// PERFORM_MUTATION
//
public void performMutation(DataElement obj, int num)
{
logger.Debug("performMutation(num=" + num + ")");
Dom.Array objAsArray = (Dom.Array)obj;
//if (num == 0)
// return;
if (num < objAsArray.Count)
{
// remove some items
for (int i = objAsArray.Count - 1; i >= num; --i)
{
if (objAsArray[i] == null)
{
break;
}
objAsArray.RemoveAt(i);
}
}
else if (num > objAsArray.Count)
{
// add some items, but do it by replicating
// the last item over and over to save memory
objAsArray.ExpandTo(num);
}
}
// PERFORM_MUTATION
//
public void performMutation(DataElement obj, int num)
{
logger.Debug("performMutation(num=" + num + ")");
Dom.Array objAsArray = (Dom.Array)obj;
//if (num == 0)
// return;
if (num < objAsArray.Count)
{
// remove some items
for (int i = objAsArray.Count - 1; i >= num; --i)
{
if (objAsArray[i] == null)
{
break;
}
objAsArray.RemoveAt(i);
}
}
else if (num > objAsArray.Count)
{
try
{
// We are not actually going to make this array thousands of items long. Instead
// we are going to override the count and copy the last element many times simulating a
// very long array.
var elemValue = objAsArray[objAsArray.Count - 1].Value;
objAsArray.overrideCount = num;
var newValue = new BitStream();
newValue.Write(elemValue);
for (int i = objAsArray.Count; i < num; i++)
{
newValue.Write(elemValue);
}
objAsArray[objAsArray.Count - 1].MutatedValue = new Variant(newValue);
objAsArray[objAsArray.Count - 1].mutationFlags = DataElement.MUTATE_DEFAULT | DataElement.MUTATE_OVERRIDE_TYPE_TRANSFORM;
}
catch (Exception ex)
{
logger.Error("Eating exception: " + ex.ToString());
//throw new OutOfMemoryException("ArrayNumericalEdgeCasesMutator -- Out of memory", ex);
}
}
}