using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Reflection;
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using DPumpHydr.WinFrmUI.WenSkin.Json.Utilities;
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namespace DPumpHydr.WinFrmUI.WenSkin.Json.Serialization
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{
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/// <summary>
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/// Contract details for a <see cref="T:System.Type" /> used by the <see cref="T:Newtonsoft.Json.JsonSerializer" />.
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/// </summary>
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public class JsonDictionaryContract : JsonContainerContract
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{
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private readonly Type _genericCollectionDefinitionType;
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private Type _genericWrapperType;
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private ObjectConstructor<object> _genericWrapperCreator;
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private Func<object> _genericTemporaryDictionaryCreator;
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private readonly ConstructorInfo _parameterizedConstructor;
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private ObjectConstructor<object> _overrideCreator;
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private ObjectConstructor<object> _parameterizedCreator;
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/// <summary>
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/// Gets or sets the property name resolver.
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/// </summary>
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/// <value>The property name resolver.</value>
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[Obsolete("PropertyNameResolver is obsolete. Use DictionaryKeyResolver instead.")]
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public Func<string, string> PropertyNameResolver
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{
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get
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{
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return DictionaryKeyResolver;
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}
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set
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{
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DictionaryKeyResolver = value;
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}
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}
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/// <summary>
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/// Gets or sets the dictionary key resolver.
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/// </summary>
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/// <value>The dictionary key resolver.</value>
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public Func<string, string> DictionaryKeyResolver { get; set; }
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/// <summary>
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/// Gets the <see cref="T:System.Type" /> of the dictionary keys.
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/// </summary>
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/// <value>The <see cref="T:System.Type" /> of the dictionary keys.</value>
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public Type DictionaryKeyType { get; private set; }
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/// <summary>
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/// Gets the <see cref="T:System.Type" /> of the dictionary values.
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/// </summary>
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/// <value>The <see cref="T:System.Type" /> of the dictionary values.</value>
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public Type DictionaryValueType { get; private set; }
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internal JsonContract KeyContract { get; set; }
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internal bool ShouldCreateWrapper { get; private set; }
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internal ObjectConstructor<object> ParameterizedCreator
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{
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get
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{
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if (_parameterizedCreator == null)
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{
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_parameterizedCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateParameterizedConstructor(_parameterizedConstructor);
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}
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return _parameterizedCreator;
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}
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}
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/// <summary>
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/// Gets or sets the function used to create the object. When set this function will override <see cref="P:Newtonsoft.Json.Serialization.JsonContract.DefaultCreator" />.
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/// </summary>
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/// <value>The function used to create the object.</value>
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public ObjectConstructor<object> OverrideCreator
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{
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get
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{
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return _overrideCreator;
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}
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set
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{
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_overrideCreator = value;
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}
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}
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/// <summary>
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/// Gets a value indicating whether the creator has a parameter with the dictionary values.
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/// </summary>
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/// <value><c>true</c> if the creator has a parameter with the dictionary values; otherwise, <c>false</c>.</value>
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public bool HasParameterizedCreator { get; set; }
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internal bool HasParameterizedCreatorInternal
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{
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get
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{
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if (!HasParameterizedCreator && _parameterizedCreator == null)
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{
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return _parameterizedConstructor != null;
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}
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return true;
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}
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="T:Newtonsoft.Json.Serialization.JsonDictionaryContract" /> 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 JsonDictionaryContract(Type underlyingType)
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: base(underlyingType)
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{
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ContractType = JsonContractType.Dictionary;
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Type keyType;
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Type valueType;
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if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IDictionary<, >), out _genericCollectionDefinitionType))
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{
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keyType = _genericCollectionDefinitionType.GetGenericArguments()[0];
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valueType = _genericCollectionDefinitionType.GetGenericArguments()[1];
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if (ReflectionUtils.IsGenericDefinition(base.UnderlyingType, typeof(IDictionary<, >)))
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{
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base.CreatedType = typeof(Dictionary<, >).MakeGenericType(keyType, valueType);
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}
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IsReadOnlyOrFixedSize = ReflectionUtils.InheritsGenericDefinition(underlyingType, typeof(ReadOnlyDictionary<, >));
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}
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else if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IReadOnlyDictionary<, >), out _genericCollectionDefinitionType))
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{
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keyType = _genericCollectionDefinitionType.GetGenericArguments()[0];
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valueType = _genericCollectionDefinitionType.GetGenericArguments()[1];
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if (ReflectionUtils.IsGenericDefinition(base.UnderlyingType, typeof(IReadOnlyDictionary<, >)))
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{
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base.CreatedType = typeof(ReadOnlyDictionary<, >).MakeGenericType(keyType, valueType);
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}
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IsReadOnlyOrFixedSize = true;
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}
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else
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{
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ReflectionUtils.GetDictionaryKeyValueTypes(base.UnderlyingType, out keyType, out valueType);
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if (base.UnderlyingType == typeof(IDictionary))
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{
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base.CreatedType = typeof(Dictionary<object, object>);
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}
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}
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if (keyType != null && valueType != null)
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{
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_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(base.CreatedType, typeof(KeyValuePair<, >).MakeGenericType(keyType, valueType), typeof(IDictionary<, >).MakeGenericType(keyType, valueType));
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if (!HasParameterizedCreatorInternal && underlyingType.Name == "FSharpMap`2")
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{
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FSharpUtils.EnsureInitialized(underlyingType.Assembly());
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_parameterizedCreator = FSharpUtils.CreateMap(keyType, valueType);
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}
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}
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ShouldCreateWrapper = !typeof(IDictionary).IsAssignableFrom(base.CreatedType);
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DictionaryKeyType = keyType;
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DictionaryValueType = valueType;
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if (ImmutableCollectionsUtils.TryBuildImmutableForDictionaryContract(underlyingType, DictionaryKeyType, DictionaryValueType, out var createdType, out var parameterizedCreator))
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{
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base.CreatedType = createdType;
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_parameterizedCreator = parameterizedCreator;
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IsReadOnlyOrFixedSize = true;
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}
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}
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internal IWrappedDictionary CreateWrapper(object dictionary)
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{
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if (_genericWrapperCreator == null)
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{
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_genericWrapperType = typeof(DictionaryWrapper<, >).MakeGenericType(DictionaryKeyType, DictionaryValueType);
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ConstructorInfo constructor = _genericWrapperType.GetConstructor(new Type[1] { _genericCollectionDefinitionType });
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_genericWrapperCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateParameterizedConstructor(constructor);
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}
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return (IWrappedDictionary)_genericWrapperCreator(dictionary);
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}
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internal IDictionary CreateTemporaryDictionary()
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{
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if (_genericTemporaryDictionaryCreator == null)
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{
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Type type = typeof(Dictionary<, >).MakeGenericType(DictionaryKeyType ?? typeof(object), DictionaryValueType ?? typeof(object));
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_genericTemporaryDictionaryCreator = JsonTypeReflector.ReflectionDelegateFactory.CreateDefaultConstructor<object>(type);
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}
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return (IDictionary)_genericTemporaryDictionaryCreator();
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}
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}
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}
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