-- misc opts
| Opt_Pp
| Opt_ForceRecomp
- | Opt_DryRun
| Opt_ExcessPrecision
| Opt_EagerBlackHoling
| Opt_ReadUserPackageConf
| Opt_TemplateHaskell
| Opt_QuasiQuotes
| Opt_ImplicitParams
- | Opt_Generics -- "Derivable type classes"
| Opt_ImplicitPrelude
| Opt_ScopedTypeVariables
| Opt_UnboxedTuples
| Opt_DeriveFunctor
| Opt_DeriveTraversable
| Opt_DeriveFoldable
+ | Opt_DeriveGeneric -- Allow deriving Generic/1
+ | Opt_DefaultSignatures -- Allow extra signatures for defmeths
+ | Opt_Generics -- Old generic classes, now deprecated
| Opt_TypeSynonymInstances
| Opt_FlexibleContexts
= HscC -- ^ Generate C code.
| HscAsm -- ^ Generate assembly using the native code generator.
| HscLlvm -- ^ Generate assembly using the llvm code generator.
- | HscJava -- ^ Generate Java bytecode.
| HscInterpreted -- ^ Generate bytecode. (Requires 'LinkInMemory')
| HscNothing -- ^ Don't generate any code. See notes above.
deriving (Eq, Show)
showHscTargetFlag HscC = "-fvia-c"
showHscTargetFlag HscAsm = "-fasm"
showHscTargetFlag HscLlvm = "-fllvm"
-showHscTargetFlag HscJava = panic "No flag for HscJava"
showHscTargetFlag HscInterpreted = "-fbyte-code"
showHscTargetFlag HscNothing = "-fno-code"
maxSimplIterations = 4,
shouldDumpSimplPhase = Nothing,
ruleCheck = Nothing,
- specConstrThreshold = Just 200,
+ specConstrThreshold = Just 2000,
specConstrCount = Just 3,
- liberateCaseThreshold = Just 200,
+ liberateCaseThreshold = Just 2000,
floatLamArgs = Just 0, -- Default: float only if no fvs
strictnessBefore = [],
--------------- The main flags themselves ------------------
dynamic_flags :: [Flag (CmdLineP DynFlags)]
dynamic_flags = [
- Flag "n" (NoArg (setDynFlag Opt_DryRun))
+ Flag "n" (NoArg (addWarn "The -n flag is deprecated and no longer has any effect"))
, Flag "cpp" (NoArg (setExtensionFlag Opt_Cpp))
, Flag "F" (NoArg (setDynFlag Opt_Pp))
, Flag "#include"
( "ParallelArrays", Opt_ParallelArrays, nop ),
( "TemplateHaskell", Opt_TemplateHaskell, checkTemplateHaskellOk ),
( "QuasiQuotes", Opt_QuasiQuotes, nop ),
- ( "Generics", Opt_Generics, nop ),
+ ( "Generics", Opt_Generics,
+ \ _ -> deprecate "it does nothing; look into -XDefaultSignatures and -XDeriveGeneric for generic programming support." ),
( "ImplicitPrelude", Opt_ImplicitPrelude, nop ),
( "RecordWildCards", Opt_RecordWildCards, nop ),
( "NamedFieldPuns", Opt_RecordPuns, nop ),
( "DeriveFunctor", Opt_DeriveFunctor, nop ),
( "DeriveTraversable", Opt_DeriveTraversable, nop ),
( "DeriveFoldable", Opt_DeriveFoldable, nop ),
+ ( "DeriveGeneric", Opt_DeriveGeneric, nop ),
+ ( "DefaultSignatures", Opt_DefaultSignatures, nop ),
( "TypeSynonymInstances", Opt_TypeSynonymInstances, nop ),
( "FlexibleContexts", Opt_FlexibleContexts, nop ),
( "FlexibleInstances", Opt_FlexibleInstances, nop ),
, Opt_DeriveFunctor
, Opt_DeriveFoldable
, Opt_DeriveTraversable
+ , Opt_DeriveGeneric
, Opt_FlexibleContexts
, Opt_FlexibleInstances
, Opt_ConstrainedClassMethods