It seems like it would good to have:

package non_main;
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check the symbol table and warn if the non_main namespace exists. I mean that such a warning could be optionally turned on.

I will probably add a lint process to catch the ordinary package statements and that should serve me well enough.

But I am curious

• if anyone has achieved this effect in Perl?
• do other people see value in such a constraint?

Be well,
rir