package listFW.visitor;

import listFW.*;

/**
 * A test algorithm that works on a list of strings, 
 * combining the elements into a single String.
 */
public class MakePhrase implements IListAlgo<String, String, String> {
    public static MakePhrase Singleton = new MakePhrase();
    private MakePhrase() {}
    
    public String emptyCase(IMTList<? extends String> host, String ... inp) {
        return "";
    }
    public String nonEmptyCase(INEList<? extends String> host,  String ... inp) {
        return inp[0]+" "+host.getFirst()+" "+inp[1] +host.getRest().execute(this, inp);
    }
}