- // as the size method is recursive, we keep track of nodes for which
- // we already have computed size so that we don't count them twice.
- // In a first approximation, we assume that the structure selection
- // keep the nodes ordered.
- // TODO : enhance that.
+ // TODO enhance this: as the size method is recursive, we keep track
+ // of nodes for which we already have computed size so that we don't
+ // count them twice. In a first approximation, we assume that the
+ // structure selection keep the nodes ordered.