usage of "this"

Alex Rice alex at
Thu Oct 31 04:46:01 EST 2002

I was just hunting down this bug in my program, and it seems 
counterintuitive what I discovered. In this code, the value of "this 
stack" changes even before the handler finishes! That's surprising for 
some reason. I don't know why I though "this" was consistend through a 
handler. What other handlers or functions in rev can cause "this" to 
change like this?

if tCalcType is not empty then
     go to first card of stack tCalcType as toplevel
     -- close the the current... the stack we were just in.
     -- close this stack -- nope; "this stack" has now changed!
     close stack "FacilityCalculator"
end if

Alex Rice, Software Developer
Architectural Research Consultants, Inc.
alrice at
alex_rice at

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