[
https://issues.apache.org/jira/browse/GROOVY-10920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17682159#comment-17682159
]
Jason Garrett commented on GROOVY-10920:
----------------------------------------
This affects 3.0 back to at least 3.0.8 and 2.5 back to at least 2.5.14.
> Compiler exception with void expression as while condition with CompileStatic
> -----------------------------------------------------------------------------
>
> Key: GROOVY-10920
> URL: https://issues.apache.org/jira/browse/GROOVY-10920
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
> Affects Versions: 3.0.14, 2.5.21
> Reporter: Jason Garrett
> Priority: Minor
>
> Under static compilation, using a void expression as the condition (or part
> of the condition) of a while statement causes the compiler to throw
> exceptions.
> This code:
> {code:java}
> package example
> import groovy.transform.CompileStatic
> @CompileStatic
> class WhileVoid {
> void isSo() {
> null
> }
> void myBuggyConstruct() {
> while(isSo()) {
> null
> }
> }
> }
> {code}
> results in this exception from the compiler:
> {code:java}
> startup failed:
> General error during instruction selection: ASM reporting processing error
> for example.WhileVoid#myBuggyConstruct with signature void myBuggyConstruct()
> in WhileVoid.groovy:11.
> /Users/jasongarrett/scratch/scratch/src/main/groovy/example/WhileVoid.groovy
> groovy.lang.GroovyRuntimeException: ASM reporting processing error for
> example.WhileVoid#myBuggyConstruct with signature void myBuggyConstruct() in
> WhileVoid.groovy:11.
> /Users/jasongarrett/scratch/scratch/src/main/groovy/example/WhileVoid.groovy
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:432)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:106)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitMethod(AsmClassGenerator.java:557)
> at org.codehaus.groovy.ast.ClassNode.visitMethods(ClassNode.java:1094)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1087)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:52)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:273)
> at
> org.codehaus.groovy.control.CompilationUnit$3.call(CompilationUnit.java:798)
> at
> org.codehaus.groovy.control.CompilationUnit$IPrimaryClassNodeOperation.doPhaseOperation(CompilationUnit.java:943)
> at
> org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:672)
> at
> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:636)
> at
> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:611)
> at
> org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:277)
> at
> org.gradle.api.internal.tasks.compile.ApiGroovyCompiler.execute(ApiGroovyCompiler.java:67)
> at
> org.gradle.api.internal.tasks.compile.GroovyCompilerFactory$DaemonSideCompiler.execute(GroovyCompilerFactory.java:98)
> at
> org.gradle.api.internal.tasks.compile.GroovyCompilerFactory$DaemonSideCompiler.execute(GroovyCompilerFactory.java:77)
> at
> org.gradle.api.internal.tasks.compile.daemon.AbstractDaemonCompiler$CompilerWorkAction.execute(AbstractDaemonCompiler.java:135)
> at
> org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:63)
> at
> org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:49)
> at
> org.gradle.workers.internal.AbstractClassLoaderWorker$1.create(AbstractClassLoaderWorker.java:43)
> at
> org.gradle.internal.classloader.ClassLoaderUtils.executeInClassloader(ClassLoaderUtils.java:97)
> at
> org.gradle.workers.internal.AbstractClassLoaderWorker.executeInClassLoader(AbstractClassLoaderWorker.java:43)
> at
> org.gradle.workers.internal.IsolatedClassloaderWorker.run(IsolatedClassloaderWorker.java:49)
> at
> org.gradle.workers.internal.IsolatedClassloaderWorker.run(IsolatedClassloaderWorker.java:30)
> at
> org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:85)
> at
> org.gradle.workers.internal.WorkerDaemonServer.run(WorkerDaemonServer.java:55)
> at
> org.gradle.process.internal.worker.request.WorkerAction$1.call(WorkerAction.java:138)
> at
> org.gradle.process.internal.worker.child.WorkerLogEventListener.withWorkerLoggingProtocol(WorkerLogEventListener.java:41)
> at
> org.gradle.process.internal.worker.request.WorkerAction.run(WorkerAction.java:135)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
> at
> org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
> at
> org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
> at
> org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
> at
> org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:414)
> at
> org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
> at
> org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at
> org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds
> for length 0
> at groovyjarjarasm.asm.Frame.merge(Frame.java:1268)
> at groovyjarjarasm.asm.Frame.merge(Frame.java:1233)
> at
> groovyjarjarasm.asm.MethodWriter.computeAllFrames(MethodWriter.java:1611)
> at groovyjarjarasm.asm.MethodWriter.visitMaxs(MethodWriter.java:1547)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:413)
> Caused by: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds
> for length 0
> {code}
> This example, with a slightly more complex condition for the while loop:
> {code:java}
> package example
> import groovy.transform.CompileStatic
> @CompileStatic
> class WhileNotVoid {
> List list = []
> void isSo() {
> null
> }
> void myBuggyConstruct() {
> while(!list.empty && !isSo()) {
> null
> }
> }
> }
> {code}
> results in a different compiler exception:
> {code:java}
> BUG! exception in phase 'class generation' in source unit
> '/Users/jasongarrett/scratch/scratch/src/main/groovy/example/WhileNotVoid.groovy'
> operand stack contains 2 elements, but we expected only 0
> {code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
