Ensure all built-in numeric types are written out as number literals

Author: mythz

src/ServiceStack.Text/Common/ITypeSerializer.cs

@@ -33,6 +33,7 @@ public interface ITypeSerializer
         void WriteBytes(TextWriter writer, object oByteValue);
         void WriteChar(TextWriter writer, object charValue);
         void WriteByte(TextWriter writer, object byteValue);
+        void WriteSByte(TextWriter writer, object sbyteValue);
         void WriteInt16(TextWriter writer, object intValue);
         void WriteUInt16(TextWriter writer, object intValue);
         void WriteInt32(TextWriter writer, object intValue);

src/ServiceStack.Text/Common/JsWriter.cs

@@ -193,6 +193,8 @@ public WriteObjectDelegate GetValueTypeToStringMethod(Type type)
 
                 if (typeCode == TypeCode.Byte)
                     return Serializer.WriteByte;
+                if (typeCode == TypeCode.SByte)
+                    return Serializer.WriteSByte;
 
                 if (typeCode == TypeCode.Int16)
                     return Serializer.WriteInt16;

src/ServiceStack.Text/Json/JsonTypeSerializer.cs

@@ -204,6 +204,14 @@ public void WriteByte(TextWriter writer, object byteValue)
                 writer.Write((byte)byteValue);
         }
 
+        public void WriteSByte(TextWriter writer, object sbyteValue)
+        {
+            if (sbyteValue == null)
+                writer.Write(JsonUtils.Null);
+            else
+                writer.Write((sbyte)sbyteValue);
+        }
+
         public void WriteInt16(TextWriter writer, object intValue)
         {
             if (intValue == null)

src/ServiceStack.Text/Jsv/JsvTypeSerializer.cs

@@ -176,6 +176,12 @@ public void WriteByte(TextWriter writer, object byteValue)
             writer.Write((byte)byteValue);
         }
 
+        public void WriteSByte(TextWriter writer, object sbyteValue)
+        {
+            if (sbyteValue == null) return;
+            writer.Write((sbyte)sbyteValue);
+        }
+
         public void WriteInt16(TextWriter writer, object intValue)
         {
             if (intValue == null) return;

tests/ServiceStack.Text.Tests/DynamicObjectTests.cs

@@ -318,5 +318,26 @@ public void Does_deserialize_int_objects()
 
             JsConfig.Reset();
         }
+
+        string SerializeObject(object value)
+        {
+            return new TypeWithObjects { Value = value }.ToJson();
+        }
+
+        [Test]
+        public void Does_serialize_number_object_types()
+        {
+            Assert.That(SerializeObject((byte)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((sbyte)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((short)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((ushort)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((int)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((uint)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((long)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((ulong)1), Is.EqualTo("{\"Value\":1}"));
+            Assert.That(SerializeObject((float)1.1), Is.EqualTo("{\"Value\":1.1}"));
+            Assert.That(SerializeObject((double)1.1), Is.EqualTo("{\"Value\":1.1}"));
+            Assert.That(SerializeObject((decimal)1.1), Is.EqualTo("{\"Value\":1.1}"));
+        }
     }
 }