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

Objective-C Runtime Hacking

Avatar for Błażej Biesiada Błażej Biesiada
July 04, 2013
Programming
1
460

Objective-C Runtime Hacking

A short introduction into Objective-C runtime programming.

Avatar for Błażej Biesiada

Błażej Biesiada

July 04, 2013
Tweet

More Decks by Błażej Biesiada

See All by Błażej Biesiada
Safer Objective-C
Avatar for Błażej Biesiada bejo
0
130

Other Decks in Programming

See All in Programming
QAフローを最適化し、品質水準を満たしながらリリースまでの期間を最短化する #RSGT2026
Avatar for shibayu36 shibayu36
2
4.3k
Grafana：建立系統全知視角的捷徑
Avatar for Blueswen blueswen
0
330
Automatic Grammar Agreementと Markdown Extended Attributes
について
Avatar for Kishikawa Katsumi kishikawakatsumi
0
180
AI時代のキャリアプラン「技術の引力」からの脱出と「問い」へのいざない / tech-gravity
Avatar for MinoDriven minodriven
21
7.1k
MDN Web Docs に日本語翻訳でコントリビュート
Avatar for uutan1108 ohmori_yusuke
0
650
Amazon Bedrockを活用したRAGの品質管理パイプライン構築
Avatar for とすり tosuri13
4
270
Spinner 軸ズレ現象を調べたらレンダリング深淵に飲まれた #レバテックMeetup
Avatar for 弁護士ドットコム bengo4com
1
230
Architectural Extensions
Avatar for Denys Poltorak denyspoltorak
0
280
生成AIを使ったコードレビューで定性的に品質カバー
Avatar for Chiaki Okamoto chiilog
1
260
Oxlint JS plugins
Avatar for kazupon kazupon
1
860
「ブロックテーマでは再現できない」は本当か？
Avatar for Takashi Kitajima inc2734
0
930
そのAIレビュー、レビューしてますか？ / Are you reviewing those AI reviews?
Avatar for r-kagaya rkaga
6
4.5k

Featured

See All Featured
Kristin Tynski - Automating Marketing Tasks With AI
Avatar for Tech SEO Connect techseoconnect
PRO
0
140
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
Avatar for Liv Day livdayseo
0
64
The Pragmatic Product Professional
Avatar for Laura Van Doore lauravandoore
37
7.1k
The Organizational Zoo: Understanding Human Behavior Agility Through Metaphoric Constructive Conversations (based on the works of Arthur Shelley, Ph.D)
Avatar for Dr. Kim W Petersen kimpetersen
PRO
0
240
State of Search Keynote: SEO is Dead Long Live SEO
Avatar for Ryan Jones ryanjones
0
110
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
666
130k
Conquering PDFs: document understanding beyond plain text
Avatar for Ines Montani inesmontani
PRO
4
2.3k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
Avatar for Eileen M. Uchitelle eileencodes
26
3.3k
Lessons Learnt from Crawling 1000+ Websites
Avatar for Charles Meaden charlesmeaden
PRO
1
1.1k
HDC tutorial
Avatar for Michiel Stock michielstock
1
370
Design in an AI World
Avatar for tapps tapps
0
140
BBQ
Avatar for Matthew Crist matthewcrist
89
10k

Transcript

  1. [[ObjC runtime] hacking] Błażej Biesiada @_bejo bejo

  2. What is Runtime? ObjC Application Assembler C

  3. What is Runtime? ObjC Application Assembler C Runtime

  4. APIs

  5. APIs • NSObject methods • -class • -isKindOfClass: • etc.

    ...

  6. APIs • NSObject methods • -class • -isKindOfClass: • etc.

    ... • Runtime functions • objc_lookUpClass • class_getName • etc. ...

  7. Demo http://github.com/bejo/BBBRuntimeNavigator

  8. Your own root objects NS_ROOT_CLASS @interface KRKObject { Class!isa; }

    @end

  9. So... how does KVO work?

  10. So... how does KVO work? • objc_registerClassPair

  11. So... how does KVO work? • objc_registerClassPair • class_setSuperclass

  12. So... how does KVO work? • objc_registerClassPair • class_setSuperclass •

    class_addMethod

  13. Associative References

  14. Associative References • objc_setAssociatedObject

  15. Associative References • objc_setAssociatedObject • objc_getAssociatedObject

  16. Associative References • objc_setAssociatedObject • objc_getAssociatedObject • Google: associative references

    category
  17. None

  18. • Objective-C Runtime Programming Guide • Objective-C Runtime Reference •

    Friday Q&A by Mike Ash

  19. Thanks!