我在 Kotlin 编译器中遇到了这个令人困惑的错误，我不介意更改我的代码，但我想弄清楚我是否真的做错了什么。我认为它遇到问题的代码是这样的：
inline fun <T> fiberListener(bufferSize: Int = 50,
policy: Channels.OverflowPolicy = Channels.OverflowPolicy.BACKOFF,
singleProducer: Boolean = true,
singleConsumer: Boolean = true,
crossinline action: (T) -> Unit): SendPort<T> {
val channel = Channels.newChannel<T>(bufferSize, policy, singleProducer, singleConsumer)
fiber { channel.forEach(action) }
return channel
}
不知道还能说什么，我可以让它不是内联的，但我认为这段代码应该可以工作。我正在使用带有 Gradle 的 Kotlin 1.0.4。另一方面，我并不积极内联，这实际上是在提供性能改进，我仍然对 crossinline 有点不清楚。但无论哪种方式似乎都应该有效，除了这个内部错误之外，我没有收到任何 IDE 或编译器错误。
Error:(37, 45) Kotlin: [Internal Error] org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: Couldn't inline method call 'fiberListener' into
local final fun <anonymous>(module: org.tenkiv.nexus.thermal.module.ProducerModule): kotlin.Unit defined in org.tenkiv.nexus.thermal.control_point.StateMaintainer.<init>[AnonymousFunctionDescriptor@392d1483]
{ module ->
module.levelSensor?.addListener(fiberListener { onLevelEvent() })
}
Cause: fiberListener$default (ILco/paralleluniverse/strands/channels/Channels$OverflowPolicy;ZZLkotlin/jvm/functions/Function1;ILjava/lang/Object;)Lco/paralleluniverse/strands/channels/SendPort;:
L0
ALOAD 6
IFNULL L1
NEW java/lang/UnsupportedOperationException
DUP
LDC "Super calls with default arguments not supported in this target, function: fiberListener"
INVOKESPECIAL java/lang/UnsupportedOperationException.<init> (Ljava/lang/String;)V
ATHROW
L1
ILOAD 5
ICONST_1
IAND
IFEQ L2
L3
LINENUMBER 13 L3
BIPUSH 50
ISTORE 0
L2
ILOAD 5
ICONST_2
IAND
IFEQ L4
L5
LINENUMBER 14 L5
GETSTATIC co/paralleluniverse/strands/channels/Channels$OverflowPolicy.BACKOFF : Lco/paralleluniverse/strands/channels/Channels$OverflowPolicy;
ASTORE 1
L4
ILOAD 5
ICONST_4
IAND
IFEQ L6
L7
LINENUMBER 15 L7
ICONST_1
ISTORE 2
L6
ILOAD 5
BIPUSH 8
IAND
IFEQ L8
L9
LINENUMBER 16 L9
ICONST_1
ISTORE 3
L8
L10
L11
ALOAD 1
LDC "policy"
INVOKESTATIC kotlin/jvm/internal/Intrinsics.checkParameterIsNotNull (Ljava/lang/Object;Ljava/lang/String;)V
ALOAD 4
LDC "action"
INVOKESTATIC kotlin/jvm/internal/Intrinsics.checkParameterIsNotNull (Ljava/lang/Object;Ljava/lang/String;)V
L12
LINENUMBER 40 L12
ILOAD 0
ALOAD 1
ILOAD 2
ILOAD 3
INVOKESTATIC co/paralleluniverse/strands/channels/Channels.newChannel (ILco/paralleluniverse/strands/channels/Channels$OverflowPolicy;ZZ)Lco/paralleluniverse/strands/channels/Channel;
ASTORE 6
L13
L14
LINENUMBER 41 L14
NEW org/tenkiv/nexus/computer/QuasarKt$fiberListener$1
DUP
ALOAD 6
ALOAD 4
INVOKESPECIAL org/tenkiv/nexus/computer/QuasarKt$fiberListener$1.<init> (Lco/paralleluniverse/strands/channels/Channel;Lkotlin/jvm/functions/Function1;)V
CHECKCAST kotlin/jvm/functions/Function0
INVOKESTATIC co/paralleluniverse/kotlin/KotlinKt.fiber (Lkotlin/jvm/functions/Function0;)Lco/paralleluniverse/fibers/Fiber;
POP
L15
LINENUMBER 42 L15
ALOAD 6
CHECKCAST co/paralleluniverse/strands/channels/SendPort
DUP
LDC "channel"
INVOKESTATIC kotlin/jvm/internal/Intrinsics.checkExpressionValueIsNotNull (Ljava/lang/Object;Ljava/lang/String;)V
ARETURN
L16
L17
ARETURN
LOCALVARIABLE channel Lco/paralleluniverse/strands/channels/Channel; L13 L17 6
LOCALVARIABLE bufferSize I L0 L17 0
LOCALVARIABLE policy Lco/paralleluniverse/strands/channels/Channels$OverflowPolicy; L0 L17 1
LOCALVARIABLE singleProducer Z L0 L17 2
LOCALVARIABLE singleConsumer Z L0 L17 3
LOCALVARIABLE action Lkotlin/jvm/functions/Function1; L0 L17 4
LOCALVARIABLE $i$f$fiberListener I L10 L17 5
MAXSTACK = 4
MAXLOCALS = 7
Cause: Parameter specified as non-null is null: method org.jetbrains.kotlin.codegen.inline.ParametersBuilder.addCapturedParam, parameter original
File being compiled and position: (37,45) in /Users/zjuhasz/Git/Nexus_Brain/src/main/kotlin/org/tenkiv/nexus/thermal/control_point/StateMaintainer.kt
PsiElement: fiberListener { onLevelEvent() }
The root cause was thrown at: ParametersBuilder.kt:-1
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.throwCompilationException(InlineCodegen.java:172)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.genCallInner(InlineCodegen.java:158)
at org.jetbrains.kotlin.codegen.CallGenerator.genCall(CallGenerator.kt:100)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2625)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2583)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:44)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:23)
at org.jetbrains.kotlin.codegen.OperationStackValue.putSelector(StackValue.kt:65)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:109)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:102)
at org.jetbrains.kotlin.codegen.CallGenerator$DefaultCallGenerator.genValueAndPut(CallGenerator.kt:58)
at org.jetbrains.kotlin.codegen.CallBasedArgumentGenerator.generateExpression(CallBasedArgumentGenerator.java:73)
at org.jetbrains.kotlin.codegen.ArgumentGenerator.generate(ArgumentGenerator.kt:59)
at org.jetbrains.kotlin.codegen.CallBasedArgumentGenerator.generate(CallBasedArgumentGenerator.java:60)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2605)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2583)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:44)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:23)
at org.jetbrains.kotlin.codegen.OperationStackValue.putSelector(StackValue.kt:65)
at org.jetbrains.kotlin.codegen.CoercionValue.putSelector(StackValue.kt:28)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:109)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:102)
at org.jetbrains.kotlin.codegen.StackValue$StackValueWithSimpleReceiver.putReceiver(StackValue.java:1507)
at org.jetbrains.kotlin.codegen.StackValueWithLeaveTask.putReceiver(StackValue.kt:53)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:107)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:102)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.gen(ExpressionCodegen.java:324)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.returnExpression(ExpressionCodegen.java:2066)
at org.jetbrains.kotlin.codegen.FunctionGenerationStrategy$FunctionDefault.doGenerateBody(FunctionGenerationStrategy.java:50)
at org.jetbrains.kotlin.codegen.FunctionGenerationStrategy$CodegenBased.generateBody(FunctionGenerationStrategy.java:72)
at org.jetbrains.kotlin.codegen.FunctionCodegen.generateMethodBody(FunctionCodegen.java:378)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.generateMethodBody(InlineCodegen.java:512)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.generateLambdaBody(InlineCodegen.java:477)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.generateClosuresBodies(InlineCodegen.java:456)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.inlineCall(InlineCodegen.java:365)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.genCallInner(InlineCodegen.java:149)
at org.jetbrains.kotlin.codegen.CallGenerator.genCall(CallGenerator.kt:100)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2625)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.invokeMethodWithArguments(ExpressionCodegen.java:2583)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:44)
at org.jetbrains.kotlin.codegen.Callable$invokeMethodWithArguments$1.invoke(Callable.kt:23)
at org.jetbrains.kotlin.codegen.OperationStackValue.putSelector(StackValue.kt:65)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:109)
at org.jetbrains.kotlin.codegen.StackValue.put(StackValue.java:102)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.generateBlock(ExpressionCodegen.java:1727)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.generateBlock(ExpressionCodegen.java:1676)
at org.jetbrains.kotlin.codegen.CodegenStatementVisitor.visitBlockExpression(CodegenStatementVisitor.java:56)
at org.jetbrains.kotlin.codegen.CodegenStatementVisitor.visitBlockExpression(CodegenStatementVisitor.java:22)
at org.jetbrains.kotlin.psi.KtBlockExpression.accept(KtBlockExpression.java:44)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.genQualified(ExpressionCodegen.java:283)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.genStatement(ExpressionCodegen.java:342)
at org.jetbrains.kotlin.codegen.ExpressionCodegen.gen(ExpressionCodegen.java:312)
at org.jetbrains.kotlin.codegen.MemberCodegen.generateInitializers(MemberCodegen.java:377)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen.generateInitializers(ImplementationBodyCodegen.java:1099)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen.generatePrimaryConstructorImpl(ImplementationBodyCodegen.java:1038)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen.access$300(ImplementationBodyCodegen.java:92)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen$3.doGenerateBody(ImplementationBodyCodegen.java:946)
at org.jetbrains.kotlin.codegen.FunctionGenerationStrategy$CodegenBased.generateBody(FunctionGenerationStrategy.java:72)
at org.jetbrains.kotlin.codegen.FunctionCodegen.generateMethodBody(FunctionCodegen.java:378)
at org.jetbrains.kotlin.codegen.FunctionCodegen.generateMethod(FunctionCodegen.java:213)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen.generatePrimaryConstructor(ImplementationBodyCodegen.java:942)
at org.jetbrains.kotlin.codegen.ImplementationBodyCodegen.generateConstructors(ImplementationBodyCodegen.java:397)
at org.jetbrains.kotlin.codegen.ClassBodyCodegen.generateBody(ClassBodyCodegen.java:79)
at org.jetbrains.kotlin.codegen.MemberCodegen.generate(MemberCodegen.java:118)
at org.jetbrains.kotlin.codegen.MemberCodegen.genClassOrObject(MemberCodegen.java:232)
at org.jetbrains.kotlin.codegen.PackageCodegen.generateClassOrObject(PackageCodegen.java:145)
at org.jetbrains.kotlin.codegen.PackageCodegen.generateFile(PackageCodegen.java:98)
at org.jetbrains.kotlin.codegen.PackageCodegen.generate(PackageCodegen.java:61)
at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.generatePackage(KotlinCodegenFacade.java:99)
at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.doGenerateFiles(KotlinCodegenFacade.java:77)
at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.compileCorrectFiles(KotlinCodegenFacade.java:44)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.generate(KotlinToJVMBytecodeCompiler.kt:452)
at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules(KotlinToJVMBytecodeCompiler.kt:150)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:183)
at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
at org.jetbrains.kotlin.cli.common.CLICompiler.exec(CLICompiler.java:199)
at org.jetbrains.kotlin.cli.common.CLICompiler.exec(CLICompiler.java:154)
at org.jetbrains.kotlin.cli.common.CLICompiler.execAndOutputXml(CLICompiler.java:73)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$remoteIncrementalCompile$1.invoke(CompileServiceImpl.kt:247)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$remoteIncrementalCompile$1.invoke(CompileServiceImpl.kt:70)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$1$1.invoke(CompileServiceImpl.kt:421)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$1$1.invoke(CompileServiceImpl.kt:70)
at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:454)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.access$checkedCompile(CompileServiceImpl.kt:70)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$1.invoke(CompileServiceImpl.kt:420)
at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$1.invoke(CompileServiceImpl.kt:70)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.ifAlive(CompileServiceImpl.kt:565)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.ifAlive$default(CompileServiceImpl.kt:504)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:411)
at org.jetbrains.kotlin.daemon.CompileServiceImpl.remoteIncrementalCompile(CompileServiceImpl.kt:244)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$254(TCPTransport.java:683)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler$$Lambda$1/2057391342.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: Parameter specified as non-null is null: method org.jetbrains.kotlin.codegen.inline.ParametersBuilder.addCapturedParam, parameter original
at org.jetbrains.kotlin.codegen.inline.ParametersBuilder.addCapturedParam(ParametersBuilder.kt)
at org.jetbrains.kotlin.codegen.inline.LambdaInfo.addAllParameters(LambdaInfo.java:158)
at org.jetbrains.kotlin.codegen.inline.MethodInliner$1.visitMethodInsn(MethodInliner.java:223)
at org.jetbrains.org.objectweb.asm.tree.MethodInsnNode.accept(MethodInsnNode.java:133)
at org.jetbrains.org.objectweb.asm.tree.InsnList.accept(InsnList.java:162)
at org.jetbrains.org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:817)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:311)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:111)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:95)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.inlineMethod(AnonymousObjectTransformer.java:230)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.inlineMethodAndUpdateGlobalResult(AnonymousObjectTransformer.java:191)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.doTransform(AnonymousObjectTransformer.java:144)
at org.jetbrains.kotlin.codegen.inline.MethodInliner$1.handleAnonymousObjectRegeneration(MethodInliner.java:180)
at org.jetbrains.kotlin.codegen.inline.MethodInliner$1.anew(MethodInliner.java:199)
at org.jetbrains.org.objectweb.asm.commons.InstructionAdapter.visitTypeInsn(InstructionAdapter.java:478)
at org.jetbrains.org.objectweb.asm.tree.TypeInsnNode.accept(TypeInsnNode.java:83)
at org.jetbrains.org.objectweb.asm.tree.InsnList.accept(InsnList.java:162)
at org.jetbrains.org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:817)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:311)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:111)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:95)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.inlineMethod(AnonymousObjectTransformer.java:230)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.inlineMethodAndUpdateGlobalResult(AnonymousObjectTransformer.java:191)
at org.jetbrains.kotlin.codegen.inline.AnonymousObjectTransformer.doTransform(AnonymousObjectTransformer.java:144)
at org.jetbrains.kotlin.codegen.inline.MethodInliner$1.handleAnonymousObjectRegeneration(MethodInliner.java:180)
at org.jetbrains.kotlin.codegen.inline.MethodInliner$1.anew(MethodInliner.java:199)
at org.jetbrains.org.objectweb.asm.commons.InstructionAdapter.visitTypeInsn(InstructionAdapter.java:478)
at org.jetbrains.org.objectweb.asm.tree.TypeInsnNode.accept(TypeInsnNode.java:83)
at org.jetbrains.org.objectweb.asm.tree.InsnList.accept(InsnList.java:162)
at org.jetbrains.org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:817)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:311)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:111)
at org.jetbrains.kotlin.codegen.inline.MethodInliner.doInline(MethodInliner.java:95)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.inlineCall(InlineCodegen.java:392)
at org.jetbrains.kotlin.codegen.inline.InlineCodegen.genCallInner(InlineCodegen.java:149)
... 107 more