From 5c95b97c9d972816b2abd2add8dab15cc7ed1e6a Mon Sep 17 00:00:00 2001
From: Andriy Tolstoy <testfirstcoder@users.noreply.github.com>
Date: Tue, 12 Mar 2024 11:06:25 +0100
Subject: [PATCH] simplify read-only list conversion

---
 .../Messaging/Sequences/SequenceBase`1.cs                 | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/Silverback.Integration/Messaging/Sequences/SequenceBase`1.cs b/src/Silverback.Integration/Messaging/Sequences/SequenceBase`1.cs
index ff531d282..1483b93d4 100644
--- a/src/Silverback.Integration/Messaging/Sequences/SequenceBase`1.cs
+++ b/src/Silverback.Integration/Messaging/Sequences/SequenceBase`1.cs
@@ -230,17 +230,15 @@ public Task AbortAsync(SequenceAbortReason reason, Exception? exception = null)
         /// <inheritdoc cref="ISequence.GetBrokerMessageIdentifiers" />
         public IReadOnlyList<IBrokerMessageIdentifier> GetBrokerMessageIdentifiers()
         {
-            IReadOnlyList<IBrokerMessageIdentifier> identifiers = _messageIdentifiers?.AsReadOnlyList() ??
-                                                                  Array.Empty<IBrokerMessageIdentifier>();
+            var identifiers = _messageIdentifiers ?? Enumerable.Empty<IBrokerMessageIdentifier>();
 
             if (_sequences != null)
             {
                 identifiers = identifiers
-                    .Union(_sequences.SelectMany(sequence => sequence.GetBrokerMessageIdentifiers()))
-                    .AsReadOnlyList();
+                    .Union(_sequences.SelectMany(sequence => sequence.GetBrokerMessageIdentifiers()));
             }
 
-            return identifiers;
+            return identifiers.AsReadOnlyList();
         }
 
         /// <inheritdoc cref="IDisposable.Dispose" />