Enum libp2p_core::upgrade::UpgradeError

pub enum UpgradeError<E> {
    Select(NegotiationError),
    Apply(E),
}

Error that can happen when upgrading a connection or substream to use a protocol.

Variants

Select(NegotiationError)

Error during the negotiation process.

Apply(E)

Error during the post-negotiation handshake.

Implementations

impl<E> UpgradeError<E>

pub fn map_err<F, T>(self, f: F) -> UpgradeError<T> where
    F: FnOnce(E) -> T, 

pub fn into_err<T>(self) -> UpgradeError<T> where
    T: From<E>, 

Trait Implementations

impl<E: Debug> Debug for UpgradeError<E>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<E> Display for UpgradeError<E> where
    E: Display, 

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<E> Error for UpgradeError<E> where
    E: Error + 'static, 

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

pub fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

pub fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

pub fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl<E> From<NegotiationError> for UpgradeError<E>

fn from(e: NegotiationError) -> Self

Performs the conversion.