import RnHsSyn
import RnMonad
import RnExpr ( rnMatch, rnGRHSs, rnPat, checkPrecMatch )
-import RnEnv ( bindLocatedLocalsRn, lookupBndrRn, lookupOccRn, lookupGlobalOccRn,
- isUnboundName, warnUnusedLocalBinds,
- FreeVars, emptyFVs, plusFV, plusFVs, unitFV,
- failUnboundNameErrRn
+import RnEnv ( bindLocatedLocalsRn, lookupBndrRn, lookupGlobalOccRn,
+ warnUnusedLocalBinds, mapFvRn,
+ FreeVars, emptyFVs, plusFV, plusFVs, unitFV, addOneFV,
+ unknownNameErr
)
import CmdLineOpts ( opt_WarnMissingSigs )
import Digraph ( stronglyConnComp, SCC(..) )
import List ( partition )
import ListSetOps ( minusList )
import Bag ( bagToList )
-import FiniteMap ( emptyFM, addListToFM, lookupFM )
+import FiniteMap ( lookupFM, listToFM )
import Maybe ( isJust )
import Outputable
\end{code}
contains bindings for the binders of this particular binding.
\begin{code}
-rnTopBinds :: RdrNameHsBinds -> RnMS s (RenamedHsBinds, FreeVars)
+rnTopBinds :: RdrNameHsBinds -> RnMS (RenamedHsBinds, FreeVars)
rnTopBinds EmptyBinds = returnRn (EmptyBinds, emptyFVs)
rnTopBinds (MonoBind bind sigs _) = rnTopMonoBinds bind sigs
rnTopMonoBinds mbinds sigs
= mapRn lookupBndrRn binder_rdr_names `thenRn` \ binder_names ->
let
- binder_set = mkNameSet binder_names
-
- binder_occ_fm = addListToFM emptyFM (map (\ x -> (nameOccName x,x)) binder_names)
-
- -- the names appearing in the sigs have to be bound by
- -- this group's binders.
- lookup_occ_rn_sig rdr_name =
- case lookupFM binder_occ_fm (rdrNameOcc rdr_name) of
- Nothing -> failUnboundNameErrRn rdr_name
- Just x -> returnRn x
+ binder_set = mkNameSet binder_names
+ binder_occ_fm = listToFM [(nameOccName x,x) | x <- binder_names]
in
- renameSigs opt_WarnMissingSigs binder_set lookup_occ_rn_sig sigs
- `thenRn` \ (siglist, sig_fvs) ->
- rn_mono_binds siglist mbinds `thenRn` \ (final_binds, bind_fvs) ->
+ renameSigs opt_WarnMissingSigs binder_set
+ (lookupSigOccRn binder_occ_fm) sigs `thenRn` \ (siglist, sig_fvs) ->
+ rn_mono_binds siglist mbinds `thenRn` \ (final_binds, bind_fvs) ->
returnRn (final_binds, bind_fvs `plusFV` sig_fvs)
where
binder_rdr_names = map fst (bagToList (collectMonoBinders mbinds))
+
+-- the names appearing in the sigs have to be bound by
+-- this group's binders.
+lookupSigOccRn binder_occ_fm rdr_name
+ = case lookupFM binder_occ_fm (rdrNameOcc rdr_name) of
+ Nothing -> failWithRn (mkUnboundName rdr_name)
+ (unknownNameErr rdr_name)
+ Just x -> returnRn x
\end{code}
%************************************************************************
\begin{code}
rnBinds :: RdrNameHsBinds
- -> (RenamedHsBinds -> RnMS s (result, FreeVars))
- -> RnMS s (result, FreeVars)
+ -> (RenamedHsBinds -> RnMS (result, FreeVars))
+ -> RnMS (result, FreeVars)
rnBinds EmptyBinds thing_inside = thing_inside EmptyBinds
rnBinds (MonoBind bind sigs _) thing_inside = rnMonoBinds bind sigs thing_inside
rnMonoBinds :: RdrNameMonoBinds
-> [RdrNameSig]
- -> (RenamedHsBinds -> RnMS s (result, FreeVars))
- -> RnMS s (result, FreeVars)
+ -> (RenamedHsBinds -> RnMS (result, FreeVars))
+ -> RnMS (result, FreeVars)
rnMonoBinds EmptyMonoBinds sigs thing_inside = thing_inside EmptyBinds
isJust (lookupFM binder_occ_fm (rdrNameOcc name))
forLocalBind _ = True
- binder_occ_fm = addListToFM emptyFM (map (\ x -> (nameOccName x,x)) new_mbinders)
+ binder_occ_fm = listToFM [(nameOccName x,x) | x <- new_mbinders]
- -- the names appearing in the sigs have to be bound by
- -- this group's binders.
- lookup_occ_rn_sig rdr_name =
- case lookupFM binder_occ_fm (rdrNameOcc rdr_name) of
- Nothing -> failUnboundNameErrRn rdr_name
- Just x -> returnRn x
in
- --
-- Report the fixity declarations in this group that
-- don't refer to any of the group's binders.
--
mapRn_ (unknownSigErr) fixes_not_for_me `thenRn_`
- renameSigs False binder_set lookup_occ_rn_sig sigs_for_me
- `thenRn` \ (siglist, sig_fvs) ->
+ renameSigs False binder_set
+ (lookupSigOccRn binder_occ_fm) sigs_for_me `thenRn` \ (siglist, sig_fvs) ->
let
fixity_sigs = [(name,sig) | FixSig sig@(FixitySig name _ _) <- siglist ]
in
-- Install the fixity declarations that do apply here and go.
- extendFixityEnv fixity_sigs (
- rn_mono_binds siglist mbinds ) `thenRn` \ (binds, bind_fvs) ->
+ extendFixityEnv fixity_sigs (
+ rn_mono_binds siglist mbinds
+ ) `thenRn` \ (binds, bind_fvs) ->
-- Now do the "thing inside", and deal with the free-variable calculations
thing_inside binds `thenRn` \ (result,result_fvs) ->
\begin{code}
rn_mono_binds :: [RenamedSig] -- Signatures attached to this group
-> RdrNameMonoBinds
- -> RnMS s (RenamedHsBinds, --
+ -> RnMS (RenamedHsBinds, --
FreeVars) -- Free variables
rn_mono_binds siglist mbinds
\begin{code}
flattenMonoBinds :: [RenamedSig] -- Signatures
-> RdrNameMonoBinds
- -> RnMS s [FlatMonoBindsInfo]
+ -> RnMS [FlatMonoBindsInfo]
flattenMonoBinds sigs EmptyMonoBinds = returnRn []
let
names_bound_here = mkNameSet (collectPatBinders pat')
sigs_for_me = sigsForMe (`elemNameSet` names_bound_here) sigs
- sigs_fvs = foldr sig_fv emptyFVs sigs_for_me
in
rnGRHSs grhss `thenRn` \ (grhss', fvs) ->
returnRn
[(names_bound_here,
- fvs `plusFV` sigs_fvs `plusFV` pat_fvs,
+ fvs `plusFV` pat_fvs,
PatMonoBind pat' grhss' locn,
sigs_for_me
)]
lookupBndrRn name `thenRn` \ new_name ->
let
sigs_for_me = sigsForMe (new_name ==) sigs
- sigs_fvs = foldr sig_fv emptyFVs sigs_for_me
in
- mapAndUnzipRn rnMatch matches `thenRn` \ (new_matches, fv_lists) ->
+ mapFvRn rnMatch matches `thenRn` \ (new_matches, fvs) ->
mapRn_ (checkPrecMatch inf new_name) new_matches `thenRn_`
returnRn
[(unitNameSet new_name,
- plusFVs fv_lists `plusFV` sigs_fvs,
+ fvs,
FunMonoBind new_name inf new_matches locn,
sigs_for_me
)]
declaration. like @rnMonoBinds@ but without dependency analysis.
\begin{code}
-rnMethodBinds :: RdrNameMonoBinds -> RnMS s (RenamedMonoBinds, FreeVars)
+rnMethodBinds :: RdrNameMonoBinds -> RnMS (RenamedMonoBinds, FreeVars)
rnMethodBinds EmptyMonoBinds = returnRn (EmptyMonoBinds, emptyFVs)
lookupGlobalOccRn name `thenRn` \ sel_name ->
-- We use the selector name as the binder
- mapAndUnzipRn rnMatch matches `thenRn` \ (new_matches, fvs_s) ->
+ mapFvRn rnMatch matches `thenRn` \ (new_matches, fvs) ->
mapRn_ (checkPrecMatch inf sel_name) new_matches `thenRn_`
- returnRn (FunMonoBind sel_name inf new_matches locn, plusFVs fvs_s)
+ returnRn (FunMonoBind sel_name inf new_matches locn, fvs)
rnMethodBinds (PatMonoBind (VarPatIn name) grhss locn)
= pushSrcLocRn locn $
- lookupGlobalOccRn name `thenRn` \ sel_name ->
+ lookupGlobalOccRn name `thenRn` \ sel_name ->
rnGRHSs grhss `thenRn` \ (grhss', fvs) ->
returnRn (PatMonoBind (VarPatIn sel_name) grhss' locn, fvs)
failWithRn (EmptyMonoBinds, emptyFVs) (methodBindErr mbind)
\end{code}
-\begin{code}
--- If a SPECIALIZE pragma is of the "... = blah" form,
--- then we'd better make sure "blah" is taken into
--- acct in the dependency analysis (or we get an
--- unexpected out-of-scope error)! WDP 95/07
-
--- This is only necessary for the dependency analysis. The free vars
--- of the types in the signatures is gotten from renameSigs
-
-sig_fv (SpecSig _ _ (Just blah) _) acc = acc `plusFV` unitFV blah
-sig_fv _ acc = acc
-\end{code}
%************************************************************************
%* *
\begin{code}
renameSigs :: Bool -- True => warn if (required) type signatures are missing.
-> NameSet -- Set of names bound in this group
- -> (RdrName -> RnMS s Name)
+ -> (RdrName -> RnMS Name)
-> [RdrNameSig]
- -> RnMS s ([RenamedSig], FreeVars) -- List of Sig constructors
+ -> RnMS ([RenamedSig], FreeVars) -- List of Sig constructors
renameSigs sigs_required binders lookup_occ_nm sigs
= -- Rename the signatures
- mapAndUnzipRn (renameSig lookup_occ_nm) sigs `thenRn` \ (sigs', fvs_s) ->
+ mapFvRn (renameSig lookup_occ_nm) sigs `thenRn` \ (sigs', fvs) ->
-- Check for (a) duplicate signatures
-- (b) signatures for things not in this group
mapRn_ dupSigDeclErr dups `thenRn_`
mapRn_ unknownSigErr not_this_group `thenRn_`
mapRn_ (addWarnRn.missingSigWarn) un_sigd_binders `thenRn_`
- returnRn (sigs', plusFVs fvs_s)
+ returnRn (sigs', fvs)
-- bad ones and all:
-- we need bindings of *some* sort for every name
= pushSrcLocRn src_loc $
lookup_occ_nm v `thenRn` \ new_v ->
rnHsSigType (quotes (ppr v)) ty `thenRn` \ (new_ty,fvs) ->
- returnRn (Sig new_v new_ty src_loc, fvs)
+ returnRn (Sig new_v new_ty src_loc, fvs `addOneFV` new_v)
renameSig _ (SpecInstSig ty src_loc)
= pushSrcLocRn src_loc $
rnHsSigType (text "A SPECIALISE instance pragma") ty `thenRn` \ (new_ty, fvs) ->
returnRn (SpecInstSig new_ty src_loc, fvs)
-renameSig lookup_occ_nm (SpecSig v ty using src_loc)
+renameSig lookup_occ_nm (SpecSig v ty src_loc)
= pushSrcLocRn src_loc $
lookup_occ_nm v `thenRn` \ new_v ->
- rnHsSigType (quotes (ppr v)) ty `thenRn` \ (new_ty,fvs1) ->
- rn_using using `thenRn` \ (new_using,fvs2) ->
- returnRn (SpecSig new_v new_ty new_using src_loc, fvs1 `plusFV` fvs2)
- where
- rn_using Nothing = returnRn (Nothing, emptyFVs)
- rn_using (Just x) = lookupOccRn x `thenRn` \ new_x ->
- returnRn (Just new_x, unitFV new_x)
+ rnHsSigType (quotes (ppr v)) ty `thenRn` \ (new_ty,fvs) ->
+ returnRn (SpecSig new_v new_ty src_loc, fvs `addOneFV` new_v)
renameSig lookup_occ_nm (InlineSig v src_loc)
= pushSrcLocRn src_loc $
lookup_occ_nm v `thenRn` \ new_v ->
- returnRn (InlineSig new_v src_loc, emptyFVs)
+ returnRn (InlineSig new_v src_loc, unitFV new_v)
renameSig lookup_occ_nm (FixSig (FixitySig v fix src_loc))
= pushSrcLocRn src_loc $
lookup_occ_nm v `thenRn` \ new_v ->
- returnRn (FixSig (FixitySig new_v fix src_loc), emptyFVs)
+ returnRn (FixSig (FixitySig new_v fix src_loc), unitFV new_v)
renameSig lookup_occ_nm (NoInlineSig v src_loc)
= pushSrcLocRn src_loc $
lookup_occ_nm v `thenRn` \ new_v ->
- returnRn (NoInlineSig new_v src_loc, emptyFVs)
+ returnRn (NoInlineSig new_v src_loc, unitFV new_v)
\end{code}
Checking for distinct signatures; oh, so boring
cmp_sig (InlineSig n1 _) (InlineSig n2 _) = n1 `compare` n2
cmp_sig (NoInlineSig n1 _) (NoInlineSig n2 _) = n1 `compare` n2
cmp_sig (SpecInstSig ty1 _) (SpecInstSig ty2 _) = cmpHsType compare ty1 ty2
-cmp_sig (SpecSig n1 ty1 _ _) (SpecSig n2 ty2 _ _)
+cmp_sig (SpecSig n1 ty1 _) (SpecSig n2 ty2 _)
= -- may have many specialisations for one value;
- -- but not ones that are exactly the same...
+ -- but not ones that are exactly the same...
thenCmp (n1 `compare` n2) (cmpHsType compare ty1 ty2)
cmp_sig other_1 other_2 -- Tags *must* be different
| otherwise = GT
sig_tag (Sig n1 _ _) = (ILIT(1) :: FAST_INT)
-sig_tag (SpecSig n1 _ _ _) = ILIT(2)
+sig_tag (SpecSig n1 _ _) = ILIT(2)
sig_tag (InlineSig n1 _) = ILIT(3)
sig_tag (NoInlineSig n1 _) = ILIT(4)
sig_tag (SpecInstSig _ _) = ILIT(5)
\begin{code}
dupSigDeclErr (sig:sigs)
= pushSrcLocRn loc $
- addErrRn (sep [ptext SLIT("Duplicate"),
- ptext what_it_is <> colon,
+ addErrRn (sep [ptext SLIT("Duplicate") <+> ptext what_it_is <> colon,
ppr sig])
where
(what_it_is, loc) = sig_doc sig
sig_doc (Sig _ _ loc) = (SLIT("type signature"),loc)
sig_doc (ClassOpSig _ _ _ loc) = (SLIT("class-method type signature"), loc)
-sig_doc (SpecSig _ _ _ loc) = (SLIT("SPECIALISE pragma"),loc)
+sig_doc (SpecSig _ _ loc) = (SLIT("SPECIALISE pragma"),loc)
sig_doc (InlineSig _ loc) = (SLIT("INLINE pragma"),loc)
sig_doc (NoInlineSig _ loc) = (SLIT("NOINLINE pragma"),loc)
sig_doc (SpecInstSig _ loc) = (SLIT("SPECIALISE instance pragma"),loc)
projects / ghc-hetmet.git / blobdiff