From 5d2a2ef737b94bf3429c8af75eec46121712d675 Mon Sep 17 00:00:00 2001
From: Humza Shahid <humzasaur@gmail.com>
Date: Thu, 11 Sep 2025 18:01:19 +0100
Subject: [PATCH] add function to get line number of LineGap to signature, so
 that it is available to callers

---
 src/line_gap.sml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/line_gap.sml b/src/line_gap.sml
index 2a20d82..8d4cbaa 100644
--- a/src/line_gap.sml
+++ b/src/line_gap.sml
@@ -28,6 +28,8 @@ sig
   val goToIdx: int * t -> t
   val goToLine: int * t -> t
 
+  val getLineNumberOfIdx: int * t -> int
+
   (* for testing *)
   val verifyIndex: t -> unit
   val verifyLines: t -> unit