/// <summary>
/// Add a tag to the database using <paramref name="tag"/> as the root tag
/// </summary>
/// <param name="tag">Tag to use as the root tag when adding <paramref name="dependent_tag"/> to the database</param>
/// <param name="dependent_tag">Tag which is directly referenced by <paramref name="tag"/></param>
/// <returns>Hash value for tag's database entry</returns>
/// <remarks>
/// Does not modify the current root tag.
/// <paramref name="tag"/> must already already exist in the database
/// </remarks>
public int AddDependent(ITagDatabaseAddable tag, ITagDatabaseAddable dependent_tag)
{
HandleData root_data = new HandleData(tag);
HandleData data = new HandleData(dependent_tag);
return(AddDependent(root_data, data));
}
public HandleData(ITagDatabaseAddable item)
{
this.Name = null;
this.GroupTag = null;
Hash = -1;
CalculateHashCode64(item, ref this);
}
static long CalculateHashCode64(ITagDatabaseAddable item, ref HandleData data)
{
long hash;
hash = (data.Name = item.GetTagName()).GetHashCode();
hash <<= 32;
hash |= TagInterface.TagGroup.ToUInt(data.GroupTag = item.GetGroupTag());
return(data.Hash = hash);
}
static long CalculateHashCode64(ITagDatabaseAddable item)
{
long hash;
hash = item.GetTagName().GetHashCode();
hash <<= 32;
hash |= TagInterface.TagGroup.ToUInt(item.GetGroupTag());
return(hash);
}
// I don't see any reasons for implementing Add variants for explicit
// tag_name and group_tag values
#region ITagDatabaseAddable
/// <summary>
/// Add a tag to the database
/// </summary>
/// <param name="tag"></param>
/// <returns>Hash value for tag's database entry</returns>
public int Add(ITagDatabaseAddable tag)
{
HandleData data = new HandleData(tag);
return(Add(data));
}
/// <summary>
/// Initialize the tag database with a root tag
/// </summary>
/// <param name="engine"></param>
/// <param name="root_tag"></param>
protected TagDatabase(BlamVersion engine, ITagDatabaseAddable root_tag) : this(engine)
{ SetRoot(root_tag); }
/// <summary>
/// Set the current "root" tag of the database
/// </summary>
/// <param name="root"></param>
public void SetRoot(ITagDatabaseAddable root)
{
Add(rootData = new HandleData(root));
}
