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Diffstat (limited to 'csharp/ProtocolBuffers/ByteString.cs')
-rw-r--r--csharp/ProtocolBuffers/ByteString.cs2
1 files changed, 1 insertions, 1 deletions
diff --git a/csharp/ProtocolBuffers/ByteString.cs b/csharp/ProtocolBuffers/ByteString.cs
index 8a7909e3..13b9c159 100644
--- a/csharp/ProtocolBuffers/ByteString.cs
+++ b/csharp/ProtocolBuffers/ByteString.cs
@@ -159,7 +159,7 @@ namespace Google.ProtocolBuffers {
/// copying being involved. This has to be a nested type in order to have access
/// to the private ByteString constructor.
/// </summary>
- internal class CodedBuilder {
+ internal sealed class CodedBuilder {
private readonly CodedOutputStream output;
private readonly byte[] buffer;