skip empty method on open-source

rules/dead-code/src/Rector/ClassMethod/RemoveUnusedParameterRector.php

@@ -223,6 +223,10 @@ PHP
             return true;
         }
 
+        if ($this->shouldSkipOpenSourceEmpty($classMethod)) {
+            return true;
+        }
+
         return $this->isAnonymousClass($class);
     }
 
@@ -243,4 +247,14 @@ PHP
 
         return $classMethod->isPublic();
     }
+
+    private function shouldSkipOpenSourceEmpty(ClassMethod $classMethod): bool
+    {
+        // skip as possible contract for 3rd party
+        if (! $this->isOpenSourceProjectType()) {
+            return false;
+        }
+
+        return empty($classMethod->getStmts());
+    }
 }

rules/dead-code/tests/Rector/ClassMethod/RemoveUnusedParameterRector/FixtureOpenSource/skip_empty_method_to_be_overridden.php.inc

@@ -0,0 +1,10 @@
+<?php
+
+namespace Rector\DeadCode\Tests\Rector\ClassMethod\RemoveUnusedParameterRector\FixtureOpenSource;
+
+class SkipEmptyMethodToBeOverridden
+{
+    public function foo(string $foo, string $bar)
+    {
+    }
+}