private Event InitiateValue(Event context)
{
if (InitialValue != null)
{
this.marking.value = InitialValue.Eval(context);
InitialValue = null;
}
return(this);
}
public DataSet ValidInputs()
{
if (type == null)
{
return(null);
}
else
{
return((DataSet)type.Eval(this));
}
}
//public override string Symbol => "!";
public override DataType Eval(Event context)
{
var c = child.Eval(context);
var ct = c.GetType();
if (ct == typeof(BoolType))
{
var cc = (BoolType)c;
return(new BoolType(!cc.value));
}
else
{
throw new NotImplementedException("NegOp on non-boolean.");
}
}
public override DataType Eval(Event context)
{
var c = child.Eval(context);
if (!(c.GetType() == typeof(EventSet)))
{
throw new Exception("Value of not an event set.");
}
EventSet s = (EventSet)c;
if (s.value.Count < 1)
{
throw new Exception("Value of non-existent event.");
}
if (s.value.Count > 1)
{
var result = new HashSet <DataType>();
foreach (Event e in s.value)
{
if (e.marking.value == null)
{
result.Add(new Unit());
}
else
{
result.Add(e.marking.value);
}
}
return(new DataSet(result));
}
else
{
if (s.value.ElementAt(0).marking.value == null)
{
return(new Unit());
}
else
{
return(s.value.ElementAt(0).marking.value);
}
}
}
public override DataType Eval(Event context)
{
var c = child.Eval(context);
if (!(c.GetType() == typeof(EventSet)))
{
throw new Exception("IsPending of not an event set.");
}
EventSet s = (EventSet)c;
if (s.value.Count > 1)
{
throw new Exception("IsPending of multiple events.");
}
if (s.value.ElementAt(0).marking == null)
{
return(new Unit());
}
else
{
return(new BoolType(s.value.ElementAt(0).marking.pending));
}
}