    {-# LANGUAGE LambdaCase #-}
    module GHC.Driver.DynFlags (
            -- * Dynamic flags and associated configuration types
            DumpFlag(..),
            GeneralFlag(..),
            WarningFlag(..), DiagnosticReason(..),
            Language(..),
            FatalMessager, FlushOut(..),
            ProfAuto(..),
            hasPprDebug, hasNoDebugOutput, hasNoStateHack, hasNoOptCoercion,
            dopt, dopt_set, dopt_unset,
            gopt, gopt_set, gopt_unset,
            wopt, wopt_set, wopt_unset,
            wopt_fatal, wopt_set_fatal, wopt_unset_fatal,
            wopt_set_all_custom, wopt_unset_all_custom,
            wopt_set_all_fatal_custom, wopt_unset_all_fatal_custom,
            wopt_set_custom, wopt_unset_custom,
            wopt_set_fatal_custom, wopt_unset_fatal_custom,
            wopt_any_custom,
            xopt, xopt_set, xopt_unset,
            xopt_set_unlessExplSpec,
            xopt_DuplicateRecordFields,
            xopt_FieldSelectors,
            lang_set,
            DynamicTooState(..), dynamicTooState, setDynamicNow,
            OnOff(..),
            DynFlags(..),
            ParMakeCount(..),
            ways,
            HasDynFlags(..), ContainsDynFlags(..),
            RtsOptsEnabled(..),
            GhcMode(..), isOneShot,
            GhcLink(..), isNoLink,
            PackageFlag(..), PackageArg(..), ModRenaming(..),
            packageFlagsChanged,
            IgnorePackageFlag(..), TrustFlag(..),
            PackageDBFlag(..), PkgDbRef(..),
            Option(..), showOpt,
            DynLibLoader(..),
            positionIndependent,
            optimisationFlags,

            targetProfile,

            -- ** Manipulating DynFlags
            defaultDynFlags,                -- Settings -> DynFlags
            initDynFlags,                   -- DynFlags -> IO DynFlags
            defaultFatalMessager,
            defaultFlushOut,
            optLevelFlags,
            languageExtensions,

            TurnOnFlag,
            turnOn,
            turnOff,

            -- ** System tool settings and locations
            programName, projectVersion,
            ghcUsagePath, ghciUsagePath, topDir, toolDir,
            versionedAppDir, versionedFilePath,
            extraGccViaCFlags, globalPackageDatabasePath,

            -- * Linker/compiler information
            LinkerInfo(..),
            CompilerInfo(..),

            -- * Include specifications
            IncludeSpecs(..), addGlobalInclude, addQuoteInclude, flattenIncludes,
            addImplicitQuoteInclude,

            -- * SDoc
            initSDocContext, initDefaultSDocContext,
            initPromotionTickContext,

            -- * Platform features
            isSse4_2Enabled,
            isAvxEnabled,
            isAvx2Enabled,
            isAvx512cdEnabled,
            isAvx512erEnabled,
            isAvx512fEnabled,
            isAvx512pfEnabled,
            isFmaEnabled,
            isBmiEnabled,
            isBmi2Enabled
    ) where

    import GHC.Prelude

    import GHC.Platform
    import GHC.Platform.Ways
    import GHC.Platform.Profile

    import GHC.CmmToAsm.CFG.Weight
    import GHC.Core.Unfold
    import GHC.Data.Bool
    import GHC.Data.EnumSet (EnumSet)
    import GHC.Data.Maybe
    import GHC.Builtin.Names ( mAIN_NAME )
    import GHC.Driver.Backend
    import GHC.Driver.Flags
    import GHC.Driver.Phases ( Phase(..), phaseInputExt )
    import GHC.Driver.Plugins.External
    import GHC.Settings
    import GHC.Settings.Constants
    import GHC.Types.Basic ( IntWithInf, treatZeroAsInf )
    import GHC.Types.Error (DiagnosticReason(..))
    import GHC.Types.ProfAuto
    import GHC.Types.SafeHaskell
    import GHC.Types.SrcLoc
    import GHC.Unit.Module
    import GHC.Unit.Module.Warnings
    import GHC.Utils.CliOption
    import GHC.SysTools.Terminal ( stderrSupportsAnsiColors )
    import GHC.UniqueSubdir (uniqueSubdir)
    import GHC.Utils.Outputable
    import GHC.Utils.Panic
    import GHC.Utils.TmpFs

    import qualified GHC.Types.FieldLabel as FieldLabel
    import qualified GHC.Utils.Ppr.Colour as Col
    import qualified GHC.Data.EnumSet as EnumSet

    import GHC.Core.Opt.CallerCC.Types

    import Control.Monad (msum, (<=<))
    import Control.Monad.Trans.Class (lift)
    import Control.Monad.Trans.Except (ExceptT)
    import Control.Monad.Trans.Reader (ReaderT)
    import Control.Monad.Trans.Writer (WriterT)
    import Data.Word
    import System.IO
    import System.IO.Error (catchIOError)
    import System.Environment (lookupEnv)
    import System.FilePath (normalise, (</>))
    import System.Directory
    import GHC.Foreign (withCString, peekCString)

    import qualified Data.Set as Set

    import qualified GHC.LanguageExtensions as LangExt

    -- -----------------------------------------------------------------------------
    -- DynFlags

    -- | Contains not only a collection of 'GeneralFlag's but also a plethora of
    -- information relating to the compilation of a single file or GHC session
    data DynFlags = DynFlags {
      DynFlags -> GhcMode
    ghcMode               :: GhcMode,
      DynFlags -> GhcLink
    ghcLink               :: GhcLink,
      DynFlags -> Backend
    backend               :: !Backend,
       -- ^ The backend to use (if any).
       --
       -- Whenever you change the backend, also make sure to set 'ghcLink' to
       -- something sensible.
       --
       -- 'NoBackend' can be used to avoid generating any output, however, note that:
       --
       --  * If a program uses Template Haskell the typechecker may need to run code
       --    from an imported module.  To facilitate this, code generation is enabled
       --    for modules imported by modules that use template haskell, using the
       --    default backend for the platform.
       --    See Note [-fno-code mode].

      -- formerly Settings
      DynFlags -> GhcNameVersion
    ghcNameVersion    :: {-# UNPACK #-} !GhcNameVersion,
      DynFlags -> FileSettings
    fileSettings      :: {-# UNPACK #-} !FileSettings,
      DynFlags -> Platform
    targetPlatform    :: Platform,       -- Filled in by SysTools
      DynFlags -> ToolSettings
    toolSettings      :: {-# UNPACK #-} !ToolSettings,
      DynFlags -> PlatformMisc
    platformMisc      :: {-# UNPACK #-} !PlatformMisc,
      DynFlags -> [(String, String)]
    rawSettings       :: [(String, String)],
      DynFlags -> TempDir
    tmpDir            :: TempDir,

      DynFlags -> Int
    llvmOptLevel          :: Int,         -- ^ LLVM optimisation level
      DynFlags -> Int
    verbosity             :: Int,         -- ^ Verbosity level: see Note [Verbosity levels]
      DynFlags -> Int
    debugLevel            :: Int,         -- ^ How much debug information to produce
      DynFlags -> Int
    simplPhases           :: Int,         -- ^ Number of simplifier phases
      DynFlags -> Int
    maxSimplIterations    :: Int,         -- ^ Max simplifier iterations
      DynFlags -> Maybe String
    ruleCheck             :: Maybe String,
      DynFlags -> [Int]
    strictnessBefore      :: [Int],       -- ^ Additional demand analysis

      DynFlags -> Maybe ParMakeCount
    parMakeCount          :: Maybe ParMakeCount,
        -- ^ The number of modules to compile in parallel
        --   If unspecified, compile with a single job.

      DynFlags -> Bool
    enableTimeStats       :: Bool,        -- ^ Enable RTS timing statistics?
      DynFlags -> Maybe Int
    ghcHeapSize           :: Maybe Int,   -- ^ The heap size to set.

      DynFlags -> Maybe Int
    maxRelevantBinds      :: Maybe Int,   -- ^ Maximum number of bindings from the type envt
                                            --   to show in type error messages
      DynFlags -> Maybe Int
    maxValidHoleFits      :: Maybe Int,   -- ^ Maximum number of hole fits to show
                                            --   in typed hole error messages
      DynFlags -> Maybe Int
    maxRefHoleFits        :: Maybe Int,   -- ^ Maximum number of refinement hole
                                            --   fits to show in typed hole error
                                            --   messages
      DynFlags -> Maybe Int
    refLevelHoleFits      :: Maybe Int,   -- ^ Maximum level of refinement for
                                            --   refinement hole fits in typed hole
                                            --   error messages
      DynFlags -> Int
    maxUncoveredPatterns  :: Int,         -- ^ Maximum number of unmatched patterns to show
                                            --   in non-exhaustiveness warnings
      DynFlags -> Int
    maxPmCheckModels      :: Int,         -- ^ Soft limit on the number of models
                                            --   the pattern match checker checks
                                            --   a pattern against. A safe guard
                                            --   against exponential blow-up.
      DynFlags -> Int
    simplTickFactor       :: Int,         -- ^ Multiplier for simplifier ticks
      DynFlags -> Int
    dmdUnboxWidth         :: !Int,        -- ^ Whether DmdAnal should optimistically put an
                                            --   Unboxed demand on returned products with at most
                                            --   this number of fields
      DynFlags -> Maybe Int
    specConstrThreshold   :: Maybe Int,   -- ^ Threshold for SpecConstr
      DynFlags -> Maybe Int
    specConstrCount       :: Maybe Int,   -- ^ Max number of specialisations for any one function
      DynFlags -> Int
    specConstrRecursive   :: Int,         -- ^ Max number of specialisations for recursive types
                                            --   Not optional; otherwise ForceSpecConstr can diverge.
      DynFlags -> Maybe Word
    binBlobThreshold      :: Maybe Word,  -- ^ Binary literals (e.g. strings) whose size is above
                                            --   this threshold will be dumped in a binary file
                                            --   by the assembler code generator. 0 and Nothing disables
                                            --   this feature. See 'GHC.StgToCmm.Config'.
      DynFlags -> Maybe Int
    liberateCaseThreshold :: Maybe Int,   -- ^ Threshold for LiberateCase
      DynFlags -> Maybe Int
    floatLamArgs          :: Maybe Int,   -- ^ Arg count for lambda floating
                                            --   See 'GHC.Core.Opt.Monad.FloatOutSwitches'

      DynFlags -> Maybe Int
    liftLamsRecArgs       :: Maybe Int,   -- ^ Maximum number of arguments after lambda lifting a
                                            --   recursive function.
      DynFlags -> Maybe Int
    liftLamsNonRecArgs    :: Maybe Int,   -- ^ Maximum number of arguments after lambda lifting a
                                            --   non-recursive function.
      DynFlags -> Bool
    liftLamsKnown         :: Bool,        -- ^ Lambda lift even when this turns a known call
                                            --   into an unknown call.

      DynFlags -> Maybe Int
    cmmProcAlignment      :: Maybe Int,   -- ^ Align Cmm functions at this boundary or use default.

      DynFlags -> Int
    historySize           :: Int,         -- ^ Simplification history size

      DynFlags -> [String]
    importPaths           :: [FilePath],
      DynFlags -> ModuleName
    mainModuleNameIs      :: ModuleName,
      DynFlags -> Maybe String
    mainFunIs             :: Maybe String,
      DynFlags -> IntWithInf
    reductionDepth        :: IntWithInf,   -- ^ Typechecker maximum stack depth
      DynFlags -> IntWithInf
    solverIterations      :: IntWithInf,   -- ^ Number of iterations in the constraints solver
                                             --   Typically only 1 is needed
      DynFlags -> Int
    givensFuel            :: Int,          -- ^ Number of layers of superclass expansion for givens
                                             --   Should be < solverIterations
                                             --   See Note [Expanding Recursive Superclasses and ExpansionFuel]
      DynFlags -> Int
    wantedsFuel           :: Int,          -- ^ Number of layers of superclass expansion for wanteds
                                             --   Should be < givensFuel
                                             --   See Note [Expanding Recursive Superclasses and ExpansionFuel]
      DynFlags -> Int
    qcsFuel                :: Int,          -- ^ Number of layers of superclass expansion for quantified constraints
                                             --   Should be < givensFuel
                                             --   See Note [Expanding Recursive Superclasses and ExpansionFuel]
      DynFlags -> UnitId
    homeUnitId_             :: UnitId,                 -- ^ Target home unit-id
      DynFlags -> Maybe UnitId
    homeUnitInstanceOf_     :: Maybe UnitId,           -- ^ Id of the unit to instantiate
      DynFlags -> [(ModuleName, Module)]
    homeUnitInstantiations_ :: [(ModuleName, Module)], -- ^ Module instantiations

      -- Note [Filepaths and Multiple Home Units]
      DynFlags -> Maybe String
    workingDirectory      :: Maybe FilePath,
      DynFlags -> Maybe String
    thisPackageName       :: Maybe String, -- ^ What the package is called, use with multiple home units
      DynFlags -> Set ModuleName
    hiddenModules         :: Set.Set ModuleName,
      DynFlags -> Set ModuleName
    reexportedModules     :: Set.Set ModuleName,

      -- ways
      DynFlags -> Ways
    targetWays_           :: Ways,         -- ^ Target way flags from the command line

      -- For object splitting
      DynFlags -> Maybe (String, Int)
    splitInfo             :: Maybe (String,Int),

      -- paths etc.
      DynFlags -> Maybe String
    objectDir             :: Maybe String,
      DynFlags -> Maybe String
    dylibInstallName      :: Maybe String,
      DynFlags -> Maybe String
    hiDir                 :: Maybe String,
      DynFlags -> Maybe String
    hieDir                :: Maybe String,
      DynFlags -> Maybe String
    stubDir               :: Maybe String,
      DynFlags -> Maybe String
    dumpDir               :: Maybe String,

      DynFlags -> String
    objectSuf_            :: String,
      DynFlags -> String
    hcSuf                 :: String,
      DynFlags -> String
    hiSuf_                :: String,
      DynFlags -> String
    hieSuf                :: String,

      DynFlags -> String
    dynObjectSuf_         :: String,
      DynFlags -> String
    dynHiSuf_             :: String,

      DynFlags -> Maybe String
    outputFile_           :: Maybe String,
      DynFlags -> Maybe String
    dynOutputFile_        :: Maybe String,
      DynFlags -> Maybe String
    outputHi              :: Maybe String,
      DynFlags -> Maybe String
    dynOutputHi           :: Maybe String,
      DynFlags -> DynLibLoader
    dynLibLoader          :: DynLibLoader,

      DynFlags -> Bool
    dynamicNow            :: !Bool, -- ^ Indicate if we are now generating dynamic output
                                      -- because of -dynamic-too. This predicate is
                                      -- used to query the appropriate fields
                                      -- (outputFile/dynOutputFile, ways, etc.)

      -- | This defaults to 'non-module'. It can be set by
      -- 'GHC.Driver.Pipeline.setDumpPrefix' or 'ghc.GHCi.UI.runStmt' based on
      -- where its output is going.
      DynFlags -> String
    dumpPrefix            :: FilePath,

      -- | Override the 'dumpPrefix' set by 'GHC.Driver.Pipeline.setDumpPrefix'
      --    or 'ghc.GHCi.UI.runStmt'.
      --    Set by @-ddump-file-prefix@
      DynFlags -> Maybe String
    dumpPrefixForce       :: Maybe FilePath,

      DynFlags -> [Option]
    ldInputs              :: [Option],

      DynFlags -> IncludeSpecs
    includePaths          :: IncludeSpecs,
      DynFlags -> [String]
    libraryPaths          :: [String],
      DynFlags -> [String]
    frameworkPaths        :: [String],    -- used on darwin only
      DynFlags -> [String]
    cmdlineFrameworks     :: [String],    -- ditto

      DynFlags -> Maybe String
    rtsOpts               :: Maybe String,
      DynFlags -> RtsOptsEnabled
    rtsOptsEnabled        :: RtsOptsEnabled,
      DynFlags -> Bool
    rtsOptsSuggestions    :: Bool,

      DynFlags -> String
    hpcDir                :: String,      -- ^ Path to store the .mix files

      -- Plugins
      DynFlags -> [ModuleName]
    pluginModNames        :: [ModuleName],
        -- ^ the @-fplugin@ flags given on the command line, in *reverse*
        -- order that they're specified on the command line.
      DynFlags -> [(ModuleName, String)]
    pluginModNameOpts     :: [(ModuleName,String)],
      DynFlags -> [String]
    frontendPluginOpts    :: [String],
        -- ^ the @-ffrontend-opt@ flags given on the command line, in *reverse*
        -- order that they're specified on the command line.

      DynFlags -> [ExternalPluginSpec]
    externalPluginSpecs   :: [ExternalPluginSpec],
        -- ^ External plugins loaded from shared libraries

      --  For ghc -M
      DynFlags -> String
    depMakefile           :: FilePath,
      DynFlags -> Bool
    depIncludePkgDeps     :: Bool,
      DynFlags -> Bool
    depIncludeCppDeps     :: Bool,
      DynFlags -> [ModuleName]
    depExcludeMods        :: [ModuleName],
      DynFlags -> [String]
    depSuffixes           :: [String],

      --  Package flags
      DynFlags -> [PackageDBFlag]
    packageDBFlags        :: [PackageDBFlag],
            -- ^ The @-package-db@ flags given on the command line, In
            -- *reverse* order that they're specified on the command line.
            -- This is intended to be applied with the list of "initial"
            -- package databases derived from @GHC_PACKAGE_PATH@; see
            -- 'getUnitDbRefs'.

      DynFlags -> [IgnorePackageFlag]
    ignorePackageFlags    :: [IgnorePackageFlag],
            -- ^ The @-ignore-package@ flags from the command line.
            -- In *reverse* order that they're specified on the command line.
      DynFlags -> [PackageFlag]
    packageFlags          :: [PackageFlag],
            -- ^ The @-package@ and @-hide-package@ flags from the command-line.
            -- In *reverse* order that they're specified on the command line.
      DynFlags -> [PackageFlag]
    pluginPackageFlags    :: [PackageFlag],
            -- ^ The @-plugin-package-id@ flags from command line.
            -- In *reverse* order that they're specified on the command line.
      DynFlags -> [TrustFlag]
    trustFlags            :: [TrustFlag],
            -- ^ The @-trust@ and @-distrust@ flags.
            -- In *reverse* order that they're specified on the command line.
      DynFlags -> Maybe String
    packageEnv            :: Maybe FilePath,
            -- ^ Filepath to the package environment file (if overriding default)

      -- hsc dynamic flags
      DynFlags -> EnumSet DumpFlag
    dumpFlags             :: EnumSet DumpFlag,
      DynFlags -> EnumSet GeneralFlag
    generalFlags          :: EnumSet GeneralFlag,
      DynFlags -> EnumSet WarningFlag
    warningFlags          :: EnumSet WarningFlag,
      DynFlags -> EnumSet WarningFlag
    fatalWarningFlags     :: EnumSet WarningFlag,
      DynFlags -> WarningCategorySet
    customWarningCategories      :: WarningCategorySet, -- See Note [Warning categories]
      DynFlags -> WarningCategorySet
    fatalCustomWarningCategories :: WarningCategorySet, -- in GHC.Unit.Module.Warnings
      -- Don't change this without updating extensionFlags:
      DynFlags -> Maybe Language
    language              :: Maybe Language,
      -- | Safe Haskell mode
      DynFlags -> SafeHaskellMode
    safeHaskell           :: SafeHaskellMode,
      DynFlags -> Bool
    safeInfer             :: Bool,
      DynFlags -> Bool
    safeInferred          :: Bool,
      -- We store the location of where some extension and flags were turned on so
      -- we can produce accurate error messages when Safe Haskell fails due to
      -- them.
      DynFlags -> SrcSpan
    thOnLoc               :: SrcSpan,
      DynFlags -> SrcSpan
    newDerivOnLoc         :: SrcSpan,
      DynFlags -> SrcSpan
    deriveViaOnLoc        :: SrcSpan,
      DynFlags -> SrcSpan
    overlapInstLoc        :: SrcSpan,
      DynFlags -> SrcSpan
    incoherentOnLoc       :: SrcSpan,
      DynFlags -> SrcSpan
    pkgTrustOnLoc         :: SrcSpan,
      DynFlags -> SrcSpan
    warnSafeOnLoc         :: SrcSpan,
      DynFlags -> SrcSpan
    warnUnsafeOnLoc       :: SrcSpan,
      DynFlags -> SrcSpan
    trustworthyOnLoc      :: SrcSpan,
      -- Don't change this without updating extensionFlags:
      -- Here we collect the settings of the language extensions
      -- from the command line, the ghci config file and
      -- from interactive :set / :seti commands.
      DynFlags -> [OnOff Extension]
    extensions            :: [OnOff LangExt.Extension],
      -- extensionFlags should always be equal to
      --     flattenExtensionFlags language extensions
      -- LangExt.Extension is defined in libraries/ghc-boot so that it can be used
      -- by template-haskell
      DynFlags -> EnumSet Extension
    extensionFlags        :: EnumSet LangExt.Extension,

      -- | Unfolding control
      -- See Note [Discounts and thresholds] in GHC.Core.Unfold
      DynFlags -> UnfoldingOpts
    unfoldingOpts         :: !UnfoldingOpts,

      DynFlags -> Int
    maxWorkerArgs         :: Int,

      DynFlags -> Int
    ghciHistSize          :: Int,

      DynFlags -> FlushOut
    flushOut              :: FlushOut,

      DynFlags -> Maybe String
    ghcVersionFile        :: Maybe FilePath,
      DynFlags -> Maybe String
    haddockOptions        :: Maybe String,

      -- | GHCi scripts specified by -ghci-script, in reverse order
      DynFlags -> [String]
    ghciScripts           :: [String],

      -- Output style options
      DynFlags -> Int
    pprUserLength         :: Int,
      DynFlags -> Int
    pprCols               :: Int,

      DynFlags -> Bool
    useUnicode            :: Bool,
      DynFlags -> OverridingBool
    useColor              :: OverridingBool,
      DynFlags -> Bool
    canUseColor           :: Bool,
      DynFlags -> OverridingBool
    useErrorLinks         :: OverridingBool,
      DynFlags -> Bool
    canUseErrorLinks      :: Bool,
      DynFlags -> Scheme
    colScheme             :: Col.Scheme,

      -- | what kind of {-# SCC #-} to add automatically
      DynFlags -> ProfAuto
    profAuto              :: ProfAuto,
      DynFlags -> [CallerCcFilter]
    callerCcFilters       :: [CallerCcFilter],

      DynFlags -> Maybe String
    interactivePrint      :: Maybe String,

      -- | Machine dependent flags (-m\<blah> stuff)
      DynFlags -> Maybe SseVersion
    sseVersion            :: Maybe SseVersion,
      DynFlags -> Maybe BmiVersion
    bmiVersion            :: Maybe BmiVersion,
      DynFlags -> Bool
    avx                   :: Bool,
      DynFlags -> Bool
    avx2                  :: Bool,
      DynFlags -> Bool
    avx512cd              :: Bool, -- Enable AVX-512 Conflict Detection Instructions.
      DynFlags -> Bool
    avx512er              :: Bool, -- Enable AVX-512 Exponential and Reciprocal Instructions.
      DynFlags -> Bool
    avx512f               :: Bool, -- Enable AVX-512 instructions.
      DynFlags -> Bool
    avx512pf              :: Bool, -- Enable AVX-512 PreFetch Instructions.
      DynFlags -> Bool
    fma                   :: Bool, -- ^ Enable FMA instructions.

      -- Constants used to control the amount of optimization done.

      -- | Max size, in bytes, of inline array allocations.
      DynFlags -> Int
    maxInlineAllocSize    :: Int,

      -- | Only inline memcpy if it generates no more than this many
      -- pseudo (roughly: Cmm) instructions.
      DynFlags -> Int
    maxInlineMemcpyInsns  :: Int,

      -- | Only inline memset if it generates no more than this many
      -- pseudo (roughly: Cmm) instructions.
      DynFlags -> Int
    maxInlineMemsetInsns  :: Int,

      -- | Reverse the order of error messages in GHC/GHCi
      DynFlags -> Bool
    reverseErrors         :: Bool,

      -- | Limit the maximum number of errors to show
      DynFlags -> Maybe Int
    maxErrors             :: Maybe Int,

      -- | Unique supply configuration for testing build determinism
      DynFlags -> Word64
    initialUnique         :: Word64,
      DynFlags -> Int
    uniqueIncrement       :: Int,
        -- 'Int' because it can be used to test uniques in decreasing order.

      -- | Temporary: CFG Edge weights for fast iterations
      DynFlags -> Weights
    cfgWeights            :: Weights
    }

    class HasDynFlags m where
        getDynFlags :: m DynFlags

    {- It would be desirable to have the more generalised

      instance (MonadTrans t, Monad m, HasDynFlags m) => HasDynFlags (t m) where
          getDynFlags = lift getDynFlags

    instance definition. However, that definition would overlap with the
    `HasDynFlags (GhcT m)` instance. Instead we define instances for a
    couple of common Monad transformers explicitly. -}

    instance (Monoid a, Monad m, HasDynFlags m) => HasDynFlags (WriterT a m) where
        getDynFlags :: WriterT a m DynFlags
    getDynFlags = m DynFlags -> WriterT a m DynFlags
    forall (m :: * -> *) a. Monad m => m a -> WriterT a m a
    forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
    (MonadTrans t, Monad m) =>
    m a -> t m a
    lift m DynFlags
    forall (m :: * -> *). HasDynFlags m => m DynFlags
    getDynFlags

    instance (Monad m, HasDynFlags m) => HasDynFlags (ReaderT a m) where
        getDynFlags :: ReaderT a m DynFlags
    getDynFlags = m DynFlags -> ReaderT a m DynFlags
    forall (m :: * -> *) a. Monad m => m a -> ReaderT a m a
    forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
    (MonadTrans t, Monad m) =>
    m a -> t m a
    lift m DynFlags
    forall (m :: * -> *). HasDynFlags m => m DynFlags
    getDynFlags

    instance (Monad m, HasDynFlags m) => HasDynFlags (MaybeT m) where
        getDynFlags :: MaybeT m DynFlags
    getDynFlags = m DynFlags -> MaybeT m DynFlags
    forall (m :: * -> *) a. Monad m => m a -> MaybeT m a
    forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
    (MonadTrans t, Monad m) =>
    m a -> t m a
    lift m DynFlags
    forall (m :: * -> *). HasDynFlags m => m DynFlags
    getDynFlags

    instance (Monad m, HasDynFlags m) => HasDynFlags (ExceptT e m) where
        getDynFlags :: ExceptT e m DynFlags
    getDynFlags = m DynFlags -> ExceptT e m DynFlags
    forall (m :: * -> *) a. Monad m => m a -> ExceptT e m a
    forall (t :: (* -> *) -> * -> *) (m :: * -> *) a.
    (MonadTrans t, Monad m) =>
    m a -> t m a
    lift m DynFlags
    forall (m :: * -> *). HasDynFlags m => m DynFlags
    getDynFlags

    class ContainsDynFlags t where
        extractDynFlags :: t -> DynFlags

    -----------------------------------------------------------------------------

    -- | Used by 'GHC.runGhc' to partially initialize a new 'DynFlags' value
    initDynFlags :: DynFlags -> IO DynFlags
    initDynFlags :: DynFlags -> IO DynFlags
    initDynFlags DynFlags
    dflags = do
     let
     -- This is not bulletproof: we test that 'localeEncoding' is Unicode-capable,
     -- but potentially 'hGetEncoding' 'stdout' might be different. Still good enough.
     canUseUnicode <- do let enc :: TextEncoding
    enc = TextEncoding
    localeEncoding
                             str :: String
    str = String
    "‘’"
                         (TextEncoding -> String -> (CString -> IO Bool) -> IO Bool
    forall a. TextEncoding -> String -> (CString -> IO a) -> IO a
    withCString TextEncoding
    enc String
    str ((CString -> IO Bool) -> IO Bool)
    -> (CString -> IO Bool) -> IO Bool
    forall a b. (a -> b) -> a -> b
    $ \CString
    cstr ->
                              do str' <- TextEncoding -> CString -> IO String
    peekCString TextEncoding
    enc CString
    cstr
                                 return (str == str'))
                             IO Bool -> (IOError -> IO Bool) -> IO Bool
    forall a. IO a -> (IOError -> IO a) -> IO a
    `catchIOError` \IOError
    _ -> Bool -> IO Bool
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return Bool
    False
     ghcNoUnicodeEnv <- lookupEnv "GHC_NO_UNICODE"
     let useUnicode' = Maybe String -> Bool
    forall a. Maybe a -> Bool
    isNothing Maybe String
    ghcNoUnicodeEnv Bool -> Bool -> Bool
    && Bool
    canUseUnicode
     maybeGhcColorsEnv  <- lookupEnv "GHC_COLORS"
     maybeGhcColoursEnv <- lookupEnv "GHC_COLOURS"
     let adjustCols (Just String
    env) = String -> (OverridingBool, Scheme) -> (OverridingBool, Scheme)
    Col.parseScheme String
    env
         adjustCols Maybe String
    Nothing    = (OverridingBool, Scheme) -> (OverridingBool, Scheme)
    forall a. a -> a
    id
     let (useColor', colScheme') =
           (adjustCols maybeGhcColoursEnv . adjustCols maybeGhcColorsEnv)
           (useColor dflags, colScheme dflags)
     tmp_dir <- normalise <$> getTemporaryDirectory
     return dflags{
            useUnicode    = useUnicode',
            useColor      = useColor',
            canUseColor   = stderrSupportsAnsiColors,
            -- if the terminal supports color, we assume it supports links as well
            canUseErrorLinks = stderrSupportsAnsiColors,
            colScheme     = colScheme',
            tmpDir        = TempDir tmp_dir
            }

    -- | The normal 'DynFlags'. Note that they are not suitable for use in this form
    -- and must be fully initialized by 'GHC.runGhc' first.
    defaultDynFlags :: Settings -> DynFlags
    defaultDynFlags :: Settings -> DynFlags
    defaultDynFlags Settings
    mySettings =
    -- See Note [Updating flag description in the User's Guide]
         DynFlags {
            ghcMode :: GhcMode
    ghcMode                 = GhcMode
    CompManager,
            ghcLink :: GhcLink
    ghcLink                 = GhcLink
    LinkBinary,
            backend :: Backend
    backend                 = Platform -> Backend
    platformDefaultBackend (Settings -> Platform
    sTargetPlatform Settings
    mySettings),
            verbosity :: Int
    verbosity               = Int
    0,
            debugLevel :: Int
    debugLevel              = Int
    0,
            simplPhases :: Int
    simplPhases             = Int
    2,
            maxSimplIterations :: Int
    maxSimplIterations      = Int
    4,
            ruleCheck :: Maybe String
    ruleCheck               = Maybe String
    forall a. Maybe a
    Nothing,
            binBlobThreshold :: Maybe Word
    binBlobThreshold        = Word -> Maybe Word
    forall a. a -> Maybe a
    Just Word
    500000, -- 500K is a good default (see #16190)
            maxRelevantBinds :: Maybe Int
    maxRelevantBinds        = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    6,
            maxValidHoleFits :: Maybe Int
    maxValidHoleFits   = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    6,
            maxRefHoleFits :: Maybe Int
    maxRefHoleFits     = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    6,
            refLevelHoleFits :: Maybe Int
    refLevelHoleFits   = Maybe Int
    forall a. Maybe a
    Nothing,
            maxUncoveredPatterns :: Int
    maxUncoveredPatterns    = Int
    4,
            maxPmCheckModels :: Int
    maxPmCheckModels        = Int
    30,
            simplTickFactor :: Int
    simplTickFactor         = Int
    100,
            dmdUnboxWidth :: Int
    dmdUnboxWidth           = Int
    3,      -- Default: Assume an unboxed demand on function bodies returning a triple
            specConstrThreshold :: Maybe Int
    specConstrThreshold     = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    2000,
            specConstrCount :: Maybe Int
    specConstrCount         = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    3,
            specConstrRecursive :: Int
    specConstrRecursive     = Int
    3,
            liberateCaseThreshold :: Maybe Int
    liberateCaseThreshold   = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    2000,
            floatLamArgs :: Maybe Int
    floatLamArgs            = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    0, -- Default: float only if no fvs
            liftLamsRecArgs :: Maybe Int
    liftLamsRecArgs         = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    5, -- Default: the number of available argument hardware registers on x86_64
            liftLamsNonRecArgs :: Maybe Int
    liftLamsNonRecArgs      = Int -> Maybe Int
    forall a. a -> Maybe a
    Just Int
    5, -- Default: the number of available argument hardware registers on x86_64
            liftLamsKnown :: Bool
    liftLamsKnown           = Bool
    False,  -- Default: don't turn known calls into unknown ones
            cmmProcAlignment :: Maybe Int
    cmmProcAlignment        = Maybe Int
    forall a. Maybe a
    Nothing,

            historySize :: Int
    historySize             = Int
    20,
            strictnessBefore :: [Int]
    strictnessBefore        = [],

            parMakeCount :: Maybe ParMakeCount
    parMakeCount            = Maybe ParMakeCount
    forall a. Maybe a
    Nothing,

            enableTimeStats :: Bool
    enableTimeStats         = Bool
    False,
            ghcHeapSize :: Maybe Int
    ghcHeapSize             = Maybe Int
    forall a. Maybe a
    Nothing,

            importPaths :: [String]
    importPaths             = [String
    "."],
            mainModuleNameIs :: ModuleName
    mainModuleNameIs        = ModuleName
    mAIN_NAME,
            mainFunIs :: Maybe String
    mainFunIs               = Maybe String
    forall a. Maybe a
    Nothing,
            reductionDepth :: IntWithInf
    reductionDepth          = Int -> IntWithInf
    treatZeroAsInf Int
    mAX_REDUCTION_DEPTH,
            solverIterations :: IntWithInf
    solverIterations        = Int -> IntWithInf
    treatZeroAsInf Int
    mAX_SOLVER_ITERATIONS,
            givensFuel :: Int
    givensFuel              = Int
    mAX_GIVENS_FUEL,
            wantedsFuel :: Int
    wantedsFuel             = Int
    mAX_WANTEDS_FUEL,
            qcsFuel :: Int
    qcsFuel                 = Int
    mAX_QC_FUEL,

            homeUnitId_ :: UnitId
    homeUnitId_             = UnitId
    mainUnitId,
            homeUnitInstanceOf_ :: Maybe UnitId
    homeUnitInstanceOf_     = Maybe UnitId
    forall a. Maybe a
    Nothing,
            homeUnitInstantiations_ :: [(ModuleName, Module)]
    homeUnitInstantiations_ = [],

            workingDirectory :: Maybe String
    workingDirectory        = Maybe String
    forall a. Maybe a
    Nothing,
            thisPackageName :: Maybe String
    thisPackageName         = Maybe String
    forall a. Maybe a
    Nothing,
            hiddenModules :: Set ModuleName
    hiddenModules           = Set ModuleName
    forall a. Set a
    Set.empty,
            reexportedModules :: Set ModuleName
    reexportedModules       = Set ModuleName
    forall a. Set a
    Set.empty,

            objectDir :: Maybe String
    objectDir               = Maybe String
    forall a. Maybe a
    Nothing,
            dylibInstallName :: Maybe String
    dylibInstallName        = Maybe String
    forall a. Maybe a
    Nothing,
            hiDir :: Maybe String
    hiDir                   = Maybe String
    forall a. Maybe a
    Nothing,
            hieDir :: Maybe String
    hieDir                  = Maybe String
    forall a. Maybe a
    Nothing,
            stubDir :: Maybe String
    stubDir                 = Maybe String
    forall a. Maybe a
    Nothing,
            dumpDir :: Maybe String
    dumpDir                 = Maybe String
    forall a. Maybe a
    Nothing,

            objectSuf_ :: String
    objectSuf_              = Phase -> String
    phaseInputExt Phase
    StopLn,
            hcSuf :: String
    hcSuf                   = Phase -> String
    phaseInputExt Phase
    HCc,
            hiSuf_ :: String
    hiSuf_                  = String
    "hi",
            hieSuf :: String
    hieSuf                  = String
    "hie",

            dynObjectSuf_ :: String
    dynObjectSuf_           = String
    "dyn_" String -> String -> String
    forall a. [a] -> [a] -> [a]
    ++ Phase -> String
    phaseInputExt Phase
    StopLn,
            dynHiSuf_ :: String
    dynHiSuf_               = String
    "dyn_hi",
            dynamicNow :: Bool
    dynamicNow              = Bool
    False,

            pluginModNames :: [ModuleName]
    pluginModNames          = [],
            pluginModNameOpts :: [(ModuleName, String)]
    pluginModNameOpts       = [],
            frontendPluginOpts :: [String]
    frontendPluginOpts      = [],

            externalPluginSpecs :: [ExternalPluginSpec]
    externalPluginSpecs     = [],

            outputFile_ :: Maybe String
    outputFile_             = Maybe String
    forall a. Maybe a
    Nothing,
            dynOutputFile_ :: Maybe String
    dynOutputFile_          = Maybe String
    forall a. Maybe a
    Nothing,
            outputHi :: Maybe String
    outputHi                = Maybe String
    forall a. Maybe a
    Nothing,
            dynOutputHi :: Maybe String
    dynOutputHi             = Maybe String
    forall a. Maybe a
    Nothing,
            dynLibLoader :: DynLibLoader
    dynLibLoader            = DynLibLoader
    SystemDependent,
            dumpPrefix :: String
    dumpPrefix              = String
    "non-module.",
            dumpPrefixForce :: Maybe String
    dumpPrefixForce         = Maybe String
    forall a. Maybe a
    Nothing,
            ldInputs :: [Option]
    ldInputs                = [],
            includePaths :: IncludeSpecs
    includePaths            = [String] -> [String] -> [String] -> IncludeSpecs
    IncludeSpecs [] [] [],
            libraryPaths :: [String]
    libraryPaths            = [],
            frameworkPaths :: [String]
    frameworkPaths          = [],
            cmdlineFrameworks :: [String]
    cmdlineFrameworks       = [],
            rtsOpts :: Maybe String
    rtsOpts                 = Maybe String
    forall a. Maybe a
    Nothing,
            rtsOptsEnabled :: RtsOptsEnabled
    rtsOptsEnabled          = RtsOptsEnabled
    RtsOptsSafeOnly,
            rtsOptsSuggestions :: Bool
    rtsOptsSuggestions      = Bool
    True,

            hpcDir :: String
    hpcDir                  = String
    ".hpc",

            packageDBFlags :: [PackageDBFlag]
    packageDBFlags          = [],
            packageFlags :: [PackageFlag]
    packageFlags            = [],
            pluginPackageFlags :: [PackageFlag]
    pluginPackageFlags      = [],
            ignorePackageFlags :: [IgnorePackageFlag]
    ignorePackageFlags      = [],
            trustFlags :: [TrustFlag]
    trustFlags              = [],
            packageEnv :: Maybe String
    packageEnv              = Maybe String
    forall a. Maybe a
    Nothing,
            targetWays_ :: Ways
    targetWays_             = Ways
    forall a. Set a
    Set.empty,
            splitInfo :: Maybe (String, Int)
    splitInfo               = Maybe (String, Int)
    forall a. Maybe a
    Nothing,

            ghcNameVersion :: GhcNameVersion
    ghcNameVersion = Settings -> GhcNameVersion
    sGhcNameVersion Settings
    mySettings,
            fileSettings :: FileSettings
    fileSettings = Settings -> FileSettings
    sFileSettings Settings
    mySettings,
            toolSettings :: ToolSettings
    toolSettings = Settings -> ToolSettings
    sToolSettings Settings
    mySettings,
            targetPlatform :: Platform
    targetPlatform = Settings -> Platform
    sTargetPlatform Settings
    mySettings,
            platformMisc :: PlatformMisc
    platformMisc = Settings -> PlatformMisc
    sPlatformMisc Settings
    mySettings,
            rawSettings :: [(String, String)]
    rawSettings = Settings -> [(String, String)]
    sRawSettings Settings
    mySettings,

            tmpDir :: TempDir
    tmpDir                  = String -> TempDir
    forall a. HasCallStack => String -> a
    panic String
    "defaultDynFlags: uninitialized tmpDir",

            llvmOptLevel :: Int
    llvmOptLevel            = Int
    0,

            -- ghc -M values
            depMakefile :: String
    depMakefile       = String
    "Makefile",
            depIncludePkgDeps :: Bool
    depIncludePkgDeps = Bool
    False,
            depIncludeCppDeps :: Bool
    depIncludeCppDeps = Bool
    False,
            depExcludeMods :: [ModuleName]
    depExcludeMods    = [],
            depSuffixes :: [String]
    depSuffixes       = [],
            -- end of ghc -M values
            ghcVersionFile :: Maybe String
    ghcVersionFile = Maybe String
    forall a. Maybe a
    Nothing,
            haddockOptions :: Maybe String
    haddockOptions = Maybe String
    forall a. Maybe a
    Nothing,
            dumpFlags :: EnumSet DumpFlag
    dumpFlags = EnumSet DumpFlag
    forall {k} (a :: k). EnumSet a
    EnumSet.empty,
            generalFlags :: EnumSet GeneralFlag
    generalFlags = [GeneralFlag] -> EnumSet GeneralFlag
    forall a. Enum a => [a] -> EnumSet a
    EnumSet.fromList (Settings -> [GeneralFlag]
    defaultFlags Settings
    mySettings),
            warningFlags :: EnumSet WarningFlag
    warningFlags = [WarningFlag] -> EnumSet WarningFlag
    forall a. Enum a => [a] -> EnumSet a
    EnumSet.fromList [WarningFlag]
    standardWarnings,
            fatalWarningFlags :: EnumSet WarningFlag
    fatalWarningFlags = EnumSet WarningFlag
    forall {k} (a :: k). EnumSet a
    EnumSet.empty,
            customWarningCategories :: WarningCategorySet
    customWarningCategories = WarningCategorySet
    completeWarningCategorySet,
            fatalCustomWarningCategories :: WarningCategorySet
    fatalCustomWarningCategories = WarningCategorySet
    emptyWarningCategorySet,
            ghciScripts :: [String]
    ghciScripts = [],
            language :: Maybe Language
    language = Maybe Language
    forall a. Maybe a
    Nothing,
            safeHaskell :: SafeHaskellMode
    safeHaskell = SafeHaskellMode
    Sf_None,
            safeInfer :: Bool
    safeInfer   = Bool
    True,
            safeInferred :: Bool
    safeInferred = Bool
    True,
            thOnLoc :: SrcSpan
    thOnLoc = SrcSpan
    noSrcSpan,
            newDerivOnLoc :: SrcSpan
    newDerivOnLoc = SrcSpan
    noSrcSpan,
            deriveViaOnLoc :: SrcSpan
    deriveViaOnLoc = SrcSpan
    noSrcSpan,
            overlapInstLoc :: SrcSpan
    overlapInstLoc = SrcSpan
    noSrcSpan,
            incoherentOnLoc :: SrcSpan
    incoherentOnLoc = SrcSpan
    noSrcSpan,
            pkgTrustOnLoc :: SrcSpan
    pkgTrustOnLoc = SrcSpan
    noSrcSpan,
            warnSafeOnLoc :: SrcSpan
    warnSafeOnLoc = SrcSpan
    noSrcSpan,
            warnUnsafeOnLoc :: SrcSpan
    warnUnsafeOnLoc = SrcSpan
    noSrcSpan,
            trustworthyOnLoc :: SrcSpan
    trustworthyOnLoc = SrcSpan
    noSrcSpan,
            extensions :: [OnOff Extension]
    extensions = [],
            extensionFlags :: EnumSet Extension
    extensionFlags = Maybe Language -> [OnOff Extension] -> EnumSet Extension
    flattenExtensionFlags Maybe Language
    forall a. Maybe a
    Nothing [],

            unfoldingOpts :: UnfoldingOpts
    unfoldingOpts = UnfoldingOpts
    defaultUnfoldingOpts,
            maxWorkerArgs :: Int
    maxWorkerArgs = Int
    10,

            ghciHistSize :: Int
    ghciHistSize = Int
    50, -- keep a log of length 50 by default

            flushOut :: FlushOut
    flushOut = FlushOut
    defaultFlushOut,
            pprUserLength :: Int
    pprUserLength = Int
    5,
            pprCols :: Int
    pprCols = Int
    100,
            useUnicode :: Bool
    useUnicode = Bool
    False,
            useColor :: OverridingBool
    useColor = OverridingBool
    Auto,
            canUseColor :: Bool
    canUseColor = Bool
    False,
            useErrorLinks :: OverridingBool
    useErrorLinks = OverridingBool
    Auto,
            canUseErrorLinks :: Bool
    canUseErrorLinks = Bool
    False,
            colScheme :: Scheme
    colScheme = Scheme
    Col.defaultScheme,
            profAuto :: ProfAuto
    profAuto = ProfAuto
    NoProfAuto,
            callerCcFilters :: [CallerCcFilter]
    callerCcFilters = [],
            interactivePrint :: Maybe String
    interactivePrint = Maybe String
    forall a. Maybe a
    Nothing,
            sseVersion :: Maybe SseVersion
    sseVersion = Maybe SseVersion
    forall a. Maybe a
    Nothing,
            bmiVersion :: Maybe BmiVersion
    bmiVersion = Maybe BmiVersion
    forall a. Maybe a
    Nothing,
            avx :: Bool
    avx = Bool
    False,
            avx2 :: Bool
    avx2 = Bool
    False,
            avx512cd :: Bool
    avx512cd = Bool
    False,
            avx512er :: Bool
    avx512er = Bool
    False,
            avx512f :: Bool
    avx512f = Bool
    False,
            avx512pf :: Bool
    avx512pf = Bool
    False,
            -- Use FMA by default on AArch64
            fma :: Bool
    fma = (Platform -> Arch
    platformArch (Platform -> Arch) -> (Settings -> Platform) -> Settings -> Arch
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Settings -> Platform
    sTargetPlatform (Settings -> Arch) -> Settings -> Arch
    forall a b. (a -> b) -> a -> b
    $ Settings
    mySettings) Arch -> Arch -> Bool
    forall a. Eq a => a -> a -> Bool
    == Arch
    ArchAArch64,

            maxInlineAllocSize :: Int
    maxInlineAllocSize = Int
    128,
            maxInlineMemcpyInsns :: Int
    maxInlineMemcpyInsns = Int
    32,
            maxInlineMemsetInsns :: Int
    maxInlineMemsetInsns = Int
    32,

            initialUnique :: Word64
    initialUnique = Word64
    0,
            uniqueIncrement :: Int
    uniqueIncrement = Int
    1,

            reverseErrors :: Bool
    reverseErrors = Bool
    False,
            maxErrors :: Maybe Int
    maxErrors     = Maybe Int
    forall a. Maybe a
    Nothing,
            cfgWeights :: Weights
    cfgWeights    = Weights
    defaultWeights
          }

    type FatalMessager = String -> IO ()

    defaultFatalMessager :: FatalMessager
    defaultFatalMessager :: FatalMessager
    defaultFatalMessager = Handle -> FatalMessager
    hPutStrLn Handle
    stderr

    newtype FlushOut = FlushOut (IO ())

    defaultFlushOut :: FlushOut
    defaultFlushOut :: FlushOut
    defaultFlushOut = IO () -> FlushOut
    FlushOut (IO () -> FlushOut) -> IO () -> FlushOut
    forall a b. (a -> b) -> a -> b
    $ Handle -> IO ()
    hFlush Handle
    stdout

    data OnOff a = On a
                 | Off a
      deriving (OnOff a -> OnOff a -> Bool
    (OnOff a -> OnOff a -> Bool)
    -> (OnOff a -> OnOff a -> Bool) -> Eq (OnOff a)
    forall a. Eq a => OnOff a -> OnOff a -> Bool
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: forall a. Eq a => OnOff a -> OnOff a -> Bool
    == :: OnOff a -> OnOff a -> Bool
    $c/= :: forall a. Eq a => OnOff a -> OnOff a -> Bool
    /= :: OnOff a -> OnOff a -> Bool
    Eq, Int -> OnOff a -> String -> String
    [OnOff a] -> String -> String
    OnOff a -> String
    (Int -> OnOff a -> String -> String)
    -> (OnOff a -> String)
    -> ([OnOff a] -> String -> String)
    -> Show (OnOff a)
    forall a. Show a => Int -> OnOff a -> String -> String
    forall a. Show a => [OnOff a] -> String -> String
    forall a. Show a => OnOff a -> String
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: forall a. Show a => Int -> OnOff a -> String -> String
    showsPrec :: Int -> OnOff a -> String -> String
    $cshow :: forall a. Show a => OnOff a -> String
    show :: OnOff a -> String
    $cshowList :: forall a. Show a => [OnOff a] -> String -> String
    showList :: [OnOff a] -> String -> String
    Show)

    instance Outputable a => Outputable (OnOff a) where
      ppr :: OnOff a -> SDoc
    ppr (On a
    x)  = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "On" SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> a -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr a
    x
      ppr (Off a
    x) = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "Off" SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> a -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr a
    x

    -- OnOffs accumulate in reverse order, so we use foldr in order to
    -- process them in the right order
    flattenExtensionFlags :: Maybe Language -> [OnOff LangExt.Extension] -> EnumSet LangExt.Extension
    flattenExtensionFlags :: Maybe Language -> [OnOff Extension] -> EnumSet Extension
    flattenExtensionFlags Maybe Language
    ml = (OnOff Extension -> EnumSet Extension -> EnumSet Extension)
    -> EnumSet Extension -> [OnOff Extension] -> EnumSet Extension
    forall a b. (a -> b -> b) -> b -> [a] -> b
    forall (t :: * -> *) a b.
    Foldable t =>
    (a -> b -> b) -> b -> t a -> b
    foldr OnOff Extension -> EnumSet Extension -> EnumSet Extension
    forall {a}. Enum a => OnOff a -> EnumSet a -> EnumSet a
    g EnumSet Extension
    defaultExtensionFlags
        where g :: OnOff a -> EnumSet a -> EnumSet a
    g (On a
    f)  EnumSet a
    flags = a -> EnumSet a -> EnumSet a
    forall a. Enum a => a -> EnumSet a -> EnumSet a
    EnumSet.insert a
    f EnumSet a
    flags
              g (Off a
    f) EnumSet a
    flags = a -> EnumSet a -> EnumSet a
    forall a. Enum a => a -> EnumSet a -> EnumSet a
    EnumSet.delete a
    f EnumSet a
    flags
              defaultExtensionFlags :: EnumSet Extension
    defaultExtensionFlags = [Extension] -> EnumSet Extension
    forall a. Enum a => [a] -> EnumSet a
    EnumSet.fromList (Maybe Language -> [Extension]
    languageExtensions Maybe Language
    ml)

    -- -----------------------------------------------------------------------------
    -- -jN

    -- | The type for the -jN argument, specifying that -j on its own represents
    -- using the number of machine processors.
    data ParMakeCount
      -- | Use this many processors (@-j<n>@ flag).
      = ParMakeThisMany Int
      -- | Use parallelism with as many processors as possible (@-j@ flag without an argument).
      | ParMakeNumProcessors
      -- | Use the specific semaphore @<sem>@ to control parallelism (@-jsem <sem>@ flag).
      | ParMakeSemaphore FilePath

    -- -----------------------------------------------------------------------------
    -- Linker/compiler information

    -- LinkerInfo contains any extra options needed by the system linker.
    data LinkerInfo
      = GnuLD    [Option]
      | Mold     [Option]
      | GnuGold  [Option]
      | LlvmLLD  [Option]
      | DarwinLD [Option]
      | SolarisLD [Option]
      | AixLD    [Option]
      | UnknownLD
      deriving LinkerInfo -> LinkerInfo -> Bool
    (LinkerInfo -> LinkerInfo -> Bool)
    -> (LinkerInfo -> LinkerInfo -> Bool) -> Eq LinkerInfo
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: LinkerInfo -> LinkerInfo -> Bool
    == :: LinkerInfo -> LinkerInfo -> Bool
    $c/= :: LinkerInfo -> LinkerInfo -> Bool
    /= :: LinkerInfo -> LinkerInfo -> Bool
    Eq

    -- CompilerInfo tells us which C compiler we're using
    data CompilerInfo
       = GCC
       | Clang
       | AppleClang
       | AppleClang51
       | Emscripten
       | UnknownCC
       deriving CompilerInfo -> CompilerInfo -> Bool
    (CompilerInfo -> CompilerInfo -> Bool)
    -> (CompilerInfo -> CompilerInfo -> Bool) -> Eq CompilerInfo
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: CompilerInfo -> CompilerInfo -> Bool
    == :: CompilerInfo -> CompilerInfo -> Bool
    $c/= :: CompilerInfo -> CompilerInfo -> Bool
    /= :: CompilerInfo -> CompilerInfo -> Bool
    Eq

    -- | The 'GhcMode' tells us whether we're doing multi-module
    -- compilation (controlled via the "GHC" API) or one-shot
    -- (single-module) compilation.  This makes a difference primarily to
    -- the "GHC.Unit.Finder": in one-shot mode we look for interface files for
    -- imported modules, but in multi-module mode we look for source files
    -- in order to check whether they need to be recompiled.
    data GhcMode
      = CompManager         -- ^ @\-\-make@, GHCi, etc.
      | OneShot             -- ^ @ghc -c Foo.hs@
      | MkDepend            -- ^ @ghc -M@, see "GHC.Unit.Finder" for why we need this
      deriving GhcMode -> GhcMode -> Bool
    (GhcMode -> GhcMode -> Bool)
    -> (GhcMode -> GhcMode -> Bool) -> Eq GhcMode
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: GhcMode -> GhcMode -> Bool
    == :: GhcMode -> GhcMode -> Bool
    $c/= :: GhcMode -> GhcMode -> Bool
    /= :: GhcMode -> GhcMode -> Bool
    Eq

    instance Outputable GhcMode where
      ppr :: GhcMode -> SDoc
    ppr GhcMode
    CompManager = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "CompManager"
      ppr GhcMode
    OneShot     = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "OneShot"
      ppr GhcMode
    MkDepend    = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "MkDepend"

    isOneShot :: GhcMode -> Bool
    isOneShot :: GhcMode -> Bool
    isOneShot GhcMode
    OneShot = Bool
    True
    isOneShot GhcMode
    _other  = Bool
    False

    -- | What to do in the link step, if there is one.
    data GhcLink
      = NoLink              -- ^ Don't link at all
      | LinkBinary          -- ^ Link object code into a binary
      | LinkInMemory        -- ^ Use the in-memory dynamic linker (works for both
                            --   bytecode and object code).
      | LinkDynLib          -- ^ Link objects into a dynamic lib (DLL on Windows, DSO on ELF platforms)
      | LinkStaticLib       -- ^ Link objects into a static lib
      | LinkMergedObj       -- ^ Link objects into a merged "GHCi object"
      deriving (GhcLink -> GhcLink -> Bool
    (GhcLink -> GhcLink -> Bool)
    -> (GhcLink -> GhcLink -> Bool) -> Eq GhcLink
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: GhcLink -> GhcLink -> Bool
    == :: GhcLink -> GhcLink -> Bool
    $c/= :: GhcLink -> GhcLink -> Bool
    /= :: GhcLink -> GhcLink -> Bool
    Eq, Int -> GhcLink -> String -> String
    [GhcLink] -> String -> String
    GhcLink -> String
    (Int -> GhcLink -> String -> String)
    -> (GhcLink -> String)
    -> ([GhcLink] -> String -> String)
    -> Show GhcLink
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: Int -> GhcLink -> String -> String
    showsPrec :: Int -> GhcLink -> String -> String
    $cshow :: GhcLink -> String
    show :: GhcLink -> String
    $cshowList :: [GhcLink] -> String -> String
    showList :: [GhcLink] -> String -> String
    Show)

    isNoLink :: GhcLink -> Bool
    isNoLink :: GhcLink -> Bool
    isNoLink GhcLink
    NoLink = Bool
    True
    isNoLink GhcLink
    _      = Bool
    False

    -- | We accept flags which make packages visible, but how they select
    -- the package varies; this data type reflects what selection criterion
    -- is used.
    data PackageArg =
          PackageArg String    -- ^ @-package@, by 'PackageName'
        | UnitIdArg Unit       -- ^ @-package-id@, by 'Unit'
      deriving (PackageArg -> PackageArg -> Bool
    (PackageArg -> PackageArg -> Bool)
    -> (PackageArg -> PackageArg -> Bool) -> Eq PackageArg
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: PackageArg -> PackageArg -> Bool
    == :: PackageArg -> PackageArg -> Bool
    $c/= :: PackageArg -> PackageArg -> Bool
    /= :: PackageArg -> PackageArg -> Bool
    Eq, Int -> PackageArg -> String -> String
    [PackageArg] -> String -> String
    PackageArg -> String
    (Int -> PackageArg -> String -> String)
    -> (PackageArg -> String)
    -> ([PackageArg] -> String -> String)
    -> Show PackageArg
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: Int -> PackageArg -> String -> String
    showsPrec :: Int -> PackageArg -> String -> String
    $cshow :: PackageArg -> String
    show :: PackageArg -> String
    $cshowList :: [PackageArg] -> String -> String
    showList :: [PackageArg] -> String -> String
    Show)

    instance Outputable PackageArg where
        ppr :: PackageArg -> SDoc
    ppr (PackageArg String
    pn) = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "package" SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    pn
        ppr (UnitIdArg Unit
    uid) = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "unit" SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> Unit -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr Unit
    uid

    -- | Represents the renaming that may be associated with an exposed
    -- package, e.g. the @rns@ part of @-package "foo (rns)"@.
    --
    -- Here are some example parsings of the package flags (where
    -- a string literal is punned to be a 'ModuleName':
    --
    --      * @-package foo@ is @ModRenaming True []@
    --      * @-package foo ()@ is @ModRenaming False []@
    --      * @-package foo (A)@ is @ModRenaming False [("A", "A")]@
    --      * @-package foo (A as B)@ is @ModRenaming False [("A", "B")]@
    --      * @-package foo with (A as B)@ is @ModRenaming True [("A", "B")]@
    data ModRenaming = ModRenaming {
        ModRenaming -> Bool
    modRenamingWithImplicit :: Bool, -- ^ Bring all exposed modules into scope?
        ModRenaming -> [(ModuleName, ModuleName)]
    modRenamings :: [(ModuleName, ModuleName)] -- ^ Bring module @m@ into scope
                                                   --   under name @n@.
      } deriving (ModRenaming -> ModRenaming -> Bool
    (ModRenaming -> ModRenaming -> Bool)
    -> (ModRenaming -> ModRenaming -> Bool) -> Eq ModRenaming
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: ModRenaming -> ModRenaming -> Bool
    == :: ModRenaming -> ModRenaming -> Bool
    $c/= :: ModRenaming -> ModRenaming -> Bool
    /= :: ModRenaming -> ModRenaming -> Bool
    Eq)
    instance Outputable ModRenaming where
        ppr :: ModRenaming -> SDoc
    ppr (ModRenaming Bool
    b [(ModuleName, ModuleName)]
    rns) = Bool -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr Bool
    b SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc
    parens ([(ModuleName, ModuleName)] -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr [(ModuleName, ModuleName)]
    rns)

    -- | Flags for manipulating the set of non-broken packages.
    newtype IgnorePackageFlag = IgnorePackage String -- ^ @-ignore-package@
      deriving (IgnorePackageFlag -> IgnorePackageFlag -> Bool
    (IgnorePackageFlag -> IgnorePackageFlag -> Bool)
    -> (IgnorePackageFlag -> IgnorePackageFlag -> Bool)
    -> Eq IgnorePackageFlag
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: IgnorePackageFlag -> IgnorePackageFlag -> Bool
    == :: IgnorePackageFlag -> IgnorePackageFlag -> Bool
    $c/= :: IgnorePackageFlag -> IgnorePackageFlag -> Bool
    /= :: IgnorePackageFlag -> IgnorePackageFlag -> Bool
    Eq)

    -- | Flags for manipulating package trust.
    data TrustFlag
      = TrustPackage    String -- ^ @-trust@
      | DistrustPackage String -- ^ @-distrust@
      deriving (TrustFlag -> TrustFlag -> Bool
    (TrustFlag -> TrustFlag -> Bool)
    -> (TrustFlag -> TrustFlag -> Bool) -> Eq TrustFlag
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: TrustFlag -> TrustFlag -> Bool
    == :: TrustFlag -> TrustFlag -> Bool
    $c/= :: TrustFlag -> TrustFlag -> Bool
    /= :: TrustFlag -> TrustFlag -> Bool
    Eq)

    -- | Flags for manipulating packages visibility.
    data PackageFlag
      = ExposePackage   String PackageArg ModRenaming -- ^ @-package@, @-package-id@
      | HidePackage     String -- ^ @-hide-package@
      deriving (PackageFlag -> PackageFlag -> Bool
    (PackageFlag -> PackageFlag -> Bool)
    -> (PackageFlag -> PackageFlag -> Bool) -> Eq PackageFlag
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: PackageFlag -> PackageFlag -> Bool
    == :: PackageFlag -> PackageFlag -> Bool
    $c/= :: PackageFlag -> PackageFlag -> Bool
    /= :: PackageFlag -> PackageFlag -> Bool
    Eq) -- NB: equality instance is used by packageFlagsChanged

    data PackageDBFlag
      = PackageDB PkgDbRef
      | NoUserPackageDB
      | NoGlobalPackageDB
      | ClearPackageDBs
      deriving (PackageDBFlag -> PackageDBFlag -> Bool
    (PackageDBFlag -> PackageDBFlag -> Bool)
    -> (PackageDBFlag -> PackageDBFlag -> Bool) -> Eq PackageDBFlag
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: PackageDBFlag -> PackageDBFlag -> Bool
    == :: PackageDBFlag -> PackageDBFlag -> Bool
    $c/= :: PackageDBFlag -> PackageDBFlag -> Bool
    /= :: PackageDBFlag -> PackageDBFlag -> Bool
    Eq)

    packageFlagsChanged :: DynFlags -> DynFlags -> Bool
    packageFlagsChanged :: DynFlags -> DynFlags -> Bool
    packageFlagsChanged DynFlags
    idflags1 DynFlags
    idflags0 =
      DynFlags -> [PackageFlag]
    packageFlags DynFlags
    idflags1 [PackageFlag] -> [PackageFlag] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [PackageFlag]
    packageFlags DynFlags
    idflags0 Bool -> Bool -> Bool
    ||
      DynFlags -> [IgnorePackageFlag]
    ignorePackageFlags DynFlags
    idflags1 [IgnorePackageFlag] -> [IgnorePackageFlag] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [IgnorePackageFlag]
    ignorePackageFlags DynFlags
    idflags0 Bool -> Bool -> Bool
    ||
      DynFlags -> [PackageFlag]
    pluginPackageFlags DynFlags
    idflags1 [PackageFlag] -> [PackageFlag] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [PackageFlag]
    pluginPackageFlags DynFlags
    idflags0 Bool -> Bool -> Bool
    ||
      DynFlags -> [TrustFlag]
    trustFlags DynFlags
    idflags1 [TrustFlag] -> [TrustFlag] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [TrustFlag]
    trustFlags DynFlags
    idflags0 Bool -> Bool -> Bool
    ||
      DynFlags -> [PackageDBFlag]
    packageDBFlags DynFlags
    idflags1 [PackageDBFlag] -> [PackageDBFlag] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [PackageDBFlag]
    packageDBFlags DynFlags
    idflags0 Bool -> Bool -> Bool
    ||
      DynFlags -> [Bool]
    packageGFlags DynFlags
    idflags1 [Bool] -> [Bool] -> Bool
    forall a. Eq a => a -> a -> Bool
    /= DynFlags -> [Bool]
    packageGFlags DynFlags
    idflags0
     where
       packageGFlags :: DynFlags -> [Bool]
    packageGFlags DynFlags
    dflags = (GeneralFlag -> Bool) -> [GeneralFlag] -> [Bool]
    forall a b. (a -> b) -> [a] -> [b]
    map (GeneralFlag -> DynFlags -> Bool
    `gopt` DynFlags
    dflags)
         [ GeneralFlag
    Opt_HideAllPackages
         , GeneralFlag
    Opt_HideAllPluginPackages
         , GeneralFlag
    Opt_AutoLinkPackages ]

    instance Outputable PackageFlag where
        ppr :: PackageFlag -> SDoc
    ppr (ExposePackage String
    n PackageArg
    arg ModRenaming
    rn) = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    n SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc
    braces (PackageArg -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr PackageArg
    arg SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> ModRenaming -> SDoc
    forall a. Outputable a => a -> SDoc
    ppr ModRenaming
    rn)
        ppr (HidePackage String
    str) = String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    "-hide-package" SDoc -> SDoc -> SDoc
    forall doc. IsLine doc => doc -> doc -> doc
    <+> String -> SDoc
    forall doc. IsLine doc => String -> doc
    text String
    str

    data DynLibLoader
      = Deployable
      | SystemDependent
      deriving DynLibLoader -> DynLibLoader -> Bool
    (DynLibLoader -> DynLibLoader -> Bool)
    -> (DynLibLoader -> DynLibLoader -> Bool) -> Eq DynLibLoader
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: DynLibLoader -> DynLibLoader -> Bool
    == :: DynLibLoader -> DynLibLoader -> Bool
    $c/= :: DynLibLoader -> DynLibLoader -> Bool
    /= :: DynLibLoader -> DynLibLoader -> Bool
    Eq

    data RtsOptsEnabled
      = RtsOptsNone | RtsOptsIgnore | RtsOptsIgnoreAll | RtsOptsSafeOnly
      | RtsOptsAll
      deriving (Int -> RtsOptsEnabled -> String -> String
    [RtsOptsEnabled] -> String -> String
    RtsOptsEnabled -> String
    (Int -> RtsOptsEnabled -> String -> String)
    -> (RtsOptsEnabled -> String)
    -> ([RtsOptsEnabled] -> String -> String)
    -> Show RtsOptsEnabled
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: Int -> RtsOptsEnabled -> String -> String
    showsPrec :: Int -> RtsOptsEnabled -> String -> String
    $cshow :: RtsOptsEnabled -> String
    show :: RtsOptsEnabled -> String
    $cshowList :: [RtsOptsEnabled] -> String -> String
    showList :: [RtsOptsEnabled] -> String -> String
    Show)

    -- | Are we building with @-fPIE@ or @-fPIC@ enabled?
    positionIndependent :: DynFlags -> Bool
    positionIndependent :: DynFlags -> Bool
    positionIndependent DynFlags
    dflags = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PIC DynFlags
    dflags Bool -> Bool -> Bool
    || GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PIE DynFlags
    dflags

    -- Note [-dynamic-too business]
    -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    --
    -- With -dynamic-too flag, we try to build both the non-dynamic and dynamic
    -- objects in a single run of the compiler: the pipeline is the same down to
    -- Core optimisation, then the backend (from Core to object code) is executed
    -- twice.
    --
    -- The implementation is currently rather hacky, for example, we don't clearly separate non-dynamic
    -- and dynamic loaded interfaces (#9176).
    --
    -- To make matters worse, we automatically enable -dynamic-too when some modules
    -- need Template-Haskell and GHC is dynamically linked (cf
    -- GHC.Driver.Pipeline.compileOne').
    --
    -- We used to try and fall back from a dynamic-too failure but this feature
    -- didn't work as expected (#20446) so it was removed to simplify the
    -- implementation and not obscure latent bugs.

    data DynamicTooState
       = DT_Dont    -- ^ Don't try to build dynamic objects too
       | DT_OK      -- ^ Will still try to generate dynamic objects
       | DT_Dyn     -- ^ Currently generating dynamic objects (in the backend)
       deriving (DynamicTooState -> DynamicTooState -> Bool
    (DynamicTooState -> DynamicTooState -> Bool)
    -> (DynamicTooState -> DynamicTooState -> Bool)
    -> Eq DynamicTooState
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: DynamicTooState -> DynamicTooState -> Bool
    == :: DynamicTooState -> DynamicTooState -> Bool
    $c/= :: DynamicTooState -> DynamicTooState -> Bool
    /= :: DynamicTooState -> DynamicTooState -> Bool
    Eq,Int -> DynamicTooState -> String -> String
    [DynamicTooState] -> String -> String
    DynamicTooState -> String
    (Int -> DynamicTooState -> String -> String)
    -> (DynamicTooState -> String)
    -> ([DynamicTooState] -> String -> String)
    -> Show DynamicTooState
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: Int -> DynamicTooState -> String -> String
    showsPrec :: Int -> DynamicTooState -> String -> String
    $cshow :: DynamicTooState -> String
    show :: DynamicTooState -> String
    $cshowList :: [DynamicTooState] -> String -> String
    showList :: [DynamicTooState] -> String -> String
    Show,Eq DynamicTooState
    Eq DynamicTooState =>
    (DynamicTooState -> DynamicTooState -> Ordering)
    -> (DynamicTooState -> DynamicTooState -> Bool)
    -> (DynamicTooState -> DynamicTooState -> Bool)
    -> (DynamicTooState -> DynamicTooState -> Bool)
    -> (DynamicTooState -> DynamicTooState -> Bool)
    -> (DynamicTooState -> DynamicTooState -> DynamicTooState)
    -> (DynamicTooState -> DynamicTooState -> DynamicTooState)
    -> Ord DynamicTooState
    DynamicTooState -> DynamicTooState -> Bool
    DynamicTooState -> DynamicTooState -> Ordering
    DynamicTooState -> DynamicTooState -> DynamicTooState
    forall a.
    Eq a =>
    (a -> a -> Ordering)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> a)
    -> (a -> a -> a)
    -> Ord a
    $ccompare :: DynamicTooState -> DynamicTooState -> Ordering
    compare :: DynamicTooState -> DynamicTooState -> Ordering
    $c< :: DynamicTooState -> DynamicTooState -> Bool
    < :: DynamicTooState -> DynamicTooState -> Bool
    $c<= :: DynamicTooState -> DynamicTooState -> Bool
    <= :: DynamicTooState -> DynamicTooState -> Bool
    $c> :: DynamicTooState -> DynamicTooState -> Bool
    > :: DynamicTooState -> DynamicTooState -> Bool
    $c>= :: DynamicTooState -> DynamicTooState -> Bool
    >= :: DynamicTooState -> DynamicTooState -> Bool
    $cmax :: DynamicTooState -> DynamicTooState -> DynamicTooState
    max :: DynamicTooState -> DynamicTooState -> DynamicTooState
    $cmin :: DynamicTooState -> DynamicTooState -> DynamicTooState
    min :: DynamicTooState -> DynamicTooState -> DynamicTooState
    Ord)

    dynamicTooState :: DynFlags -> DynamicTooState
    dynamicTooState :: DynFlags -> DynamicTooState
    dynamicTooState DynFlags
    dflags
       | Bool -> Bool
    not (GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_BuildDynamicToo DynFlags
    dflags) = DynamicTooState
    DT_Dont
       | DynFlags -> Bool
    dynamicNow DynFlags
    dflags = DynamicTooState
    DT_Dyn
       | Bool
    otherwise = DynamicTooState
    DT_OK

    setDynamicNow :: DynFlags -> DynFlags
    setDynamicNow :: DynFlags -> DynFlags
    setDynamicNow DynFlags
    dflags0 =
       DynFlags
    dflags0
          { dynamicNow = True
          }

    data PkgDbRef
      = GlobalPkgDb
      | UserPkgDb
      | PkgDbPath FilePath
      deriving PkgDbRef -> PkgDbRef -> Bool
    (PkgDbRef -> PkgDbRef -> Bool)
    -> (PkgDbRef -> PkgDbRef -> Bool) -> Eq PkgDbRef
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: PkgDbRef -> PkgDbRef -> Bool
    == :: PkgDbRef -> PkgDbRef -> Bool
    $c/= :: PkgDbRef -> PkgDbRef -> Bool
    /= :: PkgDbRef -> PkgDbRef -> Bool
    Eq

    -- | Used to differentiate the scope an include needs to apply to.
    -- We have to split the include paths to avoid accidentally forcing recursive
    -- includes since -I overrides the system search paths. See #14312.
    data IncludeSpecs
      = IncludeSpecs { IncludeSpecs -> [String]
    includePathsQuote  :: [String]
                     , IncludeSpecs -> [String]
    includePathsGlobal :: [String]
                     -- | See Note [Implicit include paths]
                     , IncludeSpecs -> [String]
    includePathsQuoteImplicit :: [String]
                     }
      deriving Int -> IncludeSpecs -> String -> String
    [IncludeSpecs] -> String -> String
    IncludeSpecs -> String
    (Int -> IncludeSpecs -> String -> String)
    -> (IncludeSpecs -> String)
    -> ([IncludeSpecs] -> String -> String)
    -> Show IncludeSpecs
    forall a.
    (Int -> a -> String -> String)
    -> (a -> String) -> ([a] -> String -> String) -> Show a
    $cshowsPrec :: Int -> IncludeSpecs -> String -> String
    showsPrec :: Int -> IncludeSpecs -> String -> String
    $cshow :: IncludeSpecs -> String
    show :: IncludeSpecs -> String
    $cshowList :: [IncludeSpecs] -> String -> String
    showList :: [IncludeSpecs] -> String -> String
    Show

    -- | Append to the list of includes a path that shall be included using `-I`
    -- when the C compiler is called. These paths override system search paths.
    addGlobalInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addGlobalInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addGlobalInclude IncludeSpecs
    spec [String]
    paths  = let f :: [String]
    f = IncludeSpecs -> [String]
    includePathsGlobal IncludeSpecs
    spec
                                   in IncludeSpecs
    spec { includePathsGlobal = f ++ paths }

    -- | Append to the list of includes a path that shall be included using
    -- `-iquote` when the C compiler is called. These paths only apply when quoted
    -- includes are used. e.g. #include "foo.h"
    addQuoteInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addQuoteInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addQuoteInclude IncludeSpecs
    spec [String]
    paths  = let f :: [String]
    f = IncludeSpecs -> [String]
    includePathsQuote IncludeSpecs
    spec
                                  in IncludeSpecs
    spec { includePathsQuote = f ++ paths }

    -- | These includes are not considered while fingerprinting the flags for iface
    -- | See Note [Implicit include paths]
    addImplicitQuoteInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addImplicitQuoteInclude :: IncludeSpecs -> [String] -> IncludeSpecs
    addImplicitQuoteInclude IncludeSpecs
    spec [String]
    paths  = let f :: [String]
    f = IncludeSpecs -> [String]
    includePathsQuoteImplicit IncludeSpecs
    spec
                                  in IncludeSpecs
    spec { includePathsQuoteImplicit = f ++ paths }

    -- | Concatenate and flatten the list of global and quoted includes returning
    -- just a flat list of paths.
    flattenIncludes :: IncludeSpecs -> [String]
    flattenIncludes :: IncludeSpecs -> [String]
    flattenIncludes IncludeSpecs
    specs =
        IncludeSpecs -> [String]
    includePathsQuote IncludeSpecs
    specs [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++
        IncludeSpecs -> [String]
    includePathsQuoteImplicit IncludeSpecs
    specs [String] -> [String] -> [String]
    forall a. [a] -> [a] -> [a]
    ++
        IncludeSpecs -> [String]
    includePathsGlobal IncludeSpecs
    specs

    {- Note [Implicit include paths]
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      The compile driver adds the path to the folder containing the source file being
      compiled to the 'IncludeSpecs', and this change gets recorded in the 'DynFlags'
      that are used later to compute the interface file. Because of this,
      the flags fingerprint derived from these 'DynFlags' and recorded in the
      interface file will end up containing the absolute path to the source folder.

      Build systems with a remote cache like Bazel or Buck (or Shake, see #16956)
      store the build artifacts produced by a build BA for reuse in subsequent builds.

      Embedding source paths in interface fingerprints will thwart these attempts and
      lead to unnecessary recompilations when the source paths in BA differ from the
      source paths in subsequent builds.
     -}

    hasPprDebug :: DynFlags -> Bool
    hasPprDebug :: DynFlags -> Bool
    hasPprDebug = DumpFlag -> DynFlags -> Bool
    dopt DumpFlag
    Opt_D_ppr_debug

    hasNoDebugOutput :: DynFlags -> Bool
    hasNoDebugOutput :: DynFlags -> Bool
    hasNoDebugOutput = DumpFlag -> DynFlags -> Bool
    dopt DumpFlag
    Opt_D_no_debug_output

    hasNoStateHack :: DynFlags -> Bool
    hasNoStateHack :: DynFlags -> Bool
    hasNoStateHack = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_G_NoStateHack

    hasNoOptCoercion :: DynFlags -> Bool
    hasNoOptCoercion :: DynFlags -> Bool
    hasNoOptCoercion = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_G_NoOptCoercion

    -- | Test whether a 'DumpFlag' is set
    dopt :: DumpFlag -> DynFlags -> Bool
    dopt :: DumpFlag -> DynFlags -> Bool
    dopt = (DynFlags -> Int)
    -> (DynFlags -> EnumSet DumpFlag) -> DumpFlag -> DynFlags -> Bool
    forall a.
    (a -> Int) -> (a -> EnumSet DumpFlag) -> DumpFlag -> a -> Bool
    getDumpFlagFrom DynFlags -> Int
    verbosity DynFlags -> EnumSet DumpFlag
    dumpFlags

    -- | Set a 'DumpFlag'
    dopt_set :: DynFlags -> DumpFlag -> DynFlags
    dopt_set :: DynFlags -> DumpFlag -> DynFlags
    dopt_set DynFlags
    dfs DumpFlag
    f = DynFlags
    dfs{ dumpFlags = EnumSet.insert f (dumpFlags dfs) }

    -- | Unset a 'DumpFlag'
    dopt_unset :: DynFlags -> DumpFlag -> DynFlags
    dopt_unset :: DynFlags -> DumpFlag -> DynFlags
    dopt_unset DynFlags
    dfs DumpFlag
    f = DynFlags
    dfs{ dumpFlags = EnumSet.delete f (dumpFlags dfs) }

    -- | Test whether a 'GeneralFlag' is set
    --
    -- Note that `dynamicNow` (i.e., dynamic objects built with `-dynamic-too`)
    -- always implicitly enables Opt_PIC, Opt_ExternalDynamicRefs, and disables
    -- Opt_SplitSections.
    --
    gopt :: GeneralFlag -> DynFlags -> Bool
    gopt :: GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PIC DynFlags
    dflags
       | DynFlags -> Bool
    dynamicNow DynFlags
    dflags = Bool
    True
    gopt GeneralFlag
    Opt_ExternalDynamicRefs DynFlags
    dflags
       | DynFlags -> Bool
    dynamicNow DynFlags
    dflags = Bool
    True
    gopt GeneralFlag
    Opt_SplitSections DynFlags
    dflags
       | DynFlags -> Bool
    dynamicNow DynFlags
    dflags = Bool
    False
    gopt GeneralFlag
    f DynFlags
    dflags = GeneralFlag
    f GeneralFlag -> EnumSet GeneralFlag -> Bool
    forall a. Enum a => a -> EnumSet a -> Bool
    `EnumSet.member` DynFlags -> EnumSet GeneralFlag
    generalFlags DynFlags
    dflags

    -- | Set a 'GeneralFlag'
    gopt_set :: DynFlags -> GeneralFlag -> DynFlags
    gopt_set :: DynFlags -> GeneralFlag -> DynFlags
    gopt_set DynFlags
    dfs GeneralFlag
    f = DynFlags
    dfs{ generalFlags = EnumSet.insert f (generalFlags dfs) }

    -- | Unset a 'GeneralFlag'
    gopt_unset :: DynFlags -> GeneralFlag -> DynFlags
    gopt_unset :: DynFlags -> GeneralFlag -> DynFlags
    gopt_unset DynFlags
    dfs GeneralFlag
    f = DynFlags
    dfs{ generalFlags = EnumSet.delete f (generalFlags dfs) }

    -- | Test whether a 'WarningFlag' is set
    wopt :: WarningFlag -> DynFlags -> Bool
    wopt :: WarningFlag -> DynFlags -> Bool
    wopt WarningFlag
    f DynFlags
    dflags  = WarningFlag
    f WarningFlag -> EnumSet WarningFlag -> Bool
    forall a. Enum a => a -> EnumSet a -> Bool
    `EnumSet.member` DynFlags -> EnumSet WarningFlag
    warningFlags DynFlags
    dflags

    -- | Set a 'WarningFlag'
    wopt_set :: DynFlags -> WarningFlag -> DynFlags
    wopt_set :: DynFlags -> WarningFlag -> DynFlags
    wopt_set DynFlags
    dfs WarningFlag
    f = DynFlags
    dfs{ warningFlags = EnumSet.insert f (warningFlags dfs) }

    -- | Unset a 'WarningFlag'
    wopt_unset :: DynFlags -> WarningFlag -> DynFlags
    wopt_unset :: DynFlags -> WarningFlag -> DynFlags
    wopt_unset DynFlags
    dfs WarningFlag
    f = DynFlags
    dfs{ warningFlags = EnumSet.delete f (warningFlags dfs) }

    -- | Test whether a 'WarningFlag' is set as fatal
    wopt_fatal :: WarningFlag -> DynFlags -> Bool
    wopt_fatal :: WarningFlag -> DynFlags -> Bool
    wopt_fatal WarningFlag
    f DynFlags
    dflags = WarningFlag
    f WarningFlag -> EnumSet WarningFlag -> Bool
    forall a. Enum a => a -> EnumSet a -> Bool
    `EnumSet.member` DynFlags -> EnumSet WarningFlag
    fatalWarningFlags DynFlags
    dflags

    -- | Mark a 'WarningFlag' as fatal (do not set the flag)
    wopt_set_fatal :: DynFlags -> WarningFlag -> DynFlags
    wopt_set_fatal :: DynFlags -> WarningFlag -> DynFlags
    wopt_set_fatal DynFlags
    dfs WarningFlag
    f
        = DynFlags
    dfs { fatalWarningFlags = EnumSet.insert f (fatalWarningFlags dfs) }

    -- | Mark a 'WarningFlag' as not fatal
    wopt_unset_fatal :: DynFlags -> WarningFlag -> DynFlags
    wopt_unset_fatal :: DynFlags -> WarningFlag -> DynFlags
    wopt_unset_fatal DynFlags
    dfs WarningFlag
    f
        = DynFlags
    dfs { fatalWarningFlags = EnumSet.delete f (fatalWarningFlags dfs) }

    -- | Enable all custom warning categories.
    wopt_set_all_custom :: DynFlags -> DynFlags
    wopt_set_all_custom :: DynFlags -> DynFlags
    wopt_set_all_custom DynFlags
    dfs
        = DynFlags
    dfs{ customWarningCategories = completeWarningCategorySet }

    -- | Disable all custom warning categories.
    wopt_unset_all_custom :: DynFlags -> DynFlags
    wopt_unset_all_custom :: DynFlags -> DynFlags
    wopt_unset_all_custom DynFlags
    dfs
        = DynFlags
    dfs{ customWarningCategories = emptyWarningCategorySet }

    -- | Mark all custom warning categories as fatal (do not set the flags).
    wopt_set_all_fatal_custom :: DynFlags -> DynFlags
    wopt_set_all_fatal_custom :: DynFlags -> DynFlags
    wopt_set_all_fatal_custom DynFlags
    dfs
        = DynFlags
    dfs { fatalCustomWarningCategories = completeWarningCategorySet }

    -- | Mark all custom warning categories as non-fatal.
    wopt_unset_all_fatal_custom :: DynFlags -> DynFlags
    wopt_unset_all_fatal_custom :: DynFlags -> DynFlags
    wopt_unset_all_fatal_custom DynFlags
    dfs
        = DynFlags
    dfs { fatalCustomWarningCategories = emptyWarningCategorySet }

    -- | Set a custom 'WarningCategory'
    wopt_set_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_set_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_set_custom DynFlags
    dfs WarningCategory
    f = DynFlags
    dfs{ customWarningCategories = insertWarningCategorySet f (customWarningCategories dfs) }

    -- | Unset a custom 'WarningCategory'
    wopt_unset_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_unset_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_unset_custom DynFlags
    dfs WarningCategory
    f = DynFlags
    dfs{ customWarningCategories = deleteWarningCategorySet f (customWarningCategories dfs) }

    -- | Mark a custom 'WarningCategory' as fatal (do not set the flag)
    wopt_set_fatal_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_set_fatal_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_set_fatal_custom DynFlags
    dfs WarningCategory
    f
        = DynFlags
    dfs { fatalCustomWarningCategories = insertWarningCategorySet f (fatalCustomWarningCategories dfs) }

    -- | Mark a custom 'WarningCategory' as not fatal
    wopt_unset_fatal_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_unset_fatal_custom :: DynFlags -> WarningCategory -> DynFlags
    wopt_unset_fatal_custom DynFlags
    dfs WarningCategory
    f
        = DynFlags
    dfs { fatalCustomWarningCategories = deleteWarningCategorySet f (fatalCustomWarningCategories dfs) }

    -- | Are there any custom warning categories enabled?
    wopt_any_custom :: DynFlags -> Bool
    wopt_any_custom :: DynFlags -> Bool
    wopt_any_custom DynFlags
    dfs = Bool -> Bool
    not (WarningCategorySet -> Bool
    nullWarningCategorySet (DynFlags -> WarningCategorySet
    customWarningCategories DynFlags
    dfs))

    -- | Test whether a 'LangExt.Extension' is set
    xopt :: LangExt.Extension -> DynFlags -> Bool
    xopt :: Extension -> DynFlags -> Bool
    xopt Extension
    f DynFlags
    dflags = Extension
    f Extension -> EnumSet Extension -> Bool
    forall a. Enum a => a -> EnumSet a -> Bool
    `EnumSet.member` DynFlags -> EnumSet Extension
    extensionFlags DynFlags
    dflags

    -- | Set a 'LangExt.Extension'
    xopt_set :: DynFlags -> LangExt.Extension -> DynFlags
    xopt_set :: DynFlags -> Extension -> DynFlags
    xopt_set DynFlags
    dfs Extension
    f
        = let onoffs :: [OnOff Extension]
    onoffs = Extension -> OnOff Extension
    forall a. a -> OnOff a
    On Extension
    f OnOff Extension -> [OnOff Extension] -> [OnOff Extension]
    forall a. a -> [a] -> [a]
    : DynFlags -> [OnOff Extension]
    extensions DynFlags
    dfs
          in DynFlags
    dfs { extensions = onoffs,
                   extensionFlags = flattenExtensionFlags (language dfs) onoffs }

    -- | Unset a 'LangExt.Extension'
    xopt_unset :: DynFlags -> LangExt.Extension -> DynFlags
    xopt_unset :: DynFlags -> Extension -> DynFlags
    xopt_unset DynFlags
    dfs Extension
    f
        = let onoffs :: [OnOff Extension]
    onoffs = Extension -> OnOff Extension
    forall a. a -> OnOff a
    Off Extension
    f OnOff Extension -> [OnOff Extension] -> [OnOff Extension]
    forall a. a -> [a] -> [a]
    : DynFlags -> [OnOff Extension]
    extensions DynFlags
    dfs
          in DynFlags
    dfs { extensions = onoffs,
                   extensionFlags = flattenExtensionFlags (language dfs) onoffs }

    -- | Set or unset a 'LangExt.Extension', unless it has been explicitly
    --   set or unset before.
    xopt_set_unlessExplSpec
            :: LangExt.Extension
            -> (DynFlags -> LangExt.Extension -> DynFlags)
            -> DynFlags -> DynFlags
    xopt_set_unlessExplSpec :: Extension
    -> (DynFlags -> Extension -> DynFlags) -> DynFlags -> DynFlags
    xopt_set_unlessExplSpec Extension
    ext DynFlags -> Extension -> DynFlags
    setUnset DynFlags
    dflags =
        let referedExts :: [Extension]
    referedExts = OnOff Extension -> Extension
    forall {a}. OnOff a -> a
    stripOnOff (OnOff Extension -> Extension) -> [OnOff Extension] -> [Extension]
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> DynFlags -> [OnOff Extension]
    extensions DynFlags
    dflags
            stripOnOff :: OnOff a -> a
    stripOnOff (On a
    x)  = a
    x
            stripOnOff (Off a
    x) = a
    x
        in
            if Extension
    ext Extension -> [Extension] -> Bool
    forall a. Eq a => a -> [a] -> Bool
    forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
    `elem` [Extension]
    referedExts then DynFlags
    dflags else DynFlags -> Extension -> DynFlags
    setUnset DynFlags
    dflags Extension
    ext

    xopt_DuplicateRecordFields :: DynFlags -> FieldLabel.DuplicateRecordFields
    xopt_DuplicateRecordFields :: DynFlags -> DuplicateRecordFields
    xopt_DuplicateRecordFields DynFlags
    dfs
      | Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.DuplicateRecordFields DynFlags
    dfs = DuplicateRecordFields
    FieldLabel.DuplicateRecordFields
      | Bool
    otherwise                              = DuplicateRecordFields
    FieldLabel.NoDuplicateRecordFields

    xopt_FieldSelectors :: DynFlags -> FieldLabel.FieldSelectors
    xopt_FieldSelectors :: DynFlags -> FieldSelectors
    xopt_FieldSelectors DynFlags
    dfs
      | Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.FieldSelectors DynFlags
    dfs = FieldSelectors
    FieldLabel.FieldSelectors
      | Bool
    otherwise                       = FieldSelectors
    FieldLabel.NoFieldSelectors

    lang_set :: DynFlags -> Maybe Language -> DynFlags
    lang_set :: DynFlags -> Maybe Language -> DynFlags
    lang_set DynFlags
    dflags Maybe Language
    lang =
       DynFlags
    dflags {
                language = lang,
                extensionFlags = flattenExtensionFlags lang (extensions dflags)
              }

    defaultFlags :: Settings -> [GeneralFlag]
    defaultFlags :: Settings -> [GeneralFlag]
    defaultFlags Settings
    settings
    -- See Note [Updating flag description in the User's Guide]
      = [ GeneralFlag
    Opt_AutoLinkPackages,
          GeneralFlag
    Opt_DiagnosticsShowCaret,
          GeneralFlag
    Opt_EmbedManifest,
          GeneralFlag
    Opt_FamAppCache,
          GeneralFlag
    Opt_GenManifest,
          GeneralFlag
    Opt_GhciHistory,
          GeneralFlag
    Opt_GhciSandbox,
          GeneralFlag
    Opt_HelpfulErrors,
          GeneralFlag
    Opt_KeepHiFiles,
          GeneralFlag
    Opt_KeepOFiles,
          GeneralFlag
    Opt_OmitYields,
          GeneralFlag
    Opt_PrintBindContents,
          GeneralFlag
    Opt_ProfCountEntries,
          GeneralFlag
    Opt_SharedImplib,
          GeneralFlag
    Opt_SimplPreInlining,
          GeneralFlag
    Opt_VersionMacros,
          GeneralFlag
    Opt_RPath,
          GeneralFlag
    Opt_DumpWithWays,
          GeneralFlag
    Opt_CompactUnwind,
          GeneralFlag
    Opt_ShowErrorContext,
          GeneralFlag
    Opt_SuppressStgReps,
          GeneralFlag
    Opt_UnoptimizedCoreForInterpreter,
          GeneralFlag
    Opt_SpecialiseIncoherents
        ]

        [GeneralFlag] -> [GeneralFlag] -> [GeneralFlag]
    forall a. [a] -> [a] -> [a]
    ++ [GeneralFlag
    f | ([Int]
    ns,GeneralFlag
    f) <- [([Int], GeneralFlag)]
    optLevelFlags, Int
    0 Int -> [Int] -> Bool
    forall a. Eq a => a -> [a] -> Bool
    forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
    `elem` [Int]
    ns]
                 -- The default -O0 options

        -- Default floating flags (see Note [RHS Floating])
        [GeneralFlag] -> [GeneralFlag] -> [GeneralFlag]
    forall a. [a] -> [a] -> [a]
    ++ [ GeneralFlag
    Opt_LocalFloatOut, GeneralFlag
    Opt_LocalFloatOutTopLevel ]

        [GeneralFlag] -> [GeneralFlag] -> [GeneralFlag]
    forall a. [a] -> [a] -> [a]
    ++ Platform -> [GeneralFlag]
    default_PIC Platform
    platform

        [GeneralFlag] -> [GeneralFlag] -> [GeneralFlag]
    forall a. [a] -> [a] -> [a]
    ++ [GeneralFlag]
    validHoleFitDefaults

        where platform :: Platform
    platform = Settings -> Platform
    sTargetPlatform Settings
    settings

    -- | These are the default settings for the display and sorting of valid hole
    --  fits in typed-hole error messages. See Note [Valid hole fits include ...]
     -- in the "GHC.Tc.Errors.Hole" module.
    validHoleFitDefaults :: [GeneralFlag]
    validHoleFitDefaults :: [GeneralFlag]
    validHoleFitDefaults
      =  [ GeneralFlag
    Opt_ShowTypeAppOfHoleFits
         , GeneralFlag
    Opt_ShowTypeOfHoleFits
         , GeneralFlag
    Opt_ShowProvOfHoleFits
         , GeneralFlag
    Opt_ShowMatchesOfHoleFits
         , GeneralFlag
    Opt_ShowValidHoleFits
         , GeneralFlag
    Opt_SortValidHoleFits
         , GeneralFlag
    Opt_SortBySizeHoleFits
         , GeneralFlag
    Opt_ShowHoleConstraints ]

    -- Note [When is StarIsType enabled]
    -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    -- The StarIsType extension determines whether to treat '*' as a regular type
    -- operator or as a synonym for 'Data.Kind.Type'. Many existing pre-TypeInType
    -- programs expect '*' to be synonymous with 'Type', so by default StarIsType is
    -- enabled.
    --
    -- Programs that use TypeOperators might expect to repurpose '*' for
    -- multiplication or another binary operation, but making TypeOperators imply
    -- NoStarIsType caused too much breakage on Hackage.
    --

    --
    -- Note [Documenting optimisation flags]
    -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    --
    -- If you change the list of flags enabled for particular optimisation levels
    -- please remember to update the User's Guide. The relevant file is:
    --
    --   docs/users_guide/using-optimisation.rst
    --
    -- Make sure to note whether a flag is implied by -O0, -O or -O2.

    optLevelFlags :: [([Int], GeneralFlag)]
    -- Default settings of flags, before any command-line overrides
    optLevelFlags :: [([Int], GeneralFlag)]
    optLevelFlags -- see Note [Documenting optimisation flags]
      = [ ([Int
    0,Int
    1,Int
    2], GeneralFlag
    Opt_DoLambdaEtaExpansion)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_DoCleverArgEtaExpansion) -- See Note [Eta expansion of arguments in CorePrep]
        , ([Int
    0,Int
    1,Int
    2], GeneralFlag
    Opt_DoEtaReduction)          -- See Note [Eta-reduction in -O0]
        , ([Int
    0,Int
    1,Int
    2], GeneralFlag
    Opt_ProfManualCcs )
        , ([Int
    2], GeneralFlag
    Opt_DictsStrict)

        , ([Int
    0],     GeneralFlag
    Opt_IgnoreInterfacePragmas)
        , ([Int
    0],     GeneralFlag
    Opt_OmitInterfacePragmas)

        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CoreConstantFolding)

        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CallArity)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_Exitification)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CaseMerge)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CaseFolding)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CmmElimCommonBlocks)
        , ([Int
    2],     GeneralFlag
    Opt_AsmShortcutting)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CmmSink)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CmmStaticPred)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CSE)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_StgCSE)
        , ([Int
    2],     GeneralFlag
    Opt_StgLiftLams)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CmmControlFlow)

        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_EnableRewriteRules)
              -- Off for -O0.   Otherwise we desugar list literals
              -- to 'build' but don't run the simplifier passes that
              -- would rewrite them back to cons cells!  This seems
              -- silly, and matters for the GHCi debugger.

        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_FloatIn)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_FullLaziness)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_IgnoreAsserts)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_Loopification)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CfgBlocklayout)      -- Experimental

        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_Specialise)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CrossModuleSpecialise)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_InlineGenerics)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_Strictness)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_UnboxSmallStrictFields)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_CprAnal)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_WorkerWrapper)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_SolveConstantDicts)
        , ([Int
    1,Int
    2],   GeneralFlag
    Opt_NumConstantFolding)

        , ([Int
    2],     GeneralFlag
    Opt_LiberateCase)
        , ([Int
    2],     GeneralFlag
    Opt_SpecConstr)
        , ([Int
    2],     GeneralFlag
    Opt_FastPAPCalls)
    --  , ([2],     Opt_RegsGraph)
    --   RegsGraph suffers performance regression. See #7679
    --  , ([2],     Opt_StaticArgumentTransformation)
    --   Static Argument Transformation needs investigation. See #9374
        ]

    type TurnOnFlag = Bool   -- True  <=> we are turning the flag on
                             -- False <=> we are turning the flag off
    turnOn  :: TurnOnFlag; turnOn :: Bool
    turnOn  = Bool
    True
    turnOff :: TurnOnFlag; turnOff :: Bool
    turnOff = Bool
    False

    default_PIC :: Platform -> [GeneralFlag]
    default_PIC :: Platform -> [GeneralFlag]
    default_PIC Platform
    platform =
      case (Platform -> OS
    platformOS Platform
    platform, Platform -> Arch
    platformArch Platform
    platform) of
        -- Darwin always requires PIC.  Especially on more recent macOS releases
        -- there will be a 4GB __ZEROPAGE that prevents us from using 32bit addresses
        -- while we could work around this on x86_64 (like WINE does), we won't be
        -- able on aarch64, where this is enforced.
        (OS
    OSDarwin,  Arch
    ArchX86_64)  -> [GeneralFlag
    Opt_PIC]
        -- For AArch64, we need to always have PIC enabled.  The relocation model
        -- on AArch64 does not permit arbitrary relocations.  Under ASLR, we can't
        -- control much how far apart symbols are in memory for our in-memory static
        -- linker;  and thus need to ensure we get sufficiently capable relocations.
        -- This requires PIC on AArch64, and ExternalDynamicRefs on Linux as on top
        -- of that.  Subsequently we expect all code on aarch64/linux (and macOS) to
        -- be built with -fPIC.
        (OS
    OSDarwin,  Arch
    ArchAArch64) -> [GeneralFlag
    Opt_PIC]
        (OS
    OSLinux,   Arch
    ArchAArch64) -> [GeneralFlag
    Opt_PIC, GeneralFlag
    Opt_ExternalDynamicRefs]
        (OS
    OSLinux,   ArchARM {})  -> [GeneralFlag
    Opt_PIC, GeneralFlag
    Opt_ExternalDynamicRefs]
        (OS
    OSOpenBSD, Arch
    ArchX86_64)  -> [GeneralFlag
    Opt_PIC] -- Due to PIE support in
                                             -- OpenBSD since 5.3 release
                                             -- (1 May 2013) we need to
                                             -- always generate PIC. See
                                             -- #10597 for more
                                             -- information.
        (OS, Arch)
    _                      -> []

    -- | The language extensions implied by the various language variants.
    -- When updating this be sure to update the flag documentation in
    -- @docs/users_guide/exts@.
    languageExtensions :: Maybe Language -> [LangExt.Extension]

    -- Nothing: the default case
    languageExtensions :: Maybe Language -> [Extension]
    languageExtensions Maybe Language
    Nothing = Maybe Language -> [Extension]
    languageExtensions (Language -> Maybe Language
    forall a. a -> Maybe a
    Just Language
    defaultLanguage)

    languageExtensions (Just Language
    Haskell98)
        = [Extension
    LangExt.ImplicitPrelude,
           -- See Note [When is StarIsType enabled]
           Extension
    LangExt.StarIsType,
           Extension
    LangExt.CUSKs,
           Extension
    LangExt.MonomorphismRestriction,
           Extension
    LangExt.NPlusKPatterns,
           Extension
    LangExt.DatatypeContexts,
           Extension
    LangExt.TraditionalRecordSyntax,
           Extension
    LangExt.FieldSelectors,
           Extension
    LangExt.NondecreasingIndentation,
               -- strictly speaking non-standard, but we always had this
               -- on implicitly before the option was added in 7.1, and
               -- turning it off breaks code, so we're keeping it on for
               -- backwards compatibility.  Cabal uses -XHaskell98 by
               -- default unless you specify another language.
           Extension
    LangExt.DeepSubsumption,
           -- Non-standard but enabled for backwards compatability (see GHC proposal #511)
           Extension
    LangExt.ListTuplePuns
          ]

    languageExtensions (Just Language
    Haskell2010)
        = [Extension
    LangExt.ImplicitPrelude,
           -- See Note [When is StarIsType enabled]
           Extension
    LangExt.StarIsType,
           Extension
    LangExt.CUSKs,
           Extension
    LangExt.MonomorphismRestriction,
           Extension
    LangExt.DatatypeContexts,
           Extension
    LangExt.TraditionalRecordSyntax,
           Extension
    LangExt.EmptyDataDecls,
           Extension
    LangExt.ForeignFunctionInterface,
           Extension
    LangExt.PatternGuards,
           Extension
    LangExt.DoAndIfThenElse,
           Extension
    LangExt.FieldSelectors,
           Extension
    LangExt.RelaxedPolyRec,
           Extension
    LangExt.DeepSubsumption,
           Extension
    LangExt.ListTuplePuns ]

    languageExtensions (Just Language
    GHC2021)
        = [Extension
    LangExt.ImplicitPrelude,
           -- See Note [When is StarIsType enabled]
           Extension
    LangExt.StarIsType,
           Extension
    LangExt.MonomorphismRestriction,
           Extension
    LangExt.TraditionalRecordSyntax,
           Extension
    LangExt.EmptyDataDecls,
           Extension
    LangExt.ForeignFunctionInterface,
           Extension
    LangExt.PatternGuards,
           Extension
    LangExt.DoAndIfThenElse,
           Extension
    LangExt.FieldSelectors,
           Extension
    LangExt.RelaxedPolyRec,
           Extension
    LangExt.ListTuplePuns,
           -- Now the new extensions (not in Haskell2010)
           Extension
    LangExt.BangPatterns,
           Extension
    LangExt.BinaryLiterals,
           Extension
    LangExt.ConstrainedClassMethods,
           Extension
    LangExt.ConstraintKinds,
           Extension
    LangExt.DeriveDataTypeable,
           Extension
    LangExt.DeriveFoldable,
           Extension
    LangExt.DeriveFunctor,
           Extension
    LangExt.DeriveGeneric,
           Extension
    LangExt.DeriveLift,
           Extension
    LangExt.DeriveTraversable,
           Extension
    LangExt.EmptyCase,
           Extension
    LangExt.EmptyDataDeriving,
           Extension
    LangExt.ExistentialQuantification,
           Extension
    LangExt.ExplicitForAll,
           Extension
    LangExt.FlexibleContexts,
           Extension
    LangExt.FlexibleInstances,
           Extension
    LangExt.GADTSyntax,
           Extension
    LangExt.GeneralizedNewtypeDeriving,
           Extension
    LangExt.HexFloatLiterals,
           Extension
    LangExt.ImportQualifiedPost,
           Extension
    LangExt.InstanceSigs,
           Extension
    LangExt.KindSignatures,
           Extension
    LangExt.MultiParamTypeClasses,
           Extension
    LangExt.NamedFieldPuns,
           Extension
    LangExt.NamedWildCards,
           Extension
    LangExt.NumericUnderscores,
           Extension
    LangExt.PolyKinds,
           Extension
    LangExt.PostfixOperators,
           Extension
    LangExt.RankNTypes,
           Extension
    LangExt.ScopedTypeVariables,
           Extension
    LangExt.StandaloneDeriving,
           Extension
    LangExt.StandaloneKindSignatures,
           Extension
    LangExt.TupleSections,
           Extension
    LangExt.TypeApplications,
           Extension
    LangExt.TypeOperators,
           Extension
    LangExt.TypeSynonymInstances]

    languageExtensions (Just Language
    GHC2024)
        = Maybe Language -> [Extension]
    languageExtensions (Language -> Maybe Language
    forall a. a -> Maybe a
    Just Language
    GHC2021) [Extension] -> [Extension] -> [Extension]
    forall a. [a] -> [a] -> [a]
    ++
          [Extension
    LangExt.DataKinds,
           Extension
    LangExt.DerivingStrategies,
           Extension
    LangExt.DisambiguateRecordFields,
           Extension
    LangExt.ExplicitNamespaces,
           Extension
    LangExt.GADTs,
           Extension
    LangExt.MonoLocalBinds,
           Extension
    LangExt.LambdaCase,
           Extension
    LangExt.RoleAnnotations]

    ways :: DynFlags -> Ways
    ways :: DynFlags -> Ways
    ways DynFlags
    dflags
       | DynFlags -> Bool
    dynamicNow DynFlags
    dflags = Way -> Ways -> Ways
    addWay Way
    WayDyn (DynFlags -> Ways
    targetWays_ DynFlags
    dflags)
       | Bool
    otherwise         = DynFlags -> Ways
    targetWays_ DynFlags
    dflags

    -- | Get target profile
    targetProfile :: DynFlags -> Profile
    targetProfile :: DynFlags -> Profile
    targetProfile DynFlags
    dflags = Platform -> Ways -> Profile
    Profile (DynFlags -> Platform
    targetPlatform DynFlags
    dflags) (DynFlags -> Ways
    ways DynFlags
    dflags)

    --
    -- System tool settings and locations

    programName :: DynFlags -> String
    programName :: DynFlags -> String
    programName DynFlags
    dflags = GhcNameVersion -> String
    ghcNameVersion_programName (GhcNameVersion -> String) -> GhcNameVersion -> String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> GhcNameVersion
    ghcNameVersion DynFlags
    dflags
    projectVersion :: DynFlags -> String
    projectVersion :: DynFlags -> String
    projectVersion DynFlags
    dflags = GhcNameVersion -> String
    ghcNameVersion_projectVersion (DynFlags -> GhcNameVersion
    ghcNameVersion DynFlags
    dflags)
    ghcUsagePath          :: DynFlags -> FilePath
    ghcUsagePath :: DynFlags -> String
    ghcUsagePath DynFlags
    dflags = FileSettings -> String
    fileSettings_ghcUsagePath (FileSettings -> String) -> FileSettings -> String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> FileSettings
    fileSettings DynFlags
    dflags
    ghciUsagePath         :: DynFlags -> FilePath
    ghciUsagePath :: DynFlags -> String
    ghciUsagePath DynFlags
    dflags = FileSettings -> String
    fileSettings_ghciUsagePath (FileSettings -> String) -> FileSettings -> String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> FileSettings
    fileSettings DynFlags
    dflags
    topDir                :: DynFlags -> FilePath
    topDir :: DynFlags -> String
    topDir DynFlags
    dflags = FileSettings -> String
    fileSettings_topDir (FileSettings -> String) -> FileSettings -> String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> FileSettings
    fileSettings DynFlags
    dflags
    toolDir               :: DynFlags -> Maybe FilePath
    toolDir :: DynFlags -> Maybe String
    toolDir DynFlags
    dflags = FileSettings -> Maybe String
    fileSettings_toolDir (FileSettings -> Maybe String) -> FileSettings -> Maybe String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> FileSettings
    fileSettings DynFlags
    dflags
    extraGccViaCFlags     :: DynFlags -> [String]
    extraGccViaCFlags :: DynFlags -> [String]
    extraGccViaCFlags DynFlags
    dflags = ToolSettings -> [String]
    toolSettings_extraGccViaCFlags (ToolSettings -> [String]) -> ToolSettings -> [String]
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> ToolSettings
    toolSettings DynFlags
    dflags
    globalPackageDatabasePath   :: DynFlags -> FilePath
    globalPackageDatabasePath :: DynFlags -> String
    globalPackageDatabasePath DynFlags
    dflags = FileSettings -> String
    fileSettings_globalPackageDatabase (FileSettings -> String) -> FileSettings -> String
    forall a b. (a -> b) -> a -> b
    $ DynFlags -> FileSettings
    fileSettings DynFlags
    dflags

    -- | The directory for this version of ghc in the user's app directory
    -- The appdir used to be in ~/.ghc but to respect the XDG specification
    -- we want to move it under $XDG_DATA_HOME/
    -- However, old tooling (like cabal) might still write package environments
    -- to the old directory, so we prefer that if a subdirectory of ~/.ghc
    -- with the correct target and GHC version suffix exists.
    --
    -- i.e. if ~/.ghc/$UNIQUE_SUBDIR exists we use that
    -- otherwise we use $XDG_DATA_HOME/$UNIQUE_SUBDIR
    --
    -- UNIQUE_SUBDIR is typically a combination of the target platform and GHC version
    versionedAppDir :: String -> ArchOS -> MaybeT IO FilePath
    versionedAppDir :: String -> ArchOS -> MaybeT IO String
    versionedAppDir String
    appname ArchOS
    platform = do
      -- Make sure we handle the case the HOME isn't set (see #11678)
      -- We need to fallback to the old scheme if the subdirectory exists.
      [MaybeT IO String] -> MaybeT IO String
    forall (t :: * -> *) (m :: * -> *) a.
    (Foldable t, MonadPlus m) =>
    t (m a) -> m a
    msum ([MaybeT IO String] -> MaybeT IO String)
    -> [MaybeT IO String] -> MaybeT IO String
    forall a b. (a -> b) -> a -> b
    $ (MaybeT IO String -> MaybeT IO String)
    -> [MaybeT IO String] -> [MaybeT IO String]
    forall a b. (a -> b) -> [a] -> [b]
    map (String -> MaybeT IO String
    checkIfExists (String -> MaybeT IO String)
    -> (MaybeT IO String -> MaybeT IO String)
    -> MaybeT IO String
    -> MaybeT IO String
    forall (m :: * -> *) b c a.
    Monad m =>
    (b -> m c) -> (a -> m b) -> a -> m c
    <=< (String -> String) -> MaybeT IO String -> MaybeT IO String
    forall a b. (a -> b) -> MaybeT IO a -> MaybeT IO b
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    fmap (String -> String -> String
    </> ArchOS -> String
    versionedFilePath ArchOS
    platform))
           [ IO String -> MaybeT IO String
    forall a. IO a -> MaybeT IO a
    tryMaybeT (IO String -> MaybeT IO String) -> IO String -> MaybeT IO String
    forall a b. (a -> b) -> a -> b
    $ String -> IO String
    getAppUserDataDirectory String
    appname  -- this is ~/.ghc/
           , IO String -> MaybeT IO String
    forall a. IO a -> MaybeT IO a
    tryMaybeT (IO String -> MaybeT IO String) -> IO String -> MaybeT IO String
    forall a b. (a -> b) -> a -> b
    $ XdgDirectory -> String -> IO String
    getXdgDirectory XdgDirectory
    XdgData String
    appname -- this is $XDG_DATA_HOME/
           ]
      where
        checkIfExists :: String -> MaybeT IO String
    checkIfExists String
    dir = IO Bool -> MaybeT IO Bool
    forall a. IO a -> MaybeT IO a
    tryMaybeT (String -> IO Bool
    doesDirectoryExist String
    dir) MaybeT IO Bool -> (Bool -> MaybeT IO String) -> MaybeT IO String
    forall a b. MaybeT IO a -> (a -> MaybeT IO b) -> MaybeT IO b
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= \case
          Bool
    True -> String -> MaybeT IO String
    forall a. a -> MaybeT IO a
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure String
    dir
          Bool
    False -> IO (Maybe String) -> MaybeT IO String
    forall (m :: * -> *) a. m (Maybe a) -> MaybeT m a
    MaybeT (Maybe String -> IO (Maybe String)
    forall a. a -> IO a
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure Maybe String
    forall a. Maybe a
    Nothing)

    versionedFilePath :: ArchOS -> FilePath
    versionedFilePath :: ArchOS -> String
    versionedFilePath ArchOS
    platform = ArchOS -> String
    uniqueSubdir ArchOS
    platform

    -- SDoc
    -------------------------------------------
    -- | Initialize the pretty-printing options
    initSDocContext :: DynFlags -> PprStyle -> SDocContext
    initSDocContext :: DynFlags -> PprStyle -> SDocContext
    initSDocContext DynFlags
    dflags PprStyle
    style = SDC
      { sdocStyle :: PprStyle
    sdocStyle                       = PprStyle
    style
      , sdocColScheme :: Scheme
    sdocColScheme                   = DynFlags -> Scheme
    colScheme DynFlags
    dflags
      , sdocLastColour :: PprColour
    sdocLastColour                  = PprColour
    Col.colReset
      , sdocShouldUseColor :: Bool
    sdocShouldUseColor              = Bool -> OverridingBool -> Bool
    overrideWith (DynFlags -> Bool
    canUseColor DynFlags
    dflags) (DynFlags -> OverridingBool
    useColor DynFlags
    dflags)
      , sdocDefaultDepth :: Int
    sdocDefaultDepth                = DynFlags -> Int
    pprUserLength DynFlags
    dflags
      , sdocLineLength :: Int
    sdocLineLength                  = DynFlags -> Int
    pprCols DynFlags
    dflags
      , sdocCanUseUnicode :: Bool
    sdocCanUseUnicode               = DynFlags -> Bool
    useUnicode DynFlags
    dflags
      , sdocPrintErrIndexLinks :: Bool
    sdocPrintErrIndexLinks          = Bool -> OverridingBool -> Bool
    overrideWith (DynFlags -> Bool
    canUseErrorLinks DynFlags
    dflags) (DynFlags -> OverridingBool
    useErrorLinks DynFlags
    dflags)
      , sdocHexWordLiterals :: Bool
    sdocHexWordLiterals             = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_HexWordLiterals DynFlags
    dflags
      , sdocPprDebug :: Bool
    sdocPprDebug                    = DumpFlag -> DynFlags -> Bool
    dopt DumpFlag
    Opt_D_ppr_debug DynFlags
    dflags
      , sdocPrintUnicodeSyntax :: Bool
    sdocPrintUnicodeSyntax          = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintUnicodeSyntax DynFlags
    dflags
      , sdocPrintCaseAsLet :: Bool
    sdocPrintCaseAsLet              = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PprCaseAsLet DynFlags
    dflags
      , sdocPrintTypecheckerElaboration :: Bool
    sdocPrintTypecheckerElaboration = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintTypecheckerElaboration DynFlags
    dflags
      , sdocPrintAxiomIncomps :: Bool
    sdocPrintAxiomIncomps           = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintAxiomIncomps DynFlags
    dflags
      , sdocPrintExplicitKinds :: Bool
    sdocPrintExplicitKinds          = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintExplicitKinds DynFlags
    dflags
      , sdocPrintExplicitCoercions :: Bool
    sdocPrintExplicitCoercions      = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintExplicitCoercions DynFlags
    dflags
      , sdocPrintExplicitRuntimeReps :: Bool
    sdocPrintExplicitRuntimeReps    = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintExplicitRuntimeReps DynFlags
    dflags
      , sdocPrintExplicitForalls :: Bool
    sdocPrintExplicitForalls        = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintExplicitForalls DynFlags
    dflags
      , sdocPrintPotentialInstances :: Bool
    sdocPrintPotentialInstances     = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintPotentialInstances DynFlags
    dflags
      , sdocPrintEqualityRelations :: Bool
    sdocPrintEqualityRelations      = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintEqualityRelations DynFlags
    dflags
      , sdocSuppressTicks :: Bool
    sdocSuppressTicks               = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressTicks DynFlags
    dflags
      , sdocSuppressTypeSignatures :: Bool
    sdocSuppressTypeSignatures      = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressTypeSignatures DynFlags
    dflags
      , sdocSuppressTypeApplications :: Bool
    sdocSuppressTypeApplications    = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressTypeApplications DynFlags
    dflags
      , sdocSuppressIdInfo :: Bool
    sdocSuppressIdInfo              = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressIdInfo DynFlags
    dflags
      , sdocSuppressCoercions :: Bool
    sdocSuppressCoercions           = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressCoercions DynFlags
    dflags
      , sdocSuppressCoercionTypes :: Bool
    sdocSuppressCoercionTypes       = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressCoercionTypes DynFlags
    dflags
      , sdocSuppressUnfoldings :: Bool
    sdocSuppressUnfoldings          = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressUnfoldings DynFlags
    dflags
      , sdocSuppressVarKinds :: Bool
    sdocSuppressVarKinds            = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressVarKinds DynFlags
    dflags
      , sdocSuppressUniques :: Bool
    sdocSuppressUniques             = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressUniques DynFlags
    dflags
      , sdocSuppressModulePrefixes :: Bool
    sdocSuppressModulePrefixes      = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressModulePrefixes DynFlags
    dflags
      , sdocSuppressStgExts :: Bool
    sdocSuppressStgExts             = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressStgExts DynFlags
    dflags
      , sdocSuppressStgReps :: Bool
    sdocSuppressStgReps             = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_SuppressStgReps DynFlags
    dflags
      , sdocErrorSpans :: Bool
    sdocErrorSpans                  = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_ErrorSpans DynFlags
    dflags
      , sdocStarIsType :: Bool
    sdocStarIsType                  = Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.StarIsType DynFlags
    dflags
      , sdocLinearTypes :: Bool
    sdocLinearTypes                 = Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.LinearTypes DynFlags
    dflags
      , sdocListTuplePuns :: Bool
    sdocListTuplePuns               = Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.ListTuplePuns DynFlags
    dflags
      , sdocPrintTypeAbbreviations :: Bool
    sdocPrintTypeAbbreviations      = Bool
    True
      , sdocUnitIdForUser :: FastString -> SDoc
    sdocUnitIdForUser               = FastString -> SDoc
    forall doc. IsLine doc => FastString -> doc
    ftext
      }

    -- | Initialize the pretty-printing options using the default user style
    initDefaultSDocContext :: DynFlags -> SDocContext
    initDefaultSDocContext :: DynFlags -> SDocContext
    initDefaultSDocContext DynFlags
    dflags = DynFlags -> PprStyle -> SDocContext
    initSDocContext DynFlags
    dflags PprStyle
    defaultUserStyle

    initPromotionTickContext :: DynFlags -> PromotionTickContext
    initPromotionTickContext :: DynFlags -> PromotionTickContext
    initPromotionTickContext DynFlags
    dflags =
      PromTickCtx {
        ptcListTuplePuns :: Bool
    ptcListTuplePuns = Extension -> DynFlags -> Bool
    xopt Extension
    LangExt.ListTuplePuns DynFlags
    dflags,
        ptcPrintRedundantPromTicks :: Bool
    ptcPrintRedundantPromTicks = GeneralFlag -> DynFlags -> Bool
    gopt GeneralFlag
    Opt_PrintRedundantPromotionTicks DynFlags
    dflags
      }

    -- -----------------------------------------------------------------------------
    -- SSE, AVX, FMA

    isSse4_2Enabled :: DynFlags -> Bool
    isSse4_2Enabled :: DynFlags -> Bool
    isSse4_2Enabled DynFlags
    dflags = DynFlags -> Maybe SseVersion
    sseVersion DynFlags
    dflags Maybe SseVersion -> Maybe SseVersion -> Bool
    forall a. Ord a => a -> a -> Bool
    >= SseVersion -> Maybe SseVersion
    forall a. a -> Maybe a
    Just SseVersion
    SSE42

    isAvxEnabled :: DynFlags -> Bool
    isAvxEnabled :: DynFlags -> Bool
    isAvxEnabled DynFlags
    dflags = DynFlags -> Bool
    avx DynFlags
    dflags Bool -> Bool -> Bool
    || DynFlags -> Bool
    avx2 DynFlags
    dflags Bool -> Bool -> Bool
    || DynFlags -> Bool
    avx512f DynFlags
    dflags

    isAvx2Enabled :: DynFlags -> Bool
    isAvx2Enabled :: DynFlags -> Bool
    isAvx2Enabled DynFlags
    dflags = DynFlags -> Bool
    avx2 DynFlags
    dflags Bool -> Bool -> Bool
    || DynFlags -> Bool
    avx512f DynFlags
    dflags

    isAvx512cdEnabled :: DynFlags -> Bool
    isAvx512cdEnabled :: DynFlags -> Bool
    isAvx512cdEnabled DynFlags
    dflags = DynFlags -> Bool
    avx512cd DynFlags
    dflags

    isAvx512erEnabled :: DynFlags -> Bool
    isAvx512erEnabled :: DynFlags -> Bool
    isAvx512erEnabled DynFlags
    dflags = DynFlags -> Bool
    avx512er DynFlags
    dflags

    isAvx512fEnabled :: DynFlags -> Bool
    isAvx512fEnabled :: DynFlags -> Bool
    isAvx512fEnabled DynFlags
    dflags = DynFlags -> Bool
    avx512f DynFlags
    dflags

    isAvx512pfEnabled :: DynFlags -> Bool
    isAvx512pfEnabled :: DynFlags -> Bool
    isAvx512pfEnabled DynFlags
    dflags = DynFlags -> Bool
    avx512pf DynFlags
    dflags

    isFmaEnabled :: DynFlags -> Bool
    isFmaEnabled :: DynFlags -> Bool
    isFmaEnabled DynFlags
    dflags = DynFlags -> Bool
    fma DynFlags
    dflags

    -- -----------------------------------------------------------------------------
    -- BMI2

    isBmiEnabled :: DynFlags -> Bool
    isBmiEnabled :: DynFlags -> Bool
    isBmiEnabled DynFlags
    dflags = case Platform -> Arch
    platformArch (DynFlags -> Platform
    targetPlatform DynFlags
    dflags) of
        Arch
    ArchX86_64 -> DynFlags -> Maybe BmiVersion
    bmiVersion DynFlags
    dflags Maybe BmiVersion -> Maybe BmiVersion -> Bool
    forall a. Ord a => a -> a -> Bool
    >= BmiVersion -> Maybe BmiVersion
    forall a. a -> Maybe a
    Just BmiVersion
    BMI1
        Arch
    ArchX86    -> DynFlags -> Maybe BmiVersion
    bmiVersion DynFlags
    dflags Maybe BmiVersion -> Maybe BmiVersion -> Bool
    forall a. Ord a => a -> a -> Bool
    >= BmiVersion -> Maybe BmiVersion
    forall a. a -> Maybe a
    Just BmiVersion
    BMI1
        Arch
    _          -> Bool
    False

    isBmi2Enabled :: DynFlags -> Bool
    isBmi2Enabled :: DynFlags -> Bool
    isBmi2Enabled DynFlags
    dflags = case Platform -> Arch
    platformArch (DynFlags -> Platform
    targetPlatform DynFlags
    dflags) of
        Arch
    ArchX86_64 -> DynFlags -> Maybe BmiVersion
    bmiVersion DynFlags
    dflags Maybe BmiVersion -> Maybe BmiVersion -> Bool
    forall a. Ord a => a -> a -> Bool
    >= BmiVersion -> Maybe BmiVersion
    forall a. a -> Maybe a
    Just BmiVersion
    BMI2
        Arch
    ArchX86    -> DynFlags -> Maybe BmiVersion
    bmiVersion DynFlags
    dflags Maybe BmiVersion -> Maybe BmiVersion -> Bool
    forall a. Ord a => a -> a -> Bool
    >= BmiVersion -> Maybe BmiVersion
    forall a. a -> Maybe a
    Just BmiVersion
    BMI2
        Arch
    _          -> Bool
    False