[Haskell-cafe] Build regressions due to GHC 7.6

Alexander Bernauer alex-haskell at copton.net
Thu Aug 30 15:34:50 CEST 2012


I agree that automatic code migration can solve this issue in large
parts. The Python folks have done this to mitigate the transition from
version 2 to version 3 [1].

On Thu, Aug 30, 2012 at 03:03:05PM +0200, Alexander Kjeldaas wrote:
> perl -ni -e 'print unless /import Prelude hiding \(catch\)/' $(git grep
> 'import Prelude hiding (catch)')
I don't think regular expressions are powerful enough. This example
does not match on hiding multiple names, for instance.

But writing proper 'HsModule -> HsModule' functions should be doable.

And when each release comes with a bunch of such functions, packages
could be automatically migrated.



[1] http://docs.python.org/library/2to3.html
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