[Development] Disabling exception support in QtCore?

André Somers andre at familiesomers.nl
Thu Oct 10 15:14:02 CEST 2013

Op 10-10-2013 14:53, Olivier Goffart schreef:
> On Thursday 03 October 2013 10:38:59 Thiago Macieira wrote:
>> On quinta-feira, 3 de outubro de 2013 10:36:44, Olivier Goffart wrote:
>>>> I dislike allowing this via the signal-slot mechanism because I see
>>>> throwing from a slot as incompatible with the connection semantics.
>>>> That would mean any signal could throw ANY exception. It would also
>>>> preempt
>>>> the execution of further slots, which might be important.
>>>> Usually the person who connects a signal to a slot is a completely
>>>> different developer than who wrote the signal or the slot.
>>> I think your assumptions are false.
>>> When using signals and slot in an application one write both the signal
>>> and
>>> the slot at the same time, to wire two part of that same appliation.
>> That's not at all true. If it were, we wouldn't have signals or slots in our
>> public API. If people were supposed to write the signals and the slots they
>> connect, all our signals and slots would be private.
> I did not said that the signal and the slot were always written by the same
> person.  And I explicitly said for an application, and you are talking about
> libraries.
Even for applications this statement is nonsense. For all but trivial 
applications that during their lifetime only get worked on by a single 
developer, the likelyhood of the same person always writing the slots 
for every signal goes to 0 rapidly with the age and number of developers 
on a project.


You like Qt?
I am looking for collegues to join me at i-Optics!

More information about the Development mailing list