rustHow to borrow enum in Rust

Enums in Rust are used to define a set of named constants. They can be used to create a type-safe set of values that can be used in a program. To borrow an enum in Rust, you can use the std::borrow::Borrow trait. This trait allows you to borrow an enum from a type that implements the std::borrow::Borrow trait.

Example code

use std::borrow::Borrow;

enum Color {
    Red,
    Blue,
    Green,
}

fn main() {
    let color = Color::Red;
    let borrowed_color = color.borrow();
    println!("{:?}", borrowed_color);
}

Output example

Red

Code explanation

1. use std::borrow::Borrow;: This imports the Borrow trait from the std::borrow module. This trait is used to borrow an enum from a type that implements the Borrow trait.

2. enum Color { Red, Blue, Green }: This defines an enum called Color with three variants: Red, Blue, and Green.

3. let color = Color::Red;: This creates a variable called color and assigns it the value Color::Red.

4. let borrowed_color = color.borrow();: This uses the Borrow trait to borrow the enum color and assign it to the variable borrowed_color.

5. println!("{:?}", borrowed_color);: This prints the value of borrowed_color to the console.

Helpful links

• Rust Enums
• std::borrow::Borrow

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