jaroslav@24: /**
jaroslav@106:  * Back 2 Browser Bytecode Translator
jaroslav@106:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@24:  *
jaroslav@24:  * This program is free software: you can redistribute it and/or modify
jaroslav@24:  * it under the terms of the GNU General Public License as published by
jaroslav@24:  * the Free Software Foundation, version 2 of the License.
jaroslav@24:  *
jaroslav@24:  * This program is distributed in the hope that it will be useful,
jaroslav@24:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@24:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@24:  * GNU General Public License for more details.
jaroslav@24:  *
jaroslav@24:  * You should have received a copy of the GNU General Public License
jaroslav@24:  * along with this program. Look for COPYING file in the top folder.
jaroslav@24:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@8:  */
jaroslav@22: package org.apidesign.vm4brwsr;
jaroslav@8: 
jaroslav@8: /**
jaroslav@8:  *
jaroslav@8:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@8:  */
jaroslav@8: public class Instance {
jaroslav@8:     private int i;
jaroslav@8:     protected short s;
jaroslav@8:     public double d;
jaroslav@8:     private float f;
jaroslav@10:     protected byte b = (byte)31;
jaroslav@10:     
jaroslav@10:     private Instance() {
jaroslav@10:     }
jaroslav@8: 
jaroslav@8:     public Instance(int i, double d) {
jaroslav@8:         this.i = i;
jaroslav@8:         this.d = d;
jaroslav@8:     }
jaroslav@8:     public byte getByte() {
jaroslav@8:         return b;
jaroslav@8:     }
jaroslav@8:     
jaroslav@8:     public void setByte(byte b) {
jaroslav@8:         this.b = b;
jaroslav@8:     }
jaroslav@10:     public static double defaultDblValue() {
jaroslav@10:         Instance create = new Instance();
jaroslav@10:         return create.d;
jaroslav@10:     }
jaroslav@8:     
jaroslav@10:     public static byte assignedByteValue() {
jaroslav@10:         return new Instance().b;
jaroslav@10:     }
jaroslav@8:     public static double magicOne() {
jaroslav@8:         Instance i = new Instance(10, 3.3d);
jaroslav@10:         i.b = (byte)0x09;
jaroslav@10:         return (i.i - i.b) * i.d;
jaroslav@8:     }
jaroslav@14:     public static int virtualBytes() {
jaroslav@13:         Instance i = new InstanceSub(7, 2.2d);
jaroslav@12:         i.setByte((byte)0x0a);
jaroslav@14:         Instance i2 = new Instance(3, 333.0d);
jaroslav@14:         i2.setByte((byte)44);
jaroslav@14:         return i.getByte() + i2.getByte();
jaroslav@12:     }
jaroslav@15:     public static float interfaceBytes() {
jaroslav@15:         GetByte i = new InstanceSub(7, 2.2d);
jaroslav@15:         return i.getByte();
jaroslav@15:     }
jaroslav@16:     public static boolean instanceOf(boolean sub) {
jaroslav@16:         Instance i = createInstance(sub);
jaroslav@16:         return isInstanceSubOf(i);
jaroslav@16:     }
jaroslav@30:     public static int castsWork(boolean interfc) {
jaroslav@30:         Instance i = createInstance(true);
jaroslav@30:         if (interfc) {
jaroslav@30:             GetByte b = (GetByte)i;
jaroslav@30:         } else {
jaroslav@30:             InstanceSub s = (InstanceSub)i;
jaroslav@30:         }
jaroslav@30:         return 5;
jaroslav@30:     }
jaroslav@30:     
jaroslav@16:     private static boolean isInstanceSubOf(Instance instance) {
jaroslav@16:         return instance instanceof InstanceSub;
jaroslav@16:     }
jaroslav@16:     private static Instance createInstance(boolean sub) {
jaroslav@16:         return sub ? new InstanceSub(3, 0) : new Instance();
jaroslav@16:     }
jaroslav@16:     private static boolean isNull() {
jaroslav@16:         return createInstance(true) == null;
jaroslav@16:     }
jaroslav@8: }