[Haskell-cafe] Template Haskell sees into abstract data types

Brandon S Allbery KF8NH allbery at ece.cmu.edu
Sun Jul 4 00:45:06 EDT 2010


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On 7/4/10 00:29 , Ivan Lazar Miljenovic wrote:
> David Menendez <dave at zednenem.com> writes:
>> I believe the point is that Template Haskell can see the internal
>> structure of a type even when the constructors are not exported. The
>> question is whether or not that is intentional.
> 
> I was under the impression that the question was whether the hiding of
> the constructors, etc. was intentional...

No, he knew that ("abstract types" from the original message).  The question
was whether TH is supposed to be able to violate the abstraction barrier.

- -- 
brandon s. allbery     [linux,solaris,freebsd,perl]      allbery at kf8nh.com
system administrator  [openafs,heimdal,too many hats]  allbery at ece.cmu.edu
electrical and computer engineering, carnegie mellon university      KF8NH
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