public void Serialize(object obj, SerializationOptions options)
{
if (obj == null)
{
Write("null");
return;
}
var objectType = obj.GetType();
var converter = options?.Converters?.FirstOrDefault(c => c.GetConvertingType() == objectType);
if (converter != null)
{
Serialize(converter.Serializer(obj), options);
return;
}
Func <object, string> cnv;
Type genericType;
if (!SerializerCache.TryGetValue(objectType, out cnv))
{
var strConverter = new Func <object, string>(
s =>
{
var t = (string)s;
var r = "\"";
for (var i = 0; i < t.Length; i++)
{
var c = t[i];
r += c == '\r' ? "\\r" :
c == '\n' ? "\\n" :
c == '\t' ? "\\t" :
c == '"' ? "\\\"" :
c == '\\' ? "\\\\" :
c == '/' ? "\\/" :
c == '\b' ? "\\b" :
c == '\f' ? "\\f" :
c.ToString();
}
r += "\"";
return(r);
});
if (obj is string)
{
cnv = strConverter;
}
else if (obj is IEnumerable)
{
Write(obj is IDictionary ? "{" : "[");
var first = true;
foreach (var o in (IEnumerable)obj)
{
if (first)
{
first = false;
}
else
{
Write(",");
}
Serialize(o, options);
}
Write(obj is IDictionary ? "}" : "]");
return;
}
else if (obj is bool || obj is bool?)
{
cnv = b => (bool)b ? "true" : "false";
}
else if (obj is int || obj is int? ||
obj is short || obj is short? ||
obj is long || obj is long? ||
obj is uint || obj is uint? ||
obj is ushort || obj is ushort? ||
obj is ulong || obj is ulong? ||
obj is float || obj is float? ||
obj is double || obj is double? ||
obj is decimal || obj is decimal?||
obj is float || obj is uint? ||
obj is ushort || obj is ushort? ||
obj is ulong || obj is ulong?)
{
cnv = n => string.Format(CultureInfo.InvariantCulture, "{0}", n);
}
else if (obj is DateTime || obj is DateTime?)
{
cnv = d => strConverter(((DateTime)d).ToString(CultureInfo.InvariantCulture));
}
else if (obj is DateTimeOffset || obj is DateTimeOffset?)
{
cnv = d => strConverter(((DateTimeOffset)d).ToString(CultureInfo.InvariantCulture));
}
else if (obj is TimeSpan || obj is TimeSpan?)
{
cnv = d => strConverter(((TimeSpan)d).ToString("c"));
}
else if (obj is Enum)
{
cnv = e => ((int)e).ToString(CultureInfo.InvariantCulture);
}
else if (objectType.IsGenericType &&
objectType.GenericTypeArguments.Length == 2 &&
objectType == (genericType = typeof(KeyValuePair <,>).MakeGenericType(objectType.GenericTypeArguments)))
{
var k = genericType.GetProperty("Key").GetValue(obj).ToString();
var v = genericType.GetProperty("Value").GetValue(obj);
Write(strConverter(k));
Write(":");
Serialize(v, options);
return;
}
else if (!objectType.IsPrimitive)
{
Write("{");
var first = true;
foreach (var m in SerializerMap.GetSerializerMap(objectType)
.Members)
{
if (first)
{
first = false;
}
else
{
Write(",");
}
if (objectType == typeof(DictionaryEntry))
{
var d = (DictionaryEntry)obj;
Write(strConverter(d.Key.ToString()));
Write(":");
Serialize(d.Value, options);
}
else
{
string memberName = m.Name;
if (options?.PropertyNameTransform != null)
{
memberName = options?.PropertyNameTransform.Transform(m.Name);
}
Write(strConverter(memberName));
Write(":");
try
{
Serialize(m.GetValue(obj), options);
}
catch (TargetInvocationException)
{
Serialize(null, options);
}
}
}
Write("}");
return;
}
SerializerCache[objectType] =
cnv ??
throw new InvalidOperationException(
"Unknown object type! " + objectType.FullName);;
}
Write(cnv(obj));
}
public object FromJson(Type type)
{
object result;
SkipWhite();
if (NextChar == '{')
{
ReadNext();
SkipWhite();
if (type.IsValueType)
{
throw new FormatException("Unexpected type!");
}
result = Activator.CreateInstance(type);
var nameType = result is IDictionary ?
type.GenericTypeArguments[0] :
typeof(string);
var valueType = result is IDictionary ?
type.GenericTypeArguments[1] :
null;
var mIndex = 0;
while (NextChar != '}')
{
var name = (string)FromJson(nameType);
SkipWhite();
Match(":");
var map = SerializerMap.GetSerializerMap(type);
MemberAccessor field = null;
if (valueType == null)
{
for (var i = mIndex; i < map.Members.Length; i++)
{
string memberName = map.Members[i].Name;
if (PropertyNameTransform != null)
{
memberName = PropertyNameTransform.Transform(memberName);
}
if (memberName == name)
{
field = map.Members[i];
break;
}
}
}
var fieldType = field == null ? valueType : field.ValueType;
var value = FromJson(fieldType);
if (field != null)
{
field.SetValue(result, value);
}
else
{
((IDictionary)result).Add(name, value);
}
SkipWhite();
if (NextChar == ',')
{
ReadNext();
SkipWhite();
continue;
}
break;
}
Match("}");
return(result);
}
if (NextChar == '[')
{
ReadNext();
SkipWhite();
var elementType =
type.IsArray ?
type.GetElementType() :
type.IsGenericType ?
type.GenericTypeArguments[0] :
typeof(object);
var list =
type.IsArray ?
new ArrayList() :
(IList)Activator.CreateInstance(type);
while (NextChar != ']')
{
var item = FromJson(elementType);
list.Add(item);
SkipWhite();
if (NextChar == ',')
{
ReadNext();
SkipWhite();
continue;
}
break;
}
Match("]");
if (list is ArrayList)
{
return(((ArrayList)list).ToArray(elementType));
}
else
{
return(list);
}
}
if (NextChar == '"')
{
ReadNext();
while (!EndOfStream && NextChar != '"')
{
if (NextChar == '\\')
{
ReadNext();
switch (NextChar)
{
case 'b':
case 't':
case 'n':
case 'f':
case 'r':
text.Append(EscapeMap[NextChar]);
break;
case 'u':
ReadNext();
var unicode = "";
while (unicode.Length < 4 && IsHexDigit)
{
unicode += NextChar;
ReadNext();
}
text.Append(char.ConvertFromUtf32(int.Parse("0x" + unicode)));
continue;
default:
text.Append(NextChar);
break;
}
}
else
{
text.Append(NextChar);
}
ReadNext();
}
SkipWhite();
Match("\"");
result = text.ToString();
text.Clear();
var converter = Converters?.FirstOrDefault(c => c.GetConvertingType() == type);
if (converter != null)
{
return(converter.Deserializer((string)result));
}
if (type == typeof(DateTime) ||
type == typeof(DateTime?))
{
return(DateTime.Parse((string)result, CultureInfo.InvariantCulture));
}
if (type == typeof(DateTimeOffset) ||
type == typeof(DateTimeOffset?))
{
return(DateTimeOffset.Parse((string)result, CultureInfo.InvariantCulture));
}
if (type == typeof(TimeSpan) ||
type == typeof(TimeSpan?))
{
return(TimeSpan.Parse((string)result, CultureInfo.InvariantCulture));
}
return(result);
}
else if (NextChar == 't')
{
Match("true");
return(true);
}
else if (NextChar == 'f')
{
Match("false");
return(false);
}
else if (NextChar == 'n')
{
Match("null");
if (!(type.IsClass ||
Nullable.GetUnderlyingType(type) != null))
{
throw new InvalidDataException("Type " + type.Name + "'s value cannot be null!");
}
return(null);
}
else if (NextChar == '-' || IsDigit)
{
if (NextChar == '-')
{
text.Append('-');
ReadNext();
}
if (NextChar == '0')
{
text.Append('0');
ReadNext();
}
else if (IsDigit)
{
do
{
text.Append(NextChar);
ReadNext();
}while (IsDigit);
}
else
{
throw new FormatException("Digit expected!");
}
if (NextChar == '.')
{
text.Append('.');
ReadNext();
while (IsDigit)
{
text.Append(NextChar);
ReadNext();
}
}
if (NextChar == 'e' || NextChar == 'E')
{
text.Append('e');
ReadNext();
if (NextChar == '+' || NextChar == '-')
{
text.Append(NextChar);
ReadNext();
}
while (IsDigit)
{
text.Append(NextChar);
ReadNext();
}
}
var t = text.ToString();
text.Clear();
var inv = CultureInfo.InvariantCulture;
if (type.IsEnum ||
type == typeof(int) ||
type == typeof(int?))
{
return(int.Parse(t, inv));
}
if (type == typeof(long) ||
type == typeof(long?))
{
return(long.Parse(t, inv));
}
return(double.Parse(t, inv));
}
throw new FormatException("Unexpected character! " + NextChar);
}