<?php
/**
* PHPCompatibility, an external standard for PHP_CodeSniffer.
*
* @package PHPCompatibility
* @copyright 2012-2019 PHPCompatibility Contributors
* @license https://opensource.org/licenses/LGPL-3.0 LGPL3
* @link https://github.com/PHPCompatibility/PHPCompatibility
*/
namespace PHPCompatibility\Sniffs\Operators;
use PHPCompatibility\Sniff;
use PHP_CodeSniffer_File as File;
/**
* Detect usage of the short ternary (elvis) operator as introduced in PHP 5.3.
*
* Performs checks on ternary operators, specifically that the middle expression
* is not omitted for versions that don't support this.
*
* PHP version 5.3
*
* @link https://www.php.net/manual/en/migration53.new-features.php
* @link https://www.php.net/manual/en/language.operators.comparison.php#language.operators.comparison.ternary
*
* @since 7.0.0
* @since 7.0.8 This sniff now throws an error instead of a warning.
* @since 9.0.0 Renamed from `TernaryOperatorsSniff` to `NewShortTernarySniff`.
*/
class NewShortTernarySniff extends Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @since 7.0.0
*
* @return array
*/
public function register()
{
return array(\T_INLINE_THEN);
}
/**
* Processes this test, when one of its tokens is encountered.
*
* @since 7.0.0
*
* @param \PHP_CodeSniffer_File $phpcsFile The file being scanned.
* @param int $stackPtr The position of the current token in the
* stack passed in $tokens.
*
* @return void
*/
public function process(File $phpcsFile, $stackPtr)
{
if ($this->supportsBelow('5.2') === false) {
return;
}
if ($this->isShortTernary($phpcsFile, $stackPtr) === false) {
return;
}
$phpcsFile->addError(
'Middle may not be omitted from ternary operators in PHP < 5.3',
$stackPtr,
'MiddleMissing'
);
}
}