#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.Globalization; using System.Reflection; using System.Runtime.Serialization; using System.Security; using Newtonsoft.Json.Linq; using Newtonsoft.Json.Utilities; namespace Newtonsoft.Json.Serialization { /// <summary> /// Contract details for a <see cref="System.Type"/> used by the <see cref="JsonSerializer"/>. /// </summary> internal class JsonObjectContract : JsonContainerContract { /// <summary> /// Gets or sets the object member serialization. /// </summary> /// <value>The member object serialization.</value> public MemberSerialization MemberSerialization { get; set; } /// <summary> /// Gets or sets a value that indicates whether the object's properties are required. /// </summary> /// <value> /// A value indicating whether the object's properties are required. /// </value> public Required? ItemRequired { get; set; } /// <summary> /// Gets or sets how the object's properties with null values are handled during serialization and deserialization. /// </summary> /// <value>How the object's properties with null values are handled during serialization and deserialization.</value> public NullValueHandling? ItemNullValueHandling { get; set; } /// <summary> /// Gets the object's properties. /// </summary> /// <value>The object's properties.</value> public JsonPropertyCollection Properties { get; } /// <summary> /// Gets a collection of <see cref="JsonProperty"/> instances that define the parameters used with <see cref="JsonObjectContract.OverrideCreator"/>. /// </summary> public JsonPropertyCollection CreatorParameters { get { if (_creatorParameters == null) { _creatorParameters = new JsonPropertyCollection(UnderlyingType); } return _creatorParameters; } } /// <summary> /// Gets or sets the function used to create the object. When set this function will override <see cref="JsonContract.DefaultCreator"/>. /// This function is called with a collection of arguments which are defined by the <see cref="JsonObjectContract.CreatorParameters"/> collection. /// </summary> /// <value>The function used to create the object.</value> public ObjectConstructor<object> OverrideCreator { get => _overrideCreator; set => _overrideCreator = value; } internal ObjectConstructor<object> ParameterizedCreator { get => _parameterizedCreator; set => _parameterizedCreator = value; } /// <summary> /// Gets or sets the extension data setter. /// </summary> public ExtensionDataSetter ExtensionDataSetter { get; set; } /// <summary> /// Gets or sets the extension data getter. /// </summary> public ExtensionDataGetter ExtensionDataGetter { get; set; } /// <summary> /// Gets or sets the extension data value type. /// </summary> public Type ExtensionDataValueType { get => _extensionDataValueType; set { _extensionDataValueType = value; ExtensionDataIsJToken = (value != null && typeof(JToken).IsAssignableFrom(value)); } } /// <summary> /// Gets or sets the extension data name resolver. /// </summary> /// <value>The extension data name resolver.</value> public Func<string, string> ExtensionDataNameResolver { get; set; } internal bool ExtensionDataIsJToken; private bool? _hasRequiredOrDefaultValueProperties; private ObjectConstructor<object> _overrideCreator; private ObjectConstructor<object> _parameterizedCreator; private JsonPropertyCollection _creatorParameters; private Type _extensionDataValueType; internal bool HasRequiredOrDefaultValueProperties { get { if (_hasRequiredOrDefaultValueProperties == null) { _hasRequiredOrDefaultValueProperties = false; if (ItemRequired.GetValueOrDefault(Required.Default) != Required.Default) { _hasRequiredOrDefaultValueProperties = true; } else { foreach (JsonProperty property in Properties) { if (property.Required != Required.Default || (property.DefaultValueHandling & DefaultValueHandling.Populate) == DefaultValueHandling.Populate) { _hasRequiredOrDefaultValueProperties = true; break; } } } } return _hasRequiredOrDefaultValueProperties.GetValueOrDefault(); } } /// <summary> /// Initializes a new instance of the <see cref="JsonObjectContract"/> class. /// </summary> /// <param name="underlyingType">The underlying type for the contract.</param> public JsonObjectContract(Type underlyingType) : base(underlyingType) { ContractType = JsonContractType.Object; Properties = new JsonPropertyCollection(UnderlyingType); } #if HAVE_BINARY_FORMATTER #if !NET20 [SecuritySafeCritical] #endif internal object GetUninitializedObject() { // we should never get here if the environment is not fully trusted, check just in case if (!JsonTypeReflector.FullyTrusted) { throw new JsonException("Insufficient permissions. Creating an uninitialized '{0}' type requires full trust.".FormatWith(CultureInfo.InvariantCulture, NonNullableUnderlyingType)); } return FormatterServices.GetUninitializedObject(NonNullableUnderlyingType); } #endif } }