xarxaprod-wp-theme/vendor/phpcompatibility/php-compatibility/PHPCompatibility/Sniffs/Variables/NewUniformVariableSyntaxSni...

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2024-01-09 16:13:20 +01:00
<?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\Variables;
use PHPCompatibility\Sniff;
use PHP_CodeSniffer_File as File;
use PHP_CodeSniffer_Tokens as Tokens;
/**
* The interpretation of variable variables has changed in PHP 7.0.
*
* PHP version 7.0
*
* @link https://www.php.net/manual/en/migration70.incompatible.php#migration70.incompatible.variable-handling.indirect
* @link https://wiki.php.net/rfc/uniform_variable_syntax
*
* @since 7.1.2
* @since 9.0.0 Renamed from `VariableVariablesSniff` to `NewUniformVariableSyntaxSniff`.
*/
class NewUniformVariableSyntaxSniff extends Sniff
{
/**
* Returns an array of tokens this test wants to listen for.
*
* @since 7.1.2
*
* @return array
*/
public function register()
{
return array(\T_VARIABLE);
}
/**
* Processes this test, when one of its tokens is encountered.
*
* @since 7.1.2
*
* @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('7.0') === false) {
return;
}
$tokens = $phpcsFile->getTokens();
// Verify that the next token is a square open bracket. If not, bow out.
$nextToken = $phpcsFile->findNext(Tokens::$emptyTokens, ($stackPtr + 1), null, true, null, true);
if ($nextToken === false || $tokens[$nextToken]['code'] !== \T_OPEN_SQUARE_BRACKET || isset($tokens[$nextToken]['bracket_closer']) === false) {
return;
}
// The previous non-empty token has to be a $, -> or ::.
$prevToken = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($stackPtr - 1), null, true, null, true);
if ($prevToken === false || \in_array($tokens[$prevToken]['code'], array(\T_DOLLAR, \T_OBJECT_OPERATOR, \T_DOUBLE_COLON), true) === false) {
return;
}
// For static object calls, it only applies when this is a function call.
if ($tokens[$prevToken]['code'] === \T_DOUBLE_COLON) {
$hasBrackets = $tokens[$nextToken]['bracket_closer'];
while (($hasBrackets = $phpcsFile->findNext(Tokens::$emptyTokens, ($hasBrackets + 1), null, true, null, true)) !== false) {
if ($tokens[$hasBrackets]['code'] === \T_OPEN_SQUARE_BRACKET) {
if (isset($tokens[$hasBrackets]['bracket_closer'])) {
$hasBrackets = $tokens[$hasBrackets]['bracket_closer'];
continue;
} else {
// Live coding.
return;
}
} elseif ($tokens[$hasBrackets]['code'] === \T_OPEN_PARENTHESIS) {
// Caught!
break;
} else {
// Not a function call, so bow out.
return;
}
}
// Now let's also prevent false positives when used with self and static which still work fine.
$classToken = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($prevToken - 1), null, true, null, true);
if ($classToken !== false) {
if ($tokens[$classToken]['code'] === \T_STATIC || $tokens[$classToken]['code'] === \T_SELF) {
return;
} elseif ($tokens[$classToken]['code'] === \T_STRING && $tokens[$classToken]['content'] === 'self') {
return;
}
}
}
$phpcsFile->addError(
'Indirect access to variables, properties and methods will be evaluated strictly in left-to-right order since PHP 7.0. Use curly braces to remove ambiguity.',
$stackPtr,
'Found'
);
}
}