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

The Taming of the Deftype

Avatar for Baishampayan Ghose Baishampayan Ghose
May 11, 2012
Programming
160
2

The Taming of the Deftype

Slides from a talk I presented at Clojure/West 2012, San Jose, CA.

Avatar for Baishampayan Ghose

Baishampayan Ghose

May 11, 2012

More Decks by Baishampayan Ghose

See All by Baishampayan Ghose
The Revenge of the Pragmatists
Avatar for Baishampayan Ghose bg
0
270
The Postmodern Programmer
Avatar for Baishampayan Ghose bg
0
100
The Roots of Go
Avatar for Baishampayan Ghose bg
1
1.8k
On Solving Problems
Avatar for Baishampayan Ghose bg
0
140

Other Decks in Programming

See All in Programming
Everything Claude Code OSS詳細 — 5層構造の中身と導入方法
Avatar for techs-targe targe
0
160
Codexに役割を持たせる 他のAIエージェントと組み合わせる実務Tips
Avatar for o8n o8n
4
1.4k
What Spring Developers Should Know About Jakarta EE
Avatar for ivargrimstad ivargrimstad
0
840
Symfony + NelmioApiDocBundle を使った スキーマ駆動開発 / Schema Driven Development with NelmioApiDocBundle
Avatar for Shohei Okada okashoi
0
250
メッセージングを利用して時間的結合を分離しよう #phperkaigi
Avatar for Takuma Kajikawa kajitack
3
520
PHPのバージョンアップ時にも役立ったAST（2026年版）
Avatar for Atsushi Matsuo matsuo_atsushi
0
270
How to stabilize UI tests using XCTest
Avatar for Akio Itaya akkeylab
0
150
S3ストレージクラスの「見える」「ある」「使える」は全部違う ─ 体験から見た、仕様の深淵を覗く
Avatar for ya_ma23 ya_ma23
0
1.2k
年間50登壇、単著出版、雑誌寄稿、Podcast出演、YouTube、CM、カンファレンス主催……全部やってみたので面白さ等を比較してみよう / I’ve tried them all, so let’s compare how interesting they are.
Avatar for nrs nrslib
4
560
「効かない！」依存性注入（DI）を活用したAPI Platformのエラーハンドリング奮闘記
Avatar for Maki Hayashi mkmk884
0
280
AI時代の脳疲弊と向き合う ~言語学としてのPHP~
Avatar for Sakurai sakuraikotone
1
1.7k
Reactive ❤️ Loom: A Forbidden Love Story
Avatar for Francesco Nigro franz1981
2
210

Featured

See All Featured
The Art of Delivering Value - GDevCon NA Keynote
Avatar for David Neal reverentgeek
16
1.9k
Fight the Zombie Pattern Library - RWD Summit 2016
Avatar for Marcelo Somers marcelosomers
234
17k
Statistics for Hackers
Avatar for Jake VanderPlas jakevdp
799
230k
Faster Mobile Websites
Avatar for Dean Hume deanohume
310
31k
svc-hook: hooking system calls on ARM64 by binary rewriting
Avatar for Akira Moroo retrage
2
190
Building AI with AI
Avatar for Ines Montani inesmontani
PRO
1
840
AI: The stuff that nobody shows you
Avatar for John Nunemaker jnunemaker
PRO
4
500
職位にかかわらず全員がリーダーシップを発揮するチーム作り / Building a team where everyone can demonstrate leadership regardless of position
Avatar for MADOX madoxten
62
53k
How To Speak Unicorn (iThemes Webinar)
Avatar for Michelle Schulp Hunt marktimemedia
1
420
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
Avatar for Eileen M. Uchitelle eileencodes
26
3.4k
The Cult of Friendly URLs
Avatar for Andy Hume andyhume
79
6.8k
Information Architects: The Missing Link in Design Systems
Avatar for Michelle Chin soysaucechin
0
850

Transcript

  1. deftype the taming of the Baishampayan “BG” Ghose @ghoseb Clojure/West

    2012 Friday 16 March 12

  2. @ghoseb helpshift.com Friday 16 March 12

  3. @ghoseb helpshift.com I caught a dead mouse in the office

    the other day Friday 16 March 12

  4. MOTIVATION Friday 16 March 12

  5. Friday 16 March 12

  6. Friday 16 March 12

  7. Maps Friday 16 March 12

  8. Records Friday 16 March 12

  9. Types Friday 16 March 12

  10. TO SUMMARIZE Friday 16 March 12

  11. deftype Performance Collection Abstractions Named Type Mutable Fields Full Control

    Friday 16 March 12

  12. defrecord Performance Collection Abstractions Named Type HashMap Semantics * Friday

    16 March 12

  13. maps Every other use-case Friday 16 March 12

  14. IN SHORT Friday 16 March 12

  15. Use Maps! Friday 16 March 12

  16. Dive into deftype Friday 16 March 12

  17. Use the source, Luke! Friday 16 March 12

  18. IPersistentMap Seqable Associative IPersistentCollection ILookup Counted IFn IPersistentSet IObj Object

    IMeta IPersistentStack Indexed IPersistentVector Friday 16 March 12

  19. IPersistentMap Seqable Associative IPersistentCollection ILookup Counted IFn IPersistentSet IObj Object

    IMeta IPersistentStack Indexed IPersistentVector Friday 16 March 12

  20. Friday 16 March 12

  21. Scaffold Friday 16 March 12

  22. ‘scaffold’ by Christophe Grand Friday 16 March 12

  23. } Interface we want Ancestor interface Method sigs. . .

    . . . . . Friday 16 March 12

  24. bit.ly/clj-scaffold steal this code! Friday 16 March 12

  25. A Note About IFn Holy arities, Batman! Friday 16 March

    12

  26. A Note About IFn Should implement all to avoid non-helpful

    exception. Friday 16 March 12

  27. MUTABLE TYPES Friday 16 March 12

  28. ^:volatile-mutable ^:unsynchronized-mutable atomic reads & writes a ‘vanilla’ Java mutable

    field Friday 16 March 12

  29. Friday 16 March 12

  30. Printing Friday 16 March 12

  31. clojure.core/print-method for humans Friday 16 March 12

  32. clojure.core/print-dup for the reader Friday 16 March 12

  33. #mylib.core.MyType[1,2,3] Object Literal Reader Syntax Friday 16 March 12

  34. Factory Functions Friday 16 March 12

  35. Hide Implementation Details Avoid Importing Java Classes Friday 16 March

    12

  36. (my-type :foo :bar) (import myns.MyType) (MyType. [:foo :bar]) vs. Friday

    16 March 12

  37. AN EXAMPLE IMPLEMENTATION (a weekend hack) Friday 16 March 12

  38. bit.ly/clj-chainmap steal this code! Friday 16 March 12

  39. Fin Friday 16 March 12

  40. Friday 16 March 12