SwiftコンパイラがSwiftで開発できるようになる話

Transcript

1. 2021/07/21 SwiftѪ޷ձ
   SwiftίϯύΠϥ͕SwiftͰ։ൃͰ͖ΔΑ͏ʹͳΔ࿩
   freddi (@_ _ _ freddi _ _ _)
   

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2. ͓·͑ͩΕ
   • freddi
   
   • iOS Engineer at Fukuoka
   
   • LINEελϯϓൢചத
   
   • ΦϦδφϧTγϟπ΋
   

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3. ͓·͑ͩΕ
   • Geekle ͱ͍͏ஂମ͕ओ࠵ͯ͠Δ iOS Conference ʹొஃ͠·͢ʂ
   
   • https://geekle.us/ios
   

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4. SwiftίϯύΠϥ͕SwiftͰ։ൃͰ͖ΔΑ͏ʹͳΔ
   

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5. ͨͩ͠Ұ෦ͷ࿩
   

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6. SwiftίϯύΠϥͷ։ൃݴޠ
   • ϨϙδτϦͷ൒෼͸C++
   
   • ඪ४ϥΠϒϥϦΛআ͍ͯ΄΅ C++
   
   • Driver, Parser, Type Checker, Optimizer ͳͲ
   
   • ࣮૷ΛಡΉʹ΋C++΍LLVMͷࣄલ஌͕͍͔ࣝͭ͘ඞཁ
   

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7. Swift Driver ʹ͍ͭͯ
   

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8. Swift Driver ʹ͍ͭͯ
   • ࣮͸ͪΒͬͱࠓ೥ͷWWDCͰݴٴ͞Ε͍ͯΔ
   
   • ΠϯΫϦϝϯλϧϏϧυΛߴ଎Խ͢ΔͨΊͷ3ͭͷओཁͳվળͷҰͭ
   https://developer.apple.com/videos/play/wwdc2021/10192/
   

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9. ͜͜ͰͷDriverͱ͸Կ
   • USBͱ͔ͷυϥΠόͱ͸શ͘ผ෺ͳͷͰ஫ҙ͞Εͨ͠
   
   • DriverϓϩάϥϜͱ͸ɺ
   
   • ͍͔ͭ͘ͷύʔπͱͯ͠ͷϓϩάϥϜΛద੾ʹݺͼग़͢ϓϩάϥϜ
   
   • gcc ίϚϯυ͸υϥΠόϓϩάϥϜ
   
   • ࣮͸ swift ΍ swiftc ίϚϯυ΋υϥΠόϓϩάϥϜ
   

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10. swift ͷ৔߹
    swift
    

    (driver)
    package
    hello.swift
    (Կ΋ͳ͠) REPLͷىಈ
    helllo.swift ͷίϯύΠϧɾϏϧυ
    

    ࣮ߦϑΝΠϧੜ੒
    Swift package ؔ࿈ͷಈ࡞
    swift
    

    (driver)
    swift
    

    (driver)
    … υϥΠό …υϥΠό΁ͷ໋ྩ … ݁Ռ
    

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11. ίϚϯυϥΠϯͷҾ਺ͱͷؔ܎
    swift
    

    (driver)
    package
    hello.swift
    (Կ΋ͳ͠) REPLͷىಈ
    helllo.swift ͷίϯύΠϧɾϏϧυ
    

    ࣮ߦϑΝΠϧੜ੒
    Swift package ؔ࿈ͷಈ࡞
    swift
    

    (driver)
    swift
    

    (driver)
    $ swift package
    $ swift hello.world
    $ swift
    … ϝΠϯͷίϚϯυ … Ҿ਺ͳͲ … ݁Ռ
    … ίϚϯυϥΠϯ্Ͱͷॻ͖ํ
    

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12. SwiftͷDriver
    • swift ίϚϯυ͕ Driver ͕ͩɺ࣮ଶ͸ swift-driver ίϚϯυ
    
    • swift-driver ࣗ਎͕Ͳ͏͍͏໊લͰݺ͹Ε͔ͨɺٴͼҾ਺ʹΑͬͯ

    ৼΔ෣͍΍ɺݺͼग़͢SwiftίϯύΠϥͷϞδϡʔϧΛม͑Δ
    
    • ͳͷͰίϚϯυࣗ਎͕ swift swiftc ͱݺ͹ΕΔ͔ʹΑͬͯ෼ذ͕͋Δ
    
    • swift swiftc ͸࣮͸΄΅ swift-driver ͱಉ͡ίϚϯυ
    
    • ҎલͷDriver͸C++࣮૷͕ͩɺSwift Driver ͸ Swift Ͱॻ͔Ε͍ͯΔ
    

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13. ͜Ε͔Βͷ Swift Driver ʹ͍ͭͯ
    • Swift 5.5 (Xcode 13 Beta) Ҏ߱Ͱඪ४Ͱར༻͞ΕΔ
    

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14. ͜Ε͔Βͷ Swift Driver ʹ͍ͭͯ
    • Swift Driver ͷ࿩ͷϝϦοτ͸͋·Γ·ͱ·ͬͯͳ͍
    
    • ͳΜ͔ Twitter ʹస͕͍ͬͯΔ͘Β͍
    
    • https://twitter.com/dgregor79/status/1260798039515488257 ͜͜
    
    • ࠓ๺࢈ۀ
    
    • SwiftPM ޲͚ͳͲͷΠϯΫϦϝϯλϧϏϧυͷվળ
    
    • ΞʔΩςΫνϟ͕վળ͞Εͯɺར఺͕૿͑ΔʢฒྻԽͳͲʣ
    
    • ৺ஔ͖ͳ͘޷͖ͳݴޠʢSwiftʣͰॻ͚Δ
    

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15. Swift Driver ʹؔ͢Δৄ͍͠ࢿྉ
    • ೔ຊޠͷࢿྉ
    
    • https://speakerdeck.com/freddi/jin-ri-karashi-meruswift-driver
    
    • https://qiita.com/freddi_/items/4c2149055959248dda28
    
    • ݱঢ়ݸਓͰॻ͍ͯΔࢿྉ͸ੈքͰ๻ͷ͘Β͍͔͠ͳ͍
    
    • ϓϩδΣΫτࣗମ͸OSSͳͷͰͦͪΒ΋ࢀর͞Εͨ͠
    
    • https://github.com/apple/swift-driver
    

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16. ࠷దԽʹ͍ͭͯ
    

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17. SwiftίϯύΠϥͷ࠷దԽ෦෼
    • ࠷దԽ෦෼ͷ࣮૷͸͢΂ͯC++ͩͬͨ
    
    • ͔͠͠ɺlibswift ͱ͍͏΋ͷʹΑͬͯ Swift Ͱ΋ॻ͚ΔΑ͏ʹͳͬͨ
    
    • ଟ෼ஈ֊తʹҠߦ͢Δʁ
    
    • https://github.com/apple/swift/blob/main/libswift/README.md
    

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18. SwiftίϯύΠϥͷ࠷దԽ෦෼
    raw
    SIL
    canonical
    SIL
    Pass Pass
    Pass Pass
    • Swift ίʔυ͸ίϯύΠϥ಺Ͱ SIL ͱݺ͹ΕΔίʔυʹม׵͞ΕΔ
    
    • SIL ͸࠷దԽ͞ΕΔ͕ɺ࠷దԽલ͕ raw SILɺޙ͕ canonical SIL
    
    • raw SIL ΛͦΕͧΕͷ໾ׂͰ࠷దԽ͢ΔϞδϡʔϧ͕ Pass
    
    • Pass ͕ Swift Ͱॻ͚ΔΑ͏ʹͳͬͨɺͱ͍͏࿩ (libswift)
    

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19. SwiftίϯύΠϥͷ࠷దԽ෦෼
    • NSSpain 2020 Ͱ ͜͜Β΁Μͷৄ͍͠࿩͕͋ΔͷͰؾʹͳΔํ͸

    ࢀর͞Εͨ͠
    https://vimeo.com/479467405
    

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20. C++ ͔Β Swift ʹ͢Δࡍͷݒ೦
    • SwiftͷϝϞϦ؅ཧํ๏͸ ARCɺҰํC++͸΄΅ϓϩάϥϚ͕΍Δ
    
    • ARC ͸ศར͚ͩͲΦʔόʔϔου͕͋Δ
    
    • ARCͷΧ΢ϯτ෼ɺཪͰίʔυ͕૿͑ͨΓ͍ͯ͠Δͷ͸ࣄ࣮
    
    • libswift Ͱ͸ͦΕΛճආ͢ΔͨΊͷ޻෉͕͋Δ
    Θ͍Θ͍swiftc #29 Ͱ͜͜Β΁Μͷ࿩͕͋Γ·͢ʂ
    https://iosdiscord.connpass.com/event/218858/
    

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21. Swift Ͱॻ͘ํ๏
    • libswift ͸ Swift Package Manager ܦ༝ͰimportՄೳʂ
    
    • ͔ΜͨΜʹ Optimizer ͷ Pass Λ։ൃͰ͖·͢
    Θ͍Θ͍swiftc #29 Ͱ͜͜Β΁Μͷ࿩͕͋Γ·͢ʂ
    https://iosdiscord.connpass.com/event/218858/
    

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22. ·ͱΊ
    

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23. SwiftίϯύΠϥͷҰ෦͕SwiftͰ։ൃͰ͖Δ
    • Swift Driver Project
    
    • https://github.com/apple/swift-driver
    
    • https://twitter.com/dgregor79/status/1260798039515488257
    
    • Swift ͷ࠷దԽ෦෼
    
    • https://github.com/apple/swift/blob/main/libswift/README.md
    
    • Θ͍Θ͍swiftc #29 Ͱղઆ͞ΕΔͷͰདྷͯͶʂ

    https://iosdiscord.connpass.com/event/218858/
    

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