Crate unwrap_helpers

unwrap_helpers

Unwrap Macros to help Clean up code and improve production. This does include a pub use of https://github.com/Mrp1Dev/loop_unwrap to gain access to unwrap loop macros.

/// Works like .unwrap, if it’s an Err(_) or None it calls return. /// Will return no data or data. Can use Closures or functions that returns the parent functions return type.

Examples

fn ret_test_fail() -> i32 {
    let opt = None;

    let _ = unwrap_or_return!(opt, 0);

    1
}

fn ret_as_option_fail() -> Option<i32> {
    let opt = None;

    let _ = unwrap_or_return!(opt, Some(0));

    None
}

fn test_send(x: i32) -> i32 {
    x + 1
}

fn ret_fn_fail() -> i32 {
    let x = 5;
    let opt = None;

    let _ = unwrap_or_return!(opt, test_send(x));

    1
}

fn ret_closure_fail() -> i32 {
    let x = 5;
    let opt = None;

    let _ = unwrap_or_return!(opt, || x + 1);

    1
}

fn ret_closure_ret_fail() -> i32 {
    let x = 5;
    let opt = None;

    let _ = unwrap_or_return!(opt, || -> i32 { x + 1 });

    1
}

fn ret_closure_ret_fail_insert() -> i32 {
    let x = 5;
    let opt = None;

    let _ = unwrap_or_return!(opt, |x1| x1 + 1, x);

    1
}

fn test_no_return() {
    let input = Option::None;
    let parsed_input = unwrap_or_return!(input);
}

Macros

unwrap_break

Works like .unwrap, if it’s an Err or None, it calls break on the loop. Prints an error message with println!() if provided. Loop Label can be provided in any order besides the Result/Option being the first argument. If loop label is proivded, the specified loop will be break;-ed.

unwrap_break_err

Works only on Result enum. If the value is Err(e), breaks the loop returning Err(e). Otherwise, it unwraps and the code continues. Supports loop labels.

unwrap_continue

Works like .unwrap, if it’s an Err or None, it calls continue on the loop. Prints an error message with println!() if provided. Loop Label can be provided in any order besides the Result/Option being the first argument. If loop label is proivded, the specified loop will be continued.

unwrap_or_return

Attempts to unwrap the given value expression

Traits

ToOption