private static void HandleStartArray( JsonSerializerOptions options, ref Utf8JsonReader reader, ref ReadObjectState current, ref List <ReadObjectState> previous, ref int arrayIndex) { Type arrayType = current.PropertyInfo.PropertyType; if (!typeof(IEnumerable).IsAssignableFrom(arrayType) || (arrayType.IsArray && arrayType.GetArrayRank() > 1)) { throw new JsonReaderException($"todo: type {arrayType.ToString()} is not convertable to array.", 0, 0); } Debug.Assert(current.IsPropertyEnumerable()); if (current.IsPropertyEnumerable()) { if (current.EnumerableCreated) { // A nested json array so push a new stack frame. Type elementType = current.ClassInfo.ElementClassInfo.GetPolicyProperty().PropertyType; SetPreviousState(ref previous, current, arrayIndex++); current.Reset(); current.ClassInfo = options.GetOrAddClass(elementType); current.PropertyInfo = current.ClassInfo.GetPolicyProperty(); current.PopStackOnEndArray = true; } else { current.EnumerableCreated = true; } // If current property is already set (from a constructor, for example) leave as-is if (current.PropertyInfo.GetValueAsObject(current.ReturnValue, options) == null) { // Create the enumerable. object value = ReadObjectState.CreateEnumerableValue(ref current, options); if (value != null) { if (current.ReturnValue != null) { current.PropertyInfo.SetValueAsObject(current.ReturnValue, value, options); } else { // Primitive arrays being returned without object current.SetReturnValue(value, options); } } } } }
private static bool HandleNull(ref ReadObjectState current, JsonSerializerOptions options) { Debug.Assert(current.PropertyInfo != null); JsonPropertyInfo propertyInfo = current.PropertyInfo; if (!propertyInfo.CanBeNull) { throw new InvalidOperationException($"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); }