On 10/03/2012 02:04 PM, Ertugrul Söylemez wrote:
When you write 'pure 1.0', then you're using, say, Double's Fractional instance directly. If you write just '1.0', then you're using Wire's Fractional instance, which is just defined as:
fromRational = pure . fromRational
So it's the same thing.
Let me simplify the example: testW1 :: WireP () Double testW1 = pure 1.0 testW2 :: WireP () Double testW2 = 1.0 main = do let (res, _) = stepWire 1.0 () testW putStrLn $ show res (set testW to testW1 or testW2). When I test this with testW=testW2 I see that "fromRational" is called which converts a Rational (=Ration Integer) to a WireP () Double (I tested this by adding a "trace" to the fromRational Control/Wire/Classes.hs). This means the "1.0" is converted to a Rational and then back to a WireP () Double, correct?
Michael Snoyman has reported that Netwire 4 compiled fine using GHCJS. Give that one a try.
I currently can not get ghcjs to work, but I will continue trying. Regards, Nathan