Add support for formatting java if >= 3.6

Author: Matt Fowles

autoload/codefmt.vim

@@ -188,8 +188,13 @@ function! codefmt#GetClangFormatFormatter() abort
   endfunction
 
   function l:formatter.AppliesToBuffer() abort
-    return &filetype is# 'c' || &filetype is# 'cpp' ||
+    if &filetype is# 'c' || &filetype is# 'cpp' ||
         \ &filetype is# 'proto' || &filetype is# 'javascript'
+      return 1
+    endif
+    " Version 3.6 adds support for java
+    " http://llvm.org/releases/3.6.0/tools/clang/docs/ReleaseNotes.html
+    return &filetype is# 'java' && s:ClangFormatHasAtLeastVersion([3, 6])
   endfunction
 
   ""

vroom/clangformat.vroom

@@ -76,7 +76,8 @@ You can format any buffer with clang-format specifying the formatter explicitly.
   @end
 
 Several filetypes will use the clang-format formatter by default: c, cpp,
-javascript, and proto.
+javascript, and proto.  If the version of clang-format is >= 3.6, then it will
+also format java files.
 
   @clear
   % f();
@@ -99,6 +100,12 @@ javascript, and proto.
   $ { "Cursor": 0 }
   $ f();
 
+  :set filetype=java
+  :FormatCode
+  ! clang-format .*
+  $ { "Cursor": 0 }
+  $ f();
+
   :set filetype=
 
 It can format specific line ranges of code using :FormatLines.