public function UniversalClassLoader::findFile

Finds the path to the file where the class is defined.

Parameters

string $class The name of the class:

Return value

string|null The path, if found

File

drupal/core/vendor/symfony/class-loader/Symfony/Component/ClassLoader/UniversalClassLoader.php, line 260

Class

UniversalClassLoader

UniversalClassLoader implements a "universal" autoloader for PHP 5.3.

Namespace

Code

public function findFile($class) {
  if ('\\' == $class[0]) {
    $class = substr($class, 1);
  }
  if (false !== ($pos = strrpos($class, '\\'))) {

    // namespaced class name
    $namespace = substr($class, 0, $pos);
    $className = substr($class, $pos + 1);
    $normalizedClass = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR . str_replace('_', DIRECTORY_SEPARATOR, $className) . '.php';
    foreach ($this->namespaces as $ns => $dirs) {
      if (0 !== strpos($namespace, $ns)) {
        continue;
      }
      foreach ($dirs as $dir) {
        $file = $dir . DIRECTORY_SEPARATOR . $normalizedClass;
        if (is_file($file)) {
          return $file;
        }
      }
    }
    foreach ($this->namespaceFallbacks as $dir) {
      $file = $dir . DIRECTORY_SEPARATOR . $normalizedClass;
      if (is_file($file)) {
        return $file;
      }
    }
  }
  else {

    // PEAR-like class name
    $normalizedClass = str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
    foreach ($this->prefixes as $prefix => $dirs) {
      if (0 !== strpos($class, $prefix)) {
        continue;
      }
      foreach ($dirs as $dir) {
        $file = $dir . DIRECTORY_SEPARATOR . $normalizedClass;
        if (is_file($file)) {
          return $file;
        }
      }
    }
    foreach ($this->prefixFallbacks as $dir) {
      $file = $dir . DIRECTORY_SEPARATOR . $normalizedClass;
      if (is_file($file)) {
        return $file;
      }
    }
  }
  if ($this->useIncludePath && ($file = stream_resolve_include_path($normalizedClass))) {
    return $file;
  }
}