Don't import FastString in HsVersions.h

[ghc-hetmet.git] / compiler / typecheck / TcType.lhs

diff --git a/compiler/typecheck/TcType.lhs b/compiler/typecheck/TcType.lhs
index 625f855..95d8deb 100644 (file)
--- a/compiler/typecheck/TcType.lhs
+++ b/compiler/typecheck/TcType.lhs
@@ -165,6 +165,7 @@ import Util
 import Maybes
 import ListSetOps
 import Outputable
+import FastString
 
 import Data.List
 import Data.IORef
@@ -670,9 +671,7 @@ tcSplitPhiTy ty = split ty ty []
   split orig_ty ty tvs | Just ty' <- tcView ty = split orig_ty ty' tvs
 
   split orig_ty (ForAllTy tv ty) ts
-        | isCoVar tv = split ty ty (eq_pred:ts)
-        where
-           PredTy eq_pred = tyVarKind tv
+        | isCoVar tv = split ty ty (coVarPred tv : ts)
   split orig_ty (FunTy arg res) ts 
        | Just p <- tcSplitPredTy_maybe arg = split res res (p:ts)
   split orig_ty ty             ts = (reverse ts, orig_ty)
@@ -814,7 +813,6 @@ tcInstHeadTyNotSynonym :: Type -> Bool
 -- are transparent, so we need a special function here
 tcInstHeadTyNotSynonym ty
   = case ty of
-        NoteTy _ ty     -> tcInstHeadTyNotSynonym ty
         TyConApp tc tys -> not (isSynTyCon tc)
         _ -> True
 
@@ -823,7 +821,6 @@ tcInstHeadTyAppAllTyVars :: Type -> Bool
 -- These must be a constructor applied to type variable arguments
 tcInstHeadTyAppAllTyVars ty
   = case ty of
-       NoteTy _ ty     -> tcInstHeadTyAppAllTyVars ty
        TyConApp _ tys  -> ok tys
        FunTy arg res   -> ok [arg, res]
        other           -> False
@@ -834,7 +831,6 @@ tcInstHeadTyAppAllTyVars ty
           where
             tvs = mapCatMaybes get_tv tys
 
-    get_tv (NoteTy _ ty) = get_tv ty   -- Again, do not look
     get_tv (TyVarTy tv)  = Just tv     -- through synonyms
     get_tv other        = Nothing
 \end{code}
@@ -1022,7 +1018,6 @@ tcTyVarsOfType :: Type -> TcTyVarSet
 tcTyVarsOfType (TyVarTy tv)        = if isTcTyVar tv then unitVarSet tv
                                                      else emptyVarSet
 tcTyVarsOfType (TyConApp tycon tys) = tcTyVarsOfTypes tys
-tcTyVarsOfType (NoteTy _ ty)       = tcTyVarsOfType ty
 tcTyVarsOfType (PredTy sty)        = tcTyVarsOfPred sty
 tcTyVarsOfType (FunTy arg res)     = tcTyVarsOfType arg `unionVarSet` tcTyVarsOfType res
 tcTyVarsOfType (AppTy fun arg)     = tcTyVarsOfType fun `unionVarSet` tcTyVarsOfType arg
@@ -1086,7 +1081,6 @@ exactTyVarsOfType ty
     go (AppTy fun arg)           = go fun `unionVarSet` go arg
     go (ForAllTy tyvar ty)       = delVarSet (go ty) tyvar
                                     `unionVarSet` go_tv tyvar
-    go (NoteTy _ _)              = panic "exactTyVarsOfType"   -- Handled by tcView
 
     go_pred (IParam _ ty)    = go ty
     go_pred (ClassP _ tys)   = exactTyVarsOfTypes tys
@@ -1106,7 +1100,6 @@ end of the compiler.
 tyClsNamesOfType :: Type -> NameSet
 tyClsNamesOfType (TyVarTy tv)              = emptyNameSet
 tyClsNamesOfType (TyConApp tycon tys)      = unitNameSet (getName tycon) `unionNameSets` tyClsNamesOfTypes tys
-tyClsNamesOfType (NoteTy _ ty2)            = tyClsNamesOfType ty2
 tyClsNamesOfType (PredTy (IParam n ty))     = tyClsNamesOfType ty
 tyClsNamesOfType (PredTy (ClassP cl tys))   = unitNameSet (getName cl) `unionNameSets` tyClsNamesOfTypes tys
 tyClsNamesOfType (PredTy (EqPred ty1 ty2))  = tyClsNamesOfType ty1 `unionNameSets` tyClsNamesOfType ty2