C++ property types for setter/getter ?

[ahayzen-kdab]

Situation

Currently we have the following

C++ method	Rust method	Copy occurs ?
const T& getter() const	fn getter(&self) -> &T	No, just a reference?
void setter(const T&)	fn setter(&mut self, T)	Yes, const T& -> T conversion in C++

Possible changes

If we changed this to use T for the setter would this prevent copies in the C++ side, would we be able to "move" the value? Would QML respect this and would C++ developers understand this or would there be no advantage?

C++ method	Rust method	Copy occurs ?
const T& getter() const	fn getter(&self) -> &T	No, just a reference?
void setter(T)	fn setter(&mut self, T)	Maybe, can we move here?

Note that we can't use the assignment operator shortcut which usually occurs when going from a const T& to T, as our field is stored in the Rust struct.