private static StateMachine?ReflectSM(IParseQueue q)
{
string method = q.Scan();
if (method == "file")
{
q.Advance();
return(StateMachineManager.FromName(q.Next()));
}
else if (method == "null")
{
q.Advance();
return(null);
}
else if (method == "stall")
{
q.Advance();
return(WaitForPhaseSM);
}
else
{
var line = q.GetLastLine();
try {
return(StateMachine.Create(q));
} catch (Exception ex) {
throw new SMException($"Nested StateMachine construction starting on line {line} failed.", ex);
}
}
}
public ReflCtx(IParseQueue q)
{
List <ParsingProperty> properties = new List <ParsingProperty>();
props = new ParsingProperties(new ParsingProperty[0]);
while (q.MaybeScan() == SMParser.PROP2_KW)
{
q.Advance();
properties.Add(q.NextChild().Into <ParsingProperty>());
if (!q.IsNewline)
{
throw new Exception(
$"Line {q.GetLastLine()} is missing a newline at the end of the the property declaration. Instead, it found \"{q.Scan()}\".");
}
}
props = new ParsingProperties(properties);
}
private static List <StateMachine> CreateChildren(Type?myType, IParseQueue q, int childCt = -1)
{
var children = new List <StateMachine>();
SMConstruction childType;
while (childCt-- != 0 && !q.Empty &&
(childType = CheckCreatableChild(myType, q.ScanNonProperty())) != SMConstruction.ILLEGAL)
{
StateMachine newsm = Create(q.NextChild(), childType);
if (!q.IsNewlineOrEmpty)
{
throw new Exception(
$"Line {q.GetLastLine()}: Expected a newline, but found \"{q.Print()}\".");
}
children.Add(newsm);
if (newsm is BreakSM)
{
break;
}
}
return(children);
}