Add SymfonyHttplug to HttpAsyncClient implementations (#147)

Author: nicolas-grekas

src/Strategy/CommonClassesStrategy.php

@@ -2,6 +2,7 @@
 
 namespace Http\Discovery\Strategy;
 
+use GuzzleHttp\Promise\Promise;
 use GuzzleHttp\Psr7\Request as GuzzleRequest;
 use Http\Client\HttpAsyncClient;
 use Http\Client\HttpClient;
@@ -65,15 +66,13 @@ final class CommonClassesStrategy implements DiscoveryStrategy
             ['class' => SlimUriFactory::class, 'condition' => [SlimRequest::class, SlimUriFactory::class]],
         ],
         HttpAsyncClient::class => [
+            ['class' => SymfonyHttplug::class, 'condition' => [SymfonyHttplug::class, Promise::class]],
             ['class' => Guzzle6::class, 'condition' => Guzzle6::class],
             ['class' => Curl::class, 'condition' => Curl::class],
             ['class' => React::class, 'condition' => React::class],
         ],
         HttpClient::class => [
-            [
-                'class' => [self::class, 'symfonyHttplugInstantiate'],
-                'condition' => SymfonyHttplug::class,
-            ],
+            ['class' => SymfonyHttplug::class, 'condition' => SymfonyHttplug::class],
             ['class' => Guzzle6::class, 'condition' => Guzzle6::class],
             ['class' => Guzzle5::class, 'condition' => Guzzle5::class],
             ['class' => Curl::class, 'condition' => Curl::class],
@@ -130,11 +129,6 @@ public static function buzzInstantiate()
         return new \Buzz\Client\FileGetContents(MessageFactoryDiscovery::find());
     }
 
-    public static function symfonyHttplugInstantiate()
-    {
-        return new SymfonyHttplug(null, Psr17FactoryDiscovery::findResponseFactory(), Psr17FactoryDiscovery::findStreamFactory());
-    }
-
     public static function symfonyPsr18Instantiate()
     {
         return new SymfonyPsr18(null, Psr17FactoryDiscovery::findResponseFactory(), Psr17FactoryDiscovery::findStreamFactory());