Alternative to Haskell Prelude.Num, deriving types bottom-up
Home Page: https://hackage.haskell.org/package/mixed-types-num
License: BSD 3-Clause "New" or "Revised" License
This is currently breaking aern2-mp's build. In particular:
[ 7 of 25] Compiling AERN2.MP.Float.UseRounded.Conversions ( src/AERN2/MP/Float/UseRounded/Conversions.hs, dist/build/AERN2/MP/Float/UseRounded/Conversions.o )
src/AERN2/MP/Float/UseRounded/Conversions.hs:64:25: error:
• Variable not in scope: quot :: Integer -> Integer -> Integer
• Perhaps you meant ‘P.quot’ (imported from Prelude)
|
64 | n = (numerator r) `quot` (denominator r)
| ^^^^^^
It appears that the problem is the addition of Integral (..) to the list of hidden typeclasses in the PreludeHiding module.
Preprocessing test suite 'spec' for mixed-types-num-0.2...
[1 of 9] Compiling Numeric.MixedTypes.RoundSpec ( test/Numeric/MixedTypes/RoundSpec.hs, dist/build/spec/spec-tmp/Numeric/MixedTypes/RoundSpec.o )
test/Numeric/MixedTypes/RoundSpec.hs:14:1: error:
Failed to load interface for ‘Numeric.MixedTypes’
Perhaps you meant
Numeric.MixedTypes.Eq (from mixed-types-num-0.2)
Numeric.MixedTypes.Ord (from mixed-types-num-0.2)
Numeric.MixedTypes.Bool (from mixed-types-num-0.2)
Use -v to see a list of the files searched for.
Building library for mixed-types-num-0.5.11..
[ 1 of 24] Compiling Data.Convertible.Base
/var/stackage/work/unpack-dir/unpacked/mixed-types-num-0.5.11-4964cc20935da519bedbcb8f61d873a04cc2ed0b4c212abfc0539aaab018f41
7/src/Data/Convertible/Base.hs:39:1: error:
Could not find module ‘Control.Monad.Error’
Perhaps you meant Control.Monad.Co (needs flag -package-id kan-extensions-5.2.5)
Control.Monad.Log (needs flag -package-id logging-effect-1.4.0)
Control.Monad.Try (needs flag -package-id typecheck-plugin-nat-simple-0.1.0.9)
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
39 | import Control.Monad.Error
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
/Users/dan/scratch/mixed-types-num-0.4.0/test/Numeric/MixedTypes/MinMaxAbsSpec.hs:20:3: error:
• No instance for (CanTestFinite Int)
arising from a use of ‘specCanMinMaxNotMixed’
• In a stmt of a 'do' block: specCanMinMaxNotMixed tInt
In the expression:
do specCanMinMaxNotMixed tInt
specCanMinMaxNotMixed tInteger
specCanMinMaxNotMixed tRational
specCanMinMax tInt tInteger tRational
....
In an equation for ‘spec’:
spec
= do specCanMinMaxNotMixed tInt
specCanMinMaxNotMixed tInteger
specCanMinMaxNotMixed tRational
....
|
20 | specCanMinMaxNotMixed tInt
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
I was able to reproduce this locally like so:
stack unpack mixed-types-num-0.4.0 && cd mixed-types-num-0.4.0
echo 'resolver: nightly-2019-04-10' > stack.yaml
stack build --test --bench --no-run-benchmarks --fast
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