{-# OPTIONS -fno-warn-unused-imports #-}
{-# LANGUAGE Trustworthy #-}
module Data.Time.Clock.Internal.NominalDiffTime
    (
    NominalDiffTime,
    secondsToNominalDiffTime,
    nominalDiffTimeToSeconds,
    nominalDay,
    ) where

import Data.Typeable
import Data.Data
import Data.Fixed
import Data.Time.Calendar.Days
import Control.DeepSeq


-- | This is a length of time, as measured by UTC.
-- It has a precision of 10^-12 s.
--
-- Conversion functions will treat it as seconds.
-- For example, @(0.010 :: NominalDiffTime)@ corresponds to 10 milliseconds.
--
-- It ignores leap-seconds, so it's not necessarily a fixed amount of clock time.
-- For instance, 23:00 UTC + 2 hours of NominalDiffTime = 01:00 UTC (+ 1 day),
-- regardless of whether a leap-second intervened.
newtype NominalDiffTime = MkNominalDiffTime Pico deriving (NominalDiffTime -> NominalDiffTime -> Bool
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-- | Create a 'NominalDiffTime' from a number of seconds.
--
-- @since 1.9.1
secondsToNominalDiffTime :: Pico -> NominalDiffTime
secondsToNominalDiffTime :: Pico -> NominalDiffTime
secondsToNominalDiffTime = Pico -> NominalDiffTime
MkNominalDiffTime

-- | Get the seconds in a 'NominalDiffTime'.
--
-- @since 1.9.1
nominalDiffTimeToSeconds :: NominalDiffTime -> Pico
nominalDiffTimeToSeconds :: NominalDiffTime -> Pico
nominalDiffTimeToSeconds (MkNominalDiffTime Pico
t) = Pico
t

-- necessary because H98 doesn't have "cunning newtype" derivation
instance NFData NominalDiffTime where -- FIXME: Data.Fixed had no NFData instances yet at time of writing
    rnf :: NominalDiffTime -> ()
rnf NominalDiffTime
ndt = NominalDiffTime -> () -> ()
seq NominalDiffTime
ndt ()

instance Enum NominalDiffTime where
    succ :: NominalDiffTime -> NominalDiffTime
succ (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Enum a => a -> a
succ Pico
a)
    pred :: NominalDiffTime -> NominalDiffTime
pred (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Enum a => a -> a
pred Pico
a)
    toEnum :: Int -> NominalDiffTime
toEnum = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> NominalDiffTime)
-> (Int -> Pico) -> Int -> NominalDiffTime
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. Int -> Pico
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toEnum
    fromEnum :: NominalDiffTime -> Int
fromEnum (MkNominalDiffTime Pico
a) = Pico -> Int
forall a. Enum a => a -> Int
fromEnum Pico
a
    enumFrom :: NominalDiffTime -> [NominalDiffTime]
enumFrom (MkNominalDiffTime Pico
a) = (Pico -> NominalDiffTime) -> [Pico] -> [NominalDiffTime]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> [Pico]
forall a. Enum a => a -> [a]
enumFrom Pico
a)
    enumFromThen :: NominalDiffTime -> NominalDiffTime -> [NominalDiffTime]
enumFromThen (MkNominalDiffTime Pico
a) (MkNominalDiffTime Pico
b) = (Pico -> NominalDiffTime) -> [Pico] -> [NominalDiffTime]
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b)
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enumFromTo (MkNominalDiffTime Pico
a) (MkNominalDiffTime Pico
b) = (Pico -> NominalDiffTime) -> [Pico] -> [NominalDiffTime]
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b)
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-> NominalDiffTime -> NominalDiffTime -> [NominalDiffTime]
enumFromThenTo (MkNominalDiffTime Pico
a) (MkNominalDiffTime Pico
b) (MkNominalDiffTime Pico
c) = (Pico -> NominalDiffTime) -> [Pico] -> [NominalDiffTime]
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MkNominalDiffTime (Pico -> Pico -> Pico -> [Pico]
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enumFromThenTo Pico
a Pico
b Pico
c)

instance Show NominalDiffTime where
    show :: NominalDiffTime -> String
show (MkNominalDiffTime Pico
t) = (Bool -> Pico -> String
forall {k} (a :: k). HasResolution a => Bool -> Fixed a -> String
showFixed Bool
True Pico
t) String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
"s"

-- necessary because H98 doesn't have "cunning newtype" derivation
instance Num NominalDiffTime where
    (MkNominalDiffTime Pico
a) + :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime
+ (MkNominalDiffTime Pico
b) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico
a Pico -> Pico -> Pico
forall a. Num a => a -> a -> a
+ Pico
b)
    (MkNominalDiffTime Pico
a) - :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime
- (MkNominalDiffTime Pico
b) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico
a Pico -> Pico -> Pico
forall a. Num a => a -> a -> a
- Pico
b)
    (MkNominalDiffTime Pico
a) * :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime
* (MkNominalDiffTime Pico
b) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico
a Pico -> Pico -> Pico
forall a. Num a => a -> a -> a
* Pico
b)
    negate :: NominalDiffTime -> NominalDiffTime
negate (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Num a => a -> a
negate Pico
a)
    abs :: NominalDiffTime -> NominalDiffTime
abs (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Num a => a -> a
abs Pico
a)
    signum :: NominalDiffTime -> NominalDiffTime
signum (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Num a => a -> a
signum Pico
a)
    fromInteger :: Integer -> NominalDiffTime
fromInteger Integer
i = Pico -> NominalDiffTime
MkNominalDiffTime (Integer -> Pico
forall a. Num a => Integer -> a
fromInteger Integer
i)

-- necessary because H98 doesn't have "cunning newtype" derivation
instance Real NominalDiffTime where
    toRational :: NominalDiffTime -> Rational
toRational (MkNominalDiffTime Pico
a) = Pico -> Rational
forall a. Real a => a -> Rational
toRational Pico
a

-- necessary because H98 doesn't have "cunning newtype" derivation
instance Fractional NominalDiffTime where
    (MkNominalDiffTime Pico
a) / :: NominalDiffTime -> NominalDiffTime -> NominalDiffTime
/ (MkNominalDiffTime Pico
b) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico
a Pico -> Pico -> Pico
forall a. Fractional a => a -> a -> a
/ Pico
b)
    recip :: NominalDiffTime -> NominalDiffTime
recip (MkNominalDiffTime Pico
a) = Pico -> NominalDiffTime
MkNominalDiffTime (Pico -> Pico
forall a. Fractional a => a -> a
recip Pico
a)
    fromRational :: Rational -> NominalDiffTime
fromRational Rational
r = Pico -> NominalDiffTime
MkNominalDiffTime (Rational -> Pico
forall a. Fractional a => Rational -> a
fromRational Rational
r)

-- necessary because H98 doesn't have "cunning newtype" derivation
instance RealFrac NominalDiffTime where
    properFraction :: forall b. Integral b => NominalDiffTime -> (b, NominalDiffTime)
properFraction (MkNominalDiffTime Pico
a) = (b
i,Pico -> NominalDiffTime
MkNominalDiffTime Pico
f) where
        (b
i,Pico
f) = Pico -> (b, Pico)
forall a b. (RealFrac a, Integral b) => a -> (b, a)
properFraction Pico
a
    truncate :: forall b. Integral b => NominalDiffTime -> b
truncate (MkNominalDiffTime Pico
a) = Pico -> b
forall a b. (RealFrac a, Integral b) => a -> b
truncate Pico
a
    round :: forall b. Integral b => NominalDiffTime -> b
round (MkNominalDiffTime Pico
a) = Pico -> b
forall a b. (RealFrac a, Integral b) => a -> b
round Pico
a
    ceiling :: forall b. Integral b => NominalDiffTime -> b
ceiling (MkNominalDiffTime Pico
a) = Pico -> b
forall a b. (RealFrac a, Integral b) => a -> b
ceiling Pico
a
    floor :: forall b. Integral b => NominalDiffTime -> b
floor (MkNominalDiffTime Pico
a) = Pico -> b
forall a b. (RealFrac a, Integral b) => a -> b
floor Pico
a

{-# RULES
"realToFrac/DiffTime->NominalDiffTime"   realToFrac = \ dt -> MkNominalDiffTime (realToFrac dt)
"realToFrac/NominalDiffTime->DiffTime"   realToFrac = \ (MkNominalDiffTime ps) -> realToFrac ps

"realToFrac/NominalDiffTime->Pico"       realToFrac = \ (MkNominalDiffTime ps) -> ps
"realToFrac/Pico->NominalDiffTime"       realToFrac = MkNominalDiffTime
  #-}

-- | One day in 'NominalDiffTime'.
nominalDay :: NominalDiffTime
nominalDay :: NominalDiffTime
nominalDay = NominalDiffTime
86400