Re: [web-devel] [conduit 0.2.x] generalizing sourceIO?

On 02/08/2012 09:07 AM, Michael Snoyman wrote:

On Wed, Feb 8, 2012 at 9:04 AM, Michael Snoyman wrote:

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On Tue, Feb 7, 2012 at 11:18 PM, Erik de Castro Lopo wrote:

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Erik de Castro Lopo wrote:

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Would it not be possible to achieve what you want with sourceState:

http://hackage.haskell.org/packages/archive/conduit/0.2.0/doc/html/Data-Cond...

No it wouldn't, but maybe that calls for a function sourceStateIO that has all the features of sourceIO and sourceState.

That might make sense. There are definitely cases where it would be useful. I don't want to change the type of sourceIO to the suggested type, since:

1. It complicates things for the common case 2. Returning a tuple means that when we return IOClosed, we still need to return a state, even though it doesn't make sense.

This should be a fairly minor change, I think I'll throw it in soon.

How's this?

https://github.com/snoyberg/conduit/commit/7ab2a34d5baa40b7f98cec19430516152...

Michael

Looks great, thanks :).