public virtual void AddSubTag(MemoTag sub)
{
if (IsAscendant(sub))
{
return;
}
_subTags.Add(sub);
}
public virtual void RemoveSubTag(MemoTag sub)
{
_subTags.Remove(sub);
}
/// <summary>
/// thisがotherの子孫であるかどうかを返す．自分自身の場合もtrue．
/// </summary>
public virtual bool IsDescendant(MemoTag other)
{
var ite = new Iterator <MemoTag>(this, tag => new[] { tag.SuperTag, });
return(ite.Contains(other));
}
/// <summary>
/// thisがotherの祖先であるかどうかを返す．自分自身の場合もtrue．
/// </summary>
public virtual bool IsAscendant(MemoTag other)
{
var ite = new Iterator <MemoTag>(this, tag => tag.SubTags);
return(ite.Contains(other));
}
public virtual void RemoveTag(MemoTag tag)
{
_tags.Remove(tag);
}
public virtual void AddTag(MemoTag tag)
{
_tags.Add(tag);
}
