Question

使用以下函数为通用列表的每个项创建相似度：

private static IEnumerable<Likeness<T, T>> CreateLikenessOfListItems<T>(
    IEnumerable<T> list) 
    where T : class
{
    var likeness = from item in list
                   select item.AsSource()
                              .OfLikeness<T>();
    return likeness;
}

...然后可以比较两个列表：

private static void AssertExpectedAndActualListsHaveSameElements<T>(
    IEnumerable<T> actual,
    IEnumerable<Likeness<T, T>> expected)
    where T : class
{
    IEnumerable<Object> expectedAsObjects = expected;
    IEnumerable<Object> actualAsObjects = actual;

    bool sequencesEqual = expectedAsObjects.SequenceEqual(actualAsObjects);
    Assert.IsTrue(sequencesEqual, "Expected and actual lists elements differ.");
}

问题：是否可以动态地为未知数量的属性添加Witout（）？像WitoutAll（）这样的东西会：

private static IEnumerable<Likeness<T, T>> CreateLikenessOfListItemsWithou<T, TProperty>(
    IEnumerable<T> list, 
    IEnumerable<Expression<Func<T, TProperty>>> propertyPickers)
    where T : class
    where TProperty : class
{

    var likeness = from item in list
                   select item.AsSource()
                              .OfLikeness<T>()
                              .WithoutAll(propertyPickers); // <= for all pickers
    return likeness;
}

动态地为未知数量的属性添加无相似性

0 个答案: