561   Subtree S1;  member in clang::diff::ZhangShashaMatcher
568       : DiffImpl(DiffImpl), S1(T1, Id1), S2(T2, Id2) {  in ZhangShashaMatcher()
570         size_t(S1.getSize()) + 1);  in ZhangShashaMatcher()
572         size_t(S1.getSize()) + 1);  in ZhangShashaMatcher()
573     for (int I = 0, E = S1.getSize() + 1; I < E; ++I) {  in ZhangShashaMatcher()
587     TreePairs.emplace_back(SNodeId(S1.getSize()), SNodeId(S2.getSize()));  in getMatchingNodes()
600       FirstRow = S1.getLeftMostDescendant(LastRow);  in getMatchingNodes()
614           SNodeId LMD1 = S1.getLeftMostDescendant(Row);  in getMatchingNodes()
616           if (LMD1 == S1.getLeftMostDescendant(LastRow) &&  in getMatchingNodes()
618             NodeId Id1 = S1.getIdInRoot(Row);  in getMatchingNodes()
646     if (!DiffImpl.isMatchingPossible(S1.getIdInRoot(Id1), S2.getIdInRoot(Id2)))  in getUpdateCost()
648     return S1.getNodeValue(Id1) != S2.getNodeValue(Id2);  in getUpdateCost()
652     for (SNodeId Id1 : S1.KeyRoots)  in computeTreeDist()
659     SNodeId LMD1 = S1.getLeftMostDescendant(Id1);  in computeForestDist()
667         SNodeId DLMD1 = S1.getLeftMostDescendant(D1);  in computeForestDist()