Re: scope of variables

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  • Posted by jeremy (admin) Dec 30, 2010
  • 2891 views
jaygade said...

Consistent with what? Procedures and functions are self-contained pieces of code. By enabling variables to be defined with in certain other blocks, those blocks also become self-contained pieces of code. One thing is like the other. Consistent. The only other way to make it consistent is to remove the ability to define variables in a block at all.

Maybe my original example was unclear. Here is another of what I consider to be the proper solution 

integer file_log_level = log:WARNING 
 
procedure abc() 
    integer abc = 20 -- VALID 
    integer file_log_level = log:ERROR -- INVALID 
    if 10 then 
        integer def -- VALID 
        integer abc -- INVALID 
    end if 
end procedure

i.e. redefinition of any variable in any child scope is invalid. This is consistent and good practice. There is no reason to redefine file_log_level inside of a procedure or any child scope.

Jeremy

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