$MBTT͔Β$VTUPN$MBTTΛ࢖͏ ҧ͏Ϋϥε

  33. @interface CustomClass : NSObject + (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end ϝιουͷݺͼग़͠ ͜ͷೋͭʹ஫໨

  34. @interface CustomClass : NSObject - (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end ϝιουͷݺͼग़͠ 0CKFDUJWF$ͷϝιουͷݺͼग़͠͸
 <A3FDFJWFSANFUIPE> ͷܗʹͳΔ

  35. @interface CustomClass : NSObject - (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end ϝιουͷݺͼग़͠ ͜ͷ৔߹͸
 A3FDFJWFSAA$VTUPN$MBTTA ΫϥεʹϝιουΛૹ͍ͬͯΔͷͰ
 ͜Ε͸Ϋϥεϝιουͷݺͼग़͠

  36. @interface CustomClass : NSObject - (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [object method]; } @end ϝιουͷݺͼग़͠ ͜ͷ৔߹͸
 A3FDFJWFSAAPCKFDUA $VTUPN$MBTTܕͷΠϯελϯεʹ
 ϝιουΛૹ͍ͬͯΔͷͰ Πϯελϯεϝιου

  37. @interface CustomClass : NSObject - (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [[object method] method]; } @end ϝιουͷݺͼग़͠ ͪͳΈʹϝιουνΣΠϯΛ
 ͢Δͱ͜͏ͳΔ

  38. @interface CustomClass : NSObject + (instancetype)method; @end @implementation CustomClass2 -

    (void)someMethod { CustomClass* object = [[CustomClass alloc] init]; [[[[object method] method] method]; } @end ϝιουͷݺͼग़͠ ʜ

  39. ʜ

  40. [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ [[[[[[[[[[[[object method] method] method] method] method] method] method] method]

    method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] method] ; ϝιουνΣΠϯΛ͢Δͱ<>͕͍ͬͺ͍ʹ ͳΔ

  41. ݟͨ໨͕

  42. <>͚ͭ͗ͯ͢

  43. Χοίѱ͍

  44. ݴ͍͔͚ͨͬͨͩͰ͢

  45. ຊ୊ جຊ Ϋϥεͷએݴ ϝιου એݴ ࣮૷ ݺͼग़͠ #MPDLT .BDSP Ԡ༻

    - Type inference. - Method chain. - The strongest Objective-C I thought ࣍͜͜

  46. #MPDLTͱ͸ 4XJGUͰ͍͏ͱ͜Ζͷ$MPTVSF ͬΆ͍΋ͷ  $MPTVSFΑΓ΋ѻ͍ͮΒ͍ ॻ͖ํ͕൥ࡶ ॻ͖ํΛ͍ͭ΋๨ΕΔ IUUQGVDLJOHCMPDLTZOUBYDPNهࡌͷ࢓ํ͸͔͜͜Β

  47. #MPDLTͱ͸ 4XJGUͰ͍͏ͱ͜Ζͷ$MPTVSF ͬΆ͍΋ͷ  $MPTVSFΑΓ΋ѻ͍ͮΒ͍ ॻ͖ํ͕൥ࡶ ॻ͖ํΛ͍ͭ΋๨ΕΔ IUUQGVDLJOHCMPDLTZOUBYDPNهࡌͷ࢓ํ͸͔͜͜Β એݴ͢Δ৔ॴʹΑͬͯॻ͖ํ͕มΘΔ ৄ͍͠એݴͷ࢓ํ͸͔͜͜ΒΈ͍ͯͩ͘͞

  48. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end

  49. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end 0CKFDUJWF$ͷϓϩύςΟͷએݴ

  50. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end ͜͜ʹଐੑ


    ৄࡉ͸লུ

  51. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end $PQZΛ͚ͭΔඞཁ͕͋Δ

  52. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end ฦΓ஋ͷܕ

  53. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end #MPDLTͷ໊લ

    ϓϩύςΟͷ໊લ

  54. ࠓճ͸ϓϩύςΟͷΈ঺հ એݴ
 !JOUFSGBDF$VTUPN$MBTT/40CKFDU @property (nonatomic, copy) NSObject* (^blocks)(NSInteger); @end Ҿ਺ͷܕ

  55. #MPDLTͰ͸ͳ͍৔߹ એݴ !JOUFSGBDF$VTUPN$MBTT/40CKFDU !QSPQFSUZ OPOBUPNJD DPQZ /40CKFDU PCKFDU @end #MPDLTͰ͸ͳ͍৔߹͸͜Μͳײ͡


    ͜͜ʹอ࣋͢ΔܕͱϓϩύςΟ໊Λهࡌ

  56. #MPDLTͷϓϩύςΟΛ࢖͏ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %ld", integer); return [[NSObject alloc] init]; }; self.blocks(1); // log: 1 }

  57. #MPDLTͷϓϩύςΟΛ࢖͏ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %ld", integer); return [[NSObject alloc] init]; }; self.blocks(1); // log: 1 } ฦΓ஋

  58. #MPDLTͷϓϩύςΟΛ࢖͏ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %ld", integer); return [[NSObject alloc] init]; }; self.blocks(1); // log: 1 } Ҿ਺

  59. #MPDLTͷϓϩύςΟΛ࢖͏ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %ld", integer); return [[NSObject alloc] init]; }; self.blocks(1); // log: 1 } \^ͷத਎͕࣮૷

  60. #MPDLTͷϓϩύςΟΛ࢖͏ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %ld", integer); return [[NSObject alloc] init]; }; self.blocks(1); // log: 1 } ࣮ߦ͢Δͱ͖

  61. 4FMGΛΩϟϓνϟ͍ͨ͠ͱ͖ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %@", self); return [[NSObject alloc] init]; }; }

  62. 4FMGΛΩϟϓνϟ͍ͨ͠ͱ͖ ࢖͏ - (void)someMethod { self.blocks = ^NSObject* (NSInteger integer)

    { NSLog(@"log: %@", self); return [[NSObject alloc] init]; }; } TFMGΛΩϟϓνϟ͢Δͱ
 ॥؀ࢀর͕ى͖ͯ͠·͏

  63. ऑࢀরΛ࢖͏ ࢖͏ - (void)someMethod { __weak CustomClass *weakSelf = self;

    self.blocks = ^NSObject* (NSInteger integer) { NSLog(@"log: %@", weakSelf); return [[NSObject alloc] init]; }; }

  64. ऑࢀরΛ࢖͏ ࢖͏ - (void)someMethod { __weak CustomClass *weakSelf = self;

    self.blocks = ^NSObject* (NSInteger integer) { NSLog(@"log: %@", weakSelf); return [[NSObject alloc] init]; }; } XFBLͷTFMGͷࢀরΛ࣋ͭ

  65. ऑࢀরΛ࢖͏ ࢖͏ - (void)someMethod { __weak CustomClass *weakSelf = self;

    self.blocks = ^NSObject* (NSInteger integer) { NSLog(@"log: %@", weakSelf); return [[NSObject alloc] init]; }; } CMPDLTͷதͰ͸XFBL4FMGΛ࢖͏

  66. ॥؀ࢀর͕ى͖Δ৔߹͸ؾΛ͚ͭΑ͏

  67. ຊ୊ جຊ Ϋϥεͷએݴ ϝιου એݴ ࣮૷ ݺͼग़͠ #MPDLT .BDSP Ԡ༻

    - Type inference. - Method chain. - The strongest Objective-C I thought ࣍͜͜

  68. .BDSPͱ͸ ϓϩάϥϜதͷจࣈྻΛ͋Β͔͡Ίఆٛͨ͠نଇʹ͕ͨͬͯ͠ஔ׵ ͢Δػೳͷ͜ͱΛ͍͍·͢ ŠҾ༻$ݴޠͷϚΫϩͷجຊʹ͍ͭͯ IUUQXXXDMBOHPSHEFUBJMNBDSP@CBTJDIUNM

  69. .BDSPͱ͸ ϓϩάϥϜதͷจࣈྻΛ͋Β͔͡Ίఆٛͨ͠نଇʹ͕ͨͬͯ͠ஔ׵ ͢Δػೳͷ͜ͱΛ͍͍·͢ ŠҾ༻$ݴޠͷϚΫϩͷجຊʹ͍ͭͯ IUUQXXXDMBOHPSHEFUBJMNBDSP@CBTJDIUNM ͜Ε͚ͩݴΘΕͯ΋Θ͔Βͳ͍ͱࢥ͏ͷͰ ࢖ͬͯΈ·͠ΐ͏

  70. .BDSPͱ͸ ϓϩάϥϜதͷจࣈྻΛ͋Β͔͡Ίఆٛͨ͠نଇʹ͕ͨͬͯ͠ஔ׵ ͢Δػೳͷ͜ͱΛ͍͍·͢ ŠҾ༻$ݴޠͷϚΫϩͷجຊʹ͍ͭͯ IUUQXXXDMBOHPSHEFUBJMNBDSP@CBTJDIUNM ·͔ͣ͜͜Β نଇͷఆٛΛ͢Δ

  71. نଇΛఆٛ͢Δ #define Log NSLog(@"ίίϮτΦολϤʔ") ఆٛεϧϤʔએݴ

  72. نଇΛఆٛ͢Δ #define Log NSLog(@"ίίϮτΦολϤʔ") ͜ͷఆٛͷ໊લ

  73. .BDSPͱ͸ ϓϩάϥϜதͷจࣈྻΛ͋Β͔͡Ίఆٛͨ͠نଇʹ͕ͨͬͯ͠ஔ׵ ͢Δػೳͷ͜ͱΛ͍͍·͢ ŠҾ༻$ݴޠͷϚΫϩͷجຊʹ͍ͭͯ IUUQXXXDMBOHPSHEFUBJMNBDSP@CBTJDIUNM ࣍͜͜Λ֬ೝ

  74. نଇΛఆٛ͢Δ #define Log NSLog(@"ίίϮτΦολϤʔ") ஔ׵͢Δ಺༰

  75. ஔ׵͢Δ಺༰ #define Log NSLog(@"ίίϮτΦολϤʔ") -PHͱϓϩάϥϜதʹॻ͘ͱ
 /4-PH !lίίϮτΦολϤʔ  ʹஔ׵͞ΕΔ

  76. ͭ·Γ͜͏ͳΔ #define Log NSLog(@"ίίϮτΦολϤʔ") - (void)someMethod { Log; }

  77. ͭ·Γ͜͏ͳΔ #define Log NSLog(@"ίίϮτΦολϤʔ") - (void)someMethod { Log; // ίίϮτΦολϤʔ

    } ͕͜͜
 /4-PH !lίίϮτΦολϤʔ  ஔ׵͞ΕΔ

  78. .BDSPʹ͍ͭͯ ଞʹ΋Ҿ਺ΛऔΔ͜ͱ͕Ͱ͖ͨΓ ఆ਺ͱͯ͠એݴ͢ΔΑ͏ͳ࢖͍ํͩͬͨΓ τʔΫϯͱݺ͹ΕΔػೳͩͬͨΓ͕͋ΔͷͰ ௐ΂ͯΈΔͱ໘ന͍Ͱ͢ ඇৗʹڧྗͰ͕͢࢖͍͗͢ʹ͸͝஫ҙ

  79. ຊ୊ جຊ Ϋϥεͷએݴ ϝιου એݴ ࣮૷ ݺͼग़͠ #MPDLT .BDSP Ԡ༻

    - Type inference. - Method chain. - The strongest Objective-C I thought ͔͜͜Β͕ຊ౰ʹ࿩͔ͨͬͨ͠಺༰ͩ͊ʂ

  80. 5ZQFJOGFSFODF

  81. 5ZQFJOGFSFODF ܕਪ࿦

  82. 0CKFDUJWF$ͷܕ 0CKFDUJWF$͸ϓϩάϥϜதʹܕΛهड़͢Δ͜ͱ͕Ͱ͖·͕͢ɺ࣮ ࡍ͸3VOUJNFͰܕ͕ܾ·Δಈతܕ෇͚ݴޠͰ͢ɻ ϓϩάϥϜதʹܕΛએݴ͢Δ͜ͱͰ*%&ͷิ׬͕ޮ͖΍͍͢ͱݴͬ ͨར఺͕͋Γ·͢ɻ ࣮ࡍʹ͸ಈతܕ෇͚Ͱ͋Δ͜ͱʹ͸มΘΒͳ͍ͷͰ͕͢ɺ*%&͕ղ ऍ͢ΔܕΛਪ࿦ͤ͞Δ͜ͱ͕Ͱ͖·͢ɻ ͦ͏ɺ@@BVUP@UZQFͳΒͶ

  83. @@BVUP@UZQF - (void)someMethod { __auto_type string = @"hogehoge"; string.length; }

  84. @@BVUP@UZQF - (void)someMethod { __auto_type string = @"hogehoge"; string.length; }

    ීஈܕΛએݴ͢Δ৔ॴʹ
 @@BVUP@UZQF

  85. @@BVUP@UZQF - (void)someMethod { __auto_type string = @"hogehoge"; string.length; }

    /44USJOHͷMFOHUI
 ϓϩύςΟʹΞΫηεͰ͖Δ ͭ·Γܕਪ࿦Λͯ͘͠ΕΔ

  86. @@BVUP@UZQF - (void)someMethod { __auto_type string = @"hogehoge"; string.length; }

    ѹ౗తਪ࿦

  87. .FUIPEDIBJO

  88. .FUIPEDIBJO MJLF4XJGU

  89. 4XJGUͬΆ͘ .FUIPEDIBJO

  90. 4XJGUͬΆ͘ .FUIPEDIBJO ͑ʁ0CKFDUJWF$ͬͯ͋ͷϝιουݺͼग़͢ͱ͖ʹ<>͚ͭ͗ͯ͢Χοί ѱ͍ݴޠͰ͠ΐʁ ͦ͏ࢥͬͨͦ͜ͷ͋ͳͨਖ਼ղͰ͢ɻ ࢒೦ͳ͕Βϝιουݺͼग़͠͸<>͚ͭΔͷ͕0CKFDUJWF$ ͜͜Ͱ͸ࠓ·Ͱಘͨ஌ࣝͷதͰ<>͚ͭͣʹॲཧΛॻ͍͍͖ͯ ͞ΒʹͦΕΛͭͳ͍Ͱ͍͖·͢ɻ

  91. ๨Εͨਓ͸ޙͰεϥΠυݟ௚ͯ͠Ͷ @interface CustomClass : NSObject @property (nonatomic, copy) CustomClass* (^method)();

    @property (nonatomic, copy) CustomClass* (^chain)(); @end ฦΓ஋͖ͭCMPDLTͷϓϩύςΟΛએݴ͢Δ

  92. ࢖͍ํ - (void)someMethod { self.chain(); }

  93. ࢖͍ํ - (void)someMethod { self.method(); } ॲཧΛ໊લ  Ͱݺͼग़ͤΔ

  94. ϝιουνΣΠϯ self.method().chain().chain().chain().chain().chain().chain( ).chain().chain().chain().chain().chain().chain().chain().ch ain().chain().chain().chain().chain().chain().chain().chain( ).chain().chain().chain().chain().chain().chain().chain().ch ain().chain().chain().chain().chain();

  95. ͚ͭ͗ͯ͢΋

  96. ͔͍͍ͬ͜

  97. ࣍ߦ͖·͠ΐ͏

  98. The strongest Objective-C I thought

  99. ๻ͷ͔Μ͕͑ͨ࠷ڧͷObjective-C

  100. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld”, count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); }

  101. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld”, count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); } ๻ͷ͔Μ͕͑ͨ࠷ڧͷ0CKFDUJWF$

  102. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld”, count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); } ࣮ߦ݁Ռ ίίϮτΦολϤʔ count: 0 count: 2

  103. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld”, count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); } ܕਪ࿦͕Ͱ͖Δʂ
 MFUͰఆ਺Λ؆୯ʹએݴʂ

  104. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld", count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); } ΋ͬͱ؆୯ʹϩάΛు͘Α͏ʹʂ
 ϚΫϩ͸෼ذॲཧ΋͔͚ΔͷͰ
 ඞཁ͕͋Ε͹֦ு

  105. #define let __auto_type const #define var __auto_type #define dump(count) NSLog(@“count:

    %ld”, count) #define print() NSLog(@"ίίϮτΦολϤʔ") NSArray* Array() { return @[]; } - (instancetype)init { self = [super init]; if (self) { self.method = ^{ print(); }; } return self; } - (void)someMethod { let array = Array(); var array2 = Array(); array2 = @[@"hoge", @"fuga"]; // array = @[@"hoge", @"fuga"]; ίϯύΠϧΤϥʔ self.method(); dump(array.count); dump(array2.count); } $ݴޠͷTZOUBYΛ࢖ͬͯ ؾܰʹJOJUJBMJ[FSΛ࢖͑ΔΑ͏ʹʂ ͦͯ͠ɺ/4ϓϨϑΟοΫε΋ͱΔʂ

  106. ૉఢͰ͠ΐʁ

  107. Ͳ͔͜ͰΈͨ͜ͱ͋Δʁ

  108. None

  109. ൃදͷ·ͱΊ ๻ͷ͔Μ͕͑ͨ࠷ڧͷ0CKFDUJWF$͸ͱͯ΋ૉ੖Β͍͠΋ͷ͕ग़དྷ্͕Γ· ͨ͠ɻ ͔͠͠ɺνʔϜͰͷ։ൃͩͱ΍͸ΓࠞཚΛট͘Մೳੑ͕େ͖͍ͷͰ࢖༻͸΍ Ί·͠ΐ͏ɻ ͪͳΈʹʮ๻ͷ͔Μ͕͑ͨ࠷ڧͷ0CKFDUJWF$ʯʹࣅͨ4XJGUͱ͍͏ݴޠͰ ࡞ͬͨϥΠϒϥϦΛ͍͔ͭ͘ެ։͍ͯ͠ΔͷͰɺΈͳ͞Μ શͯͷϦϙδτϦʹελʔ͍ͩ͘͞ IUUQTHJUIVCDPNCBOO[BJ

  110. ͓͠·͍a ?P?