Hello,
On Fri, Mar 8, 2013 at 1:39 AM, Simon Peyton-Jones
What I would like to see is something like:****
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HsApp (HsApp (HsApp (HsVar "foldl'") (HsVar "+")) (HsLit 0)) (HsVar "xs")* ***
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We could derive ‘Show’ on everything but that would generate a LOT of new code, that would seldom be used. Also ‘Show’ doesn’t pretty-print so the result would be illegible. ****
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I’m a bit dubious. Maybe a better thing might be to improve the existing pretty-printer so it gave you the cues you are looking for?
Agreed that this is probably a better solution, although having derived `Show` instances would allow one to see exactly what data-structure was
I have a package called "pretty-show", which can convert standard `Show` instances into human-readable form, and it can also produce HTML renditions of `Show`-ed data structures. It is very useful for debugging or learning a new code base. produced at some point, which can be helpful when figuring out how some part of GHC works. -Iavor