Enum RuntimeError 

pub enum RuntimeError {
    Workflow(WorkflowError),
    Build(BuildErrors),
    Backend(BackendError),
    Codec(CodecError),
    Task(BoxError),
    Join(JoinError),
    InstanceAlreadyExists(String),
}

Typed error for the sayiir runtime layer.

Replaces BoxError in internal runtime APIs, keeping BoxError only at true user boundaries (codec traits, user task callbacks).

Variants

Workflow(WorkflowError)

Workflow logic error (cancellation, definition mismatch, task not found, etc.)

Build(BuildErrors)

Build/hydration errors (duplicate IDs, missing tasks, empty branches).

Backend(BackendError)

Persistent backend error (storage failures).

Codec(CodecError)

Codec encode/decode error (schema mismatch, serialization failure).

Task(BoxError)

User task execution error (opaque — from user-provided code).

Join(JoinError)

Tokio task join error (branch spawn failures).

InstanceAlreadyExists(String)

A workflow instance with this ID already exists (conflict policy = Fail).

Implementations

impl RuntimeError

pub fn is_timeout(&self) -> bool

Returns true if this error is a TaskTimedOut workflow error.

pub fn is_decode_error(&self) -> bool

Returns true if this error is a codec decode failure (schema mismatch).

Trait Implementations

impl Debug for RuntimeError

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

Formats the value using the given formatter.

impl Display for RuntimeError

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

Formats the value using the given formatter.

impl Error for RuntimeError

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<BackendError> for RuntimeError

fn from(source: BackendError) -> Self

Converts to this type from the input type.

impl From<Box<dyn Error + Send + Sync>> for RuntimeError

fn from(err: BoxError) -> Self

Converts to this type from the input type.

impl From<BuildError> for RuntimeError

fn from(error: BuildError) -> Self

Converts to this type from the input type.

impl From<BuildErrors> for RuntimeError

fn from(source: BuildErrors) -> Self

Converts to this type from the input type.

impl From<CodecError> for RuntimeError

fn from(source: CodecError) -> Self

Converts to this type from the input type.

impl From<JoinError> for RuntimeError

fn from(source: JoinError) -> Self

Converts to this type from the input type.

impl From<WorkflowError> for RuntimeError

fn from(source: WorkflowError) -> Self

Converts to this type from the input type.