/// <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)
{
_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(CreatedType, typeof(KeyValuePair<,>).MakeGenericType(keyType, valueType));
#if !(NET35 || NET20)
if (!HasParameterizedCreatorInternal && underlyingType.Name == FSharpUtils.FSharpMapTypeName)
{
FSharpUtils.EnsureInitialized(underlyingType.Assembly());
_parameterizedCreator = 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)
Type immutableCreatedType;
ObjectConstructor<object> immutableParameterizedCreator;
if (ImmutableCollectionsUtils.TryBuildImmutableForDictionaryContract(underlyingType, DictionaryKeyType, DictionaryValueType, out immutableCreatedType, out immutableParameterizedCreator))
{
CreatedType = immutableCreatedType;
_parameterizedCreator = immutableParameterizedCreator;
IsReadOnlyOrFixedSize = true;
}
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="JsonArrayContract"/> class.
/// </summary>
/// <param name="underlyingType">The underlying type for the contract.</param>
public JsonArrayContract(Type underlyingType)
: base(underlyingType)
{
ContractType = JsonContractType.Array;
IsArray = CreatedType.IsArray;
bool canDeserialize;
Type tempCollectionType;
if (IsArray)
{
CollectionItemType = ReflectionUtils.GetCollectionItemType(UnderlyingType);
IsReadOnlyOrFixedSize = true;
_genericCollectionDefinitionType = typeof(List<>).MakeGenericType(CollectionItemType);
canDeserialize = true;
IsMultidimensionalArray = (IsArray && UnderlyingType.GetArrayRank() > 1);
}
else if (typeof(IList).IsAssignableFrom(underlyingType))
{
if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(ICollection<>), out _genericCollectionDefinitionType))
{
CollectionItemType = _genericCollectionDefinitionType.GetGenericArguments()[0];
}
else
{
CollectionItemType = ReflectionUtils.GetCollectionItemType(underlyingType);
}
if (underlyingType == typeof(IList))
{
CreatedType = typeof(List<object>);
}
if (CollectionItemType != null)
{
_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(underlyingType, CollectionItemType);
}
IsReadOnlyOrFixedSize = ReflectionUtils.InheritsGenericDefinition(underlyingType, typeof(ReadOnlyCollection<>));
canDeserialize = true;
}
else if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(ICollection<>), out _genericCollectionDefinitionType))
{
CollectionItemType = _genericCollectionDefinitionType.GetGenericArguments()[0];
if (ReflectionUtils.IsGenericDefinition(underlyingType, typeof(ICollection<>))
|| ReflectionUtils.IsGenericDefinition(underlyingType, typeof(IList<>)))
{
CreatedType = typeof(List<>).MakeGenericType(CollectionItemType);
}
#if !(NET20 || NET35 || PORTABLE40)
if (ReflectionUtils.IsGenericDefinition(underlyingType, typeof(ISet<>)))
{
CreatedType = typeof(HashSet<>).MakeGenericType(CollectionItemType);
}
#endif
_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(underlyingType, CollectionItemType);
canDeserialize = true;
ShouldCreateWrapper = true;
}
#if !(NET40 || NET35 || NET20 || PORTABLE40)
else if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IReadOnlyCollection<>), out tempCollectionType))
{
CollectionItemType = tempCollectionType.GetGenericArguments()[0];
if (ReflectionUtils.IsGenericDefinition(underlyingType, typeof(IReadOnlyCollection<>))
|| ReflectionUtils.IsGenericDefinition(underlyingType, typeof(IReadOnlyList<>)))
{
CreatedType = typeof(ReadOnlyCollection<>).MakeGenericType(CollectionItemType);
}
_genericCollectionDefinitionType = typeof(List<>).MakeGenericType(CollectionItemType);
_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(CreatedType, CollectionItemType);
IsReadOnlyOrFixedSize = true;
canDeserialize = HasParameterizedCreatorInternal;
}
#endif
else if (ReflectionUtils.ImplementsGenericDefinition(underlyingType, typeof(IEnumerable<>), out tempCollectionType))
{
CollectionItemType = tempCollectionType.GetGenericArguments()[0];
if (ReflectionUtils.IsGenericDefinition(UnderlyingType, typeof(IEnumerable<>)))
{
CreatedType = typeof(List<>).MakeGenericType(CollectionItemType);
}
_parameterizedConstructor = CollectionUtils.ResolveEnumerableCollectionConstructor(underlyingType, CollectionItemType);
#if !(NET35 || NET20)
if (!HasParameterizedCreatorInternal && underlyingType.Name == FSharpUtils.FSharpListTypeName)
{
FSharpUtils.EnsureInitialized(underlyingType.Assembly());
_parameterizedCreator = FSharpUtils.CreateSeq(CollectionItemType);
}
#endif
if (underlyingType.IsGenericType() && underlyingType.GetGenericTypeDefinition() == typeof(IEnumerable<>))
{
_genericCollectionDefinitionType = tempCollectionType;
IsReadOnlyOrFixedSize = false;
ShouldCreateWrapper = false;
canDeserialize = true;
}
else
{
_genericCollectionDefinitionType = typeof(List<>).MakeGenericType(CollectionItemType);
IsReadOnlyOrFixedSize = true;
ShouldCreateWrapper = true;
canDeserialize = HasParameterizedCreatorInternal;
}
}
else
{
// types that implement IEnumerable and nothing else
canDeserialize = false;
ShouldCreateWrapper = true;
}
CanDeserialize = canDeserialize;
#if (NET20 || NET35)
if (CollectionItemType != null && ReflectionUtils.IsNullableType(CollectionItemType))
{
// bug in .NET 2.0 & 3.5 that List<Nullable<T>> throws an error when adding null via IList.Add(object)
// wrapper will handle calling Add(T) instead
if (ReflectionUtils.InheritsGenericDefinition(CreatedType, typeof(List<>), out tempCollectionType)
|| (IsArray && !IsMultidimensionalArray))
{
ShouldCreateWrapper = true;
}
}
#endif
#if !(NET20 || NET35 || NET40)
Type immutableCreatedType;
ObjectConstructor<object> immutableParameterizedCreator;
if (ImmutableCollectionsUtils.TryBuildImmutableForArrayContract(underlyingType, CollectionItemType, out immutableCreatedType, out immutableParameterizedCreator))
{
CreatedType = immutableCreatedType;
_parameterizedCreator = immutableParameterizedCreator;
IsReadOnlyOrFixedSize = true;
CanDeserialize = true;
}
#endif
}
