[type-declaration-docblocks] Skip empty array in ClassMethodArrayDocblockParamFromLocalCallsRector

rules-tests/TypeDeclarationDocblocks/Rector/Class_/ClassMethodArrayDocblockParamFromLocalCallsRector/Fixture/empty_array_no_type.php.inc

@@ -0,0 +1,40 @@
+<?php
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\Class_\ClassMethodArrayDocblockParamFromLocalCallsRector\Fixture;
+
+final class EmptyArrayNoType
+{
+    public function go($mixed)
+    {
+        $this->run(['item1', 'item2']);
+        $this->run([]);
+    }
+
+    private function run(array $items)
+    {
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\Class_\ClassMethodArrayDocblockParamFromLocalCallsRector\Fixture;
+
+final class EmptyArrayNoType
+{
+    public function go($mixed)
+    {
+        $this->run(['item1', 'item2']);
+        $this->run([]);
+    }
+
+    /**
+     * @param string[] $items
+     */
+    private function run(array $items)
+    {
+    }
+}
+
+?>

rules-tests/TypeDeclarationDocblocks/Rector/Class_/ClassMethodArrayDocblockParamFromLocalCallsRector/Fixture/skip_empty_array.php.inc

@@ -0,0 +1,15 @@
+<?php
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\Class_\ClassMethodArrayDocblockParamFromLocalCallsRector\Fixture;
+
+final class SkipEmptyArray
+{
+    public function go()
+    {
+        $this->run([]);
+    }
+
+    private function run(array $items)
+    {
+    }
+}

rules/TypeDeclaration/NodeAnalyzer/CallTypesResolver.php

@@ -5,6 +5,7 @@
 namespace Rector\TypeDeclaration\NodeAnalyzer;
 
 use PhpParser\Node\Arg;
+use PhpParser\Node\Expr\Array_;
 use PhpParser\Node\Expr\MethodCall;
 use PhpParser\Node\Expr\StaticCall;
 use PhpParser\Node\Identifier;
@@ -43,6 +44,11 @@ public function resolveStrictTypesFromCalls(array $calls): array
                     return [];
                 }
 
+                if ($arg->value instanceof Array_ && $arg->value->items === []) {
+                    // skip empty array, as it doesn't add any value
+                    continue;
+                }
+
                 $staticTypesByArgumentPosition[$position][] = $this->resolveStrictArgValueType($arg);
             }
         }