CurrentFileProvider should never be access by rule (#226)

* FileProvider should never be access by rule

* [ci-review] Rector Rectify

---------

Co-authored-by: GitHub Action <[email protected]>

Author: TomasVotruba

rules/DowngradePhp80/Rector/NullsafeMethodCall/DowngradeNullsafeToTernaryOperatorRector.php

@@ -12,9 +12,7 @@
 use PhpParser\Node\Expr\PropertyFetch;
 use PhpParser\Node\Expr\Ternary;
 use PhpParser\Node\Expr\Variable;
-use Rector\Provider\CurrentFileProvider;
 use Rector\Rector\AbstractRector;
-use Rector\ValueObject\Application\File;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
 
@@ -25,13 +23,16 @@ final class DowngradeNullsafeToTernaryOperatorRector extends AbstractRector
 {
     private int $counter = 0;
 
-    private ?string $previousFileName = null;
-
-    private ?string $currentFileName = null;
-
-    public function __construct(
-        private readonly CurrentFileProvider $currentFileProvider
-    ) {
+    /**
+     * Hack-ish way to reset counter for a new file, to avoid rising counter for each file
+     *
+     * @param Node[] $nodes
+     * @return array|Node[]|null
+     */
+    public function beforeTraverse(array $nodes): ?array
+    {
+        $this->counter = 0;
+        return parent::beforeTraverse($nodes);
     }
 
     public function getRuleDefinition(): RuleDefinition
@@ -62,22 +63,6 @@ public function getNodeTypes(): array
      */
     public function refactor(Node $node): ?Ternary
     {
-        if ($this->previousFileName === null) {
-            $previousFile = $this->currentFileProvider->getFile();
-            if (! $previousFile instanceof File) {
-                return null;
-            }
-
-            $this->previousFileName = $previousFile->getFilePath();
-        }
-
-        $currentFile = $this->currentFileProvider->getFile();
-        if (! $currentFile instanceof File) {
-            return null;
-        }
-
-        $this->currentFileName = $currentFile->getFilePath();
-
         $nullsafeVariable = $this->createNullsafeVariable();
 
         $methodCallOrPropertyFetch = $node instanceof NullsafeMethodCall
@@ -91,13 +76,7 @@ public function refactor(Node $node): ?Ternary
 
     private function createNullsafeVariable(): Variable
     {
-        if ($this->previousFileName !== $this->currentFileName) {
-            $this->counter = 0;
-            $this->previousFileName = $this->currentFileName;
-        }
-
         $nullsafeVariableName = 'nullsafeVariable' . ++$this->counter;
-
         return new Variable($nullsafeVariableName);
     }
 }