/// <summary>
/// Get the first declared function of this undecorated name.
/// </summary>
/// <param name="scope"></param>
/// <param name="nameSpace"></param>
/// <param name="functionName"></param>
/// <returns></returns>
public static QsFunction GetFirstDeclaredFunction(
QsScope scope,
string nameSpace,
string functionName)
{
IEnumerable <KeyValuePair <string, object> > Items = null;
if (!string.IsNullOrEmpty(nameSpace))
{
var ns = QsNamespace.GetNamespace(scope, nameSpace);
Items = ns.GetItems();
}
else
{
Items = scope.GetItems();
}
var func_Pass1 = from item in Items
where item.Value is QsFunction
select(QsFunction) item.Value;
var qf = from fun in func_Pass1
where fun.FunctionName.Equals(functionName, StringComparison.OrdinalIgnoreCase)
select fun;
return(qf.ElementAtOrDefault(0));
}
/// <summary>
///
/// </summary>
/// <param name="scope"></param>
/// <param name="nameSpace"></param>
/// <param name="parametersCount">filter functions by number of parameters</param>
/// <param name="parametersNames"></param>
/// <returns></returns>
public static QsFunction[] FindFunctionByParameters(
QsScope scope,
string qsNamespace,
string functionName,
int parametersCount,
params string[] parametersNames)
{
IEnumerable <KeyValuePair <string, object> > Items = null;
if (!string.IsNullOrEmpty(qsNamespace))
{
var ns = QsNamespace.GetNamespace(scope, qsNamespace);
Items = ns.GetItems();
}
else
{
Items = scope.GetItems();
}
var func_Pass1 = from item in Items
where item.Value is QsFunction
select(QsFunction) item.Value;
var func_Pass2 = from func in func_Pass1
where func.ContainsParameters(parametersNames) && func.Parameters.Length == parametersCount
select func;
var func_Pass3 = from fc in func_Pass2
where fc.FunctionName.Equals(functionName, StringComparison.OrdinalIgnoreCase)
select fc;
return(func_Pass3.ToArray());
}
/// <summary>
/// Get the function that is stored in the scope.
/// </summary>
/// <param name="scope"></param>
/// <param name="realName"></param>
/// <returns></returns>
public static QsFunction GetFunction(QsScope scope, string qsNamespace, string functionName)
{
if (string.IsNullOrEmpty(qsNamespace))
{
// no namespace included then it is from the local scope.
// I am adding the mathmatical functions in the root namespace
// so I will test for the function namespace and
QsFunction function = (QsFunction)MathNamespace.GetValueOrNull(functionName);
// built int math functions will be overwrite any other functions
if (function != null)
{
return(function);
}
else
{
function = (QsFunction)QsEvaluator.GetScopeValueOrNull(scope, qsNamespace, functionName);
}
return(function);
}
else
{
try
{
QsNamespace ns = QsNamespace.GetNamespace(scope, qsNamespace);
return((QsFunction)ns.GetValue(functionName));
}
catch (QsVariableNotFoundException)
{
return(null);
}
}
}