And I did it myself, as it was about adding one single line rule: https://github.com/ndmitchell/hlint/pull/115 <https://github.com/ndmitchell/hlint/pull/115> Let’s see what Neil thinks about :) - Oleg
On 24 Feb 2015, at 12:28, Oleg Grenrus <oleg.grenrus@iki.fi> wrote:
On 24 Feb 2015, at 12:23, Erik de Castro Lopo <mle+hs@mega-nerd.com <mailto:mle+hs@mega-nerd.com>> wrote:
Possibly what we need is a pragma to mark functions partial and a warning flag that warns on usage of functions that have been marked partial.
I had this in mind too, but that is very heavy solution. I’d rather start with making hlint warnings?
foo :: Maybe Int -> Int foo x = if isJust x then fromJust x else 0
bar :: Maybe Int -> Int bar x = 1 + fromJust x
It warns about `foo` nonsense. It could propose to change `bar` part into `fromMaybe (error “I’know what I’m doing”) x` ?
- Oleg
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