On 13 Oct 2025, at 19:14, Scott Bloom <[email protected]> wrote: > > As part of a pre-checkin “semi-lint” strategy (along with proper formatting > etc), I am investigating the usage of the tool include-what-you-use. > https://github.com/include-what-you-use/include-what-you-use > Essentially, it confirms that both every source (and header) file includes > every header directly to reduce the possibility of a compile break if a > dependent header changes what it includes. > It also reports when you include something that you don’t need, reducing > compile time and dependencies. > It supports mapping files, for when a file is intentionally supposed to be > included transitively. For instance, including <iostream> vs <iosfwd> will > not report issues. > The problem is with Qt, every include is transitive. You include > <QComboBox> not <qcombobox.h> for instance. > Creating this mapping file by hand, as you could imagine would be unlikely > to be complete (or correct). > My question, does this mapping file already exist somewhere? If so where? > If not, would this be something that would ever be considered? To be frank, I > don’t want to bother with the enhancement request if it will just sit in the > dustbin of issues of low priority. > Thanks. > > Scott > -- > Development mailing list > [email protected] > https://lists.qt-project.org/listinfo/development
Hi, Taking a look at the tool (thanks for the pointer, looks interesting), I saw that they already have some Qt 5 mapping files provided. There’s also a python script named iwyu-mapgen-qt.py under the mapgen folder that could do what you want and create the file you are after for Qt 6. Best regards Samuel
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