patch applied (cabal): Improve style and performance of
duncan.coutts at worc.ox.ac.uk
Tue May 6 20:21:58 EDT 2008
Tue May 6 16:44:47 PDT 2008 Duncan Coutts <duncan at haskell.org>
* Improve style and performance of PackageIndex.dependencyClosure
Keep the completed set as another PackageIndex rather than a list.
We want to return an index at the end anyway and in the mean time
we want to do lots of lookups to see if we've visited previously.
M ./Distribution/Simple/PackageIndex.hs -12 +10
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