[Development] templates as QObjects

[Olivier Goffart]

On Wednesday 20 June 2012 20:42:19 Peter Kümmel wrote:
> After the "noise" here "real" code:
> 
> https://qt.gitorious.org/~syntheticpp/qt/qt4/commit/c1b839494d90e8c1a93b0dd2
> e08a2a365095d89f
> 
> Based on Qt 4.8.2.
> moc creates a header when it finds a template, if not then nothing changes.
> (It builds Qt with the patch, but it's a hack in the parser)
> 
> 
> In summary
> 
>    Foo<int> foo1;
>    Foo<int> foo2;
>    Foo<double> foo3;
> 
>    // works
>    QObject::connect(&foo1, SIGNAL(asignal(T)), &foo2, SLOT(aslot(T)));
> 
> 
>    // this should be possible, but string matching fails
>    // no problem in Qt5
>    QObject::connect(&a, SIGNAL(asignal(int)), &foo1, SLOT(aslot(T)));
> 
> 
>    // this should not be possible, but it runs because of the (void*) casts
> in the background // maybe catched in Qt5
>    QObject::connect(&foo1, SIGNAL(asignal(T)), &foo3, SLOT(aslot(T)));
> 
> 
> It's only an experiment, to see what could be done without using clang.
> 
> Maybe I bring it up at the QtCS.

Nice stuff. Now you just need to make it for Qt5, and handle all the special 
cases :-)

There is a room for tests in tets/auto/tools/moc (I'm saying that because you 
made your test somewhere else)

-- 
Olivier

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