public static Variable ExtractArrayElement(Variable array,
List <Variable> indices)
{
Variable currLevel = array;
for (int i = 0; i < indices.Count; i++)
{
Variable index = indices [i];
int arrayIndex = currLevel.GetArrayIndex(index);
int tupleSize = currLevel.Tuple != null ? currLevel.Tuple.Count : 0;
if (arrayIndex < 0 || arrayIndex >= tupleSize)
{
throw new ArgumentException("Unknown index [" + index.AsString() +
"] for tuple of size " + tupleSize);
}
currLevel = currLevel.Tuple [arrayIndex];
}
return(currLevel);
}
public static Variable ExtractArrayElement(Variable array,
List <Variable> indices,
ParsingScript script)
{
Variable currLevel = array;
for (int i = 0; i < indices.Count; i++)
{
Variable index = indices[i];
int arrayIndex = currLevel.GetArrayIndex(index);
int tupleSize = currLevel.Tuple != null ? currLevel.Tuple.Count : 0;
if (arrayIndex < 0 || arrayIndex >= tupleSize)
{
ThrowErrorMsg("Unknown index [" + index.AsString() +
"] for tuple of size " + tupleSize, script, index.AsString());
}
currLevel = currLevel.Tuple[arrayIndex];
}
return(currLevel);
}
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);
}
