Proposal: Add (<$>) to Prelude as part of the AMP in GHC 7.10-RC3

Bardur Arantsson spam at scientician.net
Tue Feb 24 16:37:10 UTC 2015


On 24-02-2015 16:39, Edward Kmett wrote:
> We have a couple of weeks until the third release candidate for GHC 7.10
> goes out the door.
> 
> Along the way with the last couple of release candidates folks have found
> some problems with the way we implemented the AMP. [1][2]
> 
> Most notably, we failed to include (<$>) in the Prelude, so the standard
> idiom of
> 
> foo <$> bar <*> baz <*> quux
> 
> doesn't work out of the box!
> 
> I'd like to include (<$>) in the Prelude in RC3.
> 

+1 on (<$>)
0 on (<$)

... but I must say that I've never actually seen the later in any code
I've inspected. (But then I'm usually not looking at that much
high-level applicative code, code, so...)

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> 




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