#2394: deriving instance Data (a->b) leads to 'impossible' error instead of
"can't
do" message
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Reporter: claus | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 6.9
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Unknown
Testcase: deriving/should_fail/T2394 | Architecture: Unknown
Os: Unknown |
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Changes (by simonpj):
* testcase: => deriving/should_fail/T2394
* difficulty: => Unknown
* status: new => closed
* resolution: => fixed
Comment:
Yes, this should fail gracefully, thanks. Fixed by
{{{
Wed Jun 25 17:02:04 BST 2008 [EMAIL PROTECTED]
* Fix Trac #2394: test for non-algebraic types in standalone deriving
}}}
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2394#comment:1>
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