Does anybody met next exception [thread] ? Why can...

# compose

[iamthevoid]

Does anybody met next exception [thread] ? Why can it be? I have code with finite loops just for represent button styles from design system [thread]

[iamthevoid]

java.lang.IllegalStateException: Attempted to realize group twice
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope$markCoalescableGroup$1$1.invoke(ComposableFunctionBodyTransformer.kt:3524)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope$markCoalescableGroup$1$1.invoke(ComposableFunctionBodyTransformer.kt:3476)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope.realizeCoalescableGroup(ComposableFunctionBodyTransformer.kt:3570)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope.realizeCoalescableGroup(ComposableFunctionBodyTransformer.kt:3572)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope.realizeCoalescableGroup(ComposableFunctionBodyTransformer.kt:3572)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer$Scope$BlockScope.realizeGroup(ComposableFunctionBodyTransformer.kt:3483)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer.visitRestartableComposableFunction(ComposableFunctionBodyTransformer.kt:1091)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer.visitFunctionInScope(ComposableFunctionBodyTransformer.kt:699)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer.visitFunction(ComposableFunctionBodyTransformer.kt:668)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:72)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:73)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitSimpleFunction(IrElementTransformerVoid.kt:24)
	at org.jetbrains.kotlin.ir.declarations.IrSimpleFunction.accept(IrSimpleFunction.kt:28)
	at org.jetbrains.kotlin.ir.IrElement$DefaultImpls.transform(IrElement.kt:32)
	at org.jetbrains.kotlin.ir.IrElementBase.transform(IrElementBase.kt:19)
	at org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl.transformChildren(IrFileImpl.kt:71)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitPackageFragment(IrElementTransformerVoid.kt:41)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:47)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer.visitFile(ComposableFunctionBodyTransformer.kt:1693)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:48)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid.visitFile(IrElementTransformerVoid.kt:24)
	at org.jetbrains.kotlin.ir.declarations.impl.IrFileImpl.accept(IrFileImpl.kt:63)
	at org.jetbrains.kotlin.ir.declarations.IrFile.transform(IrFile.kt:48)
	at org.jetbrains.kotlin.ir.declarations.impl.IrModuleFragmentImpl.transformChildren(IrModuleFragmentImpl.kt:45)
	at org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoidKt.transformChildrenVoid(IrElementTransformerVoid.kt:330)
	at androidx.compose.compiler.plugins.kotlin.lower.ComposableFunctionBodyTransformer.lower(ComposableFunctionBodyTransformer.kt:457)
	at androidx.compose.compiler.plugins.kotlin.ComposeIrGenerationExtension.generate(ComposeIrGenerationExtension.kt:128)
	at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory$generateModule$1.invoke(JvmIrCodegenFactory.kt:93)
	at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory$generateModule$1.invoke(JvmIrCodegenFactory.kt:89)
	at org.jetbrains.kotlin.psi2ir.Psi2IrTranslator.generateModuleFragment(Psi2IrTranslator.kt:91)
	at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.generateModule(JvmIrCodegenFactory.kt:106)
	at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.compileCorrectFiles(KotlinCodegenFacade.java:35)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.generate(KotlinToJVMBytecodeCompiler.kt:595)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:211)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli$default(KotlinToJVMBytecodeCompiler.kt:154)
	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:88)
	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:386)
	at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:110)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally(IncrementalCompilerRunner.kt:286)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl(IncrementalCompilerRunner.kt:111)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:74)
	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:1659)
	at jdk.internal.reflect.GeneratedMethodAccessor104.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)

[iamthevoid]

@Composable
fun ButtonsScreen() {
    Column(
        modifier = Modifier
            .padding(16.dp)
            .verticalScroll(rememberScrollState())
    ) {
        ButtonStyle.Size.values().forEach { size ->

            Text(text = "${size.name.toLowerCase().capitalize()}:", style = RtTypography.bodyMedium)
            Spacer(modifier = Modifier.height(4.dp))

            ButtonStyle.Type.values().forEach { type ->

                Text(text = "${type.name.toLowerCase().capitalize()}:")
                Spacer(modifier = Modifier.height(2.dp))

                repeat(6) { iconStyleIndex ->
                    CreateButton(
                        type = type,
                        size = size,
                        iconStyle = when (iconStyleIndex % 3) {
                            1 -> IconStyle.Start(res = ButtonIcon.Vector(Icons.Default.Add))
                            2 -> IconStyle.End(res = ButtonIcon.Vector(Icons.Default.KeyboardArrowRight))
                            else -> null
                        },
                        enabled = iconStyleIndex < 3
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                }

                Row(modifier = Modifier.fillMaxSize(), horizontalArrangement = Arrangement.SpaceBetween) {
                    repeat(2) { index ->
                        IconButtonStyle.values().forEach { iconButtonStyle ->
                            IconButton(
                                icon = ButtonIcon.Vector(Icons.Default.KeyboardArrowRight),
                                onClick = {},
                                enabled = index % 2 != 0,
                                buttonStyle = ButtonStyle(
                                    type = type,
                                    size = size
                                ),
                                iconButtonStyle = iconButtonStyle
                            )
                        }
                    }
                }
            }
        }
    }
}

[iamthevoid]

the error happens when i add

Row(modifier = Modifier.fillMaxSize(), horizontalArrangement = Arrangement.SpaceBetween) {
                    repeat(2) { index ->
                        IconButtonStyle.values().forEach { iconButtonStyle ->
                            IconButton(
                                icon = ButtonIcon.Vector(Icons.Default.KeyboardArrowRight),
                                onClick = {},
                                enabled = index % 2 != 0,
                                buttonStyle = ButtonStyle(
                                    type = type,
                                    size = size
                                ),
                                iconButtonStyle = iconButtonStyle
                            )
                        }
                    }
                }

[iamthevoid]

I understand that it is ugly code, but it is sample app, so i don’t care )

[iamthevoid]

But all loops straightforward, there are no any mess

[Adam Powell]

looks like a compiler bug, can you please file an issue on the tracker in the channel topic?

[iamthevoid]

@Adam Powell https://issuetracker.google.com/189153559