feature #41161 [HttpClient] Add DecoratorTrait to ease writing simple decorators (nicolas-grekas)

This PR was merged into the 5.3-dev branch.

Discussion
----------

[HttpClient] Add `DecoratorTrait` to ease writing simple decorators

| Q             | A
| ------------- | ---
| Branch?       | 5.x
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Commits
-------

46821708b0 [HttpClient] Add `DecoratorTrait` to ease writing simple decorators

src/Symfony/Component/HttpClient/AsyncDecoratorTrait.php

@@ -13,7 +13,6 @@ namespace Symfony\Component\HttpClient;
 
 use Symfony\Component\HttpClient\Response\AsyncResponse;
 use Symfony\Component\HttpClient\Response\ResponseStream;
-use Symfony\Contracts\HttpClient\HttpClientInterface;
 use Symfony\Contracts\HttpClient\ResponseInterface;
 use Symfony\Contracts\HttpClient\ResponseStreamInterface;
 
@@ -24,12 +23,7 @@ use Symfony\Contracts\HttpClient\ResponseStreamInterface;
  */
 trait AsyncDecoratorTrait
 {
-    private $client;
-
-    public function __construct(HttpClientInterface $client = null)
-    {
-        $this->client = $client ?? HttpClient::create();
-    }
+    use DecoratorTrait;
 
     /**
      * {@inheritdoc}
@@ -51,15 +45,4 @@ trait AsyncDecoratorTrait
 
         return new ResponseStream(AsyncResponse::stream($responses, $timeout, static::class));
     }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function withOptions(array $options): self
-    {
-        $clone = clone $this;
-        $clone->client = $this->client->withOptions($options);
-
-        return $clone;
-    }
 }

src/Symfony/Component/HttpClient/CHANGELOG.md

@@ -5,6 +5,7 @@ CHANGELOG
 ---
 
  * Implement `HttpClientInterface::withOptions()` from `symfony/contracts` v2.4
+ * Add `DecoratorTrait` to ease writing simple decorators
 
 5.2.0
 -----

src/Symfony/Component/HttpClient/DecoratorTrait.php

@@ -0,0 +1,58 @@
+<?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;
+
+use Symfony\Contracts\HttpClient\HttpClientInterface;
+use Symfony\Contracts\HttpClient\ResponseInterface;
+use Symfony\Contracts\HttpClient\ResponseStreamInterface;
+
+/**
+ * Eases with writing decorators.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ */
+trait DecoratorTrait
+{
+    private $client;
+
+    public function __construct(HttpClientInterface $client = null)
+    {
+        $this->client = $client ?? HttpClient::create();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function request(string $method, string $url, array $options = []): ResponseInterface
+    {
+        return $this->client->request($method, $url, $options);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function stream($responses, float $timeout = null): ResponseStreamInterface
+    {
+        return $this->client->stream($responses, $timeout);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withOptions(array $options): self
+    {
+        $clone = clone $this;
+        $clone->client = $this->client->withOptions($options);
+
+        return $clone;
+    }
+}