annotate vendor/squizlabs/php_codesniffer/CodeSniffer/Sniff.php @ 2:5311817fb629

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<?php
/**
 * Represents a PHP_CodeSniffer sniff for sniffing coding standards.
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PHP_CodeSniffer
 * @author    Greg Sherwood <[e-mail]>
 * @author    Marc McIntyre <[e-mail]>
 * @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 * @link      http://pear.php.net/package/PHP_CodeSniffer
 */

/**
 * Represents a PHP_CodeSniffer sniff for sniffing coding standards.
 *
 * A sniff registers what token types it wishes to listen for, then, when
 * PHP_CodeSniffer encounters that token, the sniff is invoked and passed
 * information about where the token was found in the stack, and the
 * PHP_CodeSniffer file in which the token was found.
 *
 * @category  PHP
 * @package   PHP_CodeSniffer
 * @author    Greg Sherwood <[e-mail]>
 * @author    Marc McIntyre <[e-mail]>
 * @copyright 2006-2014 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/squizlabs/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 * @version   Release: @package_version@
 * @link      http://pear.php.net/package/PHP_CodeSniffer
 */
interface PHP_CodeSniffer_Sniff
{


    /**
     * Registers the tokens that this sniff wants to listen for.
     *
     * An example return value for a sniff that wants to listen for whitespace
     * and any comments would be:
     *
     * <code>
     *    return array(
     *            T_WHITESPACE,
     *            T_DOC_COMMENT,
     *            T_COMMENT,
     *           );
     * </code>
     *
     * @return int[]
     * @see    Tokens.php
     */
    public function register();


    /**
     * Called when one of the token types that this sniff is listening for
     * is found.
     *
     * The stackPtr variable indicates where in the stack the token was found.
     * A sniff can acquire information this token, along with all the other
     * tokens within the stack by first acquiring the token stack:
     *
     * <code>
     *    $tokens = $phpcsFile->getTokens();
     *    echo 'Encountered a '.$tokens[$stackPtr]['type'].' token';
     *    echo 'token information: ';
     *    print_r($tokens[$stackPtr]);
     * </code>
     *
     * If the sniff discovers an anomaly in the code, they can raise an error
     * by calling addError() on the PHP_CodeSniffer_File object, specifying an error
     * message and the position of the offending token:
     *
     * <code>
     *    $phpcsFile->addError('Encountered an error', $stackPtr);
     * </code>
     *
     * @param PHP_CodeSniffer_File $phpcsFile The PHP_CodeSniffer file where the
     *                                        token was found.
     * @param int                  $stackPtr  The position in the PHP_CodeSniffer
     *                                        file's token stack where the token
     *                                        was found.
     *
     * @return void|int Optionally returns a stack pointer. The sniff will not be
     *                  called again on the current file until the returned stack
     *                  pointer is reached. Return (count($tokens) + 1) to skip
     *                  the rest of the file.
     */
    public function process(PHP_CodeSniffer_File $phpcsFile, $stackPtr);


}//end interface