#include "HsVersions.h"
import HsSyn ( HsDecl(..), ForeignDecl(..), HsExpr(..),
- ExtName(..), isDynamic, MonoBinds(..),
+ ExtName(Dynamic), isDynamicExtName, MonoBinds(..),
OutPat(..), ForKind(..)
)
import RnHsSyn ( RenamedHsDecl, RenamedForeignDecl )
import TcMonad
import TcEnv ( newLocalId )
-import TcType ( tcInstTcType, typeToTcType, tcSplitRhoTy, zonkTcTypeToType )
-import TcMonoType ( tcHsType )
+import TcType ( typeToTcType, tcSplitRhoTy, zonkTcTypeToType )
+import TcMonoType ( tcHsTopBoxedType )
import TcHsSyn ( TcMonoBinds, TypecheckedForeignDecl,
TcForeignExportDecl )
import TcExpr ( tcId, tcPolyExpr )
import CoreSyn
import ErrUtils ( Message )
-import Id ( Id, idName, mkUserId )
+import Id ( Id, idName, mkVanillaId )
import Name ( nameOccName )
import Type ( splitFunTys
, splitTyConApp_maybe
-- exports a binding
isForeignExport :: ForeignDecl name -> Bool
-isForeignExport (ForeignDecl _ FoExport _ ext_nm _ _) = not (isDynamic ext_nm)
+isForeignExport (ForeignDecl _ FoExport _ ext_nm _ _) = not (isDynamicExtName ext_nm)
isForeignExport _ = False
\end{code}
tcFImport fo@(ForeignDecl nm FoExport hs_ty Dynamic cconv src_loc) =
tcAddSrcLoc src_loc $
tcAddErrCtxt (foreignDeclCtxt fo) $
- tcHsType hs_ty `thenTc` \ sig_ty ->
+ tcHsTopBoxedType hs_ty `thenTc` \ sig_ty ->
let
-- drop the foralls before inspecting the structure
-- of the foreign type.
case splitFunTys t_ty of
(arg_tys, res_ty) ->
checkForeignExport True t_ty arg_tys res_ty `thenTc_`
- let i = (mkUserId nm sig_ty) in
+ let i = (mkVanillaId nm sig_ty) in
returnTc (i, (ForeignDecl i FoExport undefined Dynamic cconv src_loc))
tcFImport fo@(ForeignDecl nm FoLabel hs_ty ext_nm cconv src_loc) =
tcAddSrcLoc src_loc $
tcAddErrCtxt (foreignDeclCtxt fo) $
- tcHsType hs_ty `thenTc` \ sig_ty ->
+ tcHsTopBoxedType hs_ty `thenTc` \ sig_ty ->
let
-- drop the foralls before inspecting the structure
-- of the foreign type.
(_, t_ty) = splitForAllTys sig_ty
in
check (isAddrTy t_ty) (illegalForeignTyErr False{-result-} sig_ty) `thenTc_`
- let i = (mkUserId nm sig_ty) in
+ let i = (mkVanillaId nm sig_ty) in
returnTc (i, (ForeignDecl i FoLabel undefined ext_nm cconv src_loc))
-tcFImport fo@(ForeignDecl nm imp_exp hs_ty ext_nm cconv src_loc) =
+tcFImport fo@(ForeignDecl nm imp_exp@(FoImport isUnsafe) hs_ty ext_nm cconv src_loc) =
tcAddSrcLoc src_loc $
tcAddErrCtxt (foreignDeclCtxt fo) $
- tcHsType hs_ty `thenTc` \ ty ->
+ tcHsTopBoxedType hs_ty `thenTc` \ ty ->
-- Check that the type has the right shape
-- and that the argument and result types are acceptable.
let
in
case splitFunTys t_ty of
(arg_tys, res_ty) ->
- checkForeignImport (isDynamic ext_nm) ty arg_tys res_ty `thenTc_`
- let i = (mkUserId nm ty) in
+ checkForeignImport (isDynamicExtName ext_nm) (not isUnsafe) ty arg_tys res_ty `thenTc_`
+ let i = (mkVanillaId nm ty) in
returnTc (i, (ForeignDecl i imp_exp undefined ext_nm cconv src_loc))
tcFExport :: RenamedForeignDecl -> TcM s (LIE, TcMonoBinds, TcForeignExportDecl)
tcAddSrcLoc src_loc $
tcAddErrCtxt (foreignDeclCtxt fo) $
- tcHsType hs_ty `thenTc` \ sig_ty ->
+ tcHsTopBoxedType hs_ty `thenTc` \ sig_ty ->
let sig_tc_ty = typeToTcType sig_ty in
tcPolyExpr (HsVar nm) sig_tc_ty `thenTc` \ (rhs, lie, _, _, _) ->
-- than its declared/inferred type. Hence the need
-- to create a local binding which will call the exported function
-- at a particular type (and, maybe, overloading).
- newLocalId (nameOccName nm) sig_tc_ty `thenNF_Tc` \ i ->
+ newLocalId (nameOccName nm) sig_tc_ty src_loc `thenNF_Tc` \ i ->
let
bind = VarMonoBind i rhs
in
\begin{code}
-checkForeignImport :: Bool -> Type -> [Type] -> Type -> TcM s ()
-checkForeignImport is_dynamic ty args res
+checkForeignImport :: Bool -> Bool -> Type -> [Type] -> Type -> TcM s ()
+checkForeignImport is_dynamic is_safe ty args res
| is_dynamic =
-- * first arg has got to be an Addr
case args of
[] -> check False (illegalForeignTyErr True{-Arg-} ty)
(x:xs) ->
check (isAddrTy x) (illegalForeignTyErr True{-Arg-} ty) `thenTc_`
- mapTc (checkForeignArg isFFIArgumentTy) xs `thenTc_`
+ mapTc (checkForeignArg (isFFIArgumentTy is_safe)) xs `thenTc_`
checkForeignRes (isFFIResultTy) res
| otherwise =
- mapTc (checkForeignArg isFFIArgumentTy) args `thenTc_`
+ mapTc (checkForeignArg (isFFIArgumentTy is_safe)) args `thenTc_`
checkForeignRes (isFFIResultTy) res
checkForeignExport :: Bool -> Type -> [Type] -> Type -> TcM s ()