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@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@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@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@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

Richard

On Oct 19, 2015, at 5:22 PM, Эдгар Жаворонков <edzhavoronkov@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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