You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@groovy.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/08/01 23:45:04 UTC
[jira] [Commented] (GROOVY-7538) Compiler crash in the static type
checker with self-referencing generic type
[ https://issues.apache.org/jira/browse/GROOVY-7538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650545#comment-14650545 ]
ASF GitHub Bot commented on GROOVY-7538:
----------------------------------------
GitHub user fpavageau opened a pull request:
https://github.com/apache/incubator-groovy/pull/79
GROOVY-7538 Add a failing test
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/fpavageau/incubator-groovy GROOVY-7538
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-groovy/pull/79.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #79
----
commit 73dec2343ee865bec2176aff8e2bda52aa7b3296
Author: Frank Pavageau <fp...@ekino.com>
Date: 2015-08-01T21:40:57Z
GROOVY-7538 Add a failing test
----
> Compiler crash in the static type checker with self-referencing generic type
> ----------------------------------------------------------------------------
>
> Key: GROOVY-7538
> URL: https://issues.apache.org/jira/browse/GROOVY-7538
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Affects Versions: 2.4.4
> Reporter: Frank Pavageau
> Assignee: Cédric Champeau
> Labels: test
>
> I'm writing unit tests in Groovy combined with AspectJ, and I got a compiler crash with the following code:
> {code}
> Assertions.assertThat("true").isNotEmpty().isNotEqualTo("false")
> {code}
> The matching stacktrace is
> {noformat}
> java.lang.ArrayIndexOutOfBoundsException: 1
> at org.codehaus.groovy.ast.tools.GenericsUtils.extractPlaceholders(GenericsUtils.java:167)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.extractPlaceHolders(StaticTypeCheckingVisitor.java:4455)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.resolvePlaceHoldersFromDeclaration(StaticTypeCheckingVisitor.java:4416)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.inferReturnTypeGenerics(StaticTypeCheckingVisitor.java:4206)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethodCallExpression(StaticTypeCheckingVisitor.java:2924)
> at org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitMethodCallExpression(StaticCompilationVisitor.java:297)
> at org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:66)
> at org.codehaus.groovy.ast.CodeVisitorSupport.visitExpressionStatement(CodeVisitorSupport.java:71)
> at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitExpressionStatement(ClassCodeVisitorSupport.java:196)
> at org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:42)
> 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:1773)
> at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:126)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.startMethodInference(StaticTypeCheckingVisitor.java:2106)
> at org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethod(StaticTypeCheckingVisitor.java:2065)
> at org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitMethod(StaticCompilationVisitor.java:163)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1086)
> 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.sc.StaticCompilationVisitor.visitClass(StaticCompilationVisitor.java:122)
> at org.codehaus.groovy.transform.sc.StaticCompileTransformation.visit(StaticCompileTransformation.java:63)
> 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:606)
> at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSite.invoke(PojoMetaMethodSite.java:192)
> at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
> at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
> at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133)
> at org.codehaus.groovy.control.customizers.ASTTransformationCustomizer.call(ASTTransformationCustomizer.groovy:294)
> at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1055)
> 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)
> ...
> {noformat}
> Also interesting is that if I swap the 2 assertions, the compiler doesn't crash anymore, but I still get a compilation error from the static type checker:
> {code}
> Assertions.assertThat("true").isNotEqualTo("false").isNotEmpty()
> {code}
> The error is then:
> {noformat}
> [Static type checking] - Cannot find matching method org.assertj.core.api.AbstractAssert#isNotEmpty(). Please check if the declared type is right and if the method exists.
> {noformat}
> Of course, both lines compile in Java.
> I've created a test to reproduce the bugs, I'll create a pull request on github right afterwards.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)