Kotlin iOS Debugging

Debugging tools for iOS devs using Kotlin Native and Multiplatform

Transcript

1. Kotlin iOS Debugging
   Kevin Galligan
   

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2. Partner at
   

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9. Features
   • Kotlin Source recognition and coloring
   • Add breakpoints
   • Interactive debugging
   

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10. Xcode Demo!
    

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11. Dev Version
    about 1/3 slower than earlier version
    

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12. 3 Main Pieces
    

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13. Kotlin.xcplugindata
    tells Xcode that *.kt is source
    

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14. Kotlin.xclangspec
    color file (tweaked from Java, TBH)
    

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15. konan_lldb.py
    lldb formatter (where the magic happens)
    

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21. Adding Kotlin Files to Xcode
    spoilers: the hard part
    

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22. xcode doesn’t “see” your folders
    

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23. you must add them
    

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24. Source or Resource?
    

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25. Options
    

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26. 1) Manually Add Them
    spoiler: meh
    

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27. 2) Gradle Plugin
    better
    

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28. xcode {
    projectPath = "../../iosApp/iosApp.xcodeproj"
    target = "iosApp"
    }
    apply plugin: 'co.touchlab.kotlinxcodesync'
    

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30. Work in progress!
    

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31. 3) Cocoapods
    probably best option in near future…
    

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32. https://github.com/touchlab/DroidconKotlin/
    

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33. AppCode?
    

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35. AppCode Demo!
    

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36. PR Ready!
    almost
    

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39. What’s Next?
    

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40. Performance!
    

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41. Better Formats
    

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42. this is a map?
    

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43. Other Stuff
    

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44. RUNTIME_USED
    int32_t Konan_DebugObjectToUtf8Array(KRef obj, char* buffer, int bufferSize);
    // Print to console string representation of an object.
    RUNTIME_USED
    int32_t Konan_DebugPrint(KRef obj);
    // Returns 1 if obj refers to an array, string or binary blob and 0 otherwise.
    RUNTIME_USED int Konan_DebugIsArray(KRef obj);
    // Returns number of fields in an objects, or elements in an array.
    RUNTIME_USED int Konan_DebugGetFieldCount(KRef obj);
    // Compute type of field or an array element at the index, or 0, if incorrect,
    // see Konan_RuntimeType.
    RUNTIME_USED int Konan_DebugGetFieldType(KRef obj, int index);
    // Compute address of field or an array element at the index, or null, if
    incorrect.
    RUNTIME_USED void* Konan_DebugGetFieldAddress(KRef obj, int index);
    // Compute address of field or an array element at the index, or null, if
    incorrect.
    RUNTIME_USED const char* Konan_DebugGetFieldName(KRef obj, int index);
    

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45. kevin@touchlab.co
    @kpgalligan
    https://medium.com/@kpgalligan
    

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