[Haskell-cafe] Proposal: Non-recursive let
ekmett at gmail.com
Thu Jul 11 11:25:46 CEST 2013
On Wed, Jul 10, 2013 at 3:47 AM, <oleg at okmij.org> wrote:
> Jon Fairbairn wrote:
> > It just changes forgetting to use different variable names because of
> > recursion (which is currently uniform throughout the language) to
> > forgetting to use non recursive let instead of let.
> Let me bring to the record the message I just wrote on Haskell-cafe
> and repeat the example:
> In OCaml, I can (and often do) write
> let (x,s) = foo 1  in
> let (y,s) = bar x s in
> let (z,s) = baz x y s in ...
> In Haskell I'll have to uniquely number the s's:
> let (x,s1) = foo 1  in
> let (y,s2) = bar x s1 in
> let (z,s3) = baz x y s2 in ...
> and re-number them if I insert a new statement.
blah = case foo 1  of
(x, s) -> case bar x s of
(y, s) -> case baz x y s of
(z, s) -> ...
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Haskell-Cafe