DynFlag(..),
ExtensionFlag(..),
glasgowExtsFlags,
- flattenExtensionFlags,
- ensureFlattenedExtensionFlags,
dopt,
dopt_set,
dopt_unset,
xopt,
xopt_set,
xopt_unset,
- xopt_set_flattened,
- xopt_unset_flattened,
DynFlags(..),
RtsOptsEnabled(..),
HscTarget(..), isObjectTarget, defaultObjectTarget,
| Opt_WarnDodgyImports
| Opt_WarnOrphans
| Opt_WarnAutoOrphans
+ | Opt_WarnIdentities
| Opt_WarnTabs
| Opt_WarnUnrecognisedPragmas
| Opt_WarnDodgyForeignImports
| Opt_DoEtaReduction
| Opt_CaseMerge
| Opt_UnboxStrictFields
- | Opt_MethodSharing
+ | Opt_MethodSharing -- Now a no-op; remove in GHC 7.2
| Opt_DictsCheap
| Opt_EnableRewriteRules -- Apply rewrite rules during simplification
| Opt_Vectorise
| Opt_SharedImplib
| Opt_BuildingCabalPackage
| Opt_SSE2
+ | Opt_GhciSandbox
-- temporary flags
| Opt_RunCPS
| Opt_GADTs
| Opt_NPlusKPatterns
| Opt_DoAndIfThenElse
+ | Opt_RebindableSyntax
| Opt_StandaloneDeriving
| Opt_DeriveDataTypeable
-- hsc dynamic flags
flags :: [DynFlag],
+ -- Don't change this without updating extensionFlags:
language :: Maybe Language,
- extensionFlags :: Either [OnOff ExtensionFlag]
- [ExtensionFlag],
+ -- Don't change this without updating extensionFlags:
+ extensions :: [OnOff ExtensionFlag],
+ -- extensionFlags should always be equal to
+ -- flattenExtensionFlags language extensions
+ extensionFlags :: [ExtensionFlag],
-- | Message output action: use "ErrUtils" instead of this if you can
log_action :: Severity -> SrcSpan -> PprStyle -> Message -> IO (),
haddockOptions = Nothing,
flags = defaultFlags,
language = Nothing,
- extensionFlags = Left [],
+ extensions = [],
+ extensionFlags = flattenExtensionFlags Nothing [],
log_action = \severity srcSpan style msg ->
case severity of
data OnOff a = On a
| Off a
-flattenExtensionFlags :: DynFlags -> DynFlags
-flattenExtensionFlags dflags
- = case extensionFlags dflags of
- Left onoffs ->
- dflags {
- extensionFlags = Right $ flattenExtensionFlags' (language dflags) onoffs
- }
- Right _ ->
- panic "Flattening already-flattened extension flags"
-
-ensureFlattenedExtensionFlags :: DynFlags -> DynFlags
-ensureFlattenedExtensionFlags dflags
- = case extensionFlags dflags of
- Left onoffs ->
- dflags {
- extensionFlags = Right $ flattenExtensionFlags' (language dflags) onoffs
- }
- Right _ ->
- dflags
-
-- OnOffs accumulate in reverse order, so we use foldr in order to
-- process them in the right order
-flattenExtensionFlags' :: Maybe Language -> [OnOff ExtensionFlag]
- -> [ExtensionFlag]
-flattenExtensionFlags' ml = foldr f defaultExtensionFlags
+flattenExtensionFlags :: Maybe Language -> [OnOff ExtensionFlag]
+ -> [ExtensionFlag]
+flattenExtensionFlags ml = foldr f defaultExtensionFlags
where f (On f) flags = f : delete f flags
f (Off f) flags = delete f flags
defaultExtensionFlags = languageExtensions ml
languageExtensions :: Maybe Language -> [ExtensionFlag]
+
languageExtensions Nothing
+ -- Nothing => the default case
= Opt_MonoPatBinds -- Experimentally, I'm making this non-standard
-- behaviour the default, to see if anyone notices
-- SLPJ July 06
-- But NB it's implied by GADTs etc
-- SLPJ September 2010
: languageExtensions (Just Haskell2010)
+
languageExtensions (Just Haskell98)
= [Opt_ImplicitPrelude,
Opt_MonomorphismRestriction,
Opt_NPlusKPatterns,
Opt_DatatypeContexts]
+
languageExtensions (Just Haskell2010)
= [Opt_ImplicitPrelude,
Opt_MonomorphismRestriction,
-- | Test whether a 'ExtensionFlag' is set
xopt :: ExtensionFlag -> DynFlags -> Bool
-xopt f dflags = case extensionFlags dflags of
- Left _ -> panic ("Testing for extension flag " ++ show f ++ " before flattening")
- Right flags -> f `elem` flags
+xopt f dflags = f `elem` extensionFlags dflags
-- | Set a 'ExtensionFlag'
xopt_set :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_set dfs f = case extensionFlags dfs of
- Left onoffs -> dfs { extensionFlags = Left (On f : onoffs) }
- Right _ -> panic ("Setting extension flag " ++ show f ++ " after flattening")
-
--- | Set a 'ExtensionFlag'
-xopt_set_flattened :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_set_flattened dfs f = case extensionFlags dfs of
- Left _ ->
- panic ("Setting extension flag " ++ show f ++ " before flattening, but expected flattened")
- Right flags ->
- dfs { extensionFlags = Right (f : delete f flags) }
+xopt_set dfs f
+ = let onoffs = On f : extensions dfs
+ in dfs { extensions = onoffs,
+ extensionFlags = flattenExtensionFlags (language dfs) onoffs }
-- | Unset a 'ExtensionFlag'
xopt_unset :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_unset dfs f = case extensionFlags dfs of
- Left onoffs -> dfs { extensionFlags = Left (Off f : onoffs) }
- Right _ -> panic ("Unsetting extension flag " ++ show f ++ " after flattening")
+xopt_unset dfs f
+ = let onoffs = Off f : extensions dfs
+ in dfs { extensions = onoffs,
+ extensionFlags = flattenExtensionFlags (language dfs) onoffs }
--- | Unset a 'ExtensionFlag'
-xopt_unset_flattened :: DynFlags -> ExtensionFlag -> DynFlags
-xopt_unset_flattened dfs f = case extensionFlags dfs of
- Left _ ->
- panic ("Unsetting extension flag " ++ show f ++ " before flattening, but expected flattened")
- Right flags ->
- dfs { extensionFlags = Right (delete f flags) }
+setLanguage :: Language -> DynP ()
+setLanguage l = upd f
+ where f dfs = let mLang = Just l
+ oneoffs = extensions dfs
+ in dfs {
+ language = mLang,
+ extensionFlags = flattenExtensionFlags mLang oneoffs
+ }
-- | Retrieve the options corresponding to a particular @opt_*@ field in the correct order
getOpts :: DynFlags -- ^ 'DynFlags' to retrieve the options from
( "warn-deprecations", Opt_WarnWarningsDeprecations, nop ),
( "warn-deprecated-flags", Opt_WarnDeprecatedFlags, nop ),
( "warn-orphans", Opt_WarnOrphans, nop ),
+ ( "warn-identities", Opt_WarnIdentities, nop ),
( "warn-auto-orphans", Opt_WarnAutoOrphans, nop ),
( "warn-tabs", Opt_WarnTabs, nop ),
( "warn-unrecognised-pragmas", Opt_WarnUnrecognisedPragmas, nop ),
( "do-eta-reduction", Opt_DoEtaReduction, nop ),
( "case-merge", Opt_CaseMerge, nop ),
( "unbox-strict-fields", Opt_UnboxStrictFields, nop ),
- ( "method-sharing", Opt_MethodSharing, nop ),
+ ( "method-sharing", Opt_MethodSharing,
+ \_ -> deprecate "doesn't do anything any more"),
+ -- Remove altogether in GHC 7.2
( "dicts-cheap", Opt_DictsCheap, nop ),
( "excess-precision", Opt_ExcessPrecision, nop ),
( "eager-blackholing", Opt_EagerBlackHoling, nop ),
( "embed-manifest", Opt_EmbedManifest, nop ),
( "ext-core", Opt_EmitExternalCore, nop ),
( "shared-implib", Opt_SharedImplib, nop ),
+ ( "ghci-sandbox", Opt_GhciSandbox, nop ),
( "building-cabal-package", Opt_BuildingCabalPackage, nop ),
( "implicit-import-qualified", Opt_ImplicitImportQualified, nop )
]
( "MonomorphismRestriction", Opt_MonomorphismRestriction, nop ),
( "NPlusKPatterns", Opt_NPlusKPatterns, nop ),
( "DoAndIfThenElse", Opt_DoAndIfThenElse, nop ),
+ ( "RebindableSyntax", Opt_RebindableSyntax, nop ),
( "MonoPatBinds", Opt_MonoPatBinds, nop ),
( "ExplicitForAll", Opt_ExplicitForAll, nop ),
( "AlternativeLayoutRule", Opt_AlternativeLayoutRule, nop ),
= [ Opt_AutoLinkPackages,
Opt_ReadUserPackageConf,
- Opt_MethodSharing,
-
Opt_DoAsmMangling,
Opt_SharedImplib,
Opt_GenManifest,
Opt_EmbedManifest,
- Opt_PrintBindContents
+ Opt_PrintBindContents,
+ Opt_GhciSandbox
]
++ [f | (ns,f) <- optLevelFlags, 0 `elem` ns]
, (Opt_ExistentialQuantification, Opt_ExplicitForAll)
, (Opt_PolymorphicComponents, Opt_ExplicitForAll)
+ , (Opt_RebindableSyntax, Opt_ImplicitPrelude)
+
, (Opt_GADTs, Opt_MonoLocalBinds)
, (Opt_TypeFamilies, Opt_MonoLocalBinds)
Opt_WarnMissingSigs,
Opt_WarnHiShadows,
Opt_WarnOrphans,
- Opt_WarnUnusedDoBind
+ Opt_WarnUnusedDoBind,
+ Opt_WarnIdentities
]
-- minuswRemovesOpts should be every warning option
unSetDynFlag f = upd (\dfs -> dopt_unset dfs f)
--------------------------
-setLanguage :: Language -> DynP ()
-setLanguage l = upd (\dfs -> dfs { language = Just l })
-
---------------------------
setExtensionFlag, unSetExtensionFlag :: ExtensionFlag -> DynP ()
setExtensionFlag f = do { upd (\dfs -> xopt_set dfs f)
; mapM_ setExtensionFlag deps }
, specConstrCount = Nothing
})
`dopt_set` Opt_DictsCheap
- `dopt_unset` Opt_MethodSharing
data DPHBackend = DPHPar
| DPHSeq
projects / ghc-hetmet.git / blobdiff