Example #1
0
        public static void WriteStringArray(ITypeSerializer serializer, TextWriter writer, object oList)
        {
            writer.Write(JsWriter.ListStartChar);

            var list       = (string[])oList;
            var ranOnce    = false;
            var listLength = list.Length;

            for (var i = 0; i < listLength; i++)
            {
                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);
                serializer.WriteString(writer, list[i]);
            }

            writer.Write(JsWriter.ListEndChar);
        }
Example #2
0
        //TODO: optimize ExtractType
        public static Type ExtractType(StringSegment strType)
        {
            if (!strType.HasValue || strType.Length <= 1)
            {
                return(null);
            }

            var hasWhitespace = Json.JsonUtils.WhiteSpaceChars.Contains(strType.GetChar(1));

            if (hasWhitespace)
            {
                var pos = strType.IndexOf('"');
                if (pos >= 0)
                {
                    strType = new StringSegment("{" + strType.Substring(pos, strType.Length - pos));
                }
            }

            var typeAttrInObject = Serializer.TypeAttrInObject;

            if (strType.Length > typeAttrInObject.Length &&
                strType.Substring(0, typeAttrInObject.Length) == typeAttrInObject)
            {
                var propIndex = typeAttrInObject.Length;
                var typeName  = Serializer.UnescapeSafeString(Serializer.EatValue(strType, ref propIndex)).Value;

                var type = JsConfig.TypeFinder(typeName);

                JsWriter.AssertAllowedRuntimeType(type);

                if (type == null)
                {
                    Tracer.Instance.WriteWarning("Could not find type: " + typeName);
                    return(null);
                }

                return(PclExport.Instance.UseType(type));
            }
            return(null);
        }
Example #3
0
        public static void WriteIEnumerable(TextWriter writer, object oValueCollection)
        {
            WriteObjectDelegate toStringFn = null;

            writer.Write(JsWriter.ListStartChar);

            var  valueCollection = (IEnumerable)oValueCollection;
            var  ranOnce         = false;
            Type lastType        = null;

            foreach (var valueItem in valueCollection)
            {
                if ((toStringFn == null) || (valueItem != null && valueItem.GetType() != lastType))
                {
                    if (valueItem != null)
                    {
                        if (valueItem.GetType() != lastType)
                        {
                            lastType   = valueItem.GetType();
                            toStringFn = Serializer.GetWriteFn(lastType);
                        }
                    }
                    else
                    {
                        // this can happen if the first item in the collection was null
                        lastType   = typeof(object);
                        toStringFn = Serializer.GetWriteFn(lastType);
                    }
                }

                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);

                toStringFn(writer, valueItem);
            }

            writer.Write(JsWriter.ListEndChar);
        }
Example #4
0
        internal static object StringToType(
            TypeConfig typeConfig,
            StringSegment strType,
            EmptyCtorDelegate ctorFn,
            Dictionary <HashedStringSegment, TypeAccessor> typeAccessorMap)
        {
            var index = 0;
            var type  = typeConfig.Type;

            if (!strType.HasValue)
            {
                return(null);
            }

            var buffer        = strType.Buffer;
            var offset        = strType.Offset;
            var strTypeLength = strType.Length;

            //if (!Serializer.EatMapStartChar(strType, ref index))
            for (; index < strTypeLength; index++)
            {
                if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                {
                    break;
                }
            }                                                                                                      //Whitespace inline
            if (buffer[offset + index] != JsWriter.MapStartChar)
            {
                throw DeserializeTypeRef.CreateSerializationError(type, strType.Value);
            }

            index++;
            if (JsonTypeSerializer.IsEmptyMap(strType, index))
            {
                return(ctorFn());
            }

            object instance = null;

            var propertyResolver = JsConfig.PropertyConvention == PropertyConvention.Lenient
                ? ParseUtils.LenientPropertyNameResolver
                : ParseUtils.DefaultPropertyNameResolver;

            while (index < strTypeLength)
            {
                var propertyName = JsonTypeSerializer.ParseJsonString(strType, ref index);

                //Serializer.EatMapKeySeperator(strType, ref index);
                for (; index < strTypeLength; index++)
                {
                    if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                    {
                        break;
                    }
                }                                                                                                      //Whitespace inline
                if (strTypeLength != index)
                {
                    index++;
                }

                var propertyValueStr = Serializer.EatValue(strType, ref index);
                var possibleTypeInfo = propertyValueStr != null && propertyValueStr.Length > 1;

                //if we already have an instance don't check type info, because then we will have a half deserialized object
                //we could throw here or just use the existing instance.
                if (instance == null && possibleTypeInfo && propertyName == typeAttr)
                {
                    var explicitTypeName = Serializer.ParseString(propertyValueStr);
                    var explicitType     = JsConfig.TypeFinder(explicitTypeName);

                    if (explicitType == null || explicitType.IsInterface || explicitType.IsAbstract)
                    {
                        Tracer.Instance.WriteWarning("Could not find type: " + propertyValueStr);
                    }
                    else if (!type.IsAssignableFrom(explicitType))
                    {
                        Tracer.Instance.WriteWarning("Could not assign type: " + propertyValueStr);
                    }
                    else
                    {
                        JsWriter.AssertAllowedRuntimeType(explicitType);
                        instance = explicitType.CreateInstance();
                    }

                    if (instance != null)
                    {
                        //If __type info doesn't match, ignore it.
                        if (!type.IsInstanceOfType(instance))
                        {
                            instance = null;
                        }
                        else
                        {
                            var derivedType = instance.GetType();
                            if (derivedType != type)
                            {
                                var derivedTypeConfig = new TypeConfig(derivedType);
                                var map = DeserializeTypeRef.GetTypeAccessorMap(derivedTypeConfig, Serializer);
                                if (map != null)
                                {
                                    typeAccessorMap = map;
                                }
                            }
                        }
                    }

                    Serializer.EatItemSeperatorOrMapEndChar(strType, ref index);
                    continue;
                }

                if (instance == null)
                {
                    instance = ctorFn();
                }

                var typeAccessor = propertyResolver.GetTypeAccessorForProperty(propertyName, typeAccessorMap);

                var propType = possibleTypeInfo && propertyValueStr.GetChar(0) == '_' ? TypeAccessor.ExtractType(Serializer, propertyValueStr) : null;
                if (propType != null)
                {
                    try
                    {
                        if (typeAccessor != null)
                        {
                            //var parseFn = Serializer.GetParseFn(propType);
                            var parseFn = JsonReader.GetParseStringSegmentFn(propType);

                            var propertyValue = parseFn(propertyValueStr);
                            if (typeConfig.OnDeserializing != null)
                            {
                                propertyValue = typeConfig.OnDeserializing(instance, propertyName.Value, propertyValue);
                            }
                            typeAccessor.SetProperty(instance, propertyValue);
                        }

                        //Serializer.EatItemSeperatorOrMapEndChar(strType, ref index);
                        for (; index < strTypeLength; index++)
                        {
                            if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                            {
                                break;
                            }
                        }                                                                                                      //Whitespace inline
                        if (index != strTypeLength)
                        {
                            var success = buffer[offset + index] == JsWriter.ItemSeperator || buffer[offset + index] == JsWriter.MapEndChar;
                            index++;
                            if (success)
                            {
                                for (; index < strTypeLength; index++)
                                {
                                    if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                                    {
                                        break;
                                    }
                                }                                                                                                      //Whitespace inline
                            }
                        }

                        continue;
                    }
                    catch (Exception e)
                    {
                        JsConfig.OnDeserializationError?.Invoke(instance, propType, propertyName.Value, propertyValueStr.Value, e);
                        if (JsConfig.ThrowOnDeserializationError)
                        {
                            throw DeserializeTypeRef.GetSerializationException(propertyName.Value, propertyValueStr.Value, propType, e);
                        }
                        else
                        {
                            Tracer.Instance.WriteWarning("WARN: failed to set dynamic property {0} with: {1}", propertyName, propertyValueStr.Value);
                        }
                    }
                }

                if (typeAccessor?.GetProperty != null && typeAccessor.SetProperty != null)
                {
                    try
                    {
                        var propertyValue = typeAccessor.GetProperty(propertyValueStr);
                        if (typeConfig.OnDeserializing != null)
                        {
                            propertyValue = typeConfig.OnDeserializing(instance, propertyName.Value, propertyValue);
                        }
                        typeAccessor.SetProperty(instance, propertyValue);
                    }
                    catch (NotSupportedException) { throw; }
                    catch (Exception e)
                    {
                        JsConfig.OnDeserializationError?.Invoke(instance, propType ?? typeAccessor.PropertyType, propertyName.Value, propertyValueStr.Value, e);
                        if (JsConfig.ThrowOnDeserializationError)
                        {
                            throw DeserializeTypeRef.GetSerializationException(propertyName.Value, propertyValueStr.Value, typeAccessor.PropertyType, e);
                        }
                        else
                        {
                            Tracer.Instance.WriteWarning("WARN: failed to set property {0} with: {1}", propertyName, propertyValueStr.Value);
                        }
                    }
                }
                else
                {
                    // the property is not known by the DTO
                    typeConfig.OnDeserializing?.Invoke(instance, propertyName.Value, propertyValueStr.Value);
                }

                //Serializer.EatItemSeperatorOrMapEndChar(strType, ref index);
                for (; index < strTypeLength; index++)
                {
                    if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                    {
                        break;
                    }
                }                                                                                                      //Whitespace inline
                if (index != strType.Length)
                {
                    var success = buffer[offset + index] == JsWriter.ItemSeperator || buffer[offset + index] == JsWriter.MapEndChar;
                    index++;
                    if (success)
                    {
                        for (; index < strTypeLength; index++)
                        {
                            if (!JsonUtils.IsWhiteSpace(buffer[offset + index]))
                            {
                                break;
                            }
                        }                                                                                                      //Whitespace inline
                    }
                }
            }

            return(instance);
        }
Example #5
0
        public static void WriteGenericIDictionary(
            TextWriter writer,
            IDictionary <TKey, TValue> map,
            WriteObjectDelegate writeKeyFn,
            WriteObjectDelegate writeValueFn)
        {
            if (map == null)
            {
                writer.Write(JsonUtils.Null);
                return;
            }
            writer.Write(JsWriter.MapStartChar);

            var encodeMapKey = Serializer.GetTypeInfo(typeof(TKey)).EncodeMapKey;

            var ranOnce = false;

            foreach (var kvp in map)
            {
                var isNull = (kvp.Value == null);
                if (isNull && !Serializer.IncludeNullValuesInDictionaries)
                {
                    continue;
                }

                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);

                JsState.WritingKeyCount++;
                try
                {
                    if (encodeMapKey)
                    {
                        JsState.IsWritingValue = true; //prevent ""null""
                        try
                        {
                            writer.Write(JsWriter.QuoteChar);
                            writeKeyFn(writer, kvp.Key);
                            writer.Write(JsWriter.QuoteChar);
                        }
                        finally
                        {
                            JsState.IsWritingValue = false;
                        }
                    }
                    else
                    {
                        writeKeyFn(writer, kvp.Key);
                    }
                }
                finally
                {
                    JsState.WritingKeyCount--;
                }

                writer.Write(JsWriter.MapKeySeperator);

                if (isNull)
                {
                    writer.Write(JsonUtils.Null);
                }
                else
                {
                    JsState.IsWritingValue = true;
                    try
                    {
                        writeValueFn(writer, kvp.Value);
                    }
                    finally
                    {
                        JsState.IsWritingValue = false;
                    }
                }
            }

            writer.Write(JsWriter.MapEndChar);
        }
Example #6
0
        public static void WriteIDictionary(TextWriter writer, object oMap)
        {
            WriteObjectDelegate writeKeyFn   = null;
            WriteObjectDelegate writeValueFn = null;

            writer.Write(JsWriter.MapStartChar);
            var  encodeMapKey  = false;
            Type lastKeyType   = null;
            Type lastValueType = null;

            var map     = (IDictionary)oMap;
            var ranOnce = false;

            foreach (var key in map.Keys)
            {
                var dictionaryValue = map[key];

                var isNull = (dictionaryValue == null);
                if (isNull && !Serializer.IncludeNullValuesInDictionaries)
                {
                    continue;
                }

                var keyType = key.GetType();
                if (writeKeyFn == null || lastKeyType != keyType)
                {
                    lastKeyType  = keyType;
                    writeKeyFn   = Serializer.GetWriteFn(keyType);
                    encodeMapKey = Serializer.GetTypeInfo(keyType).EncodeMapKey;
                }

                JsWriter.WriteItemSeperatorIfRanOnce(writer, ref ranOnce);

                JsState.WritingKeyCount++;
                try
                {
                    if (encodeMapKey)
                    {
                        JsState.IsWritingValue = true; //prevent ""null""
                        try
                        {
                            writer.Write(JsWriter.QuoteChar);
                            writeKeyFn(writer, key);
                            writer.Write(JsWriter.QuoteChar);
                        }
                        finally
                        {
                            JsState.IsWritingValue = false;
                        }
                    }
                    else
                    {
                        writeKeyFn(writer, key);
                    }
                }
                finally
                {
                    JsState.WritingKeyCount--;
                }

                writer.Write(JsWriter.MapKeySeperator);

                if (isNull)
                {
                    writer.Write(JsonUtils.Null);
                }
                else
                {
                    var valueType = dictionaryValue.GetType();
                    if (writeValueFn == null || lastValueType != valueType)
                    {
                        lastValueType = valueType;
                        writeValueFn  = Serializer.GetWriteFn(valueType);
                    }

                    JsState.IsWritingValue = true;
                    try
                    {
                        writeValueFn(writer, dictionaryValue);
                    }
                    finally
                    {
                        JsState.IsWritingValue = false;
                    }
                }
            }

            writer.Write(JsWriter.MapEndChar);
        }