module RnSource ( rnSource, rnTyDecl, rnClassDecl, rnInstDecl, rnPolyType ) where
-import Ubiq
-import RnLoop -- *check* the RnPass/RnExpr/RnBinds loop-breaking
+IMP_Ubiq()
+IMPORT_DELOOPER(RnLoop) -- *check* the RnPass/RnExpr/RnBinds loop-breaking
import HsSyn
import HsPragmas
import Bag ( emptyBag, unitBag, consBag, unionManyBags, unionBags, listToBag, bagToList )
import Class ( derivableClassKeys )
-import ErrUtils ( addErrLoc, addShortErrLocLine )
+import ErrUtils ( addErrLoc, addShortErrLocLine, addShortWarnLocLine )
import FiniteMap ( emptyFM, lookupFM, addListToFM_C )
import ListSetOps ( unionLists, minusList )
import Maybes ( maybeToBool, catMaybes )
import Name ( Name, isLocallyDefined, isLexVarId, getLocalName, ExportFlag(..),
nameImportFlag, RdrName, pprNonSym )
-import Outputable -- ToDo:rm
-import PprStyle -- ToDo:rm
+import Outputable -- ToDo:rm
+import PprStyle -- ToDo:rm
import Pretty
import SrcLoc ( SrcLoc )
import Unique ( Unique )
-import UniqFM ( emptyUFM, addListToUFM_C, listToUFM, lookupUFM, eltsUFM )
+import UniqFM ( emptyUFM, addListToUFM_C, listToUFM, plusUFM, lookupUFM, eltsUFM )
import UniqSet ( UniqSet(..) )
-import Util ( isIn, isn'tIn, sortLt, removeDups, cmpPString, assertPanic, pprTrace{-ToDo:rm-} )
+import Util ( isIn, isn'tIn, thenCmp, sortLt, removeDups, mapAndUnzip3, cmpPString,
+ assertPanic, pprTrace{-ToDo:rm-} )
\end{code}
rnSource `renames' the source module and export list.
\begin{code}
-rnSource :: [Module]
+rnSource :: [Module] -- imported modules
-> Bag (Module,RnName) -- unqualified imports from module
-> Bag RenamedFixityDecl -- fixity info for imported names
-> RdrNameHsModule
rnExports (mod:imp_mods) unqual_imps exports `thenRn` \ exported_fn ->
rnFixes fixes `thenRn` \ src_fixes ->
let
- pair_name inf = (nameFixDecl inf, inf)
+ all_fixes = src_fixes ++ bagToList imp_fixes
+ all_fixes_fm = listToUFM (map pair_name all_fixes)
- all_fixes = src_fixes ++ bagToList imp_fixes
- all_fixes_fm = listToUFM (map pair_name all_fixes)
+ pair_name inf = (fixDeclName inf, inf)
in
setExtraRn all_fixes_fm $
rnExports mods unqual_imps (Just exps)
= mapAndUnzipRn (rnIE mods) exps `thenRn` \ (mod_maybes, exp_bags) ->
let
- exp_names = bagToList (unionManyBags exp_bags)
+ (tc_bags, val_bags) = unzip exp_bags
+ tc_names = bagToList (unionManyBags tc_bags)
+ val_names = bagToList (unionManyBags val_bags)
exp_mods = catMaybes mod_maybes
-- Warn for duplicate names and modules
- (uniq_exp_names, dup_names) = removeDups cmp_fst exp_names
- (uniq_exp_mods, dup_mods) = removeDups cmpPString exp_mods
+ (_, dup_tc_names) = removeDups cmp_fst tc_names
+ (_, dup_val_names) = removeDups cmp_fst val_names
cmp_fst (x,_) (y,_) = x `cmp` y
+ (uniq_mods, dup_mods) = removeDups cmpPString exp_mods
+
+ -- Get names for exported modules
+
+ (mod_tcs, mod_vals, empty_mods)
+ = case mapAndUnzip3 get_mod_names uniq_mods of
+ (tcs, vals, emptys) -> (concat tcs, concat vals, catMaybes emptys)
+
+ (unqual_tcs, unqual_vals) = partition (isRnTyConOrClass.snd) (bagToList unqual_imps)
+
+ get_mod_names mod
+ = (tcs, vals, empty_mod)
+ where
+ tcs = [(getName rn, nameImportFlag (getName rn))
+ | (mod',rn) <- unqual_tcs, mod == mod']
+ vals = [(getName rn, nameImportFlag (getName rn))
+ | (mod',rn) <- unqual_vals, mod == mod']
+ empty_mod = if null tcs && null vals
+ then Just mod
+ else Nothing
+
-- Build finite map of exported names to export flag
- exp_map0 = addListToUFM_C lub_expflag emptyUFM (map pair_fst uniq_exp_names)
- (exp_map1, empty_mods) = foldl add_mod_names (exp_map0, []) uniq_exp_mods
-
- mod_fm = addListToFM_C unionBags emptyFM
- [(mod, unitBag (getName rn, nameImportFlag (getName rn)))
- | (mod,rn) <- bagToList unqual_imps]
-
- add_mod_names (exp_map, empty) mod
- = case lookupFM mod_fm mod of
- Nothing -> (exp_map, mod:empty)
- Just mod_names -> (addListToUFM_C lub_expflag exp_map (map pair_fst (bagToList mod_names)), empty)
+ tc_map0 = addListToUFM_C lub_expflag emptyUFM (map pair_fst tc_names)
+ tc_map = addListToUFM_C lub_expflag tc_map0 (map pair_fst mod_tcs)
+
+ val_map0 = addListToUFM_C lub_expflag emptyUFM (map pair_fst val_names)
+ val_map = addListToUFM_C lub_expflag val_map0 (map pair_fst mod_vals)
pair_fst p@(f,_) = (f,p)
lub_expflag (n, flag1) (_, flag2) = (n, lubExportFlag flag1 flag2)
-- Check for exporting of duplicate local names
- exp_locals = [(getLocalName n, n) | (n,_) <- eltsUFM exp_map1]
- (_, dup_locals) = removeDups cmp_local exp_locals
+ tc_locals = [(getLocalName n, n) | (n,_) <- eltsUFM tc_map]
+ val_locals = [(getLocalName n, n) | (n,_) <- eltsUFM val_map]
+ (_, dup_tc_locals) = removeDups cmp_local tc_locals
+ (_, dup_val_locals) = removeDups cmp_local val_locals
cmp_local (x,_) (y,_) = x `cmpPString` y
-- Build export flag function
- exp_fn n = case lookupUFM exp_map1 n of
+ final_exp_map = plusUFM tc_map val_map
+ exp_fn n = case lookupUFM final_exp_map n of
Nothing -> NotExported
Just (_,flag) -> flag
in
- getSrcLocRn `thenRn` \ src_loc ->
- mapRn (addWarnRn . dupNameExportWarn src_loc) dup_names `thenRn_`
- mapRn (addWarnRn . dupModExportWarn src_loc) dup_mods `thenRn_`
- mapRn (addWarnRn . emptyModExportWarn src_loc) empty_mods `thenRn_`
- mapRn (addErrRn . dupLocalsExportErr src_loc) dup_locals `thenRn_`
+ getSrcLocRn `thenRn` \ src_loc ->
+ mapRn (addWarnRn . dupNameExportWarn src_loc) dup_tc_names `thenRn_`
+ mapRn (addWarnRn . dupNameExportWarn src_loc) dup_val_names `thenRn_`
+ mapRn (addWarnRn . dupModExportWarn src_loc) dup_mods `thenRn_`
+ mapRn (addWarnRn . emptyModExportWarn src_loc) empty_mods `thenRn_`
+ mapRn (addErrRn . dupLocalsExportErr src_loc) dup_tc_locals `thenRn_`
+ mapRn (addErrRn . dupLocalsExportErr src_loc) dup_val_locals `thenRn_`
returnRn exp_fn
checkIEVar rn `thenRn` \ exps ->
returnRn (Nothing, exps)
where
- checkIEVar (RnName n) = returnRn (unitBag (n,ExportAll))
+ checkIEVar (RnName n) = returnRn (emptyBag, unitBag (n,ExportAll))
checkIEVar rn@(RnClassOp _ _) = getSrcLocRn `thenRn` \ src_loc ->
- failButContinueRn emptyBag (classOpExportErr rn src_loc)
- checkIEVar rn = returnRn emptyBag
+ failButContinueRn (emptyBag, emptyBag) (classOpExportErr rn src_loc)
+ checkIEVar rn = returnRn (emptyBag, emptyBag)
rnIE mods (IEThingAbs name)
= lookupTyConOrClass name `thenRn` \ rn ->
checkIEAbs rn `thenRn` \ exps ->
returnRn (Nothing, exps)
where
- checkIEAbs (RnSyn n) = returnRn (unitBag (n,ExportAbs))
- checkIEAbs (RnData n _ _) = returnRn (unitBag (n,ExportAbs))
- checkIEAbs (RnClass n _) = returnRn (unitBag (n,ExportAbs))
- checkIEAbs rn = returnRn emptyBag
+ checkIEAbs (RnSyn n) = returnRn (unitBag (n,ExportAbs), emptyBag)
+ checkIEAbs (RnData n _ _) = returnRn (unitBag (n,ExportAbs), emptyBag)
+ checkIEAbs (RnClass n _) = returnRn (unitBag (n,ExportAbs), emptyBag)
+ checkIEAbs rn = returnRn (emptyBag, emptyBag)
rnIE mods (IEThingAll name)
= lookupTyConOrClass name `thenRn` \ rn ->
checkImportAll rn `thenRn_`
returnRn (Nothing, exps)
where
- checkIEAll (RnData n cons fields) = returnRn (exp_all n `consBag` listToBag (map exp_all cons)
- `unionBags` listToBag (map exp_all fields))
- checkIEAll (RnClass n ops) = returnRn (exp_all n `consBag` listToBag (map exp_all ops))
- checkIEAll rn@(RnSyn _) = getSrcLocRn `thenRn` \ src_loc ->
- warnAndContinueRn emptyBag (synAllExportErr rn src_loc)
- checkIEAll rn = returnRn emptyBag
+ checkIEAll (RnData n cons fields) = returnRn (unitBag (exp_all n), listToBag (map exp_all cons)
+ `unionBags`
+ listToBag (map exp_all fields))
+ checkIEAll (RnClass n ops) = returnRn (unitBag (exp_all n), listToBag (map exp_all ops))
+ checkIEAll rn@(RnSyn n) = getSrcLocRn `thenRn` \ src_loc ->
+ warnAndContinueRn (unitBag (n, ExportAbs), emptyBag)
+ (synAllExportErr False{-warning-} rn src_loc)
+ checkIEAll rn = returnRn (emptyBag, emptyBag)
exp_all n = (n, ExportAll)
where
checkIEWith rn@(RnData n cons fields) rns
| same_names (cons++fields) rns
- = returnRn (consBag (exp_all n) (listToBag (map exp_all cons)))
+ = returnRn (unitBag (exp_all n), listToBag (map exp_all cons)
+ `unionBags`
+ listToBag (map exp_all fields))
| otherwise
- = rnWithErr "constructrs (and fields)" rn (cons++fields) rns
+ = rnWithErr "constructors (and fields)" rn (cons++fields) rns
checkIEWith rn@(RnClass n ops) rns
| same_names ops rns
- = returnRn (consBag (exp_all n) (listToBag (map exp_all ops)))
+ = returnRn (unitBag (exp_all n), listToBag (map exp_all ops))
| otherwise
= rnWithErr "class ops" rn ops rns
checkIEWith rn@(RnSyn _) rns
= getSrcLocRn `thenRn` \ src_loc ->
- failButContinueRn emptyBag (synAllExportErr rn src_loc)
+ failButContinueRn (emptyBag, emptyBag) (synAllExportErr True{-error-} rn src_loc)
checkIEWith rn rns
- = returnRn emptyBag
+ = returnRn (emptyBag, emptyBag)
exp_all n = (n, ExportAll)
rnWithErr str rn has rns
= getSrcLocRn `thenRn` \ src_loc ->
- failButContinueRn emptyBag (withExportErr str rn has rns src_loc)
+ failButContinueRn (emptyBag, emptyBag) (withExportErr str rn has rns src_loc)
rnIE mods (IEModuleContents mod)
| isIn "rnIE:IEModule" mod mods
- = returnRn (Just mod, emptyBag)
+ = returnRn (Just mod, (emptyBag, emptyBag))
| otherwise
= getSrcLocRn `thenRn` \ src_loc ->
- failButContinueRn (Nothing,emptyBag) (badModExportErr mod src_loc)
+ failButContinueRn (Nothing, (emptyBag, emptyBag)) (badModExportErr mod src_loc)
checkImportAll rn
= pushSrcLocRn src_loc $
lookupTyCon tycon `thenRn` \ tycon' ->
mkTyVarNamesEnv src_loc tyvars `thenRn` \ (tv_env, tyvars') ->
- rnContext tv_env context `thenRn` \ context' ->
+ rnContext tv_env src_loc context `thenRn` \ context' ->
rnConDecls tv_env condecls `thenRn` \ condecls' ->
rn_derivs tycon' src_loc derivings `thenRn` \ derivings' ->
ASSERT(isNoDataPragmas pragmas)
= pushSrcLocRn src_loc $
lookupTyCon tycon `thenRn` \ tycon' ->
mkTyVarNamesEnv src_loc tyvars `thenRn` \ (tv_env, tyvars') ->
- rnContext tv_env context `thenRn` \ context' ->
+ rnContext tv_env src_loc context `thenRn` \ context' ->
rnConDecls tv_env condecl `thenRn` \ condecl' ->
rn_derivs tycon' src_loc derivings `thenRn` \ derivings' ->
ASSERT(isNoDataPragmas pragmas)
rn_deriv tycon2 locn clas
= lookupClass clas `thenRn` \ clas_name ->
addErrIfRn (uniqueOf clas_name `not_elem` derivableClassKeys)
- (derivingNonStdClassErr clas locn)
+ (derivingNonStdClassErr clas_name locn)
`thenRn_`
returnRn clas_name
where
rnClassDecl (ClassDecl context cname tyvar sigs mbinds pragmas src_loc)
= pushSrcLocRn src_loc $
- mkTyVarNamesEnv src_loc [tyvar] `thenRn` \ (tv_env, [tyvar']) ->
- rnContext tv_env context `thenRn` \ context' ->
- lookupClass cname `thenRn` \ cname' ->
- mapRn (rn_op cname' tv_env) sigs `thenRn` \ sigs' ->
- rnMethodBinds cname' mbinds `thenRn` \ mbinds' ->
+ mkTyVarNamesEnv src_loc [tyvar] `thenRn` \ (tv_env, [tyvar']) ->
+ rnContext tv_env src_loc context `thenRn` \ context' ->
+ lookupClass cname `thenRn` \ cname' ->
+ mapRn (rn_op cname' tyvar' tv_env) sigs `thenRn` \ sigs' ->
+ rnMethodBinds cname' mbinds `thenRn` \ mbinds' ->
ASSERT(isNoClassPragmas pragmas)
returnRn (ClassDecl context' cname' tyvar' sigs' mbinds' NoClassPragmas src_loc)
where
- rn_op clas tv_env (ClassOpSig op ty pragmas locn)
+ rn_op clas clas_tyvar tv_env sig@(ClassOpSig op ty pragmas locn)
= pushSrcLocRn locn $
lookupClassOp clas op `thenRn` \ op_name ->
rnPolyType tv_env ty `thenRn` \ new_ty ->
-
-{-
-*** Please check here that tyvar' appears in new_ty ***
-*** (used to be in tcClassSig, but it's better here)
-*** not_elem = isn'tIn "tcClassSigs"
-*** -- Check that the class type variable is mentioned
-*** checkTc (clas_tyvar `not_elem` extractTyVarTemplatesFromTy local_ty)
-*** (methodTypeLacksTyVarErr clas_tyvar (_UNPK_ op_name) src_loc) `thenTc_`
--}
+ let
+ (HsForAllTy tvs ctxt op_ty) = new_ty
+ ctxt_tvs = extractCtxtTyNames ctxt
+ op_tvs = extractMonoTyNames is_tyvar_name op_ty
+ in
+ -- check that class tyvar appears in op_ty
+ ( if isIn "rn_op" clas_tyvar op_tvs
+ then returnRn ()
+ else addErrRn (classTyVarNotInOpTyErr clas_tyvar sig locn)
+ ) `thenRn_`
+
+ -- check that class tyvar *doesn't* appear in the sig's context
+ ( if isIn "rn_op(2)" clas_tyvar ctxt_tvs
+ then addErrRn (classTyVarInOpCtxtErr clas_tyvar sig locn)
+ else returnRn ()
+ ) `thenRn_`
ASSERT(isNoClassOpPragmas pragmas)
returnRn (ClassOpSig op_name new_ty noClassOpPragmas locn)
= getSrcLocRn `thenRn` \ src_loc ->
let
(_, dup_fixes) = removeDups cmp_fix fixities
- cmp_fix fix1 fix2 = nameFixDecl fix1 `cmp` nameFixDecl fix2
+ cmp_fix fix1 fix2 = fixDeclName fix1 `cmp` fixDeclName fix2
rn_fixity fix@(InfixL name i)
= rn_fixity_pieces InfixL name i fix
mapRn (addErrRn . dupFixityDeclErr src_loc) dup_fixes `thenRn_`
mapRn rn_fixity fixities `thenRn` \ fixes_maybe ->
returnRn (catMaybes fixes_maybe)
-
-nameFixDecl (InfixL name i) = name
-nameFixDecl (InfixR name i) = name
-nameFixDecl (InfixN name i) = name
\end{code}
%*********************************************************
= rn_poly_help tv_env forall_tyvars ctxt ty
where
mentioned_tyvars = extractCtxtTyNames ctxt `unionLists` extractMonoTyNames is_tyvar_name ty
- forall_tyvars = --pprTrace "mentioned:" (ppCat (map (ppr PprShowAll) mentioned_tyvars)) $
- --pprTrace "from_ty:" (ppCat (map (ppr PprShowAll) (extractMonoTyNames is_tyvar_name ty))) $
+ forall_tyvars = {-
+ pprTrace "mentioned:" (ppCat (map (ppr PprShowAll) mentioned_tyvars)) $
+ pprTrace "from_ty:" (ppCat (map (ppr PprShowAll) (extractMonoTyNames is_tyvar_name ty))) $
+ -}
mentioned_tyvars `minusList` domTyVarNamesEnv tv_env
------------
-> RnM_Fixes s RenamedPolyType
rn_poly_help tv_env tyvars ctxt ty
- = --pprTrace "rnPolyType:" (ppCat [ppCat (map (ppr PprShowAll . snd) tv_env),
- -- ppStr ";tvs=", ppCat (map (ppr PprShowAll) tyvars),
- -- ppStr ";ctxt=", ppCat (map (ppr PprShowAll) ctxt),
- -- ppStr ";ty=", ppr PprShowAll ty]
- -- ) $
- getSrcLocRn `thenRn` \ src_loc ->
- mkTyVarNamesEnv src_loc tyvars `thenRn` \ (tv_env1, new_tyvars) ->
+ = {-
+ pprTrace "rnPolyType:"
+ (ppCat [ppCat (map (ppr PprShowAll . snd) tv_env),
+ ppStr ";tvs=", ppCat (map (ppr PprShowAll) tyvars),
+ ppStr ";ctxt=", ppCat (map (ppr PprShowAll) ctxt),
+ ppStr ";ty=", ppr PprShowAll ty]) $
+ -}
+ getSrcLocRn `thenRn` \ src_loc ->
+ mkTyVarNamesEnv src_loc tyvars `thenRn` \ (tv_env1, new_tyvars) ->
let
tv_env2 = catTyVarNamesEnvs tv_env1 tv_env
in
- rnContext tv_env2 ctxt `thenRn` \ new_ctxt ->
- rnMonoType tv_env2 ty `thenRn` \ new_ty ->
+ rnContext tv_env2 src_loc ctxt `thenRn` \ new_ctxt ->
+ rnMonoType tv_env2 ty `thenRn` \ new_ty ->
returnRn (HsForAllTy new_tyvars new_ctxt new_ty)
\end{code}
\end{code}
\begin{code}
-rnContext :: TyVarNamesEnv -> RdrNameContext -> RnM_Fixes s RenamedContext
+rnContext :: TyVarNamesEnv -> SrcLoc -> RdrNameContext -> RnM_Fixes s RenamedContext
-rnContext tv_env ctxt
- = mapRn rn_ctxt ctxt
+rnContext tv_env locn ctxt
+ = mapRn rn_ctxt ctxt `thenRn` \ result ->
+ let
+ (_, dup_asserts) = removeDups cmp_assert result
+ in
+ -- If this isn't an error, then it ought to be:
+ mapRn (addWarnRn . dupClassAssertWarn result locn) dup_asserts `thenRn_`
+ returnRn result
where
rn_ctxt (clas, tyvar)
- = lookupClass clas `thenRn` \ clas_name ->
- lookupTyVarName tv_env tyvar `thenRn` \ tyvar_name ->
- returnRn (clas_name, tyvar_name)
+ = lookupClass clas `thenRn` \ clas_name ->
+ lookupTyVarName tv_env tyvar `thenRn` \ tyvar_name ->
+ returnRn (clas_name, tyvar_name)
+
+ cmp_assert (c1,tv1) (c2,tv2)
+ = (c1 `cmp` c2) `thenCmp` (tv1 `cmp` tv2)
\end{code}
\begin{code}
dupNameExportWarn locn names@((n,_):_)
- = addShortErrLocLine locn (\ sty ->
- ppCat [pprNonSym sty n, ppStr "exported", ppInt (length names), ppStr "times"])
+ = addShortWarnLocLine locn $ \ sty ->
+ ppCat [pprNonSym sty n, ppStr "exported", ppInt (length names), ppStr "times"]
dupLocalsExportErr locn locals@((str,_):_)
- = addErrLoc locn "exported names have same local name" (\ sty ->
- ppInterleave ppSP (map (pprNonSym sty . snd) locals))
+ = addErrLoc locn "exported names have same local name" $ \ sty ->
+ ppInterleave ppSP (map (pprNonSym sty . snd) locals)
classOpExportErr op locn
- = addShortErrLocLine locn (\ sty ->
- ppBesides [ppStr "class operation `", ppr sty op, ppStr "' can only be exported with class"])
+ = addShortErrLocLine locn $ \ sty ->
+ ppBesides [ppStr "class operation `", ppr sty op, ppStr "' can only be exported with class"]
-synAllExportErr syn locn
- = addShortErrLocLine locn (\ sty ->
- ppBesides [ppStr "type synonym `", ppr sty syn, ppStr "' should be exported abstractly"])
+synAllExportErr is_error syn locn
+ = (if is_error then addShortErrLocLine else addShortWarnLocLine) locn $ \ sty ->
+ ppBesides [ppStr "type synonym `", ppr sty syn, ppStr "' should be exported abstractly"]
withExportErr str rn has rns locn
- = addErrLoc locn "" (\ sty ->
- ppAboves [ ppBesides [ppStr "inconsistent list of", ppStr str, ppStr "in export list for `", ppr sty rn, ppStr "'"],
+ = addErrLoc locn "" $ \ sty ->
+ ppAboves [ ppBesides [ppStr "inconsistent list of ", ppStr str, ppStr " in export list for `", ppr sty rn, ppStr "'"],
ppCat [ppStr " expected:", ppInterleave ppComma (map (ppr sty) has)],
- ppCat [ppStr " found: ", ppInterleave ppComma (map (ppr sty) rns)] ])
+ ppCat [ppStr " found: ", ppInterleave ppComma (map (ppr sty) rns)] ]
importAllErr rn locn
- = addShortErrLocLine locn (\ sty ->
- ppBesides [ ppStr "`", pprNonSym sty rn, ppStr "' has been exported with (..), but is only imported abstractly"])
+ = addShortErrLocLine locn $ \ sty ->
+ ppBesides [ ppStr "`", pprNonSym sty rn, ppStr "' has been exported with (..), but is only imported abstractly"]
badModExportErr mod locn
- = addShortErrLocLine locn (\ sty ->
- ppCat [ ppStr "unknown module in export list:", ppPStr mod])
-
-dupModExportWarn locn mods@(mod:_)
- = addShortErrLocLine locn (\ sty ->
- ppCat [ppStr "module", ppPStr mod, ppStr "appears", ppInt (length mods), ppStr "times in export list"])
+ = addShortErrLocLine locn $ \ sty ->
+ ppCat [ ppStr "unknown module in export list: module", ppPStr mod]
emptyModExportWarn locn mod
- = addShortErrLocLine locn (\ sty ->
- ppCat [ppStr "module", ppPStr mod, ppStr "has no unqualified imports to export"])
+ = addShortWarnLocLine locn $ \ sty ->
+ ppCat [ppStr "module", ppPStr mod, ppStr "has no unqualified imports to export"]
+
+dupModExportWarn locn mods@(mod:_)
+ = addShortWarnLocLine locn $ \ sty ->
+ ppCat [ppStr "module", ppPStr mod, ppStr "appears", ppInt (length mods), ppStr "times in export list"]
derivingNonStdClassErr clas locn
- = addShortErrLocLine locn (\ sty ->
- ppCat [ppStr "non-standard class in deriving:", ppr sty clas])
+ = addShortErrLocLine locn $ \ sty ->
+ ppCat [ppStr "non-standard class in deriving:", ppr sty clas]
dupDefaultDeclErr (DefaultDecl _ locn1 : dup_things) sty
= ppAboves (item1 : map dup_item dup_things)
where
item1
- = addShortErrLocLine locn1 (\ sty -> ppStr "multiple default declarations") sty
+ = addShortErrLocLine locn1 (\ sty ->
+ ppStr "multiple default declarations") sty
dup_item (DefaultDecl _ locn)
- = addShortErrLocLine locn (\ sty -> ppStr "here was another default declaration") sty
+ = addShortErrLocLine locn (\ sty ->
+ ppStr "here was another default declaration") sty
undefinedFixityDeclErr locn decl
- = addErrLoc locn "fixity declaration for unknown operator" (\ sty ->
- ppr sty decl)
+ = addErrLoc locn "fixity declaration for unknown operator" $ \ sty ->
+ ppr sty decl
dupFixityDeclErr locn dups
- = addErrLoc locn "multiple fixity declarations for same operator" (\ sty ->
- ppAboves (map (ppr sty) dups))
+ = addErrLoc locn "multiple fixity declarations for same operator" $ \ sty ->
+ ppAboves (map (ppr sty) dups)
+
+classTyVarNotInOpTyErr clas_tyvar sig locn
+ = addShortErrLocLine locn $ \ sty ->
+ ppHang (ppBesides [ppStr "Class type variable `", ppr sty clas_tyvar, ppStr "' does not appear in method signature:"])
+ 4 (ppr sty sig)
+
+classTyVarInOpCtxtErr clas_tyvar sig locn
+ = addShortErrLocLine locn $ \ sty ->
+ ppHang (ppBesides [ppStr "Class type variable `", ppr sty clas_tyvar, ppStr "' present in method's local overloading context:"])
+ 4 (ppr sty sig)
+
+dupClassAssertWarn ctxt locn dups
+ = addShortWarnLocLine locn $ \ sty ->
+ ppHang (ppBesides [ppStr "Duplicate class assertion `", ppr sty dups, ppStr "' in context:"])
+ 4 (ppr sty ctxt)
\end{code}
projects / ghc-hetmet.git / blobdiff