Enum DecodeError 

pub enum DecodeError {
    Io(Error),
    Protocol(Box<str>),
}

Error from incremental decoding — a genuine protocol violation or an I/O failure, never a short read (that is DecodeStep::Pending).

WHY: Separating “need more bytes” from “the wire is malformed” is what lets one decoder resume across non-blocking reads without spurious errors.

WHAT: An I/O error surfaced from the source, or a protocol-level violation the decoder detected.

HOW: derive_more supplies Display/From; Io converts from io::Error.

Variants

Io(Error)

The underlying source returned an I/O error (not WouldBlock).

Protocol(Box<str>)

The bytes on the wire violate the frame format.

Implementations

impl DecodeError

pub fn protocol(message: impl Into<Box<str>>) -> Self

Build a DecodeError::Protocol from anything string-like.

Trait Implementations

impl Debug for DecodeError

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

Formats the value using the given formatter.

impl Display for DecodeError

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

Formats the value using the given formatter.

impl Error for DecodeError

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

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<Error> for DecodeError

fn from(value: Error) -> Self

Converts to this type from the input type.