node.java

23种设计模式JAVA实现,很好很有用的东西.

package inter;
import lexer.*;

public class Node {

   int lexline = 0;

   Node() { lexline = Lexer.line; }

   void error(String s) { throw new Error("near line "+lexline+": "+s); }

   static int labels = 0;

   public int newlabel() { return ++labels; }

   public void emitlabel(int i) { System.out.print("L" + i + ":"); }

   public void emit(String s) { System.out.println("\t" + s); }
}