Enum TerminationReason 

#[repr(u8)]
pub enum TerminationReason {
    UnhandledError = 0,
    InvocationError = 1,
    ExecutionError = 2,
    CheckpointFailed = 3,
    NonDeterministicExecution = 4,
    StepInterrupted = 5,
    CallbackError = 6,
    SerializationError = 7,
    SizeLimitExceeded = 8,
    OperationTerminated = 9,
    RetryScheduled = 10,
    WaitScheduled = 11,
    CallbackPending = 12,
    ContextValidationError = 13,
    LambdaTimeoutApproaching = 14,
}

Reason for execution termination.

This enum uses #[repr(u8)] for compact memory representation (1 byte). Explicit discriminant values ensure stability across versions.

Variants

UnhandledError = 0

Unhandled error in user code

InvocationError = 1

Error during Lambda invocation

ExecutionError = 2

Explicit execution error

CheckpointFailed = 3

Checkpoint operation failed

NonDeterministicExecution = 4

Non-deterministic execution detected

StepInterrupted = 5

Step was interrupted

CallbackError = 6

Callback operation failed

SerializationError = 7

Serialization/deserialization failed

SizeLimitExceeded = 8

Size limit exceeded (payload, response, or history)

OperationTerminated = 9

Operation was explicitly terminated

RetryScheduled = 10

A retry has been scheduled; execution will resume

WaitScheduled = 11

A wait operation has been scheduled

CallbackPending = 12

A callback is pending external completion

ContextValidationError = 13

Context validation failed

LambdaTimeoutApproaching = 14

Lambda timeout approaching — graceful shutdown

Trait Implementations

impl Clone for TerminationReason

fn clone(&self) -> TerminationReason

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TerminationReason

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

Formats the value using the given formatter.

impl Default for TerminationReason

fn default() -> TerminationReason

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TerminationReason

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TerminationReason

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TerminationReason

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TerminationReason

impl Eq for TerminationReason

impl StructuralPartialEq for TerminationReason