csharp-sdk-upm/Libs/Newtonsoft.Json.AOT/Serialization/JsonContract.cs

326 lines
12 KiB
C#

#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;
using System.Collections.Generic;
using System.Reflection;
using System.Runtime.Serialization;
using LC.Newtonsoft.Json.Linq;
using LC.Newtonsoft.Json.Utilities;
namespace LC.Newtonsoft.Json.Serialization
{
internal enum JsonContractType
{
None = 0,
Object = 1,
Array = 2,
Primitive = 3,
String = 4,
Dictionary = 5,
Dynamic = 6,
Serializable = 7,
Linq = 8
}
/// <summary>
/// Handles <see cref="JsonSerializer"/> serialization callback events.
/// </summary>
/// <param name="o">The object that raised the callback event.</param>
/// <param name="context">The streaming context.</param>
public delegate void SerializationCallback(object o, StreamingContext context);
/// <summary>
/// Handles <see cref="JsonSerializer"/> serialization error callback events.
/// </summary>
/// <param name="o">The object that raised the callback event.</param>
/// <param name="context">The streaming context.</param>
/// <param name="errorContext">The error context.</param>
public delegate void SerializationErrorCallback(object o, StreamingContext context, ErrorContext errorContext);
/// <summary>
/// Sets extension data for an object during deserialization.
/// </summary>
/// <param name="o">The object to set extension data on.</param>
/// <param name="key">The extension data key.</param>
/// <param name="value">The extension data value.</param>
public delegate void ExtensionDataSetter(object o, string key, object? value);
/// <summary>
/// Gets extension data for an object during serialization.
/// </summary>
/// <param name="o">The object to set extension data on.</param>
public delegate IEnumerable<KeyValuePair<object, object>>? ExtensionDataGetter(object o);
/// <summary>
/// Contract details for a <see cref="System.Type"/> used by the <see cref="JsonSerializer"/>.
/// </summary>
public abstract class JsonContract
{
internal bool IsNullable;
internal bool IsConvertable;
internal bool IsEnum;
internal Type NonNullableUnderlyingType;
internal ReadType InternalReadType;
internal JsonContractType ContractType;
internal bool IsReadOnlyOrFixedSize;
internal bool IsSealed;
internal bool IsInstantiable;
private List<SerializationCallback>? _onDeserializedCallbacks;
private List<SerializationCallback>? _onDeserializingCallbacks;
private List<SerializationCallback>? _onSerializedCallbacks;
private List<SerializationCallback>? _onSerializingCallbacks;
private List<SerializationErrorCallback>? _onErrorCallbacks;
private Type _createdType;
/// <summary>
/// Gets the underlying type for the contract.
/// </summary>
/// <value>The underlying type for the contract.</value>
public Type UnderlyingType { get; }
/// <summary>
/// Gets or sets the type created during deserialization.
/// </summary>
/// <value>The type created during deserialization.</value>
public Type CreatedType
{
get => _createdType;
set
{
ValidationUtils.ArgumentNotNull(value, nameof(value));
_createdType = value;
IsSealed = _createdType.IsSealed();
IsInstantiable = !(_createdType.IsInterface() || _createdType.IsAbstract());
}
}
/// <summary>
/// Gets or sets whether this type contract is serialized as a reference.
/// </summary>
/// <value>Whether this type contract is serialized as a reference.</value>
public bool? IsReference { get; set; }
/// <summary>
/// Gets or sets the default <see cref="JsonConverter" /> for this contract.
/// </summary>
/// <value>The converter.</value>
public JsonConverter? Converter { get; set; }
/// <summary>
/// Gets the internally resolved <see cref="JsonConverter"/> for the contract's type.
/// This converter is used as a fallback converter when no other converter is resolved.
/// Setting <see cref="Converter"/> will always override this converter.
/// </summary>
public JsonConverter? InternalConverter { get; internal set; }
/// <summary>
/// Gets or sets all methods called immediately after deserialization of the object.
/// </summary>
/// <value>The methods called immediately after deserialization of the object.</value>
public IList<SerializationCallback> OnDeserializedCallbacks
{
get
{
if (_onDeserializedCallbacks == null)
{
_onDeserializedCallbacks = new List<SerializationCallback>();
}
return _onDeserializedCallbacks;
}
}
/// <summary>
/// Gets or sets all methods called during deserialization of the object.
/// </summary>
/// <value>The methods called during deserialization of the object.</value>
public IList<SerializationCallback> OnDeserializingCallbacks
{
get
{
if (_onDeserializingCallbacks == null)
{
_onDeserializingCallbacks = new List<SerializationCallback>();
}
return _onDeserializingCallbacks;
}
}
/// <summary>
/// Gets or sets all methods called after serialization of the object graph.
/// </summary>
/// <value>The methods called after serialization of the object graph.</value>
public IList<SerializationCallback> OnSerializedCallbacks
{
get
{
if (_onSerializedCallbacks == null)
{
_onSerializedCallbacks = new List<SerializationCallback>();
}
return _onSerializedCallbacks;
}
}
/// <summary>
/// Gets or sets all methods called before serialization of the object.
/// </summary>
/// <value>The methods called before serialization of the object.</value>
public IList<SerializationCallback> OnSerializingCallbacks
{
get
{
if (_onSerializingCallbacks == null)
{
_onSerializingCallbacks = new List<SerializationCallback>();
}
return _onSerializingCallbacks;
}
}
/// <summary>
/// Gets or sets all method called when an error is thrown during the serialization of the object.
/// </summary>
/// <value>The methods called when an error is thrown during the serialization of the object.</value>
public IList<SerializationErrorCallback> OnErrorCallbacks
{
get
{
if (_onErrorCallbacks == null)
{
_onErrorCallbacks = new List<SerializationErrorCallback>();
}
return _onErrorCallbacks;
}
}
/// <summary>
/// Gets or sets the default creator method used to create the object.
/// </summary>
/// <value>The default creator method used to create the object.</value>
public Func<object>? DefaultCreator { get; set; }
/// <summary>
/// Gets or sets a value indicating whether the default creator is non-public.
/// </summary>
/// <value><c>true</c> if the default object creator is non-public; otherwise, <c>false</c>.</value>
public bool DefaultCreatorNonPublic { get; set; }
internal JsonContract(Type underlyingType)
{
ValidationUtils.ArgumentNotNull(underlyingType, nameof(underlyingType));
UnderlyingType = underlyingType;
// resolve ByRef types
// typically comes from in and ref parameters on methods/ctors
underlyingType = ReflectionUtils.EnsureNotByRefType(underlyingType);
IsNullable = ReflectionUtils.IsNullable(underlyingType);
NonNullableUnderlyingType = (IsNullable && ReflectionUtils.IsNullableType(underlyingType)) ? Nullable.GetUnderlyingType(underlyingType) : underlyingType;
_createdType = CreatedType = NonNullableUnderlyingType;
IsConvertable = ConvertUtils.IsConvertible(NonNullableUnderlyingType);
IsEnum = NonNullableUnderlyingType.IsEnum();
InternalReadType = ReadType.Read;
}
internal void InvokeOnSerializing(object o, StreamingContext context)
{
if (_onSerializingCallbacks != null)
{
foreach (SerializationCallback callback in _onSerializingCallbacks)
{
callback(o, context);
}
}
}
internal void InvokeOnSerialized(object o, StreamingContext context)
{
if (_onSerializedCallbacks != null)
{
foreach (SerializationCallback callback in _onSerializedCallbacks)
{
callback(o, context);
}
}
}
internal void InvokeOnDeserializing(object o, StreamingContext context)
{
if (_onDeserializingCallbacks != null)
{
foreach (SerializationCallback callback in _onDeserializingCallbacks)
{
callback(o, context);
}
}
}
internal void InvokeOnDeserialized(object o, StreamingContext context)
{
if (_onDeserializedCallbacks != null)
{
foreach (SerializationCallback callback in _onDeserializedCallbacks)
{
callback(o, context);
}
}
}
internal void InvokeOnError(object o, StreamingContext context, ErrorContext errorContext)
{
if (_onErrorCallbacks != null)
{
foreach (SerializationErrorCallback callback in _onErrorCallbacks)
{
callback(o, context, errorContext);
}
}
}
internal static SerializationCallback CreateSerializationCallback(MethodInfo callbackMethodInfo)
{
return (o, context) => callbackMethodInfo.Invoke(o, new object[] { context });
}
internal static SerializationErrorCallback CreateSerializationErrorCallback(MethodInfo callbackMethodInfo)
{
return (o, context, econtext) => callbackMethodInfo.Invoke(o, new object[] { context, econtext });
}
}
}