id.java

来自「A compiler for a subset of the Java lang」· Java 代码 · 共 34 行

package inter;
import lexer.*; import symbols.*;

public class Id extends Expr {

	public int offset;     // relative address
	
	public Id(Word id, Type p, int b)
	{
		super(id, p);
		offset = b;
		lvaIdx = LocalVarArray.curlength;
		LocalVarArray.curlength += type.width;			   
	}

//	public String toString() {return "" + op.toString() + offset;}
	   public String toString() {
		   String s = "";
		   if(type == Type.Int)
		   {
			   return "iload " + lvaIdx + "\n";
		   }
		   else if(type == Type.Float)
		   {
			   return "fload " + lvaIdx + "\n";   
		   }
		   else if(type == Type.Complex)
		   {
			   return "fload " + lvaIdx + "\n" + "fload " + (lvaIdx + 4) + "\n";		   
		   }
		   return null;
	   }
}