/* Performs unboxing of value
* (corresponds to CILPE.CFG.UnboxValue class)
*/
public void Perform_UnboxValue(Type type, out Exception exc)
{
exc = null;
Value val = Pop();
if (val is NullValue)
{
exc = new NullReferenceException();
}
else if (!(val is ObjectReferenceValue))
{
throw new InvalidOperandException();
}
if (exc == null)
{
object obj = (val as ObjectReferenceValue).Obj;
Type objType = obj.GetType();
if (objType.IsEnum)
{
objType = StructValue.getEnumType(objType);
}
if (objType != type)
{
exc = new InvalidCastException();
}
else
{
push(new PointerToUnboxedValue(obj));
}
}
}
