protected override void ReadObjectProperties(JsonReader reader, DynamicObject result, Dictionary <string, Property> properties, JsonSerializer serializer)
{
reader.Advance();
TypeInfo?typeInfo = null;
void SetResult(IEnumerable <DynamicProperty>?properties = null)
{
reader.AssertEndObject();
result.Type = typeInfo;
if (properties?.Any() == true)
{
result.Properties = new PropertySet(properties);
}
}
if (reader.IsProperty(nameof(DynamicObject.Type)))
{
typeInfo = reader.Read <TypeInfo?>(serializer);
reader.Advance();
}
if (reader.IsProperty("Value"))
{
var value = reader.Read(typeInfo, serializer);
SetResult(new[] { new DynamicProperty(string.Empty, value) });
return;
}
if (reader.IsProperty("Values"))
{
reader.Advance();
if (reader.TokenType == JsonToken.Null)
{
SetResult();
return;
}
if (reader.TokenType != JsonToken.StartArray)
{
throw reader.CreateException($"Expected array");
}
var elementType = TypeHelper.GetElementType(typeInfo?.Type) ?? typeof(object);
bool TryReadNextItem(out object?value)
{
if (!reader.TryRead(elementType, serializer, out value))
{
// TODO: is max length quota required?
if (reader.TokenType == JsonToken.EndArray)
{
return(false);
}
throw reader.CreateException("Unexpected token structure.");
}
return(true);
}
var values = new List <object?>();
while (TryReadNextItem(out var item))
{
values.Add(item);
}
if (values.Any(x => x != null && (elementType == typeof(object) || !elementType.IsAssignableFrom(x.GetType()))) &&
values.All(x => x is null || x is string))
{
elementType = typeof(string);
}
var valueArray = CastCollectionToArrayOfType(elementType, values);
SetResult(new[] { new DynamicProperty(string.Empty, valueArray) });
return;
}
if (reader.IsProperty(nameof(DynamicObject.Properties)))
{
reader.Advance();
if (reader.TokenType == JsonToken.Null)
{
SetResult();
return;
}
if (reader.TokenType != JsonToken.StartArray)
{
throw reader.CreateException("Expected array");
}
var propertySet = new List <DynamicProperty>();
bool NextItem()
{
// TODO: is max length quota required?
reader.Advance();
return(reader.TokenType != JsonToken.EndArray);
}
while (NextItem())
{
reader.AssertStartObject(false);
reader.AssertProperty(nameof(DynamicProperty.Name));
var name = reader.ReadAsString() ?? throw reader.CreateException("Property name must not be null");
reader.AssertProperty(nameof(Type));
var type = reader.Read <TypeInfo?>(serializer);
reader.AssertProperty(nameof(DynamicProperty.Value));
var value = reader.Read(type, serializer);
reader.AssertEndObject();
propertySet.Add(new DynamicProperty(name, value));
}
SetResult(propertySet);
return;
}
throw reader.CreateException($"Unexpected token {reader.TokenType}");
}
protected override void ReadObjectProperties(JsonReader reader, DynamicObject result, Dictionary <string, Property> properties, JsonSerializer serializer)
{
reader.CheckNotNull(nameof(reader)).Advance();
result.CheckNotNull(nameof(result));
serializer.CheckNotNull(nameof(serializer));
TypeInfo?typeInfo = null;
void SetResult(IEnumerable <DynamicProperty>?properties = null)
{
reader.AssertEndObject();
result.Type = typeInfo;
if (properties?.Any() is true)
{
result.Properties = new PropertySet(properties);
}
}
if (reader.IsProperty(nameof(DynamicObject.Type)))
{
typeInfo = reader.Read <TypeInfo?>(serializer);
reader.Advance();
}
bool IsProperty(string property, out bool isDynamicValueType)
{
isDynamicValueType = false;
if (reader.IsProperty(property))
{
return(true);
}
if (reader.IsProperty($"Dynamic{property}"))
{
isDynamicValueType = true;
return(true);
}
return(false);
}
if (IsProperty(ValueProperty, out var isDynamicValue))
{
var value = isDynamicValue
? reader.Read <DynamicObject>(serializer)
: reader.Read(typeInfo, serializer);
SetResult(new[] { new DynamicProperty(string.Empty, value) });
return;
}
if (IsProperty(ValuesProperty, out isDynamicValue))
{
reader.Advance();
if (reader.TokenType == JsonToken.Null)
{
SetResult();
return;
}
if (reader.TokenType != JsonToken.StartArray)
{
throw reader.CreateException($"Expected array");
}
var elementType = TypeHelper.GetElementType(typeInfo?.ToType()) ?? typeof(object);
bool TryReadNextItem(out object?value)
{
var itemType = isDynamicValue ? typeof(DynamicObject) : elementType;
if (!reader.TryRead(itemType, serializer, out value))
{
if (reader.TokenType == JsonToken.EndArray)
{
return(false);
}
throw reader.CreateException("Unexpected token structure.");
}
return(true);
}
var values = new List <object?>();
while (TryReadNextItem(out var item))
{
values.Add(item);
}
if (isDynamicValue)
{
elementType = typeof(object);
}
else if (values.Any(x => x is not null && (elementType == typeof(object) || !elementType.IsInstanceOfType(x))) &&
values.All(x => x is null || x is string))
{
elementType = typeof(string);
}
var valueArray = values.CastCollectionToArrayOfType(elementType);
SetResult(new[] { new DynamicProperty(string.Empty, valueArray) });
return;
}
if (reader.IsProperty(nameof(DynamicObject.Properties)))
{
reader.Advance();
if (reader.TokenType == JsonToken.Null)
{
SetResult();
return;
}
if (reader.TokenType != JsonToken.StartArray)
{
throw reader.CreateException("Expected array");
}
var propertySet = new List <DynamicProperty>();
bool NextItem()
{
reader.Advance();
return(reader.TokenType != JsonToken.EndArray);
}
while (NextItem())
{
reader.AssertStartObject(false);
reader.AssertProperty(nameof(DynamicProperty.Name));
var name = reader.ReadAsString() ?? throw reader.CreateException("Property name must not be null");
reader.AssertProperty(nameof(Type));
var type = reader.Read <TypeInfo?>(serializer);
reader.AssertProperty(nameof(DynamicProperty.Value));
var value = reader.Read(type, serializer);
reader.AssertEndObject();
propertySet.Add(new DynamicProperty(name, value));
}
SetResult(propertySet);
return;
}
throw reader.CreateException($"Unexpected token {reader.TokenType}");
}
