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I think that it would be good if this tutorial not only explained what closures are, but also the common "variable will not stay shared" gotcha. This tends to be hit in mod_perl when people use Apache::Registry and wrap what was a working program inside of a function.

If you are trying to explain what the problem is and why it is impossible to resolve properly, the example at Re (tilly) 9: Why are closures cool? may help...


In reply to Re: Lexical scoping like a fox by Anonymous Monk
in thread Lexical scoping like a fox by broquaint

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    [ambrus]: choroba: heh heh... I have such a doc bug report somewhere. fixed by now.
    [Corion]: Once upon a time I had automatic tests for checking the synopsis, but I stopped doing that because the setup was too fragile on CPAN testers for extracting code from the SYNOPSIS.
    [Corion]: Maybe I should move the extraction of the code from the SYNOPSIS section into the author tests, or something like that...
    [choroba]: Corion Sounds reasonable
    [Corion]: choroba: Yeah - I basically have the same for regenerating README and README.mkdown already, except that I do that in Makefile.PL, but I guess one or the other thing should somehow work ;)
    [ambrus]: was this bug: https://rt.cpan. org/Public/Bug/ Display.html?id= 59814

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