[Development] GDB python pretty printers for common Qt classes

[Milian Wolff]

Hey all!

KDevelop is since some time relying on python pretty printers to stringify 
common Qt container classes when using GDB [1]. They work nicely in any GDB 
console, as long as you compile your app with -O0 -g -fno-inline. If you don't 
do that, the existing pretty printers will start to fail. To improve that 
situation, I would like to start rewriting the pretty printers and rely more 
on the actual internal Qt implementation.

Since this might change between versions, I would very much welcome if we 
could get these pretty printers into Qt itself. Note that while the existing 
code we wrote is mostly for Qt4, afaik it also works relatively OK for Qt5 
already. I think getting it upstream for Qt5 only would be good.

Feedback? And, if this is accepted - where should such files reside? Should 
they accompany each Qt module? Or should there be a central pretty printer 
file? What classes should be pretty-printable?

[1]: 
https://projects.kde.org/projects/extragear/kdevelop/kdevelop/repository/revisions/master/entry/debuggers/gdb/printers/qt4.py

-- 
Milian Wolff
mail at milianw.de
http://milianw.de
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