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NoBlankLinesAfterClassOpeningFixer.php
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NoBlankLinesAfterClassOpeningFixer.php
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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\Fixer\ClassNotation;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\Fixer\WhitespacesAwareFixerInterface;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @author Ceeram <ceeram@cakephp.org>
*/
final class NoBlankLinesAfterClassOpeningFixer extends AbstractFixer implements WhitespacesAwareFixerInterface
{
public function isCandidate(Tokens $tokens): bool
{
return $tokens->isAnyTokenKindsFound(Token::getClassyTokenKinds());
}
public function getDefinition(): FixerDefinitionInterface
{
return new FixerDefinition(
'There should be no empty lines after class opening brace.',
[
new CodeSample(
'<?php
final class Sample
{
protected function foo()
{
}
}
'
),
]
);
}
/**
* {@inheritdoc}
*
* Must run after OrderedClassElementsFixer.
*/
public function getPriority(): int
{
return 0;
}
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
foreach ($tokens as $index => $token) {
if (!$token->isClassy()) {
continue;
}
$startBraceIndex = $tokens->getNextTokenOfKind($index, ['{']);
if (!$tokens[$startBraceIndex + 1]->isWhitespace()) {
continue;
}
$this->fixWhitespace($tokens, $startBraceIndex + 1);
}
}
/**
* Cleanup a whitespace token.
*/
private function fixWhitespace(Tokens $tokens, int $index): void
{
$content = $tokens[$index]->getContent();
// if there is more than one new line in the whitespace, then we need to fix it
if (substr_count($content, "\n") > 1) {
// the final bit of the whitespace must be the next statement's indentation
$tokens[$index] = new Token([T_WHITESPACE, $this->whitespacesConfig->getLineEnding().substr($content, strrpos($content, "\n") + 1)]);
}
}
}