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<?php
/*
* 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 Symfony\CS\Fixer\PSR2;
use Symfony\CS\AbstractFixer;
use Symfony\CS\Tokenizer\Tokens;
/**
* Fixer for rules defined in PSR2 ¶4.3, ¶4.6, ¶5.
*
* @author Marc Aubé
* @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
*/
class ParenthesisFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function fix(\SplFileInfo $file, $content)
{
$tokens = Tokens::fromCode($content);
foreach ($tokens as $index => $token) {
if (!$token->equals('(')) {
continue;
}
$prevIndex = $tokens->getPrevMeaningfulToken($index);
// ignore parenthesis for T_ARRAY
if (null !== $prevIndex && $tokens[$prevIndex]->isGivenKind(T_ARRAY)) {
continue;
}
$endIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $index);
// remove space after opening `(`
$this->removeSpaceAroundToken($tokens, $index, 1);
// remove space after closing `)` if it is not `list($a, $b, )` case
if (!$tokens[$tokens->getPrevMeaningfulToken($endIndex)]->equals(',')) {
$this->removeSpaceAroundToken($tokens, $endIndex, -1);
}
}
return $tokens->generateCode();
}
/**
* {@inheritdoc}
*/
public function getDescription()
{
return 'There MUST NOT be a space after the opening parenthesis. There MUST NOT be a space before the closing parenthesis.';
}
/**
* Remove spaces on one side of the token at a given index.
*
* @param Tokens $tokens A collection of code tokens
* @param int $index The token index
* @param int $offset The offset where to start looking for spaces
*/
private function removeSpaceAroundToken(Tokens $tokens, $index, $offset)
{
if (!isset($tokens[$index + $offset])) {
return;
}
$token = $tokens[$index + $offset];
if ($token->isWhitespace() && false === strpos($token->getContent(), "\n")) {
if (isset($tokens[$index + $offset - 1])) {
$prevToken = $tokens[$index + $offset - 1];
if ($prevToken->isComment() && false !== strpos($prevToken->getContent(), "\n")) {
return;
}
}
$token->clear();
}
}
}