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

Protocols All The Way Down - dotSwift, Paris, J...

Ellen Shapiro
PRO
January 29, 2018
Technology
1
2.7k

Protocols All The Way Down - dotSwift, Paris, January 2018

A talk about the benefits and drawbacks of Protocol Oriented Programming, and protocols with default implementations.

Video:
https://www.dotconferences.com/2018/01/ellen-shapiro-protocols-all-the-way-down

Playground:
https://github.com/designatednerd/ProtocolPlayground

Ellen Shapiro
PRO

January 29, 2018
Tweet

More Decks by Ellen Shapiro

See All by Ellen Shapiro
Dub Dub Time Machine - Swift Connection, Paris, France, September 2024
designatednerd
PRO
0
72
The Date-ing Game - NSSpain, Logroño, Rioja, September 2024
designatednerd
PRO
0
68
The Date-ing Game - SwiftCraft, Folkestone, UK, May 2024
designatednerd
PRO
0
100
The Date-ing Game - iOS Conf SG, Singapore, January 2024
designatednerd
PRO
0
140
Server Side Swift and GraphQL: A Match Made In Heaven Or Hell? - Deep Dish Swift, Chicago IL, May 2023
designatednerd
PRO
0
96
Generating Code And Other Mischief With Swift Package Manager Plugins - Server-Side Swift, London, December 2022
designatednerd
PRO
0
250
Generating Code And Other Mischief With Swift Package Manager Plugins - iOS Dev UK, Aberystwyth, Wales, September 2022
designatednerd
PRO
1
290
Generating Code And Other Mischief With Swift Package Manager Plugins - 360iDev, Denver, CO, August 2022
designatednerd
PRO
0
210
You Need A Break - Women Who Code Mobile Summit, Online, July 2022
designatednerd
PRO
0
65

Other Decks in Technology

See All in Technology
Snowflake女子会#3 Snowpipeの良さを5分で語るよ
lana2548
0
220
継続的にアウトカムを生み出し ビジネスにつなげる、 戦略と運営に対するタイミーのQUEST(探求)
zigorou
0
510
非機能品質を作り込むための実践アーキテクチャ
knih
3
720
AWS re:Invent 2024で発表された コードを書く開発者向け機能について
maruto
0
180
サイバー攻撃を想定したセキュリティガイドライン 策定とASM及びCNAPPの活用方法
syoshie
3
1.2k
社外コミュニティで学び社内に活かす共に学ぶプロジェクトの実践/backlogworld2024
nishiuma
0
250
PHPからGoへのマイグレーション for DMMアフィリエイト
yabakokobayashi
1
160
統計データで2024年の クラウド・インフラ動向を眺める
ysknsid25
2
840
複雑性の高いオブジェクト編集に向き合う: プラガブルなReactフォーム設計
righttouch
PRO
0
110
Qiita埋め込み用スライド
naoki_0531
0
860
10分で学ぶKubernetesコンテナセキュリティ/10min-k8s-container-sec
mochizuki875
3
320
私なりのAIのご紹介 [2024年版]
qt_luigi
1
120

Featured

See All Featured
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
2
290
A Philosophy of Restraint
colly
203
16k
Making Projects Easy
brettharned
116
5.9k
GraphQLの誤解/rethinking-graphql
sonatard
67
10k
The Cost Of JavaScript in 2023
addyosmani
45
7k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
10
810
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
panda_program
95
17k
Building a Scalable Design System with Sketch
lauravandoore
460
33k
GitHub's CSS Performance
jonrohan
1030
460k
Side Projects
sachag
452
42k
Building Better People: How to give real-time feedback that sticks.
wjessup
365
19k
The Pragmatic Product Professional
lauravandoore
32
6.3k

Transcript

  1. PROTOCOLS ALL THE WAY DOWN DOT SWIFT | PARIS, FRANCE

    | JANUARY 2018 @DESIGNATEDNERD | BAKKENBAECK.COM | JUSTHUM.COM
  2. None

  3. PROTOCOL-ORIENTED PROGRAMMING

  4. None
  5. None

  6. PROTOCOL-ORIENTED PROGRAMMING

  7. PROTOCOLS WITH DEFAULT IMPLEMENTATIONS

  8. None
  9. None
  10. None
  11. None

  12. DEFAULT PROTOCOL IMPLEMENTATION extension

  13. None
  14. None
  15. None
  16. None
  17. None
  18. None
  19. None
  20. None
  21. None
  22. None
  23. None
  24. None
  25. None

  26. CONDITIONAL DEFAULT PROTOCOL IMPLEMENTATION extension

  27. None
  28. None
  29. None
  30. None

  31. extension

  32. None
  33. None
  34. None
  35. None

  36. where Self:...

  37. None
  38. None

  39. github.com/designatednerd/ ProtocolPlayground

  40. None
  41. None
  42. None
  43. None
  44. None
  45. None

  46. MULTIPLE where CLAUSES

  47. None
  48. None
  49. None
  50. None
  51. None
  52. None
  53. None
  54. None
  55. None
  56. None
  57. None
  58. None

  59. SUBCLASS-LIKE BEHAVIOR WITHOUT THE BAGGAGE OF SUBCLASSING

  60. CENTRALIZATION! DRY CODE!

  61. NO INSANE INHERITANCE TREES

  62. PROTOCOL-ORIENTED ! PITFALLS

  63. POP QUIZ

  64. None
  65. None
  66. None
  67. None
  68. None
  69. None
  70. None
  71. None

  72. TYPE INFERENCE: !

  73. TYPE INFERENCE: !

  74. TYPE INFERENCE: !

  75. SPECIFYING PROTOCOL TYPE: !

  76. SPECIFYING PROTOCOL TYPE: !

  77. SPECIFYING PROTOCOL TYPE: !

  78. SPECIFYING PROTOCOL TYPE: !

  79. SPECIFYING PROTOCOL TYPE: !

  80. None
  81. None
  82. None

  83. DEFAULT IMPLEMENTATIONS VS. EXTENSIONS VS. SUBCLASSES

  84. DEFAULT IMPLEMENTATIONS **(PLAIN VANILLA OR CONDITIONAL) VS. EXTENSIONS VS. SUBCLASSES

  85. > Do I need this to work on all instances

    and/or subclasses of a particular thing? Extension! > Do I need this method to work only when I say it should, or in a particular combination of circumstances? Default implementation! > Does this always need to be called from a particular lifecycle or delegate method? Subclass!

  86. CHOOSE YOUR TOOLS WISELY

  87. None

  88. ! MERÇI BEAUCOUP! !

  89. LINKS! > Protocol-Oriented Programming, WWDC 2015 developer.apple.com/videos/play/wwdc2015/408 > The ghost

    of Swift Bugs Future, Alexandros Salazar nomothetis.svbtle.com/the-ghost-of-swift-bugs- future

  90. PHOTO CREDITS! > Businessman, by Daniel X. O'Neil flickr.com/photos/juggernautco/6037175371 >

    Hammered Screw, by Justin Baeder flickr.com/photos/justinbaeder/5317820857 > Knot, by JP Davidson flickr.com/photos/jpdavidsonimages/4677642617