xarxaprod-wp-theme/vendor/phpcompatibility/php-compatibility/PHPCompatibility/Sniffs/Operators/RemovedTernaryAssociativity...

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<?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 PHPCompatibility\PHPCSHelper;
use PHP_CodeSniffer_File as File;
use PHP_CodeSniffer_Tokens as Tokens;
/**
* The left-associativity of the ternary operator is deprecated in PHP 7.4 and
* removed in PHP 8.0.
*
* PHP version 7.4
* PHP version 8.0
*
* @link https://www.php.net/manual/en/migration74.deprecated.php#migration74.deprecated.core.nested-ternary
* @link https://wiki.php.net/rfc/ternary_associativity
* @link https://github.com/php/php-src/pull/4017
*
* @since 9.2.0
*/
class RemovedTernaryAssociativitySniff extends Sniff
{
/**
* List of tokens with a lower operator precedence than ternary.
*
* @since 9.2.0
*
* @var array
*/
private $tokensWithLowerPrecedence = array(
'T_YIELD_FROM' => true,
'T_YIELD' => true,
'T_LOGICAL_AND' => true,
'T_LOGICAL_OR' => true,
'T_LOGICAL_XOR' => true,
);
/**
* Returns an array of tokens this test wants to listen for.
*
* @since 9.2.0
*
* @return array
*/
public function register()
{
return array(\T_INLINE_THEN);
}
/**
* Processes this test, when one of its tokens is encountered.
*
* @since 9.2.0
*
* @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->supportsAbove('7.4') === false) {
return;
}
$tokens = $phpcsFile->getTokens();
$endOfStatement = PHPCSHelper::findEndOfStatement($phpcsFile, $stackPtr);
if ($tokens[$endOfStatement]['code'] !== \T_SEMICOLON
&& $tokens[$endOfStatement]['code'] !== \T_COLON
&& $tokens[$endOfStatement]['code'] !== \T_COMMA
&& $tokens[$endOfStatement]['code'] !== \T_DOUBLE_ARROW
&& $tokens[$endOfStatement]['code'] !== \T_OPEN_TAG
&& $tokens[$endOfStatement]['code'] !== \T_CLOSE_TAG
) {
// End of statement is last non-empty before close brace, so make sure we examine that token too.
++$endOfStatement;
}
$ternaryCount = 0;
$elseCount = 0;
$shortTernaryCount = 0;
// Start at $stackPtr so we don't need duplicate code for short ternary determination.
for ($i = $stackPtr; $i < $endOfStatement; $i++) {
if (($tokens[$i]['code'] === \T_OPEN_SHORT_ARRAY
|| $tokens[$i]['code'] === \T_OPEN_SQUARE_BRACKET
|| $tokens[$i]['code'] === \T_OPEN_CURLY_BRACKET)
&& isset($tokens[$i]['bracket_closer'])
) {
// Skip over short arrays, array access keys and curlies.
$i = $tokens[$i]['bracket_closer'];
continue;
}
if ($tokens[$i]['code'] === \T_OPEN_PARENTHESIS
&& isset($tokens[$i]['parenthesis_closer'])
) {
// Skip over anything between parentheses.
$i = $tokens[$i]['parenthesis_closer'];
continue;
}
// Check for operators with lower operator precedence.
if (isset(Tokens::$assignmentTokens[$tokens[$i]['code']])
|| isset($this->tokensWithLowerPrecedence[$tokens[$i]['code']])
) {
break;
}
if ($tokens[$i]['code'] === \T_INLINE_THEN) {
++$ternaryCount;
if ($this->isShortTernary($phpcsFile, $i) === true) {
++$shortTernaryCount;
}
continue;
}
if ($tokens[$i]['code'] === \T_INLINE_ELSE) {
if (($ternaryCount - $elseCount) >= 2) {
// This is the `else` for a ternary in the middle part of a previous ternary.
--$ternaryCount;
} else {
++$elseCount;
}
continue;
}
}
if ($ternaryCount > 1 && $ternaryCount === $elseCount && $ternaryCount > $shortTernaryCount) {
$message = 'The left-associativity of the ternary operator has been deprecated in PHP 7.4';
$isError = false;
if ($this->supportsAbove('8.0') === true) {
$message .= ' and removed in PHP 8.0';
$isError = true;
}
$message .= '. Multiple consecutive ternaries detected. Use parenthesis to clarify the order in which the operations should be executed';
$this->addMessage($phpcsFile, $message, $stackPtr, $isError);
}
}
}