If you want to keep my $param private in file scope - instead of switching to our - then you need a setter function in that scope closing over $param

sub set_param { $param = shift }

A generic solution for various vars could be done with PadWalker or evals.

But I'd rather not see that compiled into production code.

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re: Parameter injection for testing by LanX
in thread [Solved] Parameter injection for testing by davies

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