add clang for objc and objcpp

README.md

@@ -89,6 +89,8 @@ name. That seems to be the fairest way to arrange this table.
 | Nim | [nim](https://nim-lang.org/docs/nimc.html) |
 | nix | [nix-instantiate](http://nixos.org/nix/manual/#sec-nix-instantiate) |
 | nroff | [proselint](http://proselint.com/)|
+| Objective-C | [clang](http://clang.llvm.org/) |
+| Objective-C++ | [clang](http://clang.llvm.org/) |
 | OCaml | [merlin](https://github.com/the-lambda-church/merlin) see `:help ale-integration-ocaml-merlin` for configuration instructions
 | Perl | [perl -c](https://perl.org/), [perl-critic](https://metacpan.org/pod/Perl::Critic) |
 | PHP | [hack](http://hacklang.org/), [php -l](https://secure.php.net/), [phpcs](https://github.com/squizlabs/PHP_CodeSniffer), [phpmd](https://phpmd.org) |

ale_linters/objc/clang.vim

@@ -0,0 +1,23 @@
+" Author: Bang Lee <https://github.com/Qusic>
+" Description: clang linter for objc files
+
+" Set this option to change the Clang options for warnings for ObjC.
+if !exists('g:ale_objc_clang_options')
+    let g:ale_objc_clang_options = '-std=c11 -Wall'
+endif
+
+function! ale_linters#objc#clang#GetCommand(buffer) abort
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    return 'clang -S -x objective-c -fsyntax-only '
+    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . ' ' . ale#Var(a:buffer, 'objc_clang_options') . ' -'
+endfunction
+
+call ale#linter#Define('objc', {
+\   'name': 'clang',
+\   'output_stream': 'stderr',
+\   'executable': 'clang',
+\   'command_callback': 'ale_linters#objc#clang#GetCommand',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\})

ale_linters/objcpp/clang.vim

@@ -0,0 +1,23 @@
+" Author: Bang Lee <https://github.com/Qusic>
+" Description: clang linter for objcpp files
+
+" Set this option to change the Clang options for warnings for ObjCPP.
+if !exists('g:ale_objcpp_clang_options')
+    let g:ale_objcpp_clang_options = '-std=c++14 -Wall'
+endif
+
+function! ale_linters#objcpp#clang#GetCommand(buffer) abort
+    " -iquote with the directory the file is in makes #include work for
+    "  headers in the same directory.
+    return 'clang++ -S -x objective-c++ -fsyntax-only '
+    \   . '-iquote ' . ale#Escape(fnamemodify(bufname(a:buffer), ':p:h'))
+    \   . ' ' . ale#Var(a:buffer, 'objcpp_clang_options') . ' -'
+endfunction
+
+call ale#linter#Define('objcpp', {
+\   'name': 'clang',
+\   'output_stream': 'stderr',
+\   'executable': 'clang++',
+\   'command_callback': 'ale_linters#objcpp#clang#GetCommand',
+\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\})

doc/ale-objc.txt

@@ -0,0 +1,17 @@
+===============================================================================
+ALE Objective-C Integration                                  *ale-objc-options*
+
+
+-------------------------------------------------------------------------------
+clang                                                          *ale-objc-clang*
+
+g:ale_objc_clang_options                             *g:ale_objc_clang_options*
+                                                     *b:ale_objc_clang_options*
+  Type: |String|
+  Default: `'-std=c11 -Wall'`
+
+  This variable can be changed to modify flags given to clang.
+
+
+-------------------------------------------------------------------------------
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

doc/ale-objcpp.txt

@@ -0,0 +1,17 @@
+===============================================================================
+ALE Objective-C++ Integration                              *ale-objcpp-options*
+
+
+-------------------------------------------------------------------------------
+clang                                                        *ale-objcpp-clang*
+
+g:ale_objcpp_clang_options                         *g:ale_objcpp_clang_options*
+                                                   *b:ale_objcpp_clang_options*
+  Type: |String|
+  Default: `'-std=c++14 -Wall'`
+
+  This variable can be changed to modify flags given to clang.
+
+
+-------------------------------------------------------------------------------
+  vim:tw=78:ts=2:sts=2:sw=2:ft=help:norl:

doc/ale.txt

@@ -52,6 +52,10 @@ CONTENTS                                                         *ale-contents*
       kotlinc.............................|ale-kotlin-kotlinc|
     lua...................................|ale-lua-options|
       luacheck............................|ale-lua-luacheck|
+    objc..................................|ale-objc-options|
+      clang...............................|ale-objc-clang|
+    objcpp................................|ale-objcpp-options|
+      clang...............................|ale-objcpp-clang|
     ocaml.................................|ale-ocaml-options|
       merlin..............................|ale-ocaml-merlin|
     perl..................................|ale-perl-options|
@@ -153,6 +157,8 @@ The following languages and tools are supported.
 * nim: 'nim check'
 * nix: 'nix-instantiate'
 * nroff: 'proselint'
+* Objective-C: 'clang'
+* Objective-C++: 'clang'
 * OCaml: 'merlin' (see |ale-linter-integration-ocaml-merlin|)
 * Perl: 'perl' (-c flag), 'perlcritic'
 * PHP: 'hack', 'php' (-l flag), 'phpcs', 'phpmd'