Module model 

Execution history events and the state derived from them.

The event history is authoritative (RFC-0001 §9.8): ExecutionState is always the left fold of apply over an execution’s events, so a runtime restart reconstructs exactly the state that was committed.

Modules

codes

Runtime-generated error codes.

Structs

ExecutionState

HistoryEvent

A recorded event with its position and commit time.

ParentRef

Link from a child execution to the parent unit that started it.

TaskError

Structured task error, as reported by a worker or produced by the runtime.

UnitKey

A unit key decomposed: [compensate:]step[[index]].

UnitState

One schedulable unit: a workflow step, or the compensation of a step (key compensate:<step>).

Enums

AbortReason

Why a running workflow is being wound down.

CompensationOutcome

Event

UnitStatus

WorkflowStatus

Functions

apply

Apply one event. Pure and total: unknown combinations are ignored so that replaying an older history never panics.

compensation_key

element_key

Unit key of element i of a for step.

parse_key