#region License // Copyright (c) 2007 James Newton-King // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, // copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following // conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. #endregion using System; using System.Collections.Generic; using System.Reflection; using Newtonsoft.Json.Utilities; using System.Collections; #if NET20 using Newtonsoft.Json.Utilities.LinqBridge; #else using System.Linq; #endif namespace Newtonsoft.Json.Serialization { /// <summary> /// Contract details for a <see cref="System.Type"/> used by the <see cref="JsonSerializer"/>. /// </summary> internal class JsonContainerContract : JsonContract { private JsonContract _itemContract; private JsonContract _finalItemContract; // will be null for containers that don't have an item type (e.g. IList) or for complex objects internal JsonContract ItemContract { get => _itemContract; set { _itemContract = value; if (_itemContract != null) { _finalItemContract = (_itemContract.UnderlyingType.IsSealed()) ? _itemContract : null; } else { _finalItemContract = null; } } } // the final (i.e. can't be inherited from like a sealed class or valuetype) item contract internal JsonContract FinalItemContract => _finalItemContract; /// <summary> /// Gets or sets the default collection items <see cref="JsonConverter" />. /// </summary> /// <value>The converter.</value> public JsonConverter ItemConverter { get; set; } /// <summary> /// Gets or sets a value indicating whether the collection items preserve object references. /// </summary> /// <value><c>true</c> if collection items preserve object references; otherwise, <c>false</c>.</value> public bool? ItemIsReference { get; set; } /// <summary> /// Gets or sets the collection item reference loop handling. /// </summary> /// <value>The reference loop handling.</value> public ReferenceLoopHandling? ItemReferenceLoopHandling { get; set; } /// <summary> /// Gets or sets the collection item type name handling. /// </summary> /// <value>The type name handling.</value> public TypeNameHandling? ItemTypeNameHandling { get; set; } /// <summary> /// Initializes a new instance of the <see cref="JsonContainerContract"/> class. /// </summary> /// <param name="underlyingType">The underlying type for the contract.</param> internal JsonContainerContract(Type underlyingType) : base(underlyingType) { JsonContainerAttribute jsonContainerAttribute = JsonTypeReflector.GetCachedAttribute<JsonContainerAttribute>(underlyingType); if (jsonContainerAttribute != null) { if (jsonContainerAttribute.ItemConverterType != null) { ItemConverter = JsonTypeReflector.CreateJsonConverterInstance( jsonContainerAttribute.ItemConverterType, jsonContainerAttribute.ItemConverterParameters); } ItemIsReference = jsonContainerAttribute._itemIsReference; ItemReferenceLoopHandling = jsonContainerAttribute._itemReferenceLoopHandling; ItemTypeNameHandling = jsonContainerAttribute._itemTypeNameHandling; } } } }