Enum WasmCommunicationError 

pub enum WasmCommunicationError {
    Js(String),
    Lagged(u64),
    Closed,
}

Error type for the WASM communication backend’s send and receive operations.

Distinguishes recoverable failures (which leave the shared IPC client running) from the fatal closed-channel state. Without this distinction the client’s processing loop would treat a permanently-closed broadcast channel as recoverable and busy-loop on it, since a closed channel returns an error immediately and forever without ever awaiting.

Variants

Js(String)

An error returned by the JavaScript backend (e.g. a failed send). Recoverable: the IPC client keeps running so future operations can succeed.

Lagged(u64)

The incoming message receiver fell behind and 0 messages were dropped. Recoverable: the next receive resumes normally.

Closed

The communication channel was closed because all senders were dropped. This is fatal: the IPC client’s processing loop stops cleanly instead of busy-looping on the closed channel.

Trait Implementations

impl Debug for WasmCommunicationError

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

Formats the value using the given formatter.

impl Display for WasmCommunicationError

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

Formats the value using the given formatter.

impl Error for WasmCommunicationError

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 IpcErrorKind for WasmCommunicationError

fn is_fatal(&self) -> bool

Returns true if the error is fatal and the IPC client should stop processing messages, or false if the error is recoverable and the client should keep running.