From c3189b160ec0c9dd094d123574b8302aa9e3deaf Mon Sep 17 00:00:00 2001
From: Abdul Malik Ikhsan <samsonasik@gmail.com>
Date: Sat, 10 Jun 2023 17:13:22 +0700
Subject: [PATCH] [Php56] Remove parent lookup on UndefinedVariableResolver
 (#4155)

* [Php56] Remove parent lookup on UndefinedVariableResolver

* increase rector kernel cache key
---
 .../UndefinedVariableResolver.php             | 20 ++++++++++++-------
 src/Kernel/RectorKernel.php                   |  2 +-
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/rules/Php56/NodeAnalyzer/UndefinedVariableResolver.php b/rules/Php56/NodeAnalyzer/UndefinedVariableResolver.php
index ef4e5139e5a..312464662d7 100644
--- a/rules/Php56/NodeAnalyzer/UndefinedVariableResolver.php
+++ b/rules/Php56/NodeAnalyzer/UndefinedVariableResolver.php
@@ -28,7 +28,6 @@
 use PHPStan\Analyser\Scope;
 use Rector\Core\NodeAnalyzer\VariableAnalyzer;
 use Rector\Core\PhpParser\Comparing\NodeComparator;
-use Rector\Core\PhpParser\Node\BetterNodeFinder;
 use Rector\NodeNameResolver\NodeNameResolver;
 use Rector\NodeTypeResolver\Node\AttributeKey;
 use Rector\PhpDocParser\NodeTraverser\SimpleCallableNodeTraverser;
@@ -39,7 +38,6 @@ public function __construct(
         private readonly SimpleCallableNodeTraverser $simpleCallableNodeTraverser,
         private readonly NodeNameResolver $nodeNameResolver,
         private readonly NodeComparator $nodeComparator,
-        private readonly BetterNodeFinder $betterNodeFinder,
         private readonly VariableAnalyzer $variableAnalyzer
     ) {
     }
@@ -51,10 +49,12 @@ public function resolve(ClassMethod | Function_ | Closure $node): array
     {
         $undefinedVariables = [];
         $checkedVariables = [];
+        $currentStmt = null;
 
         $this->simpleCallableNodeTraverser->traverseNodesWithCallable((array) $node->stmts, function (Node $node) use (
             &$undefinedVariables,
-            &$checkedVariables
+            &$checkedVariables,
+            &$currentStmt
         ): ?int {
             // entering new scope - break!
             if ($node instanceof FunctionLike && ! $node instanceof ArrowFunction) {
@@ -71,6 +71,10 @@ public function resolve(ClassMethod | Function_ | Closure $node): array
                 return NodeTraverser::DONT_TRAVERSE_CURRENT_AND_CHILDREN;
             }
 
+            if ($node instanceof Stmt) {
+                $currentStmt = $node;
+            }
+
             if (! $node instanceof Variable) {
                 return null;
             }
@@ -89,7 +93,7 @@ public function resolve(ClassMethod | Function_ | Closure $node): array
                 return null;
             }
 
-            if ($this->hasVariableTypeOrCurrentStmtUnreachable($node, $variableName)) {
+            if ($this->hasVariableTypeOrCurrentStmtUnreachable($node, $variableName, $currentStmt)) {
                 return null;
             }
 
@@ -179,8 +183,11 @@ private function resolveCheckedVariablesFromArrayOrList(Node $node, array $check
         return $checkedVariables;
     }
 
-    private function hasVariableTypeOrCurrentStmtUnreachable(Variable $variable, ?string $variableName): bool
-    {
+    private function hasVariableTypeOrCurrentStmtUnreachable(
+        Variable $variable,
+        ?string $variableName,
+        ?Stmt $currentStmt
+    ): bool {
         if (! is_string($variableName)) {
             return true;
         }
@@ -192,7 +199,6 @@ private function hasVariableTypeOrCurrentStmtUnreachable(Variable $variable, ?st
             return true;
         }
 
-        $currentStmt = $this->betterNodeFinder->resolveCurrentStatement($variable);
         return $currentStmt instanceof Stmt && $currentStmt->getAttribute(AttributeKey::IS_UNREACHABLE) === true;
     }
 
diff --git a/src/Kernel/RectorKernel.php b/src/Kernel/RectorKernel.php
index 2441ebd1464..138f1ac838e 100644
--- a/src/Kernel/RectorKernel.php
+++ b/src/Kernel/RectorKernel.php
@@ -17,7 +17,7 @@ final class RectorKernel
     /**
      * @var string
      */
-    private const CACHE_KEY = 'v85';
+    private const CACHE_KEY = 'v86';
 
     private ContainerInterface|null $container = null;