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@@ -37,57 +37,130 @@ namespace Composer\Autoload;
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*
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* @author Fabien Potencier <[email protected]>
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* @author Jordi Boggiano <[email protected]>
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- * @see http://www.php-fig.org/psr/psr-0/
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- * @see http://www.php-fig.org/psr/psr-4/
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+ * @see https://www.php-fig.org/psr/psr-0/
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+ * @see https://www.php-fig.org/psr/psr-4/
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*/
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class ClassLoader
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{
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+ /** @var ?string */
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+ private $vendorDir;
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+
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// PSR-4
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+ /**
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+ * @var array[]
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+ * @psalm-var array<string, array<string, int>>
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+ */
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private $prefixLengthsPsr4 = array();
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+ /**
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+ * @var array[]
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+ * @psalm-var array<string, array<int, string>>
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+ */
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private $prefixDirsPsr4 = array();
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+ /**
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+ * @var array[]
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+ * @psalm-var array<string, string>
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+ */
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private $fallbackDirsPsr4 = array();
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// PSR-0
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+ /**
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+ * @var array[]
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+ * @psalm-var array<string, array<string, string[]>>
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+ */
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private $prefixesPsr0 = array();
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+ /**
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+ * @var array[]
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+ * @psalm-var array<string, string>
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+ */
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private $fallbackDirsPsr0 = array();
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+ /** @var bool */
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private $useIncludePath = false;
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+
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+ /**
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+ * @var string[]
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+ * @psalm-var array<string, string>
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+ */
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private $classMap = array();
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+
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+ /** @var bool */
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private $classMapAuthoritative = false;
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+
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+ /**
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+ * @var bool[]
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+ * @psalm-var array<string, bool>
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+ */
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private $missingClasses = array();
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+
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+ /** @var ?string */
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private $apcuPrefix;
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+ /**
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+ * @var self[]
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+ */
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+ private static $registeredLoaders = array();
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+
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+ /**
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+ * @param ?string $vendorDir
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+ */
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+ public function __construct($vendorDir = null)
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+ {
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+ $this->vendorDir = $vendorDir;
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+ }
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+
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+ /**
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+ * @return string[]
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+ */
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public function getPrefixes()
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{
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if (!empty($this->prefixesPsr0)) {
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- return call_user_func_array('array_merge', $this->prefixesPsr0);
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+ return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
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}
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return array();
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}
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+ /**
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+ * @return array[]
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+ * @psalm-return array<string, array<int, string>>
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+ */
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public function getPrefixesPsr4()
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{
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return $this->prefixDirsPsr4;
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}
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+ /**
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+ * @return array[]
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+ * @psalm-return array<string, string>
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+ */
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public function getFallbackDirs()
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{
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return $this->fallbackDirsPsr0;
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}
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+ /**
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+ * @return array[]
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+ * @psalm-return array<string, string>
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+ */
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public function getFallbackDirsPsr4()
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{
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return $this->fallbackDirsPsr4;
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}
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+ /**
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+ * @return string[] Array of classname => path
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+ * @psalm-var array<string, string>
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+ */
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public function getClassMap()
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{
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return $this->classMap;
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}
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/**
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- * @param array $classMap Class to filename map
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+ * @param string[] $classMap Class to filename map
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+ * @psalm-param array<string, string> $classMap
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+ *
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+ * @return void
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*/
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public function addClassMap(array $classMap)
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{
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@@ -102,9 +175,11 @@ class ClassLoader
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* Registers a set of PSR-0 directories for a given prefix, either
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* appending or prepending to the ones previously set for this prefix.
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*
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- * @param string $prefix The prefix
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- * @param array|string $paths The PSR-0 root directories
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- * @param bool $prepend Whether to prepend the directories
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+ * @param string $prefix The prefix
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+ * @param string[]|string $paths The PSR-0 root directories
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+ * @param bool $prepend Whether to prepend the directories
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+ *
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+ * @return void
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*/
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public function add($prefix, $paths, $prepend = false)
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{
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@@ -147,11 +222,13 @@ class ClassLoader
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* Registers a set of PSR-4 directories for a given namespace, either
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* appending or prepending to the ones previously set for this namespace.
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*
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- * @param string $prefix The prefix/namespace, with trailing '\\'
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- * @param array|string $paths The PSR-4 base directories
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- * @param bool $prepend Whether to prepend the directories
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+ * @param string $prefix The prefix/namespace, with trailing '\\'
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+ * @param string[]|string $paths The PSR-4 base directories
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+ * @param bool $prepend Whether to prepend the directories
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*
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* @throws \InvalidArgumentException
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+ *
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+ * @return void
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*/
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public function addPsr4($prefix, $paths, $prepend = false)
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{
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@@ -195,8 +272,10 @@ class ClassLoader
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* Registers a set of PSR-0 directories for a given prefix,
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* replacing any others previously set for this prefix.
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*
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- * @param string $prefix The prefix
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- * @param array|string $paths The PSR-0 base directories
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+ * @param string $prefix The prefix
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+ * @param string[]|string $paths The PSR-0 base directories
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+ *
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+ * @return void
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*/
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public function set($prefix, $paths)
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{
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@@ -211,10 +290,12 @@ class ClassLoader
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* Registers a set of PSR-4 directories for a given namespace,
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* replacing any others previously set for this namespace.
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*
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- * @param string $prefix The prefix/namespace, with trailing '\\'
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- * @param array|string $paths The PSR-4 base directories
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+ * @param string $prefix The prefix/namespace, with trailing '\\'
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+ * @param string[]|string $paths The PSR-4 base directories
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*
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* @throws \InvalidArgumentException
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+ *
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+ * @return void
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*/
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public function setPsr4($prefix, $paths)
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{
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@@ -234,6 +315,8 @@ class ClassLoader
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* Turns on searching the include path for class files.
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*
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* @param bool $useIncludePath
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+ *
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+ * @return void
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*/
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public function setUseIncludePath($useIncludePath)
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{
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@@ -256,6 +339,8 @@ class ClassLoader
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* that have not been registered with the class map.
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*
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* @param bool $classMapAuthoritative
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+ *
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+ * @return void
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*/
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public function setClassMapAuthoritative($classMapAuthoritative)
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{
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@@ -276,6 +361,8 @@ class ClassLoader
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* APCu prefix to use to cache found/not-found classes, if the extension is enabled.
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*
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* @param string|null $apcuPrefix
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+ *
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+ * @return void
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*/
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public function setApcuPrefix($apcuPrefix)
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{
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@@ -296,25 +383,44 @@ class ClassLoader
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* Registers this instance as an autoloader.
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*
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* @param bool $prepend Whether to prepend the autoloader or not
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+ *
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+ * @return void
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*/
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public function register($prepend = false)
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{
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spl_autoload_register(array($this, 'loadClass'), true, $prepend);
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+
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+ if (null === $this->vendorDir) {
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+ return;
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+ }
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+
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+ if ($prepend) {
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+ self::$registeredLoaders = array($this->vendorDir => $this) + self::$registeredLoaders;
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+ } else {
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+ unset(self::$registeredLoaders[$this->vendorDir]);
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+ self::$registeredLoaders[$this->vendorDir] = $this;
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+ }
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}
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/**
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* Unregisters this instance as an autoloader.
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+ *
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+ * @return void
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*/
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public function unregister()
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{
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spl_autoload_unregister(array($this, 'loadClass'));
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+
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+ if (null !== $this->vendorDir) {
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+ unset(self::$registeredLoaders[$this->vendorDir]);
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+ }
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}
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/**
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* Loads the given class or interface.
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*
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* @param string $class The name of the class
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- * @return bool|null True if loaded, null otherwise
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+ * @return true|null True if loaded, null otherwise
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*/
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public function loadClass($class)
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{
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@@ -323,6 +429,8 @@ class ClassLoader
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return true;
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}
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+
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+ return null;
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}
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/**
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@@ -367,6 +475,21 @@ class ClassLoader
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return $file;
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}
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+ /**
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+ * Returns the currently registered loaders indexed by their corresponding vendor directories.
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+ *
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+ * @return self[]
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+ */
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+ public static function getRegisteredLoaders()
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+ {
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+ return self::$registeredLoaders;
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+ }
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+
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+ /**
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+ * @param string $class
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+ * @param string $ext
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+ * @return string|false
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+ */
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private function findFileWithExtension($class, $ext)
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{
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// PSR-4 lookup
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@@ -438,6 +561,10 @@ class ClassLoader
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* Scope isolated include.
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*
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* Prevents access to $this/self from included files.
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+ *
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+ * @param string $file
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+ * @return void
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+ * @private
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*/
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function includeFile($file)
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{
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