1.2.0.

.gitignore

@@ -28,3 +28,4 @@ _ReSharper*/
 *.userprefs
 *.nupkg
 /.vs/*
+/packages/*

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2017 Valeriano Alfonso Rodriguez
+Copyright (c) 2016-2020 Valeriano Alfonso Rodriguez
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

VAR.Json.Tests/JsonParser_Tests.cs

@@ -0,0 +1,479 @@
+using System.Collections.Generic;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace VAR.Json.Tests
+{
+    [TestClass()]
+    public class JsonParser_Tests
+    {
+        #region Parse
+
+        public class SwallowObject
+        {
+            public string Text { get; set; }
+            public int Number { get; set; }
+        }
+
+        [TestMethod()]
+        public void Parse__SwallowObject()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            SwallowObject result = parser.Parse(@"{""Text"": ""AAAA"", ""Number"": 42}") as SwallowObject;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual("AAAA", result.Text);
+            Assert.AreEqual(42, result.Number);
+        }
+
+        public class DeeperObject_L1
+        {
+            public string Name { get; set; }
+            public SwallowObject Object { get; set; }
+        }
+
+        [TestMethod()]
+        public void Parse__DeeperObject_L1()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            parser.KnownTypes.Add(typeof(DeeperObject_L1));
+            DeeperObject_L1 result = parser.Parse(@"{""Name"": ""Thing"", ""Object"": {""Text"": ""AAAA"", ""Number"": 42}}") as DeeperObject_L1;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual("Thing", result.Name);
+            Assert.AreEqual("AAAA", result.Object.Text);
+            Assert.AreEqual(42, result.Object.Number);
+        }
+
+        public class DeeperObject_L2
+        {
+            public int Count { get; set; }
+            public DeeperObject_L1 Object { get; set; }
+        }
+
+        [TestMethod()]
+        public void Parse__DeeperObject_L2()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            parser.KnownTypes.Add(typeof(DeeperObject_L1));
+            parser.KnownTypes.Add(typeof(DeeperObject_L2));
+            DeeperObject_L2 result = parser.Parse(@"{""Count"": 1, ""Object"": {""Name"": ""Thing"", ""Object"": {""Text"": ""AAAA"", ""Number"": 42}}}") as DeeperObject_L2;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual(1, result.Count);
+            Assert.AreEqual("Thing", result.Object.Name);
+            Assert.AreEqual("AAAA", result.Object.Object.Text);
+            Assert.AreEqual(42, result.Object.Object.Number);
+        }
+
+        [TestMethod()]
+        public void Parse__SwallowObjectArray()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            List<SwallowObject> result = parser.Parse(@"[{""Text"": ""AAAA"", ""Number"": 42}]") as List<SwallowObject>;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual(1, result.Count);
+            Assert.AreEqual("AAAA", result[0].Text);
+            Assert.AreEqual(42, result[0].Number);
+        }
+
+        public class DeeperObjectArray_L1
+        {
+            public int Count { get; set; }
+            public List<SwallowObject> Array { get; set; }
+        }
+
+        [TestMethod()]
+        public void Parse__DeeperObjectArray_L1()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            parser.KnownTypes.Add(typeof(DeeperObjectArray_L1));
+            DeeperObjectArray_L1 result = parser.Parse(@"{""Count"": 1, ""Array"": [{""Text"": ""AAAA"", ""Number"": 42}]}") as DeeperObjectArray_L1;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual(1, result.Count);
+            Assert.AreEqual("AAAA", result.Array[0].Text);
+            Assert.AreEqual(42, result.Array[0].Number);
+        }
+
+        public class DeeperObjectArray_L2
+        {
+            public string Name { get; set; }
+            public List<DeeperObjectArray_L1> Objects { get; set; }
+        }
+
+        [TestMethod()]
+        public void Parse__DeeperObjectArray_L2()
+        {
+            JsonParser parser = new JsonParser();
+            parser.KnownTypes.Add(typeof(SwallowObject));
+            parser.KnownTypes.Add(typeof(DeeperObjectArray_L1));
+            parser.KnownTypes.Add(typeof(DeeperObjectArray_L2));
+            DeeperObjectArray_L2 result = parser.Parse(@"{""Name"": ""Thing"", ""Objects"": [{""Count"": 1, ""Array"": [{""Text"": ""AAAA"", ""Number"": 42}]}]}") as DeeperObjectArray_L2;
+            Assert.AreEqual(false, parser.Tainted);
+            Assert.AreEqual("Thing", result.Name);
+            Assert.AreEqual(1, result.Objects[0].Count);
+            Assert.AreEqual("AAAA", result.Objects[0].Array[0].Text);
+            Assert.AreEqual(42, result.Objects[0].Array[0].Number);
+        }
+
+        #endregion Parse
+
+        #region Validity tests
+
+        [TestMethod()]
+        public void Parse__Validity_Fail01()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"""A JSON payload should be an object or array, not a string.""");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail02()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Unclosed array""");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail03()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{unquoted_key: ""keys must be quoted""}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail04()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""extra comma"",]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail05()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""double extra comma"",,]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail06()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[   , ""<-- missing value""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail07()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Comma after the close""],");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail08()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Extra close""]]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail09()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Extra comma"": true,}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail10()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Extra value after close"": true} ""misplaced quoted value""");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail11()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Illegal expression"": 1 + 2}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail12()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Illegal invocation"": alert()}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail13()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Numbers cannot have leading zeroes"": 013}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail14()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Numbers cannot be hex"": 0x14}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail15()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Illegal backslash escape: \x15""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail16()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[\naked]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail17()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Illegal backslash escape: \017""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail18()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[[[[[[[[[[[[[[[[[[[[""Too deep""]]]]]]]]]]]]]]]]]]]]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail19()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Missing colon"" null}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail20()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Double colon"":: null}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail21()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Comma instead of colon"", null}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail22()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Colon instead of comma"": false]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail23()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""Bad value"", truth]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail24()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"['single quote']");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail25()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""	tab	character	in	string	""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail26()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""tab\   character\   in\  string\  ""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail27()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""line
+break""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail28()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""line\
+break""]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail29()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[0e]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail30()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[0e+]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail31()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[0e+-1]");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail32()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{""Comma instead if closing brace"": true,");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Fail33()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[""mismatch""}");
+            Assert.AreEqual(true, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Pass01()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[
+    ""JSON Test Pattern pass1"",
+    {""object with 1 member"":[""array with 1 element""]},
+    {},
+    [],
+    -42,
+    true,
+    false,
+    null,
+    {
+        ""integer"": 1234567890,
+        ""real"": -9876.543210,
+        ""e"": 0.123456789e-12,
+        ""E"": 1.234567890E+34,
+        """":  23456789012E66,
+        ""zero"": 0,
+        ""one"": 1,
+        ""space"": "" "",
+        ""quote"": ""\"""",
+        ""backslash"": ""\\"",
+        ""controls"": ""\b\f\n\r\t"",
+        ""slash"": ""/ & \/"",
+        ""alpha"": ""abcdefghijklmnopqrstuvwyz"",
+        ""ALPHA"": ""ABCDEFGHIJKLMNOPQRSTUVWYZ"",
+        ""digit"": ""0123456789"",
+        ""0123456789"": ""digit"",
+        ""special"": ""`1~!@#$%^&*()_+-={':[,]}|;.</>?"",
+        ""hex"": ""\u0123\u4567\u89AB\uCDEF\uabcd\uef4A"",
+        ""true"": true,
+        ""false"": false,
+        ""null"": null,
+        ""array"":[  ],
+        ""object"":{  },
+        ""address"": ""50 St. James Street"",
+        ""url"": ""http://www.JSON.org/"",
+        ""comment"": ""// /* <!-- --"",
+        ""# -- --> */"": "" "",
+        "" s p a c e d "" :[1,2 , 3
+
+,
+
+4 , 5        ,          6           ,7        ],""compact"":[1,2,3,4,5,6,7],
+        ""jsontext"": ""{\""object with 1 member\"":[\""array with 1 element\""]}"",
+        ""quotes"": ""&#34; \u0022 %22 0x22 034 &#x22;"",
+        ""\/\\\""\uCAFE\uBABE\uAB98\uFCDE\ubcda\uef4A\b\f\n\r\t`1~!@#$%^&*()_+-=[]{}|;:',./<>?""
+: ""A key can be any string""
+    },
+    0.5 ,98.6
+,
+99.44
+,
+
+1066,
+1e1,
+0.1e1,
+1e-1,
+1e00,2e+00,2e-00
+,""rosebud""]");
+            Assert.AreEqual(false, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Pass02()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"[[[[[[[[[[[[[[[[[[[""Not too deep""]]]]]]]]]]]]]]]]]]]");
+            Assert.AreEqual(false, parser.Tainted);
+        }
+
+        [TestMethod()]
+        public void Parse__Validity_Pass03()
+        {
+            JsonParser parser = new JsonParser();
+            object result = parser.Parse(@"{
+    ""JSON Test Pattern pass3"": {
+        ""The outermost value"": ""must be an object or array."",
+        ""In this test"": ""It is an object.""
+    }
+}
+");
+            Assert.AreEqual(false, parser.Tainted);
+        }
+
+        #endregion Validity tests
+    }
+}

VAR.Json.Tests/Program.cs

@@ -1,129 +0,0 @@
-using System;
-using System.IO;
-using System.Text;
-
-namespace VAR.Json.Tests
-{
-    class Program
-    {
-        static void Main(string[] args)
-        {
-            // http://www.json.org/JSON_checker/
-
-            string currentPath = System.Reflection.Assembly.GetEntryAssembly().Location;
-            currentPath = FindPath(currentPath, "tests");
-            
-            // Test all files
-            string[] files;
-            files = Directory.GetFiles(currentPath, "*.json");
-            foreach (string file in files)
-            {
-                TestFile(file);
-            }
-
-            Console.Read();
-        }
-
-        private static void TestFile(string fileName)
-        {
-            string testName = Path.GetFileNameWithoutExtension(fileName);
-            string fileContent = File.ReadAllText(fileName, Encoding.UTF8);
-            if (testName.StartsWith("fail"))
-            {
-                TestFailCase(testName, fileContent);
-            }
-            if (testName.StartsWith("pass"))
-            {
-                TestPassCase(testName, fileContent);
-            }
-        }
-
-        private static void TestFailCase(string testName, string fileContent)
-        {
-            JsonParser parser = new JsonParser();
-            object result;
-            try
-            {
-                result = parser.Parse(fileContent);
-            }
-            catch (Exception ex)
-            {
-                OutputFailure(testName, fileContent, ex);
-                return;
-            }
-            if (parser.Tainted == false)
-            {
-                OutputFailure(testName, fileContent, result);
-                return;
-            }
-            Console.Out.WriteLine("OK! {0}", testName);
-        }
-
-        private static void TestPassCase(string testName, string fileContent)
-        {
-            JsonParser parser = new JsonParser();
-            object result;
-            try
-            {
-                result = parser.Parse(fileContent);
-            }
-            catch (Exception ex)
-            {
-                OutputFailure(testName, fileContent, ex);
-                return;
-            }
-            if (parser.Tainted)
-            {
-                OutputFailure(testName, fileContent, result);
-                return;
-            }
-            Console.Out.WriteLine("OK! {0}", testName);
-        }
-
-        private static void OutputFailure(string testName, string fileContent, object obj)
-        {
-            Console.Out.WriteLine("Failure! {0}", testName);
-            Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
-            Console.Out.WriteLine("Content:\n{0}", fileContent);
-            Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
-            if (obj is Exception)
-            {
-                Exception ex = obj as Exception;
-                Console.Out.WriteLine("Ex.Message: {0}", ex.Message);
-                Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
-                Console.Out.WriteLine("Ex.Stacktrace:\n{0}", ex.StackTrace);
-                Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
-            }
-            if (obj != null && (obj is Exception) == false)
-            {
-                JsonWriter writter = new JsonWriter(new JsonWriterConfiguration(indent: true));
-                Console.Out.WriteLine("Parsed:\n{0}", writter.Write(obj));
-                Console.Out.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
-            }
-        }
-
-        private static string FindPath(string currentPath, string directory)
-        {
-            do
-            {
-                string testPath = Path.Combine(currentPath, directory);
-                if (Directory.Exists(testPath))
-                {
-                    currentPath = testPath;
-                    Console.Out.WriteLine(testPath);
-                    break;
-                }
-                else
-                {
-                    DirectoryInfo dirInfo = Directory.GetParent(currentPath);
-                    if (dirInfo == null)
-                    {
-                        throw new Exception(string.Format("FindPath: Directory {0} not found", directory));
-                    }
-                    currentPath = dirInfo.ToString();
-                }
-            } while (string.IsNullOrEmpty(currentPath) == false);
-            return currentPath;
-        }
-    }
-}

VAR.Json.Tests/Properties/AssemblyInfo.cs

@@ -1,14 +1,36 @@
 using System.Reflection;
+using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
 [assembly: AssemblyTitle("VAR.Json.Tests")]
-[assembly: AssemblyDescription("Json Tests")]
+[assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("VAR")]
+[assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("VAR.Json.Tests")]
-[assembly: AssemblyCopyright("Copyright © VAR 2016")]
+[assembly: AssemblyCopyright("Copyright ©  2020")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
 [assembly: ComVisible(false)]
-[assembly: Guid("576297b8-423d-4533-b75a-f186ccff0d2a")]
+
-[assembly: AssemblyVersion("1.0.*")]
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("b92ac920-87d7-46de-afd8-d9c5eff7debe")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

VAR.Json.Tests/VAR.Json.Tests.csproj

@@ -1,20 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <Import Project="..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.props" Condition="Exists('..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{576297B8-423D-4533-B75A-F186CCFF0D2A}</ProjectGuid>
+    <ProjectGuid>{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}</ProjectGuid>
-    <OutputType>Exe</OutputType>
+    <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>VAR.Json.Tests</RootNamespace>
     <AssemblyName>VAR.Json.Tests</AssemblyName>
     <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+    <ReferencePath>$(ProgramFiles)\Common Files\microsoft shared\VSTT\$(VisualStudioVersion)\UITestExtensionPackages</ReferencePath>
+    <IsCodedUITest>False</IsCodedUITest>
+    <TestProjectType>UnitTest</TestProjectType>
+    <TargetFrameworkProfile />
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
@@ -24,7 +31,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>bin\Release\</OutputPath>
@@ -33,58 +39,63 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="Microsoft.VisualStudio.TestPlatform.TestFramework, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\MSTest.TestFramework.2.1.1\lib\net45\Microsoft.VisualStudio.TestPlatform.TestFramework.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\MSTest.TestFramework.2.1.1\lib\net45\Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
-    <Reference Include="System.Core" />
   </ItemGroup>
+  <Choose>
+    <When Condition="('$(VisualStudioVersion)' == '10.0' or '$(VisualStudioVersion)' == '') and '$(TargetFrameworkVersion)' == 'v3.5'">
       <ItemGroup>
-    <Compile Include="Program.cs" />
+        <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
+      </ItemGroup>
+    </When>
+    <Otherwise />
+  </Choose>
+  <ItemGroup>
+    <Compile Include="JsonParser_Tests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>
-    <None Include="tests\fail01.json" />
+    <None Include="packages.config" />
-    <None Include="tests\fail10.json" />
-    <None Include="tests\fail11.json" />
-    <None Include="tests\fail12.json" />
-    <None Include="tests\fail13.json" />
-    <None Include="tests\fail14.json" />
-    <None Include="tests\fail15.json" />
-    <None Include="tests\fail16.json" />
-    <None Include="tests\fail17.json" />
-    <None Include="tests\fail18.json" />
-    <None Include="tests\fail19.json" />
-    <None Include="tests\fail02.json" />
-    <None Include="tests\fail20.json" />
-    <None Include="tests\fail21.json" />
-    <None Include="tests\fail22.json" />
-    <None Include="tests\fail23.json" />
-    <None Include="tests\fail24.json" />
-    <None Include="tests\fail25.json" />
-    <None Include="tests\fail26.json" />
-    <None Include="tests\fail27.json" />
-    <None Include="tests\fail28.json" />
-    <None Include="tests\fail29.json" />
-    <None Include="tests\fail03.json" />
-    <None Include="tests\fail30.json" />
-    <None Include="tests\fail31.json" />
-    <None Include="tests\fail32.json" />
-    <None Include="tests\fail33.json" />
-    <None Include="tests\fail04.json" />
-    <None Include="tests\fail05.json" />
-    <None Include="tests\fail06.json" />
-    <None Include="tests\fail07.json" />
-    <None Include="tests\fail08.json" />
-    <None Include="tests\fail09.json" />
-    <None Include="tests\pass01.json" />
-    <None Include="tests\pass02.json" />
-    <None Include="tests\pass03.json" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\VAR.Json\VAR.Json.csproj">
-      <Project>{28b3f937-145c-4fd4-a75b-a25ea4cc0428}</Project>
+      <Project>{28B3F937-145C-4FD4-A75B-A25EA4CC0428}</Project>
       <Name>VAR.Json</Name>
     </ProjectReference>
   </ItemGroup>
+  <Choose>
+    <When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
+      <ItemGroup>
+        <Reference Include="Microsoft.VisualStudio.QualityTools.CodedUITestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+          <Private>False</Private>
+        </Reference>
+        <Reference Include="Microsoft.VisualStudio.TestTools.UITest.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+          <Private>False</Private>
+        </Reference>
+        <Reference Include="Microsoft.VisualStudio.TestTools.UITest.Extension, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+          <Private>False</Private>
+        </Reference>
+        <Reference Include="Microsoft.VisualStudio.TestTools.UITesting, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+          <Private>False</Private>
+        </Reference>
+      </ItemGroup>
+    </When>
+  </Choose>
+  <Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.props'))" />
+    <Error Condition="!Exists('..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.targets'))" />
+  </Target>
+  <Import Project="..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.targets" Condition="Exists('..\packages\MSTest.TestAdapter.2.1.1\build\net45\MSTest.TestAdapter.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">

VAR.Json.Tests/packages.config

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="MSTest.TestAdapter" version="2.1.1" targetFramework="net461" />
+  <package id="MSTest.TestFramework" version="2.1.1" targetFramework="net461" />
+</packages>

VAR.Json.Tests/tests/fail01.json

@@ -1 +0,0 @@
-"A JSON payload should be an object or array, not a string."

VAR.Json.Tests/tests/fail02.json

@@ -1 +0,0 @@
-["Unclosed array"

VAR.Json.Tests/tests/fail03.json

@@ -1 +0,0 @@
-{unquoted_key: "keys must be quoted"}

VAR.Json.Tests/tests/fail04.json

@@ -1 +0,0 @@
-["extra comma",]

VAR.Json.Tests/tests/fail05.json

@@ -1 +0,0 @@
-["double extra comma",,]

VAR.Json.Tests/tests/fail06.json

@@ -1 +0,0 @@
-[   , "<-- missing value"]

VAR.Json.Tests/tests/fail07.json

@@ -1 +0,0 @@
-["Comma after the close"],

VAR.Json.Tests/tests/fail08.json

@@ -1 +0,0 @@
-["Extra close"]]

VAR.Json.Tests/tests/fail09.json

@@ -1 +0,0 @@
-{"Extra comma": true,}

VAR.Json.Tests/tests/fail10.json

@@ -1 +0,0 @@
-{"Extra value after close": true} "misplaced quoted value"

VAR.Json.Tests/tests/fail11.json

@@ -1 +0,0 @@
-{"Illegal expression": 1 + 2}

VAR.Json.Tests/tests/fail12.json

@@ -1 +0,0 @@
-{"Illegal invocation": alert()}

VAR.Json.Tests/tests/fail13.json

@@ -1 +0,0 @@
-{"Numbers cannot have leading zeroes": 013}

VAR.Json.Tests/tests/fail14.json

@@ -1 +0,0 @@
-{"Numbers cannot be hex": 0x14}

VAR.Json.Tests/tests/fail15.json

@@ -1 +0,0 @@
-["Illegal backslash escape: \x15"]

VAR.Json.Tests/tests/fail16.json

@@ -1 +0,0 @@
-[\naked]

VAR.Json.Tests/tests/fail17.json

@@ -1 +0,0 @@
-["Illegal backslash escape: \017"]

VAR.Json.Tests/tests/fail18.json

@@ -1 +0,0 @@
-[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]

VAR.Json.Tests/tests/fail19.json

@@ -1 +0,0 @@
-{"Missing colon" null}

VAR.Json.Tests/tests/fail20.json

@@ -1 +0,0 @@
-{"Double colon":: null}

VAR.Json.Tests/tests/fail21.json

@@ -1 +0,0 @@
-{"Comma instead of colon", null}

VAR.Json.Tests/tests/fail22.json

@@ -1 +0,0 @@
-["Colon instead of comma": false]

VAR.Json.Tests/tests/fail23.json

@@ -1 +0,0 @@
-["Bad value", truth]

VAR.Json.Tests/tests/fail24.json

@@ -1 +0,0 @@
-['single quote']

VAR.Json.Tests/tests/fail25.json

@@ -1 +0,0 @@
-["	tab	character	in	string	"]

VAR.Json.Tests/tests/fail26.json

@@ -1 +0,0 @@
-["tab\   character\   in\  string\  "]

VAR.Json.Tests/tests/fail27.json

@@ -1,2 +0,0 @@
-["line
-break"]

VAR.Json.Tests/tests/fail28.json

@@ -1,2 +0,0 @@
-["line\
-break"]

VAR.Json.Tests/tests/fail29.json

@@ -1 +0,0 @@
-[0e]

VAR.Json.Tests/tests/fail30.json

@@ -1 +0,0 @@
-[0e+]

VAR.Json.Tests/tests/fail31.json

@@ -1 +0,0 @@
-[0e+-1]

VAR.Json.Tests/tests/fail32.json

@@ -1 +0,0 @@
-{"Comma instead if closing brace": true,

VAR.Json.Tests/tests/fail33.json

@@ -1 +0,0 @@
-["mismatch"}

VAR.Json.Tests/tests/pass01.json

@@ -1,58 +0,0 @@
-[
-    "JSON Test Pattern pass1",
-    {"object with 1 member":["array with 1 element"]},
-    {},
-    [],
-    -42,
-    true,
-    false,
-    null,
-    {
-        "integer": 1234567890,
-        "real": -9876.543210,
-        "e": 0.123456789e-12,
-        "E": 1.234567890E+34,
-        "":  23456789012E66,
-        "zero": 0,
-        "one": 1,
-        "space": " ",
-        "quote": "\"",
-        "backslash": "\\",
-        "controls": "\b\f\n\r\t",
-        "slash": "/ & \/",
-        "alpha": "abcdefghijklmnopqrstuvwyz",
-        "ALPHA": "ABCDEFGHIJKLMNOPQRSTUVWYZ",
-        "digit": "0123456789",
-        "0123456789": "digit",
-        "special": "`1~!@#$%^&*()_+-={':[,]}|;.</>?",
-        "hex": "\u0123\u4567\u89AB\uCDEF\uabcd\uef4A",
-        "true": true,
-        "false": false,
-        "null": null,
-        "array":[  ],
-        "object":{  },
-        "address": "50 St. James Street",
-        "url": "http://www.JSON.org/",
-        "comment": "// /* <!-- --",
-        "# -- --> */": " ",
-        " s p a c e d " :[1,2 , 3
-
-,
-
-4 , 5        ,          6           ,7        ],"compact":[1,2,3,4,5,6,7],
-        "jsontext": "{\"object with 1 member\":[\"array with 1 element\"]}",
-        "quotes": "&#34; \u0022 %22 0x22 034 &#x22;",
-        "\/\\\"\uCAFE\uBABE\uAB98\uFCDE\ubcda\uef4A\b\f\n\r\t`1~!@#$%^&*()_+-=[]{}|;:',./<>?"
-: "A key can be any string"
-    },
-    0.5 ,98.6
-,
-99.44
-,
-
-1066,
-1e1,
-0.1e1,
-1e-1,
-1e00,2e+00,2e-00
-,"rosebud"]

VAR.Json.Tests/tests/pass02.json

@@ -1 +0,0 @@
-[[[[[[[[[[[[[[[[[[["Not too deep"]]]]]]]]]]]]]]]]]]]

VAR.Json.Tests/tests/pass03.json

@@ -1,6 +0,0 @@
-{
-    "JSON Test Pattern pass3": {
-        "The outermost value": "must be an object or array.",
-        "In this test": "It is an object."
-    }
-}

VAR.Json.sln

@@ -1,18 +1,18 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 14
+# Visual Studio Version 16
-VisualStudioVersion = 14.0.25420.1
+VisualStudioVersion = 16.0.30330.147
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VAR.Json", "VAR.Json\VAR.Json.csproj", "{28B3F937-145C-4FD4-A75B-A25EA4CC0428}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VAR.Json.Tests", "VAR.Json.Tests\VAR.Json.Tests.csproj", "{576297B8-423D-4533-B75A-F186CCFF0D2A}"
-EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Notes", "Notes", "{4C23A421-5348-48F1-8B67-A4D43E616FDE}"
 	ProjectSection(SolutionItems) = preProject
 		LICENSE.txt = LICENSE.txt
 		README.md = README.md
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VAR.Json.Tests", "VAR.Json.Tests\VAR.Json.Tests.csproj", "{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -23,12 +23,15 @@ Global
 		{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Debug|Any CPU.Build.0 = Debug .Net 4.6.1|Any CPU
 		{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Release|Any CPU.ActiveCfg = Release .Net 4.6.1|Any CPU
 		{28B3F937-145C-4FD4-A75B-A25EA4CC0428}.Release|Any CPU.Build.0 = Release .Net 4.6.1|Any CPU
-		{576297B8-423D-4533-B75A-F186CCFF0D2A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{576297B8-423D-4533-B75A-F186CCFF0D2A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{576297B8-423D-4533-B75A-F186CCFF0D2A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{576297B8-423D-4533-B75A-F186CCFF0D2A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B92AC920-87D7-46DE-AFD8-D9C5EFF7DEBE}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B9700B54-1919-4B81-B123-D4D3DE74124A}
+	EndGlobalSection
 EndGlobal

VAR.Json/JsonParser.cs

@@ -91,9 +91,16 @@ namespace VAR.Json
                         valueDest = new Guid((string)valueOrig);
                     }
                     else
+                    {
+                        try
                         {
                             valueDest = Convert.ChangeType(obj[prop.Name], effectiveType);
                         }
+                        catch (Exception)
+                        {
+                            continue;
+                        }
+                    }
                     prop.SetValue(newObj, valueDest, null);
                 }
             }
@@ -115,7 +122,12 @@ namespace VAR.Json
             }
             if (bestMatch != null)
             {
-                return ConvertToType(obj, bestMatch);
+                try
+                {
+                    object newObj = ConvertToType(obj, bestMatch);
+                    return newObj;
+                }
+                catch (Exception) { } /* Nom Nom */
             }
             return obj;
         }
@@ -416,7 +428,7 @@ namespace VAR.Json
             }
         }
 
-        private List<object> ParseArray(int recursiveCount = 1)
+        private object ParseArray(int recursiveCount = 1)
         {
             // StrictRules: Mark as tainted when MaxRecursiveCount is exceeded
             if (recursiveCount >= MaxRecursiveCount) { _tainted = true; }
@@ -424,6 +436,9 @@ namespace VAR.Json
             bool correct = false;
             char c = _ctx.SkipWhite();
             List<object> array = new List<object>();
+            Type arrayContentType = null;
+            bool hasSameType = true;
+            bool hasNulls = false;
             if (c == '[')
             {
                 _ctx.Next();
@@ -452,19 +467,44 @@ namespace VAR.Json
                 {
                     // StrictRules: Mark as tainted when unexpected value on array
                     if (expectValue == false) { _tainted = true; }
-
+                    object value = ParseValue(recursiveCount + 1);
-                    array.Add(ParseValue(recursiveCount + 1));
+                    array.Add(value);
                     expectValue = false;
+
+                    if (hasSameType)
+                    {
+                        Type valueType = value?.GetType();
+                        if (valueType == null) { hasNulls = true; }
+                        if (arrayContentType == null || arrayContentType == valueType)
+                        {
+                            arrayContentType = valueType;
+                        }
+                        else
+                        {
+                            hasSameType = false;
+                        }
+                    }
                 }
             } while (!_ctx.AtEnd());
             if (correct == false)
             {
                 _tainted = true;
             }
-            return array;
+            object result = array;
+            bool isNullableType = arrayContentType?.IsClass == true;
+            if (hasSameType && arrayContentType != null && (isNullableType == true || (isNullableType == false && hasNulls == false)))
+            {
+                var enumerableType = typeof(System.Linq.Enumerable);
+                var castMethod = enumerableType.GetMethod("Cast").MakeGenericMethod(arrayContentType);
+                var toListMethod = enumerableType.GetMethod("ToList").MakeGenericMethod(arrayContentType);
+                IEnumerable<object> itemsToCast = array;
+                var castedItems = castMethod.Invoke(null, new[] { itemsToCast });
+                result = toListMethod.Invoke(null, new[] { castedItems });
+            }
+            return result;
         }
 
-        private Dictionary<string, object> ParseObject(int recursiveCount = 1)
+        private object ParseObject(int recursiveCount = 1)
         {
             // StrictRules: Mark as tainted when MaxRecursiveCount is exceeded
             if (recursiveCount >= MaxRecursiveCount) { _tainted = true; }
@@ -533,7 +573,8 @@ namespace VAR.Json
             {
                 _tainted = true;
             }
-            return obj;
+            object result = TryConvertToTypes(obj);
+            return result;
         }
 
         private object ParseValue(int recusiveCount = 1)
@@ -553,8 +594,7 @@ namespace VAR.Json
                     break;
 
                 case '{':
-                    Dictionary<string, object> obj = ParseObject(recusiveCount);
+                    token = ParseObject(recusiveCount);
-                    token = TryConvertToTypes(obj);
                     break;
 
                 case '[':
@@ -628,12 +668,14 @@ namespace VAR.Json
 
         private static JsonParser _currentInstance = null;
 
-        public static object ParseText(string text)
+        public static object ParseText(string text, params Type[] knownTypes)
         {
-            if(_currentInstance == null)
+            if (_currentInstance == null)
             {
                 _currentInstance = new JsonParser();
             }
+            _currentInstance.KnownTypes.Clear();
+            _currentInstance.KnownTypes.AddRange(knownTypes);
             return _currentInstance.Parse(text);
         }
 

VAR.Json/JsonWriter.cs

@@ -1,8 +1,8 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.IO;
 using System.Reflection;
-using System.Text;
 
 namespace VAR.Json
 {
@@ -22,12 +22,12 @@ namespace VAR.Json
 
         public JsonWriterConfiguration(
             bool indent = false,
-            bool useTablForIndent = false,
+            bool useTabForIndent = false,
             int indentChars = 4,
             int indentThresold = 3)
         {
             _indent = indent;
-            _useTabForIndent = useTablForIndent;
+            _useTabForIndent = useTabForIndent;
             _indentChars = indentChars;
             _indentThresold = indentThresold;
         }
@@ -44,7 +44,7 @@ namespace VAR.Json
 
         public override bool Equals(object other)
         {
-            if(other is JsonWriterConfiguration)
+            if (other is JsonWriterConfiguration)
             {
                 return Equals(other as JsonWriterConfiguration);
             }
@@ -101,52 +101,52 @@ namespace VAR.Json
             return false;
         }
 
-        private void WriteIndent(StringBuilder sbOutput, int level)
+        private void WriteIndent(TextWriter textWriter, int level)
         {
             if (!_config.Indent)
             {
                 return;
             }
-            sbOutput.Append('\n');
+            textWriter.Write('\n');
             if (_config.UseTabForIndent)
             {
-                for (int i = 0; i < level; i++) { sbOutput.Append('\t'); }
+                for (int i = 0; i < level; i++) { textWriter.Write('\t'); }
             }
             else
             {
                 int n = level * _config.IndentChars;
-                for (int i = 0; i < n; i++) { sbOutput.Append(' '); }
+                for (int i = 0; i < n; i++) { textWriter.Write(' '); }
             }
         }
 
-        private void WriteString(StringBuilder sbOutput, string str)
+        private void WriteString(TextWriter textWriter, string str)
         {
-            sbOutput.Append('"');
+            textWriter.Write('"');
             char c;
             int n = str.Length;
             for (int i = 0; i < n; i++)
             {
                 c = str[i];
-                if (c == '"') { sbOutput.Append("\\\""); }
+                if (c == '"') { textWriter.Write("\\\""); }
-                else if (c == '\\') { sbOutput.Append("\\\\"); }
+                else if (c == '\\') { textWriter.Write("\\\\"); }
-                else if (c == '/') { sbOutput.Append("\\/"); }
+                else if (c == '/') { textWriter.Write("\\/"); }
-                else if (c == '\b') { sbOutput.Append("\\b"); }
+                else if (c == '\b') { textWriter.Write("\\b"); }
-                else if (c == '\f') { sbOutput.Append("\\f"); }
+                else if (c == '\f') { textWriter.Write("\\f"); }
-                else if (c == '\n') { sbOutput.Append("\\n"); }
+                else if (c == '\n') { textWriter.Write("\\n"); }
-                else if (c == '\r') { sbOutput.Append("\\r"); }
+                else if (c == '\r') { textWriter.Write("\\r"); }
-                else if (c == '\t') { sbOutput.Append("\\t"); }
+                else if (c == '\t') { textWriter.Write("\\t"); }
-                else if (c < 32 || c >= 127) { sbOutput.AppendFormat("\\u{0:X04}", (int)c); }
+                else if (c < 32 || c >= 127) { textWriter.Write("\\u{0:X04}", (int)c); }
-                else { sbOutput.Append(c); }
+                else { textWriter.Write(c); }
             }
-            sbOutput.Append('"');
+            textWriter.Write('"');
         }
 
-        private void WriteValue(StringBuilder sbOutput, object obj, List<object> parentLevels, bool useReflection)
+        private void WriteValue(TextWriter textWriter, object obj, List<object> parentLevels)
         {
             if (obj == null || obj is DBNull)
             {
                 // NULL
-                sbOutput.Append("null");
+                textWriter.Write("null");
             }
             else if (
                 (obj is float) ||
@@ -157,50 +157,43 @@ namespace VAR.Json
                 false)
             {
                 // Numbers
-                sbOutput.Append(obj.ToString());
+                textWriter.Write(obj.ToString());
             }
             else if (obj is string)
             {
                 // Strings
-                WriteString(sbOutput, (string)obj);
+                WriteString(textWriter, (string)obj);
             }
             else if (obj is bool)
             {
                 // Booleans
-                sbOutput.Append(((bool)obj) ? "true" : "false");
+                textWriter.Write(((bool)obj) ? "true" : "false");
             }
             else if (obj is DateTime)
             {
                 // DateTime
-                sbOutput.Append('"');
+                textWriter.Write('"');
-                sbOutput.Append(((DateTime)obj).ToString("yyyy-MM-ddTHH:mm:ssZ"));
+                textWriter.Write(((DateTime)obj).ToString("yyyy-MM-ddTHH:mm:ss"));
-                sbOutput.Append('"');
+                textWriter.Write('"');
             }
             else if (obj is IDictionary)
             {
                 // Objects
-                WriteObject(sbOutput, obj, parentLevels);
+                WriteObject(textWriter, obj, parentLevels);
             }
             else if (obj is IEnumerable)
             {
                 // Array/List
-                WriteList(sbOutput, obj, parentLevels);
+                WriteList(textWriter, obj, parentLevels);
             }
             else
-            {
-                if (useReflection)
             {
                 // Reflected object
-                    WriteReflectedObject(sbOutput, obj, parentLevels);
+                WriteReflectedObject(textWriter, obj, parentLevels);
-                }
-                else
-                {
-                    WriteString(sbOutput, Convert.ToString(obj));
-                }
             }
         }
 
-        private void WriteList(StringBuilder sbOutput, object obj, List<object> parentLevels)
+        private void WriteList(TextWriter textWriter, object obj, List<object> parentLevels)
         {
             IEnumerable list = (IEnumerable)obj;
             int n = 0;
@@ -219,40 +212,40 @@ namespace VAR.Json
             // Empty
             if (n == 0)
             {
-                sbOutput.Append("[ ]");
+                textWriter.Write("[ ]");
                 return;
             }
 
             // Write array
             bool first = true;
-            sbOutput.Append("[ ");
+            textWriter.Write("[ ");
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count + 1);
+                WriteIndent(textWriter, parentLevels.Count + 1);
             }
             foreach (object childObj in list)
             {
                 if (!first)
                 {
-                    sbOutput.Append(", ");
+                    textWriter.Write(", ");
                     if (!isLeaf || n > _config.IndentThresold)
                     {
-                        WriteIndent(sbOutput, parentLevels.Count + 1);
+                        WriteIndent(textWriter, parentLevels.Count + 1);
                     }
                 }
                 first = false;
                 parentLevels.Add(obj);
-                WriteValue(sbOutput, childObj, parentLevels, true);
+                WriteValue(textWriter, childObj, parentLevels);
                 parentLevels.Remove(obj);
             }
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count);
+                WriteIndent(textWriter, parentLevels.Count);
             }
-            sbOutput.Append(" ]");
+            textWriter.Write(" ]");
         }
 
-        private void WriteObject(StringBuilder sbOutput, object obj, List<object> parentLevels)
+        private void WriteObject(TextWriter textWriter, object obj, List<object> parentLevels)
         {
             IDictionary map = (IDictionary)obj;
             int n = map.Count;
@@ -260,7 +253,7 @@ namespace VAR.Json
             // Empty
             if (map.Count == 0)
             {
-                sbOutput.Append("{ }");
+                textWriter.Write("{ }");
                 return;
             }
 
@@ -277,37 +270,37 @@ namespace VAR.Json
 
             // Write object
             bool first = true;
-            sbOutput.Append("{ ");
+            textWriter.Write("{ ");
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count + 1);
+                WriteIndent(textWriter, parentLevels.Count + 1);
             }
             foreach (object key in map.Keys)
             {
                 object value = map[key];
                 if (!first)
                 {
-                    sbOutput.Append(", ");
+                    textWriter.Write(", ");
                     if (!isLeaf || n > _config.IndentThresold)
                     {
-                        WriteIndent(sbOutput, parentLevels.Count + 1);
+                        WriteIndent(textWriter, parentLevels.Count + 1);
                     }
                 }
                 first = false;
-                WriteString(sbOutput, Convert.ToString(key));
+                WriteString(textWriter, Convert.ToString(key));
-                sbOutput.Append(": ");
+                textWriter.Write(": ");
                 parentLevels.Add(obj);
-                WriteValue(sbOutput, value, parentLevels, true);
+                WriteValue(textWriter, value, parentLevels);
                 parentLevels.Remove(obj);
             }
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count);
+                WriteIndent(textWriter, parentLevels.Count);
             }
-            sbOutput.Append(" }");
+            textWriter.Write(" }");
         }
 
-        private void WriteReflectedObject(StringBuilder sbOutput, object obj, List<object> parentLevels)
+        private void WriteReflectedObject(TextWriter textWriter, object obj, List<object> parentLevels)
         {
             Type type = obj.GetType();
             PropertyInfo[] rawProperties = type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
@@ -323,7 +316,7 @@ namespace VAR.Json
             // Empty
             if (n == 0)
             {
-                sbOutput.Append("{ }");
+                textWriter.Write("{ }");
                 return;
             }
 
@@ -341,10 +334,10 @@ namespace VAR.Json
 
             // Write object
             bool first = true;
-            sbOutput.Append("{ ");
+            textWriter.Write("{ ");
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count + 1);
+                WriteIndent(textWriter, parentLevels.Count + 1);
             }
             foreach (PropertyInfo property in properties)
             {
@@ -357,69 +350,106 @@ namespace VAR.Json
                 }
                 if (!first)
                 {
-                    sbOutput.Append(", ");
+                    textWriter.Write(", ");
                     if (!isLeaf || n > _config.IndentThresold)
                     {
-                        WriteIndent(sbOutput, parentLevels.Count + 1);
+                        WriteIndent(textWriter, parentLevels.Count + 1);
                     }
                 }
                 first = false;
-                WriteString(sbOutput, property.Name);
+                WriteString(textWriter, property.Name);
-                sbOutput.Append(": ");
+                textWriter.Write(": ");
                 parentLevels.Add(obj);
                 if (value != obj && parentLevels.Contains(value) == false)
                 {
-                    WriteValue(sbOutput, value, parentLevels, false);
+                    WriteValue(textWriter, value, parentLevels);
                 }
                 else
                 {
-                    WriteValue(sbOutput, null, parentLevels, false);
+                    WriteValue(textWriter, null, parentLevels);
                 }
                 parentLevels.Remove(obj);
             }
             if (!isLeaf || n > _config.IndentThresold)
             {
-                WriteIndent(sbOutput, parentLevels.Count);
+                WriteIndent(textWriter, parentLevels.Count);
             }
-            sbOutput.Append(" }");
+            textWriter.Write(" }");
         }
 
         #endregion Private methods
 
         #region Public methods
 
+        public TextWriter Write(object obj, TextWriter textWriter)
+        {
+            if (textWriter == null)
+            {
+                textWriter = new StringWriter();
+            }
+            WriteValue(textWriter, obj, new List<object>());
+            return textWriter;
+        }
+
         public string Write(object obj)
         {
-            StringBuilder sbOutput = new StringBuilder();
+            StringWriter textWriter = new StringWriter();
-            WriteValue(sbOutput, obj, new List<object>(), true);
+            WriteValue(textWriter, obj, new List<object>());
-            return sbOutput.ToString();
+            return textWriter.ToString();
         }
 
         private static Dictionary<JsonWriterConfiguration, JsonWriter> _dictInstances = new Dictionary<JsonWriterConfiguration, JsonWriter>();
 
-        public static string WriteObject(object obj, JsonWriterConfiguration config = null)
-        {
-            
-            if(_dictInstances.ContainsKey(config) == false)
-            {
-                JsonWriter newJsonWriter = new JsonWriter(config);
-                _dictInstances.Add(config, newJsonWriter);
-            }
-            JsonWriter jsonWriter = _dictInstances[config];
-            return jsonWriter.Write(obj);
-        }
-
         public static string WriteObject(object obj,
+            JsonWriterConfiguration config = null,
             bool indent = false,
-            bool useTablForIndent = false,
+            bool useTabForIndent = false,
             int indentChars = 4,
             int indentThresold = 3)
         {
-            return WriteObject(obj, new JsonWriterConfiguration(
+            JsonWriter jsonWriter = null;
+
+            if (config != null)
+            {
+                if (_dictInstances.ContainsKey(config) == false)
+                {
+                    jsonWriter = new JsonWriter(config);
+                    _dictInstances.Add(config, jsonWriter);
+                }
+                else
+                {
+                    jsonWriter = _dictInstances[config];
+                }
+                return jsonWriter.Write(obj);
+            }
+
+            foreach (KeyValuePair<JsonWriterConfiguration, JsonWriter> pair in _dictInstances)
+            {
+                if (
+                    pair.Key.Indent == indent &&
+                    pair.Key.UseTabForIndent == useTabForIndent &&
+                    pair.Key.IndentChars == indentChars &&
+                    pair.Key.IndentThresold == indentThresold &&
+                    true)
+                {
+                    jsonWriter = pair.Value;
+                    break;
+                }
+            }
+            if (jsonWriter != null)
+            {
+                return jsonWriter.Write(obj);
+            }
+
+            JsonWriterConfiguration jsonWriterConfiguration = new JsonWriterConfiguration(
                 indent: indent,
-                useTablForIndent: useTablForIndent, 
+                useTabForIndent: useTabForIndent,
                 indentChars: indentChars,
-                indentThresold: indentThresold));
+                indentThresold: indentThresold);
+            jsonWriter = new JsonWriter(jsonWriterConfiguration);
+            _dictInstances.Add(jsonWriterConfiguration, jsonWriter);
+
+            return jsonWriter.Write(obj);
         }
 
         #endregion Public methods

VAR.Json/Properties/AssemblyInfo.cs

@@ -11,4 +11,4 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCulture("")]
 [assembly: ComVisible(false)]
 [assembly: Guid("28b3f937-145c-4fd4-a75b-a25ea4cc0428")]
-[assembly: AssemblyVersion("1.1.0.*")]
+[assembly: AssemblyVersion("1.2.0.*")]

VAR.Json/VAR.Json.csproj

@@ -21,6 +21,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release .Net 4.6.1|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -30,6 +31,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug .Net 3.5|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -40,6 +42,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release .Net 3.5|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -49,6 +52,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <LangVersion>6</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />