Error: Found LocalVariables do not refer to a variable with the same name (Kotlin inline function)

[n3o59hf]

After updating RoboVM 1.11.0 -> 1.13.0, LibGDX 1.7.1 -> 1.9.1 and Kotlin 1.0.0-beta-2423 -> 1.0.0-rc-1036, iOS compilation started to fail with exception:

[ERROR] Couldn't compile app
java.lang.IllegalStateException: Found LocalVariables do not refer to a variable with the same name: [LocalVariable [name=listener$iv, index=2, startUnit=$stack0 = new com.edibleday.coindrag.scene.CoinOverlay$click$1, endUnit=l6 = $stack0, descriptor=Lkotlin/jvm/functions/Function0;], LocalVariable [name=listener, index=2, startUnit=l0 := @this: com.edibleday.coindrag.scene.CoinOverlay, endUnit=null, descriptor=Lkotlin/jvm/functions/Function0;]]
    at soot.toolkits.scalar.LocalSplitter.findLocalVariables(LocalSplitter.java:325)
    at soot.toolkits.scalar.LocalSplitter.mergeWebs(LocalSplitter.java:258)
    at soot.toolkits.scalar.LocalSplitter.internalTransform(LocalSplitter.java:185)
    at soot.BodyTransformer.transform(BodyTransformer.java:51)
    at soot.Transform.apply(Transform.java:97)
    at soot.JimpleBodyPack.applyPhaseOptions(JimpleBodyPack.java:57)
    at soot.JimpleBodyPack.internalApply(JimpleBodyPack.java:89)
    at soot.Pack.apply(Pack.java:117)
    at soot.coffi.CoffiMethodSource.getBody(CoffiMethodSource.java:115)
    at soot.SootMethod.getBodyFromMethodSource(SootMethod.java:87)
    at soot.SootMethod.retrieveActiveBody(SootMethod.java:321)
    at org.robovm.compiler.plugin.lambda.LambdaPlugin.transformMethod(LambdaPlugin.java:94)
    at org.robovm.compiler.plugin.lambda.LambdaPlugin.beforeClass(LambdaPlugin.java:82)
    at org.robovm.compiler.ClassCompiler.compile(ClassCompiler.java:705)
    at org.robovm.compiler.ClassCompiler.compile(ClassCompiler.java:297)
    at org.robovm.compiler.AppCompiler.compile(AppCompiler.java:301)
    at org.robovm.compiler.AppCompiler.compile(AppCompiler.java:384)
    at org.robovm.compiler.AppCompiler.compile(AppCompiler.java:444)
    at org.robovm.compiler.AppCompiler.build(AppCompiler.java:773)
    at org.robovm.idea.compilation.RoboVmCompilerThread.doCompile(RoboVmCompilerThread.java:53)
    at org.robovm.idea.compilation.RoboVmCompilerThread.run(RoboVmCompilerThread.java:59)

CoinOverlay's method click() and it's only usage (in same class):

    inline fun click(crossinline listener: () -> Unit): ClickListener {
        return object : ClickListener() {
            override fun clicked(event: InputEvent?, x: Float, y: Float) {
                super.clicked(event, x, y)
                listener()
            }
        }
    }

    fun Actor.onClick(listener: () -> Unit) {
        this.addListener(click(listener))
    }

Possibly relevant bytecode:

  public final com.badlogic.gdx.scenes.scene2d.utils.ClickListener click(kotlin.jvm.functions.Function0<kotlin.Unit>);
    Code:
       0: aload_1
       1: ldc_w         #757                // String listener
       4: invokestatic  #231                // Method kotlin/jvm/internal/Intrinsics.checkParameterIsNotNull:(Ljava/lang/Object;Ljava/lang/String;)V
       7: new           #759                // class com/edibleday/coindrag/scene/CoinOverlay$click$1
      10: dup
      11: aload_1
      12: invokespecial #760                // Method com/edibleday/coindrag/scene/CoinOverlay$click$1."<init>":(Lkotlin/jvm/functions/Function0;)V
      15: checkcast     #762                // class com/badlogic/gdx/scenes/scene2d/utils/ClickListener
      18: areturn

  public final void onClick(com.badlogic.gdx.scenes.scene2d.Actor, kotlin.jvm.functions.Function0<kotlin.Unit>);
    Code:
       0: aload_1
       1: ldc_w         #765                // String $receiver
       4: invokestatic  #231                // Method kotlin/jvm/internal/Intrinsics.checkParameterIsNotNull:(Ljava/lang/Object;Ljava/lang/String;)V
       7: aload_2
       8: ldc_w         #757                // String listener
      11: invokestatic  #231                // Method kotlin/jvm/internal/Intrinsics.checkParameterIsNotNull:(Ljava/lang/Object;Ljava/lang/String;)V
      14: aload_1
      15: aload_0
      16: astore_3
      17: astore        5
      19: nop
      20: new           #759                // class com/edibleday/coindrag/scene/CoinOverlay$click$1
      23: dup
      24: aload_2
      25: invokespecial #760                // Method com/edibleday/coindrag/scene/CoinOverlay$click$1."<init>":(Lkotlin/jvm/functions/Function0;)V
      28: checkcast     #762                // class com/badlogic/gdx/scenes/scene2d/utils/ClickListener
      31: astore        6
      33: aload         5
      35: aload         6
      37: checkcast     #767                // class com/badlogic/gdx/scenes/scene2d/EventListener
      40: invokevirtual #771                // Method com/badlogic/gdx/scenes/scene2d/Actor.addListener:(Lcom/badlogic/gdx/scenes/scene2d/EventListener;)Z
      43: pop
      44: return

public final class com.edibleday.coindrag.scene.CoinOverlay$click$1 extends com.badlogic.gdx.scenes.scene2d.utils.ClickListener {
  final kotlin.jvm.functions.Function0 $listener;

  public void clicked(com.badlogic.gdx.scenes.scene2d.InputEvent, float, float);
    Code:
       0: aload_0
       1: aload_1
       2: fload_2
       3: fload_3
       4: invokespecial #14                 // Method com/badlogic/gdx/scenes/scene2d/utils/ClickListener.clicked:(Lcom/badlogic/gdx/scenes/scene2d/InputEvent;FF)V
       7: aload_0
       8: getfield      #18                 // Field $listener:Lkotlin/jvm/functions/Function0;
      11: invokeinterface #24,  1           // InterfaceMethod kotlin/jvm/functions/Function0.invoke:()Ljava/lang/Object;
      16: pop
      17: return

  public com.edibleday.coindrag.scene.CoinOverlay$click$1(kotlin.jvm.functions.Function0);
    Code:
       0: aload_0
       1: aload_1
       2: putfield      #18                 // Field $listener:Lkotlin/jvm/functions/Function0;
       5: aload_0
       6: invokespecial #36                 // Method com/badlogic/gdx/scenes/scene2d/utils/ClickListener."<init>":()V
       9: return

Same error happens in other places where inline functions are used.

[n3o59hf]

Minimal test project in attachment.
To reproduce exception, run ./gradlew build launchConsole --stacktrace in terminal (happens in both Linux and MacOS)

inline_clean.zip

Problem.kt:

package com.mycompany.myapp

/**
 * Created by elviss on 16.5.2.
 */


object Main {
    @JvmStatic fun main(args: Array<String>) {

        println(ProblemTest().functionCallingInline { "Hello!" })

    }
}

class ProblemTest {

    inline fun inlineFunction(inlineFunctionArgument: () -> String) = inlineFunctionArgument()
    fun functionCallingInline(normalFunctionArgument: () -> String) = inlineFunction (normalFunctionArgument)
}

Results in exception:

...
java.lang.IllegalStateException: Found LocalVariables do not refer to a variable with the same name: [LocalVariable [name=inlineFunctionArgument$iv, index=1, startUnit=$stack0 = l1, endUnit=return $stack0, descriptor=Lkotlin/jvm/functions/Function0;], LocalVariable [name=normalFunctionArgument, index=1, startUnit=l0 := @this: com.mycompany.myapp.ProblemTest, endUnit=null, descriptor=Lkotlin/jvm/functions/Function0;]]
...

[n3o59hf]

Issue does not happen with older Kotlin versions (tested with 1.0.0-beta-4589)

[badlogic]

Awesome, thanks a lot for the repro case. We'll try to have a look asap.

[orangy]

Should be fixed in Kotlin EAP build 1050: bintray.com/kotlin/kotlin-eap/kotlin/1.0.0-rc-1050/view

[badlogic]

Wow, awesome! Thanks a lot @orangy!