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CleanNamespaceFixer.php
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CleanNamespaceFixer.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\NamespaceNotation;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\FixerDefinition\VersionSpecification;
use PhpCsFixer\FixerDefinition\VersionSpecificCodeSample;
use PhpCsFixer\Tokenizer\Tokens;
final class CleanNamespaceFixer extends AbstractFixer
{
public function getDefinition(): FixerDefinitionInterface
{
$samples = [];
foreach (['namespace Foo \ Bar;', 'echo foo /* comment */ \ bar();'] as $sample) {
$samples[] = new VersionSpecificCodeSample(
"<?php\n".$sample."\n",
new VersionSpecification(null, 8_00_00 - 1)
);
}
return new FixerDefinition(
'Namespace must not contain spacing, comments or PHPDoc.',
$samples
);
}
public function isCandidate(Tokens $tokens): bool
{
return \PHP_VERSION_ID < 8_00_00 && $tokens->isTokenKindFound(T_NS_SEPARATOR);
}
/**
* {@inheritdoc}
*
* Must run before PhpUnitDataProviderReturnTypeFixer.
*/
public function getPriority(): int
{
return 3;
}
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
$count = $tokens->count();
for ($index = 0; $index < $count; ++$index) {
if ($tokens[$index]->isGivenKind(T_NS_SEPARATOR)) {
$previousIndex = $tokens->getPrevMeaningfulToken($index);
$index = $this->fixNamespace(
$tokens,
$tokens[$previousIndex]->isGivenKind(T_STRING) ? $previousIndex : $index
);
}
}
}
/**
* @param int $index start of namespace
*/
private function fixNamespace(Tokens $tokens, int $index): int
{
$tillIndex = $index;
// go to the end of the namespace
while ($tokens[$tillIndex]->isGivenKind([T_NS_SEPARATOR, T_STRING])) {
$tillIndex = $tokens->getNextMeaningfulToken($tillIndex);
}
$tillIndex = $tokens->getPrevMeaningfulToken($tillIndex);
$spaceIndices = [];
for (; $index <= $tillIndex; ++$index) {
if ($tokens[$index]->isGivenKind(T_WHITESPACE)) {
$spaceIndices[] = $index;
} elseif ($tokens[$index]->isComment()) {
$tokens->clearAt($index);
}
}
if ($tokens[$index - 1]->isWhitespace()) {
array_pop($spaceIndices);
}
foreach ($spaceIndices as $i) {
$tokens->clearAt($i);
}
return $index;
}
}