Tor Arne +2! :D
________________________________________ From: Development [[email protected]] on behalf of Jason H [[email protected]] Sent: Thursday, March 7, 2019 11:59 PM To: Tor Arne Vestbø Cc: Qt development mailing list Subject: Re: [Development] Go's "defer" statement for C++/Qt The verbiage in the example is wrong: code_that_might_through_exceptions(); should be: code_that_might_throw_exceptions(); Took me a moment to figure out just what it meant. > Sent: Thursday, March 07, 2019 at 12:09 PM > From: "Tor Arne Vestbø" <[email protected]> > To: "Volker Hilsheimer" <[email protected]> > Cc: "Qt development mailing list" <[email protected]> > Subject: Re: [Development] Go's "defer" statement for C++/Qt > > 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 > _______________________________________________ Development mailing list [email protected] https://lists.qt-project.org/listinfo/development _______________________________________________ Development mailing list [email protected] https://lists.qt-project.org/listinfo/development
