fend-core 1.1.4

use crate::error::FendError;

pub trait Interrupt {
    fn should_interrupt(&self) -> bool;
}

pub(crate) fn test_int<I: crate::error::Interrupt>(int: &I) -> Result<(), FendError> {
    if int.should_interrupt() {
        Err(FendError::Interrupted)
    } else {
        Ok(())
    }
}

#[derive(Default)]
pub(crate) struct Never {}
impl Interrupt for Never {
    fn should_interrupt(&self) -> bool {
        false
    }
}