[GHC] #2798: Enable "rec" keyword when RecursiveDo is enabled?

[Simon Peyton-Jones]

Doesn't mdo still work?  With -XRecursiveDo?  It's deprecated, but works fine I think. The whole deprecated thing is to allow old programs to continue to work.

Simon

| -----Original Message-----
| From: glasgow-haskell-bugs-bounces at haskell.org [mailto:glasgow-haskell-bugs-
| bounces at haskell.org] On Behalf Of Iavor Diatchki
| Sent: 04 January 2010 03:37
| To: glasgow-haskell-bugs at haskell.org
| Subject: Re: [GHC] #2798: Enable "rec" keyword when RecursiveDo is enabled?
| 
| Hello,
| so with these changes, what is the preferred way to write recursive
| monadic code that will work on GHC < 6.12.1, GHC >= 6.12.1, and Hugs?
| I guess, one could always fall back to just using "mfix" directly but
| this seems unfortunate.
| -Iavor
| 
| 
| 
| On Sun, Jan 3, 2010 at 5:23 AM, GHC <trac at galois.com> wrote:
| > #2798: Enable "rec" keyword when RecursiveDo is enabled?
| > ---------------------------+------------------------------------------------
| >  Reporter:  nominolo      |          Owner:  igloo
| >      Type:  task          |         Status:  closed
| >  Priority:  high          |      Milestone:  6.14.1
| >  Component:  Compiler      |        Version:  6.11
| > Resolution:  fixed         |       Keywords:
| > Difficulty:  Unknown       |             Os:  Unknown/Multiple
| >  Testcase:                |   Architecture:  Unknown/Multiple
| >   Failure:  None/Unknown  |
| > ---------------------------+------------------------------------------------
| > Changes (by igloo):
| >
| >  * status:  new => closed
| >  * failure:  => None/Unknown
| >  * resolution:  => fixed
| >
| > Comment:
| >
| >  It was done for 6.12.1 after all. `RecursiveDo` is deprecated in favour of
| >  `DoRec`.
| >
| > --
| > Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2798#comment:13>
| > GHC <http://www.haskell.org/ghc/>
| > The Glasgow Haskell Compiler
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| >
| >
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