Regenerated code due to previous commit.

Note that now we need a proto3 version of addressbook.proto. This may affect other platforms, and could do with an overhaul to follow proto3 conventions anyway (e.g. repeated field names). Will need to think about that carefully before merging into master. Raised issue #565 for this.

5 files changed, 528 insertions, 176 deletions

diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/MapUnittestProto3.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/MapUnittestProto3.cs
index 365c03a7..55434c53 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/MapUnittestProto3.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/MapUnittestProto3.cs
@@ -359,9 +359,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestMap() { }
+    public TestMap() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestMap(TestMap other) {
+    public TestMap(TestMap other) : this() {
       mapInt32Int32_ = other.mapInt32Int32_.Clone();
       mapInt64Int64_ = other.mapInt64Int64_.Clone();
       mapUint32Uint32_ = other.mapUint32Uint32_.Clone();
@@ -767,9 +771,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32Int32Entry() { }
+        public MapInt32Int32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32Int32Entry(MapInt32Int32Entry other) {
+        public MapInt32Int32Entry(MapInt32Int32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -905,9 +913,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt64Int64Entry() { }
+        public MapInt64Int64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt64Int64Entry(MapInt64Int64Entry other) {
+        public MapInt64Int64Entry(MapInt64Int64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1043,9 +1055,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapUint32Uint32Entry() { }
+        public MapUint32Uint32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapUint32Uint32Entry(MapUint32Uint32Entry other) {
+        public MapUint32Uint32Entry(MapUint32Uint32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1181,9 +1197,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapUint64Uint64Entry() { }
+        public MapUint64Uint64Entry() {
+          OnConstruction();
+        }
 
-        public MapUint64Uint64Entry(MapUint64Uint64Entry other) {
+        partial void OnConstruction();
+
+        public MapUint64Uint64Entry(MapUint64Uint64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1319,9 +1339,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSint32Sint32Entry() { }
+        public MapSint32Sint32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSint32Sint32Entry(MapSint32Sint32Entry other) {
+        public MapSint32Sint32Entry(MapSint32Sint32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1457,9 +1481,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSint64Sint64Entry() { }
+        public MapSint64Sint64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSint64Sint64Entry(MapSint64Sint64Entry other) {
+        public MapSint64Sint64Entry(MapSint64Sint64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1595,9 +1623,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapFixed32Fixed32Entry() { }
+        public MapFixed32Fixed32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapFixed32Fixed32Entry(MapFixed32Fixed32Entry other) {
+        public MapFixed32Fixed32Entry(MapFixed32Fixed32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1733,9 +1765,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapFixed64Fixed64Entry() { }
+        public MapFixed64Fixed64Entry() {
+          OnConstruction();
+        }
 
-        public MapFixed64Fixed64Entry(MapFixed64Fixed64Entry other) {
+        partial void OnConstruction();
+
+        public MapFixed64Fixed64Entry(MapFixed64Fixed64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -1871,9 +1907,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSfixed32Sfixed32Entry() { }
+        public MapSfixed32Sfixed32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSfixed32Sfixed32Entry(MapSfixed32Sfixed32Entry other) {
+        public MapSfixed32Sfixed32Entry(MapSfixed32Sfixed32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2009,9 +2049,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSfixed64Sfixed64Entry() { }
+        public MapSfixed64Sfixed64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSfixed64Sfixed64Entry(MapSfixed64Sfixed64Entry other) {
+        public MapSfixed64Sfixed64Entry(MapSfixed64Sfixed64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2147,9 +2191,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32FloatEntry() { }
+        public MapInt32FloatEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32FloatEntry(MapInt32FloatEntry other) {
+        public MapInt32FloatEntry(MapInt32FloatEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2285,9 +2333,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32DoubleEntry() { }
+        public MapInt32DoubleEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32DoubleEntry(MapInt32DoubleEntry other) {
+        public MapInt32DoubleEntry(MapInt32DoubleEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2423,9 +2475,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapBoolBoolEntry() { }
+        public MapBoolBoolEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapBoolBoolEntry(MapBoolBoolEntry other) {
+        public MapBoolBoolEntry(MapBoolBoolEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2561,9 +2617,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapStringStringEntry() { }
+        public MapStringStringEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapStringStringEntry(MapStringStringEntry other) {
+        public MapStringStringEntry(MapStringStringEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2699,9 +2759,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32BytesEntry() { }
+        public MapInt32BytesEntry() {
+          OnConstruction();
+        }
 
-        public MapInt32BytesEntry(MapInt32BytesEntry other) {
+        partial void OnConstruction();
+
+        public MapInt32BytesEntry(MapInt32BytesEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2837,9 +2901,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32EnumEntry() { }
+        public MapInt32EnumEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32EnumEntry(MapInt32EnumEntry other) {
+        public MapInt32EnumEntry(MapInt32EnumEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -2975,9 +3043,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32ForeignMessageEntry() { }
+        public MapInt32ForeignMessageEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32ForeignMessageEntry(MapInt32ForeignMessageEntry other) {
+        public MapInt32ForeignMessageEntry(MapInt32ForeignMessageEntry other) : this() {
           key_ = other.key_;
           Value = other.value_ != null ? other.Value.Clone() : null;
         }
@@ -3125,9 +3197,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestMapSubmessage() { }
+    public TestMapSubmessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestMapSubmessage(TestMapSubmessage other) {
+    public TestMapSubmessage(TestMapSubmessage other) : this() {
       TestMap = other.testMap_ != null ? other.TestMap.Clone() : null;
     }
 
@@ -3243,9 +3319,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestMessageMap() { }
+    public TestMessageMap() {
+      OnConstruction();
+    }
 
-    public TestMessageMap(TestMessageMap other) {
+    partial void OnConstruction();
+
+    public TestMessageMap(TestMessageMap other) : this() {
       mapInt32Message_ = other.mapInt32Message_.Clone();
     }
 
@@ -3347,9 +3427,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32MessageEntry() { }
+        public MapInt32MessageEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32MessageEntry(MapInt32MessageEntry other) {
+        public MapInt32MessageEntry(MapInt32MessageEntry other) : this() {
           key_ = other.key_;
           Value = other.value_ != null ? other.Value.Clone() : null;
         }
@@ -3497,9 +3581,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestSameTypeMap() { }
+    public TestSameTypeMap() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestSameTypeMap(TestSameTypeMap other) {
+    public TestSameTypeMap(TestSameTypeMap other) : this() {
       map1_ = other.map1_.Clone();
       map2_ = other.map2_.Clone();
     }
@@ -3620,9 +3708,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public Map1Entry() { }
+        public Map1Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public Map1Entry(Map1Entry other) {
+        public Map1Entry(Map1Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -3758,9 +3850,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public Map2Entry() { }
+        public Map2Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public Map2Entry(Map2Entry other) {
+        public Map2Entry(Map2Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -3901,9 +3997,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestArenaMap() { }
+    public TestArenaMap() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestArenaMap(TestArenaMap other) {
+    public TestArenaMap(TestArenaMap other) : this() {
       mapInt32Int32_ = other.mapInt32Int32_.Clone();
       mapInt64Int64_ = other.mapInt64Int64_.Clone();
       mapUint32Uint32_ = other.mapUint32Uint32_.Clone();
@@ -4271,9 +4371,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32Int32Entry() { }
+        public MapInt32Int32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32Int32Entry(MapInt32Int32Entry other) {
+        public MapInt32Int32Entry(MapInt32Int32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -4409,9 +4513,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt64Int64Entry() { }
+        public MapInt64Int64Entry() {
+          OnConstruction();
+        }
 
-        public MapInt64Int64Entry(MapInt64Int64Entry other) {
+        partial void OnConstruction();
+
+        public MapInt64Int64Entry(MapInt64Int64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -4547,9 +4655,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapUint32Uint32Entry() { }
+        public MapUint32Uint32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapUint32Uint32Entry(MapUint32Uint32Entry other) {
+        public MapUint32Uint32Entry(MapUint32Uint32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -4685,9 +4797,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapUint64Uint64Entry() { }
+        public MapUint64Uint64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapUint64Uint64Entry(MapUint64Uint64Entry other) {
+        public MapUint64Uint64Entry(MapUint64Uint64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -4823,9 +4939,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSint32Sint32Entry() { }
+        public MapSint32Sint32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSint32Sint32Entry(MapSint32Sint32Entry other) {
+        public MapSint32Sint32Entry(MapSint32Sint32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -4961,9 +5081,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSint64Sint64Entry() { }
+        public MapSint64Sint64Entry() {
+          OnConstruction();
+        }
 
-        public MapSint64Sint64Entry(MapSint64Sint64Entry other) {
+        partial void OnConstruction();
+
+        public MapSint64Sint64Entry(MapSint64Sint64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5099,9 +5223,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapFixed32Fixed32Entry() { }
+        public MapFixed32Fixed32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapFixed32Fixed32Entry(MapFixed32Fixed32Entry other) {
+        public MapFixed32Fixed32Entry(MapFixed32Fixed32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5237,9 +5365,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapFixed64Fixed64Entry() { }
+        public MapFixed64Fixed64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapFixed64Fixed64Entry(MapFixed64Fixed64Entry other) {
+        public MapFixed64Fixed64Entry(MapFixed64Fixed64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5375,9 +5507,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSfixed32Sfixed32Entry() { }
+        public MapSfixed32Sfixed32Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSfixed32Sfixed32Entry(MapSfixed32Sfixed32Entry other) {
+        public MapSfixed32Sfixed32Entry(MapSfixed32Sfixed32Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5513,9 +5649,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapSfixed64Sfixed64Entry() { }
+        public MapSfixed64Sfixed64Entry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapSfixed64Sfixed64Entry(MapSfixed64Sfixed64Entry other) {
+        public MapSfixed64Sfixed64Entry(MapSfixed64Sfixed64Entry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5651,9 +5791,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32FloatEntry() { }
+        public MapInt32FloatEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32FloatEntry(MapInt32FloatEntry other) {
+        public MapInt32FloatEntry(MapInt32FloatEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5789,9 +5933,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32DoubleEntry() { }
+        public MapInt32DoubleEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32DoubleEntry(MapInt32DoubleEntry other) {
+        public MapInt32DoubleEntry(MapInt32DoubleEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -5927,9 +6075,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapBoolBoolEntry() { }
+        public MapBoolBoolEntry() {
+          OnConstruction();
+        }
 
-        public MapBoolBoolEntry(MapBoolBoolEntry other) {
+        partial void OnConstruction();
+
+        public MapBoolBoolEntry(MapBoolBoolEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -6065,9 +6217,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32EnumEntry() { }
+        public MapInt32EnumEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32EnumEntry(MapInt32EnumEntry other) {
+        public MapInt32EnumEntry(MapInt32EnumEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
@@ -6203,9 +6359,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public MapInt32ForeignMessageEntry() { }
+        public MapInt32ForeignMessageEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public MapInt32ForeignMessageEntry(MapInt32ForeignMessageEntry other) {
+        public MapInt32ForeignMessageEntry(MapInt32ForeignMessageEntry other) : this() {
           key_ = other.key_;
           Value = other.value_ != null ? other.Value.Clone() : null;
         }
@@ -6353,9 +6513,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public MessageContainingEnumCalledType() { }
+    public MessageContainingEnumCalledType() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public MessageContainingEnumCalledType(MessageContainingEnumCalledType other) {
+    public MessageContainingEnumCalledType(MessageContainingEnumCalledType other) : this() {
       type_ = other.type_.Clone();
     }
 
@@ -6461,9 +6625,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public TypeEntry() { }
+        public TypeEntry() {
+          OnConstruction();
+        }
 
-        public TypeEntry(TypeEntry other) {
+        partial void OnConstruction();
+
+        public TypeEntry(TypeEntry other) : this() {
           key_ = other.key_;
           Value = other.value_ != null ? other.Value.Clone() : null;
         }
@@ -6611,9 +6779,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public MessageContainingMapCalledEntry() { }
+    public MessageContainingMapCalledEntry() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public MessageContainingMapCalledEntry(MessageContainingMapCalledEntry other) {
+    public MessageContainingMapCalledEntry(MessageContainingMapCalledEntry other) : this() {
       entry_ = other.entry_.Clone();
     }
 
@@ -6715,9 +6887,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public EntryEntry() { }
+        public EntryEntry() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public EntryEntry(EntryEntry other) {
+        public EntryEntry(EntryEntry other) : this() {
           key_ = other.key_;
           value_ = other.value_;
         }
diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
index 5afcb4e0..d30f22db 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportProto3.cs
@@ -72,9 +72,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public ImportMessage() { }
+    public ImportMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public ImportMessage(ImportMessage other) {
+    public ImportMessage(ImportMessage other) : this() {
       d_ = other.d_;
     }
 
diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportPublicProto3.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportPublicProto3.cs
index 79c0876e..5aa03a64 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportPublicProto3.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestImportPublicProto3.cs
@@ -57,9 +57,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public PublicImportMessage() { }
+    public PublicImportMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public PublicImportMessage(PublicImportMessage other) {
+    public PublicImportMessage(PublicImportMessage other) : this() {
       e_ = other.e_;
     }
 
diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestIssues.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestIssues.cs
index 124f2de7..0e409c8b 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestIssues.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestIssues.cs
@@ -109,9 +109,13 @@ namespace UnitTest.Issues.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public Issue307() { }
+    public Issue307() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public Issue307(Issue307 other) {
+    public Issue307(Issue307 other) : this() {
     }
 
     public Issue307 Clone() {
@@ -194,9 +198,13 @@ namespace UnitTest.Issues.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public NestedOnce() { }
+        public NestedOnce() {
+          OnConstruction();
+        }
+
+        partial void OnConstruction();
 
-        public NestedOnce(NestedOnce other) {
+        public NestedOnce(NestedOnce other) : this() {
         }
 
         public NestedOnce Clone() {
@@ -279,9 +287,13 @@ namespace UnitTest.Issues.TestProtos {
             private bool _frozen = false;
             public bool IsFrozen { get { return _frozen; } }
 
-            public NestedTwice() { }
+            public NestedTwice() {
+              OnConstruction();
+            }
+
+            partial void OnConstruction();
 
-            public NestedTwice(NestedTwice other) {
+            public NestedTwice(NestedTwice other) : this() {
             }
 
             public NestedTwice Clone() {
@@ -373,9 +385,13 @@ namespace UnitTest.Issues.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public NegativeEnumMessage() { }
+    public NegativeEnumMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public NegativeEnumMessage(NegativeEnumMessage other) {
+    public NegativeEnumMessage(NegativeEnumMessage other) : this() {
       value_ = other.value_;
       values_ = other.values_.Clone();
       packedValues_ = other.packedValues_.Clone();
@@ -522,9 +538,13 @@ namespace UnitTest.Issues.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public DeprecatedChild() { }
+    public DeprecatedChild() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public DeprecatedChild(DeprecatedChild other) {
+    public DeprecatedChild(DeprecatedChild other) : this() {
     }
 
     public DeprecatedChild Clone() {
@@ -606,9 +626,13 @@ namespace UnitTest.Issues.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public DeprecatedFieldsMessage() { }
+    public DeprecatedFieldsMessage() {
+      OnConstruction();
+    }
 
-    public DeprecatedFieldsMessage(DeprecatedFieldsMessage other) {
+    partial void OnConstruction();
+
+    public DeprecatedFieldsMessage(DeprecatedFieldsMessage other) : this() {
       primitiveValue_ = other.primitiveValue_;
       primitiveArray_ = other.primitiveArray_.Clone();
       MessageValue = other.messageValue_ != null ? other.MessageValue.Clone() : null;
@@ -842,9 +866,13 @@ namespace UnitTest.Issues.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public ItemField() { }
+    public ItemField() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public ItemField(ItemField other) {
+    public ItemField(ItemField other) : this() {
       item_ = other.item_;
     }
 
diff --git a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestProto3.cs b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestProto3.cs
index c9aed740..d2437bf4 100644
--- a/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestProto3.cs
+++ b/csharp/src/ProtocolBuffers.Test/TestProtos/UnittestProto3.cs
@@ -346,9 +346,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestAllTypes() { }
+    public TestAllTypes() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestAllTypes(TestAllTypes other) {
+    public TestAllTypes(TestAllTypes other) : this() {
       singleInt32_ = other.singleInt32_;
       singleInt64_ = other.singleInt64_;
       singleUint32_ = other.singleUint32_;
@@ -1639,9 +1643,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public NestedMessage() { }
+        public NestedMessage() {
+          OnConstruction();
+        }
 
-        public NestedMessage(NestedMessage other) {
+        partial void OnConstruction();
+
+        public NestedMessage(NestedMessage other) : this() {
           bb_ = other.bb_;
         }
 
@@ -1755,9 +1763,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public NestedTestAllTypes() { }
+    public NestedTestAllTypes() {
+      OnConstruction();
+    }
 
-    public NestedTestAllTypes(NestedTestAllTypes other) {
+    partial void OnConstruction();
+
+    public NestedTestAllTypes(NestedTestAllTypes other) : this() {
       Child = other.child_ != null ? other.Child.Clone() : null;
       Payload = other.payload_ != null ? other.Payload.Clone() : null;
       repeatedChild_ = other.repeatedChild_.Clone();
@@ -1926,9 +1938,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestDeprecatedFields() { }
+    public TestDeprecatedFields() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestDeprecatedFields(TestDeprecatedFields other) {
+    public TestDeprecatedFields(TestDeprecatedFields other) : this() {
       deprecatedInt32_ = other.deprecatedInt32_;
     }
 
@@ -2038,9 +2054,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public ForeignMessage() { }
+    public ForeignMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public ForeignMessage(ForeignMessage other) {
+    public ForeignMessage(ForeignMessage other) : this() {
       c_ = other.c_;
     }
 
@@ -2149,9 +2169,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestReservedFields() { }
+    public TestReservedFields() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestReservedFields(TestReservedFields other) {
+    public TestReservedFields(TestReservedFields other) : this() {
     }
 
     public TestReservedFields Clone() {
@@ -2233,9 +2257,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestForeignNested() { }
+    public TestForeignNested() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestForeignNested(TestForeignNested other) {
+    public TestForeignNested(TestForeignNested other) : this() {
       ForeignNested = other.foreignNested_ != null ? other.ForeignNested.Clone() : null;
     }
 
@@ -2351,9 +2379,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestReallyLargeTagNumber() { }
+    public TestReallyLargeTagNumber() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestReallyLargeTagNumber(TestReallyLargeTagNumber other) {
+    public TestReallyLargeTagNumber(TestReallyLargeTagNumber other) : this() {
       a_ = other.a_;
       bb_ = other.bb_;
     }
@@ -2489,9 +2521,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestRecursiveMessage() { }
+    public TestRecursiveMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestRecursiveMessage(TestRecursiveMessage other) {
+    public TestRecursiveMessage(TestRecursiveMessage other) : this() {
       A = other.a_ != null ? other.A.Clone() : null;
       i_ = other.i_;
     }
@@ -2634,9 +2670,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestMutualRecursionA() { }
+    public TestMutualRecursionA() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestMutualRecursionA(TestMutualRecursionA other) {
+    public TestMutualRecursionA(TestMutualRecursionA other) : this() {
       Bb = other.bb_ != null ? other.Bb.Clone() : null;
     }
 
@@ -2752,9 +2792,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestMutualRecursionB() { }
+    public TestMutualRecursionB() {
+      OnConstruction();
+    }
 
-    public TestMutualRecursionB(TestMutualRecursionB other) {
+    partial void OnConstruction();
+
+    public TestMutualRecursionB(TestMutualRecursionB other) : this() {
       A = other.a_ != null ? other.A.Clone() : null;
       optionalInt32_ = other.optionalInt32_;
     }
@@ -2897,9 +2941,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestCamelCaseFieldNames() { }
+    public TestCamelCaseFieldNames() {
+      OnConstruction();
+    }
 
-    public TestCamelCaseFieldNames(TestCamelCaseFieldNames other) {
+    partial void OnConstruction();
+
+    public TestCamelCaseFieldNames(TestCamelCaseFieldNames other) : this() {
       primitiveField_ = other.primitiveField_;
       stringField_ = other.stringField_;
       enumField_ = other.enumField_;
@@ -3173,9 +3221,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestFieldOrderings() { }
+    public TestFieldOrderings() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestFieldOrderings(TestFieldOrderings other) {
+    public TestFieldOrderings(TestFieldOrderings other) : this() {
       myString_ = other.myString_;
       myInt_ = other.myInt_;
       myFloat_ = other.myFloat_;
@@ -3373,9 +3425,13 @@ namespace Google.Protobuf.TestProtos {
         private bool _frozen = false;
         public bool IsFrozen { get { return _frozen; } }
 
-        public NestedMessage() { }
+        public NestedMessage() {
+          OnConstruction();
+        }
 
-        public NestedMessage(NestedMessage other) {
+        partial void OnConstruction();
+
+        public NestedMessage(NestedMessage other) : this() {
           oo_ = other.oo_;
           bb_ = other.bb_;
         }
@@ -3516,9 +3572,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public SparseEnumMessage() { }
+    public SparseEnumMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public SparseEnumMessage(SparseEnumMessage other) {
+    public SparseEnumMessage(SparseEnumMessage other) : this() {
       sparseEnum_ = other.sparseEnum_;
     }
 
@@ -3627,9 +3687,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public OneString() { }
+    public OneString() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public OneString(OneString other) {
+    public OneString(OneString other) : this() {
       data_ = other.data_;
     }
 
@@ -3738,9 +3802,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public MoreString() { }
+    public MoreString() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public MoreString(MoreString other) {
+    public MoreString(MoreString other) : this() {
       data_ = other.data_.Clone();
     }
 
@@ -3841,9 +3909,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public OneBytes() { }
+    public OneBytes() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public OneBytes(OneBytes other) {
+    public OneBytes(OneBytes other) : this() {
       data_ = other.data_;
     }
 
@@ -3952,9 +4024,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public MoreBytes() { }
+    public MoreBytes() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public MoreBytes(MoreBytes other) {
+    public MoreBytes(MoreBytes other) : this() {
       data_ = other.data_;
     }
 
@@ -4063,9 +4139,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public Int32Message() { }
+    public Int32Message() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public Int32Message(Int32Message other) {
+    public Int32Message(Int32Message other) : this() {
       data_ = other.data_;
     }
 
@@ -4174,9 +4254,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public Uint32Message() { }
+    public Uint32Message() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public Uint32Message(Uint32Message other) {
+    public Uint32Message(Uint32Message other) : this() {
       data_ = other.data_;
     }
 
@@ -4285,9 +4369,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public Int64Message() { }
+    public Int64Message() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public Int64Message(Int64Message other) {
+    public Int64Message(Int64Message other) : this() {
       data_ = other.data_;
     }
 
@@ -4396,9 +4484,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public Uint64Message() { }
+    public Uint64Message() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public Uint64Message(Uint64Message other) {
+    public Uint64Message(Uint64Message other) : this() {
       data_ = other.data_;
     }
 
@@ -4507,9 +4599,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public BoolMessage() { }
+    public BoolMessage() {
+      OnConstruction();
+    }
 
-    public BoolMessage(BoolMessage other) {
+    partial void OnConstruction();
+
+    public BoolMessage(BoolMessage other) : this() {
       data_ = other.data_;
     }
 
@@ -4618,9 +4714,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestOneof() { }
+    public TestOneof() {
+      OnConstruction();
+    }
 
-    public TestOneof(TestOneof other) {
+    partial void OnConstruction();
+
+    public TestOneof(TestOneof other) : this() {
       switch (other.FooCase) {
         case FooOneofCase.FooInt:
           FooInt = other.FooInt;
@@ -4819,9 +4919,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestPackedTypes() { }
+    public TestPackedTypes() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestPackedTypes(TestPackedTypes other) {
+    public TestPackedTypes(TestPackedTypes other) : this() {
       packedInt32_ = other.packedInt32_.Clone();
       packedInt64_ = other.packedInt64_.Clone();
       packedUint32_ = other.packedUint32_.Clone();
@@ -5182,9 +5286,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestUnpackedTypes() { }
+    public TestUnpackedTypes() {
+      OnConstruction();
+    }
 
-    public TestUnpackedTypes(TestUnpackedTypes other) {
+    partial void OnConstruction();
+
+    public TestUnpackedTypes(TestUnpackedTypes other) : this() {
       unpackedInt32_ = other.unpackedInt32_.Clone();
       unpackedInt64_ = other.unpackedInt64_.Clone();
       unpackedUint32_ = other.unpackedUint32_.Clone();
@@ -5545,9 +5653,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestRepeatedScalarDifferentTagSizes() { }
+    public TestRepeatedScalarDifferentTagSizes() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestRepeatedScalarDifferentTagSizes(TestRepeatedScalarDifferentTagSizes other) {
+    public TestRepeatedScalarDifferentTagSizes(TestRepeatedScalarDifferentTagSizes other) : this() {
       repeatedFixed32_ = other.repeatedFixed32_.Clone();
       repeatedInt32_ = other.repeatedInt32_.Clone();
       repeatedFixed64_ = other.repeatedFixed64_.Clone();
@@ -5749,9 +5861,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public TestCommentInjectionMessage() { }
+    public TestCommentInjectionMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public TestCommentInjectionMessage(TestCommentInjectionMessage other) {
+    public TestCommentInjectionMessage(TestCommentInjectionMessage other) : this() {
       a_ = other.a_;
     }
 
@@ -5860,9 +5976,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public FooRequest() { }
+    public FooRequest() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public FooRequest(FooRequest other) {
+    public FooRequest(FooRequest other) : this() {
     }
 
     public FooRequest Clone() {
@@ -5944,9 +6064,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public FooResponse() { }
+    public FooResponse() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public FooResponse(FooResponse other) {
+    public FooResponse(FooResponse other) : this() {
     }
 
     public FooResponse Clone() {
@@ -6028,9 +6152,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public FooClientMessage() { }
+    public FooClientMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public FooClientMessage(FooClientMessage other) {
+    public FooClientMessage(FooClientMessage other) : this() {
     }
 
     public FooClientMessage Clone() {
@@ -6112,9 +6240,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public FooServerMessage() { }
+    public FooServerMessage() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public FooServerMessage(FooServerMessage other) {
+    public FooServerMessage(FooServerMessage other) : this() {
     }
 
     public FooServerMessage Clone() {
@@ -6196,9 +6328,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public BarRequest() { }
+    public BarRequest() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public BarRequest(BarRequest other) {
+    public BarRequest(BarRequest other) : this() {
     }
 
     public BarRequest Clone() {
@@ -6280,9 +6416,13 @@ namespace Google.Protobuf.TestProtos {
     private bool _frozen = false;
     public bool IsFrozen { get { return _frozen; } }
 
-    public BarResponse() { }
+    public BarResponse() {
+      OnConstruction();
+    }
+
+    partial void OnConstruction();
 
-    public BarResponse(BarResponse other) {
+    public BarResponse(BarResponse other) : this() {
     }
 
     public BarResponse Clone() {