[Hackage] #155: show . readPackageDescription /= id
Hackage
trac at galois.com
Tue Sep 25 15:31:14 EDT 2007
#155: show . readPackageDescription /= id
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Reporter: kolmodin at dtek.chalmers.se | Owner: nominolo
Type: defect | Status: assigned
Priority: normal | Milestone:
Component: Cabal | Version: HEAD
Severity: normal | Resolution:
Keywords: | Difficulty: normal
Ghcversion: 6.6 | Platform: Linux
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Changes (by nominolo):
* status: new => assigned
Comment:
Well, first of all, we didn't have that property before. The counterpart
to {{{show}}} is {{{read}}}, not {{{readFoo}}}. We did however have the
property:
{{{
prop_idempParsePrint x = (r . s . r) x == r x
where r = readPackageDescription; s = showPackageDescription
}}}
I agree that this would be nice to have, though.
--
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/155#comment:1>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects
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