From d69fd87b5038850dc554bc6f536aa5d82a38f4e4 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Fri, 8 May 2020 21:38:47 +0200
Subject: [PATCH] AK: Add templated NonnullOwnPtr::release_nonnull()

This allows you to release a NonnullOwnPtr<T> into a NonnullOwnPtr<U>
---
 AK/NonnullOwnPtr.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/AK/NonnullOwnPtr.h b/AK/NonnullOwnPtr.h
index ddf2c6e50d..5b9dc53e49 100644
--- a/AK/NonnullOwnPtr.h
+++ b/AK/NonnullOwnPtr.h
@@ -155,6 +155,13 @@ public:
         ::swap(m_ptr, other.m_ptr);
     }
 
+    template<typename U>
+    NonnullOwnPtr<U> release_nonnull()
+    {
+        ASSERT(m_ptr);
+        return NonnullOwnPtr<U>(NonnullOwnPtr<U>::Adopt, static_cast<U&>(*leak_ptr()));
+    }
+
 private:
     void clear()
     {