From ceffa89eb2f3231081c150ee76d1d8bc61ba0e6e Mon Sep 17 00:00:00 2001
From: Vishesh Handa <me@vhanda.in>
Date: Fri, 3 Apr 2020 19:39:03 +0200
Subject: [PATCH] Checklist: Add an extra assert

---
 lib/core/checklist.dart | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/core/checklist.dart b/lib/core/checklist.dart
index 93f484e8..c80b3f26 100644
--- a/lib/core/checklist.dart
+++ b/lib/core/checklist.dart
@@ -142,6 +142,7 @@ class Checklist {
   }
 
   void insertItem(int index, ChecklistItem item) {
+    assert(index <= items.length, "Trying to insert beyond the end");
     if (index == 0) {
       items.insert(0, item);
       nodes.insert(0, item.element);