From 6a0507c51e073846380030d4e665932a0a2ecc45 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Mon, 5 Jun 2023 14:32:27 -0500
Subject: [PATCH] Display multi-line signatureHelp correctly

Newlines in signatureHelp label were being displayed incorrectly as NUL
characters (^@) in the preview window.
---
 autoload/lsc/signaturehelp.vim | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/autoload/lsc/signaturehelp.vim b/autoload/lsc/signaturehelp.vim
index 19229695..dc80175b 100644
--- a/autoload/lsc/signaturehelp.vim
+++ b/autoload/lsc/signaturehelp.vim
@@ -45,9 +45,10 @@ function! s:ShowHelp(signatureHelp) abort
   if !has_key(l:signature, 'label')
     return
   endif
+  let l:lines = split(l:signature.label, "\n")
 
   if !has_key(l:signature, 'parameters')
-    call lsc#util#displayAsPreview([l:signature.label], &filetype,
+    call lsc#util#displayAsPreview(l:lines, &filetype,
         \ function('<SID>HighlightCurrentParameter'))
     return
   endif
@@ -60,7 +61,7 @@ function! s:ShowHelp(signatureHelp) abort
     endif
   endif
 
-  call lsc#util#displayAsPreview([l:signature.label], &filetype,
+  call lsc#util#displayAsPreview(l:lines, &filetype,
       \ function('<SID>HighlightCurrentParameter'))
 
 endfunction