-- Dynamic flags
DynFlag(..),
DynFlags(..),
- HscTarget(..), isObjectTarget,
+ HscTarget(..), isObjectTarget, defaultObjectTarget,
GhcMode(..), isOneShot,
GhcLink(..), isNoLink,
PackageFlag(..),
import Panic ( panic, GhcException(..) )
import UniqFM ( UniqFM )
import Util ( notNull, splitLongestPrefix, normalisePath )
-import Maybes ( fromJust, orElse )
+import Maybes ( orElse, fromJust )
import SrcLoc ( SrcSpan )
import Outputable
import {-# SOURCE #-} ErrUtils ( Severity(..), Message, mkLocMessage )
import Util ( split )
#endif
-import Data.Char ( isUpper )
+import Data.Char ( isUpper, toLower )
import System.IO ( hPutStrLn, stderr )
-- -----------------------------------------------------------------------------
| Opt_WarnIsError -- -Werror; makes warnings fatal
| Opt_WarnDuplicateExports
| Opt_WarnHiShadows
+ | Opt_WarnImplicitPrelude
| Opt_WarnIncompletePatterns
| Opt_WarnIncompletePatternsRecUpd
| Opt_WarnMissingFields
| Opt_ImplicitPrelude
| Opt_ScopedTypeVariables
| Opt_BangPatterns
- | Opt_IndexedTypes
+ | Opt_TypeFamilies
| Opt_OverloadedStrings
+ | Opt_DisambiguateRecordFields
+ | Opt_RecordDotDot
+ | Opt_RecordPuns
+ | Opt_GADTs
+ | Opt_RelaxedPolyRec -- -X=RelaxedPolyRec
-- optimisation opts
| Opt_Strictness
| Opt_RewriteRules
-- misc opts
+ | Opt_ShortGhciBanner
| Opt_Cpp
| Opt_Pp
| Opt_ForceRecomp
| Opt_PrintBindResult
| Opt_Haddock
| Opt_Hpc_No_Auto
+ | Opt_BreakOnException
-- keeping stuff
| Opt_KeepHiDiffs
| IgnorePackage String
deriving Eq
-defaultHscTarget
+defaultHscTarget = defaultObjectTarget
+
+-- | the 'HscTarget' value corresponding to the default way to create
+-- object files on the current platform.
+defaultObjectTarget
| cGhcWithNativeCodeGen == "YES" = HscAsm
| otherwise = HscC
, ( "F" , NoArg (setDynFlag Opt_Pp))
, ( "#include" , HasArg (addCmdlineHCInclude) )
, ( "v" , OptIntSuffix setVerbosity )
+ , ( "short-ghci-banner", NoArg (setDynFlag Opt_ShortGhciBanner) )
+ , ( "long-ghci-banner" , NoArg (unSetDynFlag Opt_ShortGhciBanner) )
------- Specific phases --------------------------------------------
, ( "pgmL" , HasArg (upd . setPgmL) )
, ( "fglasgow-exts", NoArg (mapM_ setDynFlag glasgowExtsFlags) )
, ( "fno-glasgow-exts", NoArg (mapM_ unSetDynFlag glasgowExtsFlags) )
-
-- the rest of the -f* and -fno-* flags
- , ( "fno-", PrefixPred (\f -> isFFlag f) (\f -> unSetDynFlag (getFFlag f)) )
- , ( "f", PrefixPred (\f -> isFFlag f) (\f -> setDynFlag (getFFlag f)) )
+ , ( "f", PrefixPred (isFlag fFlags) (\f -> setDynFlag (getFlag fFlags f)) )
+ , ( "f", PrefixPred (isNoFlag fFlags) (\f -> unSetDynFlag (getNoFlag fFlags f)) )
+
+ -- For now, allow -X flags with -f; ToDo: report this as deprecated
+ , ( "f", PrefixPred (isFlag xFlags) (\f -> setDynFlag (getFlag xFlags f)) )
+ , ( "f", PrefixPred (isNoFlag xFlags) (\f -> unSetDynFlag (getNoFlag xFlags f)) )
+
+ -- the rest of the -X* and -Xno-* flags
+ , ( "X", PrefixPred (isFlag xFlags) (\f -> setDynFlag (getFlag xFlags f)) )
+ , ( "X", PrefixPred (isNoFlag xFlags) (\f -> unSetDynFlag (getNoFlag xFlags f)) )
]
-- these -f<blah> flags can all be reversed with -fno-<blah>
fFlags = [
( "warn-duplicate-exports", Opt_WarnDuplicateExports ),
( "warn-hi-shadowing", Opt_WarnHiShadows ),
+ ( "warn-implicit-prelude", Opt_WarnImplicitPrelude ),
( "warn-incomplete-patterns", Opt_WarnIncompletePatterns ),
( "warn-incomplete-record-updates", Opt_WarnIncompletePatternsRecUpd ),
( "warn-missing-fields", Opt_WarnMissingFields ),
( "warn-deprecations", Opt_WarnDeprecations ),
( "warn-orphans", Opt_WarnOrphans ),
( "warn-tabs", Opt_WarnTabs ),
- ( "fi", Opt_FFI ), -- support `-ffi'...
- ( "ffi", Opt_FFI ), -- ...and also `-fffi'
- ( "arrows", Opt_Arrows ), -- arrow syntax
- ( "parr", Opt_PArr ),
- ( "th", Opt_TH ),
- ( "implicit-prelude", Opt_ImplicitPrelude ),
- ( "scoped-type-variables", Opt_ScopedTypeVariables ),
- ( "bang-patterns", Opt_BangPatterns ),
- ( "overloaded-strings", Opt_OverloadedStrings ),
- ( "indexed-types", Opt_IndexedTypes ),
- ( "monomorphism-restriction", Opt_MonomorphismRestriction ),
- ( "mono-pat-binds", Opt_MonoPatBinds ),
- ( "extended-default-rules", Opt_ExtendedDefaultRules ),
- ( "implicit-params", Opt_ImplicitParams ),
- ( "allow-overlapping-instances", Opt_AllowOverlappingInstances ),
- ( "allow-undecidable-instances", Opt_AllowUndecidableInstances ),
- ( "allow-incoherent-instances", Opt_AllowIncoherentInstances ),
- ( "generics", Opt_Generics ),
( "strictness", Opt_Strictness ),
( "full-laziness", Opt_FullLaziness ),
( "liberate-case", Opt_LiberateCase ),
( "print-bind-result", Opt_PrintBindResult ),
( "force-recomp", Opt_ForceRecomp ),
( "hpc-no-auto", Opt_Hpc_No_Auto ),
- ( "rewrite-rules", Opt_RewriteRules )
+ ( "rewrite-rules", Opt_RewriteRules ),
+ ( "break-on-exception", Opt_BreakOnException )
+ ]
+
+
+-- These -X<blah> flags can all be reversed with -Xno-<blah>
+xFlags :: [(String, DynFlag)]
+xFlags = [
+ ( "FI", Opt_FFI ), -- support `-ffi'...
+ ( "FFI", Opt_FFI ), -- ...and also `-fffi'
+ ( "ForeignFunctionInterface", Opt_FFI ), -- ...and also `-fffi'
+
+ ( "Arrows", Opt_Arrows ), -- arrow syntax
+ ( "Parr", Opt_PArr ),
+
+ ( "TH", Opt_TH ),
+ ( "TemplateHaskelll", Opt_TH ),
+
+ ( "Generics", Opt_Generics ),
+
+ ( "ImplicitPrelude", Opt_ImplicitPrelude ), -- On by default
+
+ ( "OverloadedStrings", Opt_OverloadedStrings ),
+ ( "GADTs", Opt_GADTs ),
+ ( "TypeFamilies", Opt_TypeFamilies ),
+ ( "BangPatterns", Opt_BangPatterns ),
+ ( "MonomorphismRestriction", Opt_MonomorphismRestriction ), -- On by default
+ ( "MonoPatBinds", Opt_MonoPatBinds ), -- On by default (which is not strictly H98)
+ ( "RelaxedPolyRec", Opt_RelaxedPolyRec),
+ ( "ExtendedDefaultRules", Opt_ExtendedDefaultRules ),
+ ( "ImplicitParams", Opt_ImplicitParams ),
+ ( "ScopedTypeVariables", Opt_ScopedTypeVariables ),
+ ( "AllowOverlappingInstances", Opt_AllowOverlappingInstances ),
+ ( "AllowUndecidableInstances", Opt_AllowUndecidableInstances ),
+ ( "AllowIncoherentInstances", Opt_AllowIncoherentInstances )
]
+impliedFlags :: [(DynFlag, [DynFlag])]
+impliedFlags = [
+ ( Opt_GADTs, [Opt_RelaxedPolyRec] ) -- We want type-sig variables to be completely rigid for GADTs
+ ]
+
+glasgowExtsFlags = [ Opt_GlasgowExts
+ , Opt_FFI
+ , Opt_ImplicitParams
+ , Opt_ScopedTypeVariables
+ , Opt_TypeFamilies ]
+
+------------------
+isNoFlag, isFlag :: [(String,a)] -> String -> Bool
-glasgowExtsFlags = [
- Opt_GlasgowExts,
- Opt_FFI,
- Opt_ImplicitParams,
- Opt_ScopedTypeVariables,
- Opt_IndexedTypes ]
+isFlag flags f = is_flag flags (normaliseFlag f)
-isFFlag f = f `elem` (map fst fFlags)
-getFFlag f = fromJust (lookup f fFlags)
+isNoFlag flags no_f
+ | Just f <- noFlag_maybe (normaliseFlag no_f) = is_flag flags f
+ | otherwise = False
+
+is_flag flags nf = any (\(ff,_) -> normaliseFlag ff == nf) flags
+ -- nf is normalised alreadly
+
+------------------
+getFlag, getNoFlag :: [(String,a)] -> String -> a
+
+getFlag flags f = get_flag flags (normaliseFlag f)
+
+getNoFlag flags f = get_flag flags (fromJust (noFlag_maybe (normaliseFlag f)))
+ -- The flag should be a no-flag already
+
+get_flag flags nf = case [ opt | (ff, opt) <- flags, normaliseFlag ff == nf] of
+ (o:os) -> o
+ [] -> panic ("get_flag " ++ nf)
+
+------------------
+noFlag_maybe :: String -> Maybe String
+-- The input is normalised already
+noFlag_maybe ('n' : 'o' : f) = Just f
+noFlag_maybe other = Nothing
+
+normaliseFlag :: String -> String
+-- Normalise a option flag by
+-- * map to lower case
+-- * removing hyphens
+-- Thus: -X=overloaded-strings or -XOverloadedStrings
+normaliseFlag [] = []
+normaliseFlag ('-':s) = normaliseFlag s
+normaliseFlag (c:s) = toLower c : normaliseFlag s
-- -----------------------------------------------------------------------------
-- Parsing the dynamic flags.
dfs <- getCmdLineState
putCmdLineState $! (f dfs)
+--------------------------
setDynFlag, unSetDynFlag :: DynFlag -> DynP ()
-setDynFlag f = upd (\dfs -> dopt_set dfs f)
+setDynFlag f = upd (\dfs -> foldl dopt_set (dopt_set dfs f) deps)
+ where
+ deps = [ d | (f', ds) <- impliedFlags, f' == f, d <- ds ]
+ -- When you set f, set the ones it implies
+ -- When you un-set f, however, we don't un-set the things it implies
+ -- (except for -fno-glasgow-exts, which is treated specially)
+
unSetDynFlag f = upd (\dfs -> dopt_unset dfs f)
+--------------------------
setDumpFlag :: DynFlag -> OptKind DynP
setDumpFlag dump_flag
= NoArg (setDynFlag Opt_ForceRecomp >> setDynFlag dump_flag)
projects / ghc-hetmet.git / blobdiff