/
PhpdocTrimFixer.php
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/
PhpdocTrimFixer.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\Phpdoc;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Preg;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @author Graham Campbell <hello@gjcampbell.co.uk>
*/
final class PhpdocTrimFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function getDefinition(): FixerDefinitionInterface
{
return new FixerDefinition(
'PHPDoc should start and end with content, excluding the very first and last line of the docblocks.',
[new CodeSample('<?php
/**
*
* Foo must be final class.
*
*
*/
final class Foo {}
')]
);
}
/**
* {@inheritdoc}
*
* Must run before PhpdocAlignFixer.
* Must run after AlignMultilineCommentFixer, CommentToPhpdocFixer, GeneralPhpdocAnnotationRemoveFixer, PhpUnitTestAnnotationFixer, PhpdocIndentFixer, PhpdocNoAccessFixer, PhpdocNoEmptyReturnFixer, PhpdocNoPackageFixer, PhpdocOrderFixer, PhpdocScalarFixer, PhpdocToCommentFixer, PhpdocTypesFixer.
*/
public function getPriority(): int
{
return -5;
}
/**
* {@inheritdoc}
*/
public function isCandidate(Tokens $tokens): bool
{
return $tokens->isTokenKindFound(T_DOC_COMMENT);
}
/**
* {@inheritdoc}
*/
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
foreach ($tokens as $index => $token) {
if (!$token->isGivenKind(T_DOC_COMMENT)) {
continue;
}
$content = $token->getContent();
$content = $this->fixStart($content);
// we need re-parse the docblock after fixing the start before
// fixing the end in order for the lines to be correctly indexed
$content = $this->fixEnd($content);
$tokens[$index] = new Token([T_DOC_COMMENT, $content]);
}
}
/**
* Make sure the first useful line starts immediately after the first line.
*/
private function fixStart(string $content): string
{
return Preg::replace(
'~
(^/\*\*) # DocComment begin
(?:
\R\h*(?:\*\h*)? # lines without useful content
(?!\R\h*\*/) # not followed by a DocComment end
)+
(\R\h*(?:\*\h*)?\S) # first line with useful content
~x',
'$1$2',
$content
);
}
/**
* Make sure the last useful line is immediately before the final line.
*/
private function fixEnd(string $content): string
{
return Preg::replace(
'~
(\R\h*(?:\*\h*)?\S.*?) # last line with useful content
(?:
(?<!/\*\*) # not preceded by a DocComment start
\R\h*(?:\*\h*)? # lines without useful content
)+
(\R\h*\*/$) # DocComment end
~xu',
'$1$2',
$content
);
}
}