%
-% (c) The AQUA Project, Glasgow University, 1996
+% (c) The AQUA Project, Glasgow University, 1996-1998
%
\section[TcHsSyn]{Specialisations of the @HsSyn@ syntax for the typechecker}
\begin{code}
module TcHsSyn (
TcMonoBinds, TcHsBinds, TcPat,
- TcExpr, TcGRHSsAndBinds, TcGRHS, TcMatch,
+ TcExpr, TcGRHSs, TcGRHS, TcMatch,
TcStmt, TcArithSeqInfo, TcRecordBinds,
TcHsModule, TcCoreExpr, TcDictBinds,
+ TcForeignExportDecl,
- TypecheckedHsBinds,
+ TypecheckedHsBinds, TypecheckedRuleDecl,
TypecheckedMonoBinds, TypecheckedPat,
TypecheckedHsExpr, TypecheckedArithSeqInfo,
- TypecheckedStmt,
+ TypecheckedStmt, TypecheckedForeignDecl,
TypecheckedMatch, TypecheckedHsModule,
- TypecheckedGRHSsAndBinds, TypecheckedGRHS,
+ TypecheckedGRHSs, TypecheckedGRHS,
TypecheckedRecordBinds, TypecheckedDictBinds,
- mkHsTyApp, mkHsDictApp,
- mkHsTyLam, mkHsDictLam,
+ mkHsTyApp, mkHsDictApp, mkHsConApp,
+ mkHsTyLam, mkHsDictLam, mkHsLet,
+ idsToMonoBinds,
-- re-exported from TcEnv
- TcIdOcc(..), TcIdBndr, tcIdType, tcIdTyVars, tcInstId,
+ TcId, tcInstId,
- maybeBoxedPrimType,
-
- zonkTopBinds, zonkBinds, zonkMonoBinds, zonkTcId
+ zonkTopBinds, zonkId, zonkIdOcc,
+ zonkForeignExports, zonkRules
) where
#include "HsVersions.h"
-- friends:
import HsSyn -- oodles of it
-import Id ( idType, dataConArgTys, mkIdWithNewType, Id
- )
-- others:
-import Name ( NamedThing(..) )
-import BasicTypes ( IfaceFlavour, Unused )
-import TcEnv ( tcLookupGlobalValueMaybe, tcExtendGlobalValEnv,
- TcIdOcc(..), TcIdBndr, tcIdType, tcIdTyVars, tcInstId
+import Id ( idName, idType, isLocalId, idUnfolding, setIdType, isIP, Id )
+import DataCon ( dataConWrapId )
+import TcEnv ( tcLookupGlobal_maybe, tcExtendGlobalValEnv,
+ TcEnv, TcId, tcInstId
)
import TcMonad
-import TcType ( TcType, TcMaybe, TcTyVar, TcBox,
- zonkTcTypeToType, zonkTcTyVarToTyVar, zonkTcType
+import TcType ( zonkTcTypeToType, zonkTcTyVarToTyVar, zonkTcType, zonkTcSigTyVars
)
-import TyCon ( isDataTyCon )
-import Type ( mkTyVarTy, splitAlgTyConApp_maybe, isUnpointedType, Type )
-import TyVar ( TyVar, TyVarEnv, emptyTyVarEnv, growTyVarEnvList )
-import TysPrim ( voidTy )
-import CoreSyn ( GenCoreExpr )
-import Unique ( Unique ) -- instances
+import CoreSyn ( Expr )
+import CoreUnfold( unfoldingTemplate )
+import BasicTypes ( RecFlag(..) )
import Bag
-import UniqFM
import Outputable
+import HscTypes ( TyThing(..) )
\end{code}
which have immutable type variables in them.
\begin{code}
-type TcHsBinds s = HsBinds (TcBox s) (TcIdOcc s) (TcPat s)
-type TcMonoBinds s = MonoBinds (TcBox s) (TcIdOcc s) (TcPat s)
-type TcDictBinds s = TcMonoBinds s
-type TcPat s = OutPat (TcBox s) (TcIdOcc s)
-type TcExpr s = HsExpr (TcBox s) (TcIdOcc s) (TcPat s)
-type TcGRHSsAndBinds s = GRHSsAndBinds (TcBox s) (TcIdOcc s) (TcPat s)
-type TcGRHS s = GRHS (TcBox s) (TcIdOcc s) (TcPat s)
-type TcMatch s = Match (TcBox s) (TcIdOcc s) (TcPat s)
-type TcStmt s = Stmt (TcBox s) (TcIdOcc s) (TcPat s)
-type TcArithSeqInfo s = ArithSeqInfo (TcBox s) (TcIdOcc s) (TcPat s)
-type TcRecordBinds s = HsRecordBinds (TcBox s) (TcIdOcc s) (TcPat s)
-type TcHsModule s = HsModule (TcBox s) (TcIdOcc s) (TcPat s)
-
-type TcCoreExpr s = GenCoreExpr (TcIdOcc s) (TcIdOcc s) (TcBox s)
-
-type TypecheckedPat = OutPat Unused Id
-type TypecheckedMonoBinds = MonoBinds Unused Id TypecheckedPat
+type TcHsBinds = HsBinds TcId TcPat
+type TcMonoBinds = MonoBinds TcId TcPat
+type TcDictBinds = TcMonoBinds
+type TcPat = OutPat TcId
+type TcExpr = HsExpr TcId TcPat
+type TcGRHSs = GRHSs TcId TcPat
+type TcGRHS = GRHS TcId TcPat
+type TcMatch = Match TcId TcPat
+type TcStmt = Stmt TcId TcPat
+type TcArithSeqInfo = ArithSeqInfo TcId TcPat
+type TcRecordBinds = HsRecordBinds TcId TcPat
+type TcHsModule = HsModule TcId TcPat
+
+type TcCoreExpr = Expr TcId
+type TcForeignExportDecl = ForeignDecl TcId
+type TcRuleDecl = RuleDecl TcId TcPat
+
+type TypecheckedPat = OutPat Id
+type TypecheckedMonoBinds = MonoBinds Id TypecheckedPat
type TypecheckedDictBinds = TypecheckedMonoBinds
-type TypecheckedHsBinds = HsBinds Unused Id TypecheckedPat
-type TypecheckedHsExpr = HsExpr Unused Id TypecheckedPat
-type TypecheckedArithSeqInfo = ArithSeqInfo Unused Id TypecheckedPat
-type TypecheckedStmt = Stmt Unused Id TypecheckedPat
-type TypecheckedMatch = Match Unused Id TypecheckedPat
-type TypecheckedGRHSsAndBinds = GRHSsAndBinds Unused Id TypecheckedPat
-type TypecheckedGRHS = GRHS Unused Id TypecheckedPat
-type TypecheckedRecordBinds = HsRecordBinds Unused Id TypecheckedPat
-type TypecheckedHsModule = HsModule Unused Id TypecheckedPat
+type TypecheckedHsBinds = HsBinds Id TypecheckedPat
+type TypecheckedHsExpr = HsExpr Id TypecheckedPat
+type TypecheckedArithSeqInfo = ArithSeqInfo Id TypecheckedPat
+type TypecheckedStmt = Stmt Id TypecheckedPat
+type TypecheckedMatch = Match Id TypecheckedPat
+type TypecheckedGRHSs = GRHSs Id TypecheckedPat
+type TypecheckedGRHS = GRHS Id TypecheckedPat
+type TypecheckedRecordBinds = HsRecordBinds Id TypecheckedPat
+type TypecheckedHsModule = HsModule Id TypecheckedPat
+type TypecheckedForeignDecl = ForeignDecl Id
+type TypecheckedRuleDecl = RuleDecl Id TypecheckedPat
\end{code}
\begin{code}
mkHsDictLam [] expr = expr
mkHsDictLam dicts expr = DictLam dicts expr
-\end{code}
-%************************************************************************
-%* *
-\subsection[BackSubst-HsBinds]{Running a substitution over @HsBinds@}
-%* *
-%************************************************************************
+mkHsLet EmptyMonoBinds expr = expr
+mkHsLet mbinds expr = HsLet (MonoBind mbinds [] Recursive) expr
-Some gruesome hackery for desugaring ccalls. It's here because if we put it
-in Type.lhs we get irritating loops, and it's only used by TcInstDcls.lhs and
-DsCCall.lhs.
+mkHsConApp data_con tys args = foldl HsApp (HsVar (dataConWrapId data_con) `mkHsTyApp` tys) args
-\begin{code}
-maybeBoxedPrimType :: Type -> Maybe (Id, Type)
-maybeBoxedPrimType ty
- = case splitAlgTyConApp_maybe ty of -- Data type,
- Just (tycon, tys_applied, [data_con]) | isDataTyCon tycon -- with exactly one constructor
- -> case (dataConArgTys data_con tys_applied) of
- [data_con_arg_ty] -- Applied to exactly one type,
- | isUnpointedType data_con_arg_ty -- which is primitive
- -> Just (data_con, data_con_arg_ty)
- other_cases -> Nothing
- other_cases -> Nothing
+idsToMonoBinds :: [Id] -> TcMonoBinds
+idsToMonoBinds ids
+ = andMonoBindList [ CoreMonoBind id (unfoldingTemplate (idUnfolding id))
+ | id <- ids
+ ]
\end{code}
%************************************************************************
%* *
%************************************************************************
-@zonkTcId@ just works on TcIdOccs. It's used when zonking Method insts.
-
-\begin{code}
-zonkTcId :: TcIdOcc s -> NF_TcM s (TcIdOcc s)
-zonkTcId tc_id@(RealId id) = returnNF_Tc tc_id
-zonkTcId (TcId id)
- = zonkTcType (idType id) `thenNF_Tc` \ ty' ->
- returnNF_Tc (TcId (mkIdWithNewType id ty'))
-\end{code}
-
This zonking pass runs over the bindings
a) to convert TcTyVars to TyVars etc, dereferencing any bindings etc
b) convert unbound TcTyVar to Void
- c) convert each TcIdBndr to an Id by zonking its type
-
-We pass an environment around so that
+ c) convert each TcId to an Id by zonking its type
- a) we know which TyVars are unbound
- b) we maintain sharing; eg an Id is zonked at its binding site and they
- all occurrences of that Id point to the common zonked copy
+The type variables are converted by binding mutable tyvars to immutable ones
+and then zonking as normal.
-Actually, since this is all in the Tc monad, it's convenient to keep the
-mapping from TcIds to Ids in the GVE of the Tc monad. (Those TcIds
-were previously in the LVE of the Tc monad.)
+The Ids are converted by binding them in the normal Tc envt; that
+way we maintain sharing; eg an Id is zonked at its binding site and they
+all occurrences of that Id point to the common zonked copy
It's all pretty boring stuff, because HsSyn is such a large type, and
the environment manipulation is tiresome.
\begin{code}
-extend_te te tyvars = growTyVarEnvList te [(tyvar, mkTyVarTy tyvar) | tyvar <- tyvars]
-
-zonkIdBndr :: TyVarEnv Type -> TcIdOcc s -> NF_TcM s Id
-zonkIdBndr te (RealId id) = returnNF_Tc id
-zonkIdBndr te (TcId id)
- = zonkTcTypeToType te (idType id) `thenNF_Tc` \ ty' ->
- returnNF_Tc (mkIdWithNewType id ty')
-
-
-zonkIdOcc :: TcIdOcc s -> NF_TcM s Id
-zonkIdOcc (RealId id) = returnNF_Tc id
-zonkIdOcc (TcId id)
- = tcLookupGlobalValueMaybe (getName id) `thenNF_Tc` \ maybe_id' ->
+-- zonkId is used *during* typechecking just to zonk the Id's type
+zonkId :: TcId -> NF_TcM TcId
+zonkId id
+ = zonkTcType (idType id) `thenNF_Tc` \ ty' ->
+ returnNF_Tc (setIdType id ty')
+
+-- zonkIdBndr is used *after* typechecking to get the Id's type
+-- to its final form. The TyVarEnv give
+zonkIdBndr :: TcId -> NF_TcM Id
+zonkIdBndr id
+ = zonkTcTypeToType (idType id) `thenNF_Tc` \ ty' ->
+ returnNF_Tc (setIdType id ty')
+
+zonkIdOcc :: TcId -> NF_TcM Id
+zonkIdOcc id
+ | not (isLocalId id) || isIP id
+ -- We're avoiding looking up superclass selectors
+ -- and constructors; zonking them is a no-op anyway, and the
+ -- superclass selectors aren't in the environment anyway.
+ = returnNF_Tc id
+ | otherwise
+ = tcLookupGlobal_maybe (idName id) `thenNF_Tc` \ maybe_id' ->
let
new_id = case maybe_id' of
- Just id' -> id'
- Nothing -> pprTrace "zonkIdOcc: " (ppr id) $
- mkIdWithNewType id voidTy
+ Just (AnId id') -> id'
+ other -> pprTrace "zonkIdOcc:" (ppr id) id
in
returnNF_Tc new_id
\end{code}
\begin{code}
-zonkTopBinds :: TcMonoBinds s -> NF_TcM s (TypecheckedMonoBinds, TcEnv s)
+zonkTopBinds :: TcMonoBinds -> NF_TcM (TypecheckedMonoBinds, TcEnv)
zonkTopBinds binds -- Top level is implicitly recursive
= fixNF_Tc (\ ~(_, new_ids) ->
tcExtendGlobalValEnv (bagToList new_ids) $
- zonkMonoBinds emptyTyVarEnv binds `thenNF_Tc` \ (binds', new_ids) ->
- tcGetEnv `thenNF_Tc` \ env ->
+ zonkMonoBinds binds `thenNF_Tc` \ (binds', new_ids) ->
+ tcGetEnv `thenNF_Tc` \ env ->
returnNF_Tc ((binds', env), new_ids)
) `thenNF_Tc` \ (stuff, _) ->
returnNF_Tc stuff
+zonkBinds :: TcHsBinds -> NF_TcM (TypecheckedHsBinds, TcEnv)
-zonkBinds :: TyVarEnv Type
- -> TcHsBinds s
- -> NF_TcM s (TypecheckedHsBinds, TcEnv s)
-
-zonkBinds te binds
- = go binds (\ binds' -> tcGetEnv `thenNF_Tc` \ env -> returnNF_Tc (binds', env))
+zonkBinds binds
+ = go binds (\ binds' -> tcGetEnv `thenNF_Tc` \ env ->
+ returnNF_Tc (binds', env))
where
- -- go :: TcHsBinds s -> (TypecheckedHsBinds -> NF_TcM s (TypecheckedHsBinds, TcEnv s))
- -- -> NF_TcM s (TypecheckedHsBinds, TcEnv s)
+ -- go :: TcHsBinds
+ -- -> (TypecheckedHsBinds
+ -- -> NF_TcM (TypecheckedHsBinds, TcEnv)
+ -- )
+ -- -> NF_TcM (TypecheckedHsBinds, TcEnv)
+
go (ThenBinds b1 b2) thing_inside = go b1 $ \ b1' ->
- go b2 $ \ b2' ->
+ go b2 $ \ b2' ->
thing_inside (b1' `ThenBinds` b2')
go EmptyBinds thing_inside = thing_inside EmptyBinds
= ASSERT( null sigs )
fixNF_Tc (\ ~(_, new_ids) ->
tcExtendGlobalValEnv (bagToList new_ids) $
- zonkMonoBinds te bind `thenNF_Tc` \ (new_bind, new_ids) ->
- thing_inside (MonoBind new_bind [] is_rec) `thenNF_Tc` \ stuff ->
+ zonkMonoBinds bind `thenNF_Tc` \ (new_bind, new_ids) ->
+ thing_inside (mkMonoBind new_bind [] is_rec) `thenNF_Tc` \ stuff ->
returnNF_Tc (stuff, new_ids)
- ) `thenNF_Tc` \ (stuff, _) ->
+ ) `thenNF_Tc` \ (stuff, _) ->
returnNF_Tc stuff
\end{code}
\begin{code}
-------------------------------------------------------------------------
-zonkMonoBinds :: TyVarEnv Type
- -> TcMonoBinds s
- -> NF_TcM s (TypecheckedMonoBinds, Bag Id)
+zonkMonoBinds :: TcMonoBinds
+ -> NF_TcM (TypecheckedMonoBinds, Bag Id)
-zonkMonoBinds te EmptyMonoBinds = returnNF_Tc (EmptyMonoBinds, emptyBag)
+zonkMonoBinds EmptyMonoBinds = returnNF_Tc (EmptyMonoBinds, emptyBag)
-zonkMonoBinds te (AndMonoBinds mbinds1 mbinds2)
- = zonkMonoBinds te mbinds1 `thenNF_Tc` \ (b1', ids1) ->
- zonkMonoBinds te mbinds2 `thenNF_Tc` \ (b2', ids2) ->
- returnNF_Tc (b1' `AndMonoBinds` b2', ids1 `unionBags` ids2)
+zonkMonoBinds (AndMonoBinds mbinds1 mbinds2)
+ = zonkMonoBinds mbinds1 `thenNF_Tc` \ (b1', ids1) ->
+ zonkMonoBinds mbinds2 `thenNF_Tc` \ (b2', ids2) ->
+ returnNF_Tc (b1' `AndMonoBinds` b2',
+ ids1 `unionBags` ids2)
-zonkMonoBinds te (PatMonoBind pat grhss_w_binds locn)
- = zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
- zonkGRHSsAndBinds te grhss_w_binds `thenNF_Tc` \ new_grhss_w_binds ->
- returnNF_Tc (PatMonoBind new_pat new_grhss_w_binds locn, ids)
+zonkMonoBinds (PatMonoBind pat grhss locn)
+ = zonkPat pat `thenNF_Tc` \ (new_pat, ids) ->
+ zonkGRHSs grhss `thenNF_Tc` \ new_grhss ->
+ returnNF_Tc (PatMonoBind new_pat new_grhss locn, ids)
-zonkMonoBinds te (VarMonoBind var expr)
- = zonkIdBndr te var `thenNF_Tc` \ new_var ->
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
+zonkMonoBinds (VarMonoBind var expr)
+ = zonkIdBndr var `thenNF_Tc` \ new_var ->
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (VarMonoBind new_var new_expr, unitBag new_var)
-zonkMonoBinds te (CoreMonoBind var core_expr)
- = zonkIdBndr te var `thenNF_Tc` \ new_var ->
+zonkMonoBinds (CoreMonoBind var core_expr)
+ = zonkIdBndr var `thenNF_Tc` \ new_var ->
returnNF_Tc (CoreMonoBind new_var core_expr, unitBag new_var)
-zonkMonoBinds te (FunMonoBind var inf ms locn)
- = zonkIdBndr te var `thenNF_Tc` \ new_var ->
- mapNF_Tc (zonkMatch te) ms `thenNF_Tc` \ new_ms ->
+zonkMonoBinds (FunMonoBind var inf ms locn)
+ = zonkIdBndr var `thenNF_Tc` \ new_var ->
+ mapNF_Tc zonkMatch ms `thenNF_Tc` \ new_ms ->
returnNF_Tc (FunMonoBind new_var inf new_ms locn, unitBag new_var)
-zonkMonoBinds te (AbsBinds tyvars dicts exports val_bind)
+zonkMonoBinds (AbsBinds tyvars dicts exports inlines val_bind)
= mapNF_Tc zonkTcTyVarToTyVar tyvars `thenNF_Tc` \ new_tyvars ->
- let
- new_te = extend_te te new_tyvars
- in
- mapNF_Tc (zonkIdBndr new_te) dicts `thenNF_Tc` \ new_dicts ->
+ -- No need to extend tyvar env: the effects are
+ -- propagated through binding the tyvars themselves
+ mapNF_Tc zonkIdBndr dicts `thenNF_Tc` \ new_dicts ->
tcExtendGlobalValEnv new_dicts $
+
fixNF_Tc (\ ~(_, _, val_bind_ids) ->
- tcExtendGlobalValEnv (bagToList val_bind_ids) $
- zonkMonoBinds new_te val_bind `thenNF_Tc` \ (new_val_bind, val_bind_ids) ->
- mapNF_Tc (zonkExport new_te) exports `thenNF_Tc` \ new_exports ->
- returnNF_Tc (new_val_bind, new_exports, val_bind_ids)
+ tcExtendGlobalValEnv (bagToList val_bind_ids) $
+ zonkMonoBinds val_bind `thenNF_Tc` \ (new_val_bind, val_bind_ids) ->
+ mapNF_Tc zonkExport exports `thenNF_Tc` \ new_exports ->
+ returnNF_Tc (new_val_bind, new_exports, val_bind_ids)
) `thenNF_Tc ` \ (new_val_bind, new_exports, _) ->
let
new_globals = listToBag [global | (_, global, local) <- new_exports]
in
- returnNF_Tc (AbsBinds new_tyvars new_dicts new_exports new_val_bind,
+ returnNF_Tc (AbsBinds new_tyvars new_dicts new_exports inlines new_val_bind,
new_globals)
where
- zonkExport te (tyvars, global, local)
- = mapNF_Tc zonkTcTyVarToTyVar tyvars `thenNF_Tc` \ new_tyvars ->
- zonkIdBndr te global `thenNF_Tc` \ new_global ->
- zonkIdOcc local `thenNF_Tc` \ new_local ->
+ zonkExport (tyvars, global, local)
+ = zonkTcSigTyVars tyvars `thenNF_Tc` \ new_tyvars ->
+ -- This isn't the binding occurrence of these tyvars
+ -- but they should *be* tyvars. Hence zonkTcSigTyVars.
+ zonkIdBndr global `thenNF_Tc` \ new_global ->
+ zonkIdOcc local `thenNF_Tc` \ new_local ->
returnNF_Tc (new_tyvars, new_global, new_local)
\end{code}
%************************************************************************
%* *
-\subsection[BackSubst-Match-GRHSs]{Match and GRHSsAndBinds}
+\subsection[BackSubst-Match-GRHSs]{Match and GRHSs}
%* *
%************************************************************************
\begin{code}
-zonkMatch :: TyVarEnv Type
- -> TcMatch s -> NF_TcM s TypecheckedMatch
-
-zonkMatch te (PatMatch pat match)
- = zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
- tcExtendGlobalValEnv (bagToList ids) $
- zonkMatch te match `thenNF_Tc` \ new_match ->
- returnNF_Tc (PatMatch new_pat new_match)
-
-zonkMatch te (GRHSMatch grhss_w_binds)
- = zonkGRHSsAndBinds te grhss_w_binds `thenNF_Tc` \ new_grhss_w_binds ->
- returnNF_Tc (GRHSMatch new_grhss_w_binds)
+zonkMatch :: TcMatch -> NF_TcM TypecheckedMatch
-zonkMatch te (SimpleMatch expr)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- returnNF_Tc (SimpleMatch new_expr)
+zonkMatch (Match _ pats _ grhss)
+ = zonkPats pats `thenNF_Tc` \ (new_pats, new_ids) ->
+ tcExtendGlobalValEnv (bagToList new_ids) $
+ zonkGRHSs grhss `thenNF_Tc` \ new_grhss ->
+ returnNF_Tc (Match [] new_pats Nothing new_grhss)
-------------------------------------------------------------------------
-zonkGRHSsAndBinds :: TyVarEnv Type
- -> TcGRHSsAndBinds s
- -> NF_TcM s TypecheckedGRHSsAndBinds
+zonkGRHSs :: TcGRHSs
+ -> NF_TcM TypecheckedGRHSs
-zonkGRHSsAndBinds te (GRHSsAndBindsOut grhss binds ty)
- = zonkBinds te binds `thenNF_Tc` \ (new_binds, new_env) ->
+zonkGRHSs (GRHSs grhss binds (Just ty))
+ = zonkBinds binds `thenNF_Tc` \ (new_binds, new_env) ->
tcSetEnv new_env $
let
- zonk_grhs (GRHS guard expr locn)
- = zonkStmts te guard `thenNF_Tc` \ (new_guard, new_env) ->
- tcSetEnv new_env $
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
- returnNF_Tc (GRHS new_guard new_expr locn)
+ zonk_grhs (GRHS guarded locn)
+ = zonkStmts guarded `thenNF_Tc` \ new_guarded ->
+ returnNF_Tc (GRHS new_guarded locn)
in
mapNF_Tc zonk_grhs grhss `thenNF_Tc` \ new_grhss ->
- zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- returnNF_Tc (GRHSsAndBindsOut new_grhss new_binds new_ty)
+ zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ returnNF_Tc (GRHSs new_grhss new_binds (Just new_ty))
\end{code}
%************************************************************************
%************************************************************************
\begin{code}
-zonkExpr :: TyVarEnv Type
- -> TcExpr s -> NF_TcM s TypecheckedHsExpr
+zonkExpr :: TcExpr -> NF_TcM TypecheckedHsExpr
-zonkExpr te (HsVar id)
+zonkExpr (HsVar id)
= zonkIdOcc id `thenNF_Tc` \ id' ->
returnNF_Tc (HsVar id')
-zonkExpr te (HsLit _) = panic "zonkExpr te:HsLit"
+zonkExpr (HsIPVar id)
+ = zonkIdOcc id `thenNF_Tc` \ id' ->
+ returnNF_Tc (HsIPVar id')
+
+zonkExpr (HsLit (HsRat f ty))
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ returnNF_Tc (HsLit (HsRat f new_ty))
+
+zonkExpr (HsLit (HsLitLit lit ty))
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ returnNF_Tc (HsLit (HsLitLit lit new_ty))
-zonkExpr te (HsLitOut lit ty)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- returnNF_Tc (HsLitOut lit new_ty)
+zonkExpr (HsLit lit)
+ = returnNF_Tc (HsLit lit)
-zonkExpr te (HsLam match)
- = zonkMatch te match `thenNF_Tc` \ new_match ->
+-- HsOverLit doesn't appear in typechecker output
+
+zonkExpr (HsLam match)
+ = zonkMatch match `thenNF_Tc` \ new_match ->
returnNF_Tc (HsLam new_match)
-zonkExpr te (HsApp e1 e2)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
+zonkExpr (HsApp e1 e2)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
returnNF_Tc (HsApp new_e1 new_e2)
-zonkExpr te (OpApp e1 op fixity e2)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te op `thenNF_Tc` \ new_op ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
+zonkExpr (OpApp e1 op fixity e2)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr op `thenNF_Tc` \ new_op ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
returnNF_Tc (OpApp new_e1 new_op fixity new_e2)
-zonkExpr te (NegApp _ _) = panic "zonkExpr te:NegApp"
-zonkExpr te (HsPar _) = panic "zonkExpr te:HsPar"
+zonkExpr (NegApp _ _) = panic "zonkExpr: NegApp"
+zonkExpr (HsPar _) = panic "zonkExpr: HsPar"
-zonkExpr te (SectionL expr op)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- zonkExpr te op `thenNF_Tc` \ new_op ->
+zonkExpr (SectionL expr op)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkExpr op `thenNF_Tc` \ new_op ->
returnNF_Tc (SectionL new_expr new_op)
-zonkExpr te (SectionR op expr)
- = zonkExpr te op `thenNF_Tc` \ new_op ->
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
+zonkExpr (SectionR op expr)
+ = zonkExpr op `thenNF_Tc` \ new_op ->
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (SectionR new_op new_expr)
-zonkExpr te (HsCase expr ms src_loc)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- mapNF_Tc (zonkMatch te) ms `thenNF_Tc` \ new_ms ->
+zonkExpr (HsCase expr ms src_loc)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ mapNF_Tc zonkMatch ms `thenNF_Tc` \ new_ms ->
returnNF_Tc (HsCase new_expr new_ms src_loc)
-zonkExpr te (HsIf e1 e2 e3 src_loc)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
- zonkExpr te e3 `thenNF_Tc` \ new_e3 ->
+zonkExpr (HsIf e1 e2 e3 src_loc)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
+ zonkExpr e3 `thenNF_Tc` \ new_e3 ->
returnNF_Tc (HsIf new_e1 new_e2 new_e3 src_loc)
-zonkExpr te (HsLet binds expr)
- = zonkBinds te binds `thenNF_Tc` \ (new_binds, new_env) ->
+zonkExpr (HsLet binds expr)
+ = zonkBinds binds `thenNF_Tc` \ (new_binds, new_env) ->
tcSetEnv new_env $
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (HsLet new_binds new_expr)
-zonkExpr te (HsDo _ _ _) = panic "zonkExpr te:HsDo"
-
-zonkExpr te (HsDoOut do_or_lc stmts return_id then_id zero_id ty src_loc)
- = zonkStmts te stmts `thenNF_Tc` \ (new_stmts, _) ->
- zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
+zonkExpr (HsWith expr binds)
+ = zonkIPBinds binds `thenNF_Tc` \ new_binds ->
+ tcExtendGlobalValEnv (map fst new_binds) $
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
+ returnNF_Tc (HsWith new_expr new_binds)
+ where
+ zonkIPBinds = mapNF_Tc zonkIPBind
+ zonkIPBind (n, e) =
+ zonkIdBndr n `thenNF_Tc` \ n' ->
+ zonkExpr e `thenNF_Tc` \ e' ->
+ returnNF_Tc (n', e')
+
+zonkExpr (HsDo _ _ _) = panic "zonkExpr:HsDo"
+
+zonkExpr (HsDoOut do_or_lc stmts return_id then_id zero_id ty src_loc)
+ = zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
zonkIdOcc return_id `thenNF_Tc` \ new_return_id ->
zonkIdOcc then_id `thenNF_Tc` \ new_then_id ->
zonkIdOcc zero_id `thenNF_Tc` \ new_zero_id ->
returnNF_Tc (HsDoOut do_or_lc new_stmts new_return_id new_then_id new_zero_id
new_ty src_loc)
-zonkExpr te (ExplicitList _) = panic "zonkExpr te:ExplicitList"
+zonkExpr (ExplicitList _) = panic "zonkExpr:ExplicitList"
-zonkExpr te (ExplicitListOut ty exprs)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- mapNF_Tc (zonkExpr te) exprs `thenNF_Tc` \ new_exprs ->
+zonkExpr (ExplicitListOut ty exprs)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ mapNF_Tc zonkExpr exprs `thenNF_Tc` \ new_exprs ->
returnNF_Tc (ExplicitListOut new_ty new_exprs)
-zonkExpr te (ExplicitTuple exprs)
- = mapNF_Tc (zonkExpr te) exprs `thenNF_Tc` \ new_exprs ->
- returnNF_Tc (ExplicitTuple new_exprs)
+zonkExpr (ExplicitTuple exprs boxed)
+ = mapNF_Tc zonkExpr exprs `thenNF_Tc` \ new_exprs ->
+ returnNF_Tc (ExplicitTuple new_exprs boxed)
-zonkExpr te (HsCon con_id tys exprs)
- = mapNF_Tc (zonkTcTypeToType te) tys `thenNF_Tc` \ new_tys ->
- mapNF_Tc (zonkExpr te) exprs `thenNF_Tc` \ new_exprs ->
- returnNF_Tc (HsCon con_id new_tys new_exprs)
+zonkExpr (RecordConOut data_con con_expr rbinds)
+ = zonkExpr con_expr `thenNF_Tc` \ new_con_expr ->
+ zonkRbinds rbinds `thenNF_Tc` \ new_rbinds ->
+ returnNF_Tc (RecordConOut data_con new_con_expr new_rbinds)
-zonkExpr te (RecordCon con_id con_expr rbinds)
- = zonkIdOcc con_id `thenNF_Tc` \ new_con_id ->
- zonkExpr te con_expr `thenNF_Tc` \ new_con_expr ->
- zonkRbinds te rbinds `thenNF_Tc` \ new_rbinds ->
- returnNF_Tc (RecordCon new_con_id new_con_expr new_rbinds)
+zonkExpr (RecordUpd _ _) = panic "zonkExpr:RecordUpd"
-zonkExpr te (RecordUpd _ _) = panic "zonkExpr te:RecordUpd"
-
-zonkExpr te (RecordUpdOut expr ty dicts rbinds)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
+zonkExpr (RecordUpdOut expr ty dicts rbinds)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
mapNF_Tc zonkIdOcc dicts `thenNF_Tc` \ new_dicts ->
- zonkRbinds te rbinds `thenNF_Tc` \ new_rbinds ->
+ zonkRbinds rbinds `thenNF_Tc` \ new_rbinds ->
returnNF_Tc (RecordUpdOut new_expr new_ty new_dicts new_rbinds)
-zonkExpr te (ExprWithTySig _ _) = panic "zonkExpr te:ExprWithTySig"
-zonkExpr te (ArithSeqIn _) = panic "zonkExpr te:ArithSeqIn"
+zonkExpr (ExprWithTySig _ _) = panic "zonkExpr:ExprWithTySig"
+zonkExpr (ArithSeqIn _) = panic "zonkExpr:ArithSeqIn"
-zonkExpr te (ArithSeqOut expr info)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- zonkArithSeq te info `thenNF_Tc` \ new_info ->
+zonkExpr (ArithSeqOut expr info)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkArithSeq info `thenNF_Tc` \ new_info ->
returnNF_Tc (ArithSeqOut new_expr new_info)
-zonkExpr te (CCall fun args may_gc is_casm result_ty)
- = mapNF_Tc (zonkExpr te) args `thenNF_Tc` \ new_args ->
- zonkTcTypeToType te result_ty `thenNF_Tc` \ new_result_ty ->
- returnNF_Tc (CCall fun new_args may_gc is_casm new_result_ty)
+zonkExpr (HsCCall fun args may_gc is_casm result_ty)
+ = mapNF_Tc zonkExpr args `thenNF_Tc` \ new_args ->
+ zonkTcTypeToType result_ty `thenNF_Tc` \ new_result_ty ->
+ returnNF_Tc (HsCCall fun new_args may_gc is_casm new_result_ty)
-zonkExpr te (HsSCC label expr)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- returnNF_Tc (HsSCC label new_expr)
+zonkExpr (HsSCC lbl expr)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ returnNF_Tc (HsSCC lbl new_expr)
-zonkExpr te (TyLam tyvars expr)
+zonkExpr (TyLam tyvars expr)
= mapNF_Tc zonkTcTyVarToTyVar tyvars `thenNF_Tc` \ new_tyvars ->
- let
- new_te = extend_te te new_tyvars
- in
- zonkExpr new_te expr `thenNF_Tc` \ new_expr ->
+ -- No need to extend tyvar env; see AbsBinds
+
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (TyLam new_tyvars new_expr)
-zonkExpr te (TyApp expr tys)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- mapNF_Tc (zonkTcTypeToType te) tys `thenNF_Tc` \ new_tys ->
+zonkExpr (TyApp expr tys)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ mapNF_Tc zonkTcTypeToType tys `thenNF_Tc` \ new_tys ->
returnNF_Tc (TyApp new_expr new_tys)
-zonkExpr te (DictLam dicts expr)
- = mapNF_Tc (zonkIdBndr te) dicts `thenNF_Tc` \ new_dicts ->
+zonkExpr (DictLam dicts expr)
+ = mapNF_Tc zonkIdBndr dicts `thenNF_Tc` \ new_dicts ->
tcExtendGlobalValEnv new_dicts $
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (DictLam new_dicts new_expr)
-zonkExpr te (DictApp expr dicts)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
+zonkExpr (DictApp expr dicts)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
mapNF_Tc zonkIdOcc dicts `thenNF_Tc` \ new_dicts ->
returnNF_Tc (DictApp new_expr new_dicts)
-------------------------------------------------------------------------
-zonkArithSeq :: TyVarEnv Type
- -> TcArithSeqInfo s -> NF_TcM s TypecheckedArithSeqInfo
+zonkArithSeq :: TcArithSeqInfo -> NF_TcM TypecheckedArithSeqInfo
-zonkArithSeq te (From e)
- = zonkExpr te e `thenNF_Tc` \ new_e ->
+zonkArithSeq (From e)
+ = zonkExpr e `thenNF_Tc` \ new_e ->
returnNF_Tc (From new_e)
-zonkArithSeq te (FromThen e1 e2)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
+zonkArithSeq (FromThen e1 e2)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
returnNF_Tc (FromThen new_e1 new_e2)
-zonkArithSeq te (FromTo e1 e2)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
+zonkArithSeq (FromTo e1 e2)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
returnNF_Tc (FromTo new_e1 new_e2)
-zonkArithSeq te (FromThenTo e1 e2 e3)
- = zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
- zonkExpr te e3 `thenNF_Tc` \ new_e3 ->
+zonkArithSeq (FromThenTo e1 e2 e3)
+ = zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
+ zonkExpr e3 `thenNF_Tc` \ new_e3 ->
returnNF_Tc (FromThenTo new_e1 new_e2 new_e3)
-------------------------------------------------------------------------
-zonkStmts :: TyVarEnv Type
- -> [TcStmt s] -> NF_TcM s ([TypecheckedStmt], TcEnv s)
-
-zonkStmts te [] = tcGetEnv `thenNF_Tc` \ env ->
- returnNF_Tc ([], env)
-
-zonkStmts te [ReturnStmt expr]
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- tcGetEnv `thenNF_Tc` \ env ->
- returnNF_Tc ([ReturnStmt new_expr], env)
-
-zonkStmts te (ExprStmt expr locn : stmts)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- zonkStmts te stmts `thenNF_Tc` \ (new_stmts, new_env) ->
- returnNF_Tc (ExprStmt new_expr locn : new_stmts, new_env)
-
-zonkStmts te (GuardStmt expr locn : stmts)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
- zonkStmts te stmts `thenNF_Tc` \ (new_stmts, new_env) ->
- returnNF_Tc (GuardStmt new_expr locn : new_stmts, new_env)
-
-zonkStmts te (LetStmt binds : stmts)
- = zonkBinds te binds `thenNF_Tc` \ (new_binds, new_env) ->
+zonkStmts :: [TcStmt]
+ -> NF_TcM [TypecheckedStmt]
+
+zonkStmts [] = returnNF_Tc []
+
+zonkStmts (ParStmtOut bndrstmtss : stmts)
+ = mapNF_Tc (mapNF_Tc zonkId) bndrss `thenNF_Tc` \ new_bndrss ->
+ let new_binders = concat new_bndrss in
+ mapNF_Tc zonkStmts stmtss `thenNF_Tc` \ new_stmtss ->
+ tcExtendGlobalValEnv new_binders $
+ zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ returnNF_Tc (ParStmtOut (zip new_bndrss new_stmtss) : new_stmts)
+ where (bndrss, stmtss) = unzip bndrstmtss
+
+zonkStmts [ReturnStmt expr]
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ returnNF_Tc [ReturnStmt new_expr]
+
+zonkStmts (ExprStmt expr locn : stmts)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ returnNF_Tc (ExprStmt new_expr locn : new_stmts)
+
+zonkStmts (GuardStmt expr locn : stmts)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ returnNF_Tc (GuardStmt new_expr locn : new_stmts)
+
+zonkStmts (LetStmt binds : stmts)
+ = zonkBinds binds `thenNF_Tc` \ (new_binds, new_env) ->
tcSetEnv new_env $
- zonkStmts te stmts `thenNF_Tc` \ (new_stmts, new_env2) ->
- returnNF_Tc (LetStmt new_binds : new_stmts, new_env2)
+ zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ returnNF_Tc (LetStmt new_binds : new_stmts)
-zonkStmts te (BindStmt pat expr locn : stmts)
- = zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
- tcExtendGlobalValEnv (bagToList ids) $
- zonkStmts te stmts `thenNF_Tc` \ (new_stmts, new_env) ->
- returnNF_Tc (BindStmt new_pat new_expr locn : new_stmts, new_env)
+zonkStmts (BindStmt pat expr locn : stmts)
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
+ zonkPat pat `thenNF_Tc` \ (new_pat, new_ids) ->
+ tcExtendGlobalValEnv (bagToList new_ids) $
+ zonkStmts stmts `thenNF_Tc` \ new_stmts ->
+ returnNF_Tc (BindStmt new_pat new_expr locn : new_stmts)
-------------------------------------------------------------------------
-zonkRbinds :: TyVarEnv Type
- -> TcRecordBinds s -> NF_TcM s TypecheckedRecordBinds
+zonkRbinds :: TcRecordBinds -> NF_TcM TypecheckedRecordBinds
-zonkRbinds te rbinds
+zonkRbinds rbinds
= mapNF_Tc zonk_rbind rbinds
where
zonk_rbind (field, expr, pun)
- = zonkExpr te expr `thenNF_Tc` \ new_expr ->
+ = zonkExpr expr `thenNF_Tc` \ new_expr ->
zonkIdOcc field `thenNF_Tc` \ new_field ->
returnNF_Tc (new_field, new_expr, pun)
\end{code}
%************************************************************************
\begin{code}
-zonkPat :: TyVarEnv Type
- -> TcPat s -> NF_TcM s (TypecheckedPat, Bag Id)
+zonkPat :: TcPat -> NF_TcM (TypecheckedPat, Bag Id)
-zonkPat te (WildPat ty)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
+zonkPat (WildPat ty)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
returnNF_Tc (WildPat new_ty, emptyBag)
-zonkPat te (VarPat v)
- = zonkIdBndr te v `thenNF_Tc` \ new_v ->
+zonkPat (VarPat v)
+ = zonkIdBndr v `thenNF_Tc` \ new_v ->
returnNF_Tc (VarPat new_v, unitBag new_v)
-zonkPat te (LazyPat pat)
- = zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
+zonkPat (LazyPat pat)
+ = zonkPat pat `thenNF_Tc` \ (new_pat, ids) ->
returnNF_Tc (LazyPat new_pat, ids)
-zonkPat te (AsPat n pat)
- = zonkIdBndr te n `thenNF_Tc` \ new_n ->
- zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
+zonkPat (AsPat n pat)
+ = zonkIdBndr n `thenNF_Tc` \ new_n ->
+ zonkPat pat `thenNF_Tc` \ (new_pat, ids) ->
returnNF_Tc (AsPat new_n new_pat, new_n `consBag` ids)
-zonkPat te (ConPat n ty pats)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- zonkPats te pats `thenNF_Tc` \ (new_pats, ids) ->
- returnNF_Tc (ConPat n new_ty new_pats, ids)
-
-zonkPat te (ConOpPat pat1 op pat2 ty)
- = zonkPat te pat1 `thenNF_Tc` \ (new_pat1, ids1) ->
- zonkPat te pat2 `thenNF_Tc` \ (new_pat2, ids2) ->
- zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- returnNF_Tc (ConOpPat new_pat1 op new_pat2 new_ty, ids1 `unionBags` ids2)
-
-zonkPat te (ListPat ty pats)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- zonkPats te pats `thenNF_Tc` \ (new_pats, ids) ->
+zonkPat (ListPat ty pats)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ zonkPats pats `thenNF_Tc` \ (new_pats, ids) ->
returnNF_Tc (ListPat new_ty new_pats, ids)
-zonkPat te (TuplePat pats)
- = zonkPats te pats `thenNF_Tc` \ (new_pats, ids) ->
- returnNF_Tc (TuplePat new_pats, ids)
+zonkPat (TuplePat pats boxed)
+ = zonkPats pats `thenNF_Tc` \ (new_pats, ids) ->
+ returnNF_Tc (TuplePat new_pats boxed, ids)
-zonkPat te (RecPat n ty rpats)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
+zonkPat (ConPat n ty tvs dicts pats)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ mapNF_Tc zonkTcTyVarToTyVar tvs `thenNF_Tc` \ new_tvs ->
+ mapNF_Tc zonkIdBndr dicts `thenNF_Tc` \ new_dicts ->
+ tcExtendGlobalValEnv new_dicts $
+ zonkPats pats `thenNF_Tc` \ (new_pats, ids) ->
+ returnNF_Tc (ConPat n new_ty new_tvs new_dicts new_pats,
+ listToBag new_dicts `unionBags` ids)
+
+zonkPat (RecPat n ty tvs dicts rpats)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ mapNF_Tc zonkTcTyVarToTyVar tvs `thenNF_Tc` \ new_tvs ->
+ mapNF_Tc zonkIdBndr dicts `thenNF_Tc` \ new_dicts ->
+ tcExtendGlobalValEnv new_dicts $
mapAndUnzipNF_Tc zonk_rpat rpats `thenNF_Tc` \ (new_rpats, ids_s) ->
- returnNF_Tc (RecPat n new_ty new_rpats, unionManyBags ids_s)
+ returnNF_Tc (RecPat n new_ty new_tvs new_dicts new_rpats,
+ listToBag new_dicts `unionBags` unionManyBags ids_s)
where
zonk_rpat (f, pat, pun)
- = zonkPat te pat `thenNF_Tc` \ (new_pat, ids) ->
+ = zonkPat pat `thenNF_Tc` \ (new_pat, ids) ->
returnNF_Tc ((f, new_pat, pun), ids)
-zonkPat te (LitPat lit ty)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
+zonkPat (LitPat lit ty)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
returnNF_Tc (LitPat lit new_ty, emptyBag)
-zonkPat te (NPat lit ty expr)
- = zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- zonkExpr te expr `thenNF_Tc` \ new_expr ->
+zonkPat (NPat lit ty expr)
+ = zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ zonkExpr expr `thenNF_Tc` \ new_expr ->
returnNF_Tc (NPat lit new_ty new_expr, emptyBag)
-zonkPat te (NPlusKPat n k ty e1 e2)
- = zonkIdBndr te n `thenNF_Tc` \ new_n ->
- zonkTcTypeToType te ty `thenNF_Tc` \ new_ty ->
- zonkExpr te e1 `thenNF_Tc` \ new_e1 ->
- zonkExpr te e2 `thenNF_Tc` \ new_e2 ->
+zonkPat (NPlusKPat n k ty e1 e2)
+ = zonkIdBndr n `thenNF_Tc` \ new_n ->
+ zonkTcTypeToType ty `thenNF_Tc` \ new_ty ->
+ zonkExpr e1 `thenNF_Tc` \ new_e1 ->
+ zonkExpr e2 `thenNF_Tc` \ new_e2 ->
returnNF_Tc (NPlusKPat new_n k new_ty new_e1 new_e2, unitBag new_n)
-zonkPat te (DictPat ds ms)
- = mapNF_Tc (zonkIdBndr te) ds `thenNF_Tc` \ new_ds ->
- mapNF_Tc (zonkIdBndr te) ms `thenNF_Tc` \ new_ms ->
- returnNF_Tc (DictPat new_ds new_ms,
+zonkPat (DictPat ds ms)
+ = mapNF_Tc zonkIdBndr ds `thenNF_Tc` \ new_ds ->
+ mapNF_Tc zonkIdBndr ms `thenNF_Tc` \ new_ms ->
+ returnNF_Tc (DictPat new_ds new_ms,
listToBag new_ds `unionBags` listToBag new_ms)
-zonkPats te []
+zonkPats []
= returnNF_Tc ([], emptyBag)
-zonkPats te (pat:pats)
- = zonkPat te pat `thenNF_Tc` \ (pat', ids1) ->
- zonkPats te pats `thenNF_Tc` \ (pats', ids2) ->
+
+zonkPats (pat:pats)
+ = zonkPat pat `thenNF_Tc` \ (pat', ids1) ->
+ zonkPats pats `thenNF_Tc` \ (pats', ids2) ->
returnNF_Tc (pat':pats', ids1 `unionBags` ids2)
\end{code}
+%************************************************************************
+%* *
+\subsection[BackSubst-Foreign]{Foreign exports}
+%* *
+%************************************************************************
+
+\begin{code}
+zonkForeignExports :: [TcForeignExportDecl] -> NF_TcM [TypecheckedForeignDecl]
+zonkForeignExports ls = mapNF_Tc zonkForeignExport ls
+
+zonkForeignExport :: TcForeignExportDecl -> NF_TcM (TypecheckedForeignDecl)
+zonkForeignExport (ForeignDecl i imp_exp hs_ty ext_nm cconv src_loc) =
+ zonkIdOcc i `thenNF_Tc` \ i' ->
+ returnNF_Tc (ForeignDecl i' imp_exp undefined ext_nm cconv src_loc)
+\end{code}
+
+\begin{code}
+zonkRules :: [TcRuleDecl] -> NF_TcM [TypecheckedRuleDecl]
+zonkRules rs = mapNF_Tc zonkRule rs
+
+zonkRule (HsRule name tyvars vars lhs rhs loc)
+ = mapNF_Tc zonkTcTyVarToTyVar tyvars `thenNF_Tc` \ new_tyvars ->
+ mapNF_Tc zonkIdBndr [v | RuleBndr v <- vars] `thenNF_Tc` \ new_bndrs ->
+ tcExtendGlobalValEnv new_bndrs $
+ zonkExpr lhs `thenNF_Tc` \ new_lhs ->
+ zonkExpr rhs `thenNF_Tc` \ new_rhs ->
+ returnNF_Tc (HsRule name new_tyvars (map RuleBndr new_bndrs) new_lhs new_rhs loc)
+ -- I hate this map RuleBndr stuff
+
+zonkRule (IfaceRuleOut fun rule)
+ = zonkIdOcc fun `thenNF_Tc` \ fun' ->
+ returnNF_Tc (IfaceRuleOut fun' rule)
+\end{code}
projects / ghc-hetmet.git / blobdiff