func transitionToStopped()

in MobiusCore/Source/AsyncStartStopStateMachine.swift [108:125]

• 18 lines of code
• 4 McCabe index (conditional complexity)

    func transitionToStopped(by transition: (RunningState) throws -> StoppedState) throws {
        dispatchPrecondition(condition: .notOnQueue(queue))
        try queue.sync {
            switch snapshot() {
            case .stopped:
            throw Error.wrongState
            case .running(let runningState):
                rawState.value = .transitioningToStopped
                do {
                    let stoppedState = try transition(runningState)
                    become(stopped: stoppedState)
                } catch {
                    rawState.value = .running
                    throw error
                }
            }
        }
    }