128 lines
3.7 KiB
Rust
128 lines
3.7 KiB
Rust
//! The `result` module exposes a Result type that propagates one of many different Error types.
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use {
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solana_gossip::{cluster_info, gossip_error::GossipError},
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solana_ledger::blockstore,
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};
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#[derive(Debug)]
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pub enum Error {
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Io(std::io::Error),
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Recv(crossbeam_channel::RecvError),
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ReadyTimeout,
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RecvTimeout(crossbeam_channel::RecvTimeoutError),
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TrySend,
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Serialize(std::boxed::Box<bincode::ErrorKind>),
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ClusterInfo(cluster_info::ClusterInfoError),
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Send,
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Blockstore(blockstore::BlockstoreError),
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WeightedIndex(rand::distributions::weighted::WeightedError),
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Gossip(GossipError),
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}
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pub type Result<T> = std::result::Result<T, Error>;
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "solana error")
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}
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}
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impl std::error::Error for Error {}
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impl std::convert::From<crossbeam_channel::RecvError> for Error {
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fn from(e: crossbeam_channel::RecvError) -> Error {
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Error::Recv(e)
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}
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}
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impl std::convert::From<crossbeam_channel::ReadyTimeoutError> for Error {
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fn from(_e: crossbeam_channel::ReadyTimeoutError) -> Error {
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Error::ReadyTimeout
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}
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}
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impl std::convert::From<crossbeam_channel::RecvTimeoutError> for Error {
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fn from(e: crossbeam_channel::RecvTimeoutError) -> Error {
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Error::RecvTimeout(e)
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}
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}
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impl std::convert::From<cluster_info::ClusterInfoError> for Error {
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fn from(e: cluster_info::ClusterInfoError) -> Error {
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Error::ClusterInfo(e)
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}
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}
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impl<T> std::convert::From<crossbeam_channel::TrySendError<T>> for Error {
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fn from(_e: crossbeam_channel::TrySendError<T>) -> Error {
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Error::TrySend
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}
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}
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impl<T> std::convert::From<crossbeam_channel::SendError<T>> for Error {
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fn from(_e: crossbeam_channel::SendError<T>) -> Error {
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Error::Send
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}
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}
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impl std::convert::From<std::io::Error> for Error {
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fn from(e: std::io::Error) -> Error {
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Error::Io(e)
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}
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}
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impl std::convert::From<std::boxed::Box<bincode::ErrorKind>> for Error {
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fn from(e: std::boxed::Box<bincode::ErrorKind>) -> Error {
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Error::Serialize(e)
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}
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}
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impl std::convert::From<blockstore::BlockstoreError> for Error {
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fn from(e: blockstore::BlockstoreError) -> Error {
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Error::Blockstore(e)
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}
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}
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impl std::convert::From<rand::distributions::weighted::WeightedError> for Error {
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fn from(e: rand::distributions::weighted::WeightedError) -> Error {
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Error::WeightedIndex(e)
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}
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}
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impl std::convert::From<GossipError> for Error {
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fn from(e: GossipError) -> Error {
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Error::Gossip(e)
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}
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}
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#[cfg(test)]
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mod tests {
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use {
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crate::result::{Error, Result},
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crossbeam_channel::{unbounded, RecvError, RecvTimeoutError},
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std::{io, io::Write, panic},
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};
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fn send_error() -> Result<()> {
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let (s, r) = unbounded();
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drop(r);
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s.send(())?;
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Ok(())
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}
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#[test]
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fn from_test() {
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assert_matches!(Error::from(RecvError {}), Error::Recv(_));
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assert_matches!(
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Error::from(RecvTimeoutError::Timeout),
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Error::RecvTimeout(_)
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);
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assert_matches!(send_error(), Err(Error::Send));
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let ioe = io::Error::new(io::ErrorKind::NotFound, "hi");
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assert_matches!(Error::from(ioe), Error::Io(_));
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}
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#[test]
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fn fmt_test() {
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write!(io::sink(), "{:?}", Error::from(RecvError {})).unwrap();
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write!(io::sink(), "{:?}", Error::from(RecvTimeoutError::Timeout)).unwrap();
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write!(io::sink(), "{:?}", send_error()).unwrap();
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write!(
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io::sink(),
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"{:?}",
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Error::from(io::Error::new(io::ErrorKind::NotFound, "hi"))
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)
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.unwrap();
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}
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}
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