    {-# LANGUAGE Trustworthy #-}
    {-# LANGUAGE MagicHash, NoImplicitPrelude, UnboxedTuples, UnliftedFFITypes #-}

    -- | Users should not import this module.  It is GHC internal only.

    module GHC.Debug ( debugLn, debugErrLn ) where

    import GHC.Prim
    import GHC.Types
    import GHC.Tuple ()

    debugLn :: [Char] -> IO ()
    debugLn :: [Char] -> IO ()
    debugLn [Char]
    xs = (State# RealWorld -> (# State# RealWorld, () #)) -> IO ()
    forall a. (State# RealWorld -> (# State# RealWorld, a #)) -> IO a
    IO (\State# RealWorld
    s0 ->
                     case State# RealWorld
    -> [Char] -> (# State# RealWorld, MutableByteArray# RealWorld #)
    mkMBA State# RealWorld
    s0 [Char]
    xs of
                     (# State# RealWorld
    s1, MutableByteArray# RealWorld
    mba #) ->
                         case MutableByteArray# RealWorld -> IO ()
    c_debugLn MutableByteArray# RealWorld
    mba of
                         IO State# RealWorld -> (# State# RealWorld, () #)
    f -> State# RealWorld -> (# State# RealWorld, () #)
    f State# RealWorld
    s1)

    debugErrLn :: [Char] -> IO ()
    debugErrLn :: [Char] -> IO ()
    debugErrLn [Char]
    xs = (State# RealWorld -> (# State# RealWorld, () #)) -> IO ()
    forall a. (State# RealWorld -> (# State# RealWorld, a #)) -> IO a
    IO (\State# RealWorld
    s0 ->
                        case State# RealWorld
    -> [Char] -> (# State# RealWorld, MutableByteArray# RealWorld #)
    mkMBA State# RealWorld
    s0 [Char]
    xs of
                        (# State# RealWorld
    s1, MutableByteArray# RealWorld
    mba #) ->
                            case MutableByteArray# RealWorld -> IO ()
    c_debugErrLn MutableByteArray# RealWorld
    mba of
                            IO State# RealWorld -> (# State# RealWorld, () #)
    f -> State# RealWorld -> (# State# RealWorld, () #)
    f State# RealWorld
    s1)

    foreign import ccall unsafe "debugLn"
        c_debugLn :: MutableByteArray# RealWorld -> IO ()

    foreign import ccall unsafe "debugErrLn"
        c_debugErrLn :: MutableByteArray# RealWorld -> IO ()

    mkMBA :: State# RealWorld -> [Char] ->
             (# State# RealWorld, MutableByteArray# RealWorld #)
    mkMBA :: State# RealWorld
    -> [Char] -> (# State# RealWorld, MutableByteArray# RealWorld #)
    mkMBA State# RealWorld
    s0 [Char]
    xs = -- Start with 1 so that we have space to put in a \0 at
                  -- the end
                  case Int# -> [Char] -> Int#
    forall {a}. Int# -> [a] -> Int#
    len Int#
    1# [Char]
    xs of
                  Int#
    l ->
                      case Int#
    -> State# RealWorld
    -> (# State# RealWorld, MutableByteArray# RealWorld #)
    forall d. Int# -> State# d -> (# State# d, MutableByteArray# d #)
    newByteArray# Int#
    l State# RealWorld
    s0 of
                      (# State# RealWorld
    s1, MutableByteArray# RealWorld
    mba #) ->
                          case MutableByteArray# RealWorld
    -> Int# -> [Char] -> State# RealWorld -> State# RealWorld
    forall {d}.
    MutableByteArray# d -> Int# -> [Char] -> State# d -> State# d
    write MutableByteArray# RealWorld
    mba Int#
    0# [Char]
    xs State# RealWorld
    s1 of
                          State# RealWorld
    s2 -> (# State# RealWorld
    s2, MutableByteArray# RealWorld
    mba #)
        where len :: Int# -> [a] -> Int#
    len Int#
    l [] = Int#
    l
              len Int#
    l (a
    _ : [a]
    xs') = Int# -> [a] -> Int#
    len (Int#
    l Int# -> Int# -> Int#
    +# Int#
    1#) [a]
    xs'

              write :: MutableByteArray# d -> Int# -> [Char] -> State# d -> State# d
    write MutableByteArray# d
    mba Int#
    offset [] State# d
    s = MutableByteArray# d -> Int# -> Char# -> State# d -> State# d
    forall d.
    MutableByteArray# d -> Int# -> Char# -> State# d -> State# d
    writeCharArray# MutableByteArray# d
    mba Int#
    offset Char#
    '\0'# State# d
    s
              write MutableByteArray# d
    mba Int#
    offset (C# Char#
    x : [Char]
    xs') State# d
    s
                  = case MutableByteArray# d -> Int# -> Char# -> State# d -> State# d
    forall d.
    MutableByteArray# d -> Int# -> Char# -> State# d -> State# d
    writeCharArray# MutableByteArray# d
    mba Int#
    offset Char#
    x State# d
    s of
                    State# d
    s' ->
                        MutableByteArray# d -> Int# -> [Char] -> State# d -> State# d
    write MutableByteArray# d
    mba (Int#
    offset Int# -> Int# -> Int#
    +# Int#
    1#) [Char]
    xs' State# d
    s'