Additionally, tools based on the GHC API already have this information
available and wouldn't be affected either way.
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Push the envelope. Watch it bend.
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On Mon, Jan 11, 2010 at 10:10:03AM +, Simon Marlow wrote:
don't think I've ever wanted to know the endpoint of the expression to
which an error message refers,
Here's an example where it is useful (arguably due to a poor error
message):
http://hackage.haskell.org/trac/ghc/ticket/3746
On 06/01/10 11:35, Ian Lynagh wrote:
Currently, when GHC reports an error it only gives a source position,
not a source span. For example, with this module:
main = print (f (const 'x' 'x') 'y')
f xs y = xs ++ [y]
you get an error starting:
u.hs:1:18:
Couldn't match
On Wed, Jan 06, 2010 at 09:01:46PM -0800, Alexander Dunlap wrote:
On Wed, Jan 6, 2010 at 3:35 AM, Ian Lynagh ig...@earth.li wrote:
Would you find the extra information useful, or just noise?
i.e. should we show error spans by default?
I certainly wouldn't find it distracting, and I
Would you find the extra information useful, or just noise?
i.e. should we show error spans by default?
I certainly wouldn't find it distracting, and I think it could be
quite useful in many cases. I vote for turning it on by default.
I agree.
+1.
It is a feature I have always found useful
Hi all,
Currently, when GHC reports an error it only gives a source position,
not a source span. For example, with this module:
main = print (f (const 'x' 'x') 'y')
f xs y = xs ++ [y]
you get an error starting:
u.hs:1:18:
Couldn't match expected type `[a]' against inferred
Hello Ian,
Wednesday, January 6, 2010, 2:35:09 PM, you wrote:
Would you find the extra information useful, or just noise?
i.e. should we show error spans by default?
i think it's useful in some cases, and don't add noticeable visual
overhead in remaining ones
--
Best regards,
Bulat
On Wed, Jan 6, 2010 at 3:35 AM, Ian Lynagh ig...@earth.li wrote:
Hi all,
Currently, when GHC reports an error it only gives a source position,
not a source span. For example, with this module:
main = print (f (const 'x' 'x') 'y')
f xs y = xs ++ [y]
you get an error starting:
