[rust-qt-binding-generator] [Bug 448087] rust-qt-binding-generator: Undefined Behaviour: One can obtain a mutable reference to a Rust struct from an immutable reference.

[Andreas Grois]

https://bugs.kde.org/show_bug.cgi?id=448087

--- Comment #3 from Andreas Grois <a...@grois.info> ---
Sorry, this is not really relevant to the bug, but I just have to correct
myself here. I was too tired yesterday to realize that also the &mut self ->
&self situation can cause issues. Actually #406178 describes such a call stack.
With Rust's aliasing rules the compiler can assume that the call to C++ (which
does not take any references into the memory pointed to by &mut self) is
independent of &mut self, so it need not guarantee that the memory referenced
by &mut self is in a consistent (or up-to-date) state when it triggers the
signal.

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