plobject.java

pl0编译器的java版本

// Class for Name Table Structure

public class PLobject {
    
    public static final int constant = 0;
    public static final int variable = 1;
    public static final int PLprocedure = 2;

    public String name;
    public int kind;
    public int val;
    public int level, adr;

    //for const
    PLobject(String s, int k) {
    	name = s;
    	kind = k;
    }

    //for var
    PLobject(String s, int k, int v) {
	    this(s, k);
	    val = v;
    }

    //for procedure
    PLobject(String s, int k, int l, int a) {
	    this(s, k);
	    level = l;
	    adr = a;
    }
}