Re:Rust's 2017 roadmap, six months in
by pcwalton on Wednesday July 05, 2017 @05:22PM
(#14706216)
Name mangling is almost completely a non-issue. We solved it years ago for the Servo SpiderMonkey bindings, to name one instance.
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What is the most difficult part for Qt then? Translating some of its concepts in Rust?
AFAICT, QT has its own implementation of signals and slots (events and event handlers essentially) which is a pain for Rust's ownership model and it also has a code generator that deals with some of C++'s limitations, making it harder to generate usable bindings. If that weren't enough, there is no native (clean) Rust way to do C++ inheritance which is another big pain.
Rust doesn't have a concept of inheritance and overriding which is a pretty key part of the qt design.
If you are okay to use qt out of the box, there are a few bindings. But you won't be able to customise it like you would with actual qt.