Struct CallError 

pub struct CallError { /* private fields */ }

An error returned by a blocking device call.

When a task panics on a device’s runner thread, the panic payload is captured and carried here instead of being logged and dropped. A CallError without a payload means the runner channel disconnected before the task could produce a result.

Implementations

impl CallError

pub fn message(&self) -> Option<&str>

Returns the panic message if the failure was a panic whose payload is a string (the common case for panic!, indexing, unwrap, …).

pub fn into_panic(self) -> Option<Box<dyn Any + Send>>

Consumes the error and returns the captured panic payload, if any.

The payload can be handed to std::panic::resume_unwind to re-raise the original panic on the caller’s thread.

pub fn resume(self) -> !

Re-raises the failure on the current thread, diverging.

Trait Implementations

impl Debug for CallError

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

Formats the value using the given formatter.