Re: Prototypes and hand-written MMD

Don't forget that closures created by using & prototypes can be dangerous. They leak memory under certain patterns of usage, and can generally be a PITA to debug.

Honestly, anything you could do in the past with the & prototype can probably be done cleaner and without closure-leakage issues using Source Filters (see perldoc perlfilter). The only reason to avoid that route is if you need to support pre-5.8 perls without installing optional modules or something.

Comment on Re: Prototypes and hand-written MMD

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Re^2: Prototypes and hand-written MMD by ysth (Canon) on Jan 11, 2006 at 19:14 UTC
Do you have any references to information on this leak?	[reply]
Re^3: Prototypes and hand-written MMD by xdg (Monsignor) on Jan 11, 2006 at 20:20 UTC
I seem to recall that Error was prone to this under some older versions of Perl. perrin wrote about it in Re: Re2: Learning how to use the Error module by example. -xdg Code written by xdg and posted on PerlMonks is public domain. It is provided as is with no warranties, express or implied, of any kind. Posted code may not have been tested. Use of posted code is at your own risk.	[reply]
Re^4: Prototypes and hand-written MMD by ysth (Canon) on Jan 11, 2006 at 20:47 UTC
I'm seeing the code given there leak on 5.6.2 and 5.8.0, but not 5.8.1 and on.	[reply]
Re^5: Prototypes and hand-written MMD by dragonchild (Archbishop) on Jan 12, 2006 at 00:41 UTC
Re^5: Prototypes and hand-written MMD by BrowserUk (Patriarch) on Jan 12, 2006 at 00:01 UTC
Re^6: Prototypes and hand-written MMD by ysth (Canon) on Jan 12, 2006 at 00:22 UTC
Re^2: Prototypes and hand-written MMD by diotalevi (Canon) on Jan 11, 2006 at 20:29 UTC
Or you're sane and avoid source filters. Source filters are for plague bearers, silly! ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply]


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