fix:更新已知bug,优化代码

vendor/symfony/http-foundation/StreamedResponse.php

@@ -28,7 +28,7 @@ class StreamedResponse extends Response
 {
     protected $callback;
     protected $streamed;
-    private $headersSent;
+    private bool $headersSent;
 
     public function __construct(callable $callback = null, int $status = 200, array $headers = [])
     {
@@ -41,28 +41,12 @@ class StreamedResponse extends Response
         $this->headersSent = false;
     }
 
-    /**
-     * Factory method for chainability.
-     *
-     * @param callable|null $callback A valid PHP callback or null to set it later
-     *
-     * @return static
-     *
-     * @deprecated since Symfony 5.1, use __construct() instead.
-     */
-    public static function create($callback = null, int $status = 200, array $headers = [])
-    {
-        trigger_deprecation('symfony/http-foundation', '5.1', 'The "%s()" method is deprecated, use "new %s()" instead.', __METHOD__, static::class);
-
-        return new static($callback, $status, $headers);
-    }
-
     /**
      * Sets the PHP callback associated with this Response.
      *
      * @return $this
      */
-    public function setCallback(callable $callback)
+    public function setCallback(callable $callback): static
     {
         $this->callback = $callback;
 
@@ -76,7 +60,7 @@ class StreamedResponse extends Response
      *
      * @return $this
      */
-    public function sendHeaders()
+    public function sendHeaders(): static
     {
         if ($this->headersSent) {
             return $this;
@@ -94,7 +78,7 @@ class StreamedResponse extends Response
      *
      * @return $this
      */
-    public function sendContent()
+    public function sendContent(): static
     {
         if ($this->streamed) {
             return $this;
@@ -118,7 +102,7 @@ class StreamedResponse extends Response
      *
      * @return $this
      */
-    public function setContent(?string $content)
+    public function setContent(?string $content): static
     {
         if (null !== $content) {
             throw new \LogicException('The content cannot be set on a StreamedResponse instance.');
@@ -132,7 +116,7 @@ class StreamedResponse extends Response
     /**
      * {@inheritdoc}
      */
-    public function getContent()
+    public function getContent(): string|false
     {
         return false;
     }