using System.Runtime.CompilerServices; using System.Text.Json.Nodes; using System.Text.Json.Schema; using System.Text.Json.Serialization.Metadata; namespace System.Text.Json.Serialization.Converters { internal sealed class JsonObjectConverter : JsonConverter<JsonObject> { internal override void ConfigureJsonTypeInfo(JsonTypeInfo jsonTypeInfo, JsonSerializerOptions options) { jsonTypeInfo.CreateObjectForExtensionDataProperty = (() => new JsonObject(options.GetNodeOptions())); } internal override void ReadElementAndSetProperty(object obj, string propertyName, ref Utf8JsonReader reader, JsonSerializerOptions options, [System.Runtime.CompilerServices.ScopedRef] ref ReadStack state) { JsonNodeConverter.Instance.TryRead(ref reader, typeof(JsonNode), options, ref state, out JsonNode value, out bool _); JsonObject jsonObject = (JsonObject)obj; JsonNode value2 = value; if (options.AllowDuplicateProperties) jsonObject[propertyName] = value2; else { if (jsonObject.ContainsKey(propertyName)) ThrowHelper.ThrowJsonException_DuplicatePropertyNotAllowed(propertyName); jsonObject.Add(propertyName, value2); } } public override void Write(Utf8JsonWriter writer, JsonObject value, JsonSerializerOptions options) { if (value == null) writer.WriteNullValue(); else value.WriteTo(writer, options); } public override JsonObject Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) { switch (reader.TokenType) { case JsonTokenType.StartObject: if (!options.AllowDuplicateProperties) return ReadAsJsonNode(ref reader, options.GetNodeOptions()); return ReadAsJsonElement(ref reader, options.GetNodeOptions()); case JsonTokenType.Null: return null; default: throw ThrowHelper.GetInvalidOperationException_ExpectedObject(reader.TokenType); } } internal static JsonObject ReadAsJsonElement(ref Utf8JsonReader reader, JsonNodeOptions options) { return new JsonObject(JsonElement.ParseValue(ref reader), options); } internal static JsonObject ReadAsJsonNode(ref Utf8JsonReader reader, JsonNodeOptions options) { JsonObject jsonObject = new JsonObject(options); while (reader.Read()) { if (reader.TokenType == JsonTokenType.EndObject) return jsonObject; if (reader.TokenType != JsonTokenType.PropertyName) ThrowHelper.ThrowJsonException(null); string string = reader.GetString(); reader.Read(); JsonNode value = JsonNodeConverter.ReadAsJsonNode(ref reader, options); jsonObject.Add(string, value); } ThrowHelper.ThrowJsonException(null); return null; } internal override JsonSchema GetSchema(JsonNumberHandling _) { return new JsonSchema { Type = JsonSchemaType.Object }; } } }