private static bool HandleNull(ref ReadObjectState current, JsonSerializerOptions options) { Debug.Assert(current.PropertyInfo != null); JsonPropertyInfo propertyInfo = current.PropertyInfo; if (!propertyInfo.CanBeNull) { throw new InvalidOperationException($"todo: {propertyInfo.PropertyType} can't be null"); } if (current.IsEnumerable() || current.IsPropertyEnumerable()) { ReadObjectState.SetReturnValue(null, options, ref current); return(false); } if (current.ReturnValue == null) { return(true); } if (!propertyInfo.IgnoreNullPropertyValueOnRead(options)) { current.PropertyInfo.SetValueAsObject(current.ReturnValue, null, options); } return(false); }
private static void HandleStartObject(JsonSerializerOptions options, Type returnType, ref ReadObjectState current, ref List <ReadObjectState> previous, ref int arrayIndex) { Type objType; if (current.IsEnumerable() || current.IsPropertyEnumerable()) { // An array of objects either on the current property or on a list objType = current.GetElementType(); JsonPropertyInfo propInfo = current.PropertyInfo; SetPreviousState(ref previous, current, arrayIndex++); current.Reset(); current.ClassInfo = options.GetOrAddClass(objType); current.ReturnValue = current.ClassInfo.CreateObject(); } else if (current.PropertyInfo != null) { // Nested object objType = current.PropertyInfo.PropertyType; SetPreviousState(ref previous, current, arrayIndex++); current.Reset(); current.ClassInfo = options.GetOrAddClass(objType); current.ReturnValue = current.ClassInfo.CreateObject(); } else { // Initial object type objType = returnType; Debug.Assert(current.ClassInfo != null); current.ReturnValue = current.ClassInfo.CreateObject(); } }
private static bool HandleValue(JsonSerializerOptions options, ref Utf8JsonReader reader, ref ReadObjectState current) { Debug.Assert(current.PropertyInfo != null); bool lastCall = (!current.IsEnumerable() && !current.IsPropertyEnumerable() && current.ReturnValue == null); current.PropertyInfo.Read(options, ref current, ref reader); return(lastCall); }
private static bool HandleValue(JsonTokenType tokenType, JsonSerializerOptions options, ref Utf8JsonReader reader, ref ReadObjectState current) { if (current.PropertyInfo == null) { return(false); } bool lastCall = (!current.IsEnumerable() && !current.IsPropertyEnumerable() && current.ReturnValue == null); current.PropertyInfo.Read(tokenType, options, ref current, ref reader); return(lastCall); }
private static bool HandleEndArray( JsonSerializerOptions options, ref ReadObjectState current, ref List <ReadObjectState> previous, ref int arrayIndex) { IEnumerable value = ReadObjectState.GetEnumerableValue(current); if (value == null) { // We added the items to the list property already. current.ResetProperty(); return(false); } bool lastFrame = (arrayIndex == 0); bool setPropertyDirectly; if (current.TempEnumerableValues != null) { JsonEnumerableConverter converter = current.PropertyInfo.EnumerableConverter; if (converter == null) { converter = current.ClassInfo.EnumerableConverter; } Type elementType = current.GetElementType(); value = converter.CreateFromList(elementType, (IList)value); setPropertyDirectly = true; } else { setPropertyDirectly = false; } if (current.PopStackOnEndArray) { ReadObjectState previousFrame = default; GetPreviousState(ref previous, ref previousFrame, --arrayIndex); current = previousFrame; } if (lastFrame) { if (current.ReturnValue == null) { // Returning a converted list or object. current.Reset(); current.ReturnValue = value; return(true); } else if (current.IsEnumerable()) { // Returning a non-converted list. return(true); } // else there must be an outer object, so we'll return false here. } ReadObjectState.SetReturnValue(value, options, ref current, setPropertyDirectly: setPropertyDirectly); return(false); }