Differential D19688 Diff 47062 src/__phutil_library_init__.php

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src/__phutil_library_init__.php

	<?php			<?php

				define('__LIBPHUTIL__', true);

				$root = dirname(__FILE__);
				require_once $root.'/moduleutils/core.php';
				require_once $root.'/moduleutils/PhutilBootloader.php';
				require_once $root.'/moduleutils/PhutilBootloaderException.php';
				require_once $root.'/moduleutils/PhutilLibraryConflictException.php';

				function __phutil_autoload($class_name) {
				// Occurs in PHP 5.2 with `call_user_func(array($this, 'self::f'))`.
				if ($class_name === 'self' \|\| $class_name === 'parent') {
				return;
				}

				try {
				$loader = new PhutilSymbolLoader();
				$symbols = $loader
				->setType('class')
				->setName($class_name)
				->selectAndLoadSymbols();

				if (!$symbols) {
				throw new PhutilMissingSymbolException(
				$class_name,
				pht('class or interface'),
				pht(
				"the class or interface '%s' is not defined in the library ".
				"map for any loaded %s library.",
				$class_name,
				'phutil'));
				}
				} catch (PhutilMissingSymbolException $ex) {
				$should_throw = true;

				foreach (debug_backtrace() as $backtrace) {
				if (empty($backtrace['function'])) {
				continue;
				}

				switch ($backtrace['function']) {
				case 'class_exists':
				case 'interface_exists':
				case 'method_exists':
				case 'property_exists':
				case 'trait_exists':
				$should_throw = false;
				break;
				}
				}

				if (!$should_throw) {
				return false;
				}

				// If there are other SPL autoloaders installed, we need to give them a
				// chance to load the class. Throw the exception if we're the last
				// autoloader; if not, swallow it and let them take a shot.
				$autoloaders = spl_autoload_functions();
				$last = end($autoloaders);
				if ($last == __FUNCTION__) {
				throw $ex;
				}
				}
				}

				spl_autoload_register('__phutil_autoload', $throw = true);

	phutil_register_library('arcanist', __FILE__);			phutil_register_library('arcanist', __FILE__);