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<?php |
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declare(strict_types = 1); |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2012, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Instrument\Transformer; |
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use Go\Instrument\PathResolver; |
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use Go\ParserReflection\ReflectionEngine; |
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use InvalidArgumentException; |
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use PhpParser\Node; |
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use function is_array, is_resource; |
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/** |
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* Stream metadata object |
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* |
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* @property-read string $source |
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*/ |
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class StreamMetaData |
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{ |
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/** |
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* Mapping between array keys and properties |
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* |
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* @var array |
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*/ |
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private static $propertyMap = [ |
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'stream_type' => 'streamType', |
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'wrapper_type' => 'wrapperType', |
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'wrapper_data' => 'wrapperData', |
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'filters' => 'filterList', |
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'uri' => 'uri', |
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]; |
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/** |
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* A label describing the underlying implementation of the stream. |
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* |
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* @var string |
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*/ |
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public $streamType; |
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/** |
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* A label describing the protocol wrapper implementation layered over the stream. |
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* |
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* @var string |
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*/ |
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public $wrapperType; |
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/** |
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* Wrapper-specific data attached to this stream. |
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* |
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* @var mixed |
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*/ |
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public $wrapperData; |
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/** |
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* Array containing the names of any filters that have been stacked onto this stream. |
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* |
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* @var array |
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*/ |
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public $filterList; |
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/** |
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* The URI/filename associated with this stream. |
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* |
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* @var string |
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*/ |
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public $uri; |
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/** |
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* Information about syntax tree |
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* |
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* @var Node[] |
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*/ |
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public $syntaxTree; |
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/** |
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* List of source tokens |
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* |
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* @var array |
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*/ |
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public $tokenStream = []; |
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/** |
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* Creates metadata object from stream |
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* |
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* @param resource $stream Instance of stream |
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* @param string $source Source code or null |
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* @throws \InvalidArgumentException for invalid stream |
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*/ |
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public function __construct($stream, string $source = null) |
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{ |
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if (!is_resource($stream)) { |
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throw new InvalidArgumentException('Stream should be valid resource'); |
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} |
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$metadata = stream_get_meta_data($stream); |
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if (preg_match('/resource=(.+)$/', $metadata['uri'], $matches)) { |
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$metadata['uri'] = PathResolver::realpath($matches[1]); |
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} |
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foreach ($metadata as $key => $value) { |
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if (!isset(self::$propertyMap[$key])) { |
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continue; |
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} |
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$mappedKey = self::$propertyMap[$key]; |
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$this->$mappedKey = $value; |
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} |
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$this->syntaxTree = ReflectionEngine::parseFile($this->uri, $source); |
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$this->setTokenStreamFromRawTokens(ReflectionEngine::getLexer()->getTokens()); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function __get($name) |
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{ |
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if ($name === 'source') { |
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return $this->getSource(); |
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} |
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return null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function __set($name, $value) |
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{ |
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if ($name === 'source') { |
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trigger_error('Setting StreamMetaData->source is deprecated, use tokenStream instead', E_USER_DEPRECATED); |
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$this->setSource($value); |
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} |
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} |
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/** |
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* Returns source code directly from tokens |
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*/ |
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private function getSource(): string |
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{ |
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$transformedSource = ''; |
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foreach ($this->tokenStream as $token) { |
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$transformedSource .= $token[1] ?? $token; |
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} |
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return $transformedSource; |
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} |
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/** |
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* Sets the new source for this file |
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* |
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* @TODO: Unfortunately, AST won't be changed, so please be accurate during transformation |
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* |
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* @param string $newSource |
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*/ |
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private function setSource(string $newSource): void |
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{ |
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$rawTokens = token_get_all($newSource); |
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$this->setTokenStreamFromRawTokens($rawTokens); |
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} |
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/** |
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* Sets an array of token identifiers for this file |
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* |
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* @param array $rawTokens |
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*/ |
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public function setTokenStreamFromRawTokens($rawTokens): void |
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{ |
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foreach ($rawTokens as $index => $rawToken) { |
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$this->tokenStream[$index] = is_array($rawToken) ? $rawToken : [T_STRING, $rawToken]; |
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} |
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} |
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} |
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goaop /
framework
