Clojure 1.9 概要紹介

2017/09/25のLisp meetup #56の発表資料です。

Transcript

1. $MPKVSF֓ཁ঺հ
   -JTQNFFUVQPO
   !BUIPT
   

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2. ֓ཁ
   ‣ ͷϦϦʔε͕ؒۙ
   CFUB͕ઌिΑ͏΍͘ϦϦʔε
   DGϦϦʔε೥݄ BMQIBϦϦʔε೥݄
   དྷ݄ͷ$POKʹ߹ΘͤͯϦϦʔεͷՄೳੑ΋
   ‣ pOBMϦϦʔεʹ޲͚ͯͷओཁͳมߋΛ͓͞Β͍
   

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3. $MPKVSFͷओཁͳมߋ
   ‣ DMPKVSFTQFD
   ‣ ໊લۭ͖ؒͭϚοϓ OBNFTQBDFENBQT
   
   ‣ /B/*OG*OGͷ৽͍͠֎෦දݱ
   

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4. DMPKVSFTQFD
   ‣ ड़ޠΛϕʔεʹͨ͠σʔλ࢓༷ͷهड़"1*
   ৄࡉ͸ʮDMPKVSFTQFDʯͰݕࡧ
   ‣ ҎԼͷ༻్ʹ࢖͑Δ
   υΩϡϝϯςʔγϣϯ
   όϦσʔγϣϯ
   ౷ҰతͳΤϥʔϨϙʔτ
   ϓϩύςΟϕʔεςετ
   4ࣜͷߏจղੳ
   ‣ ·ͩΞϧϑΝѻ͍
   TQFDBMQIBͱͯ͠$MPKVSFຊମͱ͸ಠཱʹ։ൃ͞Ε͍ͯ͘༧ఆ
   

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5. $MPKVSF͔Βͷߏ੒
   ‣ $MPKVSF͕TQFDBMQIBͱDPSFTQFDTBMQIBʹґଘ͢Δߏ੒ʹ
   ‣ TQFDBMQIB
   TQFDͷػೳఆٛ
   ‣ DPSFTQFDTBMQIB
   $MPKVSFͷίΞϥΠϒϥϦͷεϖοΫఆٛ
   $MPKVSF
   TQFDBMQIB
   DPSFTQFDT
   BMQIB
   

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6. DMKίϚϯυ
   ‣ ͜Ε·Ͱͷ$MPKVSF͸KBSͭΛμ΢ϯϩʔυͯ͘͠Ε͹࢖͑
   ͕ͨɺ͔Β͸TQFDBMQIBͱDPSFTQFDBMQIBʹґଘ
   ‣ ґଘϥΠϒϥϦΛղܾͯ͠$MPKVSFΛ࢖͑Δঢ়ଶʹ͢Δख
   ஈͱͯ͠DMKίϚϯυ͕༻ҙ͞Εͨ
   ‣ “brew install clojure”Ͱ$MPKVSF͕࢖͑ΔΑ͏ʹ
   ଞͷύοέʔδϚωʔδϟʹ΋ਵ࣌௥Ճ͞ΕΔ༧ఆ
   

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7. TQFDϕʔεͷϚΫϩߏจνΣοΫ
   ‣ ϚΫϩʹରͯ͠εϖοΫΛఆ͓ٛͯ͘͠ͱɺίϯύΠϥ͕
   ࣗಈతʹߏจ͕εϖοΫʹ߹͍ͬͯΔ͔ΛνΣοΫ
   ‣ ౷Ұతͳํ๏ͰΤϥʔΛฦͯ͘͠ΕΔ
   

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8. ʲએ఻ʳ1JOQPJOUFS
   ‣ ੿࡞ͷεϖοΫΤϥʔϨϙʔλ1JOQPJOUFSͰ͸ɺεϖοΫ
   ΤϥʔΛ෼͔Γ΍͘͢දࣔͯ͘͠ΕΔʂ ϋΠϥΠτ͖ͭ
   
   

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9. EPDͷTQFDαϙʔτ
   

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10. ड़ޠؔ਺ͷ֦ॆ
    ‣ boolean?
    ‣ int? pos-int? neg-int? nat-int?
    ‣ double? bigdec?
    ‣ ident? simple-ident? qualified-ident?
    ‣ simple-symbol? qualified-symbol?
    ‣ simple-keyword? qualified-keyword?
    ‣ bytes?
    ‣ indexed?
    ‣ uuid? uri?
    ‣ seqable?
    ‣ any?
    

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11. ໊લۭ͖ؒͭϚοϓ
    ‣ TQFD͸໊લۭ͖ؒͭͷΩʔϫʔυΛଟ༻
    ϚοϓͷΩʔͱͯ͠࢖͏ࡍʹɺҰҙͷҙຯΛ࣋ͨͤΔͨΊ
    ‣ ͢΂ͯͷΩʔ͕ಉ໊͡લۭؒͰम০͞Ε͍ͯΔ৔߹ͷলུه๏
    #:foo{:a 1, :b 2}
    (require ‘[foo.core :as foo])
    #::foo{:a 1, :b 2}
    #::{:a 1, :b 2}
    {:foo/a 1, :foo/b 2}
    {:foo.core/a 1,
    :foo.core/b 2}
    {:user/a 1, :user/b 2}
    

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12. ໊લۭ͖ؒͭϚοϓͷ෼഑ଋറ
    ‣ Ϛοϓͷ෼഑ଋറͰ΋໊લۭ͖ؒͭͷΩʔϫʔυΛѻ͍΍
    ͍͢Α͏ʹ
    

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13. /B/*OG*OGͷ৽͍͠֎෦දݱ
    ‣ ৽ͨʹ##ͱ͍͏ϦʔμʔϚΫϩ͕௥Ճ͞Εͨ
    /B/##NaN
    *OpOJUZ##Inf
    *OpOJUZ##-Inf
    ‣ ೥ʹఏҊ͞Εɺ೥ӽ͠ͰΑ͏΍͘࠾୒
    

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14. ͦͷଞͷมߋ
    ‣ *reader-resolver*ͰγϯϘϧ΍Ωʔϫʔυͷղܾͷ
    ࢓ํ͕QMVHHBCMFʹ
    ‣ Instϓϩτίϧͷ௥Ճ
    ‣ swap-vals! reset-vals!
    ‣ halt-whenτϥϯεσϡʔα
    

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15. ·ͱΊ
    ‣ $MPKVSFϦϦʔε͕ؒۙ
    ‣ ͸DMPKVSFTQFDΛத৺ͱͨ͠มߋ͕੝Γࠐ·Εͨ
    ‣ TQFDࣗମ͸·ͩΞϧϑΝѻ͍ͷ·· ͳͷͰɺ࢓༷มߋ΋
    ͋Γ͏Δ
    ͕ͩɺ͕Ұ୴ϦϦʔε͞ΕΕ͹ϓϩμΫτ౳
    Ͱຊ֨తʹ࢖ΘΕ࢝ΊΔ͜ͱ͕༧૝͞ΕΔ
    

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16. ࢀߟจݙ
    ‣ DIBOHFTNE
    IUUQTHJUIVCDPNDMPKVSFDMPKVSFCMPCNBTUFSDIBOHFTNEDIBOHFTUPDMPKVSFJOWFSTJPO
    ‣ "CPVUTQFD
    IUUQTDMPKVSFPSHBCPVUTQFD
    ‣ 3FBEQSJOUSPVOEUSJQGPS*OpOJUZBOE/B/
    IUUQTEFWDMPKVSFPSHKJSBCSPXTF$-+
    

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