import java.util.Vector;
public class FlatNode {
- protected Vector next;
- protected Vector prev;
-
- public FlatNode() {
- next=new Vector();
- prev=new Vector();
- }
-
- public String toString() {
- throw new Error(this.getClass().getName() + "does not implement toString!");
- }
- public int numNext() {
- return next.size();
- }
- public FlatNode getNext(int i) {
- return (FlatNode) next.get(i);
- }
-
- public int numPrev() {
- return prev.size();
- }
- public FlatNode getPrev(int i) {
- return (FlatNode) prev.get(i);
- }
-
- public void addNext(FlatNode n) {
- next.add(n);
- n.addPrev(this);
- }
-
- /** This function modifies the graph */
- public void setNext(int i, FlatNode n) {
- FlatNode old=getNext(i);
- next.set(i, n);
- old.prev.remove(this);
- n.addPrev(this);
- }
-
- protected void addPrev(FlatNode p) {
- prev.add(p);
- }
- public int kind() {
- throw new Error();
- }
-
- public TempDescriptor [] readsTemps() {
- return new TempDescriptor[0];
- }
-
- public TempDescriptor [] writesTemps() {
- return new TempDescriptor[0];
- }
+ protected Vector next;
+ protected Vector prev;
+
+ public FlatNode() {
+ next=new Vector();
+ prev=new Vector();
+ }
+
+ public String toString() {
+ throw new Error(this.getClass().getName() + "does not implement toString!");
+ }
+ public int numNext() {
+ return next.size();
+ }
+ public FlatNode getNext(int i) {
+ return (FlatNode) next.get(i);
+ }
+
+ public int numPrev() {
+ return prev.size();
+ }
+ public FlatNode getPrev(int i) {
+ return (FlatNode) prev.get(i);
+ }
+
+ public void addNext(FlatNode n) {
+ next.add(n);
+ n.addPrev(this);
+ }
+
+ /** This function modifies the graph */
+ public void setNext(int i, FlatNode n) {
+ FlatNode old=getNext(i);
+ next.set(i, n);
+ old.prev.remove(this);
+ n.addPrev(this);
+ }
+
+ protected void addPrev(FlatNode p) {
+ prev.add(p);
+ }
+ public int kind() {
+ throw new Error();
+ }
+
+ public TempDescriptor [] readsTemps() {
+ return new TempDescriptor[0];
+ }
+
+ public TempDescriptor [] writesTemps() {
+ return new TempDescriptor[0];
+ }
}