[umbrello] [Bug 451427] New: Crash when importing c++ variadic templated file

[Azkalaak]

https://bugs.kde.org/show_bug.cgi?id=451427

            Bug ID: 451427
           Summary: Crash when importing c++ variadic templated file
           Product: umbrello
           Version: unspecified
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: importer
          Assignee: umbrello-devel at kde.org
          Reporter: azkalaak at tutanota.com
  Target Milestone: ---

Created attachment 147459
  --> https://bugs.kde.org/attachment.cgi?id=147459&action=edit
output of terminal while the crash happened

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug
symbols.
See
https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

Umbrello crashes whenever I try to import a file containing c++ variadic
template 
***


STEPS TO REPRODUCE
1.  create a c++20 file containing variadic template (or clone the project I
detected it on: git at gitlab/azkalaak/my_rpg_reloaded.git
2. open umbrello, and open the code import wizard
3. try to import the file containing the c++ variadic templated class (on my
project, just import the ZenithException class is in the folder libs/zenith)
4. see the crash happen

OBSERVED RESULT
Umbrello crashes with the messages linked with this report


EXPECTED RESULT
Umbrello succesfully imports the classes


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 35 / Kde plasma 5.24.2
(available in About System)
KDE Plasma Version:  5.24.2
KDE Frameworks Version: 5.91.0 
Qt Version: 5.15.2

ADDITIONAL INFORMATION
I am using some c++20 features (templates, include)
I am using KDE wayland as it is the default KDE on fedora. I did not test this
on Xorg KDE (but I can if requested)

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