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<?php |
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/* HEADER */ // phpcs:ignore |
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use Automattic\Jetpack\Autoloader\AutoloadGenerator; |
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/** |
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* This class selects the package version for the autoloader. |
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*/ |
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class Autoloader_Handler { |
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/** |
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* The PHP_Autoloader instance. |
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* |
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* @var PHP_Autoloader |
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*/ |
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private $php_autoloader; |
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/** |
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* The Hook_Manager instance. |
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* |
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* @var Hook_Manager |
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*/ |
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private $hook_manager; |
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/** |
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* The Manifest_Reader instance. |
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* |
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* @var Manifest_Reader |
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*/ |
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private $manifest_reader; |
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/** |
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* The Version_Selector instance. |
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* |
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* @var Version_Selector |
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*/ |
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private $version_selector; |
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/** |
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* The constructor. |
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* |
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* @param PHP_Autoloader $php_autoloader The PHP_Autoloader instance. |
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* @param Hook_Manager $hook_manager The Hook_Manager instance. |
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* @param Manifest_Reader $manifest_reader The Manifest_Reader instance. |
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* @param Version_Selector $version_selector The Version_Selector instance. |
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*/ |
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public function __construct( $php_autoloader, $hook_manager, $manifest_reader, $version_selector ) { |
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$this->php_autoloader = $php_autoloader; |
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$this->hook_manager = $hook_manager; |
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$this->manifest_reader = $manifest_reader; |
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$this->version_selector = $version_selector; |
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} |
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/** |
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* Checks to see whether or not an autoloader is currently in the process of initializing. |
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* |
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* @return bool |
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*/ |
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public function is_initializing() { |
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// If no version has been set it means that no autoloader has started initializing yet. |
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global $jetpack_autoloader_latest_version; |
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if ( ! isset( $jetpack_autoloader_latest_version ) ) { |
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return false; |
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} |
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// When the version is set but the classmap is not it ALWAYS means that this is the |
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// latest autoloader and is being included by an older one. |
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global $jetpack_packages_classmap; |
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if ( empty( $jetpack_packages_classmap ) ) { |
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return true; |
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} |
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// Version 2.4.0 added a new global and altered the reset semantics. We need to check |
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// the other global as well since it may also point at initialization. |
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// Note: We don't need to check for the class first because every autoloader that |
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// will set the latest version global requires this class in the classmap. |
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$replacing_version = $jetpack_packages_classmap[ AutoloadGenerator::class ]['version']; |
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if ( $this->version_selector->is_dev_version( $replacing_version ) || version_compare( $replacing_version, '2.4.0.0', '>=' ) ) { |
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global $jetpack_autoloader_loader; |
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if ( ! isset( $jetpack_autoloader_loader ) ) { |
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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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* Activates an autoloader using the given plugins and activates it. |
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* |
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* @param string[] $plugins The plugins to initialize the autoloader for. |
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*/ |
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public function activate_autoloader( $plugins ) { |
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global $jetpack_packages_psr4; |
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$jetpack_packages_psr4 = array(); |
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$this->manifest_reader->read_manifests( $plugins, 'vendor/composer/jetpack_autoload_psr4.php', $jetpack_packages_psr4 ); |
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global $jetpack_packages_classmap; |
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$jetpack_packages_classmap = array(); |
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$this->manifest_reader->read_manifests( $plugins, 'vendor/composer/jetpack_autoload_classmap.php', $jetpack_packages_classmap ); |
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global $jetpack_packages_filemap; |
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$jetpack_packages_filemap = array(); |
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$this->manifest_reader->read_manifests( $plugins, 'vendor/composer/jetpack_autoload_filemap.php', $jetpack_packages_filemap ); |
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$loader = new Version_Loader( |
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$this->version_selector, |
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$jetpack_packages_classmap, |
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$jetpack_packages_psr4, |
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$jetpack_packages_filemap |
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); |
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$this->php_autoloader->register_autoloader( $loader ); |
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// Now that the autoloader is active we can load the filemap. |
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$loader->load_filemap(); |
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} |
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/** |
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* Resets the active autoloader and all related global state. |
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*/ |
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public function reset_autoloader() { |
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$this->php_autoloader->unregister_autoloader(); |
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$this->hook_manager->reset(); |
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// Clear all of the autoloader globals so that older autoloaders don't do anything strange. |
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global $jetpack_autoloader_latest_version; |
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$jetpack_autoloader_latest_version = null; |
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global $jetpack_packages_classmap; |
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$jetpack_packages_classmap = array(); // Must be array to avoid exceptions in old autoloaders! |
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global $jetpack_packages_psr4; |
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$jetpack_packages_psr4 = array(); // Must be array to avoid exceptions in old autoloaders! |
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global $jetpack_packages_filemap; |
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$jetpack_packages_filemap = array(); // Must be array to avoid exceptions in old autoloaders! |
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} |
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} |
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