From 057606e845f36df045466af2821244026b6cf0f3 Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Thu, 23 Sep 2021 09:23:57 -0600
Subject: fix(diagnostic): don't return nil when callers expect a table
 (#15765)

diagnostic_lines() returns a table, so make the early exit condition an
empty table rather than 'nil'. This way, functions that use the input
from diagnostic_lines don't have to do a bunch of defensive nil checking
and can always assume they're operating on a table.
---
 runtime/lua/vim/diagnostic.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'runtime/lua/vim')

diff --git a/runtime/lua/vim/diagnostic.lua b/runtime/lua/vim/diagnostic.lua
index 961e071273..0539da676e 100644
--- a/runtime/lua/vim/diagnostic.lua
+++ b/runtime/lua/vim/diagnostic.lua
@@ -249,7 +249,7 @@ end
 ---@private
 local function diagnostic_lines(diagnostics)
   if not diagnostics then
-    return
+    return {}
   end
 
   local diagnostics_by_line = {}
-- 
cgit