Allow Phpredis raw command to have 0 arguments

Author: MacFJA

CHANGELOG.md

@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased v2.x]
 
+### Fixed
+
+- Allow Phpredis raw command to have 0 arguments ([Issue#39])
+
 ### Changed
 
 - (dev) Update version and rules of PHP-CS-Fixer and PHPStan
@@ -196,6 +200,7 @@ First version
 [Issue#12]: https://github.com/MacFJA/php-redisearch/issues/12
 [Issue#16]: https://github.com/MacFJA/php-redisearch/issues/16
 [Issue#26]: https://github.com/MacFJA/php-redisearch/issues/26
+[Issue#39]: https://github.com/MacFJA/php-redisearch/issues/39
 [PR#1]: https://github.com/MacFJA/php-redisearch/pull/1
 [PR#3]: https://github.com/MacFJA/php-redisearch/pull/3
 [PR#8]: https://github.com/MacFJA/php-redisearch/pull/8

src/Redis/Client/AmpRedisClient.php

@@ -21,6 +21,7 @@
 
 namespace MacFJA\RediSearch\Redis\Client;
 
+use Amp\Promise;
 use function Amp\Promise\wait;
 use Amp\Redis\Redis;
 use function function_exists;
@@ -50,14 +51,19 @@ public static function make($redis): Client
 
     public function execute(Command $command)
     {
-        $result = wait($this->redis->query($command->getId(), ...array_map('strval', $command->getArguments())));
+        /** @var Promise<mixed> $query */
+        $query = $this->redis->query($command->getId(), ...array_map('strval', $command->getArguments()));
+        $result = wait($query);
 
         return $command->parseResponse($result);
     }
 
     public function executeRaw(...$args)
     {
-        return wait($this->redis->query(...array_map('strval', $args)));
+        /** @var Promise<mixed> $query */
+        $query = $this->redis->query(...array_map('strval', $args));
+
+        return wait($query);
     }
 
     public static function supports($redis): bool

src/Redis/Client/PhpredisClient.php

@@ -49,9 +49,11 @@ public function execute(Command $command)
     {
         $arguments = $command->getArguments();
         if (0 === count($arguments)) {
-            $arguments = [null];
+            /** @psalm-suppress TooFewArguments */
+            $rawResponse = $this->redis->rawCommand($command->getId());
+        } else {
+            $rawResponse = $this->redis->rawCommand($command->getId(), ...$arguments);
         }
-        $rawResponse = $this->redis->rawCommand($command->getId(), ...$arguments);
 
         return $command->parseResponse($rawResponse);
     }
@@ -74,9 +76,6 @@ public function executeRaw(...$args)
         if (count($args) < 1) {
             return null;
         }
-        if (count($args) < 2) {
-            $args[] = null;
-        }
         // @phpstan-ignore-next-line
         return $this->redis->rawCommand(...$args);
     }