public static void Add(this CrawledTrie <CrawledIssue> trie, CrawledIssue issue)
{
var terms = issue.GetTrieTerms();
foreach (var term in terms)
{
trie.Add(term, issue);
}
}
static void ApplyTerm(ref HashSet <CrawledIssue> result, CrawledTrie <CrawledIssue> trie, string term)
{
var issues = trie.Lookup(term);
if (result is null)
{
result = issues.ToHashSet();
}
else
{
result.IntersectWith(issues);
}
}