De-inline dtors of public polymorphic classes

By making the destructor (usually the first non-inline, non-pure,
virtual function, and therefore the trigger for most compilers to
emit the vtable and type_info structures for the class in that TU)
out-of-line, vtables and, more importantly, type_info structures for
the class are pinned to a single TU. This prevents false negative
dynamic_cast and catch evaluation.

It also allows to add code to them later, if necessary.

Change-Id: I0da301cd788162abba6cdbbb21910090a22adb9a
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/render/renderstates/qcullface.cpp b/src/render/renderstates/qcullface.cpp
index cebb55761..6406da91c 100644
--- a/src/render/renderstates/qcullface.cpp
+++ b/src/render/renderstates/qcullface.cpp
@@ -51,6 +51,11 @@ QCullFace::QCullFace(QNode *parent)
 {
 }
 
+/*! \internal */
+QCullFace::~QCullFace()
+{
+}
+
 QCullFace::CullingMode QCullFace::mode() const
 {
     Q_D(const QCullFace);