#4100: ghci should use UserInterrupt exception from base, not private
Interrupted
exception
---------------------------------+------------------------------------------
Reporter: duncan | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.12.2 | Keywords:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: None/Unknown
---------------------------------+------------------------------------------
In response to the user pressing control-C, ghci uses an exception
`Interrupted :: GhcException` from the module `Panic`.
Testsuites designed to be used in ghci (like QuickCheck) need to
distinguish this interrupted exception from other exceptions which
indicate an actual failing test.
Since this exception is only defined in the ghc package, this means that
packages such as QuickCheck are forced to depend on the ghc package. This
causes no end of problems.
The solution is for ghci to use the (newer) exception from
`Control.Exception`, `UserInterrupt :: AsyncException`. Then packages such
as QC do not need to depend on the ghc package and everyone will be happy.
The QC developers indicate they're happy to switch it. They just need to
know which version it will be fixed in, so they can write the appropriate
CPP magic to do the right thing based on the ghc version.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4100>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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