From 61b3046661f8bb14f12b2a45650bb23b1d68f09a Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Wed, 20 Dec 2017 01:05:21 +0100
Subject: autoload/grappele.vim: Only try to recall if a location was saved

Previously, if `gG` (the recall mapping) was pressed before previously
having pressed a `G` command, the following error would appear:

    Error detected while processing function grappele#Recall:
    line    1:
    E121: Undefined variable: s:line
    E116: Invalid arguments for function grappele#Grappele

This happened because no previous `G` location had been saved.

Displaying an error here makes for a bad user experience. Instead if
this happens, we should just do nothing. To prevent the error, check for
the existence of the `s:line` variable before trying to use it.
---
 autoload/grappele.vim | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'autoload')

diff --git a/autoload/grappele.vim b/autoload/grappele.vim
index c699f0d..9139116 100644
--- a/autoload/grappele.vim
+++ b/autoload/grappele.vim
@@ -21,5 +21,7 @@ function! grappele#Grappele(line)
 endfunction
 
 function! grappele#Recall()
-	call grappele#Grappele(s:line)
+	if exists('s:line')
+		call grappele#Grappele(s:line)
+	endif
 endfunction
-- 
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