oh... it's already in qt. I've been doing it with my own class all this time.
On Thu, Mar 7, 2019 at 8:10 PM Tor Arne Vestbø <[email protected]> wrote: > https://doc.qt.io/qt-5/qscopeguard.html 😊 > > Tor Arne > > > On 7 Mar 2019, at 18:01, Volker Hilsheimer <[email protected]> > wrote: > > > > Ahoy, > > > > In what little development I’ve done in golang, I appreciated the > “defer” statement as a means to write cleaner code. Basically, defer > schedules a statement for execution when the stack unwinds. > > > > https://tour.golang.org/flowcontrol/12 > > > > We have several specialized helper classes in Qt for similar purposes, > f.ex QMutexLocker and friends, or the internal QBoolBlocker [1]. Seeing the > various specialized classes we have, I thought that something generic in Qt > could be useful to have (although our specialised classes provide some > additional convenience and/or logic). > > > > So, I pushed a few lines code to > > > > https://git.qt.io/vohilshe/qt_defer > > > > Would like to hear what you think. > > > > Perhaps someone can find ways to make this more elegant without > introducing tons of preprocessor/macro shenanigans, or perhaps even without > depending on C++17's implicit template argument deduction (without enabling > C++17 in the config this doesn't build for me, even though I don’t use auto > in the template paramter list). > > > > > > Cheers, > > Volker > > > > > > [1] which was requested to be made public in > https://bugreports.qt.io/browse/QTBUG-38575 > > > > > > _______________________________________________ > > Development mailing list > > [email protected] > > https://lists.qt-project.org/listinfo/development > > _______________________________________________ > Development mailing list > [email protected] > https://lists.qt-project.org/listinfo/development >
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