public String EvaluateEmpty(String Operand, EXEScope Scope)
{
String Result = null;
if (EXETypes.UnitializedName.Equals(Operand))
{
Result = EXETypes.BooleanTrue;
return(Result);
}
EXEReferencingVariable SingleInstanceVariable = Scope.FindReferencingVariableByName(Operand);
if (SingleInstanceVariable != null)
{
if (SingleInstanceVariable.IsInitialized())
{
Result = EXETypes.BooleanFalse;
}
else
{
Result = EXETypes.BooleanTrue;
}
return(Result);
}
EXEReferencingSetVariable MultiInstanceVariable = Scope.FindSetReferencingVariableByName(Operand);
if (MultiInstanceVariable != null)
{
if (MultiInstanceVariable.GetReferencingVariables().Any())
{
Result = EXETypes.BooleanFalse;
}
else
{
Result = EXETypes.BooleanTrue;
}
return(Result);
}
return(Result);
}
public String EvaluateCardinality(String Operand, EXEScope Scope)
{
String Result = null;
if (EXETypes.UnitializedName.Equals(Operand))
{
Result = "0";
return(Result);
}
EXEReferencingVariable SingleInstanceVariable = Scope.FindReferencingVariableByName(Operand);
if (SingleInstanceVariable != null)
{
if (SingleInstanceVariable.IsInitialized())
{
Result = "1";
}
else
{
Result = "0";
}
return(Result);
}
EXEReferencingSetVariable MultiInstanceVariable = Scope.FindSetReferencingVariableByName(Operand);
if (MultiInstanceVariable != null)
{
if (MultiInstanceVariable.GetReferencingVariables().Any())
{
Result = MultiInstanceVariable.GetReferencingVariables().Count.ToString();
}
else
{
Result = "0";
}
return(Result);
}
return(Result);
}
