import TcMonad
import TcMonoType ( tcHsType, tcHsTypeKind )
import TcEnv ( tcLookupGlobalValue, tcExtendTyVarEnv, tcExtendGlobalValEnv,
- tcLookupTyConByKey, tcLookupGlobalValueMaybe, tcLookupLocalValue
+ tcLookupTyConByKey, tcLookupGlobalValueMaybe, tcLookupLocalValue,
+ tcExplicitLookupGlobal
)
import TcKind ( TcKind, kindToTcKind )
Fake, InPat, HsType )
import RnHsSyn ( RenamedHsDecl(..) )
import HsCore
-import HsDecls ( HsIdInfo(..) )
+import HsDecls ( HsIdInfo(..), HsStrictnessInfo(..) )
import Literal ( Literal(..) )
import CoreSyn
import CoreUtils ( coreExprType )
import Id ( GenId, mkImported, mkUserId, addInlinePragma,
isPrimitiveId_maybe, dataConArgTys, SYN_IE(Id) )
import Type ( mkSynTy, getAppDataTyConExpandingDicts )
-import TyVar ( mkTyVar )
+import TyVar ( mkSysTyVar )
import Name ( Name )
-import Unique ( rationalTyConKey )
+import Unique ( rationalTyConKey, uniqueOf )
import TysWiredIn ( integerTy )
import PragmaInfo ( PragmaInfo(..) )
import ErrUtils ( pprBagOfErrors )
signatures.
\begin{code}
-tcInterfaceSigs :: [RenamedHsDecl] -> TcM s [Id]
- -- Ignore non-sig-decls in these decls
-
-tcInterfaceSigs (SigD (IfaceSig name ty id_infos src_loc) : rest)
- = tcAddSrcLoc src_loc $
- tcAddErrCtxt (ifaceSigCtxt name) $
- tcHsType ty `thenTc` \ sigma_ty ->
- tcIdInfo name sigma_ty noIdInfo id_infos `thenTc` \ id_info' ->
- let
- imp_id = mkImported name sigma_ty id_info'
- sig_id | any inline_please id_infos = addInlinePragma imp_id
- | otherwise = imp_id
+tcInterfaceSigs :: TcEnv s -- Envt to use when checking unfoldings
+ -> [RenamedHsDecl] -- Ignore non-sig-decls in these decls
+ -> TcM s [Id]
+
+
+tcInterfaceSigs unf_env (SigD (IfaceSig name ty id_infos src_loc) : rest)
+ = tcAddSrcLoc src_loc (
+ tcAddErrCtxt (ifaceSigCtxt name) (
+ tcHsType ty `thenTc` \ sigma_ty ->
+ tcIdInfo unf_env name sigma_ty noIdInfo id_infos `thenTc` \ id_info' ->
+ let
+ imp_id = mkImported name sigma_ty id_info'
+ sig_id | any inline_please id_infos = addInlinePragma imp_id
+ | otherwise = imp_id
- inline_please (HsUnfold inline _) = inline
- inline_please other = False
- in
- tcInterfaceSigs rest `thenTc` \ sig_ids ->
+ inline_please (HsUnfold inline _) = inline
+ inline_please other = False
+ in
+ returnTc sig_id
+ )) `thenTc` \ sig_id ->
+ tcInterfaceSigs unf_env rest `thenTc` \ sig_ids ->
returnTc (sig_id : sig_ids)
-tcInterfaceSigs (other_decl : rest) = tcInterfaceSigs rest
+tcInterfaceSigs unf_env (other_decl : rest) = tcInterfaceSigs unf_env rest
-tcInterfaceSigs [] = returnTc []
+tcInterfaceSigs unf_env [] = returnTc []
\end{code}
\begin{code}
-tcIdInfo name ty info [] = returnTc info
-
-tcIdInfo name ty info (HsArity arity : rest)
- = tcIdInfo name ty (info `addArityInfo` arity) rest
-
-tcIdInfo name ty info (HsUpdate upd : rest)
- = tcIdInfo name ty (info `addUpdateInfo` upd) rest
-
-tcIdInfo name ty info (HsFBType fb : rest)
- = tcIdInfo name ty (info `addFBTypeInfo` fb) rest
-
-tcIdInfo name ty info (HsArgUsage au : rest)
- = tcIdInfo name ty (info `addArgUsageInfo` au) rest
-
-tcIdInfo name ty info (HsDeforest df : rest)
- = tcIdInfo name ty (info `addDeforestInfo` df) rest
-
-tcIdInfo name ty info (HsUnfold inline expr : rest)
- = tcUnfolding name expr `thenNF_Tc` \ unfold_info ->
- tcIdInfo name ty (info `addUnfoldInfo` unfold_info) rest
-
-tcIdInfo name ty info (HsStrictness strict : rest)
- = tcStrictness ty info strict `thenTc` \ info' ->
- tcIdInfo name ty info' rest
+tcIdInfo unf_env name ty info info_ins
+ = go noIdInfo info_ins
+ where
+ go info_so_far [] = returnTc info_so_far
+ go info (HsArity arity : rest) = go (info `addArityInfo` arity) rest
+ go info (HsUpdate upd : rest) = go (info `addUpdateInfo` upd) rest
+ go info (HsFBType fb : rest) = go (info `addFBTypeInfo` fb) rest
+ go info (HsArgUsage au : rest) = go (info `addArgUsageInfo` au) rest
+ go info (HsDeforest df : rest) = go (info `addDeforestInfo` df) rest
+
+ go info (HsUnfold inline expr : rest) = tcUnfolding unf_env name expr `thenNF_Tc` \ unfold_info ->
+ go (info `addUnfoldInfo` unfold_info) rest
+
+ go info (HsStrictness strict : rest) = tcStrictness unf_env ty info strict `thenTc` \ info' ->
+ go info' rest
\end{code}
\begin{code}
-tcStrictness ty info (StrictnessInfo demands maybe_worker)
- = tcWorker maybe_worker `thenNF_Tc` \ maybe_worker_id ->
+tcStrictness unf_env ty info (HsStrictnessInfo demands maybe_worker)
+ = tcWorker unf_env maybe_worker `thenNF_Tc` \ maybe_worker_id ->
uniqSMToTcM (mkWrapper ty demands) `thenNF_Tc` \ wrap_fn ->
let
-- Watch out! We can't pull on maybe_worker_id too eagerly!
info' = case maybe_worker_id of
- Just (worker_id,_) -> info `addUnfoldInfo` mkUnfolding NoPragmaInfo (wrap_fn worker_id)
- Nothing -> info
+ Just worker_id -> info `addUnfoldInfo` mkUnfolding NoPragmaInfo (wrap_fn worker_id)
+ Nothing -> info
+ has_worker = maybeToBool maybe_worker_id
in
- returnTc (info' `addStrictnessInfo` StrictnessInfo demands maybe_worker_id)
+ returnTc (info' `addStrictnessInfo` StrictnessInfo demands has_worker)
-- Boring to write these out, but the result type differs from the arg type...
-tcStrictness ty info BottomGuaranteed
+tcStrictness unf_env ty info HsBottom
= returnTc (info `addStrictnessInfo` BottomGuaranteed)
-tcStrictness ty info NoStrictnessInfo
- = returnTc info
\end{code}
\begin{code}
-tcWorker Nothing = returnNF_Tc Nothing
+tcWorker unf_env Nothing = returnNF_Tc Nothing
-tcWorker (Just (worker_name,_))
- = tcLookupGlobalValueMaybe worker_name `thenNF_Tc` \ maybe_worker_id ->
- returnNF_Tc (trace_maybe maybe_worker_id)
+tcWorker unf_env (Just (worker_name,_))
+ = returnNF_Tc (trace_maybe maybe_worker_id)
where
+ maybe_worker_id = tcExplicitLookupGlobal unf_env worker_name
+
-- The trace is so we can see what's getting dropped
trace_maybe Nothing = pprTrace "tcWorker failed:" (ppr PprDebug worker_name) Nothing
- trace_maybe (Just x) = Just (x, [])
+ trace_maybe (Just x) = Just x
\end{code}
For unfoldings we try to do the job lazily, so that we never type check
an unfolding that isn't going to be looked at.
\begin{code}
-tcUnfolding name core_expr
+tcUnfolding unf_env name core_expr
= forkNF_Tc (
recoverNF_Tc no_unfolding (
+ tcSetEnv unf_env $
tcCoreExpr core_expr `thenTc` \ core_expr' ->
returnTc (mkUnfolding NoPragmaInfo core_expr')
))
tcCoreLamBndr (UfTyBinder name kind) thing_inside
= let
- tyvar = mkTyVar name kind
+ tyvar = mkSysTyVar (uniqueOf name) kind
in
tcExtendTyVarEnv [name] [(kindToTcKind kind, tyvar)] $
thing_inside (TyBinder tyvar)
projects / ghc-hetmet.git / blobdiff