Trait core::ops::DerefExperimental
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pub trait Deref<Result: ?Sized>: ?Sized { fn deref<'a>(&'a self) -> &'a Result; }
The Deref
trait is used to specify the functionality of dereferencing
operations like *v
.
Example
A struct with a single field which is accessible via dereferencing the struct.
struct DerefExample<T> { value: T } impl<T> Deref<T> for DerefExample<T> { fn deref<'a>(&'a self) -> &'a T { &self.value } } fn main() { let x = DerefExample { value: 'a' }; assert_eq!('a', *x); }struct DerefExample<T> { value: T } impl<T> Deref<T> for DerefExample<T> { fn deref<'a>(&'a self) -> &'a T { &self.value } } fn main() { let x = DerefExample { value: 'a' }; assert_eq!('a', *x); }
Required Methods
fn deref<'a>(&'a self) -> &'a Result
The method called to dereference a value