Struct Error 

pub struct Error {
    pub code: String,
    pub message: String,
    pub retryable: bool,
}

An error carried in a response or welcome, or produced by the host session on the agent’s behalf (a missing capability, a passed deadline, a lost connection).

On the wire: {0: code, 1: message, 2: retryable}.

Fields

code: String

Stable snake_case code; see code.

message: String

Human-readable description, including any hint for the user.

retryable: bool

Whether sending the same request again can succeed.

Implementations

impl Error

pub fn new(code: &str, message: impl Into<String>) -> Error

An error with code, retryable as retryable says (not retryable for codes this version does not define).

pub fn unknown_method(method: Method) -> Error

The agent does not implement method.

pub fn capability_missing(method: Method, missing: Capabilities) -> Error

method needs missing, which the agent did not advertise.

pub fn deadline_exceeded(method: Method, id: u32, deadline_ms: u32) -> Error

Request id for method did not finish within deadline_ms.

pub fn frame_too_large(method: Method, id: u32, size: u64, limit: u32) -> Error

The method message for request id is size bytes, over limit.

pub fn disconnected(reason: impl Display) -> Error

The connection is gone because of reason; carries the reconnect hint.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Self

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<'bytes, Ctx> Decode<'bytes, Ctx> for Error

fn decode( __d777: &mut Decoder<'bytes>, __ctx777: &mut Ctx, ) -> Result<Error, Error>

Decode a value using the given Decoder.

fn nil() -> Option<Self>

If possible, return a nil value of Self.

impl Display for Error

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

Formats the value using the given formatter.

impl<Ctx> Encode<Ctx> for Error

fn encode<__W777>( &self, __e777: &mut Encoder<__W777>, __ctx777: &mut Ctx, ) -> Result<(), Error<__W777::Error>>

where __W777: Write,

Encode a value of this type using the given Encoder.

fn is_nil(&self) -> bool

Is this value of Self a nil value?

impl Eq for Error

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.

impl PartialEq for Error

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error