From 5122cf52532f9c1ddccfb806317850c82659c050 Mon Sep 17 00:00:00 2001
From: Andreas Louv <andreas@louv.dk>
Date: Sun, 16 Apr 2023 14:02:15 +0200
Subject: [PATCH] Add error message to "LspHighlight"

---
 autoload/lsp/lspserver.vim | 1 +
 test/clangd_tests.vim      | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/autoload/lsp/lspserver.vim b/autoload/lsp/lspserver.vim
index bda340d..911383e 100644
--- a/autoload/lsp/lspserver.vim
+++ b/autoload/lsp/lspserver.vim
@@ -870,6 +870,7 @@ enddef
 # Result: DocumentHighlight[] | null
 def DocHighlightReply(bnr: number, lspserver: dict<any>, docHighlightReply: any): void
   if docHighlightReply->empty()
+    util.WarnMsg($'No highlight for the current position')
     return
   endif
 
diff --git a/test/clangd_tests.vim b/test/clangd_tests.vim
index 7ede12b..28c2ea8 100644
--- a/test/clangd_tests.vim
+++ b/test/clangd_tests.vim
@@ -936,6 +936,9 @@ def g:Test_LspHighlight()
     {
       int i = arg;
       arg = 2;
+      if (arg == 2) {
+        arg = 3;
+      }
     }
   END
   setline(1, lines)
@@ -956,6 +959,10 @@ def g:Test_LspHighlight()
   assert_equal([], prop_list(1))
   assert_equal([], prop_list(3))
   assert_equal([], prop_list(4))
+
+  cursor(5, 3) # if (arg == 2) {
+  var output = execute('LspHighlight')->split("\n")
+  assert_match('No highlight for the current position', output[0])
   :%bw!
 enddef
 
-- 
2.50.0