Il 18/07/20 12:08, Arno Rehn ha scritto:
Can't we just hide the QProperty behind a method call, like with an ordinary getter method? E.g.class Foo { // ... QPropert<int> &bar() { Q_D(Foo); return d->bar; } }; struct FooPrivate { QProperty<int> bar; }; Sure, property access then isn't as nice as with the struct wrapper, because you have the method call in between, but at least it's not undefined behavior and there's a lot less complexity when putting it into the pimpl object.
I'm assuming that one of the goals is to make the new property syntax invisible and identical for the users. Code like this
auto value = obj->property();must still compile, and decltype(value) better be the actual property type and not any proxy object (which are still second class citizens in C++).
My 2 c, -- Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer KDAB (France) S.A.S., a KDAB Group company Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com KDAB - The Qt, C++ and OpenGL Experts
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