[GHC] #2982: GHCi crashes if a :def command gets a pattern-match error

[GHC]

#2982: GHCi crashes if a :def command gets a pattern-match error
---------------------------------+------------------------------------------
    Reporter:  simonpj           |        Owner:                  
        Type:  bug               |       Status:  closed          
    Priority:  normal            |    Milestone:                  
   Component:  Compiler          |      Version:  6.10.1          
    Severity:  normal            |   Resolution:  fixed           
    Keywords:                    |   Difficulty:  Unknown         
    Testcase:                    |           Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |  
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Changes (by igloo):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 Fixed in HEAD and 6.10 branch by
 {{{
 Fri Jan 30 09:19:19 GMT 2009  Simon Marlow <marlowsd at gmail.com>
   * Force the result of user-defined commands
   Ignore-this: f756d00cc062072e1945d63cfbbeb98
   so that exceptions are reported with "*** Exception" instead of as a
 panic.
 }}}

 {{{
 Prelude> :def err (\_->return $ concat $ replicate (read "\"1\"") "a")
 Prelude> :err
 *** Exception: Prelude.read: no parse
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2982#comment:1>
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