StacktraceTop: QtPrivate::RefCount::ref (this=0x4) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:54 QV4::Heap::String::toQString (this=<optimized out>) at jsruntime/qv4string_p.h:84 QV4::String::toQString (this=<optimized out>) at jsruntime/qv4string_p.h:145 QV4::Heap::StringObject::StringObject (this=<optimized out>, engine=0xc88bb0, val=...) at jsruntime/qv4stringobject.cpp:91 QV4::MemoryManager::alloc<QV4::StringObject, QV4::ExecutionEngine*, QV4::Value> (arg2=..., arg1=0xc88bb0, this=<optimized out>) at jsruntime/qv4mm_p.h:126
StacktraceTop: :RefCount: :ref (this=0x4) at /usr/include/ x86_64- linux-gnu/ qt5/QtCore/ qrefcount. h:54 :String: :toQString (this=<optimized out>) at jsruntime/ qv4string_ p.h:84 :toQString (this=<optimized out>) at jsruntime/ qv4string_ p.h:145 :StringObject: :StringObject (this=<optimized out>, engine=0xc88bb0, val=...) at jsruntime/ qv4stringobject .cpp:91 ager::alloc< QV4::StringObje ct, QV4::ExecutionE ngine*, QV4::Value> (arg2=..., arg1=0xc88bb0, this=<optimized out>) at jsruntime/ qv4mm_p. h:126
QtPrivate:
QV4::Heap:
QV4::String:
QV4::Heap:
QV4::MemoryMan