| Opt_WarnIncompletePatterns
| Opt_WarnIncompletePatternsRecUpd
| Opt_WarnMissingFields
+ | Opt_WarnMissingImportList
| Opt_WarnMissingMethods
| Opt_WarnMissingSigs
| Opt_WarnNameShadowing
( "warn-incomplete-patterns", Opt_WarnIncompletePatterns, const Supported ),
( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd, const Supported ),
( "warn-missing-fields", Opt_WarnMissingFields, const Supported ),
+ ( "warn-missing-import-lists", Opt_WarnMissingImportList, const Supported ),
( "warn-missing-methods", Opt_WarnMissingMethods, const Supported ),
( "warn-missing-signatures", Opt_WarnMissingSigs, const Supported ),
( "warn-name-shadowing", Opt_WarnNameShadowing, const Supported ),
when (notNull prel_imports) $ addWarn (implicitPreludeWarn)
)
- stuff1 <- mapM (rnImportDecl this_mod) (prel_imports ++ ordinary)
- stuff2 <- mapM (rnImportDecl this_mod) source
+ stuff1 <- mapM (rnImportDecl this_mod implicit_prelude) (prel_imports ++ ordinary)
+ stuff2 <- mapM (rnImportDecl this_mod implicit_prelude) source
let (decls, rdr_env, imp_avails,hpc_usage) = combine (stuff1 ++ stuff2)
return (decls, rdr_env, imp_avails,hpc_usage)
imp_avails1 `plusImportAvails` imp_avails2,
hpc_usage1 || hpc_usage2)
-rnImportDecl :: Module
+rnImportDecl :: Module -> Bool
-> LImportDecl RdrName
-> RnM (LImportDecl Name, GlobalRdrEnv, ImportAvails,AnyHpcUsage)
-rnImportDecl this_mod (L loc (ImportDecl loc_imp_mod_name mb_pkg want_boot
+rnImportDecl this_mod implicit_prelude (L loc (ImportDecl loc_imp_mod_name mb_pkg want_boot
qual_only as_mod imp_details))
= setSrcSpan loc $ do
imp_mod_name = unLoc loc_imp_mod_name
doc = ppr imp_mod_name <+> ptext (sLit "is directly imported")
+ case imp_details of
+ (Just _) -> return ()
+ Nothing -> when (not (implicit_prelude && imp_mod_name == pRELUDE_NAME)) $
+ ifOptM Opt_WarnMissingImportList (addWarn (missingImportListWarn imp_mod_name))
+
iface <- loadSrcInterface doc imp_mod_name want_boot mb_pkg
-- Compiler sanity check: if the import didn't say
nullModuleExport mod
= ptext (sLit "The export item `module") <+> ppr mod <> ptext (sLit "' exports nothing")
+missingImportListWarn :: ModuleName -> SDoc
+missingImportListWarn mod
+ = ptext (sLit "The module") <+> quotes (ppr mod) <+> ptext (sLit "is missing an import list")
+
moduleWarn :: ModuleName -> WarningTxt -> SDoc
moduleWarn mod (WarningTxt txt)
= sep [ ptext (sLit "Module") <+> quotes (ppr mod) <> ptext (sLit ":"),