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https://issues.apache.org/jira/browse/GROOVY-7947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paul King updated GROOVY-7947:
------------------------------
Affects Version/s: 4.0.3
> Error:Groovyc: BUG! exception in phase 'class generation' operand stack
> contains 3 elements, but we expected only 0 at
> org.codehaus.groovy.classgen.asm.OperandStack.castToBool
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: GROOVY-7947
> URL: https://issues.apache.org/jira/browse/GROOVY-7947
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 2.4.7, 4.0.3
> Environment: IntelliJ IDEA 2016.2.4 on Mac OS X
> Reporter: Will McQueen
> Priority: Major
>
> In a groovy script, experimenting with operator overloading like this:
> {code}
> def next() {println "called next()"; 42}
> assert (++this)
> {code}
> ...results in:
> {code}
> Error:Groovyc: BUG! exception in phase 'class generation' in source unit
> '/Users/(...path...)/Main.groovy' operand stack contains 3 elements, but we
> expected only 0
> at
> org.codehaus.groovy.classgen.asm.OperandStack.castToBool(OperandStack.java:113)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitBooleanExpression(AsmClassGenerator.java:761)
> at
> org.codehaus.groovy.ast.expr.BooleanExpression.visit(BooleanExpression.java:42)
> at
> org.codehaus.groovy.classgen.asm.AssertionWriter.writeAssertStatement(AssertionWriter.java:89)
> at
> org.codehaus.groovy.classgen.asm.StatementWriter.writeAssert(StatementWriter.java:554)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitAssertStatement(AsmClassGenerator.java:586)
> at
> org.codehaus.groovy.ast.stmt.AssertStatement.visit(AssertStatement.java:50)
> at
> org.codehaus.groovy.classgen.asm.StatementWriter.writeBlockStatement(StatementWriter.java:84)
> at
> org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeBlockStatement(OptimizingStatementWriter.java:158)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitBlockStatement(AsmClassGenerator.java:566)
> at
> org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:71)
> at
> org.codehaus.groovy.classgen.asm.StatementWriter.writeBlockStatement(StatementWriter.java:84)
> at
> org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeBlockStatement(OptimizingStatementWriter.java:158)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitBlockStatement(AsmClassGenerator.java:566)
> at
> org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:71)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:104)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:115)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitStdMethod(AsmClassGenerator.java:430)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:387)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:126)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitMethod(AsmClassGenerator.java:507)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1078)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:53)
> at
> org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:233)
> at
> org.codehaus.groovy.control.CompilationUnit$16.call(CompilationUnit.java:813)
> at
> org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1053)
> at
> org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591)
> at
> org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569)
> at
> org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546)
> at
> org.jetbrains.groovy.compiler.rt.GroovyCompilerWrapper.compile(GroovyCompilerWrapper.java:62)
> at
> org.jetbrains.groovy.compiler.rt.DependentGroovycRunner.runGroovyc(DependentGroovycRunner.java:115)
> 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
> org.jetbrains.groovy.compiler.rt.GroovycRunner.intMain2(GroovycRunner.java:135)
> 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
> org.jetbrains.jps.incremental.groovy.InProcessGroovyc.runGroovycInThisProcess(InProcessGroovyc.java:156)
> at
> org.jetbrains.jps.incremental.groovy.InProcessGroovyc.access$000(InProcessGroovyc.java:51)
> at
> org.jetbrains.jps.incremental.groovy.InProcessGroovyc$1.call(InProcessGroovyc.java:85)
> at
> org.jetbrains.jps.incremental.groovy.InProcessGroovyc$1.call(InProcessGroovyc.java:82)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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