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<?php |
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/** |
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* |
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* This file is part of Phpfastcache. |
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* |
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* @license MIT License (MIT) |
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* |
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* For full copyright and license information, please see the docs/CREDITS.txt and LICENCE files. |
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* |
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* @author Georges.L (Geolim4) <[email protected]> |
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* @author Contributors https://github.com/PHPSocialNetwork/phpfastcache/graphs/contributors |
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*/ |
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declare(strict_types=1); |
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namespace Phpfastcache\Util; |
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use RecursiveDirectoryIterator; |
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use RecursiveIteratorIterator; |
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trait ClassNamespaceResolverTrait |
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{ |
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/** |
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* @var array<string, string> |
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*/ |
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protected static array $namespaces = []; |
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/** |
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* Iterate over all files in the given directory searching for classes. |
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* |
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* NOTICE: This method has been borrowed from Symfony ClassLoader 3.4 since they |
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* deprecated the whole component as of SF4. Our thanks to them. |
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* |
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* @param string $dir The directory to search in or an iterator |
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* |
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* @return array<string, string> A class map array |
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*/ |
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protected static function createClassMap(string $dir): array |
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{ |
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$dirIterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir)); |
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$map = []; |
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foreach ($dirIterator as $file) { |
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if (!$file->isFile()) { |
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continue; |
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} |
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$path = $file->getRealPath() ?: $file->getPathname(); |
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if ('php' !== pathinfo($path, PATHINFO_EXTENSION)) { |
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continue; |
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} |
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$classes = self::findClasses($path); |
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gc_mem_caches(); |
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foreach ($classes as $class) { |
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$map[$class] = $path; |
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} |
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} |
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return $map; |
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} |
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/** |
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* Extract the classes in the given file. |
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* |
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* NOTICE: This method has been borrowed from Symfony ClassLoader 3.4 since they |
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* deprecated the whole component as of SF4. Our thanks to them. |
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* |
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* @param string $path The file to check |
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* |
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* @return string[] The found classes |
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* |
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* @SuppressWarnings(PHPMD.CyclomaticComplexity) |
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*/ |
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protected static function findClasses(string $path): array |
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{ |
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$contents = file_get_contents($path); |
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$tokens = token_get_all($contents); |
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$classes = []; |
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$namespace = ''; |
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for ($i = 0; isset($tokens[$i]); ++$i) { |
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$token = $tokens[$i]; |
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if (!isset($token[1])) { |
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continue; |
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} |
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$class = ''; |
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switch ($token[0]) { |
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case T_NAMESPACE: |
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$namespace = self::buildTokenNamespace($i, $tokens); |
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break; |
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case T_CLASS: |
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case T_INTERFACE: |
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case T_TRAIT: |
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$classes = self::buildTokenClasses($namespace, $class, $classes, $i, $tokens); |
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break; |
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default: |
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break; |
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} |
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} |
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return $classes; |
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} |
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/** |
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* @param string $namespace |
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* @param string $class |
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* @param string[] $classes |
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* @param int $index |
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* @param array<array<mixed>|string> $tokens |
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* @return string[] |
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*/ |
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protected static function buildTokenClasses(string $namespace, string $class, array $classes, int $index, array $tokens): array |
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{ |
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// Skip usage of ::class constant |
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$isClassConstant = false; |
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for ($j = $index - 1; $j > 0; --$j) { |
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if (!isset($tokens[$j][1])) { |
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break; |
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} |
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if (T_DOUBLE_COLON === $tokens[$j][0]) { |
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$isClassConstant = true; |
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break; |
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} |
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if (!\in_array($tokens[$j][0], [T_WHITESPACE, T_DOC_COMMENT, T_COMMENT], false)) { |
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break; |
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} |
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} |
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if ($isClassConstant) { |
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return $classes; |
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} |
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// Find the classname |
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while (isset($tokens[++$index][1])) { |
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$t = $tokens[$index]; |
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if (T_STRING === $t[0]) { |
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$class .= $t[1]; |
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} elseif ('' !== $class && T_WHITESPACE === $t[0]) { |
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break; |
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} |
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} |
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return \array_merge($classes, [\ltrim($namespace . $class, '\\')]); |
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} |
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/** |
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* @param int $index |
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* @param array<array<mixed>|string> $tokens |
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* @return string |
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*/ |
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protected static function buildTokenNamespace(int $index, array $tokens): string |
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{ |
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$namespace = ''; |
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// If there is a namespace, extract it (PHP 8 test) |
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if (\defined('T_NAME_QUALIFIED')) { |
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while (isset($tokens[++$index][1])) { |
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if ($tokens[$index][0] === T_NAME_QUALIFIED) { |
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$namespace = $tokens[$index][1]; |
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break; |
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} |
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} |
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} else { |
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while (isset($tokens[++$index][1])) { |
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if (\in_array($tokens[$index][0], [T_STRING, T_NS_SEPARATOR], true)) { |
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$namespace .= $tokens[$index][1]; |
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} |
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} |
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} |
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return $namespace . '\\'; |
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} |
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/** |
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* @return string |
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*/ |
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public static function getClassNamespace(): string |
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{ |
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if (!isset(self::$namespaces[static::class])) { |
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self::$namespaces[static::class] = substr(static::class, 0, strrpos(static::class, '\\')); |
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} |
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return self::$namespaces[static::class]; |
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} |
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/** |
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* @return string |
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*/ |
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public function getClassName(): string |
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{ |
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return static::class; |
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} |
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} |
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PHPSocialNetwork /
phpfastcache
