1 files changed, 3 insertions, 14 deletions
diff --git a/app/Builtins.hs b/app/Builtins.hs
index a12da07..c63fb25 100644
--- a/app/Builtins.hs
+++ b/app/Builtins.hs
@@ -1,17 +1,6 @@
 module Builtins where
 
-import Code
-  ( Builtin(..)
-  , Code
-  , Datum(..)
-  , Dereferenced(..)
-  , Instr(..)
-  , InterpFn
-  , InterpFn
-  , derefHeap
-  , heapStruct
-  , newHeapVars
-  )
+import Code (Builtin(..), Code, Datum(..), Instr(..), InterpFn)
 import CodeLens
 import qualified Compiler as Co
 import Control.Exception (IOException, catch)
@@ -23,6 +12,7 @@ import Data.List (intercalate)
 import qualified Data.Map as M
 import Data.Maybe (fromJust)
 import Env (PrlgEnv(..), findAtom, findStruct, prlgError)
+import Heap (Dereferenced(..), derefHeap, heapStruct, newHeapVars)
 import qualified IR
 import Interpreter (backtrack)
 import Lens.Family2.State
@@ -199,8 +189,8 @@ structUnify arity str = do
   h <- use (cur . heap)
   scope <- use (cur . hvar)
   listAtom <- findAtom "[]"
+  pvars <- newHeapVars arity
   let hcode = map U $ maybe VoidRef HeapRef . (scope M.!?) <$> [0 .. 2]
-      (h', pvars) = newHeapVars arity h
       structData =
         Struct IR.Id {IR.arity = arity, IR.str = str} : map HeapRef pvars
       paramsData =
@@ -210,7 +200,6 @@ structUnify arity str = do
         [Atom listAtom]
       gcode = map U $ structData ++ [Atom str] ++ paramsData
   zoom cur $ do
-    heap .= h'
     gol %= (gcode ++)
     hed %= (hcode ++)
   continue