← All changes | vendor/composer/ClassLoader.php +74 -16 10 → 11.5 View file →

		@@ -12,12 +12,10 @@
12	12
13	13	namespace Composer\Autoload;
14	14
15	15	/**
16		- * ClassLoader implements a PSR-0 class loader
	16	+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
17	17	*
18		- * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
19		- *
20	18	* $loader = new \Composer\Autoload\ClassLoader();
21	19	*
22	20	* // register classes with namespaces
23	21	* $loader->add('Symfony\Component', __DIR__.'/component');
		@@ -38,8 +36,10 @@
38	36	* This class is loosely based on the Symfony UniversalClassLoader.
39	37	*
40	38	* @author Fabien Potencier <fabien@symfony.com>
41	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/
42	42	*/
43	43	class ClassLoader
44	44	{
45	45	// PSR-4
		@@ -52,8 +52,11 @@
52	52	private $fallbackDirsPsr0 = array();
53	53
54	54	private $useIncludePath = false;
55	55	private $classMap = array();
	56	+ private $classMapAuthoritative = false;
	57	+ private $missingClasses = array();
	58	+ private $apcuPrefix;
56	59
57	60	public function getPrefixes()
58	61	{
59	62	if (!empty($this->prefixesPsr0)) {
		@@ -144,9 +147,9 @@
144	147	* Registers a set of PSR-4 directories for a given namespace, either
145	148	* appending or prepending to the ones previously set for this namespace.
146	149	*
147	150	* @param string $prefix The prefix/namespace, with trailing '\\'
148		- * @param array|string $paths The PSR-0 base directories
	151	+ * @param array|string $paths The PSR-4 base directories
149	152	* @param bool $prepend Whether to prepend the directories
150	153	*
151	154	* @throws \InvalidArgumentException
152	155	*/
		@@ -248,8 +251,49 @@
248	251	return $this->useIncludePath;
249	252	}
250	253
251	254	/**
	255	+ * Turns off searching the prefix and fallback directories for classes
	256	+ * that have not been registered with the class map.
	257	+ *
	258	+ * @param bool $classMapAuthoritative
	259	+ */
	260	+ public function setClassMapAuthoritative($classMapAuthoritative)
	261	+ {
	262	+ $this->classMapAuthoritative = $classMapAuthoritative;
	263	+ }
	264	+
	265	+ /**
	266	+ * Should class lookup fail if not found in the current class map?
	267	+ *
	268	+ * @return bool
	269	+ */
	270	+ public function isClassMapAuthoritative()
	271	+ {
	272	+ return $this->classMapAuthoritative;
	273	+ }
	274	+
	275	+ /**
	276	+ * APCu prefix to use to cache found/not-found classes, if the extension is enabled.
	277	+ *
	278	+ * @param string|null $apcuPrefix
	279	+ */
	280	+ public function setApcuPrefix($apcuPrefix)
	281	+ {
	282	+ $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
	283	+ }
	284	+
	285	+ /**
	286	+ * The APCu prefix in use, or null if APCu caching is not enabled.
	287	+ *
	288	+ * @return string|null
	289	+ */
	290	+ public function getApcuPrefix()
	291	+ {
	292	+ return $this->apcuPrefix;
	293	+ }
	294	+
	295	+ /**
252	296	* Registers this instance as an autoloader.
253	297	*
254	298	* @param bool $prepend Whether to prepend the autoloader or not
255	299	*/
		@@ -289,28 +333,36 @@
289	333	* @return string|false The path if found, false otherwise
290	334	*/
291	335	public function findFile($class)
292	336	{
293		- // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
294		- if ('\\' == $class[0]) {
295		- $class = substr($class, 1);
296		- }
297		-
298	337	// class map lookup
299	338	if (isset($this->classMap[$class])) {
300	339	return $this->classMap[$class];
301	340	}
	341	+ if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
	342	+ return false;
	343	+ }
	344	+ if (null !== $this->apcuPrefix) {
	345	+ $file = apcu_fetch($this->apcuPrefix.$class, $hit);
	346	+ if ($hit) {
	347	+ return $file;
	348	+ }
	349	+ }
302	350
303	351	$file = $this->findFileWithExtension($class, '.php');
304	352
305	353	// Search for Hack files if we are running on HHVM
306		- if ($file === null && defined('HHVM_VERSION')) {
	354	+ if (false === $file && defined('HHVM_VERSION')) {
307	355	$file = $this->findFileWithExtension($class, '.hh');
308	356	}
309	357
310		- if ($file === null) {
	358	+ if (null !== $this->apcuPrefix) {
	359	+ apcu_add($this->apcuPrefix.$class, $file);
	360	+ }
	361	+
	362	+ if (false === $file) {
311	363	// Remember that this class does not exist.
312		- return $this->classMap[$class] = false;
	364	+ $this->missingClasses[$class] = true;
313	365	}
314	366
315	367	return $file;
316	368	}
		@@ -321,12 +373,16 @@
321	373	$logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
322	374
323	375	$first = $class[0];
324	376	if (isset($this->prefixLengthsPsr4[$first])) {
325		- foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
326		- if (0 === strpos($class, $prefix)) {
327		- foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
328		- if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
	377	+ $subPath = $class;
	378	+ while (false !== $lastPos = strrpos($subPath, '\\')) {
	379	+ $subPath = substr($subPath, 0, $lastPos);
	380	+ $search = $subPath . '\\';
	381	+ if (isset($this->prefixDirsPsr4[$search])) {
	382	+ $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
	383	+ foreach ($this->prefixDirsPsr4[$search] as $dir) {
	384	+ if (file_exists($file = $dir . $pathEnd)) {
329	385	return $file;
330	386	}
331	387	}
332	388	}
		@@ -372,8 +428,10 @@
372	428	// PSR-0 include paths.
373	429	if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
374	430	return $file;
375	431	}
	432	+
	433	+ return false;
376	434	}
377	435	}
378	436
379	437	/**