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From Keegan Witt <keeganw...@gmail.com>
Subject Re: type checking bug
Date Wed, 02 Sep 2015 19:59:50 GMT
What version of Groovy are you using?  Maybe I'm doing something different,
but on 2.4.4, I'm not seeing the error you're seeing.

-Keegan

On Wed, Sep 2, 2015 at 8:44 AM, Jamie Echlin <jamie.echlin@gmail.com> wrote:

> Found a bug with type checking... at least I think it's a bug. If no one
> disagrees I'll raise a ticket in jira.
>
> When I compile the following using:
>
>          ASTTransformationCustomizer astcz = new
> ASTTransformationCustomizer(
>              TypeChecked)
>
> I get an NPE, which suggests that the compilation unit hasn't been set for
> one of the classes. Input code is:
>
> import groovy.transform.TypeChecked
>
> @TypeChecked
> class TypeCheckingBug {
>
>     void methodA() {
>         // removing this or the othing makes this work
>         ['a', 'b'].eachWithIndex { String value, sequence -> }
>     }
>
>
>     void methodB() {
>
>         def instanceB = new ClassB()
>
>         // removing this or the above makes this work
>         instanceB.with {
>             instanceC
>         }
>     }
>
>
>     class ClassB {
>         ClassC instanceC
>     }
>
>     class ClassC { }
> }
>
> Removing either of the two lines with the comments makes it work.
>
> Any help appreciated.
> cheers, jamie
>
> Caused by: java.lang.NullPointerException
> at
> org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:177)
> at
> org.codehaus.groovy.control.ClassNodeResolver.findClassNode(ClassNodeResolver.java:167)
> at
> org.codehaus.groovy.control.ClassNodeResolver.resolveName(ClassNodeResolver.java:123)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolveToOuter(ResolveVisitor.java:675)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:307)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:307)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:275)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolveOrFail(ResolveVisitor.java:259)
> at
> org.codehaus.groovy.control.ResolveVisitor.resolveOrFail(ResolveVisitor.java:271)
> at
> org.codehaus.groovy.control.ResolveVisitor.visitConstructorOrMethod(ResolveVisitor.java:196)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:123)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1083)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)
> at
> org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1260)
> at
> org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:175)
> at
> org.codehaus.groovy.ast.tools.GenericsUtils.resolveClassNode(GenericsUtils.java:560)
> at
> org.codehaus.groovy.ast.tools.GenericsUtils.parseClassNodesFromString(GenericsUtils.java:527)
> at groovy.transform.stc.FromString.parseOption(FromString.java:74)
> at groovy.transform.stc.FromString.getClosureSignatures(FromString.java:55)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.getSignaturesFromHint(StaticTypeCheckingVisitor.java:2588)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.doInferClosureParameterTypes(StaticTypeCheckingVisitor.java:2609)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.inferClosureParameterTypes(StaticTypeCheckingVisitor.java:2508)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethodCallArguments(StaticTypeCheckingVisitor.java:2474)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethodCallExpression(StaticTypeCheckingVisitor.java:3109)
> at
> org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:64)
> at
> org.codehaus.groovy.ast.CodeVisitorSupport.visitExpressionStatement(CodeVisitorSupport.java:69)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitExpressionStatement(ClassCodeVisitorSupport.java:193)
> at
> org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:40)
> at
> org.codehaus.groovy.ast.CodeVisitorSupport.visitBlockStatement(CodeVisitorSupport.java:35)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitBlockStatement(ClassCodeVisitorSupport.java:163)
> at
> org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:69)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:101)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:112)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitConstructorOrMethod(StaticTypeCheckingVisitor.java:1969)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:123)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.startMethodInference(StaticTypeCheckingVisitor.java:2302)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethod(StaticTypeCheckingVisitor.java:2261)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1083)
> at
> org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitClass(StaticTypeCheckingVisitor.java:248)
> at
> org.codehaus.groovy.transform.StaticTypesTransformation.visit(StaticTypesTransformation.java:63)
>  <+2> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSite.invoke(PojoMetaMethodSite.java:189)
> at
> org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:53)
> at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:130)
> at
> org.codehaus.groovy.control.customizers.ASTTransformationCustomizer.call(ASTTransformationCustomizer.groovy:292)
> at
> org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1052)
> ... 268 more
>
>
>

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