From c27a7c69e5028e4a74ffc6deba869b04646b2a33 Mon Sep 17 00:00:00 2001
From: Thejas-bhat <thejas.orkombu@couchbase.com>
Date: Fri, 6 Dec 2024 12:34:59 +0530
Subject: [PATCH] exposing the cardinality API of the fst

---
 dict.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dict.go b/dict.go
index 7c52ae9..e0f29bc 100644
--- a/dict.go
+++ b/dict.go
@@ -38,6 +38,13 @@ type Dictionary struct {
 // represents an immutable, empty dictionary
 var emptyDictionary = &Dictionary{}
 
+func (d *Dictionary) Cardinality() int {
+	if d.fst != nil {
+		return d.fst.Len()
+	}
+	return 0
+}
+
 // PostingsList returns the postings list for the specified term
 func (d *Dictionary) PostingsList(term []byte, except *roaring.Bitmap,
 	prealloc segment.PostingsList) (segment.PostingsList, error) {