[Haskell-cafe] Shrink function names

[David Feuer]

You can still turn off Typeable deriving altogether, I believe. That'll
only cause trouble if you're using Typeable.

On Sun, Sep 19, 2021, 11:24 AM Brandon Allbery <allbery.b at gmail.com> wrote:

> Hm. Then I bet that's the implicit Typeable derivation and there's nothing
> to be done about it because it's used internally.
>
> On Sun, Sep 19, 2021 at 10:58 AM Viktor Dukhovni <ietf-dane at dukhovni.org>
> wrote:
>
>> On Sun, Sep 19, 2021 at 07:58:22AM -0400, Brandon Allbery wrote:
>>
>> > On Sun, Sep 19, 2021 at 3:02 AM Viktor Dukhovni <ietf-dane at dukhovni.org
>> >
>> > wrote:
>> >
>> > > I don't know how to suppress unexported constructor names appearing
>> in the
>> > > compiled code, perhaps someone else does, or it might not be
>> possible...
>> >
>> > I would ask if there's a "deriving Show" involved.
>>
>> My test code does not.
>>
>>     $ rm foo.o foo.hi
>>     $ ghc -fhide-source-paths -dno-typeable-binds
>> -dsuppress-type-signatures -optl-s -O2 foo.hs
>>     [1 of 1] Compiling Main
>>     Linking foo ...
>>     $ strings -a foo | grep -i secret
>>     main:Main.AnotherSecret
>>
>>     $ cat foo.hs
>>     module Main (main) where
>>
>>     import System.Environment
>>     import Data.Maybe
>>
>>     data SecretName = AnotherSecret String Int
>>
>>     secretName :: [String] -> Maybe SecretName
>>     secretName = fmap (AnotherSecret <$> id <*> (+ 42) . read) .
>> listToMaybe
>>     {-# NOINLINE secretName #-}
>>
>>     main :: IO ()
>>     main = secretName <$> getArgs >>= mapM_ (\ (AnotherSecret a b) ->
>> print (a, b))
>>
>> With a deriving (Show) instance, I see a second occurence:
>>
>>     main:Main.AnotherSecret
>>     AnotherSecret
>>
>> --
>>     Viktor.
>> _______________________________________________
>> Haskell-Cafe mailing list
>> To (un)subscribe, modify options or view archives go to:
>> http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
>> Only members subscribed via the mailman list are allowed to post.
>
>
>
> --
> brandon s allbery kf8nh
> allbery.b at gmail.com
> _______________________________________________
> Haskell-Cafe mailing list
> To (un)subscribe, modify options or view archives go to:
> http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe
> Only members subscribed via the mailman list are allowed to post.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.haskell.org/pipermail/haskell-cafe/attachments/20210919/dea9ed24/attachment.html>