binop.java

来自「编译原理大作业---tiger编译器 包括semant,translate,m」· Java 代码 · 共 20 行

package Tree;
//import Temp.Temp;
//import Temp.Label;

public class BINOP extends Exp {
   public int binop;
   public Exp left, right;
   public BINOP(int b, Exp l, Exp r) {
      binop = b;
      left = l;
      right = r;
   }
   public final static int PLUS=0, MINUS=1, MUL=2, DIV=3,
                           AND=4,OR=5,LSHIFT=6,RSHIFT=7,ARSHIFT=8,XOR=9;
   public ExpList kids() { return new ExpList(left, new ExpList(right,null)); }
   public Exp build(ExpList kids) {
      return new BINOP(binop,kids.head,kids.tail.head);
   }
}