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Bug 356493

Summary:	Member declaration not found for functions qualified with namespace alias
Product:	[Tools] CDT	Reporter:	Andrew Gvozdev <angvoz.dev>
Component:	cdt-parser	Assignee:	Markus Schorn <mschorn.eclipse>
Status:	RESOLVED FIXED	QA Contact:	Markus Schorn <mschorn.eclipse>
Severity:	normal
Priority:	P3	CC:	cdtdoug, malaperle
Version:	8.0
Target Milestone:	8.0.2
Hardware:	All
OS:	All
Whiteboard:

Description Andrew Gvozdev

2011-09-01 12:09:32 EDT

Consider following example:

x.hpp:
namespace ns {
   void fun();
}

x.cpp:
#include "x.hpp"
namespace alias = ns;
void alias::fun() {}

"alias::fun" is generating codan warning "Member declaration not found". F3 navigates to the definition in the header but not back. If I move namespace definition inside x.cpp everything starts working.

Comment 1 Markus Schorn

2011-09-07 06:08:53 EDT

Added testcase and fix.

Comment 2 CDT Genie

2011-09-07 06:23:02 EDT

*** cdt git genie on behalf of Markus Schorn ***

    Bug 356493: Namespace alias in qualified name.

[*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=0cbcce913fe550e2de7ab8ba5635da73d95f2f8c

Comment 3 Andrew Gvozdev

2011-09-07 12:09:45 EDT

Thanks for looking at it that soon but after this change an exception is thrown at following snippet after any change in the file:

template <typename T>
void f()
{
    typename T::type t;
}

java.lang.ClassCastException: org.eclipse.cdt.internal.core.dom.parser.cpp.CPPUnknownScope cannot be cast to org.eclipse.cdt.core.dom.ast.cpp.ICPPClassScope
	at org.eclipse.cdt.internal.core.dom.parser.cpp.ClassTypeHelper.getOwnMethods(ClassTypeHelper.java:320)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.ClassTypeHelper.collectPureVirtualMethods(ClassTypeHelper.java:874)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.ClassTypeHelper.getPureVirtualMethods(ClassTypeHelper.java:823)
	at org.eclipse.cdt.codan.internal.checkers.AbstractClassInstantiationChecker$OnEachClass.reportProblemsIfAbstract(AbstractClassInstantiationChecker.java:195)
	at org.eclipse.cdt.codan.internal.checkers.AbstractClassInstantiationChecker$OnEachClass.checkClass(AbstractClassInstantiationChecker.java:120)
	at org.eclipse.cdt.codan.internal.checkers.AbstractClassInstantiationChecker$OnEachClass.visit(AbstractClassInstantiationChecker.java:90)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTSimpleDeclaration.accept(CPPASTSimpleDeclaration.java:89)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTDeclarationStatement.accept(CPPASTDeclarationStatement.java:72)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTCompoundStatement.accept(CPPASTCompoundStatement.java:79)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTFunctionDefinition.accept(CPPASTFunctionDefinition.java:187)
	at org.eclipse.cdt.internal.core.dom.parser.cpp.CPPASTTemplateDeclaration.accept(CPPASTTemplateDeclaration.java:119)
	at org.eclipse.cdt.internal.core.dom.parser.ASTTranslationUnit.accept(ASTTranslationUnit.java:279)
	at org.eclipse.cdt.codan.internal.checkers.AbstractClassInstantiationChecker.processAst(AbstractClassInstantiationChecker.java:66)
	at org.eclipse.cdt.codan.core.cxx.model.AbstractIndexAstChecker.processModel(AbstractIndexAstChecker.java:103)
	at org.eclipse.cdt.codan.internal.core.CodanBuilder.processResource(CodanBuilder.java:149)
	at org.eclipse.cdt.codan.internal.core.CodanBuilder.runInEditor(CodanBuilder.java:218)
	at org.eclipse.cdt.codan.core.cxx.internal.model.CxxCodanReconciler.reconciledAst(CxxCodanReconciler.java:38)
	at org.eclipse.cdt.codan.internal.ui.cxx.CodanCReconciler.reconciled(CodanCReconciler.java:81)
	at org.eclipse.cdt.internal.ui.editor.CEditor.reconciled(CEditor.java:3196)
	at org.eclipse.cdt.internal.ui.text.CReconcilingStrategy.reconcile(CReconcilingStrategy.java:108)
	at org.eclipse.cdt.internal.ui.text.CReconcilingStrategy.reconcile(CReconcilingStrategy.java:73)
	at org.eclipse.cdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:84)
	at org.eclipse.cdt.internal.ui.text.CCompositeReconcilingStrategy.reconcile(CCompositeReconcilingStrategy.java:90)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:77)
	at org.eclipse.cdt.internal.ui.text.CReconciler.process(CReconciler.java:408)
	at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:206)

Comment 4 Marc-André Laperle

2011-09-07 12:30:17 EDT

(In reply to comment #3)
> Thanks for looking at it that soon but after this change an exception is thrown
> at following snippet after any change in the file:

See bug 356239.

Comment 5 Markus Schorn

2011-09-08 02:53:01 EDT

(In reply to comment #3)
As Marc-Andre pointed out, this is a different issue.

Comment 6 CDT Genie

2011-09-19 08:23:12 EDT

*** cdt git genie on behalf of Markus Schorn ***

    Bug 356493: Namespace alias in qualified name.

[*] http://git.eclipse.org/c/cdt/org.eclipse.cdt.git/commit/?id=aa6c2c50d0a58928d81a576e29a3fae50d2c3e5f