PAR::Fi...Bytecode(3)

📦
version 1.064 · 13 versions
, in alpine 3.24

💅 PAR::Fi...Bytecode(3) — like, the whole vibe

okay so this is the PAR::Filter::Bytecode page from the User Contributed Perl Documentation, section 3, bestie. Strap in, because this one is a journey and also a little bit of a cautionary tale. 🎀

🌸 NAME 🌸

PAR::Filter::Bytecode — the Bytecode filter. that's it, that's the name, she's simple, she's iconic.

✨ SYNOPSIS ✨

PAR::Filter::Bytecode->apply(\$code); # transforms $code

literally it just takes your $code and transforms it. slay. 💅

🦋 DESCRIPTION 🦋

okay babes, first thing's first and it's giving bad news: this filter is deprecated. 😭

the B::Bytecode code has been removed from the newest development series of perl and will not be included in perl 5.10 any more. like, gone-gone. so if you're here because you wanted to hide your sources, please go have a look at Steve Hay's PAR::Filter::Crypto module instead — that's the glow-up you're looking for. 🫶

for the history girlies though: this filter uses B::Bytecode to turn the script into comment-free, architecture-specific Perl bytecode, and then uses ByteLoader to load back on execution. cute concept, honestly. ✨

and if you're a pp user, listen up, because this part is important: please add an extra -M option, like this:

pp -f Bytecode -M ByteLoader

because otherwise? the implicit dependency on ByteLoader will not be detected. and then nothing works and you'll be sad. don't be sad. add the flag. 💖

💀 CAVEATS 💀

right, so, deep breath. 🫁

  • this backend exhibits all bugs listed in B::Bytecode, and then some. not just the regular bugs. extra bugs. overachiever behavior but make it tragic.
  • bytecode support is considered to be extremely fragile on Perl versions earlier than 5.8.1, and is still far from robust (as of this writing). like, hold her gently. 🙈
  • and the big one: bytecode is not supported by perl 5.9 and later. periodt. 💀
ngl bestie, if your perl is 5.9 or newer, this whole thing is a no. not a "maybe", not a "with a workaround", just a no. 🙅‍♀️

🔥 SEE ALSO 🔥

  • PAR::Filter
  • B::Bytecode
  • ByteLoader
  • Filter::Crypto
  • PAR::Filter::Crypto

go read those, they're the supporting cast and honestly some of them are the main characters now. 👑

👑 AUTHORS 👑

Audrey Tang <cpan@audreyt.org> — icon, legend, the moment. 🌟

you can write to the mailing list at <par@perl.org>, or send an empty mail to <par-subscribe@perl.org> to participate in the discussion. yes, empty mail. it's a whole thing, just trust the process. 📬

archives of the mailing list are available at <https://www.mail-archive.com/par@perl.org/> or <https://groups.google.com/g/perl.par> — perfect for when you want to scroll ancient lore at 2am. 🌙

please submit bug reports to <https://github.com/rschupp/PAR-Packer/issues> — and be nice about it, the maintainers are people too. 🫶

Copyright 2003-2009 by Audrey Tang <cpan@audreyt.org>.

this program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. 💖

See LICENSE.

and that's the whole page, bestie! 🌈 no cap, you read all of it. this lil writeup came from perl v5.42.3 and was dated 2026-11-03 — so go forth, don't use deprecated bytecode filters, and hydrate. 💜🦋⭐

📦 where this page comes from