Show instance for SrcSpan

[Alan & Kim Zimmerman]

Not at all, just show as e.g.

  SrcSpan (RealSrcSpan (SrcSpanOneLine "./foo.hs" 4 1 6))

We just avoid showing the srcSpanFile / srcSpanLine / srcSpanSCol /
srcSpanECol noise


On Mon, Oct 6, 2014 at 3:16 PM, Matthias Fischmann <mf at zerobuzz.net> wrote:

> On Mon, Oct 06, 2014 at 02:59:03PM +0200, Alan & Kim Zimmerman wrote:
> > Date: Mon, 6 Oct 2014 14:59:03 +0200
> > From: Alan & Kim Zimmerman <alan.zimm at gmail.com>
> > To: "ghc-devs at haskell.org" <ghc-devs at haskell.org>
> > Subject: Show instance for SrcSpan
> >
> > Is there any reason I can't put in a diff request to replace the derived
> > Show instance for SrcSpan with a handcrafted one that does not
> exhausively
> > list the constructors, making it more readable?
> >
> > Alan
>
>
> I like the notion that `Read . Show` should always work.  Dropping
> parts of a datatype would break that rule.
>
> matthias
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