private static State FindStartState(Machine machine, ITranslationErrorHandler handler)
{
bool foundStartState = false;
foreach (State state in machine.AllStates())
{
if (state == machine.StartState || state.IsStart)
{
if (!foundStartState)
{
foundStartState = true;
}
else
{
throw handler.TwoStartStates(machine, state);
}
}
}
Debug.Assert(!(foundStartState && machine.StartState == null), "machine has unregistered start state");
if (!foundStartState || machine.StartState == null)
{
throw handler.MissingStartState(machine);
}
return(machine.StartState);
}