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
170
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
280
The Postmodern Programmer
Avatar for Baishampayan Ghose bg
0
110
The Roots of Go
Avatar for Baishampayan Ghose bg
1
1.8k
On Solving Problems
Avatar for Baishampayan Ghose bg
0
150

Other Decks in Programming

See All in Programming
変化を抱擁するドキュメントの作り方 - ビジネスルール駆動開発がもたらす、コードとの新しい関係
Avatar for ioki ioki
2
110
RSSとCodexを使ってX投稿自動化してみた
Avatar for Ochtum ochtum
0
110
AIの中の人になってみる
Avatar for tkym htkym
0
170
Kiroで創り、AgentCoreで繋ぐ！AWSで実践する「AI-DLC」から「AIエージェント統合」までの最新地図
Avatar for matsukada licux
2
340
異なる設計思想のフレームワークを経験して得た学び
Avatar for amekuhideki amekuhideki
2
1.5k
書籍「プロフェッショナルAI駆動開発」紹介スライド
Avatar for Juntaro Matsumoto juntaromatsumoto
0
990
LL言語やWebフレームワークの PostgreSQL対応 〜DBの機能がユーザーに届くまで〜
Avatar for 武田 憲太郎 kentaroutakeda
0
140
DroidKaigi 2026 「個人開発という実験場: Android エンジニアが手にする4つの自由」
Avatar for SlashNephy slashnephy
0
220
Hono + Inertia + React で LP を構築した話
Avatar for Yuka Ooka oukayuka
2
210
コンパウンドプロダクト開発のためのローカルプロセスマネージャー再発明 #layerxgo
Avatar for izumin5210 izumin5210
0
640
Gmail/Google DriveをトリガーにAIエージェントを動かそう！ / Run AI agents with Gmail/Google Drive as triggers!
Avatar for Har1101 har1101
3
470
Building an Out-of-Order CPU
Avatar for Latte72 latte72
0
690

Featured

See All Featured
Are puppies a ranking factor?
Avatar for Jono Alderson jonoalderson
2
3.9k
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
410
How to train your dragon (web standard)
Avatar for Monica Dinculescu notwaldorf
97
6.8k
Bash Introduction
Avatar for André Augusto Costa Santos 62gerente
615
220k
Marketing Yourself as an Engineer | Alaka | Gurzu
Avatar for Gurzu gurzu
0
290
The SEO Collaboration Effect
Avatar for Kristina Bergwall kristinabergwall1
1
550
How to make the Groovebox
Avatar for あそなす asonas
2
2.4k
Navigating Weather and Climate Data
Avatar for Ryan Abernathey rabernat
0
510
Agile Leadership in an Agile Organization
Avatar for Dr. Kim W Petersen kimpetersen
PRO
0
220
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
Avatar for Vitaly Friedman smashingmag
254
22k
Mobile First: as difficult as doing things right
Avatar for Swwweet swwweet
225
10k
Marketing to machines
Avatar for Jono Alderson jonoalderson
1
5.7k

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