Enum LoopError 

pub enum LoopError {
    Stream(StreamError),
    Aborted,
    ToolFatal {
        tool: String,
        reason: String,
    },
    InvalidContinuation(String),
}

Why the loop terminated abnormally.

A successful run returns Ok(messages) with no error. The loop’s natural stop condition (no more tool calls + no follow-up) does not produce an error.

Variants

Stream(StreamError)

Stream transport raised an unrecoverable error. The provider implementation decides what’s recoverable; everything that bubbles up through StreamFn::stream ends the run.

Aborted

Caller cancelled via the abort signal.

ToolFatal

A tool encountered an unrecoverable failure and requested that the loop stop immediately rather than append a recoverable context event.

Fields

tool: String

reason: String

InvalidContinuation(String)

Cannot continue without a starting message: run_continue was called on an empty context, or the trailing message is assistant (which the model would not respond to).

Trait Implementations

impl Debug for LoopError

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

Formats the value using the given formatter.

impl Display for LoopError

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

Formats the value using the given formatter.

impl Error for LoopError

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<StreamError> for LoopError

fn from(source: StreamError) -> Self

Converts to this type from the input type.