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Re^5: What operator should perl5porters use for safe dereferencing?by BrowserUk (Pope)
|on Jun 25, 2012 at 19:07 UTC||Need Help??|
Your theory about skimming it seems to be dependent on the previous developer doing everything right. What if ~> was used by accident? What if it's in the wrong place of the expression?
I do not believe so.
In every accidental mis-usage scenario I can imagine, if the reference is undef, the result of the dereference expression will be undef, and so will trigger an undefined value warning the first time it is used.
Of course, the first usage my be remote from its generation, but tracing undefs back to their source is a common enough procedure in Perl now, and is hardly rocket science. I do not see the shape of the operator being a major factor either way.
I think the only way I can counter your premise, is to respond to example usage in-situ. And producing examples realistic enough to form the basis of serious discussion is very difficult.
You inevitably end up arguing about the validity of the example, rather than the merits of the case being presented.
In the end, I can only express my opinion along with everyone else's and counter what I see as bad arguments, in the hope of influencing those making the decision. Assuming it hasn't already been made.
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