glibmm r385 - in trunk: . glib/glibmm tools/m4

[murrayc svn gnome org]

Author: murrayc
Date: 2007-03-23 17:23:42 +0000 (Fri, 23 Mar 2007)
New Revision: 385
ViewCVS link: http://svn.gnome.org/viewcvs/glibmm?rev=385&view=rev

Modified:
   trunk/ChangeLog
   trunk/glib/glibmm/objectbase.h
   trunk/tools/m4/signal.m4
   trunk/tools/m4/vfunc.m4
Log:
2007-03-17  Armin Burgmeier  <armin openismus com>

        * tools/m4/signal.m4:
        * tools/m4/vfunc.m4: 
        Use static_cast in vfuncs and signal handlers to cast the
        wrapper object to ObjectBase*. This is enough to check whether the object is
        from a derived type or not. A slow dynamic_cast has only to be performed if it
        is derived, and the C++ vfunc needs to be called.
        * glib/glibmm/objectbase.h: This requires ObjectBase::is_derived_ to be public, 
        because it is called on a ObjectBase* rather than the actual type.
        This causes a slight speed up of vfuncs and default signal handler invokation.

        Also added commented-out inline versions of ObjectBase::_get_current_wrapper() and 
        ObjectBase::is_derived(), which could be used in the generated code if we find 
        that this has significant performance benefits. Note that these methods must be 
        additional to the non-inline methods, because inline methods are not usually exported in the 
        shared library.