git.iko.soy/typeable/aeson
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attempt cpp fix for older version of time

I don't really like this approach, and unsafeCoerce is sadly necessary. The only alternative is `diffTimeToPicoseconds = round . (* 1e12) . toRational` but that has worse performance (I assume!) compared to a coercion.

commitd4c92c3f7b4defe417795030b953e0fc089576b6 authorAdam Schønemann <adamschoenemann@gmail.com> dateTue 11 Sep 2018, 21:29 (8 years ago) parent2ff2196
1 file changed+17−1
compare with master
unifiedsplit
attoparsec-iso8601/Data/Attoparsec/Time/Internal.hs+17−1
attoparsec-iso8601/Data/Attoparsec/Time/Internal.hs+17−1
@@ -21,13 +21,29 @@ import Prelude.Compat
2121
2222import Data.Int (Int64)
2323import Data.Time
24−import Data.Time.Clock (diffTimeToPicoseconds)
2524import Unsafe.Coerce (unsafeCoerce)
2625
26+#if MIN_VERSION_time(1,6,0)
27+
28+import Data.Time.Clock (diffTimeToPicoseconds)
29+
30+#endif
31+
2732#if MIN_VERSION_base(4,7,0)
2833
2934import Data.Fixed (Pico, Fixed(MkFixed))
3035
36+#endif
37+
38+#if !MIN_VERSION_time(1,6,0)
39+
40+diffTimeToPicoseconds :: DiffTime -> Integer
41+diffTimeToPicoseconds = unsafeCoerce
42+
43+#endif
44+
45+#if MIN_VERSION_base(4,7,0)
46+
3147toPico :: Integer -> Pico
3248toPico = MkFixed
3349