mirror of
https://github.com/fluencelabs/rust-libp2p
synced 2025-07-17 18:31:57 +00:00
93 lines
2.8 KiB
Rust
93 lines
2.8 KiB
Rust
![]() |
// Copyright 2018 Parity Technologies (UK) Ltd.
|
||
|
//
|
||
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
// copy of this software and associated documentation files (the "Software"),
|
||
|
// to deal in the Software without restriction, including without limitation
|
||
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
// and/or sell copies of the Software, and to permit persons to whom the
|
||
|
// Software is furnished to do so, subject to the following conditions:
|
||
|
//
|
||
|
// The above copyright notice and this permission notice shall be included in
|
||
|
// all copies or substantial portions of the Software.
|
||
|
//
|
||
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||
|
// DEALINGS IN THE SOFTWARE.
|
||
|
|
||
|
use multistream_select::ProtocolChoiceError;
|
||
|
use std::fmt;
|
||
|
|
||
|
#[derive(Debug)]
|
||
|
pub enum UpgradeError<E> {
|
||
|
Select(ProtocolChoiceError),
|
||
|
Apply(E),
|
||
|
#[doc(hidden)]
|
||
|
__Nonexhaustive
|
||
|
}
|
||
|
|
||
|
impl<E> UpgradeError<E>
|
||
|
where
|
||
|
E: std::error::Error + Send + Sync + 'static
|
||
|
{
|
||
|
pub fn into_io_error(self) -> std::io::Error {
|
||
|
std::io::Error::new(std::io::ErrorKind::Other, self)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<E> UpgradeError<E> {
|
||
|
pub fn map_err<F, T>(self, f: F) -> UpgradeError<T>
|
||
|
where
|
||
|
F: FnOnce(E) -> T
|
||
|
{
|
||
|
match self {
|
||
|
UpgradeError::Select(e) => UpgradeError::Select(e),
|
||
|
UpgradeError::Apply(e) => UpgradeError::Apply(f(e)),
|
||
|
UpgradeError::__Nonexhaustive => UpgradeError::__Nonexhaustive
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pub fn from_err<T>(self) -> UpgradeError<T>
|
||
|
where
|
||
|
T: From<E>
|
||
|
{
|
||
|
self.map_err(Into::into)
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<E> fmt::Display for UpgradeError<E>
|
||
|
where
|
||
|
E: fmt::Display
|
||
|
{
|
||
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||
|
match self {
|
||
|
UpgradeError::Select(e) => write!(f, "select error: {}", e),
|
||
|
UpgradeError::Apply(e) => write!(f, "upgrade apply error: {}", e),
|
||
|
UpgradeError::__Nonexhaustive => f.write_str("__Nonexhaustive")
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<E> std::error::Error for UpgradeError<E>
|
||
|
where
|
||
|
E: std::error::Error
|
||
|
{
|
||
|
fn cause(&self) -> Option<&dyn std::error::Error> {
|
||
|
match self {
|
||
|
UpgradeError::Select(e) => Some(e),
|
||
|
UpgradeError::Apply(e) => Some(e),
|
||
|
UpgradeError::__Nonexhaustive => None
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
impl<E> From<ProtocolChoiceError> for UpgradeError<E> {
|
||
|
fn from(e: ProtocolChoiceError) -> Self {
|
||
|
UpgradeError::Select(e)
|
||
|
}
|
||
|
}
|
||
|
|