//! Errors

/// An error indicating that the service with a `K`-typed key failed with an
/// error.
pub struct Failed<K>(pub K, pub crate::BoxError);

// === Failed ===

impl<K: std::fmt::Debug> std::fmt::Debug for Failed<K> {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        f.debug_tuple("Failed")
            .field(&self.0)
            .field(&self.1)
            .finish()
    }
}

impl<K> std::fmt::Display for Failed<K> {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
        self.1.fmt(f)
    }
}

impl<K: std::fmt::Debug> std::error::Error for Failed<K> {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        Some(&*self.1)
    }
}