-Refactor

Src/Newtonsoft.Json.Tests/JsonTextWriterTest.cs

@@ -25,6 +25,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Globalization;
 #if NET20
 using Newtonsoft.Json.Utilities.LinqBridge;
@@ -746,12 +747,12 @@ namespace Newtonsoft.Json.Tests
       {
         jsonWriter.WriteStartArray();
 
+        jsonWriter.WriteValue(int.MaxValue);
+        jsonWriter.WriteValue(int.MinValue);
         jsonWriter.WriteValue(0);
         jsonWriter.WriteValue(-0);
         jsonWriter.WriteValue(9L);
         jsonWriter.WriteValue(9UL);
-        jsonWriter.WriteValue(int.MaxValue);
-        jsonWriter.WriteValue(int.MinValue);
         jsonWriter.WriteValue(long.MaxValue);
         jsonWriter.WriteValue(long.MinValue);
         jsonWriter.WriteValue(ulong.MaxValue);
@@ -763,12 +764,12 @@ namespace Newtonsoft.Json.Tests
       Console.WriteLine(sb.ToString());
 
       Assert.AreEqual(@"[
-  0,
-  0,
-  9,
-  9,
   2147483647,
   -2147483648,
+  0,
+  0,
+  9,
+  9,
   9223372036854775807,
   -9223372036854775808,
   18446744073709551615,

Src/Newtonsoft.Json/Bson/BsonBinaryWriter.cs

@@ -88,7 +88,7 @@ namespace Newtonsoft.Json.Bson
           {
             BsonArray value = (BsonArray)t;
             _writer.Write(value.CalculatedSize);
-            int index = 0;
+            ulong index = 0;
             foreach (BsonToken c in value)
             {
               _writer.Write((sbyte)c.Type);
@@ -261,7 +261,7 @@ namespace Newtonsoft.Json.Bson
             BsonArray value = (BsonArray)t;
 
             int size = 4;
-            int index = 0;
+            ulong index = 0;
             foreach (BsonToken c in value)
             {
               size += 1;

Src/Newtonsoft.Json/JsonTextWriter.cs

@@ -686,61 +686,22 @@ namespace Newtonsoft.Json
         _writeBuffer = new char[64];
     }
 
-    private void WriteIntegerValue(int value)
-    {
-      EnsureWriteBuffer();
-
-      if (value >= 0 && value <= 9)
-      {
-        _writer.Write((char)(48 + value));
-      }
-      else
-      {
-        int length = 0;
-
-        uint uvalue = (value < 0) ? (uint)-value : (uint)value;
-
-        do
-        {
-          _writeBuffer[length++] = (char)(48 + (uvalue % 10));
-          uvalue /= 10;
-        } while (uvalue != 0);
-
-        if (value < 0)
-          _writeBuffer[length++] = '-';
-
-        Array.Reverse(_writeBuffer, 0, length);
-
-        _writer.Write(_writeBuffer, 0, length);
-      }
-    }
-
     private void WriteIntegerValue(long value)
     {
       EnsureWriteBuffer();
 
       if (value >= 0 && value <= 9)
       {
-        _writer.Write((char)(48 + value));
+        _writer.Write((char)('0' + value));
       }
       else
       {
-        int length = 0;
-
         ulong uvalue = (value < 0) ? (ulong)-value : (ulong)value;
 
-        do
-        {
-          _writeBuffer[length++] = (char)(48 + (uvalue % 10));
-          uvalue /= 10;
-        } while (uvalue != 0);
-
         if (value < 0)
-          _writeBuffer[length++] = '-';
+          _writer.Write('-');
 
-        Array.Reverse(_writeBuffer, 0, length);
-
-        _writer.Write(_writeBuffer, 0, length);
+        WriteIntegerValue(uvalue);
       }
     }
 
@@ -750,20 +711,19 @@ namespace Newtonsoft.Json
 
       if (uvalue <= 9)
       {
-        _writer.Write((char)(48 + uvalue));
+        _writer.Write((char)('0' + uvalue));
       }
       else
       {
+        int totalLength = MathUtils.IntLength(uvalue);
         int length = 0;
 
         do
         {
-          _writeBuffer[length++] = (char)(48 + (uvalue % 10));
+          _writeBuffer[totalLength - ++length] = (char)('0' + (uvalue % 10));
           uvalue /= 10;
         } while (uvalue != 0);
 
-        Array.Reverse(_writeBuffer, 0, length);
-
         _writer.Write(_writeBuffer, 0, length);
       }
     }

Src/Newtonsoft.Json/Serialization/JsonContract.cs

@@ -76,6 +76,7 @@ namespace Newtonsoft.Json.Serialization
     internal ReadType InternalReadType;
     internal JsonContractType ContractType;
     internal bool IsReadOnlyOrFixedSize;
+    internal bool IsInstantiable;
 
     private List<SerializationCallback> _onDeserializedCallbacks;
     private IList<SerializationCallback> _onDeserializingCallbacks;
@@ -280,6 +281,7 @@ namespace Newtonsoft.Json.Serialization
       UnderlyingType = underlyingType;
 
       IsSealed = underlyingType.IsSealed();
+      IsInstantiable = !(underlyingType.IsInterface() || underlyingType.IsAbstract());
 
       IsNullable = ReflectionUtils.IsNullable(underlyingType);
       NonNullableUnderlyingType = (IsNullable && ReflectionUtils.IsNullableType(underlyingType)) ? Nullable.GetUnderlyingType(underlyingType) : underlyingType;

Src/Newtonsoft.Json/Serialization/JsonSerializerInternalReader.cs

@@ -362,11 +362,13 @@ namespace Newtonsoft.Json.Serialization
       if (ReadSpecialProperties(reader, ref objectType, ref contract, member, containerContract, containerMember, existingValue, out newValue, out id))
         return newValue;
 
-      if (!HasDefinedType(objectType))
-        return CreateJObject(reader);
+      if (contract == null || objectType == typeof(object) || objectType == typeof(IDynamicMetaObjectProvider))
+      {
+        if (!HasDefinedType(objectType))
+          return CreateJObject(reader);
 
-      if (contract == null)
         throw JsonSerializationException.Create(reader, "Could not resolve type '{0}' to a JsonContract.".FormatWith(CultureInfo.InvariantCulture, objectType));
+      }
 
       switch (contract.ContractType)
       {
@@ -1634,7 +1636,7 @@ To fix this error either change the environment to be fully trusted, change the
     {
       object newObject = null;
 
-      if (objectContract.UnderlyingType.IsInterface() || objectContract.UnderlyingType.IsAbstract())
+      if (!objectContract.IsInstantiable)
         throw JsonSerializationException.Create(reader, "Could not create an instance of type {0}. Type is an interface or abstract class and cannot be instantiated.".FormatWith(CultureInfo.InvariantCulture, objectContract.UnderlyingType));
 
       if (objectContract.OverrideConstructor != null)

Src/Newtonsoft.Json/Utilities/MathUtils.cs

@@ -31,15 +31,36 @@ namespace Newtonsoft.Json.Utilities
 {
   internal static class MathUtils
   {
-    public static int IntLength(int i)
+    public static int IntLength(ulong i)
     {
-      if (i < 0)
-        throw new ArgumentOutOfRangeException();
+      if (i < 10000000000)
+      {
+        if (i < 10) return 1;
+        if (i < 100) return 2;
+        if (i < 1000) return 3;
+        if (i < 10000) return 4;
+        if (i < 100000) return 5;
+        if (i < 1000000) return 6;
+        if (i < 10000000) return 7;
+        if (i < 100000000) return 8;
+        if (i < 1000000000) return 9;
 
-      if (i == 0)
-        return 1;
+        return 10;
+      }
+      else
+      {
+        if (i < 100000000000) return 11;
+        if (i < 1000000000000) return 12;
+        if (i < 10000000000000) return 13;
+        if (i < 100000000000000) return 14;
+        if (i < 1000000000000000) return 15;
+        if (i < 10000000000000000) return 16;
+        if (i < 100000000000000000) return 17;
+        if (i < 1000000000000000000) return 18;
+        if (i < 10000000000000000000) return 19;
 
-      return (int)Math.Floor(Math.Log10(i)) + 1;
+        return 20;
+      }
     }
 
     public static char IntToHex(int n)