Live Coding Kotlin/Native Snake - - PowerPoint PPT Presentation

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Live Coding Kotlin/Native Snake - - PowerPoint PPT Presentation

Dec 22, 2022 305 likes •1k views

Live Coding Kotlin/Native Snake github.com/dkandalov/kotlin-native-snake @dmitrykandalov Lightning talk What is Kotlin/Native? Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code

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Live Coding Kotlin/Native Snake

@dmitrykandalov github.com/dkandalov/kotlin-native-snake
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⚡ Lightning talk ⚡

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What is Kotlin/Native?

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Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain.

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🤸

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Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain.

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IR

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IR

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IR Compiler frontend

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IR Compiler backend

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IR Compiler backend

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IR Compiler backend

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Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain.

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LLVM

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IR Kotlin/Native

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IR Kotlin/Native

LLVM IR
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IR Kotlin/Native

LLVM IR

Done by LLVM

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C/C++ (clang) Objective-C Rust Swift Julia Graal VM

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Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain.

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kotlin.String java.lang.String

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kotlin.String java.lang.String JS string

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kotlin.String java.lang.String JS string KString

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kotlin.* JVM JS Native

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  • reference counting
  • native-specific code
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Kotlin/Native is an LLVM backend for the Kotlin compiler, runtime implementation, and native code generation facility using the LLVM toolchain.

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Why?

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  • 1. Performance
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  • 2. C APIs
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  • POSIX
  • native OS UI
  • interop between languages
  • C libraries

(search for “awesome-c“)

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  • 3. Kotlin
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End of the ⚡Lightning talk ⚡

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Live coding

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Disclaimer: Very few unit tests 😔

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Disclaimer: This is a happy path 🌉🦅

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There are more native things…

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  • C and Objective-C interop
  • concurrency with workers
  • object.freeze()
  • object.pin()
  • @CName, @ThreadLocal
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  • memory leaks
  • segmentation faults
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Takeaways

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Kotlin/Native

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Kotlin/Native Rust Scala Native

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Kotlin/Native Rust Scala Native

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github.com/dkandalov/rust-snake github.com/dkandalov/scala-native-snake github.com/dkandalov/go-snake

See also:

github.com/dkandalov/graalvm-snake

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It’s early days for Kotlin/Native

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  • slow compilation 😵
  • only CLion & AppCode
  • tools are not perfect yet
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What can you do next?

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Kotlin/Native 😏

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The End

@dmitrykandalov github.com/dkandalov/kotlin-native-snake
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The End

@dmitrykandalov github.com/dkandalov/kotlin-native-snake

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