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add Display impl for ethcore::Error, UtilError

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This commit is contained in:
Robert Habermeier
2016-05-20 18:13:16 -04:00
parent b0452cf309
commit a7d7cb9ecb
2 changed files with 197 additions and 1 deletions
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30
util/src/error.rs
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@@ -30,6 +30,17 @@ pub enum BaseDataError {
NegativelyReferencedHash(H256),
}
impl fmt::Display for BaseDataError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
BaseDataError::NegativelyReferencedHash(hash) => {
f.write_fmt(format_args!("Entry {} removed from database more times \
than it was added.", hash))
}
}
}
}
#[derive(Debug)]
/// General error type which should be capable of representing all errors in ethcore.
pub enum UtilError {
@@ -57,6 +68,25 @@ pub enum UtilError {
BadSize,
}
impl fmt::Display for UtilError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
UtilError::Crypto(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::StdIo(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::Io(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::AddressParse(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::AddressResolve(Some(ref err)) => f.write_fmt(format_args!("{}", err)),
UtilError::AddressResolve(_) => f.write_str("Failed to resolve network address."),
UtilError::FromHex(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::BaseData(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::Network(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::Decoder(ref err) => f.write_fmt(format_args!("{}", err)),
UtilError::SimpleString(ref msg) => f.write_str(&msg),
UtilError::BadSize => f.write_str("Bad input size."),
}
}
}
#[derive(Debug, PartialEq, Eq)]
/// Error indicating an expected value was not found.
pub struct Mismatch<T: fmt::Debug> {