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- <?php
- namespace Composer\Autoload;
- class ClassLoader
- {
-
- private static $includeFile;
-
- private $vendorDir;
-
-
- private $prefixLengthsPsr4 = array();
-
- private $prefixDirsPsr4 = array();
-
- private $fallbackDirsPsr4 = array();
-
-
- private $prefixesPsr0 = array();
-
- private $fallbackDirsPsr0 = array();
-
- private $useIncludePath = false;
-
- private $classMap = array();
-
- private $classMapAuthoritative = false;
-
- private $missingClasses = array();
-
- private $apcuPrefix;
-
- private static $registeredLoaders = array();
-
- public function __construct($vendorDir = null)
- {
- $this->vendorDir = $vendorDir;
- self::initializeIncludeClosure();
- }
-
- public function getPrefixes()
- {
- if (!empty($this->prefixesPsr0)) {
- return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
- }
- return array();
- }
-
- public function getPrefixesPsr4()
- {
- return $this->prefixDirsPsr4;
- }
-
- public function getFallbackDirs()
- {
- return $this->fallbackDirsPsr0;
- }
-
- public function getFallbackDirsPsr4()
- {
- return $this->fallbackDirsPsr4;
- }
-
- public function getClassMap()
- {
- return $this->classMap;
- }
-
- public function addClassMap(array $classMap)
- {
- if ($this->classMap) {
- $this->classMap = array_merge($this->classMap, $classMap);
- } else {
- $this->classMap = $classMap;
- }
- }
-
- public function add($prefix, $paths, $prepend = false)
- {
- if (!$prefix) {
- if ($prepend) {
- $this->fallbackDirsPsr0 = array_merge(
- (array) $paths,
- $this->fallbackDirsPsr0
- );
- } else {
- $this->fallbackDirsPsr0 = array_merge(
- $this->fallbackDirsPsr0,
- (array) $paths
- );
- }
- return;
- }
- $first = $prefix[0];
- if (!isset($this->prefixesPsr0[$first][$prefix])) {
- $this->prefixesPsr0[$first][$prefix] = (array) $paths;
- return;
- }
- if ($prepend) {
- $this->prefixesPsr0[$first][$prefix] = array_merge(
- (array) $paths,
- $this->prefixesPsr0[$first][$prefix]
- );
- } else {
- $this->prefixesPsr0[$first][$prefix] = array_merge(
- $this->prefixesPsr0[$first][$prefix],
- (array) $paths
- );
- }
- }
-
- public function addPsr4($prefix, $paths, $prepend = false)
- {
- if (!$prefix) {
-
- if ($prepend) {
- $this->fallbackDirsPsr4 = array_merge(
- (array) $paths,
- $this->fallbackDirsPsr4
- );
- } else {
- $this->fallbackDirsPsr4 = array_merge(
- $this->fallbackDirsPsr4,
- (array) $paths
- );
- }
- } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
-
- $length = strlen($prefix);
- if ('\\' !== $prefix[$length - 1]) {
- throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
- }
- $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
- $this->prefixDirsPsr4[$prefix] = (array) $paths;
- } elseif ($prepend) {
-
- $this->prefixDirsPsr4[$prefix] = array_merge(
- (array) $paths,
- $this->prefixDirsPsr4[$prefix]
- );
- } else {
-
- $this->prefixDirsPsr4[$prefix] = array_merge(
- $this->prefixDirsPsr4[$prefix],
- (array) $paths
- );
- }
- }
-
- public function set($prefix, $paths)
- {
- if (!$prefix) {
- $this->fallbackDirsPsr0 = (array) $paths;
- } else {
- $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
- }
- }
-
- public function setPsr4($prefix, $paths)
- {
- if (!$prefix) {
- $this->fallbackDirsPsr4 = (array) $paths;
- } else {
- $length = strlen($prefix);
- if ('\\' !== $prefix[$length - 1]) {
- throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
- }
- $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
- $this->prefixDirsPsr4[$prefix] = (array) $paths;
- }
- }
-
- public function setUseIncludePath($useIncludePath)
- {
- $this->useIncludePath = $useIncludePath;
- }
-
- public function getUseIncludePath()
- {
- return $this->useIncludePath;
- }
-
- public function setClassMapAuthoritative($classMapAuthoritative)
- {
- $this->classMapAuthoritative = $classMapAuthoritative;
- }
-
- public function isClassMapAuthoritative()
- {
- return $this->classMapAuthoritative;
- }
-
- public function setApcuPrefix($apcuPrefix)
- {
- $this->apcuPrefix = function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN) ? $apcuPrefix : null;
- }
-
- public function getApcuPrefix()
- {
- return $this->apcuPrefix;
- }
-
- public function register($prepend = false)
- {
- spl_autoload_register(array($this, 'loadClass'), true, $prepend);
- if (null === $this->vendorDir) {
- return;
- }
- if ($prepend) {
- self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
- } else {
- unset(self::$registeredLoaders[$this->vendorDir]);
- self::$registeredLoaders[$this->vendorDir] = $this;
- }
- }
-
- public function unregister()
- {
- spl_autoload_unregister(array($this, 'loadClass'));
- if (null !== $this->vendorDir) {
- unset(self::$registeredLoaders[$this->vendorDir]);
- }
- }
-
- public function loadClass($class)
- {
- if ($file = $this->findFile($class)) {
- (self::$includeFile)($file);
- return true;
- }
- return null;
- }
-
- public function findFile($class)
- {
-
- if (isset($this->classMap[$class])) {
- return $this->classMap[$class];
- }
- if ($this->classMapAuthoritative || isset($this->missingClasses[$class])) {
- return false;
- }
- if (null !== $this->apcuPrefix) {
- $file = apcu_fetch($this->apcuPrefix.$class, $hit);
- if ($hit) {
- return $file;
- }
- }
- $file = $this->findFileWithExtension($class, '.php');
-
- if (false === $file && defined('HHVM_VERSION')) {
- $file = $this->findFileWithExtension($class, '.hh');
- }
- if (null !== $this->apcuPrefix) {
- apcu_add($this->apcuPrefix.$class, $file);
- }
- if (false === $file) {
-
- $this->missingClasses[$class] = true;
- }
- return $file;
- }
-
- public static function getRegisteredLoaders()
- {
- return self::$registeredLoaders;
- }
-
- private function findFileWithExtension($class, $ext)
- {
-
- $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
- $first = $class[0];
- if (isset($this->prefixLengthsPsr4[$first])) {
- $subPath = $class;
- while (false !== $lastPos = strrpos($subPath, '\\')) {
- $subPath = substr($subPath, 0, $lastPos);
- $search = $subPath . '\\';
- if (isset($this->prefixDirsPsr4[$search])) {
- $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
- foreach ($this->prefixDirsPsr4[$search] as $dir) {
- if (file_exists($file = $dir . $pathEnd)) {
- return $file;
- }
- }
- }
- }
- }
-
- foreach ($this->fallbackDirsPsr4 as $dir) {
- if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
- return $file;
- }
- }
-
- if (false !== $pos = strrpos($class, '\\')) {
-
- $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
- . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
- } else {
-
- $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
- }
- if (isset($this->prefixesPsr0[$first])) {
- foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
- if (0 === strpos($class, $prefix)) {
- foreach ($dirs as $dir) {
- if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
- return $file;
- }
- }
- }
- }
- }
-
- foreach ($this->fallbackDirsPsr0 as $dir) {
- if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
- return $file;
- }
- }
-
- if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
- return $file;
- }
- return false;
- }
- private static function initializeIncludeClosure(): void
- {
- if (self::$includeFile !== null) {
- return;
- }
-
- self::$includeFile = static function($file) {
- include $file;
- };
- }
- }
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