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<?php
declare(strict_types=1);
/*
* This file is part of PHP CS Fixer.
*
* (c) Fabien Potencier <fabien@symfony.com>
* Dariusz Rumiński <dariusz.ruminski@gmail.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
namespace PhpCsFixer;
use PhpCsFixer\Tokenizer\Analyzer\ArgumentsAnalyzer;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @internal
*/
abstract class AbstractFopenFlagFixer extends AbstractFunctionReferenceFixer
{
/**
* {@inheritdoc}
*/
public function isCandidate(Tokens $tokens): bool
{
return $tokens->isAllTokenKindsFound([T_STRING, T_CONSTANT_ENCAPSED_STRING]);
}
/**
* {@inheritdoc}
*/
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
$argumentsAnalyzer = new ArgumentsAnalyzer();
$index = 0;
$end = $tokens->count() - 1;
while (true) {
$candidate = $this->find('fopen', $tokens, $index, $end);
if (null === $candidate) {
break;
}
$index = $candidate[1]; // proceed to '(' of `fopen`
// fetch arguments
$arguments = $argumentsAnalyzer->getArguments(
$tokens,
$index,
$candidate[2]
);
$argumentsCount = \count($arguments); // argument count sanity check
if ($argumentsCount < 2 || $argumentsCount > 4) {
continue;
}
$argumentStartIndex = array_keys($arguments)[1]; // get second argument index
$this->fixFopenFlagToken(
$tokens,
$argumentStartIndex,
$arguments[$argumentStartIndex]
);
}
}
abstract protected function fixFopenFlagToken(Tokens $tokens, int $argumentStartIndex, int $argumentEndIndex): void;
protected function isValidModeString(string $mode): bool
{
$modeLength = \strlen($mode);
if ($modeLength < 1 || $modeLength > 13) { // 13 === length 'r+w+a+x+c+etb'
return false;
}
$validFlags = [
'a' => true,
'b' => true,
'c' => true,
'e' => true,
'r' => true,
't' => true,
'w' => true,
'x' => true,
];
if (!isset($validFlags[$mode[0]])) {
return false;
}
unset($validFlags[$mode[0]]);
for ($i = 1; $i < $modeLength; ++$i) {
if (isset($validFlags[$mode[$i]])) {
unset($validFlags[$mode[$i]]);
continue;
}
if ('+' !== $mode[$i]
|| (
'a' !== $mode[$i - 1] // 'a+','c+','r+','w+','x+'
&& 'c' !== $mode[$i - 1]
&& 'r' !== $mode[$i - 1]
&& 'w' !== $mode[$i - 1]
&& 'x' !== $mode[$i - 1]
)
) {
return false;
}
}
return true;
}
}