instDeclFVs, tyClDeclFVs, ruleDeclFVs
)
-import CmdLineOpts ( DynFlags, DynFlag(..), dopt )
+import CmdLineOpts ( DynFlags, DynFlag(..) )
import RnMonad
import RnNames ( getGlobalNames )
import RnSource ( rnSourceDecls, rnTyClDecl, rnIfaceRuleDecl, rnInstDecl )
getInterfaceExports, closeDecls,
RecompileRequired, outOfDate, recompileRequired
)
-import RnHiFiles ( readIface, removeContext,
+import RnHiFiles ( readIface, removeContext, loadInterface,
loadExports, loadFixDecls, loadDeprecs )
-import RnEnv ( availsToNameSet,
+import RnEnv ( availsToNameSet, availName,
emptyAvailEnv, unitAvailEnv, availEnvElts, plusAvailEnv, groupAvails,
warnUnusedImports, warnUnusedLocalBinds, warnUnusedModules,
- lookupOrigNames, lookupSrcName, newGlobalName
+ lookupOrigNames, lookupSrcName, newGlobalName, unQualInScope
)
import Module ( Module, ModuleName, WhereFrom(..),
moduleNameUserString, moduleName,
- mkModuleInThisPackage, mkModuleName, moduleEnvElts
+ moduleEnvElts
)
import Name ( Name, NamedThing(..), getSrcLoc,
- nameIsLocalOrFrom,
- nameOccName, nameModule,
+ nameIsLocalOrFrom, nameOccName, nameModule,
)
import Name ( mkNameEnv, nameEnvElts, extendNameEnv )
import RdrName ( elemRdrEnv, foldRdrEnv, isQual )
import NameSet
import TysWiredIn ( unitTyCon, intTyCon, boolTyCon )
import PrelNames ( mAIN_Name, pREL_MAIN_Name, pRELUDE_Name,
- ioTyCon_RDR, main_RDR,
+ ioTyCon_RDR, main_RDR_Unqual,
unpackCString_RDR, unpackCStringFoldr_RDR, unpackCStringUtf8_RDR,
eqString_RDR
)
import PrelInfo ( derivingOccurrences )
import Type ( funTyCon )
-import ErrUtils ( dumpIfSet )
+import ErrUtils ( dumpIfSet, showPass, printErrorsAndWarnings, errorsFound )
import Bag ( bagToList )
import FiniteMap ( FiniteMap, fmToList, emptyFM, lookupFM,
addToFM_C, elemFM, addToFM
ModIface(..), WhatsImported(..),
VersionInfo(..), ImportVersion,
IfaceDecls, mkIfaceDecls, dcl_tycl, dcl_rules, dcl_insts,
- GlobalRdrEnv, AvailEnv, GenAvailInfo(..), AvailInfo,
+ GlobalRdrEnv, pprGlobalRdrEnv,
+ AvailEnv, GenAvailInfo(..), AvailInfo, Avails,
Provenance(..), ImportReason(..), initialVersionInfo,
Deprecations(..), lookupDeprec, lookupIface
)
-> HomeIfaceTable -> HomeSymbolTable
-> PersistentCompilerState
-> Module -> RdrNameHsModule
- -> IO (PersistentCompilerState, Maybe (ModIface, [RenamedHsDecl]))
+ -> IO (PersistentCompilerState, Maybe (PrintUnqualified, ModIface, [RenamedHsDecl]))
-- Nothing => some error occurred in the renamer
renameModule dflags hit hst old_pcs this_module rdr_module
- = -- Initialise the renamer monad
- do {
- (new_pcs, errors_found, maybe_rn_stuff)
- <- initRn dflags hit hst old_pcs this_module (rename this_module rdr_module) ;
+ = do { showPass dflags "Renamer"
- -- Return results. No harm in updating the PCS
- if errors_found then
+ -- Initialise the renamer monad
+ ; (new_pcs, msgs, maybe_rn_stuff) <- initRn dflags hit hst old_pcs this_module
+ (rename this_module rdr_module)
+
+ ; let print_unqualified :: Name -> Bool -- Is this chap in scope unqualified?
+ print_unqualified = case maybe_rn_stuff of
+ Just (unqual, _, _) -> unqual
+ Nothing -> alwaysQualify
+
+
+ -- Print errors from renaming
+ ; printErrorsAndWarnings print_unqualified msgs ;
+
+ -- Return results. No harm in updating the PCS
+ ; if errorsFound msgs then
return (new_pcs, Nothing)
- else
+ else
return (new_pcs, maybe_rn_stuff)
}
\end{code}
\begin{code}
-rename :: Module -> RdrNameHsModule -> RnMG (Maybe (ModIface, [RenamedHsDecl]))
+rename :: Module -> RdrNameHsModule -> RnMG (Maybe (PrintUnqualified, ModIface, [RenamedHsDecl]))
rename this_module contents@(HsModule _ _ _ imports local_decls mod_deprec loc)
= pushSrcLocRn loc $
returnRn Nothing
else
+ traceRn (text "Local top-level environment" $$
+ nest 4 (pprGlobalRdrEnv local_gbl_env)) `thenRn_`
+
-- DEAL WITH DEPRECATIONS
rnDeprecs local_gbl_env mod_deprec
[d | DeprecD d <- local_decls] `thenRn` \ my_deprecs ->
fixitiesFromLocalDecls local_gbl_env local_decls `thenRn` \ local_fixity_env ->
-- RENAME THE SOURCE
- initRnMS gbl_env local_fixity_env SourceMode (
- rnSourceDecls local_decls
- ) `thenRn` \ (rn_local_decls, source_fvs) ->
+ rnSourceDecls gbl_env local_fixity_env local_decls `thenRn` \ (rn_local_decls, source_fvs) ->
-- CHECK THAT main IS DEFINED, IF REQUIRED
checkMain this_module local_gbl_env `thenRn_`
-- SLURP IN ALL THE NEEDED DECLARATIONS
implicitFVs mod_name rn_local_decls `thenRn` \ implicit_fvs ->
let
- slurp_fvs = implicit_fvs `plusFV` source_fvs
+ slurp_fvs = implicit_fvs `plusFV` source_fvs
-- It's important to do the "plus" this way round, so that
-- when compiling the prelude, locally-defined (), Bool, etc
-- override the implicit ones.
mi_decls = panic "mi_decls"
}
- -- The export_fvs make the exported names look just as if they
- -- occurred in the source program.
- -- We only need the 'parent name' of the avail;
- -- that's enough to suck in the declaration.
- export_fvs = availsToNameSet export_avails
- used_vars = source_fvs `plusFV` export_fvs
-
+ print_unqualified = unQualInScope gbl_env
in
-- REPORT UNUSED NAMES, AND DEBUG DUMP
- reportUnusedNames mod_iface imports global_avail_env
- used_vars rn_imp_decls `thenRn_`
+ reportUnusedNames mod_iface print_unqualified
+ imports global_avail_env
+ source_fvs export_avails rn_imp_decls `thenRn_`
- returnRn (Just (mod_iface, final_decls))
+ returnRn (Just (print_unqualified, mod_iface, final_decls))
where
mod_name = moduleName this_module
\end{code}
checkMain :: Module -> GlobalRdrEnv -> RnMG ()
checkMain this_mod local_env
| moduleName this_mod == mAIN_Name
- = checkRn (main_RDR `elemRdrEnv` local_env) noMainErr
+ = checkRn (main_RDR_Unqual `elemRdrEnv` local_env) noMainErr
| otherwise
= returnRn ()
\end{code}
-- True <=> errors happened
checkOldIface dflags hit hst pcs iface_path source_unchanged maybe_iface
- = case maybe_iface of
+ = runRn dflags hit hst pcs (panic "Bogus module") $
+ case maybe_iface of
Just old_iface -> -- Use the one we already have
- startRn (mi_module old_iface) $
- check_versions old_iface
+ setModuleRn (mi_module old_iface) (check_versions old_iface)
+
Nothing -- try and read it from a file
- -> do read_result <- readIface do_traceRn iface_path
- case read_result of
- Left err -> -- Old interface file not found, or garbled; give up
- do { ioTraceRn (text "Bad old interface file" $$ nest 4 err) ;
- return (pcs, False, (outOfDate, Nothing)) }
- Right parsed_iface
- -> startRn (pi_mod parsed_iface) $
+ -> readIface iface_path `thenRn` \ read_result ->
+ case read_result of
+ Left err -> -- Old interface file not found, or garbled; give up
+ traceRn (text "Bad old interface file" $$ nest 4 err) `thenRn_`
+ returnRn (outOfDate, Nothing)
+
+ Right parsed_iface
+ -> setModuleRn (pi_mod parsed_iface) $
loadOldIface parsed_iface `thenRn` \ m_iface ->
check_versions m_iface
where
recompileRequired iface_path source_unchanged iface
`thenRn` \ recompile ->
returnRn (recompile, Just iface)
-
- do_traceRn = dopt Opt_D_dump_rn_trace dflags
- ioTraceRn sdoc = if do_traceRn then printErrs sdoc else return ()
- startRn mod = initRn dflags hit hst pcs mod
\end{code}
I think the following function should now have a more representative name,
loadOldIface parsed_iface
= let iface = parsed_iface
- in -- RENAME IT
- let mod = pi_mod iface
- doc_str = ptext SLIT("need usage info from") <+> ppr mod
+ mod = pi_mod iface
in
initIfaceRnMS mod (
loadHomeDecls (pi_decls iface) `thenRn` \ decls ->
-- True <=> errors happened
closeIfaceDecls dflags hit hst pcs
mod_iface@(ModIface { mi_module = mod, mi_decls = iface_decls })
- = initRn dflags hit hst pcs mod $
+ = runRn dflags hit hst pcs mod $
let
rule_decls = dcl_rules iface_decls
%*********************************************************
\begin{code}
-reportUnusedNames :: ModIface -> [RdrNameImportDecl]
+reportUnusedNames :: ModIface -> PrintUnqualified
+ -> [RdrNameImportDecl]
-> AvailEnv
- -> NameSet
+ -> NameSet -- Used in this module
+ -> Avails -- Exported by this module
-> [RenamedHsDecl]
-> RnMG ()
-reportUnusedNames my_mod_iface imports avail_env
- used_names imported_decls
+reportUnusedNames my_mod_iface unqual imports avail_env
+ source_fvs export_avails imported_decls
= warnUnusedModules unused_imp_mods `thenRn_`
warnUnusedLocalBinds bad_locals `thenRn_`
warnUnusedImports bad_imp_names `thenRn_`
- printMinimalImports this_mod minimal_imports `thenRn_`
- warnDeprecations this_mod my_deprecs really_used_names `thenRn_`
- traceRn (text "Used" <+> fsep (map ppr (nameSetToList used_names))) `thenRn_`
- returnRn ()
+ printMinimalImports this_mod unqual minimal_imports `thenRn_`
+ warnDeprecations this_mod export_avails my_deprecs
+ really_used_names
where
this_mod = mi_module my_mod_iface
gbl_env = mi_globals my_mod_iface
my_deprecs = mi_deprecs my_mod_iface
+ -- The export_fvs make the exported names look just as if they
+ -- occurred in the source program.
+ export_fvs = availsToNameSet export_avails
+ used_names = source_fvs `plusFV` export_fvs
+
-- Now, a use of C implies a use of T,
-- if C was brought into scope by T(..) or T(C)
really_used_names = used_names `unionNameSets`
bad_locals = [n | (n,LocalDef) <- defined_but_not_used]
bad_imp_names :: [(Name,Provenance)]
- bad_imp_names = [(n,p) | (n,p@(NonLocalDef (UserImport mod _ True) _)) <- defined_but_not_used,
+ bad_imp_names = [(n,p) | (n,p@(NonLocalDef (UserImport mod _ True))) <- defined_but_not_used,
not (module_unused mod)]
-- inst_mods are directly-imported modules that
minimal_imports1 = foldr add_name minimal_imports0 defined_and_used
minimal_imports = foldr add_inst_mod minimal_imports1 inst_mods
- add_name (n,NonLocalDef (UserImport m _ _) _) acc = addToFM_C plusAvailEnv acc (moduleName (nameModule n))
- (unitAvailEnv (mk_avail n))
- add_name (n,other_prov) acc = acc
+ add_name (n,NonLocalDef (UserImport m _ _)) acc = addToFM_C plusAvailEnv acc (moduleName (nameModule n))
+ (unitAvailEnv (mk_avail n))
+ add_name (n,other_prov) acc = acc
mk_avail n = case lookupNameEnv avail_env n of
Just (AvailTC m _) | n==m -> AvailTC n [n]
module_unused :: Module -> Bool
module_unused mod = moduleName mod `elem` unused_imp_mods
-
-warnDeprecations this_mod my_deprecs used_names
+warnDeprecations this_mod export_avails my_deprecs used_names
= doptRn Opt_WarnDeprecations `thenRn` \ warn_drs ->
if not warn_drs then returnRn () else
- getIfacesRn `thenRn` \ ifaces ->
- getHomeIfaceTableRn `thenRn` \ hit ->
+ -- The home modules for things in the export list
+ -- may not have been loaded yet; do it now, so
+ -- that we can see their deprecations, if any
+ mapRn_ load_home export_mods `thenRn_`
+
+ getIfacesRn `thenRn` \ ifaces ->
+ getHomeIfaceTableRn `thenRn` \ hit ->
let
pit = iPIT ifaces
deprecs = [ (n,txt)
mapRn_ warnDeprec deprecs
where
+ export_mods = nub [ moduleName (nameModule name)
+ | avail <- export_avails,
+ let name = availName avail,
+ not (nameIsLocalOrFrom this_mod name) ]
+
+ load_home m = loadInterface (text "Check deprecations for" <+> ppr m) m ImportBySystem
+
lookup_deprec hit pit n
| nameIsLocalOrFrom this_mod n
= lookupDeprec my_deprecs n
Nothing -> pprPanic "warnDeprecations:" (ppr n)
-- ToDo: deal with original imports with 'qualified' and 'as M' clauses
-printMinimalImports this_mod imps
+printMinimalImports this_mod unqual imps
= doptRn Opt_D_dump_minimal_imports `thenRn` \ dump_minimal ->
if not dump_minimal then returnRn () else
mapRn to_ies (fmToList imps) `thenRn` \ mod_ies ->
ioToRnM (do { h <- openFile filename WriteMode ;
- printForUser h (vcat (map ppr_mod_ie mod_ies))
+ printForUser h unqual (vcat (map ppr_mod_ie mod_ies))
}) `thenRn_`
returnRn ()
where
stats = vcat
[int n_mods <+> text "interfaces read",
- hsep [ int n_decls_slurped, text "class decls imported, out of",
+ hsep [ int n_decls_slurped, text "type/class/variable imported, out of",
int (n_decls_slurped + n_decls_left), text "read"],
hsep [ int n_insts_slurped, text "instance decls imported, out of",
int (n_insts_slurped + n_insts_left), text "read"],
hsep [ int n_rules_slurped, text "rule decls imported, out of",
int (n_rules_slurped + n_rules_left), text "read"]
]
-
-count_decls decls
- = (class_decls,
- data_decls,
- newtype_decls,
- syn_decls,
- val_decls,
- inst_decls)
- where
- tycl_decls = [d | TyClD d <- decls]
- (class_decls, data_decls, newtype_decls, syn_decls, val_decls) = countTyClDecls tycl_decls
-
- inst_decls = length [() | InstD _ <- decls]
\end{code}
projects / ghc-hetmet.git / blobdiff