protected RCBlock RecursiveWhere(RCBlock left, RCBlock right)
{
if (left.Count != right.Count)
{
throw new Exception(string.Format(
"Left count was {0} but right count was {1}. Counts must match",
left.Count,
right.Count));
}
RCBlock result = RCBlock.Empty;
for (int i = 0; i < left.Count; ++i)
{
RCBlock leftName = left.GetName(i);
RCValue rightValue = right.Get(i);
if (rightValue is RCBlock)
{
RCBlock rightBlock = (RCBlock)rightValue;
RCBlock leftBlock = left.GetBlock(i);
RCBlock childResult = RecursiveWhere(leftBlock, rightBlock);
if (childResult.Count > 0)
{
result = new RCBlock(result, leftName.Name, leftName.Evaluator, childResult);
}
}
else if (rightValue is RCBoolean)
{
if (rightValue.Count == 1)
{
if (right.GetBoolean(i))
{
result = new RCBlock(result, leftName.Name, ":", leftName.Value);
}
}
else
{
RCBoolean rightVector = (RCBoolean)rightValue;
RCBlock leftBlock = left.GetBlock(i);
RCBlock childResult = RCBlock.Empty;
for (int j = 0; j < rightVector.Count; ++j)
{
RCBlock leftVar = leftBlock.GetName(j);
if (rightVector[j])
{
childResult = new RCBlock(childResult, leftVar.Name, ":", leftVar.Value);
}
}
if (childResult.Count > 0)
{
result = new RCBlock(result, leftName.Name, leftName.Evaluator, childResult);
}
}
}
}
return(result);
}