// combine line
if (p.toCombine != null) {
adjustContentIdent() ;
mStream.print("Combine : ") ;
p.toCombine.visit(new EvalSpecTreePrinter(mStream));
mStream.println() ;
}
// reduce line
if (p.toReduce != null) {
adjustContentIdent() ;
mStream.print("Reduce : ") ;
p.toReduce.visit(new EvalSpecTreePrinter(mStream));
mStream.println() ;
}
// grouping line
if (p.groupFuncs != null) {