// effects: Given a boolean expression, modifies requiredSlots
// to indicate which slots are required to generate the expression
// projectedSlotMap indicates a mapping from member paths to slot
// numbers (that need to be checked off in requiredSlots)
internal virtual void GetRequiredSlots(MemberProjectionIndex projectedSlotMap, bool[] requiredSlots)
{
RequiredSlotsVisitor.GetRequiredSlots(m_tree, projectedSlotMap, requiredSlots);
}
