Comparing StableNames of different type
marlowsd at gmail.com
Tue Aug 28 10:34:52 CEST 2012
On 24/08/2012 10:39, Emil Axelsson wrote:
> 2012-08-24 11:18, Emil Axelsson skrev:
>> 2012-08-24 11:08, Simon Marlow skrev:
>>> On 24/08/2012 07:39, Emil Axelsson wrote:
>>>> Are there any dangers in comparing two StableNames of different type?
>>>> stEq :: StableName a -> StableName b -> Bool
>>>> stEq a b = a == (unsafeCoerce b)
>>>> I could guard the coercion by first comparing the type representations,
>>>> but that would give me a `Typeable` constraint that would spread
>>>> throughout the code.
>>> I think that's probably OK.
>> OK, good! How about putting this function in the library so that people
>> don't have to hack it up themselves?
> Oops, I did not intend to sound suggestive :) I was more wondering if
> people think it would be a good idea. If so, I can make a proposal.
Ok, I've added it. It will be in GHC 7.8.1.
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