[Haskell-cafe] Monad.Reader 8: Haskell, the new C++
stefanor at cox.net
Thu Sep 13 21:39:52 EDT 2007
On Fri, Sep 14, 2007 at 11:05:34AM +1000, Manuel M T Chakravarty wrote:
> Just to complete transferring the discussion from the ephemeral hpaste to
> the mailing list. My response to the lack of being able to display
> normalised types was that GHC actually goes to considerable trouble to
> preserve the original (non-normalised types) for error messages and other
> output, as this usually makes these messages easier to understand (eg, you
> usually rather like String than [Char] in an error message).
That's what they always say, but IME GHC's unpredictable mixing of
expanded and unexpanded form is more confusing than a straight
macro-expansion would be. What are the motivating examples (ideally I'd
like a mailing list thread or paper citation)?
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