Fixed parsing error for Newtonsoft.

Author: Oren (electricessence)

Open.Serialization.Json.Newtonsoft/Converters/JsonDecimalRoundingConverter.cs

@@ -14,7 +14,7 @@ public JsonDecimalRoundingConverter(int maximum)
 		}
 
 		public override decimal ReadJson(JsonReader reader, Type objectType, decimal existingValue, bool hasExistingValue, JsonSerializer serializer)
-			=> Math.Round(decimal.Parse((string)reader.Value), Maximum);
+			=> Math.Round(hasExistingValue ? existingValue : (decimal)reader.Value, Maximum);
 
 		public override void WriteJson(JsonWriter writer, decimal value, JsonSerializer serializer)
 			=> base.WriteJson(writer, Math.Round(value, Maximum), serializer);

Open.Serialization.Json.Newtonsoft/Converters/JsonDoubleRoundingConverter.cs

@@ -14,7 +14,7 @@ public JsonDoubleRoundingConverter(int maximum)
 		}
 
 		public override double ReadJson(JsonReader reader, Type objectType, double existingValue, bool hasExistingValue, JsonSerializer serializer)
-			=> Math.Round(hasExistingValue ? existingValue : double.Parse((string)reader.Value), Maximum);
+			=> Math.Round(hasExistingValue ? existingValue : (double)reader.Value, Maximum);
 
 		public override void WriteJson(JsonWriter writer, double value, JsonSerializer serializer)
 			=> writer.WriteValue(Math.Round(value, Maximum));

Open.Serialization.Json.Newtonsoft/Converters/JsonNullableDecimalConverter.cs

@@ -17,7 +17,7 @@ public static readonly JsonNullableDecimalConverter Instance
 			=> hasExistingValue ? existingValue : reader.TokenType switch
 			{
 				JsonToken.Null => default,
-				JsonToken.Float => decimal.Parse((string)reader.Value),
+				JsonToken.Float => (decimal)reader.Value,
 				_ => throw new JsonException("Unexpected token type."),
 			};
 

Open.Serialization.Json.Newtonsoft/Converters/JsonNullableDoubleConverter.cs

@@ -18,7 +18,7 @@ public static readonly JsonNullableDoubleConverter Instance
 			=> hasExistingValue ? existingValue : reader.TokenType switch
 			{
 				JsonToken.Null => default,
-				JsonToken.Float => double.Parse((string)reader.Value),
+				JsonToken.Float => (double)reader.Value,
 				_ => throw new JsonException("Unexpected token type."),
 			};
 

Open.Serialization.Json.Newtonsoft/Open.Serialization.Json.Newtonsoft.csproj

@@ -17,7 +17,7 @@ Part of the "Open" set of libraries.
 		<RepositoryUrl>https://github.com/electricessence/Open.Serialization</RepositoryUrl>
 		<RepositoryType>git</RepositoryType>
 		<PackageTags>serialization json newtonsoft</PackageTags>
-		<Version>1.2.2</Version>
+		<Version>1.2.3</Version>
 	</PropertyGroup>
 
 	<ItemGroup>

Open.Serialization.Tests/Newtonsoft/JsonExtensionTests.cs

@@ -15,6 +15,11 @@ public static void ValidateJsonExtensions()
 				.NormalizeDecimals()
 				.RoundDoubles(2)
 				.RoundDecimals(2);
+
+			var serializer = basic.GetSerializer();
+			var json = serializer.Serialize(SampleModel.Instance);
+			var obj = serializer.Deserialize<SampleModel>(json);
+			Assert.NotNull(obj);
 		}
 	}
 }

Open.Serialization.Tests/System/JsonExtensionTests.cs

@@ -29,6 +29,11 @@ public static void ValidateJsonExtensions()
 				.NormalizeDecimals()
 				.RoundDoubles(2)
 				.RoundDecimals(2);
+
+			var serializer = basic.GetSerializer();
+			var json = serializer.Serialize(SampleModel.Instance);
+			var obj = serializer.Deserialize<SampleModel>(json);
+			Assert.NotNull(obj);
 		}
 	}
 }