adding OverloadedStrings extension, hiding conflicting <$> operator

.gitignore

@@ -1,2 +1,4 @@
 /Setup
 /dist/
+**/#*
+**/.#*

Nix/Eval.hs

@@ -1,3 +1,4 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Nix.Eval where
 
 import           Control.Applicative

Nix/Parser.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE CPP #-}
+{-# LANGUAGE OverloadedStrings #-}
 
 module Nix.Parser (parseNixFile, parseNixString, Result(..)) where
 

Nix/Parser/Library.hs

@@ -1,5 +1,6 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE OverloadedStrings #-}
 module Nix.Parser.Library ( module Nix.Parser.Library, module X) where
 
 import Control.Applicative

Nix/Pretty.hs

@@ -1,5 +1,7 @@
+{-# LANGUAGE OverloadedStrings #-}
 module Nix.Pretty where
 
+import Prelude hiding ((<$>))
 import Data.Fix
 import Data.Map (toList)
 import Data.Maybe (isJust)
@@ -23,12 +25,12 @@ data NixDoc = NixDoc
   }
 
 -- | A simple expression is never wrapped in parentheses. The expression
--- behaves as if it's root operator had a precedence higher than all
+-- behaves as if its root operator had a precedence higher than all
 -- other operators (including function application).
 simpleExpr :: Doc -> NixDoc
 simpleExpr = flip NixDoc $ OperatorInfo maxBound NAssocNone "simple expr"
 
--- | An expression that behaves as if it's root operator
+-- | An expression that behaves as if its root operator
 -- had a precedence lower than all other operators.
 -- That ensures that the expression is wrapped in parantheses in
 -- almost always, but it's still rendered without parentheses