coder-8.x-3.x-dev/coder_sniffer/Drupal/Sniffs/Semantics/UnsilencedDeprecationSniff.php

<?php
/**
 * \Drupal\Sniffs\Semantics\UnsilencedDeprecationSniff.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */

namespace Drupal\Sniffs\Semantics;

use PHP_CodeSniffer\Files\File;

/**
 * Checks that the trigger_error deprecation is silenced by a preceding '@'.
 *
 * @category PHP
 * @package  PHP_CodeSniffer
 * @link     http://pear.php.net/package/PHP_CodeSniffer
 */
class UnsilencedDeprecationSniff extends FunctionCall
{


    /**
     * Returns an array of function names this test wants to listen for.
     *
     * @return array<string>
     */
    public function registerFunctionNames()
    {
        return ['trigger_error'];
    }


    /**
     * Processes this function call.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile    The file being scanned.
     * @param int                         $stackPtr     The position of the function call in
     *                                                  the stack.
     * @param int                         $openBracket  The position of the opening
     *                                                  parenthesis in the stack.
     * @param int                         $closeBracket The position of the closing
     *                                                  parenthesis in the stack.
     *
     * @return void
     */
    public function processFunctionCall(
        File $phpcsFile,
        $stackPtr,
        $openBracket,
        $closeBracket
    ) {

        $tokens   = $phpcsFile->getTokens();
        $argument = $this->getArgument(2);

        // If no second argument then quit.
        if ($argument === false) {
            return;
        }

        // Only check deprecation messages.
        if (strcasecmp($tokens[$argument['start']]['content'], 'E_USER_DEPRECATED') !== 0) {
            return;
        }

        if ($tokens[($stackPtr - 1)]['type'] !== 'T_ASPERAND') {
            $error = 'All trigger_error calls used for deprecation must be prefixed by an "@"';
            $fix   = $phpcsFile->addFixableError($error, $stackPtr, 'UnsilencedDeprecation');
            if ($fix === true) {
                $phpcsFile->fixer->addContentBefore($stackPtr, '@');
            }
        }
    }
}