Macro bail 

macro_rules! bail {
    ($($args:tt)+) => { ... };
}

Returns early with an error.

Equivalent to return Err(bevy_error!(...)) As a result the returned error defaults to Severity::Panic. As with bevy_error! the severity can be changed by providing a severity as the first argument. To return early only when a condition is false, use ensure!.

Example

use bevy_ecs::{bail, error::{BevyError, Severity}};

fn do_some_stuff(val: i32) -> Result<(), BevyError> {
    if val < 0 {
        bail!(Severity::Warning, "Something is broken: {}", val);
    } else if val == 0 {
        bail!("Value really can't be zero");
    }

    // ...
    Ok(())
}