File: /var/www/html/shootinschool/wp-content/plugins/gf-form-multicolumn/vendor/composer/ClassLoader.php
<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Autoload;
/**
* ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
*
* $loader = new \Composer\Autoload\ClassLoader();
*
* // register classes with namespaces
* $loader->add('Symfony\Component', __DIR__.'/component');
* $loader->add('Symfony', __DIR__.'/framework');
*
* // activate the autoloader
* $loader->register();
*
* // to enable searching the include path (eg. for PEAR packages)
* $loader->setUseIncludePath(true);
*
* In this example, if you try to use a class in the Symfony\Component
* namespace or one of its children (Symfony\Component\Console for instance),
* the autoloader will first look for the class under the component/
* directory, and it will then fallback to the framework/ directory if not
* found before giving up.
*
* This class is loosely based on the Symfony UniversalClassLoader.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Jordi Boggiano <j.boggiano@seld.be>
* @see http://www.php-fig.org/psr/psr-0/
* @see http://www.php-fig.org/psr/psr-4/
*/
class ClassLoader {
// PSR-4
private $prefixLengthsPsr4 = [];
private $prefixDirsPsr4 = [];
private $fallbackDirsPsr4 = [];
// PSR-0
private $prefixesPsr0 = [];
private $fallbackDirsPsr0 = [];
private $useIncludePath = false;
private $classMap = [];
private $classMapAuthoritative = false;
private $missingClasses = [];
private $apcuPrefix;
public function getPrefixes() {
if ( ! empty( $this->prefixesPsr0 ) ) {
return call_user_func_array( 'array_merge', $this->prefixesPsr0 );
}
return [];
}
public function getPrefixesPsr4() {
return $this->prefixDirsPsr4;
}
public function getFallbackDirs() {
return $this->fallbackDirsPsr0;
}
public function getFallbackDirsPsr4() {
return $this->fallbackDirsPsr4;
}
public function getClassMap() {
return $this->classMap;
}
/**
* @param array $classMap Class to filename map
*/
public function addClassMap( array $classMap ) {
if ( $this->classMap ) {
$this->classMap = array_merge( $this->classMap, $classMap );
} else {
$this->classMap = $classMap;
}
}
/**
* Registers a set of PSR-0 directories for a given prefix, either
* appending or prepending to the ones previously set for this prefix.
*
* @param string $prefix The prefix
* @param array|string $paths The PSR-0 root directories
* @param bool $prepend Whether to prepend the directories
*/
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
);
}
}
/**
* Registers a set of PSR-4 directories for a given namespace, either
* appending or prepending to the ones previously set for this namespace.
*
* @param string $prefix The prefix/namespace, with trailing '\\'
* @param array|string $paths The PSR-4 base directories
* @param bool $prepend Whether to prepend the directories
*
* @throws \InvalidArgumentException
*/
public function addPsr4( $prefix, $paths, $prepend = false ) {
if ( ! $prefix ) {
// Register directories for the root namespace.
if ( $prepend ) {
$this->fallbackDirsPsr4 = array_merge(
(array) $paths,
$this->fallbackDirsPsr4
);
} else {
$this->fallbackDirsPsr4 = array_merge(
$this->fallbackDirsPsr4,
(array) $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 ] = (array) $paths;
} elseif ( $prepend ) {
// Prepend directories for an already registered namespace.
$this->prefixDirsPsr4[ $prefix ] = array_merge(
(array) $paths,
$this->prefixDirsPsr4[ $prefix ]
);
} else {
// Append directories for an already registered namespace.
$this->prefixDirsPsr4[ $prefix ] = array_merge(
$this->prefixDirsPsr4[ $prefix ],
(array) $paths
);
}
}
/**
* Registers a set of PSR-0 directories for a given prefix,
* replacing any others previously set for this prefix.
*
* @param string $prefix The prefix
* @param array|string $paths The PSR-0 base directories
*/
public function set( $prefix, $paths ) {
if ( ! $prefix ) {
$this->fallbackDirsPsr0 = (array) $paths;
} else {
$this->prefixesPsr0[ $prefix[0] ][ $prefix ] = (array) $paths;
}
}
/**
* Registers a set of PSR-4 directories for a given namespace,
* replacing any others previously set for this namespace.
*
* @param string $prefix The prefix/namespace, with trailing '\\'
* @param array|string $paths The PSR-4 base directories
*
* @throws \InvalidArgumentException
*/
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;
}
}
/**
* Turns on searching the include path for class files.
*
* @param bool $useIncludePath
*/
public function setUseIncludePath( $useIncludePath ) {
$this->useIncludePath = $useIncludePath;
}
/**
* Can be used to check if the autoloader uses the include path to check
* for classes.
*
* @return bool
*/
public function getUseIncludePath() {
return $this->useIncludePath;
}
/**
* Turns off searching the prefix and fallback directories for classes
* that have not been registered with the class map.
*
* @param bool $classMapAuthoritative
*/
public function setClassMapAuthoritative( $classMapAuthoritative ) {
$this->classMapAuthoritative = $classMapAuthoritative;
}
/**
* Should class lookup fail if not found in the current class map?
*
* @return bool
*/
public function isClassMapAuthoritative() {
return $this->classMapAuthoritative;
}
/**
* APCu prefix to use to cache found/not-found classes, if the extension is
* enabled.
*
* @param string|null $apcuPrefix
*/
public function setApcuPrefix( $apcuPrefix ) {
$this->apcuPrefix = function_exists( 'apcu_fetch' ) && filter_var( ini_get( 'apc.enabled' ),
FILTER_VALIDATE_BOOLEAN ) ? $apcuPrefix : null;
}
/**
* The APCu prefix in use, or null if APCu caching is not enabled.
*
* @return string|null
*/
public function getApcuPrefix() {
return $this->apcuPrefix;
}
/**
* Registers this instance as an autoloader.
*
* @param bool $prepend Whether to prepend the autoloader or not
*/
public function register( $prepend = false ) {
spl_autoload_register( [ $this, 'loadClass' ], true, $prepend );
}
/**
* Unregisters this instance as an autoloader.
*/
public function unregister() {
spl_autoload_unregister( [ $this, 'loadClass' ] );
}
/**
* Loads the given class or interface.
*
* @param string $class The name of the class
*
* @return bool|null True if loaded, null otherwise
*/
public function loadClass( $class ) {
if ( $file = $this->findFile( $class ) ) {
includeFile( $file );
return true;
}
}
/**
* Finds the path to the file where the class is defined.
*
* @param string $class The name of the class
*
* @return string|false The path if found, false otherwise
*/
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;
}
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;
}
}
/**
* Scope isolated include.
*
* Prevents access to $this/self from included files.
*/
function includeFile( $file ) {
include $file;
}