Current File : /home/vacivi36/code/vendor/friendsofphp/php-cs-fixer/src/Fixer/ControlStructure/ElseifFixer.php
<?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\ControlStructure;
use PhpCsFixer\AbstractFixer;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
* Fixer for rules defined in PSR2 ¶5.1.
*
* @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
*/
final class ElseifFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function getDefinition(): FixerDefinitionInterface
{
return new FixerDefinition(
'The keyword `elseif` should be used instead of `else if` so that all control keywords look like single words.',
[new CodeSample("<?php\nif (\$a) {\n} else if (\$b) {\n}\n")]
);
}
/**
* {@inheritdoc}
*
* Must run after NoAlternativeSyntaxFixer.
*/
public function getPriority(): int
{
return 40;
}
/**
* {@inheritdoc}
*/
public function isCandidate(Tokens $tokens): bool
{
return $tokens->isAllTokenKindsFound([T_IF, T_ELSE]);
}
/**
* Replace all `else if` (T_ELSE T_IF) with `elseif` (T_ELSEIF).
*
* {@inheritdoc}
*/
protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
{
foreach ($tokens as $index => $token) {
if (!$token->isGivenKind(T_ELSE)) {
continue;
}
$ifTokenIndex = $tokens->getNextMeaningfulToken($index);
// if next meaningful token is not T_IF - continue searching, this is not the case for fixing
if (!$tokens[$ifTokenIndex]->isGivenKind(T_IF)) {
continue;
}
// if next meaningful token is T_IF, but uses an alternative syntax - this is not the case for fixing neither
$conditionEndBraceIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $tokens->getNextMeaningfulToken($ifTokenIndex));
$afterConditionIndex = $tokens->getNextMeaningfulToken($conditionEndBraceIndex);
if ($tokens[$afterConditionIndex]->equals(':')) {
continue;
}
// now we have T_ELSE following by T_IF with no alternative syntax so we could fix this
// 1. clear whitespaces between T_ELSE and T_IF
$tokens->clearAt($index + 1);
// 2. change token from T_ELSE into T_ELSEIF
$tokens[$index] = new Token([T_ELSEIF, 'elseif']);
// 3. clear succeeding T_IF
$tokens->clearAt($ifTokenIndex);
$beforeIfTokenIndex = $tokens->getPrevNonWhitespace($ifTokenIndex);
// 4. clear extra whitespace after T_IF in T_COMMENT,T_WHITESPACE?,T_IF,T_WHITESPACE sequence
if ($tokens[$beforeIfTokenIndex]->isComment() && $tokens[$ifTokenIndex + 1]->isWhitespace()) {
$tokens->clearAt($ifTokenIndex + 1);
}
}
}
}
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