Make it possible to evaluate monadic actions when assigning record fields

Wouter Swierstra wss at Cs.Nott.AC.UK
Wed Jul 11 06:07:03 EDT 2007

On 11 Jul 2007, at 08:38, Simon Peyton-Jones wrote:

> Another alternative (which I got from Greg Morrisett) that I'm  
> toying with is this.  It's tiresome to write
>         do { x <- <stuff1>
>            ; y <- <sutff2>
>            ; f x y }
> In ML I'd write simply
>         f <stuff1> <stuff2>

Using Control.Applicative you could already write:

f <$> x <*> y

I don't see the immediate need for more syntactic sugar - this is  
about as concise as it can get and it does not require compiler  

All the best,


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