From 56237aa8f8adaffc63584a6e8435b9cf414d82ef Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Tue, 20 Mar 2018 05:35:15 +1100
Subject: [PATCH] Throw when trying to remove a child highlighter that does not
 exists

---
 src/highlighter_group.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/highlighter_group.cc b/src/highlighter_group.cc
index 1b3ba4156..01a62e9c8 100644
--- a/src/highlighter_group.cc
+++ b/src/highlighter_group.cc
@@ -39,6 +39,8 @@ void HighlighterGroup::add_child(HighlighterAndId&& hl)
 
 void HighlighterGroup::remove_child(StringView id)
 {
+    if (not m_highlighters.contains(id))
+        throw runtime_error{format("no such child: {}", id)};
     m_highlighters.remove(id);
 }