skip mixed type as not informative in AddParamArrayDocblockFromDataProviderRector (#7279)

Author: TomasVotruba

rules-tests/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector/Fixture/skip_mixed.php.inc

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\ClassMethod\AddParamArrayDocblockFromDataProviderRector\Fixture;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class SkipMixed extends TestCase
+{
+    #[DataProvider('provideData')]
+    public function test(array $names): void
+    {
+    }
+
+    public static function provideData($item, $item2)
+    {
+        yield [[$item, $item2]];
+        yield [[$item, $item2]];
+    }
+}

rules/TypeDeclarationDocblocks/Rector/ClassMethod/AddParamArrayDocblockFromDataProviderRector.php

@@ -7,6 +7,8 @@
 use PhpParser\Node;
 use PhpParser\Node\Stmt\Class_;
 use PHPStan\PhpDocParser\Ast\PhpDoc\ParamTagValueNode;
+use PHPStan\Type\ArrayType;
+use PHPStan\Type\MixedType;
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
 use Rector\Comments\NodeDocBlock\DocBlockUpdater;
 use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
@@ -144,6 +146,11 @@ public function refactor(Node $node): ?Node
                     $dataProviderNodes->getClassMethods()
                 );
 
+                // skip mixed type, as it is not informative
+                if ($parameterType instanceof ArrayType && $parameterType->getItemType() instanceof MixedType) {
+                    continue;
+                }
+
                 $generalizedParameterType = $this->typeNormalizer->generalizeConstantTypes($parameterType);
 
                 $parameterTypeNode = $this->staticTypeMapper->mapPHPStanTypeToPHPStanPhpDocTypeNode(