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【Ebisu.mobile#3】バイトルアプリへのSwift Concurrency導入とその効果

Avatar for Cychow Cychow
July 05, 2023
Programming
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【Ebisu.mobile#3】バイトルアプリへのSwift Concurrency導入とその効果

Avatar for Cychow

Cychow

July 05, 2023
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Transcript

  1. όΠτϧΞϓϦ΁ͷSwift Concurrency ಋೖͱͦͷޮՌ Eiji Shirakazu, iOS Engineer in dip

  2. ࣗݾ঺հ ന਺ ӥ࢘ / Eiji Shirakazu @cychow_app όΠτϧ iOSΞϓϦ։ൃ୲౰ ࠷ۙ͸Vision

    Pro (visionOS)ͷγϛϡϨʔλͰ༡ΜͰ͍·͢ʂ
  3. None

  4. ຊ೔ͷ಺༰ όΠτϧΞϓϦͷ͝঺հͱ։ൃपΓͷ͓࿩ ͦ΋ͦ΋Swift Concurrencyͱ͸ Swift ConcurrencyΛͲͷΑ͏ʹಋೖ͔ͨ͠ Swift Concurrencyಋೖޙͷঢ়گ

  5. όΠτϧΞϓϦͱ͸… ɾΞϧόΠτ/ύʔτٻਓݕࡧαʔϏε ɾ෯޿͍෼໺͔༷ͭʑͳ৚݅ͷΞϧόΠτ/ύʔτ৘ใɹ ɹΛ਺ଟ͘ܝࡌʂ ɾࣸਅ΍ಈըͳͲ͔ΒΞϧόΠτ/ύʔτઌͷ੍෰΍ಇ͍ͯ ɹ͍Δελοϑɺ৬৔ͷงғؾͳͲΛ֬ೝ͢Δ͜ͱ͕Ͱ͖Δʂ

  6. ʮॳճΠϯετʔϧޙͷମݧ޲্ʯػೳʹ͍ͭͯ εϓϥογϡ ٻਓͷҰཡ

  7. ʮॳճΠϯετʔϧޙͷମݧ޲্ʯػೳʹ͍ͭͯ εϓϥογϡ Ϣʔβʔ΁ͷ࣭໰

  8. ʮॳճΠϯετʔϧޙͷମݧ޲্ʯػೳͷ։ൃͰ Swift ConcurrencyΛಋೖʂʂ

  9. Swift Concurrencyͱ͸ WWDC21ʹͯొ৔ͨ͠৽ͨͳฒߦॲཧͷख๏ async/awaitΩʔϫʔυΛ༻͍Δ͜ͱͰඇಉظॲཧ / ฒߦॲཧΛ࣮ݱ͢Δ async/awaitҎ֎ʹ΋Actor΍TaskɺAsyncStreamͳͲͷ֓೦΋ొ৔

  10. None
  11. None

  12. Swift ConcurrencyΛͲͷΑ͏ʹಋೖ͔ͨ͠ ᶃ ·ͣ͸ࣗ਎͕ੵۃతʹConcurrencyʹ͍ͭͯΠϯϓοτͨ͠ ᶄ ಋೖ͢Δ͜ͱʹͲΕ͘Β͍ͷϝϦοτ͕͋Δ͔Λߟ࡯ͨ͠

  13. ɾඇಉظॲཧΛಉظॲཧͷΑ͏ʹදه͢Δ͜ͱͰ࣮ߦॱংΛ௥͍΍͍͢ Swift ConcurrencyΛಋೖ͢ΔϝϦοτ ɾσʔλڝ߹Λճආ͠΍͘͢ͳΔ ɾiOS13Ҏ߱Ͱ࢖༻͢Δ͜ͱ͕Ͱ͖Δ ɾΤϥʔϋϯυϦϯάΛߦ͍΍͘͢ͳΔ ͳͲ…

  14. Swift ConcurrencyΛͲͷΑ͏ʹಋೖ͔ͨ͠ ᶅ ઌഐΤϯδχΞͷํʑͱ૬ஊ͠ɺαʔϏεʹ༩͑ΔӨڹΛߟ্ྀͨ͠Ͱಋೖ ɹ͍ͯ͘͜͠ͱʹͨ͠ ᶃ ·ͣ͸ࣗ਎͕ੵۃతʹConcurrencyʹ͍ͭͯΠϯϓοτͨ͠ ᶄ ಋೖ͢Δ͜ͱʹͲΕ͘Β͍ͷϝϦοτ͕͋Δ͔Λߟ࡯ͨ͠ ᶆ

    Өڹൣғ͕খ͍͞ʮॳճΠϯετʔϧޙͷମݧʯΛ޲্ͤ͞ΔϓϩδΣΫτ ɹʹͯಋೖ͢Δ͜ͱͱͨ͠

  15. ɾcompletionHandlerΛ༻͍ͣɺasync/awaitΛ༻͍ͯදه͢Δɻ ɾGCDΛ࢖༻͢ΔՕॴΛTaskʹஔ͖׵͑Δɻ ɾMainActorΛࢦఆ͢ΔՕॴʹ஫ҙ͢Δɻ Swift ConcurrencyΛಋೖ࣌ͷϙΠϯτ ɾwithCheckedContinuation΍withCheckedThrowingContinuationͰ ɹطଘͷඇಉظॲཧΛasync/awaitʹରԠͤ͞Δ͜ͱ͕Ͱ͖Δɻ ͳͲ

  16. ͨͩɺ໰୊఺΋…

  17. ௚໘ͨ͠໰୊఺ ଞͷ։ൃνʔϜϝϯόʔ΍৽نࢀըऀͷํʹରͯ͠Concurrencyͷ ॻ͖ํͳͲΛ஌ͬͯ΋Β͏ඞཁ͕͋ͬͨɻ

  18. ໰୊఺ͷղܾࡦ LTେձ΁ࢀՃ

  19. Swift Concurrencyಋೖޙͷঢ়گ ɾιʔείʔυͷՄಡੑ͕޲্ͨ͠ ɾνʔϜϝϯόʔ͕ੵۃతʹΩϟονΞοϓ͢ΔΑ͏ʹͳͬͨ ʲݱঢ়ʳ ɾαʔυύʔςΟ੡ϥΠϒϥϦ͔Βඪ४ϥΠϒϥϦʹҠߦ͢Δ͜ͱ͕Ͱ͖͍ͯΔ

  20. Swift Concurrencyಋೖޙͷঢ়گ ɾSwift6΁ͷϝδϟʔΞοϓσʔτͷ४උ ʲࠓޙͷ՝୊ʳ

  21. None

  22. Swift Concurrencyಋೖޙͷঢ়گ ɾࠓޙͷSwift6΁ͷϝδϟʔΞοϓσʔτͷ४උ ɾίϯύΠϥϑϥάʮStrict Concurrency CheckingʯͷಋೖͳͲ΋ݕ౼ ʲࠓޙʳ

  23. ίϯύΠϥϑϥάʮStrict Concurrency Checkingʯ

  24. ίϯύΠϥϑϥάʮExistentialAnyʯ΋ಋೖݕ౼த….

  25. Swift Concurrencyಋೖޙͷঢ়گ ɾࠓޙͷSwift6΁ͷϝδϟʔΞοϓσʔτͷ४උ ɾίϯύΠϥϑϥάʮStrict Concurrency CheckingʯͷಋೖͳͲ΋ݕ౼ ɾSendable΁ͷ४ڌͷνΣοΫͳͲ΋͓͜ͳ͍͖͍ͬͯͨ ʲࠓޙʳ

  26. όΠτϧͰ͸Ҿ͖ଓ͖ٕज़త௅ઓΛଓ͚͍͖ͯ·͢ʂ

  27. None