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Denoの仕組み / How deno works as TypeScript runtime
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linyows
August 23, 2021
Programming
2
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Denoの仕組み / How deno works as TypeScript runtime
Fukuoka.ts#3 Aug 23, 2021 での発表です。
linyows
August 23, 2021
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Transcript
Fukuoka.ts #3 TS How deno works as TS runtime Tomohisa
Oda — GMO Pepabo, Inc. / Aug 23th 2021
Fukuoka.ts #3 linyows / Tomohisa Oda GMO Pepabo, Inc.: Senior
Engineering Lead Blog: https://tomohisaoda.com 2
Fukuoka.ts #3 3 Private Projects ΞϓϦέʔγϣϯ͕ࣗϦϙδτϦ͔ Β࠷৽ͷίʔυΛݕͯࣗ͠ಈͰσϓϩ ΠͱσϦόϦʔΛߦ͏πʔϧ linuxͷuser໊લղܾΛGitHubͷ TeamϝϯόʔϦϙδτϦͷΞΫηε
ݖݶऀ͔Βߦ͏πʔϧ ϝʔϧૹ৴༻ͷಁաܕSMTPϓϩΩγͰ ϦΫΤετͱϨεϙϯεΛϩάσʔλ ϕʔεʹग़ྗ͢Δ͜ͱ͕Ͱ͖Δ New!!
Fukuoka.ts #3 ͓ͼɿDenoਂງΓ👉DenoͷΈ 4
Fukuoka.ts #3 Denoͱʁ Denoɺ@ry͕nodejsͰޙչ͍ͯ͠Δ͜ͱʢgypnode_modulespromiseͳͲʣ͔ΒϓϩδΣΫ τΛ։࢝ɻV8Λϥοϓͨ͠RustͷTypeScript/JavaScript ϥϯλΠϜɻϥϯλΠϜ୯ମͱ͍͏ΑΓ ͦΕΛؚΊͨπʔϧνΣʔϯɻ ҎԼɺΦϑΟγϟϧ͔Βɻhttps://deno.land/ • σϑΥϧτͰηΩϡΞ
👉 deno run —allow-net —allow-read foo.ts • TypeScriptΛͦͷ··αϙʔτ 👉 tscswc͕෦ͰΘΕ͍ͯΔ • γϯάϧϑΝΠϧͷΈͰಈ͘ 👉 deno compile foo.ts => file • ґଘؔݕࠪϑΥʔϚοτ༻ͷπʔϧͳͲಉࠝ 👉 deno info, deno fmt, deno test… • ಈ࡞อূͷඪ४Ϟδϡʔϧ 5
Fukuoka.ts #3 Denoͷߏ ෳͷίϯϙʔωϯτʹׂ͞Ε͍ͯͯɺ3rd Party͕ଟ༻͞Ε͍ͯΔɻ3rd Party͕ॏཁͳϙδγϣϯʹΔͨΊɺͦΕΒΛִ͢ΔϨΠϠʔߏʹͳͬ ͍ͯΔɻ deno_core(rusty_v8(v8(js & wasm)))
Έ͍ͨͳײ͡ɻ • RustͷඇಉظϥϯλΠϜTokioΛ͍ͬͯΔ • RustͱV8ͷBindingsʹrusty_v8͕୲͍ͬͯͯͦΕ3rd Party • TSඪ४Ϟδϡʔϧ 6
Fukuoka.ts #3 7 https://choubey.gitbook.io/internals-of-deno/architecture/overall-architecture
Fukuoka.ts #3 V8ͱRustͷׂ୲ deno༷ʑͳίϯϙʔωϯτ͕͋ΓଞݴޠͰߏ͞Ε͍ͯΔɻઈࡶʹ͍͏ͱɺdenoV8ͷϥούʔ Ͱ͋Δ͕ɺRustԿΛ͍ͯ͠Δͷ͔ɻ • V8͕Ͱ͖ΔͷSandboxͰECMAScriptͷղऍͰɺͦΕҎ֎ͷωοτϫʔΫϑΝΠϧૢ࡞ͳͲ RustଆͰߦ͏ • ωοτϫʔΫϑΝΠϧૢ࡞ηΩϡϦςΟͷ੍ݶΛड͚ɺ࣮ߦ࣌ʹڐՄ͓ͯ͘͠ඞཁ͕͋Δ
• V8ͱRust͋Β͔͡Ίఆٛͨؔ͠Ͱ૬ޓʹΓͱΓ͢Δ͜ͱ͕Ͱ͖Δ • σʔλϙΠϯλʔΛ͍ίϐʔ͠ͳ͍ʢจࣈྻͰͳ͍ͷͰύϑΥʔϚϯεͷ͕͓͖ͳ ͍ʣ • ॳظRustͰͳ͘GoͰ࣮͞Ε͍͕ͯͨGoͱV8ͷ̎ॏGCͷ͔ΒRustʹஔ͖͑ΒΕͨ 8
Fukuoka.ts #3 9 ΠϯλʔϑΣʔεOpsͱResourceͷ̎छྨ https://www.youtube.com/watch?v=1b7FoBwxc7E
Fukuoka.ts #3 Denoͷϓϩηε DenoRustϓϩηεͱͯ͠ىಈͯ͠ɺdenoͷϝΠϯεϨουͱV8ͷWorkerεϨουͱ TokioͷεϨουϓʔϧʹΑΓߏ͞ΕΔɻ • tsc·ͨswcʹΑͬͯґଘղܾͱϦϞʔτϑΝΠϧͷμϯϩʔυΛߦ͍γϯάϧϑΝ ΠϧԽ • ͦͷjswasm͕V8ͷதͰ࣮ߦ͞ΕΔ
• V8ʹͳ͍ؔRustଆΛݺͼग़͢ • Event Loopͷcore෦RustଆͰ࣮͞ΕTokioεέδϡʔϥʔͱͯ͠εϨουΛ ཧ͢Δ 10
Fukuoka.ts #3 11 https://deno.land/manual@v1.13.1/contributing/architecture Manualʹ͋ͬͨArchitectureਤʢࠓlibdeno͕rusty_v8ʹͳ͍ͬͯΔ͔Βݹ͍͔ʣ
Fukuoka.ts #3 Denoͷ֦ு V8WebAssembly(wasm) ࣮ߦͰ͖ΔͨΊɺwasmରԠ ͷͲΜͳݴޠͰ֦ு͕ՄೳͰ ͋Δɻ·ͨɺ࠷ۙಋೖ͞Εͨ dlopen ͰμΠφϛοΫϩʔυ ʹΑΔ֦ு͕Ͱ͖ΔΑ͏ʹͳͬ
͍ͯΔ(v1.13)ɻ 12
Fukuoka.ts #3 Demo: rust(wasm-pack)Ͱdeno֦ு 13
Fukuoka.ts #3 14 ςϯϓϨʔτͰwasmͷgreetؔͰjsͷalertؔʹbind͢ΔΑ͏ʹ
Fukuoka.ts #3 ·ͱΊ • Denonode.jsͰͷܦݧ͔ΒV8ͱͷ݁߹ʹநϨΠϠʔΛ࡞Δ͜ͱͰ҆શʹ͍ͯ͠Δ • V8Ҏ֎ʹtokiotscɺswcͳͲ3rd Party͕ଟ͘ΘΕҰൠతͳݴޠϥϯλΠϜͰෳࡶ Ͱ͋Δ͕ίϯϙʔωϯτΛࡉׂ͔͘͢Δ͜ͱͰӨڹΛখ͍ͯ͘͞͠Δ •
ϑΝΠϧૢ࡞ωοτϫʔΫͳͲV8ͷείʔϓ֎rust͕୲͍ͬͯͯϗϫΠτϦετͷη ΩϡϦςΟͰ҆શΛ୲อ͍ͯ͠Δ • V8ͱRustͷؒʹσʔλίϐʔͳͦ͘ͷଞͷύϑΥʔϚϯεʹྗͰ͖ΔΑ͏ʹ͍ͯ͠Δ 15
Fukuoka.ts #3 16 Thank You, We’re Hiring! ʮϖύϘΩϟϦΞ࠾༻ʯݕࡧ