private static int ExtendArrayHelper(Variable parent, Variable indexVar)
{
parent.SetAsArray();
int arrayIndex = parent.GetArrayIndex(indexVar);
if (arrayIndex < 0)
{
// This is not a "normal index" but a new string for the dictionary.
string hash = indexVar.AsString();
arrayIndex = parent.SetHashVariable(hash, Variable.NewEmpty());
return(arrayIndex);
}
if (parent.Tuple.Count <= arrayIndex)
{
for (int i = parent.Tuple.Count; i <= arrayIndex; i++)
{
parent.Tuple.Add(Variable.NewEmpty());
}
}
return(arrayIndex);
}