https://bugs.kde.org/show_bug.cgi?id=478689
Bug ID: 478689
Summary: C++ Semantic analysis gets confused by class
inheritance
Classification: Applications
Product: kdevelop
Version: 5.12.230801
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Language Support: CPP (Clang-based)
Assignee: kdevelop-bugs-n...@kde.org
Reporter: mattia.basag...@gmail.com
Target Milestone: ---
Created attachment 164276
--> https://bugs.kde.org/attachment.cgi?id=164276&action=edit
Screenshot showing kdevelop properly detects base classes but still marks them
as an error
SUMMARY
It seems KDevelop starts giving type errors for conversions between a pointer
to a derived class to its base class / ancestors.
It correctly finds the methods and highlights them / give the correct info on
hover but marks it as an error.
This happens both with function calls and access to members declared in base
classes using `->`.
It seems to be caused by multiple inheritance because commenting out one of the
base classes seems to fix the issue.
The same codebase worked fine a couple kdevelop versions ago.
STEPS TO REPRODUCE
1. For me it happens for this class:
https://invent.kde.org/graphics/glaxnimate/-/blob/master/src/gui/widgets/dialogs/glaxnimate_window.hpp#L40
2. Open the project mentioned above with kdevelop
3. Open
https://invent.kde.org/graphics/glaxnimate/-/blob/master/src/gui/widgets/dialogs/gw_impl_ui.cpp
OBSERVED RESULT
Bunch of correct code marked as an error
EXPECTED RESULT
It shouldn't mark it
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 23.10
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Kernel Version: 6.5.0-14-generic (64-bit)
Graphics Platform: X11
Processors: 8 × AMD FX(tm)-8320 Eight-Core Processor
Memory: 31.4 GiB of RAM
Graphics Processor: AMD Radeon RX 470 Graphics
Manufacturer: NOVATECH LTD
Product Name: PC-X006665
System Version: V1.0
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