ArrayHelper::mergeRecursive() accepts no parameters

`ArrayHelper::traverse*()` have typed `iterable` first parameter

CHANGELOG.md

@@ -4,7 +4,12 @@ All notable changes to this project will be documented in this file. This projec
 to [Semantic Versioning] (http://semver.org/). For change log format,
 use [Keep a Changelog] (http://keepachangelog.com/).
 
-## [1.1.6] - 2021-05-03
+## [1.2.0] - 2021-05-03
+
+### Changed
+
+- `ArrayHelper::mergeRecursive()` accepts no parameters
+- `ArrayHelper::traverse*()` have typed `iterable` first parameter
 
 ### Fixed
 

src/ArrayHelper.php

@@ -93,13 +93,18 @@ public static function toXml($array, ?SimpleXMLElement $root = null, ?string $ro
      * b_array_merge_recursive() do not merge strings values
      * into an array.
      *
-     * @param array $arraySrc Array source
      * @param array[] $arrays Arrays to merge
      *
      * @return array
      */
-    public static function mergeRecursive(array $arraySrc, array ...$arrays): array
+    public static function mergeRecursive(array ...$arrays): array
     {
+        $arraySrc = array_shift($arrays);
+
+        if (null === $arraySrc) {
+            return [];
+        }
+
         foreach ($arrays as $array) {
             if (empty($array)) {
                 continue;
@@ -140,14 +145,9 @@ public static function mergeRecursive(array $arraySrc, array ...$arrays): array
      * @param string $path Path
      *
      * @return bool
-     * @throws InvalidArgumentException if first argument is not a traversable data
      */
-    public static function traverseExists(&$mixed, string $path): bool
+    public static function traverseExists(iterable &$mixed, string $path): bool
     {
-        if (!is_iterable($mixed)) {
-            throw new InvalidArgumentException('First argument must be a traversable mixed data');
-        }
-
         $path = explode('.', $path);
 
         $temp = &$mixed;
@@ -180,14 +180,9 @@ public static function traverseExists(&$mixed, string $path): bool
      * @param mixed $default Default value
      *
      * @return mixed|null
-     * @throws InvalidArgumentException if first argument is not a traversable data
      */
-    public static function traverseGet(&$mixed, string $path, $default = null)
+    public static function traverseGet(iterable &$mixed, string $path, $default = null)
     {
-        if (!is_iterable($mixed)) {
-            throw new InvalidArgumentException('First argument must be a traversable mixed data');
-        }
-
         $path = explode('.', $path);
 
         $temp = &$mixed;
@@ -220,14 +215,9 @@ public static function traverseGet(&$mixed, string $path, $default = null)
      * @param mixed $value Value
      *
      * @return bool
-     * @throws InvalidArgumentException if first argument is not a traversable data
      */
-    public static function traverseSet(&$mixed, string $path, $value): bool
+    public static function traverseSet(iterable &$mixed, string $path, $value): bool
     {
-        if (!is_iterable($mixed)) {
-            throw new InvalidArgumentException('First argument must be a traversable mixed data');
-        }
-
         $path = explode('.', $path);
 
         $temp = &$mixed;

src/bootstrap.php

@@ -43,14 +43,13 @@ function b_array_to_xml(array $array, ?SimpleXMLElement $root = null, ?string $r
  * b_array_merge_recursive() do not merge strings values
  * into an array.
  *
- * @param array $arraySrc Array source
  * @param array[] $arrays Arrays to merge
  *
  * @return array
  */
-function b_array_merge_recursive(array $arraySrc, array ...$arrays): array
+function b_array_merge_recursive(array ...$arrays): array
 {
-    return ArrayHelper::mergeRecursive($arraySrc, ...$arrays);
+    return ArrayHelper::mergeRecursive(...$arrays);
 }
 
 /**

tests/ArrayHelperTest.php

@@ -150,6 +150,8 @@ public function testMergeRecursive()
                 ['321' => '321 value'],
             )
         );
+
+        $this->assertEquals([], ArrayHelper::mergeRecursive());
     }
 
     public function testTraverseExists()