[DX] Add default empty definition on getRuleDefinition() method on Ab…

…stractRector

scoper.php

@@ -71,20 +71,6 @@
             // comment out
             str_replace('\\' . $prefix . '\trigger_deprecation(', '// \trigger_deprecation(', $content),
 
-        // make external rules easier to write without enforing getRuleDefinition()
-        // as they are not designed for open-sourcing
-        static function (string $filePath, string $prefix, string $content): string {
-            if (! \str_ends_with(
-                $filePath,
-                'vendor/symplify/rule-doc-generator-contracts/src/Contract/DocumentedRuleInterface.php'
-            )) {
-                return $content;
-            }
-
-            // comment out
-            return str_replace('public function getRuleDefinition', '// public function getRuleDefinition', $content);
-        },
-
         static function (string $filePath, string $prefix, string $content): string {
             if (! \str_ends_with($filePath, 'src/Application/VersionResolver.php')) {
                 return $content;

src/Rector/AbstractRector.php

@@ -34,6 +34,7 @@
 use Rector\PhpParser\Node\NodeFactory;
 use Rector\Skipper\Skipper\Skipper;
 use Rector\ValueObject\Application\File;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
 
 abstract class AbstractRector extends NodeVisitorAbstract implements RectorInterface
 {
@@ -119,6 +120,11 @@ public function beforeTraverse(array $nodes): ?array
         return parent::beforeTraverse($nodes);
     }
 
+    public function getRuleDefinition(): RuleDefinition
+    {
+        return new RuleDefinition('', []);
+    }
+
     final public function enterNode(Node $node): int|Node|null
     {
         if (! $this->isMatchingNodeType($node)) {