/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, version 2 of the License.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.vm4brwsr;

 import org.apidesign.bck2brwsr.core.JavaScriptBody;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public class Instance {

     private int in;

     protected short s;

     public double d;

     private float f;

     protected byte b = (byte)31;

     private Instance() {

     }

     public Instance(int i, double d) {

         this.in = i;

         this.d = d;

     }

     public byte getByte() {

         return b;

     }

     public void setByte(byte b) {

         this.b = b;

     }

     public static double defaultDblValue() {

         Instance create = new Instance();

         return create.d;

     }

     public static byte assignedByteValue() {

         return new Instance().b;

     }

     public static double magicOne() {

         Instance i = new Instance(10, 3.3d);

         i.b = (byte)0x09;

         return (i.in - i.b) * i.d;

     }

     public static int virtualBytes() {

         Instance i = new InstanceSub(7, 2.2d);

         i.setByte((byte)0x0a);

         Instance i2 = new Instance(3, 333.0d);

         i2.setByte((byte)44);

         return i.getByte() + i2.getByte();

     }

     public static float interfaceBytes() {

         GetByte i = new InstanceSub(7, 2.2d);

         return i.getByte();

     }

     public static boolean instanceOf(int sub) {

         Instance i = createInstance(sub);

         return isInstanceSubOf(i);

     }

     public static int castsWork(boolean interfc) {

         Instance i = createInstance(2);

         if (interfc) {

             GetByte b = (GetByte)i;

         } else {

             InstanceSub s = (InstanceSub)i;

         }

         return 5;

     }

     private static boolean isInstanceSubOf(Instance instance) {

         return instance instanceof InstanceSub;

     }

     private static Instance createInstance(int type) {

         switch (type) {

             case 0: return null;

             case 1: return new Instance();

             case 2: return new InstanceSub(3, 0);

         }

         throw new IllegalArgumentException();

     }

     private static boolean isNull() {

         return createInstance(2) == null;

     }

     @JavaScriptBody(args = "obj", body = "return obj.constructor;")

     static Object constructor(Object obj) {

         return obj;

     }

     public static boolean sharedConstructor() {

         class X {

         }

         X x1 = new X();

         X x2 = new X();

         return constructor(x1) == constructor(x2);

     }

     public static boolean differentConstructor() {

         class X {

         }

         class Y {

         }

         X x = new X();

         Y y = new Y();

         return constructor(x) == constructor(y);

     }

     @JavaScriptBody(args = {}, body = "return {};")

     private static Object jsObj() {

         return null;

     }

     public static boolean iofObject() {

         return jsObj() instanceof Object;

     }

     public static int jscall() {

         return jsgetbytes(new Instance());

     }

     @JavaScriptBody(args = { "instance" }, body = "return instance.getByte__B();")

     private static native int jsgetbytes(Instance instance);

 }