Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Clojure 1.10 概要紹介
Search
OHTA Shogo
November 29, 2018
Programming
3
650
Clojure 1.10 概要紹介
2018/11/29のLisp meetup #70の発表資料です。
OHTA Shogo
November 29, 2018
Tweet
Share
More Decks by OHTA Shogo
See All by OHTA Shogo
テンクーでのClojure活用事例
athos
0
340
軽量デバッグツールPostmortemの紹介.pdf
athos
1
200
やってみる!clojure.spec
athos
4
1k
kitchen-async: a promising (?) Promise library, or a poor man's core.async
athos
3
480
Clojure 1.9 概要紹介
athos
4
1.4k
ここ最近のClojureScript
athos
5
1.7k
(= ? (+ nREPL Docker))
athos
0
530
clojure.specの話
athos
3
2.3k
clojure.specの話(仮)
athos
2
350
Other Decks in Programming
See All in Programming
テストから始めるAgentic Coding 〜Claude Codeと共に行うTDD〜 / Agentic Coding starts with testing
rkaga
13
4.5k
VS Code Update for GitHub Copilot
74th
2
650
RailsGirls IZUMO スポンサーLT
16bitidol
0
190
20250704_教育事業におけるアジャイルなデータ基盤構築
hanon52_
5
800
A2A プロトコルを試してみる
azukiazusa1
2
1.4k
新メンバーも今日から大活躍!SREが支えるスケールし続ける組織のオンボーディング
honmarkhunt
5
7.5k
AIと”コードの評価関数”を共有する / Share the "code evaluation function" with AI
euglena1215
1
170
The Modern View Layer Rails Deserves: A Vision For 2025 And Beyond @ RailsConf 2025, Philadelphia, PA
marcoroth
1
250
なぜ適用するか、移行して理解するClean Architecture 〜構造を超えて設計を継承する〜 / Why Apply, Migrate and Understand Clean Architecture - Inherit Design Beyond Structure
seike460
PRO
3
770
ISUCON研修おかわり会 講義スライド
arfes0e2b3c
1
450
ruby.wasmで多人数リアルタイム通信ゲームを作ろう
lnit
3
490
Google Agent Development Kit でLINE Botを作ってみた
ymd65536
2
250
Featured
See All Featured
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
GraphQLとの向き合い方2022年版
quramy
49
14k
Building Flexible Design Systems
yeseniaperezcruz
328
39k
KATA
mclloyd
30
14k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
50k
Writing Fast Ruby
sferik
628
62k
A Tale of Four Properties
chriscoyier
160
23k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.5k
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
18
970
Raft: Consensus for Rubyists
vanstee
140
7k
Navigating Team Friction
lara
187
15k
Designing for humans not robots
tammielis
253
25k
Transcript
$MPKVSF֓ཁհ -JTQNFFUVQPO !BUIPT
֓ཁ ‣ ઌ ɺ3$͕ϦϦʔε BMQIBϦϦʔε CFUBϦϦʔε
3$ϦϦʔε ‣ pOBMϦϦʔεલͳͷͰɺͰͷओཁͳมߋʹ ͍͓ͭͯ͞Β͍
$MPKVSFͷओཁͳมߋ ‣ Τϥʔϝοηʔδͷվળ ‣ EBUBGZ ‣ ϝλσʔλʹΑΔϓϩτίϧͷ֦ு ‣ QSFQM ‣
UBQ
Τϥʔϝοηʔδͷվળ ‣ ࠓճͷϦϦʔεʹ͓͚ΔҰ൪ͷۄ ‣ Τϥʔϝοηʔδͱͯ͠ɺϢʔβʹͲ͏͍ͬͨใΛఏࣔ ͢Δ͔Λൈຊతʹཧ ‣ ඪ४3&1-ͰͷΤϥʔϝοηʔδվળ͚ͩͰͳ͘ଞͷ։ൃ ڥͰΤϥʔใΛศརʹ׆༻Ͱ͖ΔΑ͏ͳ"1*Λఏڙ ‣
·ͩඪ४ͷΤϥʔϝοηʔδඞ͔ͣ͠Γ͍͢Θ͚ Ͱͳ͍ͷͰɺࠓޙͷ։ൃڥଆͷվળ͕ظ͞ΕΔ
Τϥʔͷ͔Γʹ͘͞ͷݪҼ ‣ $MPKVSFͷଟ͘ͷؔΨʔϕδΠϯɾΨʔϕδΞτ ҾνΣοΫ͕ͳ͍ͨΊɺClassCastException IllegalArgumentExceptionɺతʹΤϥʔՕॴΛࣔ ͞ͳ͍Τϥʔ͕ग़ͯ͠·͏ DMPKVSFTQFDʹΑͬͯղܾ͞Ε͍ͯ͘ݟࠐΈ ʙ
‣ Τϥʔͷใྔ͕ଟ͗ͯ͢Կ͕ॏཁͳͷ͔͔Γʹ͍͘ ಛʹTQFDͷΤϥʔใ͕େʹͳΓ͕ͪ ‣ ॲཧܥଆͷݺͼग़͕͠ελοΫτϨʔεʹฆΕࠐΜͰ͠·͏ ॲཧܥ͕Ͳ͜ͰΤϥʔΛݟ͚͔ͭͨॏཁͰͳ͍
Τϥʔͷཧ ‣ ͲͷϑΣʔζͰग़ͨΤϥʔ͔ΛྨɺϑΣʔζຖʹ༗༻ͳใΛ࣋ͨͤΔ ϑΣʔζɿϦʔυ࣌ɺϚΫϩߏจνΣοΫ࣌ɺϚΫϩల։࣌ɺίϯύΠϧ ࣌ɺ࣮ߦ࣌ɺ݁Ռग़ྗ࣌ ‣ CompilerException ࣮ߦ࣌ΑΓલͷϑΣʔζͷΤϥʔ ͔Βex-data
ͰҎԼͷใΛڞ௨ͯ͠औಘՄೳʹ :clojure.error/phase Τϥʔ͕ൃੜͨ͠ϑΣʔζ :clojure.error/source Τϥʔ͕ൃੜͨ͠ιʔεϑΝΠϧ :clojure.error/line Τϥʔ͕ൃੜͨ͠ιʔεϑΝΠϧͷߦ൪߸ :clojure.error/column Τϥʔ͕ൃੜͨ͠ιʔεϑΝΠϧͷܻ :clojure.error/symbol ΤϥʔͷݪҼʹͳͬͨγϯϘϧ :clojure.error/class ΤϥʔΫϥε໊ :clojure.error/cause Τϥʔϝοηʔδ :clojure.error/spec εϖοΫΤϥʔ ͋Ε
ॏཁͷ͍ใͷݮ εϖοΫΤϥʔ σʔλ ਓؒʹͱͬͯ༗ӹͰͳ͍ ใදࣔ͠ͳ͍Α͏ʹ ͷϚΫϩߏจΤϥʔ ͷϚΫϩߏจΤϥʔ
ΤϥʔՕॴͷࢦఠ ‣ ϦʔυΤϥʔ ‣ ίϯύΠϧΤϥʔ ʁ ຊʹΓ͍ͨͷॲཧܥ͕ͲͷॲཧதʹΤϥʔΛ ݟ͚͔ͭͨͰͳ͘ίʔυͷͲ͜ʹΤϥʔ͕͔͋ͬͨ ʁ
ex-triageex-str ‣ ࣮ߦ࣌ΤϥʔҰൠʹ+BWBͷྫ֎ɾΤϥʔͷՄೳੑ +BWBͷྫ֎ɾΤϥʔͷதʹɺ$MPKVSFʹ߹ͷ͍͍ଐੑΛ ࣋ͨͳ͍ͷ͋Δ ‣ ex-triage ͋ΒΏΔΤϥʔΛ౷ҰతͳϑΥʔϚοτͷϚοϓσʔλʹ
ม͢Δ ϦϞʔτͰͭͳ͕ΔڥͰΤϥʔใΛΓͱΓ͢ΔϑΥʔ Ϛοτͱͯ͑͠Δ ‣ ex-str ex-triageΛจࣈྻԽ͢Δඪ४తͳํ๏
EBUBGZ ‣ DMPKVSFEBUBGZ ‣ ৽͍͠ϓϩτίϧDatafiableͱNavigable͕Ճ ‣ ͲͪΒͷϓϩτίϧৄࡉͳઆ໌·ͩͳ͍ ‣ جຊతʹΦϒδΣΫτΛʮσʔλԽʯ͢ΔͨΊͷͷ
EBUBGZ ‣ :extend-via-metadataʹ͍ͭͯޙड़ (defprotocol Datafiable :extend-via-metadata true (datafy [o] “return
a representation of o as data”)) (defprotocol Navigable :extend-via-metadata true (nav [coll k v] "return v in the context of coll and k (a key/index or nil)"))
EBUBGZͷ͍ํ ‣ ݱ࣌ͰɺΫϥεྫ֎গͷ࣮͕ఏڙ͞Ε͍ͯΔͷΈ (require ‘[clojure.datafy :as datafy]) (datafy/datafy java.io.Closeable) ;=>
{:bases #{java.lang.AutoCloseable}, :flags #{:interface :public :abstract}, :members {close [#clojure.reflect.Method{…}, :name java.io.Closeable} (datafy/datafy (ex-info “error” {})) ;=> {:cause “error!!”, :data {:value 42}, :trace [[user$eval199 invokeStatic "NO_SOURCE_FILE" 1] [user$eval199 invoke "NO_SOURCE_FILE" 1] [clojure.lang.Compiler eval "Compiler.java" 7176] …] :via [{:type clojure.lang.ExceptionInfo, :message “error!!", :data {:value 42}, :at [user$eval199 invokeStatic "NO_SOURCE_FILE" 1]}]}
EBUBGZͷิ ‣ ʮσʔλԽʯͱ͍͏ͱ༻్͕෯͘ײ͡Δ͕ɺ Throwable->mapͷΑ͏ʹɺΦϒδΣΫτͷΠϯεϖΫ γϣϯ༻్͕ϝΠϯʹࢥ͑Δ ݸਓతײ SFJGZͰ࡞ͬͨΦϒδΣΫτ͕෦తʹอ࣋͢Δใͷެ։
ಛʹεϖοΫΦϒδΣΫτͷΠϯεϖΫγϣϯɺτϥόʔε ‣ ΦϒδΣΫτͷγϦΞϥΠζͷ༻్͋·Γఆ͞Εͯ ͍ͳ͍͜ͱ͕ެࣜʹ΄ͷΊ͔͞Ε͍ͯΔ
ϝλσʔλʹΑΔϓϩτίϧͷ֦ு ‣ EBUBGZಋೖͷաఔͰऔΓೖΕΒΕͨ ‣ ͜Ε·ͰϓϩτίϧϨίʔυσʔλܕͰ࣮͢Δ ͔ɺextend-protocolextend-typeͰ֦ு͢Δ͔ͩͬͨ ‣ ͔ΒϝλσʔλʹΑΓϓϩτίϧΛ֦ுͰ͖ΔΑ͏ ʹͳΓɺΦϒδΣΫτຖͷଟ૬తͳৼΔ͍ΛఆٛՄೳʹ
ैདྷͷϓϩτίϧͷར༻๏ (defprotocol P (m [this])) ;; ϨίʔυʹΑΔ࣮ (defrecord R []
P (m [this] 42)) (m (->R)) ;=> 42 ;; extend-protocol/extend-typeʹΑΔ֦ு (extend-protocol P Long (m [this] this)) (m 101) ;=> 101
ϝλσʔλʹΑΔ֦ு ‣ :extend-via-metadata true Λࢦఆ͢Δͱɺϓϩτίϧ͕ ϝλσʔλʹΑΓ֦ுՄೳʹ (defprotocol P :extend-via-metadata true
(m [this])) (def obj (with-meta {:x 42} {`m (fn [this] (:x this))})) (m obj) ;=> 42 (m (with-meta obj {`m (fn [this] 43)})) ;=> 43
ϝλσʔλʹΑΔ֦ுͷҙ ‣ ϓϩτίϧͷఆٛ࣌ʹ:extend-via-metadataͷࢦఆ͕ ͳ͚ΕϝλσʔλʹΑΔ֦ு༗ޮʹͳΒͳ͍ ‣ ϓϩτίϧͷ࣮ͷ༏ઌॱҐ ϨίʔυɾσʔλܕʹΑΔ࣮ ϝλσʔλʹΑΔ֦ு
extend-protocolextend-typeʹΑΔ֦ு ‣ ϝλσʔλʹΑΔ֦ுΛ༗ޮʹͨ͠ϓϩτίϧͷϝιου ݺͼग़͠ੑೳ໘ͰͷΦʔόʔϔου͕͋Δ
QSFQM ‣ lQSPHSBNNBCMFz3&1- ‣ ৽͍͠ετϦʔϜϕʔε3&1- ‣ $MPKVSFϑΥʔϜΛೖྗʹͱΓɺߏԽ͞Εͨग़ྗΛฦ͢ ‣ Ͱಋೖ͞Εͨιέοταʔό͔Βར༻͠ɺϦϞʔτ 3&1-Λ࣮ݱ͢ΔͨΊʹ͏͜ͱΛఆ͞Ε͍ͯΔ
‣ 6OSFQMϓϩτίϧʹྨࣅ͢Δ෦͕ଟ͍ IUUQTHJUIVCDPN6OSFQMVOSFQM
QSFQMͷ͍ํ ‣ ιέοταʔόͷىಈ ‣ ΫϥΠΞϯτ͔Βͷଓ ‣ $ clojure -J-Dclojure.server.repl="{:port 5555
:accept clojure.core.server/io-prepl}" $ nc localhost 5555 (map inc [1 2 3]) {:tag :ret, :val "(2 3 4)", :ns "user", :ms 19, :form "(map inc [1 2 3])”} (dotimes [i 3] (Thread/sleep 1000) (println i)) {:tag :out, :val "0\n"} {:tag :out, :val "1\n"} {:tag :out, :val "2\n"} {:tag :ret, :val "nil", :ns "user", :ms 3214, :form "(dotimes [i 3] (Thread/sleep 1000) (println i))”}
ैདྷͷ3&1-ͷ ‣ ैདྷͷ3&1-Λιέοταʔό͔Β͏͜ͱΛߟ͑Δͱʮධ Ձ݁Ռ͔͠ฦͤͳ͍ʯ͜ͱͷ͕خ͘͠ͳ͍͜ͱ ‣ ͨͱ͑ʜ ධՁ͍ͯ͠Δ్தͰग़ྗ݁ՌɺධՁ݁ՌҎ֎ͷͷΛฦ͢ ͷ͕͍͠
ྫ֎ɾΤϥʔධՁ݁Ռͱผʹѻ͍͍ͨɺΫϥΠΞϯτଆ ͰৄࡉͳใΛࣗ༝ʹऔಘ͍ͨ͠ ͍γʔέϯεͷলུදࣔɾల։ɺϚϧνϝσ ΟΞ ը૾ ͷ 3&1-ͰͷදࣔɺΫϥΠΞϯτͷϦονͳػೳͷఏڙ ‣ ݱঢ়Ͱɺ͜ΕΒͷO3&1-Ͱղܾ͞Ε͍ͯΔ
O3&1-ͱͷҧ͍ ‣ O3&1-ೖྗߏԽ͞Εͨϝοηʔδ ϋϯυϥʹϛυϧΣΞΛՃ͢Δ͜ͱͰॲཧͰ͖Δϝο ηʔδͷछྨΛ૿͢Έ O3&1-αʔόىಈޙʹػೳΛՃ͢Δͷ͍͠ ‣ QSFQMͷೖྗ୯ͳΔϑΥʔϜ
ػೳΛՃ͠Α͏ͱࢥ͑ͦͷػೳΛ࣮ݱ͢ΔϑΥʔϜΛ ྲྀ͠ࠐΉ͚ͩ ΫϥΠΞϯτଆ͔ΒඞཁͳػೳΛ͖ͳΑ͏ʹՃͰ͖Δ l3&1-UIFVMUJNBUFDPOUFOUOFHPUJBUJPOQSPUPDPMz DG6OSFQMCMPC
͞·͟·ͳQSFQM࣮ ‣ QSFQMɿඪ४ͷQSFQM ‣ JPQSFQM ඪ४ೖग़ྗܦ༝ͰΓͱΓ͢Δ࣮ ιέοταʔό͔Βݺͼग़͞ΕΔ͜ͱΛఆ ‣
SFNPUFQSFQM ϦϞʔτͰͪड͚ΔQSFQMαʔόʹଓ͢Δ࣮
UBQ ‣ άϩʔόϧʹར༻ՄೳͳγϯϓϧͳΠϕϯτγεςϜ ‣ σόοάϩΪϯάͷ༻్Λҙਤ͍ͯ͠Δ ‣ QSFQMಋೖʹͬͯऔΓೖΕΒΕͨ
UBQͷ͍ํ ‣ add-tapremove-tapͰϋϯυϥؔΛొɾআ ‣ tap>ͰΛૹ৴ɺͯ͢ͷϋϯυϥؔͰ͕ॲཧ͞ΕΔ (defn log [x] (println “tapped
value: “ x)) (add-tap log) (tap> 1) ;; tapped value: 1 ;=> 1 (tap> 2) ;; tapped value: 2 ;=> 2 (remove-tap log) (tap> 3) ;=> 3
QSFQMͰͷUBQ ‣ UBQQSFQM্Ͱಛผʹॲཧ͞ΕΔ ‣ QSFQM্ͰσόοάϩΪϯάɺϓϩάϨεͷදࣔʹར༻ Ͱ͖Δ $ nc localhost 5555
(dotimes [i 5] (Thread/sleep 1000) (tap> i)) {:tag :tap, :val "0"} {:tag :tap, :val "1"} {:tag :tap, :val "2"} {:tag :tap, :val "3"} {:tag :tap, :val "4"} {:tag :ret, :val "nil", :ns "user", :ms 5216, :form "(dotimes [i 5] (Thread/sleep 1000) (tap> i))"}
ͦͷଞͷมߋ ‣ +7.ͷ࠷খαϙʔτόʔδϣϯมߋ ࠷খαϙʔτόʔδϣϯ͕͔Βʹ ‣ SFRVJSJOHSFTPMWF ʮ࣮ߦ࣌ʹSFRVJSFͯ͠ݺͼग़͠ʯ͕؆୯ʹॻ͚ΔΑ͏ʹ ‣
SFBE TUSJOH Ϧʔυ݁Ռͱͯ͠ݩͷจࣈྻදݱҰॹʹऔಘͰ͖Δ
·ͱΊ ‣ $MPKVSFΤϥʔϝοηʔδͷվળͱQSFQMͷՃΛத ৺ͱͨ͠มߋ ‣ ݸʑͷಠཱͨ͠ػೳͱ͍͏ΑΓɺϦονͳ։ൃڥΛ։ൃ ͢ΔͨΊͷΈΛఏڙ͢ΔͨΊͷϦϦʔεͱ͍͏ҹ ‣ 4UBZUVOFE
ࢀߟจݙ ‣ DIBOHFTNE IUUQTHJUIVCDPNDMPKVSFDMPKVSFCMPCNBTUFSDIBOHFTNE ‣ 6OSFQM IUUQTHJUIVCDPN6OSFQMVOSFQM