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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 PhpCsFixer;
use PhpCsFixer\Tokenizer\Analyzer\FunctionsAnalyzer;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @internal
*
* @author Vladimir Reznichenko <kalessil@gmail.com>
*/
abstract class AbstractFunctionReferenceFixer extends AbstractFixer
{
/**
* {@inheritdoc}
*/
public function isRisky()
{
return true;
}
/**
* Looks up Tokens sequence for suitable candidates and delivers boundaries information,
* which can be supplied by other methods in this abstract class.
*
* @param string $functionNameToSearch
* @param Tokens $tokens
* @param int $start
* @param null|int $end
*
* @return null|int[] returns $functionName, $openParenthesis, $closeParenthesis packed into array
*/
protected function find($functionNameToSearch, Tokens $tokens, $start = 0, $end = null)
{
// make interface consistent with findSequence
$end = null === $end ? $tokens->count() : $end;
// find raw sequence which we can analyse for context
$candidateSequence = [[T_STRING, $functionNameToSearch], '('];
$matches = $tokens->findSequence($candidateSequence, $start, $end, false);
if (null === $matches) {
// not found, simply return without further attempts
return null;
}
// translate results for humans
list($functionName, $openParenthesis) = array_keys($matches);
$functionsAnalyzer = new FunctionsAnalyzer();
if (!$functionsAnalyzer->isGlobalFunctionCall($tokens, $functionName)) {
return $this->find($functionNameToSearch, $tokens, $openParenthesis, $end);
}
return [$functionName, $openParenthesis, $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $openParenthesis)];
}
}