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From Paul King <pa...@asert.com.au>
Subject Re: looks like a missing exception harness in a typechecker somewhere?
Date Tue, 12 Jul 2016 01:29:54 GMT
I assume (given you say heavily transformed) that you don't have a
simple way to reproduce the error?

On Tue, Jul 12, 2016 at 7:26 AM, OC <ocs@ocs.cz> wrote:
> Hi there,
>
> with a pretty complex and heavily AST-transformed code, which, nevertheless, *without
typechecking builds and runs all right*, with a typechecker compilation crashes in the following
way (Groovy 2.4.7).
>
> The problem might well be caused by a mistake in my own typechecking extension script
(which, essentially, turns all typechecker errors to warnings); still, though, I think the
compiler should not crash this way (instead, it might report a reasonable error):
>
> ===
>>>> a serious error occurred: BUG! exception in phase 'instruction selection'
in source unit '/Users/ocs/Projects/WO_XC_ProBOIS/SberDat2/../OCShared/src/scomponents/DFEOList.groovy'
unexpected NullpointerException
>>>> stacktrace:
> BUG! exception in phase 'instruction selection' in source unit '/Users/ocs/Projects/WO_XC_ProBOIS/SberDat2/../OCShared/src/scomponents/DFEOList.groovy'
unexpected NullpointerException
>         at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1058)
>         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.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:525)
>         at org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:61)
>         at org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:217)
>         at org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompile(FileSystemCompiler.java:150)
>         at org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompileWithErrorHandling(FileSystemCompiler.java:180)
>         at org.codehaus.groovy.tools.FileSystemCompiler.main(FileSystemCompiler.java:164)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:601)
>         at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:109)
>         at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:131)
> Caused by: java.lang.NullPointerException
>         at org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:237)
>         at org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:211)
>         at org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:250)
>         at org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:211)
>         at org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:163)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.popAssignmentTracking(StaticTypeCheckingVisitor.java:3256)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitIfElse(StaticTypeCheckingVisitor.java:3215)
>         at org.codehaus.groovy.ast.stmt.IfStatement.visit(IfStatement.java:43)
>         at org.codehaus.groovy.ast.CodeVisitorSupport.visitBlockStatement(CodeVisitorSupport.java:37)
>         at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitBlockStatement(ClassCodeVisitorSupport.java:166)
>         at org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:71)
>         at org.codehaus.groovy.ast.CodeVisitorSupport.visitTryCatchFinally(CodeVisitorSupport.java:84)
>         at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitTryCatchFinally(ClassCodeVisitorSupport.java:231)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitTryCatchFinally(StaticTypeCheckingVisitor.java:3361)
>         at org.codehaus.groovy.ast.stmt.TryCatchStatement.visit(TryCatchStatement.java:44)
>         at org.codehaus.groovy.ast.CodeVisitorSupport.visitBlockStatement(CodeVisitorSupport.java:37)
>         at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitBlockStatement(ClassCodeVisitorSupport.java:166)
>         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.transform.stc.StaticTypeCheckingVisitor.visitConstructorOrMethod(StaticTypeCheckingVisitor.java:1784)
>         at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:126)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.startMethodInference(StaticTypeCheckingVisitor.java:2119)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethod(StaticTypeCheckingVisitor.java:2078)
>         at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1078)
>         at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:53)
>         at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitClass(StaticTypeCheckingVisitor.java:249)
>         at org.codehaus.groovy.transform.StaticTypesTransformation.visit(StaticTypesTransformation.java:66)
>         at org.codehaus.groovy.transform.ASTTransformationVisitor.visitClass(ASTTransformationVisitor.java:134)
>         at org.codehaus.groovy.transform.ASTTransformationVisitor$2.call(ASTTransformationVisitor.java:178)
>         at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1053)
> ===
>
> All the best,
> OC
>

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