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    use std::{fmt, error};
    use ser::Error as ReaderError;

    pub type MessageResult<T> = Result<T, Error>;

    #[derive(Debug, PartialEq, Clone)]
    pub enum Error {
    	/// Deserialization failed.
    	Deserialize,
    	/// Command has wrong format or is unsupported.
    	InvalidCommand,
    	/// Network magic comes from different network.
    	InvalidMagic,
    	/// Invalid checksum.
    	InvalidChecksum,
    	/// Invalid version.
    	InvalidVersion,
    }

    impl From<ReaderError> for Error {
    	fn from(_: ReaderError) -> Self {
    		Error::Deserialize
    	}
    }

    impl fmt::Display for Error {
    	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    		f.write_str(error::Error::description(self))
    	}
    }

    impl error::Error for Error {
    	fn description(&self) -> &str {
    		match *self {
    			Error::Deserialize => "Message Deserialization Error",
    			Error::InvalidCommand => "Invalid Message Command",
    			Error::InvalidMagic => "Invalid Network Magic",
    			Error::InvalidChecksum => "Invalid message chacksum",
    			Error::InvalidVersion => "Unsupported protocol version",
    		}
    	}
    }

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