Merge pull request #326 from elixirscript/remove_warnings

bryanjos · web-flow · commit 2497e7253c09 · 2017-07-16T11:19:13.000-05:00
Remove warnings for FFI modules by adding underscore to args
diff --git a/lib/elixir_script/ffi.ex b/lib/elixir_script/ffi.ex
@@ -53,8 +53,21 @@ defmodule ElixirScript.FFI do
   ```
   """
   defmacro foreign({name, _, args}) do
+    args = Enum.map(args, fn
+      {:\\, meta0, [{name, meta, atom}, value]}->
+        name = String.to_atom("_" <> Atom.to_string(name))
+        {:\\, meta0, [{name, meta, atom}, value]}
+
+      {name, meta, atom} ->
+        name = String.to_atom("_" <> Atom.to_string(name))
+        {name, meta, atom}
+
+      other ->
+        other
+    end)
+
     quote do
       def unquote(name)(unquote_splicing(args)), do: nil
     end
   end
-end
+end
