fix:更新已知bug,优化代码

vendor/symfony/finder/Iterator/RecursiveDirectoryIterator.php

@@ -21,20 +21,13 @@ use Symfony\Component\Finder\SplFileInfo;
  */
 class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
 {
-    /**
-     * @var bool
-     */
-    private $ignoreUnreadableDirs;
-
-    /**
-     * @var bool
-     */
-    private $rewindable;
+    private bool $ignoreUnreadableDirs;
+    private ?bool $rewindable = null;
 
     // these 3 properties take part of the performance optimization to avoid redoing the same work in all iterations
-    private $rootPath;
-    private $subPath;
-    private $directorySeparator = '/';
+    private string $rootPath;
+    private string $subPath;
+    private string $directorySeparator = '/';
 
     /**
      * @throws \RuntimeException
@@ -55,17 +48,15 @@ class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
 
     /**
      * Return an instance of SplFileInfo with support for relative paths.
-     *
-     * @return SplFileInfo
      */
-    #[\ReturnTypeWillChange]
-    public function current()
+    public function current(): SplFileInfo
     {
         // the logic here avoids redoing the same work in all iterations
 
-        if (null === $subPathname = $this->subPath) {
-            $subPathname = $this->subPath = $this->getSubPath();
+        if (!isset($this->subPath)) {
+            $this->subPath = $this->getSubPath();
         }
+        $subPathname = $this->subPath;
         if ('' !== $subPathname) {
             $subPathname .= $this->directorySeparator;
         }
@@ -78,13 +69,7 @@ class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
         return new SplFileInfo($basePath.$subPathname, $this->subPath, $subPathname);
     }
 
-    /**
-     * @param bool $allowLinks
-     *
-     * @return bool
-     */
-    #[\ReturnTypeWillChange]
-    public function hasChildren($allowLinks = false)
+    public function hasChildren(bool $allowLinks = false): bool
     {
         $hasChildren = parent::hasChildren($allowLinks);
 
@@ -103,12 +88,9 @@ class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
     }
 
     /**
-     * @return \RecursiveDirectoryIterator
-     *
      * @throws AccessDeniedException
      */
-    #[\ReturnTypeWillChange]
-    public function getChildren()
+    public function getChildren(): \RecursiveDirectoryIterator
     {
         try {
             $children = parent::getChildren();
@@ -130,11 +112,8 @@ class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
 
     /**
      * Do nothing for non rewindable stream.
-     *
-     * @return void
      */
-    #[\ReturnTypeWillChange]
-    public function rewind()
+    public function rewind(): void
     {
         if (false === $this->isRewindable()) {
             return;
@@ -145,10 +124,8 @@ class RecursiveDirectoryIterator extends \RecursiveDirectoryIterator
 
     /**
      * Checks if the stream is rewindable.
-     *
-     * @return bool
      */
-    public function isRewindable()
+    public function isRewindable(): bool
     {
         if (null !== $this->rewindable) {
             return $this->rewindable;