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Kotlin 2.0을 통해 알아보는 코틀린의 미래
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Leonardo YongUk Kim
May 24, 2023
Programming
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2.5k
Kotlin 2.0을 통해 알아보는 코틀린의 미래
라인 테크 토크에서 공유한 "코틀린 2.0을 통해 알아보는 코틀린의 미래" 발표 자료입니다.
Leonardo YongUk Kim
May 24, 2023
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Transcript
Kotlin 2.0 ਸ ా೧ ঌইࠁח Kotlin ې Leonardo YongUk
Kim 2023.05
2 Contents 01 02 03 04 05 Kotlin 2.0 ߂
୶оੋ য ച Kotlin Multiplatform Compose for iOS Compose for Desktop Compose for Web
1. Kotlin 2.0 ߂ ୶оੋ য ച
,ࣁ҅ীࢲفߣ૩۽֫,PUMJOীبੑغחۿূ٘
5 K2 ஹੌ۞ بੋ ۿূ٘ ೱ࢚ https://blog.jetbrains.com/ko/kotlin/2023/04/kotlinconf-2023-opening-keynote/
6 ۿূ٘৬ ߔূ٘о ޖੋоਃ? ۿ ূ٘ ࢲ৬ दݭ౮ গօۄ۽ ҳࢿ.
ࣗझ٘ܳ ੍য ҳޙ ܻܳ ٜ݅Ҋ ࠁܳ ୶оೣ. ߔূ٘ р ٘ ࢤࢿ & ୭ചӝ৬ ݠन ٘ ࢤࢿ ୭ ച۽ ա־য. ୭ചܳ ೞҊ ӝ҅য ٘ա ఋѶ ٘ܳ ࢤࢿ. ౣܽ ҃ীח ߄ Bytecodeա LLVM Bitcodeо ఋѶ. ౣܽ ౣܽ ҃ী (1.3ө) р ٘ ࢤࢿ & ୭ ചӝо হ. ബਯࠁח ౣܽ য ߊ ؊ ਃ೮. (ӝࣿࠗ) https://twitter.com/kotlin
7 ߔূ٘ী IR بੑ IR ߔূ٘ীࢲ ҕਬೞח р ࣻળ য
IR generator & optimizer IRਸ ٜ݅Ҋ ୭ച ೞח . ౣܽ ֎౭࠳ܳ ٜ݅ݴ ࢜܂ѱ ୶о. റ JVM(1.5)җ JS(1.6)ਸ IRਸ ॳب۾ ࢿ. ҕాੋ ୭ചܳ ೡ ࣻ . (Ӓө ח ߔূ٘݃ ߹ب۽ ࢿ.) بೞח ঋও݅ ࢜ ߔূ٘ ࢿמ ೱ࢚! https://twitter.com/kotlin
թ Ѫ ۿূ٘ ۨѢद PSI (Program Structure Interface) PSI Program
Structure Interface ౣܽ ٘ܳ यೠ Ѿҗ ܻ. IntelliJীࢲ ݢ ॳ؍ ҳઑܳ ౣܽ ஹੌ۞ب ରਊ. ࣗझ ٘৬ Ѣ غח ױࣽೠ ഋక.
PSIViewer۽ PSIܳ ഛੋ оמ
ܳ ח BindingContext Kotlin Compiler In past, 1.4 and beyond
ܳ ח BindingContext Kotlin Compiler In past, 1.4 and beyond
ܳ ח BindingContext Kotlin Compiler In past, 1.4 and beyond
PSI + BindingContextо ޙઁо աਃ? ୭ച ۿূ٘ ࣻળীࢲ PSIীࢲ ୭ചܳ
ೞח Ѫ औ ঋ. ޙݓ ߹ب BIndingContextী ח Ѫب ୭ചী જ ޅೣ. நए झ BindingContextо Ѣೠ Mapযࢲ நए ബਯী જ ޅೣ.
Frontend Intermediate Representation ߔূ٘ীѱ ׳ೡ ࢜۽ р য https://twitter.com/kotlin
Kotlin FIR Viewer FIRਸ ࠅ ࣻ ח ࠭য https://github.com/google/Kotlin-FirViewer
Kotlin Compiler In past, 1.4 and beyond
ۿূ٘ ৵ FIR فѐо աਃ? ࢲ 3BX'*3࠽؊ "OBMZ[F ழ झܻ
'*3 '*3 ױ Lowering ױࣽച(simplify)ۄҊ ࢸݺ. ٣गѢ݂(Desugraing)ۄҊب അ. ࠺ҳઑച (Desctructure)ܳ োࣘػ ੑਵ۽ ߸҃. for ١ਸ whileਵ۽ ߸҃. ো(+, +=, in, …)١ਸ ݺदੋ ഐ۽ ߸ഋ. ӝఋ ۿূ٘ ࣻળীࢲ ୭ചب ࣻ೯.
18 FIR ӝ߈ ۿূ ஹੌ۞ ࢿמ FIR ӝ߈ਵ۽ ݅ٚ
ۿূ٘ח PSI + BindingContext ӝ߈ ۿূ٘ ࠁ ഻न ࡅܴ. IDE IDEب ۿূ٘ܳ ҕਬ. ੋభܻઁীࢲ ܳ ঈೞҊ ٘ ೞۄ, ࠙ࢳೞח ࣘبо ࡈۄ. Kotlin IDE ۞Ӓੋ ࢿ.
19 о ݆ ਃ߉ ӝמ Static Extensions ੋझఢझо ইפ؊ۄب ഛ
ೣࣻܳ ٜ݅ ࣻ . Collection Literals listOf, mapOf, setOf о ইצ ܻఠۡ۽ ஸ۩࣌. Name-based Destructuring ࠺ҳઑച(ҳઑ࠙೧)ܳ ਤ ӝ߈ ইפۄ ܴ ӝ߈ਵ۽. Explicit Fields э ஶࣆ private, public ۽ಌ౭ܳ ٜ݅ ঋইب ؽ. Context Receivers ݯߡ ഛ ೣࣻ ৻ী Contextܳ ೡ ߑߨ ୶о.
20 ഛ (Static Extensions) https://youtrack.jetbrains.com/issue/KT-11968 File.open("data.txt")
21 ഛ (Static Extensions) https://youtrack.jetbrains.com/issue/KT-11968 File.open("data.txt") fun File.Companion.open(name: String)
22 ഛ (Static Extensions) https://youtrack.jetbrains.com/issue/KT-11968 File.open("data.txt") fun File.Companion.open(name: String)
23 ഛ (Static Extensions) https://youtrack.jetbrains.com/issue/KT-11968 File.open("data.txt") fun File.Static.open(name: String)
24 ஸ۩࣌ ܻఠۡ (Collection Literals) https://youtrack.jetbrains.com/issue/KT-43871 cmdArgs = listOf("-language-version", "2.0")
25 ஸ۩࣌ ܻఠۡ (Collection Literals) https://youtrack.jetbrains.com/issue/KT-43871 cmdArgs = [“-language-version", “2.0"]
26 ஸ۩࣌ ܻఠۡ (Collection Literals) https://youtrack.jetbrains.com/issue/KT-43871 cmdArgs = [“-language-version", “2.0”]
val skip = persistentSetOf<Int>(0, 1)
27 ஸ۩࣌ ܻఠۡ (Collection Literals) https://youtrack.jetbrains.com/issue/KT-43871 cmdArgs = [“-language-version", “2.0”]
val skip: PersistentSet<Int> = [0, 1]
28 ஸ۩࣌ ܻఠۡ (Collection Literals) https://youtrack.jetbrains.com/issue/KT-43871 cmdArgs = [“-language-version", “2.0”]
val skip = PersistentSet [0, 1]
29 ܴ ӝ߈ ࠺ҳઑച (Name-Based Restructuring) https://youtrack.jetbrains.com/issue/KT-19627 data class Person(
val fi rstName: String, val lastName: String )
30 ܴ ӝ߈ ࠺ҳઑച (Name-Based Restructuring) https://youtrack.jetbrains.com/issue/KT-19627 EBUBDMBTT1FSTPO WBM
fi STU/BNF4USJOH WBMMBTU/BNF4USJOH WBM fi STU/BNF MBTU/BNF QFSTPO
31 ܴ ӝ߈ ࠺ҳઑച (Name-Based Restructuring) https://youtrack.jetbrains.com/issue/KT-19627 EBUBDMBTT1FSTPO WBM
fi STU/BNF4USJOH WBMMBTU/BNF4USJOH WBM MBTU/BNF fi STU/BNF QFSTPO
32 ஶఖझ ࣻन (Context Receivers) https://youtrack.jetbrains.com/issue/KT-10468 fun process( context: ServiceContext,
request: ServiceRequest ) { val data = request.loadData(context) }
33 ஶఖझ ࣻन (Context Receivers) https://youtrack.jetbrains.com/issue/KT-10468 fun process( context: ServiceContext,
request: ServiceRequest ) { val data = request.loadData(context) } context(ServiceContext) fun processRequest(request: ServiceRequest)
34 ஶఖझ ࣻन (Context Receivers) https://youtrack.jetbrains.com/issue/KT-10468 context(ServiceContext) fun processRequest(request: ServiceRequest)
{ val data = request.loadData() // }
35 ஶఖझ ࣻन (Context Receivers) https://youtrack.jetbrains.com/issue/KT-10468 context(ServiceContext) fun processRequest(request: ServiceRequest)
{ val data = request.loadData() // } context(ServiceContext) fun ServiceRequest.loadData(): Data
36 ݺद ٘ (Explicit Fields) https://youtrack.jetbrains.com/issue/KT-14663 private val _applicationState =
MutableStateFlow(State()) val applicationState: StateFlow<State> get() = _applicationState
37 ݺद ٘ (Explicit Fields) https://youtrack.jetbrains.com/issue/KT-14663 private val _applicationState =
MutableStateFlow(State()) val applicationState: StateFlow<State> get() = _applicationState val applicationState: StateFlow<State> fi eld = MutableStateFlow(State())
38 ؘఠۨ https://github.com/kotlin/dataframe val df = DataFrame.readCSV("KotlinSO.csv")
39 ؘఠۨ https://github.com/kotlin/dataframe val df = DataFrame.readCSV("KotlinSO.csv") val kmp =
df. fi lter { tags?.contains("multiplatform") ?: false }
40 K2 ۿূ٘ীࢲח ۞Ӓੋਸ ਊೞӝ एਕࢲ ೧Ѿ val df =
DataFrame.readCSV("KotlinSO.csv") val kmp = df. fi lter { tags?.contains("multiplatform") ?: false } kmp.add("years") { creationData.year } .groupBy { year } .count()
41 ؘఠۨ
2. Kotlin Multiplatform
43 ݒ֙ ݣ౭ۖಬ ۄ࠳۞ܻח ૐо.
44 ౣܽ ݣ౭ۖಬ ই ߬ఋ ױ҅
45 Kotlin Multiplatform ۄ࠳۞ܻ
46 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ Android Studio ݣ౭ۖಬ
গܻா࣌ਸ ٜ݅Ҋ दޛۨఠա ೞ٘ਝযܳ प೯.
47 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ Xcode Xcodeח ߔӒۄ٘ীࢲ
ࣻ೯ ؽ. Kotlin/Nativeо ઓೞח ߡਸ ࢸ೧ঠ ೣ.
48 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ Kotlin Multiplatform Mobile
উ٘۽٘ झౚ٣য়ীࢲ Kotlin Multiplatform Mobile ۞Ӓੋ ࢸ.
49 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ JDK Android Studioী
೧ ࢸ. Kotlin Plugin Android Studioী ࢸ. সؘܳ ೧ࢲ ߡਸ ୭नച ೧ঠ.
50 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ KDoctor KMMਸ ਤ೧
ਃೠ ജ҃ ח Ѩೞח জ.
51
52 Kotlin Multiplatform Mobileਸ ਤ೧ ਃೠ Ѫ CocoaPods KMM SPM(SwiftPackageManager)ܳ
ਗೞ ঋ. ( ৵!)
53 Kotlin Multiplatform Appਵ۽ ࢜ ۽ંܳ ݅ٞ.
54 ಁః ֎ উ٘۽٘/߄ জۢ بݫੋ ࣽਵ۽ ೣ.
55 জ ֎ ӝࠄਵ۽ androidApp, iosApp, shared۽ জ ֎ ೧.
iOS framework distribution Regular۽ Cocoapods -_-ਸ ࢶఖೡ ࣻ .
56 androidApp উ٘۽٘ ҙ۲ ٘ח androidApp ইې ਤೣ
57 উ٘۽٘ח Compose۽ ࢤࢿ ؽ
58 iosApp iOS ҙ۲ ٘ח iOSAppী ਤೣ.
59 iOSח SwiftUI۽ Compose ইתפ.
60
61 ߡ ܻח যڌѱ ೮ਸөਃ? expect৬ actual shared/src/ commonMain iOS৬
Androidীࢲ ݽف ࢎਊೡ ੋఠಕझܳ expect ఃਕ٘۽ ݅ٞ.
62 ߡ ܻח যڌѱ ೮ਸөਃ? expect৬ actual shared/src/ androidMain Android
ҳഅਸ actual ఃਕ٘ܳ ࠢৈ ҳഅ
63 ߡ ܻח যڌѱ ೮ਸөਃ? expect৬ actual shared/src/ iOSMain iOS
ҳഅਸ actual ఃਕ٘ܳ ࠢৈ ҳഅ
64 KMM for iOSীࢲ ݅աѱ غח ࢚ടٜ ObjC അ Kotlin
ObjC݅ ਗ೧ࢲ ઁցܼ ېझ݅ ਗೞҊ ੋఠಕझܳ ਗೞ ޅೣ. Abstract classܳ न ࢎਊ೧ঠ ೣ. @HinddenFromObjC, @ObjcName ఃਕ٘ܳ ӓਵ۽ ഝਊೞ. @ObjcName(swiftName=“_”) _ח ౠࣻೠ ఃਕ٘. plane.fuel(volume: .Gallos(gallos: 12.5)) न plane.fuel(.Gallons(12.5)) ӝਵ۽ח ܽ Swiftܳ ߄۽ ఋѱೡ Ѫ. Swiftܳ ObjeCܳ ઁ৻ೞҊ ߄ੋ٘ೡ ࣻ হӝী ߊ ࢤೠ ޙઁ. SourceKitten৬ э بҳٜ۽ р ٘ܳ ࢤࢿೞ. ۄੋ ؘݫী ѻ য۰ Suspend suspendח ߔ(completion handler) غҊ ߔ Swiftীࢲ async۽ ഐ оמೞ݅ ஂࣗо ࠛ оמೣ. Flowب ੜ ਗغ ঋ. KMP-NativeCoroutines ۄ࠳۞ܻܳ ഝਊ೧ঠ ೣ. https://github.com/rickclephas/KMP-NativeCoroutines ౣܽ ৻о झਤ ೩ٜ۞ ׳ غ ঋਸ ࣻ য @Throws ఃਕ٘۽ Errorܳ ೧ঠ ೣ.
65 KMM for iOSীࢲ ݅աѱ غח ࢚ടٜ CocoaPods ই ҕधਵ۽
SPM(Swift Package Manager)ܳ ਗೞ ঋ. Gradle API ࣻળীࢲ ܻػ റ ী ਗೠҊ ೣ. (ઁ?) CocoaPodsח ઓࢿਸ ࣗझ۽ оઉ৬ э ࠽٘ী ࢎਊೞӝী ݒ ࠺ബਯ. TouchLab ۄ࠳۞ܻ KMMBridgeܳ ࢎਊद. https://github.com/touchlab/KMMBridge SPMਸ ೞӝ ਤ೧ࢲח Git ܻನషܻ৬ झక౮ ੌ ࣗо ਃೞ. (AWS?) Frozen Global Objectח ӝࠄਵ۽ frozen. Ӕೡ ࣻ ݅ ߸҃ೡ ࣻ হ. @ThreadLocalਸ ࠢݶ freeze ഐ উೣ. Atomicೠ ܐҳઑ ࢎਊ ਃೡ ࣻ . freeze() ഛ ೣࣻܳ ਊ೧ ؘఠܳ ܾ ࣻ Ҋ ಽ ࣻח হ. Global ۽ಌ౭ח ݫੋझۨ٘ীࢲ݅ ࠅ ࣻ .
66 KMM for iOSীࢲ ݅աѱ غח ࢚ടٜ Memory Management झఖ
ۨझ ٣ߡӦ য۵Ҋ, ݫݽܻ ݒפݢо ই উח ঋ. https://youtrack.jetbrains.com/issue/KT-55512 ଵҊ Kotlin Multiplatform Mobileਸ ഝਊೠ ؘ݃ী ٘ۄߡজ ѐߊ ঠӝ Kotlin/Multiplatform for iOS developers : state & future by Salomon Brys
3. Compose for iOS
68 Compose Multiplatform mobile application మ݁ਸ ਊ೧ࢲ द೧ঠ మ݁ https://github.com/JetBrains/compose-multiplatform-ios-android-template
69 Compose for iOSܳ ਤ೧ ਃೠ Ѫ Android Studio Android
জҗ iOS জܳ प೯ೡ ࣻ ח ѐߊ ജ҃. Xcode Xcodeח ߔӒۄ٘ীࢲ ࣻ೯ ؽ. Kotlin/Nativeо ઓೞח ߡਸ ࢸ೧ঠ ೣ. Kotlin Multiplatform Mobile উ٘۽٘ झౚ٣য়ীࢲ Kotlin Multiplatform Mobile ۞Ӓੋ ࢸ. CocoaPods Compose for iOSب SPM(SwiftPackageManager)ܳ ਗೞ ঋ.
70 Compose for iOSܳ ਤ೧ ਃೠ Ѫ
71 shared/src/ commonMain
72 androidApp/ src/ commonMain
73 iosApp/ iosApp
74 iosApp/ iosApp
75 sharedApp/ src/iosMain
76 ߸҃೧ࠁח Compose for iOS TextField ୶о TextFieldܳ ୶оೞח
ؘݽܳ द.
4. Compose for Desktop
78 Compose for Desktop ౠ Cross- Platform ݣ౭ۖಬ ইצ ۽झۖಬਵ۽
࠙ܨ. JVM ఋѶҊ JVM ؋ী ৈ۞ ۖಬীࢲ بח Ѫਸ ۽झۖಬਵ۽ ࢸݺ. SKIKO SKIA ౣܽ ߄ੋ٬ SKIKOী ೧ ۪؊݂. https://github.com/JetBrains/skiko SKIA ಪ ۪؊݂ ઁ ݃ ׳ۄ झܽ ࢫ పझܳ ೞ ݈. Compose Multiplatform IDE support ੋభܻઁ ই٣যա উ٘۽٘ झౚ٣য়ী ࢸ. https://plugins.jetbrains.com/plugin/16541-compose-multiplatform-ide-support IntelliJ IDEA ੋభܻઁ ই٣য 2020.3 ࢚ীࢲ ࢎਊоמ.
79 Compose for Desktop ౠ ଵҊ࢚ You can do desktop
too! By Victor Kropp https://www.youtube.com/watch?v=Mgf_9kxM1BA JDK 15 JDK11ਵ۽ ۽ં ࢤࢿ оמ. ֎౭࠳ ߓನ ಁఃਸ ਤ೧ࢲח 15 ࢚.
80 Compose Multiplatform desktop application New Project۽ दೞӝ
81
82
5. Compose for Web
84 Compose for Web ౠ WebAssembly JavaScriptܳ ॳ ঋҊ WebAssembly۽
प೯. Kotlin/WASM ఋѶ. Compose HTML HTMLਸ ࢤࢿೞח Kotlin/JS ۄ࠳۞ܻب . Compose for Webҗ ޖҙ. Compose Multiplatform IDE support ੋభܻઁ ই٣যա উ٘۽٘ झౚ٣য়ী ࢸ. https://plugins.jetbrains.com/plugin/16541-compose-multiplatform-ide-support IntelliJ IDEA ੋభܻઁ ই٣য 2020.3 ࢚ীࢲ ࢎਊоמ.
85 WASM ઁ https://github.com/Kotlin/kotlin-wasm-examples
86
87