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Drop std::error::Error impl for DecodeError

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It appears to be effectively-deprecated in Rust now, and didn't
really appear to serve a lot of purpose anyway.
This commit is contained in:
Matt Corallo 2020-04-17 21:14:54 -04:00
parent 7e0b57615f
commit f5b0663f6a
1 changed files with 8 additions and 14 deletions
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22
lightning/src/ln/msgs.rs
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@ -23,7 +23,6 @@ use bitcoin::blockdata::script::Script;
use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures}; use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
use std::error::Error;
use std::{cmp, fmt}; use std::{cmp, fmt};
use std::io::Read; use std::io::Read;
use std::result::Result; use std::result::Result;
@ -688,21 +687,16 @@ pub(crate) struct OnionErrorPacket {
pub(crate) data: Vec<u8>, pub(crate) data: Vec<u8>,
} }
impl Error for DecodeError {
fn description(&self) -> &str {
match *self {
DecodeError::UnknownVersion => "Unknown realm byte in Onion packet",
DecodeError::UnknownRequiredFeature => "Unknown required feature preventing decode",
DecodeError::InvalidValue => "Nonsense bytes didn't map to the type they were interpreted as",
DecodeError::ShortRead => "Packet extended beyond the provided bytes",
DecodeError::BadLengthDescriptor => "A length descriptor in the packet didn't describe the later data correctly",
DecodeError::Io(ref e) => e.description(),
}
}
}
impl fmt::Display for DecodeError { impl fmt::Display for DecodeError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str(self.description()) match *self {
DecodeError::UnknownVersion => f.write_str("Unknown realm byte in Onion packet"),
DecodeError::UnknownRequiredFeature => f.write_str("Unknown required feature preventing decode"),
DecodeError::InvalidValue => f.write_str("Nonsense bytes didn't map to the type they were interpreted as"),
DecodeError::ShortRead => f.write_str("Packet extended beyond the provided bytes"),
DecodeError::BadLengthDescriptor => f.write_str("A length descriptor in the packet didn't describe the later data correctly"),
DecodeError::Io(ref e) => e.fmt(f),
}
} }
} }