public static UnifiedSet <T> ToSet <T>(this T singleton)
where T : UnifiedElement
{
if (singleton == null)
{
return(UnifiedSet <T> .Create());
}
return(UnifiedSet <T> .Create(singleton));
}
public static UnifiedSet <UnifiedAnnotation> Merge(
this IList <UnifiedSet <UnifiedAnnotation> > collections)
{
Contract.Requires <InvalidOperationException>(
collections.All(c => c.Parent == null));
if (collections.Count == 0)
{
return(UnifiedSet <UnifiedAnnotation> .Create());
}
var ret = collections[0];
for (int i = 1; i < collections.Count; i++)
{
ret.AddRange(collections[i].ElementsThenClear());
}
return(ret);
}
public static UnifiedSet <T> ToSet <T>(this IEnumerable <T> collection)
where T : UnifiedElement
{
return(UnifiedSet <T> .Create(collection));
}
