@Contextual does not work with IR compiler

[benkuly]

Describe the bug I use @Contextual at many places in my multiplatform library. It works fine and all my unit tests are working with jvm und js(LEGACY), but not with js(IR) and native targets. I get the following stacktrace when building the project:

e: java.lang.IllegalStateException: Not found Idx for public net.folivo.trixnity.core.model.events/Event|null[0]
        at org.jetbrains.kotlin.backend.common.serialization.IrFileDeserializer.loadTopLevelDeclarationProto(IrFileDeserializer.kt:45)
        at org.jetbrains.kotlin.backend.common.serialization.IrFileDeserializer.deserializeDeclaration$ir_serialization_common(IrFileDeserializer.kt:36)
        at org.jetbrains.kotlin.backend.common.serialization.FileDeserializationState.deserializeAllFileReachableTopLevel(IrFileDeserializer.kt:127)
        at org.jetbrains.kotlin.backend.common.serialization.ModuleDeserializationState.deserializeReachableDeclarations(BasicIrModuleDeserializer.kt:163)
        at org.jetbrains.kotlin.backend.common.serialization.KotlinIrLinker.deserializeAllReachableTopLevels(KotlinIrLinker.kt:105)
        at org.jetbrains.kotlin.backend.common.serialization.KotlinIrLinker.findDeserializedDeclarationForSymbol(KotlinIrLinker.kt:124)
        at org.jetbrains.kotlin.backend.common.serialization.KotlinIrLinker.getDeclaration(KotlinIrLinker.kt:162)
        at org.jetbrains.kotlin.ir.util.ExternalDependenciesGeneratorKt.getDeclaration(ExternalDependenciesGenerator.kt:61)
        at org.jetbrains.kotlin.ir.util.ExternalDependenciesGenerator.generateUnboundSymbolsAsDependencies(ExternalDependenciesGenerator.kt:48)
        at org.jetbrains.kotlin.ir.backend.js.KlibKt.loadIr(klib.kt:288)
        at org.jetbrains.kotlin.ir.backend.js.CompilerKt.compile(compiler.kt:57)
        at org.jetbrains.kotlin.ir.backend.js.CompilerKt.compile$default(compiler.kt:36)
        at org.jetbrains.kotlin.cli.js.K2JsIrCompiler.doExecute(K2JsIrCompiler.kt:256)
        at org.jetbrains.kotlin.cli.js.K2JSCompiler.doExecute(K2JSCompiler.java:182)
        at org.jetbrains.kotlin.cli.js.K2JSCompiler.doExecute(K2JSCompiler.java:75)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:90)
        at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
        at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1575)
        at jdk.internal.reflect.GeneratedMethodAccessor99.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
        at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
        at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

To Reproduce Here is a minimal example from my code base.

Expected behavior @Contextual should work with IR compiler as it does without.

Environment

• Kotlin version: 1.5.20
• Library version: 1.2.1

[pdvrieze]

Your branch doesn't have IR enable in the repository, but it seems a strange one indeed. Clearly a bug in the (still experimental) JS IR backend.

[benkuly]

Your branch doesn't have IR enable in the repository, but it seems a strange one indeed. Clearly a bug in the (still experimental) JS IR backend.

IR is enabled (for JS explicitly and native for default as far as I know): https://gitlab.com/benkuly/trixnity/-/blob/ir-compiler-issues/trixnity-core/build.gradle.kts

[pdvrieze]

@benkuly Odd, I had to fiddle about to get it to work.

[benkuly]

Do you have an idea? I could make a PR, but I don't know where to start...

[benkuly]

With Kotlin 1.5.30 this does also affect the jvm target with the following exception. I also updated the example branch linked above.

org.jetbrains.kotlin.backend.common.BackendException: Backend Internal error: Exception during IR lowering
File being compiled: /home/benkuly/repos/trixnity/trixnity-core/src/commonMain/kotlin/net/folivo/trixnity/core/model/events/UnsignedData.kt
The root cause java.lang.RuntimeException was thrown at: org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:50)
    at org.jetbrains.kotlin.backend.common.CodegenUtil.reportBackendException(CodegenUtil.kt:239)
    at org.jetbrains.kotlin.backend.common.CodegenUtil.reportBackendException$default(CodegenUtil.kt:235)
    at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invokeSequential(performByIrFile.kt:68)
    at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invoke(performByIrFile.kt:55)
    at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invoke(performByIrFile.kt:41)
    at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
    at org.jetbrains.kotlin.backend.common.phaser.CompositePhase.invoke(PhaseBuilders.kt:29)
    at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
    at org.jetbrains.kotlin.backend.common.phaser.CompositePhase.invoke(PhaseBuilders.kt:29)
    at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
    at org.jetbrains.kotlin.backend.common.phaser.CompilerPhaseKt.invokeToplevel(CompilerPhase.kt:43)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.doGenerateFilesInternal(JvmIrCodegenFactory.kt:191)
    at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.generateModule(JvmIrCodegenFactory.kt:60)
    at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.compileCorrectFiles(KotlinCodegenFacade.java:35)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.generate(KotlinToJVMBytecodeCompiler.kt:321)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:113)
    at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli$default(KotlinToJVMBytecodeCompiler.kt:56)
    at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:169)
    at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
    at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:92)
    at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
    at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
    at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:412)
    at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:112)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally(IncrementalCompilerRunner.kt:358)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally$default(IncrementalCompilerRunner.kt:300)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl$rebuild(IncrementalCompilerRunner.kt:119)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl(IncrementalCompilerRunner.kt:170)
    at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:81)
    at org.jetbrains.kotlin.daemon.CompileServiceImplBase.execIncrementalCompiler(CompileServiceImpl.kt:607)
    at org.jetbrains.kotlin.daemon.CompileServiceImplBase.access$execIncrementalCompiler(CompileServiceImpl.kt:96)
    at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1658)
    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:498)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
    at sun.rmi.transport.Transport$1.run(Transport.java:200)
    at sun.rmi.transport.Transport$1.run(Transport.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Exception while generating code for:
FUN name:write$Self visibility:public modality:FINAL <> (self:net.folivo.trixnity.core.model.events.UnsignedData, output:kotlinx.serialization.encoding.CompositeEncoder, serialDesc:kotlinx.serialization.descriptors.SerialDescriptor) returnType:kotlin.Unit
  annotations:
    JvmStatic
  VALUE_PARAMETER name:self index:0 type:net.folivo.trixnity.core.model.events.UnsignedData
  VALUE_PARAMETER name:output index:1 type:kotlinx.serialization.encoding.CompositeEncoder
  VALUE_PARAMETER name:serialDesc index:2 type:kotlinx.serialization.descriptors.SerialDescriptor
  BLOCK_BODY
    WHEN type=kotlin.Unit origin=null
      BRANCH
        if: WHEN type=kotlin.Boolean origin=null
          BRANCH
            if: CALL 'public open fun shouldEncodeElementDefault (descriptor: kotlinx.serialization.descriptors.SerialDescriptor, index: kotlin.Int): kotlin.Boolean declared in kotlinx.serialization.encoding.CompositeEncoder' type=kotlin.Boolean origin=null
              $this: GET_VAR 'output: kotlinx.serialization.encoding.CompositeEncoder declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlinx.serialization.encoding.CompositeEncoder origin=null
              descriptor: GET_VAR 'serialDesc: kotlinx.serialization.descriptors.SerialDescriptor declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlinx.serialization.descriptors.SerialDescriptor origin=null
              index: CONST Int type=kotlin.Int value=0
            then: CONST Boolean type=kotlin.Boolean value=true
          BRANCH
            if: CONST Boolean type=kotlin.Boolean value=true
            then: CALL 'public final fun not (): kotlin.Boolean [operator] declared in kotlin.Boolean' type=kotlin.Boolean origin=EXCLEQ
              $this: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EXCLEQ
                arg0: BLOCK type=@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? origin=null
                  GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:redactedBecause type:@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? visibility:private [final]' type=@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? origin=null
                    receiver: GET_VAR 'self: net.folivo.trixnity.core.model.events.UnsignedData declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=net.folivo.trixnity.core.model.events.UnsignedData origin=null
                arg1: CONST Null type=kotlin.Nothing? value=null
        then: CALL 'public abstract fun encodeNullableSerializableElement <T> (descriptor: kotlinx.serialization.descriptors.SerialDescriptor, index: kotlin.Int, serializer: kotlinx.serialization.SerializationStrategy<T of kotlinx.serialization.encoding.CompositeEncoder.encodeNullableSerializableElement>, value: T of kotlinx.serialization.encoding.CompositeEncoder.encodeNullableSerializableElement?): kotlin.Unit declared in kotlinx.serialization.encoding.CompositeEncoder' type=kotlin.Unit origin=null
          <T>: @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?
          $this: GET_VAR 'output: kotlinx.serialization.encoding.CompositeEncoder declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlinx.serialization.encoding.CompositeEncoder origin=null
          descriptor: GET_VAR 'serialDesc: kotlinx.serialization.descriptors.SerialDescriptor declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlinx.serialization.descriptors.SerialDescriptor origin=null
          index: CONST Int type=kotlin.Int value=0
          serializer: CONSTRUCTOR_CALL 'public constructor <init> (serializableClass: kotlin.reflect.KClass<T of kotlinx.serialization.ContextualSerializer>, fallbackSerializer: kotlinx.serialization.KSerializer<T of kotlinx.serialization.ContextualSerializer>?, typeArgumentsSerializers: kotlin.Array<kotlinx.serialization.KSerializer<*>>) [primary] declared in kotlinx.serialization.ContextualSerializer' type=kotlinx.serialization.ContextualSerializer<@[Contextual] net.folivo.trixnity.core.model.events.Event<*>?> origin=null
            <class: T>: @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?
            serializableClass: CLASS_REFERENCE 'CLASS CLASS name:Event modality:SEALED visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<*>
            fallbackSerializer: CALL 'public final fun <get-nullable> <T> (): kotlinx.serialization.KSerializer<T of kotlinx.serialization.builtins.BuiltinSerializersKt.<get-nullable>?> declared in kotlinx.serialization.builtins.BuiltinSerializersKt' type=kotlinx.serialization.KSerializer<@[Contextual] net.folivo.trixnity.core.model.events.Event<*>?> origin=null
              <T>: @[Contextual] net.folivo.trixnity.core.model.events.Event<*>
              $receiver: CALL 'public final fun serializer <T0> (typeSerial0: kotlinx.serialization.KSerializer<T0 of net.folivo.trixnity.core.model.events.Event.Companion.serializer>): kotlinx.serialization.KSerializer<net.folivo.trixnity.core.model.events.Event<T0 of net.folivo.trixnity.core.model.events.Event.Companion.serializer>> declared in net.folivo.trixnity.core.model.events.Event.Companion' type=kotlinx.serialization.KSerializer<net.folivo.trixnity.core.model.events.Event<T0 of net.folivo.trixnity.core.model.events.Event.Companion.serializer>> origin=null
                <T0>: @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?
                $this: GET_FIELD 'FIELD FIELD_FOR_OBJECT_INSTANCE name:Companion type:net.folivo.trixnity.core.model.events.Event.Companion visibility:public [final,static]' type=net.folivo.trixnity.core.model.events.Event.Companion origin=null
            typeArgumentsSerializers: BLOCK type=kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> origin=null
              VAR IR_TEMPORARY_VARIABLE name:tmp0 type:kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> [val]
                CALL 'public final fun arrayOfNulls <T> (size: kotlin.Int): kotlin.Array<T of kotlin.arrayOfNulls?> declared in kotlin' type=kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> origin=null
                  <T>: kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>
                  size: CONST Int type=kotlin.Int value=1
              CALL 'public final fun set (index: kotlin.Int, value: T of kotlin.Array): kotlin.Unit [operator] declared in kotlin.Array' type=kotlin.Unit origin=null
                $this: GET_VAR 'val tmp0: kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> [val] declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> origin=null
                index: CONST Int type=kotlin.Int value=0
                value: CONSTRUCTOR_CALL 'public constructor <init> (baseClass: kotlin.reflect.KClass<T of kotlinx.serialization.PolymorphicSerializer>) [primary] declared in kotlinx.serialization.PolymorphicSerializer' type=kotlinx.serialization.PolymorphicSerializer<net.folivo.trixnity.core.model.events.EventContent> origin=null
                  <class: T>: net.folivo.trixnity.core.model.events.EventContent
                  baseClass: CLASS_REFERENCE 'CLASS INTERFACE name:EventContent modality:ABSTRACT visibility:public superTypes:[kotlin.Any]' type=kotlin.reflect.KClass<*>
              GET_VAR 'val tmp0: kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> [val] declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=kotlin.Array<kotlinx.serialization.KSerializer<out @[Contextual] net.folivo.trixnity.core.model.events.Event<*>?>> origin=null
          value: BLOCK type=@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? origin=null
            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:redactedBecause type:@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? visibility:private [final]' type=@[Contextual] net.folivo.trixnity.core.model.events.Event<*>? origin=null
              receiver: GET_VAR 'self: net.folivo.trixnity.core.model.events.UnsignedData declared in net.folivo.trixnity.core.model.events.UnsignedData.write$Self' type=net.folivo.trixnity.core.model.events.UnsignedData origin=null

    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:50)
    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate$default(FunctionCodegen.kt:43)
    at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generateMethodNode(ClassCodegen.kt:341)
    at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generateMethod(ClassCodegen.kt:358)
    at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generate(ClassCodegen.kt:130)
    at org.jetbrains.kotlin.backend.jvm.JvmLowerKt$codegenPhase$1$1.lower(JvmLower.kt:304)
    at org.jetbrains.kotlin.backend.common.phaser.FileLoweringPhaseAdapter.invoke(PhaseBuilders.kt:120)
    at org.jetbrains.kotlin.backend.common.phaser.FileLoweringPhaseAdapter.invoke(PhaseBuilders.kt:116)
    at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
    at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invokeSequential(performByIrFile.kt:65)
    ... 46 more
Caused by: java.lang.IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER name:typeSerial0 index:0 type:kotlinx.serialization.KSerializer<T0 of net.folivo.trixnity.core.model.events.Event.Companion.serializer>
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:478)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:217)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultImpls.genValueAndPut(IrCallGenerator.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultCallGenerator.genValueAndPut(IrCallGenerator.kt:50)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:471)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:217)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.generateConstructorArguments(ExpressionCodegen.kt:605)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitConstructorCall(ExpressionCodegen.kt:593)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitConstructorCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrConstructorCallImpl.accept(IrConstructorCallImpl.kt:28)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:217)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultImpls.genValueAndPut(IrCallGenerator.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultCallGenerator.genValueAndPut(IrCallGenerator.kt:50)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:479)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitWhen(ExpressionCodegen.kt:980)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitWhen(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.IrWhen.accept(IrWhen.kt:29)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitStatementContainer(ExpressionCodegen.kt:435)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:439)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.IrBlockBody.accept(IrBody.kt:54)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.generate(ExpressionCodegen.kt:235)
    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.doGenerate(FunctionCodegen.kt:122)
    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:48)
    ... 55 more

[Whathecode]

Can confirm @benkuly 's report. Have a similar exception on JVM while trying to upgrade to Kotlin 1.5.30.

...
Caused by: java.lang.IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER IR_EXTERNAL_DECLARATION_STUB name:typeSerial0 index:0 type:kotlinx.serialization.KSerializer<T0 of dk.cachet.carp.common.application.devices.MasterDeviceDescriptor.Companion.serializer>
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:478)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:217)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.generateConstructorArguments(ExpressionCodegen.kt:605)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitConstructorCall(ExpressionCodegen.kt:593)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitConstructorCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrConstructorCallImpl.accept(IrConstructorCallImpl.kt:28)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:217)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultImpls.genValueAndPut(IrCallGenerator.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultCallGenerator.genValueAndPut(IrCallGenerator.kt:50)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:479)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitStatementContainer(ExpressionCodegen.kt:435)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:439)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:134)
    at org.jetbrains.kotlin.ir.expressions.IrBlockBody.accept(IrBody.kt:54)
    at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.generate(ExpressionCodegen.kt:235)
    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.doGenerate(FunctionCodegen.kt:122)
    at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:48)
    ... 55 more

But, I don't use @Contextual. So maybe I should post this as a new bug report?

[Dominaezzz]

I'm not using @Contextual either. I think this has to do with generics. @benkuly just happens to be using both.

[benkuly]

With Kotlin 1.5.30 this does also affect the jvm target with the following exception. I also updated the example branch linked above.

Actually it was another issue, that was fixed in 1.5.31. But the e: java.lang.IllegalStateException: Not found Idx for public issue is still present for JS IR and Native IR. As mentioned above: If I would know, where to start, I could try to fix the issue. Writing a multiplatform library, where JVM is the only target that works, is very frustrating :(

[benkuly]

This issue seems to be fixed with kotlin 1.6.0. Thank you!

[Whathecode]

@benkuly Thank you for reopening. Although the bug seems similar, I thought it was worth reporting separately. Feel free to close this again.