[ ghc-Bugs-413656 ] System.exitWith terminates GHCi

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Bugs item #413656, was updated on 2001-04-04 01:28
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Category: Compiler
>Group: 5.00
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Manuel M. T. Chakravarty (chak)
>Assigned to: Simon Marlow (simonmar)
Summary: System.exitWith terminates GHCi

Initial Comment:
Loading package std ... linking ... done.
Prelude> System.exitWith System.ExitSuccess
FateAmenableToChange chak 448 (~): 

Not suprising, but annoying when running a program
interactively that happens to terminate nicely using
System.exitWith.


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>Comment By: Simon Marlow (simonmar)
Date: 2001-05-23 03:33

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Fixed in 5.01 (will be in 5.02 release).

System.exitWith now raises an exception, System.getArgs 
return [], and System.getProgName returns "<interactive>" 
under GHCi.

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Comment By: Manuel M. T. Chakravarty (chak)
Date: 2001-04-04 23:17

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Yep, using an exceptions sounds like a good idea.  (And the
place where `getArgs' and `getProgName' get their values has
to be fixed.)


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Comment By: Simon Marlow (simonmar)
Date: 2001-04-04 01:55

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Yes, we know about this one.  Probably the right fix is for 
System.exitWith to raise an exception, for which we need a 
new constructor in the Exception type.  How does that 
sound?  It won't be fixed for 5.00, though.

Also, pressing ^C at the GHCi prompt causes strange things 
to happen.

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Comment By: Manuel M. T. Chakravarty (chak)
Date: 2001-04-04 01:41

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Similarily, `getArgs' and `getProgName' should behave
differently in an interactive session and the interpreter
should allow to set the values returned by these two
routines.  So, I guess, a special version of System for
interactive use is needed.

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