From c4bac67464cfb52f998a2f942a85adedfad04895 Mon Sep 17 00:00:00 2001
From: Allen <caizz520@gmail.com>
Date: Wed, 25 Jan 2023 08:55:05 -0800
Subject: [PATCH] Make the MergeFrom method of type ReadOnlySequence<byte>
 public (#11124)

(Edited by jskeet) For public release notes:

Add a public `IMessage.MergeFrom(ReadOnlySequence<byte>)` extension method, exposing existing internal functionality.
(Parsing a completely new message from `ReadOnlySequence<byte>` was already publicly available, just not merging.)

----
Public the `MergeFrom` method of type `ReadOnlySequence<byte>`.

We found that the `MergeFrom` method of type `ReadOnlySequence<byte>` is internal.

**We need it !!!**

Closes #11124

COPYBARA_INTEGRATE_REVIEW=https://github.com/protocolbuffers/protobuf/pull/11124 from VAllens:patch-1 0ddea03042823bf8ce6834f1498f6a70e319e98c
PiperOrigin-RevId: 504575534
---
 csharp/src/Google.Protobuf/MessageExtensions.cs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/csharp/src/Google.Protobuf/MessageExtensions.cs b/csharp/src/Google.Protobuf/MessageExtensions.cs
index 22d3a2fb80dd..714505a2c1c0 100644
--- a/csharp/src/Google.Protobuf/MessageExtensions.cs
+++ b/csharp/src/Google.Protobuf/MessageExtensions.cs
@@ -88,6 +88,15 @@ public static void MergeFrom(this IMessage message, Stream input) =>
         public static void MergeFrom(this IMessage message, ReadOnlySpan<byte> span) =>
             MergeFrom(message, span, false, null);
 
+        /// <summary>
+        /// Merges data from the given sequence into an existing message.
+        /// </summary>
+        /// <param name="message">The message to merge the data into.</param>
+        /// <param name="sequence">Sequence from the specified data to merge, which must be protobuf-encoded binary data.</param>
+        [SecuritySafeCritical]
+        public static void MergeFrom(this IMessage message, ReadOnlySequence<byte> sequence) =>
+            MergeFrom(message, sequence, false, null);
+
         /// <summary>
         /// Merges length-delimited data from the given stream into an existing message.
         /// </summary>