[Haskell-cafe] GHC Extension Proposal: ArgumentBlock

Andrew Gibiansky andrew.gibiansky at gmail.com
Tue Sep 8 02:17:54 UTC 2015

Very little changes. You can look at the changes to Parser.y on the Phabricator
revision <https://phabricator.haskell.org/D1219#72873ca7>. In order to get
this parsing sans any shift/reduce conflicts you have to introduce fexp2 as
well as fexp, which makes it so that dollar-less lambdas/do blocks can only
be applied as the last argument.

-- Andrew

On Mon, Sep 7, 2015 at 6:39 PM, Edward Kmett <ekmett at gmail.com> wrote:

> Reserving judgment on the merits of the proposal, I would be curious to
> see the net impact of such a change on the grammar that GHC parses. How
> much changes?
> -Edward
> On Mon, Sep 7, 2015 at 9:15 PM, Mike Meyer <mwm at mired.org> wrote:
>> On Mon, Sep 7, 2015 at 8:08 PM Dan Burton <danburton.email at gmail.com>
>> wrote:
>>> +1 people who like it can use it and people who don't like it don't have
>>> to use it.
>> Yes, but they still have to be able to read code that uses it, deal with
>> it in coding standards, deal with how it affects their tool chain, and
>> otherwise have it affect them.
>> "If you don't like it, don't use it" is a bogus argument, and should be
>> shot on sight.
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