/**

  * 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 java.io.ByteArrayInputStream;

 import java.io.IOException;

 import org.apidesign.bck2brwsr.core.JavaScriptBody;

 /**

  *

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

  */

 class VMLazy extends ByteCodeToJavaScript {

     private final Object vm;

     private final Object global;

     private VMLazy(Object global, Object vm, Appendable out) {

         super(out);

         this.vm = vm;

         this.global = global;

     }

     static String toJavaScript(Object global, Object vm, byte[] is) throws IOException {

         StringBuilder sb = new StringBuilder();

         new VMLazy(global, vm, sb).compile(new ByteArrayInputStream(is));

         return sb.toString().toString();

     }

     @JavaScriptBody(args = { "self", "n" }, 

         body=

           "var cls = n.replace__Ljava_lang_String_2CC(n,'/','_').toString();"

         + "var glb = self.fld_global;"

         + "var vm = self.fld_vm;"

         + "if (glb[cls]) return false;"

         + "glb[cls] = function() {"

         + "  return vm.loadClass(n,cls);"

         + "};"

         + "return true;"

     )

     @Override

     protected boolean requireReference(String internalClassName) {

         throw new UnsupportedOperationException();

     }

     @Override

     protected void requireScript(String resourcePath) {

     }

     @Override

     protected String assignClass(String className) {

         return "arguments[0][arguments[1]]=";

     }

 }