From d18cc0845606c32e01e044ae5411c7053b1c73ec Mon Sep 17 00:00:00 2001
From: Jon Skeet <jonskeet@google.com>
Date: Thu, 30 Jul 2015 13:50:02 +0100
Subject: Generated code for previous commit.

---
 csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs')

diff --git a/csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs b/csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs
index c86dbada..04fb6350 100644
--- a/csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs
+++ b/csharp/src/Google.Protobuf/WellKnownTypes/SourceContext.cs
@@ -71,7 +71,7 @@ namespace Google.Protobuf.WellKnownTypes {
     public string FileName {
       get { return fileName_; }
       set {
-        fileName_ = value ?? "";
+        fileName_ = pb::Preconditions.CheckNotNull(value, "value");
       }
     }
 
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