| Opt_MonomorphismRestriction
| Opt_MonoPatBinds
| Opt_MonoLocalBinds
+ | Opt_RelaxedPolyRec -- Deprecated
| Opt_ExtendedDefaultRules -- Use GHC's extended rules for defaulting
| Opt_ForeignFunctionInterface
| Opt_UnliftedFFITypes
| Opt_RecordPuns
| Opt_ViewPatterns
| Opt_GADTs
- | Opt_OutsideIn
- | Opt_RelaxedPolyRec -- Deprecated
| Opt_NPlusKPatterns
| Opt_DoAndIfThenElse
filesToClean = panic "defaultDynFlags: No filesToClean",
dirsToClean = panic "defaultDynFlags: No dirsToClean",
haddockOptions = Nothing,
- flags = [
- Opt_AutoLinkPackages,
- Opt_ReadUserPackageConf,
-
- Opt_MethodSharing,
-
- Opt_DoAsmMangling,
-
- Opt_SharedImplib,
-
- Opt_GenManifest,
- Opt_EmbedManifest,
- Opt_PrintBindContents
- ]
- ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
- -- The default -O0 options
- ++ standardWarnings,
-
+ flags = defaultFlags,
language = Nothing,
- extensionFlags = Left [],
+ extensionFlags = Left defaultExtensionFlags,
log_action = \severity srcSpan style msg ->
case severity of
extra_dopts = [ f | (ns,f) <- optLevelFlags, final_n `elem` ns ]
remove_dopts = [ f | (ns,f) <- optLevelFlags, final_n `notElem` ns ]
-optLevelFlags :: [([Int], DynFlag)]
-optLevelFlags
- = [ ([0], Opt_IgnoreInterfacePragmas)
- , ([0], Opt_OmitInterfacePragmas)
-
- , ([1,2], Opt_IgnoreAsserts)
- , ([1,2], Opt_EnableRewriteRules) -- Off for -O0; see Note [Scoping for Builtin rules]
- -- in PrelRules
- , ([1,2], Opt_DoEtaReduction)
- , ([1,2], Opt_CaseMerge)
- , ([1,2], Opt_Strictness)
- , ([1,2], Opt_CSE)
- , ([1,2], Opt_FullLaziness)
- , ([1,2], Opt_Specialise)
- , ([1,2], Opt_FloatIn)
-
- , ([2], Opt_LiberateCase)
- , ([2], Opt_SpecConstr)
- , ([2], Opt_RegsGraph)
-
--- , ([2], Opt_StaticArgumentTransformation)
--- Max writes: I think it's probably best not to enable SAT with -O2 for the
--- 6.10 release. The version of SAT in HEAD at the moment doesn't incorporate
--- several improvements to the heuristics, and I'm concerned that without
--- those changes SAT will interfere with some attempts to write "high
--- performance Haskell", as we saw in some posts on Haskell-Cafe earlier
--- this year. In particular, the version in HEAD lacks the tail call
--- criterion, so many things that look like reasonable loops will be
--- turned into functions with extra (unneccesary) thunk creation.
-
- , ([0,1,2], Opt_DoLambdaEtaExpansion)
- -- This one is important for a tiresome reason:
- -- we want to make sure that the bindings for data
- -- constructors are eta-expanded. This is probably
- -- a good thing anyway, but it seems fragile.
- ]
-
--- -----------------------------------------------------------------------------
--- Standard sets of warning options
-
-standardWarnings :: [DynFlag]
-standardWarnings
- = [ Opt_WarnWarningsDeprecations,
- Opt_WarnDeprecatedFlags,
- Opt_WarnUnrecognisedPragmas,
- Opt_WarnOverlappingPatterns,
- Opt_WarnMissingFields,
- Opt_WarnMissingMethods,
- Opt_WarnDuplicateExports,
- Opt_WarnLazyUnliftedBindings,
- Opt_WarnDodgyForeignImports,
- Opt_WarnWrongDoBind,
- Opt_WarnAlternativeLayoutRuleTransitional
- ]
-
-minusWOpts :: [DynFlag]
-minusWOpts
- = standardWarnings ++
- [ Opt_WarnUnusedBinds,
- Opt_WarnUnusedMatches,
- Opt_WarnUnusedImports,
- Opt_WarnIncompletePatterns,
- Opt_WarnDodgyExports,
- Opt_WarnDodgyImports
- ]
-
-minusWallOpts :: [DynFlag]
-minusWallOpts
- = minusWOpts ++
- [ Opt_WarnTypeDefaults,
- Opt_WarnNameShadowing,
- Opt_WarnMissingSigs,
- Opt_WarnHiShadows,
- Opt_WarnOrphans,
- Opt_WarnUnusedDoBind
- ]
-
--- minuswRemovesOpts should be every warning option
-minuswRemovesOpts :: [DynFlag]
-minuswRemovesOpts
- = minusWallOpts ++
- [Opt_WarnImplicitPrelude,
- Opt_WarnIncompletePatternsRecUpd,
- Opt_WarnSimplePatterns,
- Opt_WarnMonomorphism,
- Opt_WarnUnrecognisedPragmas,
- Opt_WarnTabs
- ]
-
-- -----------------------------------------------------------------------------
-- StgToDo: abstraction of stg-to-stg passes to run.
( "warn-orphans", Opt_WarnOrphans, nop ),
( "warn-tabs", Opt_WarnTabs, nop ),
( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, nop ),
- ( "warn-lazy-unlifted-bindings", Opt_WarnLazyUnliftedBindings,
- \_ -> deprecate "lazy unlifted bindings will be an error in GHC 6.14, and this flag will no longer exist"),
+ ( "warn-lazy-unlifted-bindings", Opt_WarnLazyUnliftedBindings, nop),
( "warn-unused-do-bind", Opt_WarnUnusedDoBind, nop ),
( "warn-wrong-do-bind", Opt_WarnWrongDoBind, nop ),
( "warn-alternative-layout-rule-transitional", Opt_WarnAlternativeLayoutRuleTransitional, nop ),
\_ -> deprecate "The new qualified operator syntax was rejected by Haskell'" )
]
+defaultFlags :: [DynFlag]
+defaultFlags
+ = [ Opt_AutoLinkPackages,
+ Opt_ReadUserPackageConf,
+
+ Opt_MethodSharing,
+
+ Opt_DoAsmMangling,
+
+ Opt_SharedImplib,
+
+ Opt_GenManifest,
+ Opt_EmbedManifest,
+ Opt_PrintBindContents
+ ]
+
+ ++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
+ -- The default -O0 options
+
+ ++ standardWarnings
+
+defaultExtensionFlags :: [OnOff ExtensionFlag]
+defaultExtensionFlags
+ = [] -- In due course I'd like Opt_MonoLocalBinds to be on by default
+
impliedFlags :: [(ExtensionFlag, ExtensionFlag)]
impliedFlags
= [ (Opt_RankNTypes, Opt_ExplicitForAll)
, (Opt_ExistentialQuantification, Opt_ExplicitForAll)
, (Opt_PolymorphicComponents, Opt_ExplicitForAll)
- , (Opt_GADTs, Opt_OutsideIn) -- We want type-sig variables to
- -- be completely rigid for GADTs
+ , (Opt_GADTs, Opt_MonoLocalBinds)
+ , (Opt_TypeFamilies, Opt_MonoLocalBinds)
+ , (Opt_FunctionalDependencies, Opt_MonoLocalBinds)
- , (Opt_TypeFamilies, Opt_OutsideIn) -- Trac #2944 gives a nice example
, (Opt_TypeFamilies, Opt_KindSignatures) -- Type families use kind signatures
-- all over the place
- , (Opt_ScopedTypeVariables, Opt_OutsideIn) -- Ditto for scoped type variables; see
- -- Note [Scoped tyvars] in TcBinds
, (Opt_ImpredicativeTypes, Opt_RankNTypes)
-- Record wild-cards implies field disambiguation
, (Opt_RecordWildCards, Opt_DisambiguateRecordFields)
]
+optLevelFlags :: [([Int], DynFlag)]
+optLevelFlags
+ = [ ([0], Opt_IgnoreInterfacePragmas)
+ , ([0], Opt_OmitInterfacePragmas)
+
+ , ([1,2], Opt_IgnoreAsserts)
+ , ([1,2], Opt_EnableRewriteRules) -- Off for -O0; see Note [Scoping for Builtin rules]
+ -- in PrelRules
+ , ([1,2], Opt_DoEtaReduction)
+ , ([1,2], Opt_CaseMerge)
+ , ([1,2], Opt_Strictness)
+ , ([1,2], Opt_CSE)
+ , ([1,2], Opt_FullLaziness)
+ , ([1,2], Opt_Specialise)
+ , ([1,2], Opt_FloatIn)
+
+ , ([2], Opt_LiberateCase)
+ , ([2], Opt_SpecConstr)
+ , ([2], Opt_RegsGraph)
+
+-- , ([2], Opt_StaticArgumentTransformation)
+-- Max writes: I think it's probably best not to enable SAT with -O2 for the
+-- 6.10 release. The version of SAT in HEAD at the moment doesn't incorporate
+-- several improvements to the heuristics, and I'm concerned that without
+-- those changes SAT will interfere with some attempts to write "high
+-- performance Haskell", as we saw in some posts on Haskell-Cafe earlier
+-- this year. In particular, the version in HEAD lacks the tail call
+-- criterion, so many things that look like reasonable loops will be
+-- turned into functions with extra (unneccesary) thunk creation.
+
+ , ([0,1,2], Opt_DoLambdaEtaExpansion)
+ -- This one is important for a tiresome reason:
+ -- we want to make sure that the bindings for data
+ -- constructors are eta-expanded. This is probably
+ -- a good thing anyway, but it seems fragile.
+ ]
+
+-- -----------------------------------------------------------------------------
+-- Standard sets of warning options
+
+standardWarnings :: [DynFlag]
+standardWarnings
+ = [ Opt_WarnWarningsDeprecations,
+ Opt_WarnDeprecatedFlags,
+ Opt_WarnUnrecognisedPragmas,
+ Opt_WarnOverlappingPatterns,
+ Opt_WarnMissingFields,
+ Opt_WarnMissingMethods,
+ Opt_WarnDuplicateExports,
+ Opt_WarnLazyUnliftedBindings,
+ Opt_WarnDodgyForeignImports,
+ Opt_WarnWrongDoBind,
+ Opt_WarnAlternativeLayoutRuleTransitional
+ ]
+
+minusWOpts :: [DynFlag]
+minusWOpts
+ = standardWarnings ++
+ [ Opt_WarnUnusedBinds,
+ Opt_WarnUnusedMatches,
+ Opt_WarnUnusedImports,
+ Opt_WarnIncompletePatterns,
+ Opt_WarnDodgyExports,
+ Opt_WarnDodgyImports
+ ]
+
+minusWallOpts :: [DynFlag]
+minusWallOpts
+ = minusWOpts ++
+ [ Opt_WarnTypeDefaults,
+ Opt_WarnNameShadowing,
+ Opt_WarnMissingSigs,
+ Opt_WarnHiShadows,
+ Opt_WarnOrphans,
+ Opt_WarnUnusedDoBind
+ ]
+
+-- minuswRemovesOpts should be every warning option
+minuswRemovesOpts :: [DynFlag]
+minuswRemovesOpts
+ = minusWallOpts ++
+ [Opt_WarnImplicitPrelude,
+ Opt_WarnIncompletePatternsRecUpd,
+ Opt_WarnSimplePatterns,
+ Opt_WarnMonomorphism,
+ Opt_WarnUnrecognisedPragmas,
+ Opt_WarnTabs
+ ]
+
enableGlasgowExts :: DynP ()
enableGlasgowExts = do setDynFlag Opt_PrintExplicitForalls
mapM_ setExtensionFlag glasgowExtsFlags
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