Inside of Swift Export

Kotlin Fest 2025
https://fortee.jp/kotlin-fest-2025/proposal/36866307-c3ca-4cca-b1e4-f0259f293b5f

References:

Swift Export - a peek under the hood - Kotlin Conf 2025
https://2025.kotlinconf.com/talks/798313/
Swift Export: Natural Interoperability between Kotlin and Swift | by Santiago Mattiauda | Medium
https://medium.com/@santimattius/swift-export-natural-interoperability-between-kotlin-and-swift-720799961edc
kotlin/docs/swift-export/architecture.md at master · JetBrains/kotlin
https://github.com/JetBrains/kotlin/blob/master/docs/swift-export/architecture.md

Swift Export Experimental 2.2.20 features
https://kotl.in/swift-export-feature-status

Exploring Kotlin (native) compilation | by Filip Wiesner | MateeDevs | Medium
https://medium.com/mateedevs/exploring-kotlin-native-compilation-7d396b0b7fde
How Kotlin Swift Export Works - YouTube
https://www.youtube.com/watch?v=qtWHRrIfKbQ
Swift Exportはどこから来たのか、Swift Exportは何者か、Swift Exportはどこへ行くのか
https://zenn.dev/f0x/articles/f0d2d1320794bd

Transcript

1. 2025/11/1 Kotlin Fest 2025 @giginet Inside of Swift Export KotlinͱSwiftΛܨ͙৽͍͠࢓૊Έ
2. • X/GitHub : @giginet • LINEϠϑʔגࣜձࣾ • LINE iOSΞϓϦͷϏϧυγεςϜվળ΍ɺ։ൃऀͷͨΊͷπʔϧ։ ൃΛ͍ͯ͠·͢ • αʔόʔαΠυKotlin΋΍͍ͬͯ·͢ • Kotlin Fest͸ॳొஃ Self Introduction
4. ,PUMJO
   ͔Β
   σϑΥϧτ༗ޮԽ
5. Swift Export • Kotlin 2.1.0͔Βར༻Մೳʹͳͬͨ৽͍͠Kotlin -> Swiftͷ interoperability(interop) • 2.2.20͔ΒσϑΥϧτ༗ޮԽ • ैདྷɺSwift͔Β͸Kotlinͷ࣮૷͕Objective-Cͱ͔ͯ͠͠ݟ͑ͳ͔͕ͬͨɺ௚ ઀Swiftͱͯ͠ѻ͑ΔΑ͏ʹͳͬͨ
6. Agenda • ैདྷͷSwift Interoperability - Objective-C Export • ࢓૊Έͱ໰୊఺ • ৽͍͠Interoperability - Swift Export • ͳʹ͕Ͱ͖ΔΑ͏ʹͳͬͨͷ͔ • Ͳ͏΍ͬͯಈ࡞͍ͯ͠Δͷ͔ • ࠓޙͷϩʔυϚοϓ
7. ैདྷͷSwift Interoperability • Objective-C Export • Kotlin NativeͷϏϧυγεςϜͰϏϧυ • KotlinͷωΠςΟϒόΠφϦΛObjCܦ༝Ͱࢀরͯ͠ɺͦΕΛSwift͔ΒಡΈࠐΈ • ͦͷաఔͰObjCͷݴޠػೳͷΈʹ੍໿ɻදݱྗ͕ࣦΘΕΔ KOTLIN Objective-C
8. fun fibonacci(n: Int): Int = if (n <= 1) n else fibonacci(n - 1) + fibonacci(n - 2)
9. fun fibonacci(n: Int): Int = if (n <= 1) n else fibonacci(n - 1) + fibonacci(n - 2) __attribute__((objc_subclassing_restricted)) __attribute__((swift_name("FunctionsKt"))) @interface MOCFFunctionsKt : OCEDBase + (int32_t)fibonacciN:(int32_t)n __attribute__((swift_name("fibonacci(n:)"))); @end
10. fun fibonacci(n: Int): Int = if (n <= 1) n else fibonacci(n - 1) + fibonacci(n - 2) __attribute__((objc_subclassing_restricted)) __attribute__((swift_name("FunctionsKt"))) @interface MOCFFunctionsKt : OCEDBase + (int32_t)fibonacciN:(int32_t)n __attribute__((swift_name("fibonacci(n:)"))); @end import MyObjCFramework FunctionsKt.fibonacci(n: 10)
11. data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) }
12. __attribute__((objc_subclassing_restricted)) __attribute__((swift_name("Vector"))) @interface MOCFVector : MOCFBase - (OCEDVector *)plusOther:(OCEDVector *)other __attribute__((swift_name("plus(other:)"))); @end data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) }
13. __attribute__((objc_subclassing_restricted)) __attribute__((swift_name("Vector"))) @interface MOCFVector : MOCFBase - (OCEDVector *)plusOther:(OCEDVector *)other __attribute__((swift_name("plus(other:)"))); @end let a = Vector(x: 10, y: 20) let b = Vector(x: 15, y: 25) a.plus(other: b) data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) }
14. ObjCΛܦ༝ͨ͠interopͷ໰୊఺ • Kotlinͷදݱྗͷଟ͕ࣦ͘ΘΕΔ • ϞδϡʔϧɾωʔϜεϖʔε • ΦʔόʔϩʔυɺԋࢉࢠΦʔόʔϩʔυ • δΣωϦΫε • PrimitiveܕͷίϨΫγϣϯͷѻ͍ • async-await
15. KOTLIN
16. KOTLIN C Header Native Library Build
17. KOTLIN MyLibrary.framework C Header Native Library Build
18. KOTLIN MyLibrary.framework C Header Native Library Build Link
19. ObjCExportDemo.framework
20. ObjC ExportͷϏϧυγεςϜͷ໰୊఺ • ϏϧυγεςϜ͕ෳࡶͰॊೈੑ͕ͳ͍ • Apple FrameworkܗࣜͰόΠφϦͱͯ͠ు͖ग़͞ΕΔͨΊɺSwiftଆͷIDE͔ ΒऔΓճͮ͠Β͍ • SwiftίϯύΠϥ͕ղऍͰ͖ΔόΠφϦͷੜ੒·ͰΛKotlin NativeίϯύΠϥ ͕୲͏ͨΊෳࡶͰີ݁߹
22. Swift Export
23. KOTLIN Objective-C Objective-C Export
24. KOTLIN Swift Export
25. kotlin { swiftExport { moduleName = “MySwiftFramework" } }
26. ./gradlew :embedSwiftExportForXcode
27. Kotlin/swift-export-sample
28. fun fibonacci(n: Int): Int = if (n <= 1) n else fibonacci(n - 1) + fibonacci(n - 2)
29. fun fibonacci(n: Int): Int = if (n <= 1) n else fibonacci(n - 1) + fibonacci(n - 2) import MySwiftFramework fibonacci(n: 10)
30. package com.github.jetbrains.modulea class ClassFromA(private val name: String) { fun hello(): String { return "Hello from $name" } }
31. package com.github.jetbrains.modulea class ClassFromA(private val name: String) { fun hello(): String { return "Hello from $name" } } import ModuleA import ModuleB let moduleA = ClassFromA("Alice") let moduleB = ClassFromB("Bob") print(moduleA.hello()) print(moduleB.hello())
32. data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) }
33. data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) } import Geometry let a = Vector(x: 10, y: 20) let b = Vector(x: 15, y: 25) let combined = a + b
34. Inside of Swift Export • ΞʔΩςΫνϟ͸ެࣜͷυΩϡϝϯτͰ঺հ͞Ε͍ͯΔ • https://github.com/JetBrains/kotlin/tree/master/docs/swift-export • Reference • Swift Export - a peek under the hood - Kotlin Conf 2025 • https://2025.kotlinconf.com/talks/798313/ • Swift Export: Natural Interoperability between Kotlin and Swift | by Santiago Mattiauda | Medium • https://medium.com/@santimattius/swift-export-natural-interoperability- between-kotlin-and-swift-720799961edc
35. https://github.com/JetBrains/kotlin/blob/master/docs/swift-export/architecture.md
36. https://github.com/JetBrains/kotlin/blob/master/docs/swift-export/architecture.md
37. data class Vector( val x: Double, val y: Double, ) { operator fun plus(other: Vector): Vector = Vector(x + other.x, y + other.y) }
38. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
39. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
40. Analysis API • K2 Compiler͕ఏڙ͢Δίʔυղੳͷ࢓૊Έ • Kotlinίʔυ͔Βܕ৘ใͳͲͷηϚϯςΟΫεΛ෼ੳ • ੩తղੳث(ktlint)΍υΩϡϝϯτੜ੒(dokka)ͳͲʹ΋ར༻͞Ε͍ͯΔ • K2ͷKotlin IDEϓϥάΠϯͷதΛ೷͍ͯΈΑ͏♪ - Kotlin Fest 2024 • https://2024.kotlinfest.dev/timetable/1719042600_a/
41. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
42. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
43. Swift Intermediate Representation (Sir) • Swift Exportಠࣗͷதؒදݱ • ࣮ମ͸Swift Export࣮૷಺ͷKotlinΦϒδΣΫτ
44. Swift Intermediate Representation (Sir) • Swift Exportಠࣗͷதؒදݱ • ࣮ମ͸Swift Export࣮૷಺ͷKotlinΦϒδΣΫτ data class Vector constructor(x: Kotlin.Double, y: Kotlin.Double) property x: Kotlin.Double property y: Kotlin.Double operator fun plus(other: Vector): Vector Analysis API
45. Swift Intermediate Representation (Sir) • Swift Exportಠࣗͷதؒදݱ • ࣮ମ͸Swift Export࣮૷಺ͷKotlinΦϒδΣΫτ data class Vector constructor(x: Kotlin.Double, y: Kotlin.Double) property x: Kotlin.Double property y: Kotlin.Double operator fun plus(other: Vector): Vector class Vector init(x: Swift.Double, y: Swift.Double) var x: Swift.Double var y: Swift.Double static func +(this: Vector, other: Vector) -> Vector Analysis API Sir
46. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
47. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
48. Bridgeͷੜ੒ • Sir͔ΒKotlin, Clang Header(C), Swiftͷ3ͭͷίʔυΛੜ੒͢Δ • Kotlin Function Bridge • Kotlin NativeͷόΠφϦΛૢ࡞͢ΔͨΊͷ௿ϨϕϧͳΠϯλʔϑΣΠε(ABI) • Swiftଆ͔Β౉͖ͬͯͨϙΠϯλΛKotlinΦϒδΣΫτʹม׵ͯ͠ૢ࡞͢Δϥού • C Header • Kotlin Function BridgeͰग़ྗ͞ΕͨABIΛCͷؔ਺ͱͯ͠ެ։ • Swift • Cͷؔ਺ΛϢʔβʔ͕ૢ࡞͠΍͍͢Α͏ʹSwiftͰϥοϓ
49. @ExportedBridge("Vector_x_get") public fun Vector_x_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.x return _result } @ExportedBridge("Vector_y_get") public fun Vector_y_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.y return _result } @ExportedBridge("Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__") public fun Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self: kotlin.native.internal.NativePtr, other: kotlin.native.internal.NativePtr): kotlin.native.internal.NativePtr { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val __other = kotlin.native.internal.ref.dereferenceExternalRCRef(other) as Vector val _result = __self.plus(__other) return kotlin.native.internal.ref.createRetainedExternalRCRef(_result) } Kotlin Function Bridge (*.kt)
50. @ExportedBridge("Vector_x_get") public fun Vector_x_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.x return _result } @ExportedBridge("Vector_y_get") public fun Vector_y_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.y return _result } @ExportedBridge("Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__") public fun Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self: kotlin.native.internal.NativePtr, other: kotlin.native.internal.NativePtr): kotlin.native.internal.NativePtr { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val __other = kotlin.native.internal.ref.dereferenceExternalRCRef(other) as Vector val _result = __self.plus(__other) return kotlin.native.internal.ref.createRetainedExternalRCRef(_result) } Kotlin Function Bridge (*.kt)
51. Kotlin Function Bridge (*.kt) @ExportedBridge("Vector_x_get") public fun Vector_x_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.x return _result } @ExportedBridge("Vector_y_get") public fun Vector_y_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.y return _result } @ExportedBridge("Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__") public fun Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self: kotlin.native.internal.NativePtr, other: kotlin.native.internal.NativePtr): kotlin.native.internal.NativePtr { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val __other = kotlin.native.internal.ref.dereferenceExternalRCRef(other) as Vector val _result = __self.plus(__other) return kotlin.native.internal.ref.createRetainedExternalRCRef(_result) }
52. Kotlin Function Bridge (*.kt) @ExportedBridge("Vector_x_get") public fun Vector_x_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.x return _result } @ExportedBridge("Vector_y_get") public fun Vector_y_get(self: kotlin.native.internal.NativePtr): Double { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val _result = __self.y return _result } @ExportedBridge("Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__") public fun Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self: kotlin.native.internal.NativePtr, other: kotlin.native.internal.NativePtr): kotlin.native.internal.NativePtr { val __self = kotlin.native.internal.ref.dereferenceExternalRCRef(self) as Vector val __other = kotlin.native.internal.ref.dereferenceExternalRCRef(other) as Vector val _result = __self.plus(__other) return kotlin.native.internal.ref.createRetainedExternalRCRef(_result) }
53. void * Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(void * self, void * other); double Vector_x_get(void * self); double Vector_y_get(void * self); C Header (*.h)
54. public final class Vector: KotlinRuntime.KotlinBase, KotlinRuntimeSupport._KotlinBridged { public var x: Swift.Double { get { return Vector_x_get(self.__externalRCRef()) } } public var y: Swift.Double { get { return Vector_y_get(self.__externalRCRef()) } } public static func +( this: SwiftExportDemo.Vector, other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { this._plus(other: other) } public func _plus( other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { return SwiftExportDemo.Vector.__createClassWrapper(externalRCRef: Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self.__externalRCRef(), other.__externalRCRef())) } } Swift Wrapper (*.swift)
55. public final class Vector: KotlinRuntime.KotlinBase, KotlinRuntimeSupport._KotlinBridged { public var x: Swift.Double { get { return Vector_x_get(self.__externalRCRef()) } } public var y: Swift.Double { get { return Vector_y_get(self.__externalRCRef()) } } public static func +( this: SwiftExportDemo.Vector, other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { this._plus(other: other) } public func _plus( other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { return SwiftExportDemo.Vector.__createClassWrapper(externalRCRef: Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self.__externalRCRef(), other.__externalRCRef())) } } Swift Wrapper (*.swift)
56. public final class Vector: KotlinRuntime.KotlinBase, KotlinRuntimeSupport._KotlinBridged { public var x: Swift.Double { get { return Vector_x_get(self.__externalRCRef()) } } public var y: Swift.Double { get { return Vector_y_get(self.__externalRCRef()) } } public static func +( this: SwiftExportDemo.Vector, other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { this._plus(other: other) } public func _plus( other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { return SwiftExportDemo.Vector.__createClassWrapper(externalRCRef: Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self.__externalRCRef(), other.__externalRCRef())) } } Swift Wrapper (*.swift)
57. public final class Vector: KotlinRuntime.KotlinBase, KotlinRuntimeSupport._KotlinBridged { public var x: Swift.Double { get { return Vector_x_get(self.__externalRCRef()) } } public var y: Swift.Double { get { return Vector_y_get(self.__externalRCRef()) } } public static func +( this: SwiftExportDemo.Vector, other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { this._plus(other: other) } public func _plus( other: SwiftExportDemo.Vector ) -> SwiftExportDemo.Vector { return SwiftExportDemo.Vector.__createClassWrapper(externalRCRef: Vector_plus__TypesOfArguments__SwiftExportDemo_Vector__(self.__externalRCRef(), other.__externalRCRef())) } } Swift Wrapper (*.swift)
59. KOTLIN KOTLIN Swift Wrapper C Header Kotlin Function Bridge
60. vector.x KOTLIN KOTLIN Swift Wrapper C Header Kotlin Function Bridge
61. vector.x KOTLIN KOTLIN Swift Wrapper C Header Kotlin Function Bridge double Vector_x_get(void * self);
62. fun Vector_x_get(self: kotlin.native.internal.NativePtr): Double vector.x KOTLIN KOTLIN Swift Wrapper C Header Kotlin Function Bridge double Vector_x_get(void * self);
63. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
64. Swift Export Pipeline 1. Analysis APIͰηϚϯςΟοΫΛղੳ 2. Swift IRͷੜ੒ 3. SirPrinter / BridgeGeneratorͰϒϦοδΛੜ੒͢Δ 4. Kotlin NativeίϯύΠϥ / SwiftίϯύΠϥͰϏϧυ
65. KOTLIN
66. KOTLIN KOTLIN Kotlin Function Bridge Kotlin Native Library
67. KOTLIN KOTLIN Kotlin Function Bridge Kotlin Native Library C Header Swift Wrapper Swift Package
69. Swift Package΁ͷग़ྗ • όΠφϦͰ͸ͳ͘SwiftͷιʔείʔυΛ௚઀ు͖ग़͠ɺSwift Packageͱͯ͠ import͢Δ͜ͱͰXcode͔Βར༻͠΍͘͢ͳΔ • ैདྷͷApple Framework΁ͷܗࣜΑΓऔΓճ͠΍͍͢ • ύοέʔδͷϏϧυ͸SwiftͷϏϧυγεςϜʹ೚ͤΔ • Kotlin NativeίϯύΠϥ͸Kotlin࣮૷ͷϥΠϒϥϦԽͱϒϦοδͷΈΛϏϧυ
70. ϩʔυϚοϓ • ObjC Exportͷػೳʹ·ͩ௥͍͍͍ͭͯͳ͍ • ݱஈ֊Ͱ͸Swift Exportಛ༗ͷػೳ΄ͱΜͲͳ͍ • ·ͣObjC ExportͱͷػೳࠩҟΛݮΒ͍ͯ͘͜͠ͱΛ໨ࢦ͍ͯ͠Δ • Swift Exportݻ༗ͷػೳ͕௥Ճ͞Ε͍ͯ͘ͷ͸͜Ε͔Β • ݱࡏར༻Մೳͳݴޠػೳ͸ҎԼʹ·ͱ·͍ͬͯΔ • https://kotl.in/swift-export-feature-status
71. https://kotl.in/swift-export-feature-status
72. • https://youtrack.jetbrains.com/issue/KT-64572/The- fi rst-public-release-of-Swift-Export
73. • https://youtrack.jetbrains.com/issue/KT-64572/The- fi rst-public-release-of-Swift-Export
74. Objective-C Export Swift Export ग़ྗํ޲ ૒ํ޲ Kotlin -> SwiftͷΈ தؒදݱͷੜ੒ LLVM IRΛ௚઀ੜ੒ K2ͷAnalytics API͔Βઐ༻ͷIRΛ࡞੒ ग़ྗܗࣜ όΠφϦ + ObjCϔομ όΠφϦ + Swiftίʔυ Ϗϧυํ๏ Kotlin Native CompilerͰFrameworkԽ Kotlin Native Compiler + SwiftϏϧυγε ςϜ Gradle Taskͷݺͼग़͠ ୯ମͰ࣮ߦՄೳ XcodeͷBuild Phase͔ΒͷΈ࣮ߦՄೳ ࠷ऴ੒Ռ෺ Apple Framework (*.framework) Swift Package
75. ·ͱΊ • SwiftίʔυΛੜ੒͢ΔΑ͏ʹͳΓදݱྗ্͕͕ͬͨ • Kotlin NativeͷόΠφϦΛ࣮ߦ͢ΔͨΊͷCϒϦοδΛSwiftͰϥοϓ͢Δ • K2 CompilerͷAnalysis APIΛ࢖ͬͨඪ४తͳ࢓૊ΈͰૄ݁߹ʹͳͬͨɻϏϧ υͱϒϦοδͷੜ੒͕੾Γ཭͞Εͨ • Ұ෦ػೳ͸·ͩະ࣮૷ • Xcode্͔Β͔࣮͠ߦͰ͖ͳ͍ • ObjC ExportͰ࣮ݱͰ͖ΔػೳͷҰ෦͕ະ࣮૷ͳͲ
76. Thank you!
77. References • Swift Export - a peek under the hood - Kotlin Conf 2025 • https://2025.kotlinconf.com/talks/798313/ • Swift Export: Natural Interoperability between Kotlin and Swift | by Santiago Mattiauda | Medium • https://medium.com/@santimattius/swift-export-natural-interoperability- between-kotlin-and-swift-720799961edc • kotlin/docs/swift-export/architecture.md at master · JetBrains/kotlin • https://github.com/JetBrains/kotlin/blob/master/docs/swift-export/ architecture.md
78. References • Exploring Kotlin (native) compilation | by Filip Wiesner | MateeDevs | Medium • https://medium.com/mateedevs/exploring-kotlin-native- compilation-7d396b0b7fde • How Kotlin Swift Export Works - YouTube • https://www.youtube.com/watch?v=qtWHRrIfKbQ • Swift Export͸Ͳ͔͜Βདྷͨͷ͔ɺSwift Export͸Կऀ͔ɺSwift Export͸Ͳ͜ ΁ߦ͘ͷ͔ • https://zenn.dev/f0x/articles/f0d2d1320794bd