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Add proper eq and ord instances for ZonedTime #9

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Add proper eq and ord instances for ZonedTime #9

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1c6d926
Added Eq and Ord instances for LocalTime.
pharpend Nov 3, 2014
d9bf1da
Fix Eq instance for ZonedTime.
pharpend Nov 3, 2014
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11 changes: 10 additions & 1 deletion lib/Data/Time/LocalTime/LocalTime.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ import Data.Typeable
#if LANGUAGE_Rank2Types
import Data.Data
#endif
import Data.Ord (comparing)

-- | A simple day and time aggregate, where the day is of the specified parameter,
-- and the time is a TimeOfDay.
Expand Down Expand Up @@ -75,11 +76,19 @@ data ZonedTime = ZonedTime {
#if LANGUAGE_DeriveDataTypeable
#if LANGUAGE_Rank2Types
#if HAS_DataPico
deriving (Data, Typeable)
deriving (Data, Typeable)
#endif
#endif
#endif

instance Eq ZonedTime where
t1 == t2 = case comparing zonedTimeToUTC t1 t2 of
EQ -> True
_ -> False

instance Ord ZonedTime where
compare = comparing zonedTimeToUTC

instance NFData ZonedTime where
rnf (ZonedTime lt z) = lt `deepseq` z `deepseq` ()

Expand Down