Trait std::ops::Deref
[−]
[src]
pub trait Deref {
type Target: ?Sized;
fn deref(&'a self) -> &'a Self::Target;
}The Deref`Dereftrait is used to specify the functionality of dereferencing operations like` trait is used to specify the functionality of dereferencing
operations like *v`*v`.
Examples
A struct with a single field which is accessible via dereferencing the struct.
use std::ops::Deref; struct DerefExample<T> { value: T } impl<T> Deref for DerefExample<T> { type Target = T; fn deref<'a>(&'a self) -> &'a T { &self.value } } fn main() { let x = DerefExample { value: 'a' }; assert_eq!('a', *x); }use std::ops::Deref; struct DerefExample<T> { value: T } impl<T> Deref for DerefExample<T> { type Target = T; fn deref<'a>(&'a self) -> &'a T { &self.value } } fn main() { let x = DerefExample { value: 'a' }; assert_eq!('a', *x); }
Associated Types
type Target: ?Sized
The resulting type after dereferencing
Required Methods
Implementors
impl<T> Deref for NonZero<T> where T: Zeroableimpl<T> Deref for Unique<T> where T: ?Sizedimpl<'a, T> Deref for &'a T where T: ?Sizedimpl<'a, T> Deref for &'a mut T where T: ?Sizedimpl<'b, T> Deref for Ref<'b, T> where T: ?Sizedimpl<'b, T> Deref for RefMut<'b, T> where T: ?Sizedimpl<T> Deref for Box<T> where T: ?Sizedimpl<T> Deref for Arc<T>impl<T> Deref for Rc<T> where T: ?Sizedimpl<'id, T> Deref for IdRef<'id, T>impl<'a, B> Deref for Cow<'a, B> where B: ToOwned + ?Sizedimpl Deref for Stringimpl<'a> Deref for DerefString<'a>impl<T> Deref for Vec<T>impl<'a, T> Deref for DerefVec<'a, T>impl Deref for CStringimpl Deref for OsStringimpl Deref for PathBufimpl<'mutex, T: ?Sized> Deref for MutexGuard<'mutex, T>impl<'rwlock, T: ?Sized> Deref for RwLockReadGuard<'rwlock, T>impl<'rwlock, T: ?Sized> Deref for RwLockWriteGuard<'rwlock, T>