Rust-lang Playground link struct Foo { val: i32 } impl Foo { pub fn maybe_get(&mut self) -> Option<&mut i32> { Some(&mut self.val) } pub fn definitely_get(&mut self...

When I wondered how a mutable reference could move into a method, all the questions began. let a = &mut x; a.somemethod(); // value of a should have moved a.anothermethod(); // but it works. I...