303 lines
7.6 KiB
PHP
303 lines
7.6 KiB
PHP
<?php
|
|
namespace Composer\Autoload;
|
|
if (!defined('ABSPATH')) exit;
|
|
class ClassLoader
|
|
{
|
|
private static $includeFile;
|
|
private $vendorDir;
|
|
// PSR-4
|
|
private $prefixLengthsPsr4 = array();
|
|
private $prefixDirsPsr4 = array();
|
|
private $fallbackDirsPsr4 = array();
|
|
// PSR-0
|
|
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)
|
|
{
|
|
$paths = (array) $paths;
|
|
if (!$prefix) {
|
|
if ($prepend) {
|
|
$this->fallbackDirsPsr0 = array_merge(
|
|
$paths,
|
|
$this->fallbackDirsPsr0
|
|
);
|
|
} else {
|
|
$this->fallbackDirsPsr0 = array_merge(
|
|
$this->fallbackDirsPsr0,
|
|
$paths
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
$first = $prefix[0];
|
|
if (!isset($this->prefixesPsr0[$first][$prefix])) {
|
|
$this->prefixesPsr0[$first][$prefix] = $paths;
|
|
return;
|
|
}
|
|
if ($prepend) {
|
|
$this->prefixesPsr0[$first][$prefix] = array_merge(
|
|
$paths,
|
|
$this->prefixesPsr0[$first][$prefix]
|
|
);
|
|
} else {
|
|
$this->prefixesPsr0[$first][$prefix] = array_merge(
|
|
$this->prefixesPsr0[$first][$prefix],
|
|
$paths
|
|
);
|
|
}
|
|
}
|
|
public function addPsr4($prefix, $paths, $prepend = false)
|
|
{
|
|
$paths = (array) $paths;
|
|
if (!$prefix) {
|
|
// Register directories for the root namespace.
|
|
if ($prepend) {
|
|
$this->fallbackDirsPsr4 = array_merge(
|
|
$paths,
|
|
$this->fallbackDirsPsr4
|
|
);
|
|
} else {
|
|
$this->fallbackDirsPsr4 = array_merge(
|
|
$this->fallbackDirsPsr4,
|
|
$paths
|
|
);
|
|
}
|
|
} elseif (!isset($this->prefixDirsPsr4[$prefix])) {
|
|
// Register directories for a new namespace.
|
|
$length = strlen($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] = $paths;
|
|
} elseif ($prepend) {
|
|
// Prepend directories for an already registered namespace.
|
|
$this->prefixDirsPsr4[$prefix] = array_merge(
|
|
$paths,
|
|
$this->prefixDirsPsr4[$prefix]
|
|
);
|
|
} else {
|
|
// Append directories for an already registered namespace.
|
|
$this->prefixDirsPsr4[$prefix] = array_merge(
|
|
$this->prefixDirsPsr4[$prefix],
|
|
$paths
|
|
);
|
|
}
|
|
}
|
|
public function set($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)) {
|
|
$includeFile = self::$includeFile;
|
|
$includeFile($file);
|
|
return true;
|
|
}
|
|
return null;
|
|
}
|
|
public function findFile($class)
|
|
{
|
|
// class map lookup
|
|
if (isset($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');
|
|
// Search for Hack files if we are running on HHVM
|
|
if (false === $file && defined('HHVM_VERSION')) {
|
|
$file = $this->findFileWithExtension($class, '.hh');
|
|
}
|
|
if (null !== $this->apcuPrefix) {
|
|
apcu_add($this->apcuPrefix.$class, $file);
|
|
}
|
|
if (false === $file) {
|
|
// Remember that this class does not exist.
|
|
$this->missingClasses[$class] = true;
|
|
}
|
|
return $file;
|
|
}
|
|
public static function getRegisteredLoaders()
|
|
{
|
|
return self::$registeredLoaders;
|
|
}
|
|
private function findFileWithExtension($class, $ext)
|
|
{
|
|
// PSR-4 lookup
|
|
$logicalPathPsr4 = strtr($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 $file;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// PSR-4 fallback dirs
|
|
foreach ($this->fallbackDirsPsr4 as $dir) {
|
|
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
|
|
return $file;
|
|
}
|
|
}
|
|
// PSR-0 lookup
|
|
if (false !== $pos = strrpos($class, '\\')) {
|
|
// namespaced class name
|
|
$logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
|
|
. strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
|
|
} else {
|
|
// PEAR-like class name
|
|
$logicalPathPsr0 = strtr($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 $file;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// PSR-0 fallback dirs
|
|
foreach ($this->fallbackDirsPsr0 as $dir) {
|
|
if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
|
|
return $file;
|
|
}
|
|
}
|
|
// PSR-0 include paths.
|
|
if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
|
|
return $file;
|
|
}
|
|
return false;
|
|
}
|
|
private static function initializeIncludeClosure()
|
|
{
|
|
if (self::$includeFile !== null) {
|
|
return;
|
|
}
|
|
self::$includeFile = \Closure::bind(static function($file) {
|
|
include $file;
|
|
}, null, null);
|
|
}
|
|
}
|