internal static TypeErrorsBuilder CheckRequiresReferenceHandling(
this TypeErrorsBuilder typeErrors,
Type type,
MemberSettings settings,
Func<Type, bool> requiresReferenceHandling)
{
if (settings.ReferenceHandling == ReferenceHandling.Throw)
{
if (typeof(IEnumerable).IsAssignableFrom(type))
{
if (type.Implements(typeof(IDictionary<,>)))
{
var arguments = type.GetGenericArguments();
if (arguments.Length != 2 ||
requiresReferenceHandling(arguments[0]) ||
requiresReferenceHandling(arguments[1]))
{
typeErrors = typeErrors.CreateIfNull(type)
.Add(RequiresReferenceHandling.Enumerable);
}
}
else if (requiresReferenceHandling(type.GetItemType()))
{
typeErrors = typeErrors.CreateIfNull(type)
.Add(RequiresReferenceHandling.Enumerable);
}
}
else if (type.IsKeyValuePair())
{
var arguments = type.GetGenericArguments();
if (requiresReferenceHandling(arguments[0]) || requiresReferenceHandling(arguments[1]))
{
typeErrors = typeErrors.CreateIfNull(type)
.Add(RequiresReferenceHandling.ComplexType);
}
}
else if (requiresReferenceHandling(type))
{
typeErrors = typeErrors.CreateIfNull(type)
.Add(RequiresReferenceHandling.ComplexType);
}
}
return typeErrors;
}
internal static TypeErrorsBuilder CheckIndexers(this TypeErrorsBuilder typeErrors, Type type, MemberSettings settings)
{
var propertiesSettings = settings as PropertiesSettings;
var propertyInfos = type.GetProperties(settings.BindingFlags);
foreach (var propertyInfo in propertyInfos)
{
if (propertyInfo.GetIndexParameters().Length == 0)
{
continue;
}
if (propertiesSettings?.IsIgnoringProperty(propertyInfo) == true)
{
continue;
}
if (settings.IsIgnoringDeclaringType(propertyInfo.DeclaringType))
{
continue;
}
typeErrors = typeErrors.CreateIfNull(type)
.Add(UnsupportedIndexer.GetOrCreate(propertyInfo));
}
return typeErrors;
}
internal static TypeErrorsBuilder CheckNotifies(this TypeErrorsBuilder typeErrors, Type type, MemberSettings settings)
{
if (settings.IsImmutable(type))
{
return typeErrors;
}
if (type.IsValueType)
{
if (typeof(INotifyCollectionChanged).IsAssignableFrom(type) ||
typeof(INotifyPropertyChanged).IsAssignableFrom(type))
{
return typeErrors.CreateIfNull(type)
.Add(StructMustNotNotifyError.GetOrCreate(type));
}
return typeErrors;
}
if (typeof(IEnumerable).IsAssignableFrom(type))
{
if (!typeof(INotifyCollectionChanged).IsAssignableFrom(type))
{
return typeErrors.CreateIfNull(type)
.Add(CollectionMustNotifyError.GetOrCreate(type));
}
}
else if (!typeof(INotifyPropertyChanged).IsAssignableFrom(type))
{
if (settings.IsIgnoringDeclaringType(type))
{
return typeErrors;
}
return typeErrors.CreateIfNull(type)
.Add(TypeMustNotifyError.GetOrCreate(type));
}
return typeErrors;
}