Add DateTime to TypeCode switch

Author: mythz

src/ServiceStack.Text/Common/DeserializeBuiltin.cs

@@ -60,15 +60,15 @@ private static ParseStringDelegate GetParseFn()
                         return value => double.Parse(value, CultureInfo.InvariantCulture);
                     case TypeCode.Decimal:
                         return value => decimal.Parse(value, CultureInfo.InvariantCulture);
+                    case TypeCode.DateTime:
+                        return value => DateTimeSerializer.ParseShortestXsdDateTime(value);
                     case TypeCode.Char:
                         char cValue;
                         return value => char.TryParse(value, out cValue) ? cValue : '\0';
                 }
 
                 if (typeof(T) == typeof(Guid))
                     return value => new Guid(value);
-                if (typeof(T) == typeof(DateTime))
-                    return value => DateTimeSerializer.ParseShortestXsdDateTime(value);
                 if (typeof(T) == typeof(DateTimeOffset))
                     return value => DateTimeSerializer.ParseDateTimeOffset(value);
                 if (typeof(T) == typeof(TimeSpan))
@@ -107,13 +107,13 @@ private static ParseStringDelegate GetParseFn()
                         return value => string.IsNullOrEmpty(value) ? (double?)null : double.Parse(value, CultureInfo.InvariantCulture);
                     case TypeCode.Decimal:
                         return value => string.IsNullOrEmpty(value) ? (decimal?)null : decimal.Parse(value, CultureInfo.InvariantCulture);
+                    case TypeCode.DateTime:
+                        return value => DateTimeSerializer.ParseShortestNullableXsdDateTime(value);
                     case TypeCode.Char:
                         char cValue;
                         return value => string.IsNullOrEmpty(value) ? (char?)null : char.TryParse(value, out cValue) ? cValue : '\0';
                 }
 
-                if (typeof(T) == typeof(DateTime?))
-                    return value => DateTimeSerializer.ParseShortestNullableXsdDateTime(value);
                 if (typeof(T) == typeof(TimeSpan?))
                     return value => DateTimeSerializer.ParseNullableTimeSpan(value);
                 if (typeof(T) == typeof(Guid?))

tests/ServiceStack.Text.Tests/BclStructTests.cs

@@ -114,6 +114,7 @@ public void GetUnderlyingTypeCode_tests()
             Assert.That(typeof(float?).GetUnderlyingTypeCode(), Is.EqualTo(TypeCode.Single));
             Assert.That(typeof(double?).GetUnderlyingTypeCode(), Is.EqualTo(TypeCode.Double));
             Assert.That(typeof(decimal?).GetUnderlyingTypeCode(), Is.EqualTo(TypeCode.Decimal));
+            Assert.That(typeof(DateTime?).GetUnderlyingTypeCode(), Is.EqualTo(TypeCode.DateTime));
         }
     }
 }