Error Handling

NAME wyzer-error-handling - Explicit error propagation and resolution

DESCRIPTION Wyzer utilizes a functional approach for error handling via a built-in Result enum. Errors are explicit and must be handled.

SYNOPSIS: RESULT ENUM

fn divide(a: u32, b: u32) -> Result<u32, str> {
    if b == 0 {
        return Err("Division by zero");
    }
    Ok(a / b)
}

RESULT DETAILS

• Result<T, E>: A core enum representing either success (Ok(T)) or failure (Err(E)).
• return Err(...): Explicitly returns the error variant.

SYNOPSIS: HANDLING

fn main() {
    let result = divide(10, 2);

    match result {
        Result::Ok(value) => { /* ... */ },
        Result::Err(msg) => { /* ... */ },
    }
}

HANDLING DETAILS

• match: Due to exhaustiveness guarantees, developers are forced to explicitly handle both the Ok and Err variants.