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This commit is contained in:
James Newton-King
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#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using Newtonsoft.Json.Utilities;
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using System.Collections;
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#if NET20
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using Newtonsoft.Json.Utilities.LinqBridge;
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#else
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using System.Linq;
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#endif
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namespace Newtonsoft.Json.Serialization
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{
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/// <summary>
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/// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
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/// </summary>
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public class JsonArrayContract : JsonContract
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{
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/// <summary>
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/// Gets the <see cref="Type"/> of the collection items.
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/// </summary>
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/// <value>The <see cref="Type"/> of the collection items.</value>
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public Type CollectionItemType { get; private set; }
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internal JsonContract CollectionItemContract { get; set; }
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private readonly bool _isCollectionItemTypeNullableType;
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private readonly Type _genericCollectionDefinitionType;
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private Type _genericWrapperType;
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private MethodCall<object, object> _genericWrapperCreator;
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/// <summary>
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/// Initializes a new instance of the <see cref="JsonArrayContract"/> class.
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/// </summary>
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/// <param name="underlyingType">The underlying type for the contract.</param>
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public JsonArrayContract(Type underlyingType)
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: base(underlyingType)
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{
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ContractType = JsonContractType.Array;
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if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(ICollection<>), out _genericCollectionDefinitionType))
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{
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CollectionItemType = _genericCollectionDefinitionType.GetGenericArguments()[0];
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}
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else if (underlyingType.IsGenericType() && underlyingType.GetGenericTypeDefinition() == typeof(IEnumerable<>))
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{
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_genericCollectionDefinitionType = typeof (IEnumerable<>);
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CollectionItemType = underlyingType.GetGenericArguments()[0];
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}
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else
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{
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CollectionItemType = ReflectionUtils.GetCollectionItemType(UnderlyingType);
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}
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if (CollectionItemType != null)
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_isCollectionItemTypeNullableType = ReflectionUtils.IsNullableType(CollectionItemType);
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if (IsTypeGenericCollectionInterface(UnderlyingType))
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{
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CreatedType = ReflectionUtils.MakeGenericType(typeof(List<>), CollectionItemType);
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}
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}
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internal IWrappedCollection CreateWrapper(object list)
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{
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if ((list is IList && (CollectionItemType == null || !_isCollectionItemTypeNullableType))
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|| UnderlyingType.IsArray)
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return new CollectionWrapper<object>((IList)list);
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if (_genericCollectionDefinitionType != null)
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{
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EnsureGenericWrapperCreator();
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return (IWrappedCollection) _genericWrapperCreator(null, list);
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}
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else
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{
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IList values = ((IEnumerable) list).Cast<object>().ToList();
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if (CollectionItemType != null)
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{
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Array array = Array.CreateInstance(CollectionItemType, values.Count);
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for (int i = 0; i < values.Count; i++)
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{
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array.SetValue(values[i], i);
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}
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values = array;
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}
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return new CollectionWrapper<object>(values);
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}
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}
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private void EnsureGenericWrapperCreator()
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{
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if (_genericWrapperCreator == null)
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{
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_genericWrapperType = ReflectionUtils.MakeGenericType(typeof (CollectionWrapper<>), CollectionItemType);
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Type constructorArgument;
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if (ReflectionUtils.InheritsGenericDefinition(_genericCollectionDefinitionType, typeof(List<>))
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|| _genericCollectionDefinitionType.GetGenericTypeDefinition() == typeof(IEnumerable<>))
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constructorArgument = ReflectionUtils.MakeGenericType(typeof(ICollection<>), CollectionItemType);
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else
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constructorArgument = _genericCollectionDefinitionType;
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ConstructorInfo genericWrapperConstructor = _genericWrapperType.GetConstructor(new[] { constructorArgument });
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_genericWrapperCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateMethodCall<object>(genericWrapperConstructor);
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}
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}
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private bool IsTypeGenericCollectionInterface(Type type)
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{
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if (!type.IsGenericType())
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return false;
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Type genericDefinition = type.GetGenericTypeDefinition();
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return (genericDefinition == typeof(IList<>)
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|| genericDefinition == typeof(ICollection<>)
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|| genericDefinition == typeof(IEnumerable<>));
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}
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}
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#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using Newtonsoft.Json.Utilities;
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using System.Collections;
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#if NET20
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using Newtonsoft.Json.Utilities.LinqBridge;
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#else
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using System.Linq;
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#endif
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namespace Newtonsoft.Json.Serialization
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{
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/// <summary>
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/// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
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/// </summary>
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public class JsonArrayContract : JsonContract
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{
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/// <summary>
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/// Gets the <see cref="Type"/> of the collection items.
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/// </summary>
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/// <value>The <see cref="Type"/> of the collection items.</value>
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public Type CollectionItemType { get; private set; }
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internal JsonContract CollectionItemContract { get; set; }
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private readonly bool _isCollectionItemTypeNullableType;
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private readonly Type _genericCollectionDefinitionType;
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private Type _genericWrapperType;
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private MethodCall<object, object> _genericWrapperCreator;
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/// <summary>
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/// Initializes a new instance of the <see cref="JsonArrayContract"/> class.
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/// </summary>
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/// <param name="underlyingType">The underlying type for the contract.</param>
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public JsonArrayContract(Type underlyingType)
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: base(underlyingType)
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{
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ContractType = JsonContractType.Array;
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if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(ICollection<>), out _genericCollectionDefinitionType))
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{
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CollectionItemType = _genericCollectionDefinitionType.GetGenericArguments()[0];
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}
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else if (underlyingType.IsGenericType() && underlyingType.GetGenericTypeDefinition() == typeof(IEnumerable<>))
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{
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_genericCollectionDefinitionType = typeof (IEnumerable<>);
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CollectionItemType = underlyingType.GetGenericArguments()[0];
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}
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else
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{
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CollectionItemType = ReflectionUtils.GetCollectionItemType(UnderlyingType);
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}
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if (CollectionItemType != null)
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_isCollectionItemTypeNullableType = ReflectionUtils.IsNullableType(CollectionItemType);
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if (IsTypeGenericCollectionInterface(UnderlyingType))
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{
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CreatedType = ReflectionUtils.MakeGenericType(typeof(List<>), CollectionItemType);
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}
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}
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internal IWrappedCollection CreateWrapper(object list)
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{
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if ((list is IList && (CollectionItemType == null || !_isCollectionItemTypeNullableType))
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|| UnderlyingType.IsArray)
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return new CollectionWrapper<object>((IList)list);
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if (_genericCollectionDefinitionType != null)
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{
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EnsureGenericWrapperCreator();
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return (IWrappedCollection) _genericWrapperCreator(null, list);
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}
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else
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{
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IList values = ((IEnumerable) list).Cast<object>().ToList();
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if (CollectionItemType != null)
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{
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Array array = Array.CreateInstance(CollectionItemType, values.Count);
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for (int i = 0; i < values.Count; i++)
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{
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array.SetValue(values[i], i);
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}
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values = array;
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}
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return new CollectionWrapper<object>(values);
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}
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}
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private void EnsureGenericWrapperCreator()
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{
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if (_genericWrapperCreator == null)
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{
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_genericWrapperType = ReflectionUtils.MakeGenericType(typeof (CollectionWrapper<>), CollectionItemType);
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Type constructorArgument;
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if (ReflectionUtils.InheritsGenericDefinition(_genericCollectionDefinitionType, typeof(List<>))
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|| _genericCollectionDefinitionType.GetGenericTypeDefinition() == typeof(IEnumerable<>))
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constructorArgument = ReflectionUtils.MakeGenericType(typeof(ICollection<>), CollectionItemType);
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else
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constructorArgument = _genericCollectionDefinitionType;
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ConstructorInfo genericWrapperConstructor = _genericWrapperType.GetConstructor(new[] { constructorArgument });
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_genericWrapperCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateMethodCall<object>(genericWrapperConstructor);
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}
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}
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private bool IsTypeGenericCollectionInterface(Type type)
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{
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if (!type.IsGenericType())
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return false;
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Type genericDefinition = type.GetGenericTypeDefinition();
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return (genericDefinition == typeof(IList<>)
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|| genericDefinition == typeof(ICollection<>)
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|| genericDefinition == typeof(IEnumerable<>));
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}
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}
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}
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Reference in New Issue
Block a user