Warning suppression pragmas

[Simon Peyton Jones]

What is $warning_names$??

From: ghc-devs [mailto:ghc-devs-bounces at haskell.org] On Behalf Of ????? ??????????
Sent: 26 October 2015 14:53
To: Richard Eisenberg
Cc: ghc-devs at haskell.org
Subject: Re: Warning suppression pragmas

Hello Richard!

Can you take a look at some sort of specification i wrote week ago?
I placed it here: https://ghc.haskell.org/trac/ghc/wiki/Design/LocalWarningPragmas
I can imagine only two use cases, and i'm not sure about correcteness of it

---
С уважением,
Жаворонков Эдгар

Best regards,
Edgar A. Zhavoronkov

2015-10-20 1:44 GMT+03:00 Эдгар Жаворонков <edzhavoronkov at gmail.com<mailto:edzhavoronkov at gmail.com>>:
Oh, okay, sure

---
С уважением,
Жаворонков Эдгар

Yours sincerely,
Zhavornkov Edgar

2015-10-20 1:37 GMT+03:00 Richard Eisenberg <eir at cis.upenn.edu<mailto:eir at cis.upenn.edu>>:
Sure. But before thinking about implementation, let's think about specification. Write a wiki page (perhaps https://ghc.haskell.org/trac/ghc/wiki/Design/LocalWarningPragmas ) with the design of how the feature should work, with several examples. Once we know what we're building, then we can talk about how to build it.

Thanks!
Richard

On Oct 19, 2015, at 6:21 PM, Эдгар Жаворонков <edzhavoronkov at gmail.com<mailto:edzhavoronkov at gmail.com>> wrote:


Hello, Richard,

Do you know something about defining own pragmas in GHC?

---

С уважением,
Жаворонков Эдгар

2015-10-20 1:17 GMT+03:00 Richard Eisenberg <eir at cis.upenn.edu<mailto:eir at cis.upenn.edu>>:
Hi Edgar,

No, that doesn't exist yet. Would surely be useful, though.

Richard

On Oct 19, 2015, at 6:16 PM, Эдгар Жаворонков <edzhavoronkov at gmail.com<mailto:edzhavoronkov at gmail.com>> wrote:


No, i mean exactly pragmas in source code, that i can particulary add to function or a part of the code for example.
E.g:

{-# BEGIN_SUPPRESS_WARNINGS #-}

foo :: a -> b
#do something that throws warnings

{-# END_SUPPRESS_WARNINGS #-}



2015-10-20 1:10 GMT+03:00 Richard Eisenberg <eir at cis.upenn.edu<mailto:eir at cis.upenn.edu>>:
I just responded to #602, but perhaps you're just looking for the -fno-warn-XXX options listed here: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/flag-reference.html#idp14879296<https://na01.safelinks.protection.outlook.com/?url=https:%2f%2fdownloads.haskell.org%2f~ghc%2flatest%2fdocs%2fhtml%2fusers_guide%2fflag-reference.html%23idp14879296&data=01%7C01%7Csimonpj%40064d.mgd.microsoft.com%7C60e346caf8234d98e51008d2de151984%7C72f988bf86f141af91ab2d7cd011db47%7C1&sdata=%2bBLz9NmZL6LVrVIlnfbLUUSiinyks0%2f5UV%2bzLK1%2biQI%3d>

Richard

On Oct 19, 2015, at 5:22 PM, Эдгар Жаворонков <edzhavoronkov at gmail.com<mailto:edzhavoronkov at gmail.com>> wrote:

Hi everyone!

Do you know, if there is pragma for warning suppression? I want to implement something like warning suppression related to this ticket in GHC's Trac (https://ghc.haskell.org/trac/ghc/ticket/602). Or i need to implement that kind of pragma by myself?

Thanks in advance!
Edgar
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