Hello, Swift Concurrency world.の振り返り / Looking back on Hello, Swift Concurrency world.

This is the continuation of "Hello, SwiftConcurrency world." at iOSDC Japan 2021.

Transcript

1. -PPLJOHCBDLBUJ04%$+BQBO
   

   TIJ[
   )FMMP 4XJGU$PODVSSFODZXPSME
   

   ͷৼΓฦΓЋ
   

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2. ΞδΣϯμ
   w4XJGU$PODVSSFODZͱߏ଄Խϓϩάϥϛϯά
   wσʔλڝ߹๷ࢭͷஈ֊తಋೖ
   

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3. 4XJGU$PODVSSFODZͱߏ଄Խϓϩάϥϛϯά
   

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4. ߏ଄Խϓϩάϥϛϯά
   IUUQTFXPSETKQXߏ଄ԽϓϩάϥϛϯάIUNM
   ίϯϐϡʔλϓϩάϥϜͷ։ൃ΍ཧղɺमਖ਼Λԁ׈ʹߦ͑Δ
   Α͏ɺϓϩάϥϜΛ੔ཧ͞Εͨߏ଄ͷ૊Έ߹ΘͤʹΑͬͯߏ
   ੒͢Δ͜ͱɻҰൠతʹ͸
   w ॱ઀ هड़ͨ͠ॱ൪ʹ࣮ߦ͢Δ
   
   w ෼ذ ࢦఆ͞Εͨ৚݅Λຬ͔ͨ͢൱͔Ͱࢬ෼͔Ε͢Δ
   
   w ൓෮ ࢦఆ͞Εͨ৚͕݅੒Γཱͭؒ܁Γฦ͢
   
   ͷࡾͭͷ੍ޚߏ଄ʹΑͬͯॲཧͷྲྀΕΛهड़͢Δ͜ͱͰ͋Δ
   ͱཧղ͞Ε͍ͯΔɻ
   

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5. ؔ਺Λൈ͚ͨޙ
   Ͳ͔͜ͷ࣌఺Ͱ࣮ߦ͞ΕΔ
   ݁ՌΛड͚औΔλΠϛϯά࣍ୈ
   
   ίʔϧόοΫܗࣜͷඇಉظॲཧ
   ίʔϧόοΫ࣮ߦલʹείʔϓΛൈ͚Δ
   

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6. BTZODBXBJU
   ݁ՌΛ଴ͬͯ࣍ʹਐΉ
   ্͔ΒԼʹॲཧ͕࣮ߦ͞ΕΔ
   ͜ͷείʔϓ಺Ͱશͯͷॲཧ͕׬݁͢Δ
   

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7. GPSϧʔϓ "TZOD4FRVFODF
   
   IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOGPVOEBUJPOVSMMJOFT
   

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8. NFUBEBUB
   5BTLUSFF
   GFUDI0OF5IVNCOBJM
   EBUB
   NFUBEBUB
   5BTLUSFF
   GFUDI0OF5IVNCOBJM
   EBUB NFUBEBUB
   5BTLUSFF
   GFUDI0OF5IVNCOBJM
   EBUB
   NFUBEBUB
   5BTLUSFF
   GFUDI0OF5IVNCOBJM
   EBUB
   4USVDUVSFE$PODVSSFODZ
   ໭Γ஋͸<6**NBHF>
   

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9. ߏ଄Խϓϩάϥϛϯά
   IUUQTFXPSETKQXߏ଄ԽϓϩάϥϛϯάIUNM
   ίϯϐϡʔλϓϩάϥϜͷ։ൃ΍ཧղɺमਖ਼Λԁ׈ʹߦ͑Δ
   Α͏ɺϓϩάϥϜΛ੔ཧ͞Εͨߏ଄ͷ૊Έ߹ΘͤʹΑͬͯߏ
   ੒͢Δ͜ͱɻҰൠతʹ͸
   w ॱ઀ هड़ͨ͠ॱ൪ʹ࣮ߦ͢Δ
   
   w ෼ذ ࢦఆ͞Εͨ৚݅Λຬ͔ͨ͢൱͔Ͱࢬ෼͔Ε͢Δ
   
   w ൓෮ ࢦఆ͞Εͨ৚͕݅੒Γཱͭؒ܁Γฦ͢
   
   ͷࡾͭͷ੍ޚߏ଄ʹΑͬͯॲཧͷྲྀΕΛهड़͢Δ͜ͱͰ͋Δ
   ͱཧղ͞Ε͍ͯΔɻ
   

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10. σʔλڝ߹๷ࢭͷஈ֊తಋೖ
    

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11. σʔλڝ߹ͱ͸ʁ
    wσʔλڝ߹ͱ͸ɺϓϩάϥϜ಺Ͱڞ༗͞ΕͨՄมঢ়ଶ TIBSFE
    NVUBCMFTUBUF
    ʹෳ਺ͷεϨου͔Βॻ͖ࠐΈΞΫηεΛؚ
    Μͩಉ࣌ΞΫηε͕ى͖ͨ݁ՌɺऔΓग़݁͢Ռ͕λΠϛϯά࣍
    ୈͰมΘͬͯ͠·͏ݱ৅
    

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12. "DUPS
    "DUPST
    w ϓϩάϥϜ಺Ͱڞ༗͞ΕͨՄมঢ়ଶ΁ɺෳ਺ͷεϨου͔Β
    ͷಉ࣌ΞΫηεΛ๷͙ɺࢀরܕͷσʔλߏ଄
    w TUSVDUɺFOVNɺDMBTTʹ͍ۙػೳΛ͍࣋ͬͯΔ
    

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13. 4XJGU$PODVSSFODZ3PBENBQ
    

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14. ஈ֊ͷ"DUPSʹΑΔσʔλڝ߹๷ࢭ
    wୈஈ֊
    

    "DUPSΛར༻͍ͯ͠Δ෦෼Ͱσʔλڝ߹Λ๷͙
    

    ྫάϩʔόϧม਺ΛHMPCBMBDUPSʹ͢ΔɻDMBTTΛBDUPSʹม׵͢Δ
    wୈஈ֊
    

    άϩʔόϧม਺͸HMPCBMBDUPSͰकΒͳ͚Ε͹ͳΒͳ͍ ΋͘͠͸໌
    ࣔతʹνΣοΫର৅֎ʹ͠ͳ͚Ε͹ͳΒͳ͍
    
    

    DMBTT΍DMBTTΛ಺෦ʹؚΜͩܕ͸σϑΥϧτͰಉ࣌ฒߦॲཧؒͰ࢖
    ༻Ͱ͖ͳ͘ͳΔ
    4XJGU$PODVSSFODZ3PBENBQ
    ୈஈ֊ͰTPVSDFCSFBLJOHΛى͜͢Մೳੑ
    

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15. ͍ͭʁ
    wݴޠͷϞʔυ όʔδϣϯ
    ͰมΘΔ
    w4XJGUϢʔβ͕BTZODBXBJU΍"DUPSʹ׳ΕΔ·Ͱ࣌ؒΛ༩͑Δ
    4XJGU$PODVSSFODZ3PBENBQ
    4XJGUʜͷ࿩
    

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16. ஈ֊త4FOEBCMFνΣοΫ ·ͩ1JUDI
    
    IUUQTHJUIVCDPN%PVH(SFHPSTXJGUFWPMVUJPOCMPCTFOEBCMFTUBHJOHQSPQPTBMTOOOOTFOEBCMFTUBHJOHNE
    QJUDI͋Γ
    

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17. 4FOEBCMF
    w ಉ࣌ฒߦॲཧؒͰڞ༗ͯ͠΋҆શͳܕΛࣔ͢ϓϩτίϧ
    

    !VODIFDLFEΛ෇͚ΔͱνΣοΫΛআ֎Ͱ͖Δ
    wؔ਺ܕ͸ϓϩτίϧʹ४ڌͰ͖ͳ͍ͨΊ!4FOEBCMFͱ͍͏ଐ
    ੑΛ࢖༻
    w͜Εʹ४ڌ͠ͳ͍ͱίϯύΠϧΤϥʔʹͳΔ৔߹͕͋Δ
    5BTLJOJU΍5BTLEFUBDIFEͷҾ਺ͷΫϩʔδϟ಺Ͱ࢖͏ܕͳ
    Ͳ
    
    

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18. 4FOEBCMFνΣοΫͷ໰୊఺
    w Ұؾʹ4FOEBCMFνΣοΫΛಋೖͯ͠͠·͏ͱɺ$PODVSSFODZ
    ʹରԠ͍ͯ͠ͳ͍Ϟδϡʔϧͷܕ͕࢖͑ͳ͘ͳͬͯ͠·͍ɺ։
    ൃ͕ਐ·ͳ͘ͳͬͯ͠·͏Մೳੑ΋
    

    ͜͜Ͱݴ͏Ϟδϡʔϧͱ͸ɺࣗ਎ͷϓϩδΣΫτ಺ͷଞͷν
    ʔϜ͕։ൃ͍ͯ͠ΔϞδϡʔϧ΍ར༻͍ͯ͠ΔϥΠϒϥϦ಺ͷ
    ϞδϡʔϧΛࢦ͠·͢
    
    

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19. 4FOEBCMFνΣοΫͷ໰୊఺
    Ϟδϡʔϧ"͕$PODVSSFODZʹରԠ͠ͳ͍ͱܕ͕࢖͑ͳ͍
    Ϟδϡʔϧ"
    $PODVSSFODZରԠલ
    Ϟδϡʔϧ#
    

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20. 4FOEBCMFνΣοΫͷ໰୊఺
    !VODIFDLFEͰճආͰ͖Δ
    Ϟδϡʔϧ" Ϟδϡʔϧ#
    

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21. 4FOEBCMFνΣοΫͷ໰୊఺
    4FOEBCMFνΣοΫ͠ͳ͍ͷͰσʔλڝ߹Λى͜͢ϦεΫ͕͋Δ
    

    ؾ͕͖ͭʹ͍͘
    Ϟδϡʔϧ" Ϟδϡʔϧ#
    

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22. طଘΫϥΠΞϯτ΁ͷӨڹ
    CPEZ͸ಉ࣌ฒߦʹ࣮ߦ͞ΕΔՄೳੑ͕͋ΔͨΊˏ4FOEBCMF͕ඞཁ
    

    CPEZͰੜ੒͞ΕΔ໭Γ஋ͷܕ΋4FOEBCMF͕ඞཁ
    Ϟδϡʔϧ$ $PODVSSFODZରԠલ
    
    Ϟδϡʔϧ$ $PODVSSFODZରԠޙ
    
    

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23. ໰୊5͕4FOEBCMFʹ४ڌ͍ͯ͠ͳ͍
    

    ໰୊CPEZ͕!4FOEBCMFΫϩʔδϟʹม׵Ͱ͖ͳ͍
    طଘΫϥΠΞϯτ΁ͷӨڹ
    Ϟδϡʔϧ%
    Ϟδϡʔϧ$ $PODVSSFODZରԠޙ
    
    

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24. ஈ֊తͳ4FOEBCMFνΣοΫ
    w ঃʑʹ4FOEBCMFνΣοΫΛ޿͛ΔڧΊΔΑ͏ʹ͢Δ
    w Ϟδϡʔϧ୯ҐͰνΣοΫͷ੍ޚΛͰ͖ΔΑ͏ʹ͢Δ
    

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25. ஈ֊తͳ4FOEBCMFνΣοΫ
    w $PODVSSFODZະରԠϞδϡʔϧͷ4FOEBCMFͰ͸ͳ͍ܕ΁ͷν
    ΣοΫΛɺΤϥʔ͔ΒϫʔχϯάʹԼ͛Δɻ΋͘͠͸νΣο
    Ϋ͠ͳ͘͢Δ
    w Ϟδϡʔϧ୯ҐͰͷνΣοΫ੍ޚΛߦ͏ɻ$PODVSSFODZΛద
    ༻͍ͯ͠ΔϞδϡʔϧͱ͍ͯ͠ͳ͍ϞδϡʔϧͰνΣοΫͷํ
    ๏Λ۠ผ͢Δ
    

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26. Ϟδϡʔϧ୯ҐνΣοΫ $PODVSSFODZରԠલ
    
    Ϟδϡʔϧ"ͷܕ͸4FOEBCMFͱਪ࿦͞ΕɺϞδϡʔϧ#಺ͰΤϥʔʹͳΒͳ͍
    ˞σʔλڝ߹͔Βݫ֨ʹ҆શͰ͸ͳ͍
    Ϟδϡʔϧ"
    $PODVSSFODZରԠલ
    Ϟδϡʔϧ#
    

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27. Ϟδϡʔϧ୯ҐͷνΣοΫ $PODVSSFODZରԠޙ
    
    4FOEBCMFͳͷͰΤϥʔʹͳΒͳ͍
    Ϟδϡʔϧ"
    $PODVSSFODZରԠޙ
    
    Ϟδϡʔϧ#
    

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28. OPO4FOEBCMF
    OPO4FOEBCMFͳͷͰΤϥʔ
    Ϟδϡʔϧ"
    $PODVSSFODZରԠޙ
    Ϟδϡʔϧ#
    Ϟδϡʔϧ୯ҐͷνΣοΫ $PODVSSFODZରԠޙ
    
    

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29. Ϟδϡʔϧ΁$PODVSSFODZΛద༻͢Δํ๏
    w 4XJGU9ϞʔυͰίϯύΠϥϑϥά˞Λઃఆ͢Δ
    

    ˞ݱࡏͷ໊લ͸XBSODPODVSSFODZ
    w 4XJGUϞʔυΛઃఆ͢Δ
    

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30. ໰୊5͕4FOEBCMFʹ४ڌ͍ͯ͠ͳ͍
    

    ໰୊CPEZ͕!4FOEBCMFΫϩʔδϟʹม׵Ͱ͖ͳ͍
    طଘΫϥΠΞϯτͷӨڹ
    Ϟδϡʔϧ$ $PODVSSFODZରԠޙ
    
    Ϟδϡʔϧ%
    

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31. ໰୊5͕4FOEBCMFʹ४ڌ͍ͯ͠ͳ͍
    

    4XJGU9Ͱ͸ϫʔχϯάʹͳΔ
    ˞ݱঢ়ϫʔχϯά΋ग़ྗ͞Εͳ͍ͷͰࠓޙมΘΔՄೳੑ͋Γ
    طଘΫϥΠΞϯτ΁ͷӨڹ
    Ϟδϡʔϧ%
    

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32. ίϯςΩετʹ߹Θͤͯ!4FOEBCMFʹ΋OPO!4FOEBCMFʹ΋ͳΔ
    ໰୊CPEZ͕!4FOEBCMFΫϩʔδϟʹม׵Ͱ͖ͳ͍
    

    !VOTBGF4FOEBCMF˞
    طଘΫϥΠΞϯτ΁ͷӨڹ
    Ϟδϡʔϧ$ $PODVSSFODZରԠޙ
    
    ˞໊শʹ͍ͭͯ͸ࠓޙมΘΔՄೳੑ͋Γ
    

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33. !4FOEBCMFͰ͸ͳ͍ͷͰΤϥʔʹͳΒͳ͍
    طଘΫϥΠΞϯτ΁ͷӨڹ
    Ϟδϡʔϧ% $PODVSSFODZରԠલ
    
    

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34. ະରԠͰ΋$PODVSSFODZΛ࢖༻͍ͯ͠Δ৔߹͸
    

    !4FOEBCMFͱͯ͠ѻΘΕΔ
    طଘΫϥΠΞϯτ΁ͷରԠ
    Ϟδϡʔϧ% $PODVSSFODZରԠલ
    
    

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35. ͋ΔϞδϡʔϧͷ4FOEBCMFνΣοΫஈ֊
    w 4XJGU9
    

    $PODVSSFODZ࢖༻෦෼ͷΈ4FOEBCMFνΣοΫΛͯ͠ϫʔχϯά͕ൃੜ͢Δ
    

    !VOTBGF4FOEBCMF͸$PODVSSFODZΛ࢖༻͍ͯ͠Δ෦෼Ͱ͸!4FOEBCMFɺͦ
    ΕҎ֎͸OPO!4FOEBCMFͱͯ͠ѻΘΕΔ
    w 4XJGU9ίϯύΠϥϑϥά
    

    ϞδϡʔϧશମͰ4FOEBCMFνΣοΫΛͯ͠ϫʔχϯά͕ൃੜ͢Δ
    

    !VOTBGF4FOEBCMF͸ৗʹ!4FOEBCMFͱͯ͠ѻΘΕΔ
    w 4XJGU
    

    ϞδϡʔϧશମͰ4FOEBCMFνΣοΫΛͯ͠Τϥʔ͕ൃੜ͢Δ
    

    ͨͩ͠ɺ$PODVSSFODZະରԠͷϞδϡʔϧͷܕ͸ϫʔχϯά͕ൃੜ͢Δ
    

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36. ஈ֊తʹಋೖ͢Δ͜ͱͰ
    w $PODVSSFODZະରԠͳ΋ͷ͕։ൃͷअຐΛ͠ͳ͍
    w $PODVSSFODZରԠޙ͸ద੾ʹνΣοΫΛͯ͘͠ΕΔ
    w ·ͣ4XJGU9ͰϫʔχϯάΛग़ྗ͢Δ͜ͱͰɺ4XJGUͰى͜ɹ
    ΔΤϥʔʹඋ͑Δ͜ͱ͕Ͱ͖Δ
    

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37. ຊ೔ͷ·ͱΊ
    w 4XJGU$PODVSSFODZ͸ߏ଄Խϓϩάϥϛϯά͕ҙࣝ͞Ε͍ͯΔ
    w σʔλڝ߹ͷνΣοΫʹΑͬͯTPVSDFCSFBLJOH͕ى͜ΔՄೳ
    ੑ͕ࣔࠦ͞Ε͍ͯΔ͕ɺݴޠͷόʔδϣϯ΍ϑϥάͷ༗ແʹΑ
    ͬͯঃʑʹରԠ͍͚ͯ͠ΔΑ͏ͳ࢓૊Έ͕४උ͞Ε͍ͯΔ ·ͩ
    1JUDIஈ֊
    
    w σʔλڝ߹Λى͜͢Մೳੑ͕͋Δίʔυ͸কདྷతʹΤϥʔʹͳ
    ΔՄೳੑ͕͋ΔͷͰɺࠓ͔ΒҙࣝΛ͢Δඞཁ͕͋Γͦ͏ άϩ
    ʔόϧม਺΍DMBTTΛ࢖͍ͬͯΔՕॴͳͲ
    
    

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38. ͋Γ͕ͱ͏͍͟͝·ͨ͠
    

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39. ஈ֊త4FOEBCMFνΣοΫ 1JUDI
    
    ௥ه
    IUUQTHJTUHJUIVCDPNCFDDBEBYDDEFBCBFGDF
    

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40. جຊతʹ΍Γ͍ͨ͜ͱ͸มΘΒͳ͍
    

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41. TUSJDUDPODVSSFODZ
    w લճͷXBSODPODVSSFODZͱಉ͡
    w 4XJGU9όʔδϣϯͰίϯύΠϥϑϥάʹࢦఆ͢Δͱɺ
    4FOEBCMFνΣοΫ͸ΤϥʔͰ͸ͳ͘શͯܯࠂʹͳΔ
    

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42. !QSFEJDBUF$PODVSSFODZ
    w ֎෦͔Βར༻͞ΕΔϥΠϒϥϦ΍ϞδϡʔϧͰ4XJGU
    $PODVSSFODZΛ࢖༻͍ͨ͠৔߹ʹɺ4FOEBCMFະରԠͷϞδϡ
    ʔϧͰ࢖༻͢Δࡍͷʮޓ׵ϞʔυʯΛఏڙ͢Δ
    w 4XJGU9ܥͷ৔߹ɺ͍͔ͭ͘ͷ4FOEBCMFνΣοΫΛ཈੍͢Δ
    w 4FOEBCMFະରԠͷϞδϡʔϧͰ࢖༻͢Δ৔߹͸4FOEBCMFͱ
    Έͳ͞Εͳ͍ 4FOEBCMF͕એݴ͔Βফ͑Δ
    
    

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43. !4FOEBCMFJNQPSU
    w 4FOEBCMFະରԠͷϥΠϒϥϦ΍Ϟδϡʔϧͷܕ΍એݴΛ
    JNQPSUͯ͠4XJGU$PODVSSFODZͰ࢖༻͍ͨ͠৔߹ʹ࢖༻Ͱ͖
    Δ
    w JNQPSUͨ͠Ϟδϡʔϧ͕4FOEBCMFະରԠͷ৔߹͸ɺ
    4FOEBCMFνΣοΫΛ཈͑Δ Τϥʔʹ͠ͳ͍
    
    w JNQPSUͨ͠Ϟδϡʔϧ͕4FOEBCMFʹରԠ͢Δͱɺ4FOEBCMF
    νΣοΫ͕͞ΕΔΑ͏ʹͳΔ
    

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44. 0CKFDUJWF$એݴͷ4FOEBCMF
    w 0CKFDUJWF$͔ΒJNQPSUͨ͠ܕ͕4FOEBCMF͔OPO4FOEBCMF
    Ͱ͸ͳ͍͔ΛϔομϑΝΠϧͰ໌ࣔతʹࢦఆ͢Δ
    w TXJGU@BUUS l!4FOEBCMF
    
    

    4XJGU͸ແ৚݅ʹ׬શͳ4FOEBCMF΁ͷ४ڌΛ߹੒͢Δ
    w ҉໧తʹTXJGU@BUUS l!4FOEBCMFz
    ͕෇༩͞ΕΔ
    

    BTZODʹม׵͞ΕΔϝιουͷҾ਺ͷDPNQMFUJPO)BOEMFSͷϒϩοΫ
    

    FOVN@FYUFOTJCJMJUZ /4@&/6.
    OT@FSSPS@EPNBJO /4@&3303
    
    fl
    BH@FOVN /4@015*0/4
    TXJGU@XSBQQFS /4@5:1&%@&/6.
    
    

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45. w TXJGU@BUUS l!@OPO4FOEBCMF
    
    

    TXJGU@BUUS l!4FOEBCMF
    ͕࢖͑ΔॴͰ࢖͑Δ
    

    ಉ͡એݴ΍ܕʹ෇͍ͨTXJGU@BUUS l!4FOEBCMF
    ͸ແࢹ͞Εͨ
    w TXJGU@BUUS !@OPO4FOEBCMF @BTTVNFE
    
    
    

    ಉ͡એݴ΍ܕʹ෇͍ͨTXJGU@BUUS l!4FOEBCMFz
    ͸ແࢹ͞Εͳ͍
    0CKFDUJWF$એݴͷ4FOEBCMF
    

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