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vendor/symfony/http-client/Response/HttplugPromise.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpClient\Response;
+
+use GuzzleHttp\Promise\Create;
+use GuzzleHttp\Promise\PromiseInterface as GuzzlePromiseInterface;
+use Http\Promise\Promise as HttplugPromiseInterface;
+use Psr\Http\Message\ResponseInterface as Psr7ResponseInterface;
+
+/**
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ *
+ * @internal
+ */
+final class HttplugPromise implements HttplugPromiseInterface
+{
+    private $promise;
+
+    public function __construct(GuzzlePromiseInterface $promise)
+    {
+        $this->promise = $promise;
+    }
+
+    public function then(?callable $onFulfilled = null, ?callable $onRejected = null): self
+    {
+        return new self($this->promise->then(
+            $this->wrapThenCallback($onFulfilled),
+            $this->wrapThenCallback($onRejected)
+        ));
+    }
+
+    public function cancel(): void
+    {
+        $this->promise->cancel();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getState(): string
+    {
+        return $this->promise->getState();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return Psr7ResponseInterface|mixed
+     */
+    public function wait($unwrap = true)
+    {
+        $result = $this->promise->wait($unwrap);
+
+        while ($result instanceof HttplugPromiseInterface || $result instanceof GuzzlePromiseInterface) {
+            $result = $result->wait($unwrap);
+        }
+
+        return $result;
+    }
+
+    private function wrapThenCallback(?callable $callback): ?callable
+    {
+        if (null === $callback) {
+            return null;
+        }
+
+        return static function ($value) use ($callback) {
+            return Create::promiseFor($callback($value));
+        };
+    }
+}