use the Unique package in a few places

src/Convert/ParamType.hs

@@ -8,6 +8,7 @@ module Convert.ParamType (convert) where
 
 import Control.Monad.Writer
 import Data.Either (isLeft)
+import Data.List.Unique (complex)
 import Data.Maybe (isJust, isNothing, fromJust)
 import qualified Data.Map.Strict as Map
 import qualified Data.Set as Set
@@ -32,13 +33,8 @@ convert files =
             mapM (collectDescriptionsM collectDescriptionM) files
         (files', instancesRaw) = runWriter $ mapM
             (mapM $ traverseModuleItemsM $ convertModuleItemM info) files
-        instances = reverse $ uniq [] instancesRaw
-        -- TODO: use the unique package
-        uniq curr [] = curr
-        uniq curr (x : xs) =
-            if elem x curr
-                then uniq curr xs
-                else uniq (x : curr) xs
+        instances = uniq instancesRaw
+        uniq l = l' where (l', _, _) = complex l
 
         -- add type parameter instantiations
         files'' = map (concatMap explodeDescription) files'
@@ -61,7 +57,7 @@ convert files =
         explodeDescription other = [other]
 
         -- remove or rewrite source modules that are no longer needed
-        files''' = map (reverse . uniq [] . concatMap replaceDefault) files''
+        files''' = map (uniq . concatMap replaceDefault) files''
         (usageMapRaw, usedTypedModulesRaw) =
             execWriter $ mapM (mapM collectUsageInfoM) files''
         usageMap = Map.unionsWith Set.union $ map (uncurry Map.singleton)

src/Convert/Stream.hs

@@ -7,6 +7,7 @@
 module Convert.Stream (convert) where
 
 import Control.Monad.Writer
+import Data.List.Unique (complex)
 
 import Convert.Traverse
 import Language.SystemVerilog.AST
@@ -23,12 +24,7 @@ convertDescription (description @ (Part _ _ _ _ _ _)) =
         (description', funcSet) =
             runWriter $ traverseModuleItemsM (traverseStmtsM traverseStmtM) description
         Part extern kw lifetime name ports items = description'
-        funcs = reverse $ uniq [] funcSet
-        uniq curr [] = curr
-        uniq curr (x : xs) =
-            if elem x curr
-                then uniq curr xs
-                else uniq (x : curr) xs
+        (funcs, _, _) = complex funcSet
 convertDescription other = other
 
 streamerBlock :: Expr -> Expr -> (LHS -> Expr -> Stmt) -> LHS -> Expr -> Stmt

stack.yaml

@@ -1,4 +1,7 @@
 resolver: lts-13.17
 
+extra-deps:
+    - Unique-0.4.7.6
+
 packages:
-- .
+    - .

sv2v.cabal

@@ -30,7 +30,8 @@ executable sv2v
     directory,
     filepath,
     hashable,
-    mtl
+    mtl,
+    Unique
   other-modules:
     -- SystemVerilog modules
     Language.SystemVerilog