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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the humbug/php-scoper package. |
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* |
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* Copyright (c) 2017 Théo FIDRY <[email protected]>, |
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* Pádraic Brady <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Humbug\PhpScoper; |
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use ReflectionException; |
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use ReflectionFunction; |
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use Roave\BetterReflection\Identifier\Exception\InvalidIdentifierName; |
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use Roave\BetterReflection\Reflector\ClassReflector; |
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use Roave\BetterReflection\Reflector\Exception\IdentifierNotFound; |
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use function array_key_exists; |
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use function array_values; |
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use function get_defined_constants; |
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use function strtoupper; |
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/** |
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* Main class used to determine if a given symbol is internal or not. As of the time of writing, it leverages |
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* Roave\BetterReflection to determine if given class is internal or not which allows to do reflection:. |
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* |
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* - Without loading the code scanned code at all |
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* - Do reliable reflection against non-loaded APIs, i.e. a class from a non-loaded extension will properly appear |
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* as internal whereas the regular reflection would not. |
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* |
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* However Roave\BetterReflection is still not supporting constants and functions hence requires some hacks here |
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* meanwhile. |
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* |
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* @private |
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*/ |
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final class Reflector |
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{ |
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private const KNOWN_INTERNAL_CONSTANTS = [ |
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'CURLM_ADDED_ALREADY' => true, |
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'JSON_UNESCAPED_LINE_TERMINATORS' => true, |
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'OPENSSL_DONT_ZERO_PAD_KEY' => true, |
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'PHP_FD_SETSIZE' => true, |
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'PHP_INT_MIN' => true, |
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'PHP_OS_FAMILY' => true, |
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]; |
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private const KNOWN_INTERNAL_FUNCTIONS = [ |
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'deflate_add' => true, |
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'deflate_init' => true, |
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'error_clear_last' => true, |
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'ftp_append' => true, |
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'hash_hkdf' => true, |
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'inflate_add' => true, |
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'inflate_init' => true, |
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'intdiv' => true, |
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'is_iterable' => true, |
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'openssl_pkcs7_read' => true, |
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'pcntl_signal_get_handler' => true, |
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'preg_replace_callback_array' => true, |
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'sapi_windows_vt100_support' => true, |
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'socket_export_stream' => true, |
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'spl_object_id' => true, |
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'stream_isatty' => true, |
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'utf8_decode' => true, |
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'utf8_encode' => true, |
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]; |
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private $classReflector; |
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private $constants; |
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public function __construct(ClassReflector $classReflector) |
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{ |
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$this->classReflector = $classReflector; |
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} |
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public function isClassInternal(string $name): bool |
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{ |
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try { |
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return $this->classReflector->reflect($name)->isInternal(); |
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1 |
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} catch (IdentifierNotFound | InvalidIdentifierName $exception) { |
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return false; |
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} |
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} |
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public function isFunctionInternal(string $name): bool |
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{ |
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if (array_key_exists($name, self::KNOWN_INTERNAL_FUNCTIONS)) { |
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return true; |
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} |
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try { |
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return (new ReflectionFunction($name))->isInternal(); |
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} catch (ReflectionException $exception) { |
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return false; |
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} |
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} |
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public function isConstantInternal(string $name): bool |
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{ |
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if (array_key_exists($name, self::KNOWN_INTERNAL_CONSTANTS)) { |
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return true; |
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} |
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return array_key_exists(strtoupper($name), $this->getInternalConstants()); |
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} |
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private function getInternalConstants(): array |
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{ |
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if (null !== $this->constants) { |
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return $this->constants; |
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} |
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$constants = get_defined_constants(true); |
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unset($constants['user']); |
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$this->constants = array_merge(...array_values($constants)); |
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return $this->constants; |
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} |
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} |
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humbug /
php-scoper
