[Qt-interest] why signals are not objects?

[Luca Ferrari]

Ok, maybe a trivial question, but I didn't find anything about in the 
archives: why signals are not implemented as c++ objects? Should not be 
simpler the implementation of the signal/slot mechanism? I agree that the moc 
provides more expressiveness but objects have a simpler implementation.
So, what is the reason for choosing the moc instead of a set of classes?

Luca