From bee8eccb421968d1f2628c15e9f2bfcc3d0418aa Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Tue, 4 May 2021 08:44:28 +0100
Subject: [PATCH] Fix a bug when code actions have no changes

---
 autoload/ale/code_action.vim | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/autoload/ale/code_action.vim b/autoload/ale/code_action.vim
index be4a25da..917190be 100644
--- a/autoload/ale/code_action.vim
+++ b/autoload/ale/code_action.vim
@@ -247,6 +247,10 @@ function! s:UpdateCursor(cursor, start, end, offset) abort
 endfunction
 
 function! ale#code_action#GetChanges(workspace_edit) abort
+    if a:workspace_edit is v:null
+        return {}
+    endif
+
     let l:changes = {}
 
     if has_key(a:workspace_edit, 'changes') && !empty(a:workspace_edit.changes)