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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\Tokenizer\Analyzer;
use PhpCsFixer\Tokenizer\Analyzer\Analysis\ArgumentAnalysis;
use PhpCsFixer\Tokenizer\Analyzer\Analysis\TypeAnalysis;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\Tokens;
/**
* @internal
*/
final class FunctionsAnalyzer
{
/**
* @param Tokens $tokens
* @param int $index
*
* @return bool
*/
public function isGlobalFunctionCall(Tokens $tokens, $index)
{
if (!$tokens[$index]->isGivenKind(T_STRING)) {
return false;
}
$prevIndex = $tokens->getPrevMeaningfulToken($index);
if ($tokens[$prevIndex]->isGivenKind(T_NS_SEPARATOR)) {
$prevIndex = $tokens->getPrevMeaningfulToken($prevIndex);
}
$nextIndex = $tokens->getNextMeaningfulToken($index);
return !$tokens[$prevIndex]->isGivenKind([T_DOUBLE_COLON, T_FUNCTION, CT::T_NAMESPACE_OPERATOR, T_NEW, T_OBJECT_OPERATOR, CT::T_RETURN_REF, T_STRING])
&& $tokens[$nextIndex]->equals('(');
}
/**
* @param Tokens $tokens
* @param int $methodIndex
*
* @return ArgumentAnalysis[]
*/
public function getFunctionArguments(Tokens $tokens, $methodIndex)
{
$argumentsStart = $tokens->getNextTokenOfKind($methodIndex, ['(']);
$argumentsEnd = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $argumentsStart);
$argumentAnalyzer = new ArgumentsAnalyzer();
$arguments = [];
foreach ($argumentAnalyzer->getArguments($tokens, $argumentsStart, $argumentsEnd) as $start => $end) {
$argumentInfo = $argumentAnalyzer->getArgumentInfo($tokens, $start, $end);
$arguments[$argumentInfo->getName()] = $argumentInfo;
}
return $arguments;
}
/**
* @param Tokens $tokens
* @param int $methodIndex
*
* @return null|TypeAnalysis
*/
public function getFunctionReturnType(Tokens $tokens, $methodIndex)
{
$argumentsStart = $tokens->getNextTokenOfKind($methodIndex, ['(']);
$argumentsEnd = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $argumentsStart);
$typeColonIndex = $tokens->getNextMeaningfulToken($argumentsEnd);
if (':' !== $tokens[$typeColonIndex]->getContent()) {
return null;
}
$type = '';
$typeStartIndex = $tokens->getNextNonWhitespace($typeColonIndex);
$typeEndIndex = $typeStartIndex;
$functionBodyStart = $tokens->getNextTokenOfKind($typeColonIndex, ['{', ';']);
for ($i = $typeStartIndex; $i < $functionBodyStart; ++$i) {
if ($tokens[$i]->isWhitespace()) {
continue;
}
$type .= $tokens[$i]->getContent();
$typeEndIndex = $i;
}
return new TypeAnalysis($type, $typeStartIndex, $typeEndIndex);
}
}