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 package org.apidesign.javap;

 import org.apidesign.bck2brwsr.core.JavaScriptBody;

 /** A JavaScript optimized replacement for Hashtable.

  *

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

  */

 final class Hashtable {

     private Object[] keys;

     private Object[] values;

     Hashtable(int i) {

         this();

     }

     Hashtable(int i, double d) {

         this();

     }

     Hashtable() {

     }

     @JavaScriptBody(args = { "self", "key", "val" }, body = 

         "self[key] = val;"

     )

     synchronized void put(Object key, Object val) {

         int[] where = { -1, -1 };

         Object found = get(key, where);

         if (where[0] != -1) {

             // key exists

             values[where[0]] = val;

         } else {

             if (where[1] != -1) {

                 // null found

                 keys[where[1]] = key;

                 values[where[1]] = val;

             } else {

                 if (keys == null) {

                     keys = new Object[11];

                     values = new Object[11];

                     keys[0] = key;

                     values[0] = val;

                 } else {

                     Object[] newKeys = new Object[keys.length * 2];

                     Object[] newValues = new Object[values.length * 2];

                     for (int i = 0; i < keys.length; i++) {

                         newKeys[i] = keys[i];

                         newValues[i] = values[i];

                     }

                     newKeys[keys.length] = key;

                     newValues[keys.length] = val;

                     keys = newKeys;

                     values = newValues;

                 }

             }

         }

     }

     @JavaScriptBody(args = {"self", "key" }, body = 

         "var r = self[key]; return r ? r : null;"

     )

     Object get(Object key) {

         return get(key, null);

     }

     private synchronized Object get(Object key, int[] foundAndNull) {

         if (keys == null) {

             return null;

         }

         for (int i = 0; i < keys.length; i++) {

             if (keys[i] == null) {

                 if (foundAndNull != null) {

                     foundAndNull[1] = i;

                 }

             } else if (keys[i].equals(key)) {

                 if (foundAndNull != null) {

                     foundAndNull[0] = i;

                 }

                 return values[i];

             }

         }

         return null;

     }

 }