[GHC] #1518: Make it possible to evaluate monadic actions when assigning record fields (<-)

[Neil Mitchell]

Hi Adde,

> #1518: Make it possible to evaluate monadic actions when assigning record fields
>
> It is currently not possible to build records from values resulting from
>  monadic actions while still using the field-specifiers.

This is quite a significant change to the language, which isn't
precise enough. Perhaps if you discussed it on the haskell-cafe@ or
haskell-prime@ mailing lists first you might be able to firm up what
you are asking for, including the desugaring rules etc. You might also
find that people have developed something to get round this.

Thanks

Neil
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