← All changes | vendor/composer/ClassLoader.php +86 -18 3.1.1 → 3.6.1 View file →

		@@ -36,13 +36,15 @@
36	36	* This class is loosely based on the Symfony UniversalClassLoader.
37	37	*
38	38	* @author Fabien Potencier <fabien@symfony.com>
39	39	* @author Jordi Boggiano <j.boggiano@seld.be>
40		- * @see http://www.php-fig.org/psr/psr-0/
41		- * @see http://www.php-fig.org/psr/psr-4/
	40	+ * @see https://www.php-fig.org/psr/psr-0/
	41	+ * @see https://www.php-fig.org/psr/psr-4/
42	42	*/
43	43	class ClassLoader
44	44	{
	45	+ private $vendorDir;
	46	+
45	47	// PSR-4
46	48	private $prefixLengthsPsr4 = array();
47	49	private $prefixDirsPsr4 = array();
48	50	private $fallbackDirsPsr4 = array();
		@@ -52,15 +54,23 @@
52	54	private $fallbackDirsPsr0 = array();
53	55
54	56	private $useIncludePath = false;
55	57	private $classMap = array();
	58	+ private $classMapAuthoritative = false;
	59	+ private $missingClasses = array();
	60	+ private $apcuPrefix;
56	61
57		- private $classMapAuthoritative = false;
	62	+ private static $registeredLoaders = array();
58	63
	64	+ public function __construct($vendorDir = null)
	65	+ {
	66	+ $this->vendorDir = $vendorDir;
	67	+ }
	68	+
59	69	public function getPrefixes()
60	70	{
61	71	if (!empty($this->prefixesPsr0)) {
62		- return call_user_func_array('array_merge', $this->prefixesPsr0);
	72	+ return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
63	73	}
64	74
65	75	return array();
66	76	}
		@@ -271,8 +281,28 @@
271	281	return $this->classMapAuthoritative;
272	282	}
273	283
274	284	/**
	285	+ * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
	286	+ *
	287	+ * @param string|null $apcuPrefix
	288	+ */
	289	+ public function setApcuPrefix($apcuPrefix)
	290	+ {
	291	+ $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
	292	+ }
	293	+
	294	+ /**
	295	+ * The APCu prefix in use, or null if APCu caching is not enabled.
	296	+ *
	297	+ * @return string|null
	298	+ */
	299	+ public function getApcuPrefix()
	300	+ {
	301	+ return $this->apcuPrefix;
	302	+ }
	303	+
	304	+ /**
275	305	* Registers this instance as an autoloader.
276	306	*
277	307	* @param bool $prepend Whether to prepend the autoloader or not
278	308	*/
		@@ -278,8 +308,19 @@
278	308	*/
279	309	public function register($prepend = false)
280	310	{
281	311	spl_autoload_register(array($this, 'loadClass'), true, $prepend);
	312	+
	313	+ if (null === $this->vendorDir) {
	314	+ return;
	315	+ }
	316	+
	317	+ if ($prepend) {
	318	+ self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
	319	+ } else {
	320	+ unset(self::$registeredLoaders[$this->vendorDir]);
	321	+ self::$registeredLoaders[$this->vendorDir] = $this;
	322	+ }
282	323	}
283	324
284	325	/**
285	326	* Unregisters this instance as an autoloader.
		@@ -286,8 +327,12 @@
286	327	*/
287	328	public function unregister()
288	329	{
289	330	spl_autoload_unregister(array($this, 'loadClass'));
	331	+
	332	+ if (null !== $this->vendorDir) {
	333	+ unset(self::$registeredLoaders[$this->vendorDir]);
	334	+ }
290	335	}
291	336
292	337	/**
293	338	* Loads the given class or interface.
		@@ -292,9 +337,9 @@
292	337	/**
293	338	* Loads the given class or interface.
294	339	*
295	340	* @param string $class The name of the class
296		- * @return bool|null True if loaded, null otherwise
	341	+ * @return true|null True if loaded, null otherwise
297	342	*/
298	343	public function loadClass($class)
299	344	{
300	345	if ($file = $this->findFile($class)) {
		@@ -301,8 +346,10 @@
301	346	includeFile($file);
302	347
303	348	return true;
304	349	}
	350	+
	351	+ return null;
305	352	}
306	353
307	354	/**
308	355	* Finds the path to the file where the class is defined.
		@@ -312,36 +359,51 @@
312	359	* @return string|false The path if found, false otherwise
313	360	*/
314	361	public function findFile($class)
315	362	{
316		- // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
317		- if ('\\' == $class[0]) {
318		- $class = substr($class, 1);
319		- }
320		-
321	363	// class map lookup
322	364	if (isset($this->classMap[$class])) {
323	365	return $this->classMap[$class];
324	366	}
325		- if ($this->classMapAuthoritative) {
	367	+ if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
326	368	return false;
327	369	}
	370	+ if (null !== $this->apcuPrefix) {
	371	+ $file = apcu_fetch($this->apcuPrefix.$class, $hit);
	372	+ if ($hit) {
	373	+ return $file;
	374	+ }
	375	+ }
328	376
329	377	$file = $this->findFileWithExtension($class, '.php');
330	378
331	379	// Search for Hack files if we are running on HHVM
332		- if ($file === null && defined('HHVM_VERSION')) {
	380	+ if (false === $file && defined('HHVM_VERSION')) {
333	381	$file = $this->findFileWithExtension($class, '.hh');
334	382	}
335	383
336		- if ($file === null) {
	384	+ if (null !== $this->apcuPrefix) {
	385	+ apcu_add($this->apcuPrefix.$class, $file);
	386	+ }
	387	+
	388	+ if (false === $file) {
337	389	// Remember that this class does not exist.
338		- return $this->classMap[$class] = false;
	390	+ $this->missingClasses[$class] = true;
339	391	}
340	392
341	393	return $file;
342	394	}
343	395
	396	+ /**
	397	+ * Returns the currently registered loaders indexed by their corresponding vendor directories.
	398	+ *
	399	+ * @return self[]
	400	+ */
	401	+ public static function getRegisteredLoaders()
	402	+ {
	403	+ return self::$registeredLoaders;
	404	+ }
	405	+
344	406	private function findFileWithExtension($class, $ext)
345	407	{
346	408	// PSR-4 lookup
347	409	$logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
		@@ -347,12 +409,16 @@
347	409	$logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
348	410
349	411	$first = $class[0];
350	412	if (isset($this->prefixLengthsPsr4[$first])) {
351		- foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
352		- if (0 === strpos($class, $prefix)) {
353		- foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
354		- if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
	413	+ $subPath = $class;
	414	+ while (false !== $lastPos = strrpos($subPath, '\\')) {
	415	+ $subPath = substr($subPath, 0, $lastPos);
	416	+ $search = $subPath . '\\';
	417	+ if (isset($this->prefixDirsPsr4[$search])) {
	418	+ $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
	419	+ foreach ($this->prefixDirsPsr4[$search] as $dir) {
	420	+ if (file_exists($file = $dir . $pathEnd)) {
355	421	return $file;
356	422	}
357	423	}
358	424	}
		@@ -398,8 +464,10 @@
398	464	// PSR-0 include paths.
399	465	if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
400	466	return $file;
401	467	}
	468	+
	469	+ return false;
402	470	}
403	471	}
404	472
405	473	/**