Trait collections::std::ops::Deref
[−]
[src]
pub trait Deref { type Target: ?Sized; fn deref(&self) -> &Self::Target; }
The Deref
trait is used to specify the functionality of dereferencing
operations, like *v
.
Deref
also enables 'Deref
coercions'.
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(&self) -> &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(&self) -> &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 Box<T> where T: ?Sized
impl<T> Deref for Arc<T> where T: ?Sized
impl<T> Deref for Rc<T> where T: ?Sized
impl<'a, B: ?Sized> Deref for Cow<'a, B> where B: ToOwned
impl<T> Deref for NonZero<T> where T: Zeroable
impl<T> Deref for Unique<T> where T: ?Sized
impl<T> Deref for Shared<T> where T: ?Sized
impl<'a, T> Deref for &'a T where T: ?Sized
impl<'a, T> Deref for &'a mut T where T: ?Sized
impl<'b, T> Deref for Ref<'b, T> where T: ?Sized
impl<'b, T> Deref for RefMut<'b, T> where T: ?Sized
impl Deref for String
impl<T> Deref for Vec<T>