On Wed, 1 Sep 2010, Eric Kow wrote:
On Tue, Aug 31, 2010 at 17:22:31 -0600, Zooko O'Whielacronx wrote:
zo...@tahoe-lafs:~/playground/darcs/bench$ darcs-benchmark run -v
--converge darcs-2.4.4 darcs-2.4.98.3+175
WARNING: Could read /home/zooko/.darcs-benchmark/tahoe-lafs.org-warm.info
darcs-benchmark: user error (Pattern match failure in do expression at
source/Benchmark.hs:178:7-21)
Argh, sorry about that! I had tried it, just not using the same
version of Darcs as you did
I'll note that this is looks like a standard pattern-match failure that
you'd check type checking for, but when we pattern match out of an
action, we don't get GHC reminding us that this there are missing cases
(ie. ones where splitOn returns not exactly 2 results).
[info, context] <- splitOn "Context:\n\n" `fmap` darcsMeta cmd
["--exact-version"]
The problem (for GHC) is that pattern match failure here isn't necessarily
a runtime error, as it depends on the monad being used.
Ganesh
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