Trait OverMut
ov
pub trait OverMut { fn over_mut<F, Ret>(&mut self, f: F) -> Ret where F: FnOnce(&mut Self) -> Ret, { ... } }
Transform by unique reference (&mut self)
&mut self
fn over_mut<F, Ret>(&mut self, f: F) -> Ret where F: FnOnce(&mut Self) -> Ret,
impl<T> OverMut for T