perlをWebAssembly上で動かすと何が嬉しいの？？？ / Where does Perl-on-Wasm actually make sense?

by mackee

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perlΛWebAssembly্Ͱಈ͔ ͢ͱԿ͕خ͍͠ͷʁʁʁ macopy YAPC::Fukuoka 2025 ඇެࣜϦδΣΫτίϯ

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ຊฤͰ͸͜͏͍͏τʔΫΛ΍ͬͨऀͰ͢

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Do you know Perl??

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Do you know WebAssembly??

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WebAssembly(MDNΑΓ) • WebAssembly ͸ݱ୅ͷ΢Σϒϒϥ΢βʔͰ࣮ߦͰ͖ΔίʔυͷҰछ Ͱ͢ɻωΠςΟϒʹ͍ۙύϑΥʔϚϯεͰಈ࡞͢ΔɺίϯύΫτͳό ΠφϦʔܗࣜͷ௿ϨϕϧͳΞηϯϒϦʔ෩ݴޠͰ͢ɻ͞Βʹɺ C/ C++ɺC# ΍ Rust ͳͲͷݴޠͷίϯύΠϧઌͱͳΓɺͦΕΒͷݴޠΛ ΢Σϒ্Ͱ࣮ߦ͢Δ͜ͱ͕Ͱ͖·͢ɻ ·ͨɺJavaScript ͱฒ΂࣮ͯߦ ͢ΔΑ͏ʹઃܭ͞Ε͓ͯΓɺ྆ํΛҰॹʹಈ࡞ͤ͞Δ͜ͱ͕Ͱ͖· ͢ɻ

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ͳΔ΄Ͳͳ͋

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ͦ͏͍͑͹Perl͸

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ɹPerlɹ (ƅшƅ)ɹWebAssembly ɹɹɹʘʗ|ɹy |ʘʗ

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ɹɹPerlшƅWebAssembly ɹɹɹɹlʗ|ɹy |ʘl

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zeroperl

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zeroperlͬͯԿ • perlίϚϯυΛWebAssembly޲͚ʹίϯύΠϧͨ͠΋ͷ • github.com/6over3/zeroperl • ۩ମతʹ͸wasi-sdkΛؚΊͯϏϧυͨ͠΋ͷ • wasi-sdk͸libcΛஔ͖׵͑ͯWASM͔ΒWASIΛ࢖͑ΔΑ͏ʹͨ͠΋ ͷͰ…

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perlΛWASMͰಈ͔ͯ͠Կ͕خ͍͠ͷʁ • zeroperlͷಈػ: ExifToolΛWebͰಈ͔͍ͨ͠ • exiftool.org • ը૾ͷϝλσʔλͰ͋ΔExifΛಡΈॻ͖͢ΔϞδϡʔϧ(Perl੡) • github.com/6over3/exiftool • JavaScript͔ΒExifToolΛ࢖͑ΔΑ͏ʹ͢Δ

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1. PerlͰॻ͔Εͨࢿ࢈Λ࢖͍͍ͨ

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ͦͷଞPerlͰॻ͔Εͨ΋ͷͰWASMͰಈ͔ͨ͠ Β(ໝ૝) • pt-query-digest • ϒϥ΢β্ͰϚΠάϨʔγϣϯ͍ͨ͜͠ͱ͕͋Δ͔Ͱ͍͏ͱṖ • ΤοδͳΒ༗༻͔ʁ͏ʔΜͲ͏ͩΖ͏ • όΠΦܥͩͱPerlͷίʔυͷࢿ࢈͕͋ΔΒ͍͠

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2. ΤοδͰಈ͔͍ͨ͠

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WASMϕʔεͷΤοδίϯϐϡʔςΟϯά؀ڥ • Fastly Compute@Edge • WasmEdge • github.com/WasmEdge/WasmEdge • ࣗલͰFaaSΛཱͯΔ৔߹ʹ࢖͏ίϯϙʔωϯτ • Cloud fl are WorkersͰ΋WASM͸ಈ͘

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3. ܰྔαϯυϘοΫεͱͯ͠ಈ͔͍ͨ͠

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Anybatross • ΧϠοΫ͕ެ։͍ͯͨ͠ YAPC::Fukuoka޲͚ͷίʔυΰ ϧϑίϯςεταΠτ • Ϣʔβʔ͔Βૹ৴͞Εͨίʔυ Λ࣮ߦ͢ΔαϯυϘοΫε؀ڥ ͱͯ͠WASMͱzeroperl͕༻͍ ΒΕ͍ͯΔ

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[AD]ཪଆϒϩά΋ॻ͍ͨͷͰͥͻʂ https://techblog.kayac.com/dive-to-anybatross

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4. Only perl can parse Perl

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???????

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PerlΛύʔε͍ͨ࣌͠ʹ࢖͏ʂ

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ࢥ͍ग़͢γϦʔζ • YAPC::Japan::Online 2022ͷΞϯΧ ϑΝϨϯεͰࢲ͕࿩ͨ͠΍ͭ • Perlͱͯ͠ղऍͰ͖ͨΒফ͑Δͱ͍͏ ϧʔϧͩͬͨ • ౰࣌͸GoͰήʔϜ෦෼Λॻ͍ͯύʔε Λ֎෦ίϚϯυݺͼग़͠Ͱ΍͍ͬͯͨ

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ࠓͳΒWebͰ ΍ΕΔͷͰ͸ͳ͍͔ʁʁʁʁʁ

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ϓϨΠ

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࣮͸Τά͍ߏ଄ Perl on WASM on WASM #SPXTFS (PPO8"4. &CJUFO XB[FSP [FSPQFSM

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·ͱΊ • ϒϥ΢β౳Ͱಈ͔ͤΔzeroperlͱ͍͏ͷ͕͋ΔΑ • WASMࣗମ͸ϒϥ΢βͰಈ͔͢Ҏ֎ͷ༻్΋͋ΔΑ • Perl͸͓΋͠ΖݴޠͳͷͰɺ͓΋͠ΖݴޠΛ͋ͪͪ͜Ͱ ಈָ͔͍ͤͯ͠Α