allow empty array iterables

chevere · Feb 20, 2025 · 4914eaa · 4914eaa
1 parent 27c12b5
commit 4914eaa
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/IterableParameter.php b/src/IterableParameter.php
@@ -13,6 +13,7 @@
 
 namespace Chevere\Parameter;
 
+use Chevere\Parameter\Interfaces\ArrayParameterInterface;
 use Chevere\Parameter\Interfaces\IterableParameterInterface;
 use Chevere\Parameter\Interfaces\ParameterInterface;
 use Chevere\Parameter\Interfaces\TypeInterface;
@@ -34,6 +35,8 @@ final class IterableParameter implements IterableParameterInterface
      */
     private ?iterable $default = null;
 
+    private bool $isEmptyAllowed = false;
+
     public function __construct(
         private ParameterInterface $value,
         private ParameterInterface $key,
@@ -45,14 +48,16 @@ public function __construct(
             K: $this->key,
             V: $this->value
         );
+        $this->isEmptyAllowed = $this->value instanceof ArrayParameterInterface
+            && count($this->value->parameters()->requiredKeys()) === 0;
     }
 
     /**
      * @phpstan-ignore-next-line
      */
     public function __invoke(iterable $value): iterable
     {
-        if (empty($value)) {
+        if (empty($value) && ! $this->isEmptyAllowed) {
             throw new InvalidArgumentException(
                 (string) message('Argument value provided is empty')
             );