1 files changed, 5 insertions, 15 deletions
diff --git a/src/Interpreter/Rep.hs b/src/Interpreter/Rep.hs
index 9056901..1226b0c 100644
--- a/src/Interpreter/Rep.hs
+++ b/src/Interpreter/Rep.hs
@@ -6,7 +6,6 @@ module Interpreter.Rep where
 import Data.List (intersperse, intercalate)
 import Data.Foldable (toList)
 import Data.IORef
-import GHC.TypeError
 
 import Array
 import AST
@@ -24,23 +23,14 @@ type family Rep t where
   Rep (TAccum t) = RepAc t
   Rep (TLEither a b) = Maybe (Either (Rep a) (Rep b))
 
--- Mutable, represents D2 of t. Has an O(1) zero.
+-- Mutable, represents monoid types t.
 type family RepAc t where
   RepAc TNil = ()
-  RepAc (TPair a b) = IORef (Maybe (RepAc a, RepAc b))
-  RepAc (TEither a b) = IORef (Maybe (Either (RepAc a) (RepAc b)))
-  RepAc (TMaybe t) = IORef (Maybe (RepAc t))
-  RepAc (TArr n t) = IORef (Maybe (Array n (RepAc t)))
-  RepAc (TScal sty) = RepAcScal sty
-  RepAc (TAccum t) = TypeError (Text "RepAcSparse: Nested accumulators")
+  RepAc (TPair a b) = (RepAc a, RepAc b)
   RepAc (TLEither a b) = IORef (Maybe (Either (RepAc a) (RepAc b)))
-
-type family RepAcScal t where
-  RepAcScal TI32 = ()
-  RepAcScal TI64 = ()
-  RepAcScal TF32 = IORef Float
-  RepAcScal TF64 = IORef Double
-  RepAcScal TBool = ()
+  RepAc (TMaybe t) = IORef (Maybe (RepAc t))
+  RepAc (TArr n t) = Array n (RepAc t)
+  RepAc (TScal sty) = IORef (ScalRep sty)
 
 newtype Value t = Value { unValue :: Rep t }