custom-facebook-feed
/
vendor
/
php-di
/
phpdoc-reader
/
src
/
PhpDocReader
/
PhpParser
/
UseStatementParser.php
UseStatementParser.php
| 1 | <?php |
| 2 | |
| 3 | |
| 4 | namespace FacebookFeed\Vendor\PhpDocReader\PhpParser; |
| 5 | |
| 6 | use SplFileObject; |
| 7 | /** |
| 8 | * Parses a file for "use" declarations. |
| 9 | * |
| 10 | * Class taken and adapted from doctrine/annotations to avoid pulling the whole package. |
| 11 | * |
| 12 | * Authors: Fabien Potencier <fabien@symfony.com> and Christian Kaps <christian.kaps@mohiva.com> |
| 13 | */ |
| 14 | class UseStatementParser |
| 15 | { |
| 16 | /** |
| 17 | * @return array A list with use statements in the form (Alias => FQN). |
| 18 | */ |
| 19 | public function parseUseStatements(\ReflectionClass $class): array |
| 20 | { |
| 21 | $filename = $class->getFilename(); |
| 22 | if ($filename === \false) { |
| 23 | return []; |
| 24 | } |
| 25 | $content = $this->getFileContent($filename, $class->getStartLine()); |
| 26 | if ($content === null) { |
| 27 | return []; |
| 28 | } |
| 29 | $namespace = preg_quote($class->getNamespaceName(), '/'); |
| 30 | $content = preg_replace('/^.*?(\bnamespace\s+' . $namespace . '\s*[;{].*)$/s', '\1', $content); |
| 31 | $tokenizer = new TokenParser('<?php ' . $content); |
| 32 | return $tokenizer->parseUseStatements($class->getNamespaceName()); |
| 33 | } |
| 34 | /** |
| 35 | * Gets the content of the file right up to the given line number. |
| 36 | * |
| 37 | * @param string $filename The name of the file to load. |
| 38 | * @param int $lineNumber The number of lines to read from file. |
| 39 | */ |
| 40 | private function getFileContent(string $filename, int $lineNumber): string |
| 41 | { |
| 42 | if (!is_file($filename)) { |
| 43 | throw new \RuntimeException("Unable to read file {$filename}"); |
| 44 | } |
| 45 | $content = ''; |
| 46 | $lineCnt = 0; |
| 47 | $file = new SplFileObject($filename); |
| 48 | while (!$file->eof()) { |
| 49 | if ($lineCnt++ === $lineNumber) { |
| 50 | break; |
| 51 | } |
| 52 | $content .= $file->fgets(); |
| 53 | } |
| 54 | return $content; |
| 55 | } |
| 56 | } |
| 57 |