/**
 *
 * Copyright (c) 2013 Stefan Fleiter
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.thoughtworks.paranamer;

import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

/**
 * Paranamer that works on basis of the parameter position and can be used as
 * last fallback of the <code>AdaptiveParanamer</code>.
 * 
 * @author Stefan Fleiter
 */
public class PositionalParanamer implements Paranamer {

    private final String prefix;

    /**
     * Default Contstructor with prefix <code>arg</code>.
     */
    public PositionalParanamer() {
        this("arg");
    }

    /**
     * Constructor that allows to override the prefix.
     * 
     * @param prefix
     *            string that is prepended before the position of the parameter.
     */
    public PositionalParanamer(String prefix) {
        super();
        this.prefix = prefix;
    }

    public String[] lookupParameterNames(AccessibleObject methodOrConstructor) {
        return lookupParameterNames(methodOrConstructor, true);
    }

    public String[] lookupParameterNames(AccessibleObject methodOrCtor,
            boolean throwExceptionIfMissing) {
        int count;
        if (methodOrCtor instanceof Method) {
            Method method = (Method) methodOrCtor;
            count = method.getParameterTypes().length;
        } else {
            Constructor<?> constructor = (Constructor<?>) methodOrCtor;
            count = constructor.getParameterTypes().length;
        }
        String[] result = new String[count];
        for (int i = 0; i < result.length; i++) {
            result[i] = prefix + i;
        }
        return result;
    }

}

@@ -2699,17 +2699,269 @@
 nt count
-;
+ = count(methodOrCtor);%0A        String%5B%5D result = new String%5Bcount%5D;%0A        for (int i = 0; i %3C result.length; i++) %7B%0A            result%5Bi%5D = prefix + i;%0A        %7D%0A        return result;%0A    %7D%0A    %0A    private int count(AccessibleObject methodOrCtor) %7B
 %0A       
@@ -3062,23 +3062,22 @@
         
-count =
+return
  method.
@@ -3117,20 +3117,9 @@
    %7D
- else %7B%0A    
+%0A
     
@@ -3194,19 +3194,14 @@
     
-    count =
+return
  con
@@ -3241,182 +3241,8 @@
 th;%0A
-        %7D%0A        String%5B%5D result = new String%5Bcount%5D;%0A        for (int i = 0; i %3C result.length; i++) %7B%0A            result%5Bi%5D = prefix + i;%0A        %7D%0A        return result;%0A
     

Split method