pos/is4c-nf/scale-drivers/drivers/NewMagellan/Newtonsoft.Json/Serialization/JsonDictionaryContract.cs
#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.Collections.ObjectModel;
using System.Reflection;
using Newtonsoft.Json.Utilities;
using System.Collections;
#if NET20
using Newtonsoft.Json.Utilities.LinqBridge;
#endif
namespace Newtonsoft.Json.Serialization
{
/// <summary>
/// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
/// </summary>
public class JsonDictionaryContract : JsonContainerContract
{
/// <summary>
/// Gets or sets the property name resolver.
/// </summary>
/// <value>The property name resolver.</value>
public Func<string, string> PropertyNameResolver { get; set; }
/// <summary>
/// Gets the <see cref="Type"/> of the dictionary keys.
/// </summary>
/// <value>The <see cref="Type"/> of the dictionary keys.</value>
public Type DictionaryKeyType { get; private set; }
/// <summary>
/// Gets the <see cref="Type"/> of the dictionary values.
/// </summary>
/// <value>The <see cref="Type"/> of the dictionary values.</value>
public Type DictionaryValueType { get; private set; }
internal JsonContract KeyContract { get; set; }
private readonly Type _genericCollectionDefinitionType;
private Type _genericWrapperType;
private ObjectConstructor<object> _genericWrapperCreator;
private Func<object> _genericTemporaryDictionaryCreator;
internal bool ShouldCreateWrapper { get; private set; }
private readonly ConstructorInfo _parametrizedConstructor;
private ObjectConstructor<object> _parametrizedCreator;
internal ObjectConstructor<object> ParametrizedCreator
{
get
{
if (_parametrizedCreator == null)
_parametrizedCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateParametrizedConstructor(_parametrizedConstructor);
return _parametrizedCreator;
}
}
internal bool HasParametrizedCreator
{
get { return _parametrizedCreator != null || _parametrizedConstructor != null; }
}
/// <summary>
/// Initializes a new instance of the <see cref="JsonDictionaryContract"/> class.
/// </summary>
/// <param name="underlyingType">The underlying type for the contract.</param>
public JsonDictionaryContract(Type underlyingType)
: base(underlyingType)
{
ContractType = JsonContractType.Dictionary;
Type keyType;
Type valueType;
if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IDictionary<,>), out _genericCollectionDefinitionType))
{
keyType = _genericCollectionDefinitionType.GetGenericArguments()[0];
valueType = _genericCollectionDefinitionType.GetGenericArguments()[1];
if (ReflectionUtils.IsGenericDefinition(UnderlyingType, typeof(IDictionary<,>)))
CreatedType = typeof(Dictionary<,>).MakeGenericType(keyType, valueType);
#if !(NET40 || NET35 || NET20 || PORTABLE40)
IsReadOnlyOrFixedSize = ReflectionUtils.InheritsGenericDefinition(underlyingType, typeof(ReadOnlyDictionary<,>));
#endif
}
#if !(NET40 || NET35 || NET20 || PORTABLE40)
else if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IReadOnlyDictionary<,>), out _genericCollectionDefinitionType))
{
keyType = _genericCollectionDefinitionType.GetGenericArguments()[0];
valueType = _genericCollectionDefinitionType.GetGenericArguments()[1];
if (ReflectionUtils.IsGenericDefinition(UnderlyingType, typeof(IReadOnlyDictionary<,>)))
CreatedType = typeof(ReadOnlyDictionary<,>).MakeGenericType(keyType, valueType);
IsReadOnlyOrFixedSize = true;
}
#endif
else
{
ReflectionUtils.GetDictionaryKeyValueTypes(UnderlyingType, out keyType, out valueType);
if (UnderlyingType == typeof(IDictionary))
CreatedType = typeof(Dictionary<object, object>);
}
if (keyType != null && valueType != null)
{
_parametrizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(CreatedType, typeof(KeyValuePair<,>).MakeGenericType(keyType, valueType));
#if !(NET35 || NET20 || NETFX_CORE)
if (!HasParametrizedCreator && underlyingType.Name == FSharpUtils.FSharpMapTypeName)
{
FSharpUtils.EnsureInitialized(underlyingType.Assembly());
_parametrizedCreator = FSharpUtils.CreateMap(keyType, valueType);
}
#endif
}
ShouldCreateWrapper = !typeof(IDictionary).IsAssignableFrom(CreatedType);
DictionaryKeyType = keyType;
DictionaryValueType = valueType;
#if (NET20 || NET35)
if (DictionaryValueType != null && ReflectionUtils.IsNullableType(DictionaryValueType))
{
Type tempDictioanryType;
// bug in .NET 2.0 & 3.5 that Dictionary<TKey, Nullable<TValue>> throws an error when adding null via IDictionary[key] = object
// wrapper will handle calling Add(T) instead
if (ReflectionUtils.InheritsGenericDefinition(CreatedType, typeof(Dictionary<,>), out tempDictioanryType))
{
ShouldCreateWrapper = true;
}
}
#endif
#if !(NET20 || NET35 || NET40 || PORTABLE40)
Type immutableCreatedType;
ObjectConstructor<object> immutableParameterizedCreator;
if (ImmutableCollectionsUtils.TryBuildImmutableForDictionaryContract(underlyingType, DictionaryKeyType, DictionaryValueType, out immutableCreatedType, out immutableParameterizedCreator))
{
CreatedType = immutableCreatedType;
_parametrizedCreator = immutableParameterizedCreator;
IsReadOnlyOrFixedSize = true;
}
#endif
}
internal IWrappedDictionary CreateWrapper(object dictionary)
{
if (_genericWrapperCreator == null)
{
_genericWrapperType = typeof(DictionaryWrapper<,>).MakeGenericType(DictionaryKeyType, DictionaryValueType);
ConstructorInfo genericWrapperConstructor = _genericWrapperType.GetConstructor(new[] { _genericCollectionDefinitionType });
_genericWrapperCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateParametrizedConstructor(genericWrapperConstructor);
}
return (IWrappedDictionary)_genericWrapperCreator(dictionary);
}
internal IDictionary CreateTemporaryDictionary()
{
if (_genericTemporaryDictionaryCreator == null)
{
Type temporaryDictionaryType = typeof(Dictionary<,>).MakeGenericType(DictionaryKeyType, DictionaryValueType);
_genericTemporaryDictionaryCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateDefaultConstructor<object>(temporaryDictionaryType);
}
return (IDictionary)_genericTemporaryDictionaryCreator();
}
}
}