Yes, I posted it because I think it would be a useful idiom in general for \\&foo to mean the same as sub{\&foo} to code that does this kind of stuff.

As for its presence in this module causing farther spread that must be traced back to this module's use of it, it won't happen with this particular module. I expect it will be "statically" configured in a hash, not generated and passed in by other code (since this happens first!). The internal use to figure out what different types of values mean will all be encapsulated.

—John

In reply to Re: callback or call now? by John M. Dlugosz
in thread callback or call now? by John M. Dlugosz

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