From a3caecbd6ac3d0e8e16fdb8faa3241810ac70ce2 Mon Sep 17 00:00:00 2001
From: Alex Yatskov <alex@foosoft.net>
Date: Tue, 2 Dec 2014 12:31:44 +0900
Subject: [PATCH] Early out when no arguments, store cursor position

---
 autoload/argwrap.vim | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/autoload/argwrap.vim b/autoload/argwrap.vim
index 75f32c4..5bd4fa0 100644
--- a/autoload/argwrap.vim
+++ b/autoload/argwrap.vim
@@ -179,8 +179,9 @@ function! argwrap#adjustCursor()
 endfunction
 
 function! argwrap#toggle()
-    call argwrap#adjustCursor()
+    let l:cursor = getpos('.')
 
+    call argwrap#adjustCursor()
     let l:range = argwrap#findClosestRange()
     if !argwrap#validateRange(l:range)
         return
@@ -188,11 +189,16 @@ function! argwrap#toggle()
 
     let l:argText   = argwrap#extractContainerArgText(l:range)
     let l:arguments = argwrap#extractContainerArgs(l:argText)
-    let l:container = argwrap#extractContainer(l:range)
+    if len(l:arguments) == 0
+        return
+    endif
 
+    let l:container = argwrap#extractContainer(l:range)
     if l:range.lineStart == l:range.lineEnd
         call argwrap#wrapContainer(l:range, l:container, l:arguments)
     else
         call argwrap#unwrapContainer(l:range, l:container, l:arguments)
     endif
+
+    call setpos('.', l:cursor)
 endfunction