Nix: nixEval: change arg order

Author: Anton-Latukha

ChangeLog.md

@@ -21,9 +21,22 @@ Breaking:
   * `Nix.Types.Assumption`:
     * added instances:
       * `Assumption`: `{Semigroup,Monoid,One}`
+
   * `Nix.Type.Env`:
     * added instances:
       * `Env`: `{Semigroup,Monoid,One}`
+  * `Nix`:
+    * changed argument order:
+      * `nixEval`:
+        
+        ```haskell
+        -- was:
+          => Maybe FilePath -> Transform g (m a) -> Alg g (m a) -> Fix g -> m a
+        -- became:
+          => Transform g (m a) -> Alg g (m a) -> Maybe FilePath -> Fix g -> m a
+        ```
+        
+       
 
 
 ### [(diff)](https://github.com/haskell-nix/hnix/compare/0.13.0.1...0.13.1#files_bucket) 0.13.1 (2021-05-22)

src/Nix.hs

@@ -55,20 +55,20 @@ import           Nix.XML
 --   transformations, allowing them to be easily composed.
 nixEval
   :: (MonadNix e t f m, Has e Options, Functor g)
-  => Maybe FilePath
-  -> Transform g (m a)
+  => Transform g (m a)
   -> Alg g (m a)
+  -> Maybe FilePath
   -> Fix g
   -> m a
-nixEval mpath xform alg = withNixContext mpath . adi alg xform
+nixEval transform alg mpath = withNixContext mpath . adi alg transform
 
 -- | Evaluate a nix expression in the default context
 nixEvalExpr
   :: (MonadNix e t f m, Has e Options)
   => Maybe FilePath
   -> NExpr
   -> m (NValue t f m)
-nixEvalExpr mpath = nixEval mpath id Eval.eval
+nixEvalExpr = nixEval id Eval.eval
 
 -- | Evaluate a nix expression in the default context
 nixEvalExprLoc
@@ -77,9 +77,8 @@ nixEvalExprLoc
   => Maybe FilePath
   -> NExprLoc
   -> m (NValue t f m)
-nixEvalExprLoc mpath =
+nixEvalExprLoc =
   nixEval
-    mpath
     Eval.addMetaInfo
     Eval.evalContent