https://bugs.kde.org/show_bug.cgi?id=420317
Bug ID: 420317
Summary: Python wrapper creates a non-None Node for null parent
(which causes an assert)
Product: krita
Version: git master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Scripting
Assignee: krita-bugs-n...@kde.org
Reporter: tamtamy.tym...@gmail.com
Target Milestone: ---
SUMMARY
In cpp part of Krita, the parentNode() of the root layer will be null. In
Python wrapper, it will return a non-None Node with "" as name() etc.
STEPS TO REPRODUCE
1. Open an image with one layer.
2. Access the parentNode() of that layer.
3. Access the parentNode() of the parentNode()
OBSERVED RESULT
There will be an assert thrown:
ASSERT: "d" in file /home/tymon/kritadev/krita/libs/global/kis_shared_ptr.h,
line 180
EXPECTED RESULT
No assert. The parentNode() at some point will return None, signalising the end
of the hierarchy (instead of non-Nones all the way up :) )
SOFTWARE/OS VERSIONS
Krita
Version: 5.0.0-prealpha (git 54b7496) (last upstream: 3145ca0914)
Languages: pl, pl_PL, pl
Hidpi: true
Qt
Version (compiled): 5.11.1
Version (loaded): 5.11.1
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 5.3.7-050307-generic
Pretty Productname: Linux Mint 19.3
Product Type: linuxmint
Product Version: 19.3
Desktop: X-Cinnamon
ADDITIONAL INFORMATION
Relevant part of the backtrace:
#0 0x00007ffff3ef6ed7 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:50
#1 0x00007ffff3ed8535 in __GI_abort () at abort.c:79
#2 0x00007ffff46c08d7 in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3 0x00007ffff46bfd59 in qt_assert_x(char const*, char const*, char const*,
int) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4 0x00007fffcd3cd7f5 in KisSharedPtr<KisNode>::operator->() (this=<optimized
out>) at /home/tymon/kritadev/krita/libs/global/kis_shared_ptr.h:180
#5 0x00007fffcd3f2d29 in Node::createNode(KisSharedPtr<KisImage>,
KisSharedPtr<KisNode>, QObject*) (image=..., node=..., parent=0x0) at
/home/tymon/kritadev/krita/libs/libkis/Node.cpp:87
#6 0x00007fffcd3f3556 in Node::parentNode() const (this=0x555563c2d0a0) at
/home/tymon/kritadev/krita/libs/global/kis_shared_ptr.h:179
#7 0x00007fffcceaa003 in meth_Node_parentNode(PyObject*, PyObject*)
(sipSelf=<optimized out>, sipArgs=<optimized out>) at
/home/tymon/kritadev/build/plugins/extensions/pykrita/sip/./krita/sipkritapart0.cpp:19504
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