[Haskell-cafe] Bug in HLint or haskell-src-exts?

[Niklas Broberg]

Hi Martin,

both of your problems are due to known deficiencies in
haskell-src-exts, and I'm working on solving them. The first comes
from its subpar handling of newtype deriving for MPTCs, the second
from a weird case where you (currently) need spaces around -, i.e. in
your example write (x - y) and HLint/haskell-src-exts will accept it.

Thanks for reporting,

/Niklas

ps. I really ought to get myself a bug tracker...


On Thu, Feb 26, 2009 at 10:49 PM, Martin Huschenbett <huschi at gmx.org> wrote:
> Hello again,
>
> I found another problem I dont understand:
>
>
> evalOp :: Op -> (Integer -> Integer -> Integer)
> evalOp op = case op of
>  Plus  -> (+)
>  Minus -> \x y -> max 0 (x-y)
>  Times -> (*)
>
>
> brings a parse error, too:
>
>
> Interpreter.hs:92:3: Parse failure, Parse error in expression: DVar [Ident
> "x",Ident "...
>
>
>
> The mentioned position is the "T" of "Times" in the last line.
>
> Regards,
>
> Martin.
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