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Using toplevel('ils) in an ocean script causes undefined variable errors

MatthewLove

I'm trying to run a load pull test using Ocean. If I set the toplevel environment to Scheme mode (ils), the script generated by ADE breaks due to scoping errors. Is there any way around this?

This is valid ocean code.

    constantPowerContours = cPwrContour(...)
    plot( constantPowerContours ?expr '( "Constant Power Contours" ) )

while this code breaks

    toplevel('ils)

    ...

    constantPowerContours = cPwrContour(...)
    plot( constantPowerContours ?expr '( "Constant Power Contours" ) )

and gives the following error on IC 6.1.6

    *Error* eval: unbound variable - myVar1

Any ideas?

Parents

  • This is because plot() in IC616 is a macro which internally calls eval (for strange historical reasons). Unfortunately because of that, it's trying to evaluate the variable in the SKILL top-level (not SKILL++/Scheme top-level). 

    You'd have to surround the plot with a call to inSkill() - however, then your variable lookup wouldn't work. 

    I'd say it's best not to use Scheme mode (ils mode) in an OCEAN script. Either way, you shouldn't really use toplevel('ils) in a script anyway - you either should give the file the ".ils" suffix, or wrap with inScheme(). You could always wrap the bits you want to be evaluated in Scheme mode that way.

    Note that in IC617, plot() is now a normal function and this no longer seems to be a problem.

    Regards,

    Andrew.

Reply

  • This is because plot() in IC616 is a macro which internally calls eval (for strange historical reasons). Unfortunately because of that, it's trying to evaluate the variable in the SKILL top-level (not SKILL++/Scheme top-level). 

    You'd have to surround the plot with a call to inSkill() - however, then your variable lookup wouldn't work. 

    I'd say it's best not to use Scheme mode (ils mode) in an OCEAN script. Either way, you shouldn't really use toplevel('ils) in a script anyway - you either should give the file the ".ils" suffix, or wrap with inScheme(). You could always wrap the bits you want to be evaluated in Scheme mode that way.

    Note that in IC617, plot() is now a normal function and this no longer seems to be a problem.

    Regards,

    Andrew.

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