Rust Flow Control

Match

match VALUE {
    PATTERN => EXPRESSION,
    PATTERN => EXPRESSION,
    PATTERN => EXPRESSION,
}

If Let

fn main() {
    let config_max = Some(3u8);
    if let Some(max) = config_max {
        println!("The maximum is configured to be {}", max);
    }
}

Test the RHS is Some and give the value to the LHS
A shorthand for a match statement that matches a single pattern.

• Rust Error Handling