[Haskell-cafe] GHC Extension Proposal: ArgumentBlock

David Kraeutmann kane at kane.cx
Sun Sep 6 13:03:20 UTC 2015

It's not something that belongs in an extension. Rather, it should be
in the main language.

Let's say you want to write f (\x -> x) (\y -> y) and forget the parentheses.

How would you parse the following under ArgumentBlock:
f \x -> x \y -> y?

On Sun, Sep 6, 2015 at 2:45 PM, Tom Ellis
<tom-lists-haskell-cafe-2013 at jaguarpaw.co.uk> wrote:
> On Sun, Sep 06, 2015 at 12:34:55PM +0000, Oliver Charles wrote:
>> People saying "it just saves a character" seems to have completely missed
>> my point and source code readability/refactoring options from a tool's
>> perspective. It does more than save a character.
> Let's look at it from the opposite direction.  If "ArgumentBlock" were
> already the default then we could remove complexity from the grammar for the
> cost of a single character.  That sounds like a great tradeoff to me, and is
> the reason I can't support ArgumentBlock.
> Tom
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