GetProperties（）返回接口继承层次结构的所有属性

我已经将@Marc Gravel的示例代码调整为一个有用的扩展方法，该方法封装了类和接口。我还首先添加了接口属性，我认为这是预期的行为。

public static PropertyInfo[] GetPublicProperties(this Type type){    if (type.IsInterface)    {        var propertyInfos = new List<PropertyInfo>();        var considered = new List<Type>();        var queue = new Queue<Type>();        considered.Add(type);        queue.Enqueue(type);        while (queue.Count > 0)        { var subType = queue.Dequeue(); foreach (var subInterface in subType.GetInterfaces()) {     if (considered.Contains(subInterface)) continue;     considered.Add(subInterface);     queue.Enqueue(subInterface); } var typeProperties = subType.GetProperties(     BindingFlags.FlattenHierarchy      | BindingFlags.Public      | BindingFlags.Instance); var newPropertyInfos = typeProperties     .Where(x => !propertyInfos.Contains(x)); propertyInfos.InsertRange(0, newPropertyInfos);        }        return propertyInfos.ToArray();    }    return type.GetProperties(BindingFlags.FlattenHierarchy        | BindingFlags.Public | BindingFlags.Instance);}