Derive Macros

Automatically implement common traits with derive.

Difficulty

Beginner

Code

#[derive(Debug, Clone, PartialEq)]
struct Color {
    r: u8,
    g: u8,
    b: u8,
}

fn main() {
    let red = Color { r: 255, g: 0, b: 0 };
    let red2 = red.clone();
    println!("{:?}", red);
    println!("equal: {}", red == red2);
}

Explanation

This example demonstrates how to use derive macros in Rust. Read the code carefully to understand the flow. Pay attention to where values are created, borrowed, moved, or consumed.

Key Concepts

• Rust's strong type system catches errors at compile time
• Ownership and borrowing rules ensure memory safety
• Pattern matching makes code expressive and exhaustive

Related Topics

Browse more examples in the traits category to build a complete understanding of this topic.