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Multilevel data structure, what to pass to functions?

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  Multilevel data structure, what to pass to functions? Victor Porton <porton@narod.ru> - 2014-04-19 17:35 +0300

#4250 — Multilevel data structure, what to pass to functions?

The task is to generate a data structure to be passed for further 
processing.

I have a multilevel hash/array. It is modified by some functions (which I am 
now rewriting). Should I pass the top level hash to the function or just 
that part which is to be modified?

An other variant: $x{a}{b} = myFunction(...);

An argument to pass the whole structure is that this does not require to 
change function calls if in the future we decide to modify more in a 
particular function.

An argument to pass only a modified portion is that we can pass a portion 
which is not yet assigned to a key (and even whose parent may be not 
assigned to a key) in the entire data structure.

More arguments, ideas?

-- 
Victor Porton - http://portonvictor.org

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