Enum Error 

#[non_exhaustive]
pub enum Error {
    Transport,
    Decode,
    Version,
    RequiredExtension,
    UnexpectedStream,
    BoundsExceeded,
    Duplicate,
    Cancel,
    Timeout,
    Old,
    App(u16),
    NotFound,
    WrongSize,
    ProtocolViolation,
    Unauthorized,
    UnexpectedMessage,
    Unsupported,
    TooLarge,
    TooManyParameters,
    InvalidRole,
    UnknownAlpn(String),
}

A list of possible errors that can occur during the session.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Transport

Decode

Version

RequiredExtension

A required extension was not present

UnexpectedStream

An unexpected stream type was received

BoundsExceeded

Some VarInt was too large and we were too lazy to handle it

Duplicate

A duplicate ID was used

Cancel

Timeout

It took too long to open or transmit a stream.

Old

The group is older than the latest group and dropped.

App(u16)

NotFound

WrongSize

ProtocolViolation

Unauthorized

UnexpectedMessage

Unsupported

TooLarge

TooManyParameters

InvalidRole

UnknownAlpn(String)

Implementations

impl Error

pub fn to_code(&self) -> u32

An integer code that is sent over the wire.

pub fn from_code(code: u32) -> Self

Decode an error from a wire code.

pub fn from_transport(err: impl Error) -> Self

Convert a transport error into an Error, decoding stream reset codes.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.