Merge branch 'master' into 3.2-merge

Author: limingxinleo

src/Fluent.php

@@ -13,12 +13,15 @@
 namespace Hyperf\Support;
 
 use ArrayAccess;
+use ArrayIterator;
 use Closure;
 use Hyperf\Collection\Arr;
 use Hyperf\Contract\Arrayable;
 use Hyperf\Contract\Jsonable;
 use Hyperf\Macroable\Macroable;
+use IteratorAggregate;
 use JsonSerializable;
+use Traversable;
 
 use function Hyperf\Collection\data_get;
 use function Hyperf\Collection\data_set;
@@ -33,10 +36,10 @@
  * @implements \Hyperf\Contract\Arrayable<TKey, TValue>
  * @implements ArrayAccess<TKey, TValue>
  */
-class Fluent implements ArrayAccess, Arrayable, Jsonable, JsonSerializable
+class Fluent implements ArrayAccess, Arrayable, IteratorAggregate, Jsonable, JsonSerializable
 {
     use Traits\InteractsWithData;
-    use Macroable{
+    use Macroable {
         __call as macroCall;
     }
 
@@ -227,6 +230,26 @@ public function getAttributes()
         return $this->attributes;
     }
 
+    /**
+     * Determine if the fluent instance is empty.
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return empty($this->attributes);
+    }
+
+    /**
+     * Determine if the fluent instance is not empty.
+     *
+     * @return bool
+     */
+    public function isNotEmpty()
+    {
+        return ! $this->isEmpty();
+    }
+
     /**
      * Convert the fluent instance to an array.
      *
@@ -297,6 +320,16 @@ public function offsetUnset(mixed $offset): void
         unset($this->attributes[$offset]);
     }
 
+    /**
+     * Get an iterator for the attributes.
+     *
+     * @return ArrayIterator<TKey, TValue>
+     */
+    public function getIterator(): Traversable
+    {
+        return new ArrayIterator($this->attributes);
+    }
+
     /**
      * Get data from the fluent instance.
      *