[Haskell-cafe] blaze-builder and FlexibleInstances in code that aims to become part of the Haskell platform

Antoine Latter aslatter at gmail.com
Thu May 19 14:03:07 CEST 2011

On May 19, 2011 4:57 AM, "Henk-Jan van Tuyl" <hjgtuyl at chello.nl> wrote:
> On Wed, 18 May 2011 23:21:27 +0200, Antoine Latter <aslatter at gmail.com>
>> I don't have a problem with these extensions being in the Haskell
>> Platform, as the platform currently only targets GHC, but the
>> bytestring package itself might have a higher standard of portability.
> So you want the packages that use extensions thrown out, as soon as
another Haskell compiler becomes popular? As one of the targets of the
Haskell Platform is stability, it is not advisable to target just one

Portability and adherence to standards is a goal worth striving for, but the
platform policy stated on the wiki is that packages in the platform should
build on all compilier targets.

I think we need to be pragmatic about what we include - for example
functional dependencies are still controversial, but that doesn't mean that
the 'mtl' package should be tossed out of the platform.

But perhaps it does mean that, for example, the 'containers' package should
be subject to a higher level of scutiny for its public API. The 'bytestring'
package might also be such a package where we prioritize portability.

I'm not active in the maintaince of the platform; perhaps I'm mis-stating
the goals and policies.

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