From 8c55acb07659d7406b4077b9e3a5bbe9cc035d21 Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Wed, 11 Jan 2017 13:43:41 +0000
Subject: [PATCH] Detect empty selection lists when restoring selections from
 registers

Fixes #1123
---
 src/normal.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/normal.cc b/src/normal.cc
index 761af327..fec35a49 100644
--- a/src/normal.cc
+++ b/src/normal.cc
@@ -1436,6 +1436,9 @@ SelectionList read_selections_from_register(char reg, Context& context)
     for (auto sel_desc : StringView{desc.begin(), arobase} | split<StringView>(':'))
         sels.push_back(selection_from_string(sel_desc));
 
+    if (sels.empty())
+        throw runtime_error(format("Register {} contains an empty selection list", reg));
+
     return {buffer, std::move(sels), timestamp};
 }