//! Caching errors
use super::*;
use std::io;
use std::{
    fmt,
    error,
};

/// A partial cache entry initialisation error
#[derive(Debug)]
pub struct PartialInitError(pub(super) io::Error);

impl error::Error for PartialInitError
{
    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
	Some(&self.0)
    }
}
impl fmt::Display for PartialInitError
{
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
    {
	write!(f, "Failed to initialise a partial cache entry")
    }
}