1 package jrre.instructionset.objects;
2
3 import jrre.*;
4 import jrre.types.*;
5 import jrre.classloader.classfile.pool_entries.*;
6
7 public class New extends jrre.instructionset.Instruction {
8
9 private int operandOne;
10 private int operandTwo;
11
12 public New(int operandOne, int operandTwo){
13
14 name = "new";
15 description = "foo foo moo poo";
16 length = 2;
17
18 this.operandOne = operandOne;
19 this.operandTwo = operandTwo;
20 }
21
22 /***
23 * Executes the <strong><code>new</code></strong> instruction.
24 *
25 */
26 public void execute(){
27
28 // Get this class.
29 jrre.api.java.lang.Class thisClass = Stack.getClassContainingMethod();
30
31 int cpClassIndex = (operandOne << 8) | operandTwo;
32
33 CPClass classRef = (CPClass)thisClass.getSymbol(cpClassIndex);
34 String className = ((CPUTF8)thisClass.getSymbol(classRef.getNameIndex())).getValue();
35
36 //System.out.println("new: "+className);
37
38 jrre.api.java.lang.Class classToNew = MethodArea.getClass(className);
39 if(classToNew == null){
40 return;
41 }
42
43 ObjectInstance newObject = classToNew.instanceOf();
44
45 String key = className;
46 ObjectArea.addObject(key, newObject);
47
48 Stack.pushOperand(new ReferenceType(newObject));
49
50 }
51
52 public String toString(){
53 StringBuffer toReturn = new StringBuffer();
54 toReturn.append("new ");
55 toReturn.append(Integer.toHexString(operandOne));
56 toReturn.append(" ");
57 toReturn.append(Integer.toHexString(operandTwo));
58 return toReturn.toString();
59 }
60 }
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