Subj : Re: Rhino problem with overloaded functions
To   : netscape.public.mozilla.jseng
From : ben_curren@intuit.com (Ben)
Date : Thu Feb 26 2004 09:08 am

mesuti@aciworldwide.com wrote in message news:<mailman.1077793621.16637.mozilla-jseng@mozilla.org>...
> Hi,
> 
> Thank you very much  Igor. With your help is my previous problem is solved.
> 
> I've now the following problem (the last one I home).
> 
> I've a host object which contains two toString() methods (e.g. toString()
> and toString(Integer encoding)). My JavaScript calls the "toString(Integer
> enc)" but Rhino calls always the last one. The code of Host object looks
> likes:
> 
> 
> 
> public class ByteString extends ScriptableObject {
> 
> 
>     /** Creates a new instance of ByteString */
>     public ByteString() {
>     }
> 
>     public void jsConstructor(String s, Integer enc) {
>     }
> 
>     public int jsGet_length() {
>     }
> 
>     public ByteString jsFunction_concat(ByteString bs) {
>     }
> 
>     public boolean jsFunction_equals(ByteString bs) {
>     }
> 
>     public String jsFunction_toString(Integer enc) {
>        return new String("test-1");
>     }
> 
>     public String jsFunction_toString() {
>        return new String("test-2");
>     }
> 

replace the two methods with this:

public static Object jsFunction_toString(Context cx, Scriptable
thisObj, Object[] args, Function funObj) {
   String string = null;
   if (args.length == 0 || args[0] == Context.getUndefinedValue()) {
      string = "test-2";
   } else if (args.length == 1) {
      string = "test-1";
   }
   return string;
}

>     public String getClassName() {
>         return "ByteString";
>     }
>  
> }
> 
> 
> The following JavaScript is executed by Rhino:
> 
> var tmpA = new ByteString("Ishak ", ASCII);
> var tmpB = new ByteString("Mesut", ASCII);
> var tmpC = tmpA.concat(tmpB);
> var tmpD = tmpC.concat(tmpA);
> var tmpE = new ByteString("Ishak Mesut", ASCII);
> 
> 
> if (tmpE.equals(tmpC)) {
>     data.de_boolean_str = "TRUE";
> }
> else {
>     data.de_boolean_str = "FALSE";
> }
> 
> data.de_int = tmpD.length;
> data.output = tmpD;
> data.de_str = tmpD.toString(ASCII);
> 
> //End of Java Script
> 
> 
> the outcome of data.de_str variable bocomes "test-2" instead of "test-1".
> 
> The Host Object 'ByteString' and constant integer ASCII is added to the
> scope as follows:
> 
> Scriptable jsArgs = cx.toObject(new Integer(Constant.ASCII), scope);
> scope.put("ASCII", scope, jsArgs);
> 
> ScriptableObject.defineClass(scope, ByteString.class);
> 
> 
> Any helps is appreciated,
> Thanks in advence,
> Ishak Mesut

.