Add a stub in the evaluator for operators

2014-07-04 02:06:27 -05:00 · 2014-07-04 02:06:27 -05:00 · 2a931e52e1
parent d9dfbcbd5a
commit 2a931e52e1
1 changed files with 1 additions and 0 deletions
--- a/Nix/Eval.hs
+++ b/Nix/Eval.hs
@ -31,6 +31,7 @@ evalExpr = cata phi
  where
    phi :: NExprF (NValue -> IO NValue) -> NValue -> IO NValue
    phi (NConstant x) = const $ return $ Fix $ NVConstant x
+    phi (NOper _x) = error "Operators are not yet defined"

    phi (NList l)     = \env ->
        Fix . NVList <$> mapM ($ env) l