Declare parameter and return types

CHANGELOG.md

@@ -20,6 +20,7 @@ The change log describes what is "Added", "Removed", "Changed" or "Fixed" betwee
 - Removed the `DummyClient` interface
 - Removed the `Http\Client\HttpClient` alias use the `Psr\Http\Client\ClientInterface` typehint in your services for autowiring.
 - Changed classes marked as `@final` to be actually `final`. If you extended any of those, instead implement interfaces or decorate the class rather than extending it. Open an issue if you think a class needs to be made non-final to discuss what we should do.
+- Added return type declaration to `Http\HttplugBundle\ClientFactory\ClientFactory::createClient`
 
 # Version 1
 

src/ClientFactory/AutoDiscoveryFactory.php

@@ -5,6 +5,7 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Discovery\Psr18ClientDiscovery;
+use Psr\Http\Client\ClientInterface;
 
 /**
  * Use auto discovery to find a HTTP client.
@@ -13,7 +14,7 @@
  */
 final class AutoDiscoveryFactory implements ClientFactory
 {
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         return Psr18ClientDiscovery::find();
     }

src/ClientFactory/BuzzFactory.php

@@ -5,6 +5,7 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Buzz\Client\FileGetContents;
+use Psr\Http\Client\ClientInterface;
 use Psr\Http\Message\ResponseFactoryInterface;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
@@ -17,7 +18,7 @@ public function __construct(private readonly ResponseFactoryInterface $responseF
     {
     }
 
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Buzz\Client\FileGetContents')) {
             throw new \LogicException('To use the Buzz you need to install the "kriswallsmith/buzz" package.');
@@ -29,7 +30,7 @@ public function createClient(array $config = [])
     /**
      * Get options to configure the Buzz client.
      */
-    private function getOptions(array $config = [])
+    private function getOptions(array $config = []): array
     {
         $resolver = new OptionsResolver();
 

src/ClientFactory/ClientFactory.php

@@ -13,8 +13,6 @@ interface ClientFactory
 {
     /**
      * Input an array of configuration to be able to create a ClientInterface.
-     *
-     * @return ClientInterface
      */
-    public function createClient(array $config = []);
+    public function createClient(array $config = []): ClientInterface;
 }

src/ClientFactory/CurlFactory.php

@@ -5,6 +5,7 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Client\Curl\Client;
+use Psr\Http\Client\ClientInterface;
 use Psr\Http\Message\ResponseFactoryInterface;
 use Psr\Http\Message\StreamFactoryInterface;
 
@@ -19,7 +20,7 @@ public function __construct(
     ) {
     }
 
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Http\Client\Curl\Client')) {
             throw new \LogicException('To use the Curl client you need to install the "php-http/curl-client" package.');

src/ClientFactory/Guzzle6Factory.php

@@ -5,13 +5,14 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Adapter\Guzzle6\Client;
+use Psr\Http\Client\ClientInterface;
 
 /**
  * @author Tobias Nyholm <[email protected]>
  */
 final class Guzzle6Factory implements ClientFactory
 {
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Http\Adapter\Guzzle6\Client')) {
             throw new \LogicException('To use the Guzzle6 adapter you need to install the "php-http/guzzle6-adapter" package.');

src/ClientFactory/Guzzle7Factory.php

@@ -5,13 +5,14 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Adapter\Guzzle7\Client;
+use Psr\Http\Client\ClientInterface;
 
 /**
  * @author Tobias Nyholm <[email protected]>
  */
 final class Guzzle7Factory implements ClientFactory
 {
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Http\Adapter\Guzzle7\Client')) {
             throw new \LogicException('To use the Guzzle7 adapter you need to install the "php-http/guzzle7-adapter" package.');

src/ClientFactory/MockFactory.php

@@ -19,12 +19,12 @@ final class MockFactory implements ClientFactory
      *
      * Note that this can be any client, not only a mock client.
      */
-    public function setClient(ClientInterface $client)
+    public function setClient(ClientInterface $client): void
     {
         $this->client = $client;
     }
 
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists(Client::class)) {
             throw new \LogicException('To use the mock adapter you need to install the "php-http/mock-client" package.');

src/ClientFactory/ReactFactory.php

@@ -5,13 +5,14 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Adapter\React\Client;
+use Psr\Http\Client\ClientInterface;
 
 /**
  * @author Tobias Nyholm <[email protected]>
  */
 final class ReactFactory implements ClientFactory
 {
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Http\Adapter\React\Client')) {
             throw new \LogicException('To use the React adapter you need to install the "php-http/react-adapter" package.');

src/ClientFactory/SocketFactory.php

@@ -5,13 +5,14 @@
 namespace Http\HttplugBundle\ClientFactory;
 
 use Http\Client\Socket\Client;
+use Psr\Http\Client\ClientInterface;
 
 /**
  * @author Tobias Nyholm <[email protected]>
  */
 final class SocketFactory implements ClientFactory
 {
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists('Http\Client\Socket\Client')) {
             throw new \LogicException('To use the Socket client you need to install the "php-http/socket-client" package.');

src/ClientFactory/SymfonyFactory.php

@@ -4,6 +4,7 @@
 
 namespace Http\HttplugBundle\ClientFactory;
 
+use Psr\Http\Client\ClientInterface;
 use Psr\Http\Message\ResponseFactoryInterface;
 use Psr\Http\Message\StreamFactoryInterface;
 use Symfony\Component\HttpClient\HttpClient;
@@ -20,7 +21,7 @@ public function __construct(
     ) {
     }
 
-    public function createClient(array $config = [])
+    public function createClient(array $config = []): ClientInterface
     {
         if (!class_exists(HttplugClient::class)) {
             throw new \LogicException('To use the Symfony client you need to install the "symfony/http-client" package.');

src/Collector/Collector.php

@@ -54,7 +54,7 @@ public function getCapturedBodyLength(): ?int
     /**
      * Mark the stack as active. If a stack was already active, use it as parent for our stack.
      */
-    public function activateStack(Stack $stack)
+    public function activateStack(Stack $stack): void
     {
         if (null !== $this->activeStack) {
             $stack->setParent($this->activeStack);
@@ -66,100 +66,90 @@ public function activateStack(Stack $stack)
     /**
      * Mark the stack as inactive.
      */
-    public function deactivateStack(Stack $stack)
+    public function deactivateStack(Stack $stack): void
     {
         $this->activeStack = $stack->getParent();
     }
 
-    /**
-     * @return Stack|null
-     */
-    public function getActiveStack()
+    public function getActiveStack(): ?Stack
     {
         return $this->activeStack;
     }
 
-    public function addStack(Stack $stack)
+    public function addStack(Stack $stack): void
     {
         $this->data['stacks'][] = $stack;
     }
 
     /**
      * @return Stack[]
      */
-    public function getChildrenStacks(Stack $parent)
+    public function getChildrenStacks(Stack $parent): array
     {
-        return array_filter($this->data['stacks'], fn (Stack $stack) => $stack->getParent() === $parent);
+        return array_filter($this->data['stacks'], static fn (Stack $stack) => $stack->getParent() === $parent);
     }
 
     /**
      * @return Stack[]
      */
-    public function getStacks()
+    public function getStacks(): array
     {
         return $this->data['stacks'];
     }
 
     /**
      * @return Stack[]
      */
-    public function getSuccessfulStacks()
+    public function getSuccessfulStacks(): array
     {
-        return array_filter($this->data['stacks'], fn (Stack $stack) => !$stack->isFailed());
+        return array_filter($this->data['stacks'], static fn (Stack $stack) => !$stack->isFailed());
     }
 
     /**
      * @return Stack[]
      */
-    public function getFailedStacks()
+    public function getFailedStacks(): array
     {
-        return array_filter($this->data['stacks'], fn (Stack $stack) => $stack->isFailed());
+        return array_filter($this->data['stacks'], static fn (Stack $stack) => $stack->isFailed());
     }
 
     /**
-     * @return array
+     * @return string[]
      */
-    public function getClients()
+    public function getClients(): array
     {
-        $stacks = array_filter($this->data['stacks'], fn (Stack $stack) => null === $stack->getParent());
+        $stacks = array_filter($this->data['stacks'], static fn (Stack $stack) => null === $stack->getParent());
 
-        return array_unique(array_map(fn (Stack $stack) => $stack->getClient(), $stacks));
+        return array_unique(array_map(static fn (Stack $stack) => $stack->getClient(), $stacks));
     }
 
     /**
      * @return Stack[]
      */
-    public function getClientRootStacks($client)
+    public function getClientRootStacks(string $client): array
     {
-        return array_filter($this->data['stacks'], fn (Stack $stack) => $stack->getClient() == $client && null == $stack->getParent());
+        return array_filter($this->data['stacks'], static fn (Stack $stack) => $stack->getClient() == $client && null == $stack->getParent());
     }
 
     /**
      * Count all messages for a client.
-     *
-     * @return int
      */
-    public function countClientMessages($client)
+    public function countClientMessages(string $client): int
     {
         return array_sum(array_map(fn (Stack $stack) => $this->countStackMessages($stack), $this->getClientRootStacks($client)));
     }
 
     /**
      * Recursively count message in stack.
-     *
-     * @return int
      */
-    private function countStackMessages(Stack $stack)
+    private function countStackMessages(Stack $stack): int
     {
         return 1 + array_sum(array_map(fn (Stack $child) => $this->countStackMessages($child), $this->getChildrenStacks($stack)));
     }
 
-    /**
-     * @return int
-     */
-    public function getTotalDuration()
+    public function getTotalDuration(): int
     {
-        return array_reduce($this->data['stacks'], fn ($carry, Stack $stack) => $carry + $stack->getDuration(), 0);
+        return array_reduce($this->data['stacks'], static fn ($carry, Stack $stack) => $carry + $stack->getDuration(), 0);
     }
 
     public function collect(Request $request, Response $response, $exception = null): void

src/Collector/Formatter.php

@@ -27,12 +27,7 @@ public function __construct(
     ) {
     }
 
-    /**
-     * Formats an exception.
-     *
-     * @return string
-     */
-    public function formatException(\Throwable $exception)
+    public function formatException(\Throwable $exception): string
     {
         if ($exception instanceof HttpException) {
             return $this->formatter->formatResponseForRequest($exception->getResponse(), $exception->getRequest());
@@ -45,12 +40,12 @@ public function formatException(\Throwable $exception)
         return sprintf('Unexpected exception of type "%s": %s', $exception::class, $exception->getMessage());
     }
 
-    public function formatRequest(RequestInterface $request)
+    public function formatRequest(RequestInterface $request): string
     {
         return $this->formatter->formatRequest($request);
     }
 
-    public function formatResponseForRequest(ResponseInterface $response, RequestInterface $request)
+    public function formatResponseForRequest(ResponseInterface $response, RequestInterface $request): string
     {
         if (method_exists($this->formatter, 'formatResponseForRequest')) {
             return $this->formatter->formatResponseForRequest($response, $request);
@@ -59,17 +54,15 @@ public function formatResponseForRequest(ResponseInterface $response, RequestInt
         return $this->formatter->formatResponse($response);
     }
 
-    public function formatResponse(ResponseInterface $response)
+    public function formatResponse(ResponseInterface $response): string
     {
         return $this->formatter->formatResponse($response);
     }
 
     /**
-     * Format a RequestInterface as a cURL command.
-     *
-     * @return string
+     * Format the RequestInterface as a cURL command that can be copied to the command line.
      */
-    public function formatAsCurlCommand(RequestInterface $request)
+    public function formatAsCurlCommand(RequestInterface $request): string
     {
         return $this->curlFormatter->formatRequest($request);
     }

src/Collector/PluginClientFactory.php

@@ -28,18 +28,15 @@ public function __construct(
     }
 
     /**
-     * @param ClientInterface|HttpAsyncClient $client
-     * @param Plugin[]                        $plugins
-     * @param array{client_name?: string}     $options
+     * @param Plugin[]                    $plugins
+     * @param array{client_name?: string} $options
      *
-     *        - client_name: to give client a name which may be used when displaying client information like in
-     *         the HTTPlugBundle profiler
+     * Options:
+     * - client_name: to give client a name which may be used when displaying client information like in the HTTPlugBundle profiler
      *
      * @see PluginClient constructor for PluginClient specific $options.
-     *
-     * @return PluginClient
      */
-    public function createClient($client, array $plugins = [], array $options = [])
+    public function createClient(HttpAsyncClient|ClientInterface $client, array $plugins = [], array $options = []): PluginClient
     {
         $plugins = array_map(fn (Plugin $plugin) => new ProfilePlugin($plugin, $this->collector, $this->formatter), $plugins);
 

src/Collector/PluginClientFactoryListener.php

@@ -26,7 +26,7 @@ public function __construct(private readonly PluginClientFactory $factory)
     /**
      * Make sure to profile clients created using PluginClientFactory.
      */
-    public function onEvent(Event $e)
+    public function onEvent(Event $e): void
     {
         DefaultPluginClientFactory::setFactory($this->factory->createClient(...));
     }