home/alospiesjs/www/apis/youtube/vendor/classpreloader/classpreloader/src/CodeGenerator.php000060400000013414151156742350026460 0ustar00 * (c) Michael Dowling * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace ClassPreloader; use ClassPreloader\Exception\IOException; use ClassPreloader\File\FileUtils; use ClassPreloader\Parser\DirVisitor; use ClassPreloader\Parser\FileVisitor; use ClassPreloader\Parser\NodeTraverser; use ClassPreloader\Parser\StrictTypesVisitor; use PhpParser\Node\Stmt\Namespace_ as NamespaceNode; use PhpParser\Parser; use PhpParser\ParserFactory; use PhpParser\PrettyPrinter\Standard as PrettyPrinter; /** * This is the code generator class. */ final class CodeGenerator { /** * The printer. * * @var \PhpParser\PrettyPrinter\Standard */ private $printer; /** * The parser. * * @var \PhpParser\Parser */ private $parser; /** * The traverser. * * @var \ClassPreloader\Parser\NodeTraverser */ private $traverser; /** * Create a new class preloader instance. * * @param \PhpParser\PrettyPrinter\Standard $printer * @param \PhpParser\Parser $parser * @param \ClassPreloader\Parser\NodeTraverser $traverser * * @return void */ public function __construct(PrettyPrinter $printer, Parser $parser, NodeTraverser $traverser) { $this->printer = $printer; $this->parser = $parser; $this->traverser = $traverser; } /** * Create a new class preloader instance. * * Any options provided determine how the node traverser is setup. * * @param bool[] $options * @param \PhpParser\Parser|null $parser * * @return self */ public static function create(array $options = [], Parser $parser = null) { $printer = new PrettyPrinter(); $parser = $parser === null ? self::getParser() : $parser; $options = array_merge(['dir' => true, 'file' => true, 'skip' => false, 'strict' => false], $options); $traverser = self::getTraverser($options['dir'], $options['file'], $options['skip'], $options['strict']); return new self($printer, $parser, $traverser); } /** * Get the parser to use. * * @return \PhpParser\Parser */ private static function getParser() { return (new ParserFactory())->create(ParserFactory::PREFER_PHP7); } /** * Get the node traverser to use. * * @param bool $dir * @param bool $file * @param bool $skip * @param bool $strict * * @return \ClassPreloader\Parser\NodeTraverser */ private static function getTraverser(bool $dir, bool $file, bool $skip, bool $strict) { $traverser = new NodeTraverser(); if ($dir) { $traverser->addVisitor(new DirVisitor($skip)); } if ($file) { $traverser->addVisitor(new FileVisitor($skip)); } if (!$strict) { $traverser->addVisitor(new StrictTypesVisitor()); } return $traverser; } /** * Get a pretty printed string of code from a file while applying visitors. * * @param string $filePath * @param bool $withComments * * @throws \ClassPreloader\Exception\IOException * @throws \PhpParser\Error * * @return string */ public function getCode(string $filePath, bool $withComments = true) { $content = FileUtils::readPhpFile($filePath, $withComments); if ($content === false) { throw new IOException("Cannot open $filePath for reading."); } $parsed = $this->parser->parse($content); assert($parsed !== null); $stmts = $this->traverser->traverseFile($parsed, $filePath); $pretty = $this->printer->prettyPrint($stmts); $pretty = self::pregReplace( '#^(<\?php)?[\s]*(/\*\*?.*?\*/)?[\s]*(declare[\s]*\([\s]*strict_types[\s]*=[\s]*1[\s]*\);)?#s', '', $pretty ); return self::getCodeWrappedIntoNamespace($parsed, $pretty); } /** * Perform a PREG replace, failing with an exception on error. * * @param string $pattern * @param string $replacement * @param string $subject * @param int|null $limit * * @return string */ private static function pregReplace(string $pattern, string $replacement, string $subject, int $limit = null) { $output = @preg_replace($pattern, $replacement, $subject, $limit === null ? -1 : $limit); assert($output !== null); return $output; } /** * Wrap the code into a namespace. * * @param \PhpParser\Node\Stmt[] $parsed * @param string $pretty * * @return string */ private static function getCodeWrappedIntoNamespace(array $parsed, $pretty) { if (self::parsedCodeHasNamespaces($parsed)) { $pretty = self::pregReplace('/^\s*(namespace.*);/im', '${1} {', $pretty, 1)."\n}\n"; } else { $pretty = sprintf("namespace {\n%s\n}\n", $pretty); } return self::pregReplace('/(?