From c58b55796da01a2bf580e759c234933b872310a4 Mon Sep 17 00:00:00 2001
From: TomasVotruba <tomas.vot@gmail.com>
Date: Thu, 19 Oct 2017 01:02:47 +0200
Subject: [PATCH] decouple to AbstractRector

---
 src/Rector/AbstractRector.php                 | 73 +++++++++++++++++++
 .../Nette/DI/CompilerArgumentsRector.php      | 59 +--------------
 .../PseudoNamespaceToNamespaceRector.php      | 12 +--
 3 files changed, 79 insertions(+), 65 deletions(-)

diff --git a/src/Rector/AbstractRector.php b/src/Rector/AbstractRector.php
index 932df4540bf..238009b541c 100644
--- a/src/Rector/AbstractRector.php
+++ b/src/Rector/AbstractRector.php
@@ -3,10 +3,14 @@
 namespace Rector\Rector;
 
 use PhpParser\Node;
+use PhpParser\Node\Expr;
+use PhpParser\Node\Stmt\Expression;
 use PhpParser\Node\Stmt\Nop;
 use PhpParser\NodeTraverser;
 use PhpParser\NodeVisitorAbstract;
 use Rector\Contract\Rector\RectorInterface;
+use Rector\Node\Attribute;
+use SplObjectStorage;
 
 abstract class AbstractRector extends NodeVisitorAbstract implements RectorInterface
 {
@@ -15,6 +19,22 @@ abstract class AbstractRector extends NodeVisitorAbstract implements RectorInter
      */
     protected $shouldRemoveNode = false;
 
+    /**
+     * @var SplObjectStorage|Expression[]
+     */
+    private $expressionsToPrepend = [];
+
+    /**
+     * @param Node[] $nodes
+     * @return Node[]
+     */
+    final public function beforeTraverse(array $nodes): array
+    {
+        $this->expressionsToPrepend = new SplObjectStorage;
+
+        return $nodes;
+    }
+
     /**
      * @return null|int|Node
      */
@@ -44,4 +64,57 @@ abstract class AbstractRector extends NodeVisitorAbstract implements RectorInter
 
         return null;
     }
+
+    /**
+     * @param Node[] $nodes
+     * @return Node[]
+     */
+    public function afterTraverse(array $nodes): array
+    {
+        return $this->prependExpressionNodes($nodes);
+    }
+
+    protected function prependNodeBehindNode(Expr $nodeToPrepend, Node $positionNode): void
+    {
+        /** @var Node $parentNode */
+        $parentNode = $positionNode->getAttribute(Attribute::PARENT_NODE);
+        if (! $parentNode instanceof Expression) {
+            // validate?
+            return;
+        }
+
+        $expressionToPrepend = new Expression($nodeToPrepend);
+
+        if (isset($this->expressionsToPrepend[$parentNode])) {
+            $this->expressionsToPrepend[$parentNode] = array_merge(
+                $this->expressionsToPrepend[$parentNode],
+                [$expressionToPrepend]
+            );
+        } else {
+            $this->expressionsToPrepend[$parentNode] = [$expressionToPrepend];
+        }
+    }
+
+    /**
+     * @param Node[] $nodes
+     * @return Node[] array
+     */
+    private function prependExpressionNodes(array $nodes): array
+    {
+        foreach ($nodes as $i => $node) {
+            if ($node instanceof Expression) {
+                if (! isset($this->expressionsToPrepend[$node])) {
+                    continue;
+                }
+
+                array_splice($nodes, $i + 1, 0, $this->expressionsToPrepend[$node]);
+
+                unset($this->expressionsToPrepend[$node]);
+            } elseif (isset($node->stmts)) {
+                $node->stmts = $this->prependExpressionNodes($node->stmts);
+            }
+        }
+
+        return $nodes;
+    }
 }
diff --git a/src/Rector/Contrib/Nette/DI/CompilerArgumentsRector.php b/src/Rector/Contrib/Nette/DI/CompilerArgumentsRector.php
index 6dd30e63c72..a050f0e8d8b 100644
--- a/src/Rector/Contrib/Nette/DI/CompilerArgumentsRector.php
+++ b/src/Rector/Contrib/Nette/DI/CompilerArgumentsRector.php
@@ -5,12 +5,8 @@ namespace Rector\Rector\Contrib\Nette\DI;
 use PhpParser\Node;
 use PhpParser\Node\Arg;
 use PhpParser\Node\Expr\MethodCall;
-use PhpParser\Node\Stmt\Expression;
-use Rector\Builder\StatementGlue;
-use Rector\Node\Attribute;
 use Rector\NodeAnalyzer\MethodCallAnalyzer;
 use Rector\Rector\AbstractRector;
-use SplObjectStorage;
 
 /**
  * Nette\DI\Compiler::compile arguments are deprecated, use Compiler::addConfig() and Compiler::setClassName().
@@ -30,21 +26,9 @@ final class CompilerArgumentsRector extends AbstractRector
      */
     private $methodCallAnalyzer;
 
-    /**
-     * @var SplObjectStorage|Expression[]
-     */
-    private $expressionsToPrepend = [];
-
-    /**
-     * @var StatementGlue
-     */
-    private $statementGlue;
-
-    public function __construct(MethodCallAnalyzer $methodCallAnalyzer, StatementGlue $statementGlue)
+    public function __construct(MethodCallAnalyzer $methodCallAnalyzer)
     {
-        $this->expressionsToPrepend = new SplObjectStorage;
         $this->methodCallAnalyzer = $methodCallAnalyzer;
-        $this->statementGlue = $statementGlue;
     }
 
     public function isCandidate(Node $node): bool
@@ -57,31 +41,19 @@ final class CompilerArgumentsRector extends AbstractRector
         return count($node->args) >= 1;
     }
 
-    /**
-     * @todo build into abstract?
-     *
-     * @param Node[] $nodes
-     * @return Node[]
-     */
-    public function afterTraverse(array $nodes): array
-    {
-        return $this->processNodes($nodes);
-    }
-
     /**
      * @param MethodCall $methodCallNode
      */
     public function refactor(Node $methodCallNode): ?Node
     {
         $oldArguments = $methodCallNode->args;
-        $nodesToPrepend = [];
 
         $addConfigMethodCallNode = $this->cloneMethodWithNameAndArgument(
             $methodCallNode,
             'addConfig',
             $oldArguments[0]
         );
-        $nodesToPrepend[] = new Expression($addConfigMethodCallNode);
+        $this->prependNodeBehindNode($addConfigMethodCallNode, $methodCallNode);
 
         if (isset($oldArguments[1])) {
             $setClassNameMethodCallNode = $this->cloneMethodWithNameAndArgument(
@@ -89,39 +61,14 @@ final class CompilerArgumentsRector extends AbstractRector
                 'setClassName',
                 $oldArguments[1]
             );
-            $nodesToPrepend[] = new Expression($setClassNameMethodCallNode);
+            $this->prependNodeBehindNode($setClassNameMethodCallNode, $methodCallNode);
         }
 
-        $parentExpressionNode = $methodCallNode->getAttribute(Attribute::PARENT_NODE);
-        $this->expressionsToPrepend[$parentExpressionNode] = $nodesToPrepend;
-
         $methodCallNode->args = [];
 
         return $methodCallNode;
     }
 
-    /**
-     * @param Node[] $nodes
-     * @return Node[] array
-     */
-    private function processNodes(array $nodes): array
-    {
-        foreach ($nodes as $i => $node) {
-            if ($node instanceof Expression) {
-                if (! isset($this->expressionsToPrepend[$node])) {
-                    continue;
-                }
-
-                $nodes = $this->statementGlue->insertNewNodesAfter($nodes, $this->expressionsToPrepend[$node], $i);
-                $this->expressionsToPrepend[$node] = null;
-            } elseif (isset($node->stmts)) {
-                $node->stmts = $this->processNodes($node->stmts);
-            }
-        }
-
-        return $nodes;
-    }
-
     private function cloneMethodWithNameAndArgument(
         MethodCall $methodCallNode,
         string $method,
diff --git a/src/Rector/Dynamic/PseudoNamespaceToNamespaceRector.php b/src/Rector/Dynamic/PseudoNamespaceToNamespaceRector.php
index 9bb92e9e65e..e8a92e3b357 100644
--- a/src/Rector/Dynamic/PseudoNamespaceToNamespaceRector.php
+++ b/src/Rector/Dynamic/PseudoNamespaceToNamespaceRector.php
@@ -55,15 +55,6 @@ final class PseudoNamespaceToNamespaceRector extends AbstractRector
         $this->statementGlue = $statementGlue;
     }
 
-    /**
-     * @param mixed[] $nodes
-     */
-    public function beforeTraverse(array $nodes): void
-    {
-        $this->newNamespace = null;
-        $this->oldToNewUseStatements = [];
-    }
-
     public function isCandidate(Node $node): bool
     {
         $name = $this->resolveNameFromNode($node);
@@ -134,6 +125,9 @@ final class PseudoNamespaceToNamespaceRector extends AbstractRector
             }
         }
 
+        $this->newNamespace = null;
+        $this->oldToNewUseStatements = [];
+
         return $nodes;
     }