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<?php |
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/** |
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* This file is part of Stream package. |
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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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declare(strict_types=1); |
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namespace Serafim\Stream; |
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use Composer\Autoload\ClassLoader as Composer; |
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use Serafim\Stream\Exception\StreamCreatingException; |
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use Serafim\Stream\Filter\Filter; |
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use Serafim\Stream\Filter\FilterInterface; |
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/** |
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* @property Filter $when |
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*/ |
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class ClassLoader |
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{ |
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/** |
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* @var Composer |
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*/ |
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private Composer $composer; |
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/** |
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* @var array<FilterInterface> |
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*/ |
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private array $filters = []; |
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/** |
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* @var string |
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*/ |
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private string $vendorDir; |
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/** |
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* @param Composer $composer |
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* @param bool $register |
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*/ |
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public function __construct(Composer $composer, bool $register = true) |
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{ |
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$this->composer = $composer; |
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$this->vendorDir = $this->getVendorDir($composer); |
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if ($register) { |
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$this->register(); |
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} |
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} |
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/** |
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* @param Composer $composer |
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* @return string |
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*/ |
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private function getVendorDir(Composer $composer): string |
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{ |
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$dirname = \dirname((new \ReflectionObject($composer))->getFileName(), 2); |
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return \str_replace('\\', '/', $dirname); |
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} |
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/** |
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* @return $this |
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*/ |
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public function register(): self |
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{ |
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\spl_autoload_register([$this, 'loadClass'], true, true); |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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public function unregister(): self |
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{ |
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\spl_autoload_unregister([$this, 'loadClass']); |
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return $this; |
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} |
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/** |
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* @return FilterInterface |
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* @throws StreamCreatingException |
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*/ |
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public function when(): FilterInterface |
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{ |
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return $this->filters[] = new Filter($this->vendorDir); |
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} |
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/** |
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* @param string $class |
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* @return bool |
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* @throws \Throwable |
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*/ |
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public function loadClass(string $class): bool |
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{ |
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if ($this->isSameNamespace($class)) { |
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return false; |
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} |
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if (! \is_string($file = $this->composer->findFile($class))) { |
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return false; |
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} |
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$file = \str_replace('\\', '/', \realpath($file)); |
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foreach ($this->filters as $filter) { |
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if ($filter->match($class, $file)) { |
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/** @noinspection PhpIncludeInspection */ |
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require $filter->pathname($file); |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* @param string $class |
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* @return bool |
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*/ |
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private function isSameNamespace(string $class): bool |
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{ |
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return \strpos($class, __NAMESPACE__) === 0; |
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} |
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/** |
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* @param string $name |
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* @return Filter|null |
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* @throws StreamCreatingException |
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*/ |
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public function __get(string $name) |
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{ |
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if ($name === 'when') { |
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return $this->when(); |
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} |
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return null; |
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} |
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} |
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