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use std::error::Error;
use std::fmt;
use std::net::AddrParseError;
use std::num::ParseIntError;
use super::Family;
#[derive(Clone, PartialEq, Eq, Hash)]
pub struct NetworkLengthTooLongError(usize, Family);
impl NetworkLengthTooLongError {
#[doc(hidden)]
pub fn new(len: usize, family: Family) -> Self {
NetworkLengthTooLongError(len, family)
}
}
impl fmt::Debug for NetworkLengthTooLongError {
fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
write!(
w,
"Network length {} is too long for {:?} (maximum: {})",
self.0,
self.1,
self.1.len()
)
}
}
impl fmt::Display for NetworkLengthTooLongError {
fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(self, w)
}
}
impl Error for NetworkLengthTooLongError {
fn description(&self) -> &str {
"network length too long"
}
}
#[derive(Clone, PartialEq)]
pub enum NetworkParseError {
InvalidHostPart,
AddrParseError(AddrParseError),
NetworkLengthParseError(ParseIntError),
NetworkLengthTooLongError(NetworkLengthTooLongError),
}
impl fmt::Debug for NetworkParseError {
fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
match *self {
NetworkParseError::InvalidHostPart => {
write!(w, "host part of address was not zero")
},
NetworkParseError::AddrParseError(ref e) => {
write!(w, "couldn't parse address in network: {}", e)
},
NetworkParseError::NetworkLengthParseError(ref e) => {
write!(w, "couldn't parse length in network: {}", e)
},
NetworkParseError::NetworkLengthTooLongError(ref e) => {
write!(w, "invalid length for network: {}", e)
},
}
}
}
impl fmt::Display for NetworkParseError {
fn fmt(&self, w: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(self, w)
}
}
impl Error for NetworkParseError {
fn description(&self) -> &str {
"network parse error"
}
fn cause(&self) -> Option<&Error> {
match *self {
NetworkParseError::InvalidHostPart => None,
NetworkParseError::AddrParseError(ref e) => Some(e),
NetworkParseError::NetworkLengthParseError(ref e) => Some(e),
NetworkParseError::NetworkLengthTooLongError(ref e) => Some(e),
}
}
}
impl From<AddrParseError> for NetworkParseError {
fn from(e: AddrParseError) -> Self {
NetworkParseError::AddrParseError(e)
}
}
impl From<ParseIntError> for NetworkParseError {
fn from(e: ParseIntError) -> Self {
NetworkParseError::NetworkLengthParseError(e)
}
}
impl From<NetworkLengthTooLongError> for NetworkParseError {
fn from(e: NetworkLengthTooLongError) -> Self {
NetworkParseError::NetworkLengthTooLongError(e)
}
}