diff --git a/easy-coding-standard.neon b/easy-coding-standard.neon
index 454ebdfc47d..583aa02a35c 100644
--- a/easy-coding-standard.neon
+++ b/easy-coding-standard.neon
@@ -25,6 +25,7 @@ checkers:
             - 'Rector\DeprecationExtractor\Deprecation\*'
             - 'Rector\BetterReflection\SourceLocator\Located\LocatedSource'
             - 'phpDocumentor\Reflection\Types\*'
+            - 'Rector\Reporting\FileDiff'
 
     Symplify\CodingStandard\Fixer\Naming\PropertyNameMatchingTypeFixer:
         extra_skipped_classes:
diff --git a/src/Console/Command/ProcessCommand.php b/src/Console/Command/ProcessCommand.php
index fea29449ee8..88e21b90e2f 100644
--- a/src/Console/Command/ProcessCommand.php
+++ b/src/Console/Command/ProcessCommand.php
@@ -13,6 +13,7 @@ use Rector\Exception\NoRectorsLoadedException;
 use Rector\FileSystem\PhpFilesFinder;
 use Rector\Naming\CommandNaming;
 use Rector\Rector\RectorCollector;
+use Rector\Reporting\FileDiff;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputInterface;
@@ -65,9 +66,9 @@ final class ProcessCommand extends Command
     private $changedFiles = [];
 
     /**
-     * @var string[][]
+     * @var FileDiff[]
      */
-    private $diffFiles = [];
+    private $fileDiffs = [];
 
     /**
      * @var AdditionalAutoloader
@@ -136,7 +137,7 @@ final class ProcessCommand extends Command
 
         $this->processFiles($files);
 
-        $this->processCommandReporter->reportDiffFiles($this->diffFiles);
+        $this->processCommandReporter->reportFileDiffs($this->fileDiffs);
         $this->processCommandReporter->reportChangedFiles($this->changedFiles);
         $this->consoleStyle->success('Rector is done!');
 
@@ -189,10 +190,10 @@ final class ProcessCommand extends Command
         if ($this->parameterProvider->provideParameter(Option::OPTION_DRY_RUN)) {
             $newContent = $this->fileProcessor->processFileToString($fileInfo);
             if ($newContent !== $oldContent) {
-                $this->diffFiles[] = [
-                    'file' => $fileInfo->getPathname(),
-                    'diff' => $this->differAndFormatter->diffAndFormat($oldContent, $newContent),
-                ];
+                $this->fileDiffs[] = new FileDiff(
+                    $fileInfo->getPathname(),
+                    $this->differAndFormatter->diffAndFormat($oldContent, $newContent)
+                );
             }
         } else {
             $newContent = $this->fileProcessor->processFile($fileInfo);
diff --git a/src/Console/Output/ProcessCommandReporter.php b/src/Console/Output/ProcessCommandReporter.php
index 81e6fe6ec59..f35e5844920 100644
--- a/src/Console/Output/ProcessCommandReporter.php
+++ b/src/Console/Output/ProcessCommandReporter.php
@@ -5,6 +5,7 @@ namespace Rector\Console\Output;
 use Rector\Console\ConsoleStyle;
 use Rector\Contract\Rector\RectorInterface;
 use Rector\Rector\RectorCollector;
+use Rector\Reporting\FileDiff;
 
 final class ProcessCommandReporter
 {
@@ -57,25 +58,25 @@ final class ProcessCommandReporter
     }
 
     /**
-     * @param string[][] $diffFiles
+     * @param FileDiff[] $fileDiffs
      */
-    public function reportDiffFiles(array $diffFiles): void
+    public function reportFileDiffs(array $fileDiffs): void
     {
-        if (count($diffFiles) <= 0) {
+        if (count($fileDiffs) <= 0) {
             return;
         }
 
         $this->consoleStyle->title(sprintf(
             '%d file%s with changes',
-            count($diffFiles),
-            count($diffFiles) === 1 ? '' : 's'
+            count($fileDiffs),
+            count($fileDiffs) === 1 ? '' : 's'
         ));
 
         $i = 0;
-        foreach ($diffFiles as $diffFile) {
-            $this->consoleStyle->writeln(sprintf('<options=bold>%d) %s</>', ++$i, $diffFile['file']));
+        foreach ($fileDiffs as $fileDiff) {
+            $this->consoleStyle->writeln(sprintf('<options=bold>%d) %s</>', ++$i, $fileDiff->getFile()));
             $this->consoleStyle->newLine();
-            $this->consoleStyle->writeln($diffFile['diff']);
+            $this->consoleStyle->writeln($fileDiff->getDiff());
             $this->consoleStyle->newLine();
         }
     }
diff --git a/src/Reporting/FileDiff.php b/src/Reporting/FileDiff.php
new file mode 100644
index 00000000000..8453b57f3c7
--- /dev/null
+++ b/src/Reporting/FileDiff.php
@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+
+namespace Rector\Reporting;
+
+final class FileDiff
+{
+    /**
+     * @var string
+     */
+    private $diff;
+
+    /**
+     * @var string
+     */
+    private $file;
+
+    public function __construct(string $file, string $diff)
+    {
+        $this->file = $file;
+        $this->diff = $diff;
+    }
+
+    public function getDiff(): string
+    {
+        return $this->diff;
+    }
+
+    public function getFile(): string
+    {
+        return $this->file;
+    }
+}
diff --git a/src/config/services.yml b/src/config/services.yml
index b723dc70233..a714fc5cc09 100644
--- a/src/config/services.yml
+++ b/src/config/services.yml
@@ -5,7 +5,7 @@ services:
 
     Rector\:
         resource: '../'
-        exclude: '../{Node/Attribute.php,Rector/Contrib/**/*Rector.php,Rector/Dynamic,Rector/MagicDisclosure,Testing}'
+        exclude: '../{Node/Attribute.php,Rector/Contrib/**/*Rector.php,Rector/Dynamic,Rector/MagicDisclosure,Reporting/FileDiff.php,Testing}'
 
     Rector\Rector\Contrib\Symfony\Form\Helper\FormTypeStringToTypeProvider: ~