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SwiftコンパイラがSwiftで開発できるようになる話
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freddi(Yuki Aki)
July 21, 2021
Technology
3
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SwiftコンパイラがSwiftで開発できるようになる話
freddi(Yuki Aki)
July 21, 2021
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Transcript
2021/07/21 SwiftѪձ SwiftίϯύΠϥ͕SwiftͰ։ൃͰ͖ΔΑ͏ʹͳΔ freddi (@_ _ _ freddi _ _
_)
͓·͑ͩΕ • freddi • iOS Engineer at Fukuoka • LINEελϯϓൢചத
• ΦϦδφϧTγϟπ
͓·͑ͩΕ • Geekle ͱ͍͏ஂମ͕ओ࠵ͯ͠Δ iOS Conference ʹొஃ͠·͢ʂ • https://geekle.us/ios
SwiftίϯύΠϥ͕SwiftͰ։ൃͰ͖ΔΑ͏ʹͳΔ
ͨͩ͠Ұ෦ͷ
SwiftίϯύΠϥͷ։ൃݴޠ • ϨϙδτϦͷC++ • ඪ४ϥΠϒϥϦΛআ͍ͯ΄΅ C++ • Driver, Parser, Type
Checker, Optimizer ͳͲ • ࣮ΛಡΉʹC++LLVMͷࣄલ͕͍͔ࣝͭ͘ඞཁ
Swift Driver ʹ͍ͭͯ
Swift Driver ʹ͍ͭͯ • ࣮ͪΒͬͱࠓͷWWDCͰݴٴ͞Ε͍ͯΔ • ΠϯΫϦϝϯλϧϏϧυΛߴԽ͢ΔͨΊͷ3ͭͷओཁͳվળͷҰͭ https://developer.apple.com/videos/play/wwdc2021/10192/
͜͜ͰͷDriverͱԿ • USBͱ͔ͷυϥΠόͱશ͘ผͳͷͰҙ͞Εͨ͠ • DriverϓϩάϥϜͱɺ • ͍͔ͭ͘ͷύʔπͱͯ͠ͷϓϩάϥϜΛదʹݺͼग़͢ϓϩάϥϜ • gcc ίϚϯυυϥΠόϓϩάϥϜ
• ࣮ swift swiftc ίϚϯυυϥΠόϓϩάϥϜ
swift ͷ߹ swift (driver) package hello.swift (Կͳ͠) REPLͷىಈ helllo.swift
ͷίϯύΠϧɾϏϧυ ࣮ߦϑΝΠϧੜ Swift package ؔ࿈ͷಈ࡞ swift (driver) swift (driver) … υϥΠό …υϥΠόͷ໋ྩ … ݁Ռ
ίϚϯυϥΠϯͷҾͱͷؔ swift (driver) package hello.swift (Կͳ͠) REPLͷىಈ helllo.swift ͷίϯύΠϧɾϏϧυ
࣮ߦϑΝΠϧੜ Swift package ؔ࿈ͷಈ࡞ swift (driver) swift (driver) $ swift package $ swift hello.world $ swift … ϝΠϯͷίϚϯυ … ҾͳͲ … ݁Ռ … ίϚϯυϥΠϯ্Ͱͷॻ͖ํ
SwiftͷDriver • swift ίϚϯυ͕ Driver ͕ͩɺ࣮ଶ swift-driver ίϚϯυ • swift-driver
͕ࣗͲ͏͍͏໊લͰݺΕ͔ͨɺٴͼҾʹΑͬͯ ৼΔ͍ɺݺͼग़͢SwiftίϯύΠϥͷϞδϡʔϧΛม͑Δ • ͳͷͰίϚϯυ͕ࣗ swift swiftc ͱݺΕΔ͔ʹΑͬͯذ͕͋Δ • swift swiftc ࣮΄΅ swift-driver ͱಉ͡ίϚϯυ • ҎલͷDriverC++࣮͕ͩɺSwift Driver Swift Ͱॻ͔Ε͍ͯΔ
͜Ε͔Βͷ Swift Driver ʹ͍ͭͯ • Swift 5.5 (Xcode 13 Beta)
Ҏ߱Ͱඪ४Ͱར༻͞ΕΔ
͜Ε͔Βͷ Swift Driver ʹ͍ͭͯ • Swift Driver ͷͷϝϦοτ͋·Γ·ͱ·ͬͯͳ͍ • ͳΜ͔
Twitter ʹస͕͍ͬͯΔ͘Β͍ • https://twitter.com/dgregor79/status/1260798039515488257 ͜͜ • ࠓ࢈ۀ • SwiftPM ͚ͳͲͷΠϯΫϦϝϯλϧϏϧυͷվળ • ΞʔΩςΫνϟ͕վળ͞Εͯɺར͕૿͑ΔʢฒྻԽͳͲʣ • ৺ஔ͖ͳ͖͘ͳݴޠʢSwiftʣͰॻ͚Δ
Swift Driver ʹؔ͢Δৄ͍͠ࢿྉ • ຊޠͷࢿྉ • https://speakerdeck.com/freddi/jin-ri-karashi-meruswift-driver • https://qiita.com/freddi_/items/4c2149055959248dda28 •
ݱঢ়ݸਓͰॻ͍ͯΔࢿྉੈքͰͷ͘Β͍͔͠ͳ͍ • ϓϩδΣΫτࣗମOSSͳͷͰͦͪΒࢀর͞Εͨ͠ • https://github.com/apple/swift-driver
࠷దԽʹ͍ͭͯ
SwiftίϯύΠϥͷ࠷దԽ෦ • ࠷దԽ෦ͷ࣮ͯ͢C++ͩͬͨ • ͔͠͠ɺlibswift ͱ͍͏ͷʹΑͬͯ Swift Ͱॻ͚ΔΑ͏ʹͳͬͨ • ଟஈ֊తʹҠߦ͢Δʁ
• https://github.com/apple/swift/blob/main/libswift/README.md
SwiftίϯύΠϥͷ࠷దԽ෦ raw SIL canonical SIL Pass Pass Pass Pass •
Swift ίʔυίϯύΠϥͰ SIL ͱݺΕΔίʔυʹม͞ΕΔ • SIL ࠷దԽ͞ΕΔ͕ɺ࠷దԽલ͕ raw SILɺޙ͕ canonical SIL • raw SIL ΛͦΕͧΕͷׂͰ࠷దԽ͢ΔϞδϡʔϧ͕ Pass • Pass ͕ Swift Ͱॻ͚ΔΑ͏ʹͳͬͨɺͱ͍͏ (libswift)
SwiftίϯύΠϥͷ࠷దԽ෦ • NSSpain 2020 Ͱ ͜͜ΒΜͷৄ͍͕͋͠ΔͷͰؾʹͳΔํ ࢀর͞Εͨ͠ https://vimeo.com/479467405
C++ ͔Β Swift ʹ͢Δࡍͷݒ೦ • SwiftͷϝϞϦཧํ๏ ARCɺҰํC++΄΅ϓϩάϥϚ͕Δ • ARC ศར͚ͩͲΦʔόʔϔου͕͋Δ
• ARCͷΧϯτɺཪͰίʔυ͕૿͑ͨΓ͍ͯ͠Δͷࣄ࣮ • libswift ͰͦΕΛճආ͢ΔͨΊͷ͕͋Δ Θ͍Θ͍swiftc #29 Ͱ͜͜ΒΜͷ͕͋Γ·͢ʂ https://iosdiscord.connpass.com/event/218858/
Swift Ͱॻ͘ํ๏ • libswift Swift Package Manager ܦ༝ͰimportՄೳʂ •
͔ΜͨΜʹ Optimizer ͷ Pass Λ։ൃͰ͖·͢ Θ͍Θ͍swiftc #29 Ͱ͜͜ΒΜͷ͕͋Γ·͢ʂ https://iosdiscord.connpass.com/event/218858/
·ͱΊ
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/