segfault when mixing inlcude and extend

[buschmann23]

I am trying to include template parts that itself use extend to generate their content. Most of the time this results in a segmentation fault, sometimes the rendering partly finishes without an error. I created an example application demonstrating my issue here: https://github.com/buschmann23/grantleetest

Maybe I am doing something completely wrong, or is this combination of include and extend not supported anyways? My Grantlee version is 5.1.0.

The gdb backtrace of of the sefault is as follows:

Program received signal SIGSEGV, Segmentation fault.
QList<QObject*>::QList (this=<optimized out>, l=..., this=<optimized out>, l=...) at /usr/include/qt5/QtCore/qlist.h:828
828         if (!d->ref.ref()) {
(gdb) bt
#0  QList<QObject*>::QList (this=<optimized out>, l=..., this=<optimized out>, l=...) at /usr/include/qt5/QtCore/qlist.h:828
#1  0x00007ffff7f6e0b2 in Grantlee::NodeList::NodeList (this=<optimized out>, list=..., this=<optimized out>, list=...) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/lib/node.cpp:121
#2  0x00007ffff4e084ab in BlockNode::render (this=0x4340a0, stream=<optimized out>, c=0x7fffffffd728) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/loadertags/block.cpp:123
#3  0x00007ffff7f6dcf8 in Grantlee::NodeList::render (this=this@entry=0x7fffffffd0b0, stream=stream@entry=0x7fffffffd6a0, c=c@entry=0x7fffffffd728) at /usr/include/qt5/QtCore/qlist.h:559
#4  0x00007ffff4e0a250 in ExtendsNode::render (this=<optimized out>, stream=<optimized out>, c=<optimized out>) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/loadertags/extends.cpp:159
#5  0x00007ffff7f6dcf8 in Grantlee::NodeList::render (this=0x4308d8, stream=0x7fffffffd6a0, c=0x7fffffffd728) at /usr/include/qt5/QtCore/qlist.h:559
#6  0x00007ffff7f63d2f in Grantlee::TemplateImpl::render (this=<optimized out>, stream=stream@entry=0x7fffffffd6a0, c=c@entry=0x7fffffffd728)
    at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/lib/template.cpp:92
#7  0x00007ffff4e05f60 in ConstantIncludeNode::render (this=0x43bf90, stream=0x7fffffffd6a0, c=0x7fffffffd728) at /usr/include/qt5/QtCore/qsharedpointer_impl.h:312
#8  0x00007ffff7fbfdc0 in ForNode::renderLoop (c=<optimized out>, stream=<optimized out>, this=<optimized out>) at /usr/include/qt5/QtCore/qlist.h:563
#9  ForNode::render (this=<optimized out>, stream=<optimized out>, c=0x7fffffffd728) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/defaulttags/for.cpp:214
#10 0x00007ffff7f6dcf8 in Grantlee::NodeList::render (this=0x4305f8, stream=0x7fffffffd6a0, c=0x7fffffffd728) at /usr/include/qt5/QtCore/qlist.h:559
#11 0x00007ffff7f63d2f in Grantlee::TemplateImpl::render (this=<optimized out>, stream=0x7fffffffd6a0, c=0x7fffffffd728) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/lib/template.cpp:92
#12 0x00007ffff7f677e1 in Grantlee::TemplateImpl::render (this=0x4303e0, c=0x7fffffffd728) at /usr/src/debug/grantlee5-5.1.0-0.x86_64/templates/lib/template.cpp:79
#13 0x000000000040adaf in main (argc=1, argv=0x7fffffffda28) at /home/buschmann/Dokumente/Entwicklung/Projekte/grantleetest/src/main.cpp:39

[steveire]

Thanks for reporting this. It should be fixed as of commit 5a8bfdb