Details
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Bug
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Resolution: Invalid
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P3: Somewhat important
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None
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6.8, 6.9
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None
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clang version 18.1.8
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Linux/X11,
macOS
Description
The issue is only reproducible with clang compilers on either macOS or linux platforms(I didn't test windows).
The minimal reproducer can be found here: https://codereview.qt-project.org/c/qt/qtbase/+/583638
The test creates a new library(either shared to static) that introduces Q_GADGET or Q_OBJECT with the property of a class-pointer type.
The whole module is wrapped with inline and non-inline namespaces:
inline namespace TestInlineNamespace { namespace TestNonInlineNamespace { class TypeA { }; class INLINE_NAMESPACE_EXPORT TypeB : public QObject { Q_OBJECT Q_PROPERTY(TestInlineNamespace::TestNonInlineNamespace::TypeA *aProperty READ aProperty WRITE setBProperty SCRIPTABLE false) TypeA *aProperty(); void setBProperty(TypeA *aProperty); private: TypeA *m_aProperty; }; class TypeC { Q_GADGET_EXPORT(INLINE_NAMESPACE_EXPORT) Q_PROPERTY(TestInlineNamespace::TestNonInlineNamespace::TypeA *aProperty READ aProperty WRITE setBProperty SCRIPTABLE false) INLINE_NAMESPACE_EXPORT TypeA *aProperty(); INLINE_NAMESPACE_EXPORT void setBProperty(TypeA *aProperty); private: TypeA *m_aProperty; }; } // namespace TestNonInlineNamespace }
Issue:
When accessing the property metatype from the test, the aProperty metatype differs from the metatype for the TestInlineNamespace::TestNonInlineNamespace::TypeA * type.
This only happens if another nested namespace is declared in the test, without the wrapping inline namespace:
namespace TestNonInlineNamespace::Inner {
}
Also issue disappears if the inline namespace related sources are compiled as part of the tests, but not a separate library.
It's most probably upstream clang issue.