Rust – Deref Trait
Deref<T> trait in Rust is used for customizing dereferencing operator (*) behavior. Implementing the Deref <T> treats the smart pointer as a reference. Therefore, any code that references the deref trait would also refer to smart pointers.
Regular References in Deref Trait:
Regular reference in Rust is a pointer that points to a value stored in a different memory location. In this example, we see cite the example of two variables – variable1 and variable2. Then, we create a reference as well as dereference to demonstrate regular references use in the Deref trait.
Deref Trait Implementation:
Deref trait is a library in Rust that implements the deref method. Deref is used for dereferencing operations as we did in this example (*variable 2). We create a structure GFG which is a generic type (T) and then implemented the Deref trait.
- the GFG struct type is being implemented by Deref Trait
- gfg_variable is the variable returned by the deref() method after the deref trait is implemented.
- Generally, associated types are used to declare the generic type parameter, and type target =T is declared as an associated type for the Deref trait.