1<?php
2/**
3 * Generic_Sniffs_Files_OneInterfacePerFileSniff.
4 *
5 * PHP version 5
6 *
7 * @category  PHP
8 * @package   PHP_CodeSniffer
9 * @author    Andy Grunwald <andygrunwald@gmail.com>
10 * @copyright 2010-2014 Andy Grunwald
11 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
12 * @link      http://pear.php.net/package/PHP_CodeSniffer
13 */
14
15/**
16 * Checks that only one interface is declared per file.
17 *
18 * @category  PHP
19 * @package   PHP_CodeSniffer
20 * @author    Andy Grunwald <andygrunwald@gmail.com>
21 * @copyright 2010-2014 Andy Grunwald
22 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
23 * @version   Release: @package_version@
24 * @link      http://pear.php.net/package/PHP_CodeSniffer
25 */
26class Generic_Sniffs_Files_OneInterfacePerFileSniff implements PHP_CodeSniffer_Sniff
27{
28
29
30    /**
31     * Returns an array of tokens this test wants to listen for.
32     *
33     * @return array
34     */
35    public function register()
36    {
37        return array(T_INTERFACE);
38
39    }//end register()
40
41
42    /**
43     * Processes this sniff, when one of its tokens is encountered.
44     *
45     * @param PHP_CodeSniffer_File $phpcsFile The file being scanned.
46     * @param int                  $stackPtr  The position of the current token in
47     *                                        the stack passed in $tokens.
48     *
49     * @return void
50     */
51    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr)
52    {
53        $nextInterface = $phpcsFile->findNext($this->register(), ($stackPtr + 1));
54        if ($nextInterface !== false) {
55            $error = 'Only one interface is allowed in a file';
56            $phpcsFile->addError($error, $nextInterface, 'MultipleFound');
57        }
58
59    }//end process()
60
61
62}//end class
63