Laravel version update

Laravel version update

vendor/symfony/translation/Extractor/AbstractFileExtractor.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Translation\Extractor;
 
+use Symfony\Component\Translation\Exception\InvalidArgumentException;
+
 /**
  * Base class used by classes that extract translation messages from files.
  *
@@ -19,13 +21,13 @@ namespace Symfony\Component\Translation\Extractor;
 abstract class AbstractFileExtractor
 {
     /**
-     * @param string|array $resource files, a file or a directory
+     * @param string|array $resource Files, a file or a directory
      *
      * @return array
      */
     protected function extractFiles($resource)
     {
-        if (is_array($resource) || $resource instanceof \Traversable) {
+        if (\is_array($resource) || $resource instanceof \Traversable) {
             $files = array();
             foreach ($resource as $file) {
                 if ($this->canBeExtracted($file)) {
@@ -41,14 +43,9 @@ abstract class AbstractFileExtractor
         return $files;
     }
 
-    /**
-     * @param string $file
-     *
-     * @return \SplFileInfo
-     */
-    private function toSplFileInfo($file)
+    private function toSplFileInfo(string $file): \SplFileInfo
     {
-        return ($file instanceof \SplFileInfo) ? $file : new \SplFileInfo($file);
+        return new \SplFileInfo($file);
     }
 
     /**
@@ -56,12 +53,12 @@ abstract class AbstractFileExtractor
      *
      * @return bool
      *
-     * @throws \InvalidArgumentException
+     * @throws InvalidArgumentException
      */
     protected function isFile($file)
     {
         if (!is_file($file)) {
-            throw new \InvalidArgumentException(sprintf('The "%s" file does not exist.', $file));
+            throw new InvalidArgumentException(sprintf('The "%s" file does not exist.', $file));
         }
 
         return true;
@@ -75,7 +72,7 @@ abstract class AbstractFileExtractor
     abstract protected function canBeExtracted($file);
 
     /**
-     * @param string|array $resource files, a file or a directory
+     * @param string|array $resource Files, a file or a directory
      *
      * @return array files to be extracted
      */