X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcHsSyn.lhs;h=56c98dc13990e0a7205c2217cd79a18c7963b53b;hb=940524aec90652b5ef81789c9a453c57c0e42cc9;hp=851d833fcedf5ffd93aeb2c90c4274d8bbf4ed5f;hpb=190f24892156953d73b55401d0467a6f1a88ce5d;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcHsSyn.lhs b/compiler/typecheck/TcHsSyn.lhs
index 851d833..56c98dc 100644
--- a/compiler/typecheck/TcHsSyn.lhs
+++ b/compiler/typecheck/TcHsSyn.lhs
@@ -1,7 +1,9 @@
-	%
+%
+% (c) The University of Glasgow 2006
 % (c) The AQUA Project, Glasgow University, 1996-1998
 %
-\section[TcHsSyn]{Specialisations of the @HsSyn@ syntax for the typechecker}
+
+TcHsSyn: Specialisations of the @HsSyn@ syntax for the typechecker
 
 This module is an extension of @HsSyn@ syntax, for use in the type
 checker.
@@ -13,6 +15,7 @@ module TcHsSyn (
 	mkHsAppTy, mkSimpleHsAlt,
 	nlHsIntLit, mkVanillaTuplePat,
 	
+	mkArbitraryType,	-- Put this elsewhere?
 
 	-- re-exported from TcMonad
 	TcId, TcIdSet, TcDictBinds,
@@ -27,30 +30,24 @@ module TcHsSyn (
 import HsSyn	-- oodles of it
 
 -- others:
-import Id	( idType, setIdType, Id )
+import Id
 
 import TcRnMonad
-import Type	  ( Type, isLiftedTypeKind, liftedTypeKind, isSubKind, eqKind  )
-import TcType	  ( TcType, TcTyVar, mkTyVarTy, mkTyConApp, isImmutableTyVar )
-import qualified  Type
-import TcMType	  ( zonkQuantifiedTyVar, zonkType, zonkTcType, writeMetaTyVar )
-import TysPrim	  ( charPrimTy, intPrimTy, floatPrimTy,
-		    doublePrimTy, addrPrimTy
-		  )
-import TysWiredIn ( charTy, stringTy, intTy, 
-		    mkListTy, mkPArrTy, mkTupleTy, unitTy,
-		    voidTy, listTyCon, tupleTyCon )
-import TyCon	  ( mkPrimTyCon, tyConKind, PrimRep(..) )
-import {- Kind parts of -} Type	  ( splitKindFunTys )
-import Name	  ( Name, getOccName, mkInternalName, mkDerivedTyConOcc )
-import Var	  ( Var, isId, isLocalVar, tyVarKind )
+import Type
+import TcType
+import TcMType
+import TysPrim
+import TysWiredIn
+import TyCon
+import Name
+import Var
 import VarSet
 import VarEnv
-import BasicTypes ( Boxity(..), IPName(..), ipNameName, mapIPName )
-import Maybes	  ( orElse )
-import Unique	  ( Uniquable(..) )
-import SrcLoc	  ( noSrcLoc, noLoc, Located(..), unLoc )
-import Util	  ( mapSnd )
+import BasicTypes
+import Maybes
+import Unique
+import SrcLoc
+import Util
 import Bag
 import Outputable
 \end{code}
@@ -120,7 +117,7 @@ hsLitType (HsDoublePrim d) = doublePrimTy
 zonkId :: TcId -> TcM TcId
 zonkId id
   = zonkTcType (idType id) `thenM` \ ty' ->
-    returnM (setIdType id ty')
+    returnM (Id.setIdType id ty')
 \end{code}
 
 The rest of the zonking is done *after* typechecking.
@@ -189,7 +186,7 @@ zonkIdOccs env ids = map (zonkIdOcc env) ids
 zonkIdBndr :: ZonkEnv -> TcId -> TcM Id
 zonkIdBndr env id
   = zonkTcTypeToType env (idType id)	`thenM` \ ty' ->
-    returnM (setIdType id ty')
+    returnM (Id.setIdType id ty')
 
 zonkIdBndrs :: ZonkEnv -> [TcId] -> TcM [Id]
 zonkIdBndrs env ids = mappM (zonkIdBndr env) ids
@@ -305,11 +302,12 @@ zonk_bind env (AbsBinds { abs_tvs = tyvars, abs_dicts = dicts,
 	= zonkIdBndr env global			`thenM` \ new_global ->
 	  mapM zonk_prag prags			`thenM` \ new_prags -> 
 	  returnM (tyvars, new_global, zonkIdOcc env local, new_prags)
-    zonk_prag prag@(InlinePrag {})  = return prag
-    zonk_prag (SpecPrag expr ty ds inl) = do { expr' <- zonkExpr env expr 
-					     ; ty'   <- zonkTcTypeToType env ty
-					     ; let ds' = zonkIdOccs env ds
-					     ; return (SpecPrag expr' ty' ds' inl) }
+    zonk_prag prag@(L _ (InlinePrag {}))  = return prag
+    zonk_prag (L loc (SpecPrag expr ty ds inl))
+	= do { expr' <- zonkExpr env expr 
+	     ; ty'   <- zonkTcTypeToType env ty
+	     ; let ds' = zonkIdOccs env ds
+	     ; return (L loc (SpecPrag expr' ty' ds' inl)) }
 \end{code}
 
 %************************************************************************
@@ -463,12 +461,12 @@ zonkExpr env (RecordCon data_con con_expr rbinds)
     zonkRbinds env rbinds	`thenM` \ new_rbinds ->
     returnM (RecordCon data_con new_con_expr new_rbinds)
 
-zonkExpr env (RecordUpd expr rbinds in_ty out_ty)
-  = zonkLExpr env expr		`thenM` \ new_expr ->
-    zonkTcTypeToType env in_ty	`thenM` \ new_in_ty ->
-    zonkTcTypeToType env out_ty	`thenM` \ new_out_ty ->
-    zonkRbinds env rbinds	`thenM` \ new_rbinds ->
-    returnM (RecordUpd new_expr new_rbinds new_in_ty new_out_ty)
+zonkExpr env (RecordUpd expr rbinds cons in_tys out_tys)
+  = zonkLExpr env expr			`thenM` \ new_expr ->
+    mapM (zonkTcTypeToType env) in_tys	`thenM` \ new_in_tys ->
+    mapM (zonkTcTypeToType env) out_tys	`thenM` \ new_out_tys ->
+    zonkRbinds env rbinds		`thenM` \ new_rbinds ->
+    returnM (RecordUpd new_expr new_rbinds cons new_in_tys new_out_tys)
 
 zonkExpr env (ExprWithTySigOut e ty) 
   = do { e' <- zonkLExpr env e
@@ -490,6 +488,10 @@ zonkExpr env (HsSCC lbl expr)
   = zonkLExpr env expr	`thenM` \ new_expr ->
     returnM (HsSCC lbl new_expr)
 
+zonkExpr env (HsTickPragma info expr)
+  = zonkLExpr env expr	`thenM` \ new_expr ->
+    returnM (HsTickPragma info new_expr)
+
 -- hdaume: core annotations
 zonkExpr env (HsCoreAnn lbl expr)
   = zonkLExpr env expr   `thenM` \ new_expr ->
@@ -561,6 +563,8 @@ zonkOverLit env (HsIntegral i e)
   = do	{ e' <- zonkExpr env e; return (HsIntegral i e') }
 zonkOverLit env (HsFractional r e)
   = do	{ e' <- zonkExpr env e; return (HsFractional r e') }
+zonkOverLit env (HsIsString s e)
+  = do	{ e' <- zonkExpr env e; return (HsIsString s e') }
 
 -------------------------------------------------------------------------
 zonkArithSeq :: ZonkEnv -> ArithSeqInfo TcId -> TcM (ArithSeqInfo Id)
@@ -642,8 +646,8 @@ zonkStmt env (BindStmt pat expr bind_op fail_op)
 -------------------------------------------------------------------------
 zonkRbinds :: ZonkEnv -> HsRecordBinds TcId -> TcM (HsRecordBinds Id)
 
-zonkRbinds env rbinds
-  = mappM zonk_rbind rbinds
+zonkRbinds env (HsRecordBinds rbinds)
+  = mappM zonk_rbind rbinds >>= return . HsRecordBinds
   where
     zonk_rbind (field, expr)
       = zonkLExpr env expr	`thenM` \ new_expr ->
@@ -922,24 +926,22 @@ mkArbitraryType :: TcTyVar -> Type
 -- Make up an arbitrary type whose kind is the same as the tyvar.
 -- We'll use this to instantiate the (unbound) tyvar.
 mkArbitraryType tv 
-  | liftedTypeKind `isSubKind` kind = voidTy		-- The vastly common case
+  | liftedTypeKind `isSubKind` kind = anyPrimTy		-- The vastly common case
   | otherwise			    = mkTyConApp tycon []
   where
     kind       = tyVarKind tv
     (args,res) = splitKindFunTys kind
 
-    tycon | eqKind kind (tyConKind listTyCon) 	--  *->*
-	  = listTyCon				-- No tuples this size
+    tycon | eqKind kind (tyConKind anyPrimTyCon1) 	--  *->*
+	  = anyPrimTyCon1				-- No tuples this size
 
 	  | all isLiftedTypeKind args && isLiftedTypeKind res
 	  = tupleTyCon Boxed (length args)	--  *-> ... ->*->*
+		-- Horrible hack to make less use of mkAnyPrimTyCon
 
 	  | otherwise
-	  = pprTrace "Urk! Inventing strangely-kinded void TyCon:" (ppr tc_name $$ ppr kind) $
-	    mkPrimTyCon tc_name kind 0 VoidRep
+	  = mkAnyPrimTyCon (getUnique tv) kind
 		-- Same name as the tyvar, apart from making it start with a colon (sigh)
 		-- I dread to think what will happen if this gets out into an 
 		-- interface file.  Catastrophe likely.  Major sigh.
-
-    tc_name = mkInternalName (getUnique tv) (mkDerivedTyConOcc (getOccName tv)) noSrcLoc
 \end{code}