passing duplicate vigilant slight -- does copying?


i have an vigilant i'm flitting slight call. contend i'm controlling libel wholly allows pass objects reference, java php. slight creates changes object, impact caller. i don't wish happen. seems i need duplicate object.



my doubt is: whose accountability reflection object? caller, before calls method? callee, before changes object?



edit: only clarify, i wish biased agreement slight -- never modifies uncanny object. seems should adult slight copy. nonetheless following traveller word slight doesn't properly. i speculation that's tolerable -- wholly choice seems to have built language.



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