[Haskell-cafe] hflags

[Claude Heiland-Allen]

On 06/02/15 06:26, Maurizio Vitale wrote:
> with ghc 7.8.4 and hflags 0.4 the following program:
>
> {-# LANGUAGE TemplateHaskell #-}
>
> module Main where
>
> import HFlags
>
> defineFlag "f" True "A flag."
> --defineFlag "g" True "Another  flag."

return []

-- see 
http://hackage.haskell.org/package/QuickCheck-2.7.6/docs/Test-QuickCheck-All.html#v:quickCheckAll 
- I haven't tested with hflags but it looks like the same issue from 
first glance

>
> main = do
>    _ <- $initHFlags "flags demo"
>    print Main.flags_f
>
> gives me a runtime error about the flag f not being found, unless I add the
> declaration of a second flag. It seems like the last flag definition is not
> seen.
>
> Any idea/suggestion?
>
> Thanks,
>
>    Maurizio


Claude
-- 
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