#[derive(Debug, Clone, PartialEq, Eq)]
pub enum ReftableError {
    General(String),
    Io,
    Format,
    NotExist,
    Lock,
    Api,
    Zlib,
    EmptyTable,
    Refname,
    EntryTooBig,
    Outdated,
    OutOfMemory,
}

impl std::fmt::Display for ReftableError {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            ReftableError::General(msg) => write!(f, "general error: {}", msg),
            ReftableError::Io => write!(f, "I/O error"),
            ReftableError::Format => write!(f, "corrupt reftable file"),
            ReftableError::NotExist => write!(f, "file does not exist"),
            ReftableError::Lock => write!(f, "data is locked"),
            ReftableError::Api => write!(f, "misuse of the reftable API"),
            ReftableError::Zlib => write!(f, "zlib failure"),
            ReftableError::EmptyTable => write!(f, "wrote empty table"),
            ReftableError::Refname => write!(f, "invalid refname"),
            ReftableError::EntryTooBig => write!(f, "entry too large"),
            ReftableError::Outdated => write!(f, "data concurrently modified"),
            ReftableError::OutOfMemory => write!(f, "out of memory"),
        }
    }
}