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<?php |
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namespace Funivan\PhpTokenizer\Pattern\Patterns; |
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use Funivan\PhpTokenizer\Collection; |
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use Funivan\PhpTokenizer\QuerySequence\QuerySequence; |
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use Funivan\PhpTokenizer\Strategy\Section; |
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use Funivan\PhpTokenizer\Token; |
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/** |
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* Find method in code |
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*/ |
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class ParametersPattern implements PatternInterface { |
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/** |
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* @var array |
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*/ |
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private $argumentCheck = []; |
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/** |
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* @var int|null |
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*/ |
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private $outputArgument = null; |
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/** |
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* @var bool |
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*/ |
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private $fullSearch = true; |
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/** |
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* |
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*/ |
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public function __construct() { |
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$this->outputFull(); |
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$this->startFromFunction(); |
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} |
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/** |
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* @return $this |
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*/ |
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public function startFromParenthesis() { |
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$this->fullSearch = false; |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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public function startFromFunction() { |
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$this->fullSearch = true; |
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return $this; |
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} |
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/** |
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* @param QuerySequence $querySequence |
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* @return Collection|null |
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* @throws \Exception |
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*/ |
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public function __invoke(QuerySequence $querySequence) { |
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if ($this->fullSearch) { |
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$querySequence->strict(T_FUNCTION); |
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$querySequence->possible(T_WHITESPACE); |
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$querySequence->possible(T_STRING); |
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$querySequence->possible(T_WHITESPACE); |
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} |
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$section = $querySequence->section('(', ')'); |
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if ($section->count() === 0) { |
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return null; |
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} |
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$section->slice(1, -1); |
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if (empty($this->argumentCheck) and $this->outputArgument === null) { |
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return $section; |
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} |
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/** @var Collection[] $arguments */ |
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$arguments = $this->getArguments($section); |
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foreach ($this->argumentCheck as $index => $check) { |
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$argumentTokens = isset($arguments[$index]) ? $arguments[$index] : new Collection();; |
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$result = $check($argumentTokens); |
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if (!is_bool($result)) { |
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throw new \Exception('Argument check function should return boolean'); |
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} |
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if ($result === false) { |
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return null; |
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} |
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} |
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if ($this->outputArgument !== null) { |
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$argumentCollection = !empty($arguments[$this->outputArgument]) ? $arguments[$this->outputArgument] : null; |
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return $argumentCollection; |
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} |
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# output full |
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return $section; |
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} |
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/** |
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* @param int $int |
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* @param callable $check |
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* @return $this |
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*/ |
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public function withArgument($int, callable $check = null) { |
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if ($check === null) { |
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$check = function (Collection $argumentTokens) { |
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return $argumentTokens->count() !== 0; |
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}; |
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} |
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$this->argumentCheck[$int] = $check; |
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return $this; |
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} |
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/** |
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* @param int $int |
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* @return $this |
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*/ |
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public function withoutArgument($int) { |
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$check = function (Collection $argumentTokens) { |
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return $argumentTokens->count() === 0; |
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}; |
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$this->argumentCheck[$int] = $check; |
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return $this; |
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} |
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/** |
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* @param $section |
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* @return array |
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*/ |
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protected function getArguments(Collection $section) { |
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/** @var Token $skipToToken */ |
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$skipToToken = null; |
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$argumentIndex = 1; |
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$arguments = []; |
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$tokensNum = ($section->count() - 1); |
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for ($tokenIndex = 0; $tokenIndex <= $tokensNum; $tokenIndex++) { |
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$token = $section->offsetGet($tokenIndex); |
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if ($token === null) { |
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return null; |
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} |
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if ($skipToToken === null or $token->getIndex() >= $skipToToken->getIndex()) { |
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if ($token->getValue() === ',') { |
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$argumentIndex++; |
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continue; |
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} |
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$skipToToken = $this->getEndArray($token, $section, $tokenIndex); |
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} |
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if (!isset($arguments[$argumentIndex])) { |
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$arguments[$argumentIndex] = new Collection(); |
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} |
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$arguments[$argumentIndex][] = $token; |
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} |
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return $arguments; |
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} |
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/** |
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* @param Token $token |
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* @param Collection $section |
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* @param $index |
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* @return Token |
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*/ |
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private function getEndArray(Token $token, Collection $section, $index) { |
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// # check if we have array start |
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if ($token->getValue() === '[') { |
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$result = (new Section())->setDelimiters('[', ']')->process($section, $index); |
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return $result->getToken(); |
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} |
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if ($token->getValue() === 'array') { |
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# skip whitespace |
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$nextIndex = ($index + 1); |
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$nextToken = $section->offsetGet($nextIndex); |
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if ($nextToken->getType() === T_WHITESPACE) { |
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$nextIndex = ($index + 2); |
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} |
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$result = (new Section())->setDelimiters('(', ')')->process($section, $nextIndex); |
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return $result->getToken(); |
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} |
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return null; |
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} |
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/** |
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* @return $this |
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*/ |
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public function outputFull() { |
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$this->outputArgument = null; |
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return $this; |
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} |
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/** |
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* @param $int |
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* @return $this |
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*/ |
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public function outputArgument($int) { |
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$this->outputArgument = $int; |
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return $this; |
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} |
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} |
funivan /
PhpTokenizer
