54             case SkRegion::kDifference_Op:  in reduced_stack_walker()
76             case SkRegion::kIntersect_Op:  in reduced_stack_walker()
99             case SkRegion::kUnion_Op:  in reduced_stack_walker()
122             case SkRegion::kXOR_Op:  in reduced_stack_walker()
144             case SkRegion::kReverseDifference_Op:  in reduced_stack_walker()
168             case SkRegion::kReplace_Op:  in reduced_stack_walker()
207                 SkASSERT(SkRegion::kXOR_Op == element->getOp() ||  in reduced_stack_walker()
208                          SkRegion::kReverseDifference_Op == element->getOp());  in reduced_stack_walker()
211                                            (queryBounds, SkRegion::kReverseDifference_Op, false));  in reduced_stack_walker()
220                 bool isReplace = SkRegion::kReplace_Op == newElement->getOp();  in reduced_stack_walker()
222                     (SkRegion::kIntersect_Op == newElement->getOp() || isReplace)) {  in reduced_stack_walker()
224                     newElement->setOp(SkRegion::kDifference_Op);  in reduced_stack_walker()
242                 case SkRegion::kDifference_Op:  in reduced_stack_walker()
246                 case SkRegion::kIntersect_Op:  in reduced_stack_walker()
253                         element->setOp(SkRegion::kReplace_Op);  in reduced_stack_walker()
256                 case SkRegion::kUnion_Op:  in reduced_stack_walker()
262                         element->setOp(SkRegion::kReplace_Op);  in reduced_stack_walker()
265                 case SkRegion::kXOR_Op:  in reduced_stack_walker()
268                         element->setOp(SkRegion::kReplace_Op);  in reduced_stack_walker()
271                 case SkRegion::kReverseDifference_Op:  in reduced_stack_walker()
284                             element->setOp(SkRegion::kReplace_Op);  in reduced_stack_walker()
288                 case SkRegion::kReplace_Op:  in reduced_stack_walker()
389             SkNEW_INSERT_AT_LLIST_HEAD(result, Element, (isectRect, SkRegion::kReplace_Op, doAA));  in ReduceClipStack()