It will be in GHC 7.6.1 and the extension is '-XDelayErrors'.
http://hackage.haskell.org/trac/ghc/ticket/5624 http://hackage.haskell.org/trac/ghc/wiki/DeferErrorsToRuntim...
It will be in GHC 7.6.1 and the extension is '-XDelayErrors'.
http://hackage.haskell.org/trac/ghc/ticket/5624 http://hackage.haskell.org/trac/ghc/wiki/DeferErrorsToRuntim...