Could you get away with the following? 

{
    my $shared_data;
    my $inner_sub;

    sub outer_sub {
        ...
        ... $inner_sub->(...) ...
        ...
    }

    $inner_sub = sub { ... $shared_data ... };
}

[download]

That would get rid of the bug. (A named sub inside another sub in Perl is a bug in my eyes. The warning is too gentle.)

Note that having any $shared_data makes the function non-reentrant, but you can eliminate that problem by sharing data via parameters.

Update: no warnings 'closure'; with a comment explaining that all shared variables need to be exchanged by parameters or globals would also do the trick. But you're eliminating a very useful check.

In reply to Re^5: nested routines, anonymous routines and location dependency by ikegami
in thread nested routines, anonymous routines and location dependency by Anonymous Monk

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