From 730d0682eea4359fa3027bca5077561c6c825ca0 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sun, 18 Dec 2022 16:30:09 +0100
Subject: [PATCH] Result: Add try_set_value_with_specific_error()

---
 luna/include/luna/Result.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/luna/include/luna/Result.h b/luna/include/luna/Result.h
index b012ffab..38143c7e 100644
--- a/luna/include/luna/Result.h
+++ b/luna/include/luna/Result.h
@@ -90,6 +90,13 @@ template <typename T> class Result
         return m_value.try_set_value(ref);
     }
 
+    Result<bool> try_set_value_with_specific_error(T& ref, int error)
+    {
+        if (has_error() && m_error != error) return release_error();
+
+        return m_value.try_set_value(ref);
+    }
+
     T release_value()
     {
         expect(has_value(), "Result::release_value() called on a Result that holds an error");