[aspectc-user] More demonstrations for applications of AspectC++?
os at aspectc.org
Mon Nov 21 17:23:45 CET 2011
I am not sure whether I really understood the two questions, but I'll do
my best to answer...
On 10/27/2011 02:00 PM, Markus Elfring wrote:
>> We have a quite nice tutorial on writing Qt-applications with AspectC++:
> I am more interested in use cases like the following than your example about addition of a QLabel display for the call of the member function "app.exec()".
> 1. Filtering of calls for functions with non-void return types
> Do you consider corresponding ways for the completion of error detection and exception handling currently?
AspectC++ can filter function signatures so that only non-void functions
are matched, e.g.
advice execution("% MyClasss::%(...)" && !"void MyClass::%(...)") : ...
or without redundancy
pointcut void_function() = "void ...::%(...)";
advice execution("% MyClasss::%(...)" && !void_function()) : ...
We have used this in an example in which we transformed C-style error
codes into exceptions. If you are interested, read our ETAPS 2005 paper:
http://www.aspectc.org/fileadmin/publications/etaps-sc-2005.pdf (can be
found on the publications page at www.aspectc.org)
> 2. Interception of write accesses to document attributes
> Is it possible to intercept accesses to model attributes (Gtk::TreeModel::ColumnRecord ⇒ Gtk::TreeModelColumn) from the class library "gtkmm"?
At the moment this would only be possible if write accesses were
guaranteed to be performed only by (interceptable) setter methods.
AspectC++ has no set/get pointcut function. I'm sorry, but I don't know
the internals of gtkmm.
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