Set --assume-filename for clangformat fixer

1 files changed, 9 insertions, 4 deletions

diff --git a/autoload/ale/fixers/clangformat.vim b/autoload/ale/fixers/clangformat.vim
index eae1a7b4..ea5743a5 100644
--- a/autoload/ale/fixers/clangformat.vim
+++ b/autoload/ale/fixers/clangformat.vim
@@ -13,10 +13,15 @@ function! ale#fixers#clangformat#GetExecutable(buffer) abort
 endfunction
 
 function! ale#fixers#clangformat#Fix(buffer) abort
+    let l:executable = ale#Escape(ale#fixers#clangformat#GetExecutable(a:buffer))
+    let l:filename = ale#Escape(bufname(a:buffer))
     let l:options = ale#Var(a:buffer, 'c_clangformat_options')
 
-    return {
-    \   'command': ale#Escape(ale#fixers#clangformat#GetExecutable(a:buffer))
-    \       . ' ' . l:options,
-    \}
+    let l:command = l:executable . ' --assume-filename=' . l:filename
+
+    if l:options isnot# ''
+        let l:command .= ' ' . l:options
+    endif
+
+    return {'command': l:command}
 endfunction