in reply to Re^2: How to access a variable inside subroutine?
in thread How to access a variable inside subroutine?

Side note: be careful doing this with a my variable because some weird things can happen with nested subs referencing lexicals from the enclosing scope. Look for Variable "%s" will not stay shared in perldiag.

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Re^4: How to access a variable inside subroutine?
by LanX (Saint) on Sep 06, 2020 at 05:55 UTC
    I wanted to give the same warning and I'm not sure this is less of a problem with state

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

[reply]

      It isn't a problem with state.

      It's only a problem with my because a new SV is allocated for each call of the outer sub, but the inner sub only closed over the first one.

      toby döt ink
[reply]
[d/l]
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        In this case maybe, I'm sure one can also produce such problems with state.

        A named subroutine is created at compile time, putting them into other subs or loops means begging for trouble.

        I've never been a big fan of state, there are not many patterns (if any) which can't be implemented with closed over my declarations.

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

[reply]

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