if j, ok := tileOrder[p]; ok {
				if k == 0 {
					indexTileOrder[i] = j
				}
				break
			}
		}

		// Walk back down recording child tiles after parents.
		// This loop ends by revisiting the tile for this index
		// (tileParent(tile, 0, r.tree.N)) unless k == 0, in which
		// case the previous loop did it.
		for k--; k >= 0; k-- {
			p := tileParent(tile, k, r.tree.N)
			if p.W != 1<<uint(p.H) {

            return singleStrictVersionConstraints;
        }
    }

    void collectEndorsedStrictVersions(List<EdgeState> dependencies) {
        if (endorsesStrictVersionsFrom != null) {
            // we are revisiting this node
            endorsesStrictVersionsFrom.clear();
        }
        for (EdgeState edgeState : dependencies) {

    // ever add n's consumers to should_revisit, we won't "miss" an addition to
    // should_revisit.
    if (should_revisit[n->id()]) {
      VLOG(4) << "Revisiting " << n->name();
      TF_RETURN_IF_ERROR(HandleNode(n, &should_revisit));
    }
  }

  // Check if the optimistic analysis converges.  Specifically, check whether

/**
 * Ways to continue visiting a snapshot hierarchy after an entry has been visited.
 *
 * @see java.nio.file.FileVisitResult
 */
public enum SnapshotVisitResult {

    /**
     * Continue visiting. When returned after visiting a directory,
     * the entries in the directory will be visited next.
     */
    CONTINUE,

    /**
     * Terminate visiting immediately.
     */
    TERMINATE,

        }
    }

    private static void checkForCyclesFor(TaskInternal task, Set<TaskInternal> visited, Set<TaskInternal> visiting) {
        if (visited.contains(task)) {
            // Already checked
            return;
        }
        if (!visiting.add(task)) {
            // Visiting dependencies -> have found a cycle

		if len(name) == 0 {
			// continue visiting
			return true
		}
		// delegate to visitor
		return visitor(name)
	}
}

// VisitContainers invokes the visitor function with a pointer to every container
// spec in the given pod spec with type set in mask. If visitor returns false,
// visiting is short-circuited. VisitContainers returns true if visiting completes,
// false if visiting was short-circuited.

                cycle.removeLast();
                stateMap.put(v, DfsState.VISITED);
            } else if (state == DfsState.VISITING) {
                // we are already visiting this vertex, this mean we have a cycle
                int pos = cycle.lastIndexOf(v.label);
                List<String> ret = cycle.subList(pos, cycle.size());
                ret.add(v.label);
                return ret;
            }
        }

    /**
     * Called when starting to visit a file collection. Can return true to continue with visiting or false to skip this collection and its contents.
     *
     * <p>When a file collection represents a container of file collections, the children of the file collection are visited in order. Visiting a child works in the

                    stateMap.put(v, DfsState.VISITED);
                } else if (state == DfsState.VISITING) {
                    // we are already visiting this vertex, this mean we have a cycle
                    int pos = cycle.lastIndexOf(v);
                    List<String> ret = cycle.subList(pos, cycle.size());
                    ret.add(v);
                    return ret;
                }
            }
        }

                cycle.removeLast();
                stateMap.put(v, DfsState.VISITED);
            } else if (state == DfsState.VISITING) {
                // we are already visiting this vertex, this mean we have a cycle
                int pos = cycle.lastIndexOf(v.label);
                List<String> ret = cycle.subList(pos, cycle.size());
                ret.add(v.label);
                return ret;
            }
        }