モテる！筋肉コンパイラ自作入門 - 草食男子からの卒業

by Yuta Totz

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ϞςΔʂ ے೑ίϯύΠϥࣗ࡞ೖ໳ ʙ૲৯உࢠ͔Βͷଔۀʙ

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ࣗݾ঺հ

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ށ௩༎ଠ (@totzyuta) גࣜձࣾ OneBox ίʔώʔΛᔸΕ͍͍ͯͨ ݉ CTO (ಡΈ: ࡶ༻)

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ΈΜͳ͕Ұ౓͸ߟ͑Δ

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Ϟς͍ͨ…

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͚ͩͲͲ͏͢Ε͹…

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ίϯύΠϥʂ

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ίϯύΠϥͬͯͭ͘ΕΔͷ…ʁ

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ͭͬͯ͘΋ҙຯͳͦ͞͏…

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ίϯύΠϥΛͭ͘Ζ͏

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ίϯύΠϥΛͭ͘Δͱ… 1. ܭࢉػ͕ߴڃݴޠΛͲͷΑ͏ʹղऍ͍ͯ͘͠ ͷ͔ཧղ͢Δ͜ͱ͕Ͱ͖Δ 2. ܭࢉػࣗମ΍OSͷ࢓૊Έʹ͍ͭͯ΋ߟ͑ΕΔɹ => ϞςΔʂ

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ίϯύΠϥ͕ͯ͠Δ͜ͱ

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ίϯύΠϥ • ࣈ۟ղੳث => τʔΫϯ੾Γग़͠ • ߏจղੳث => γϯλοΫενΣοΫ • ҙຯղੳ => ܕͷνΣοΫɺະఆٛม਺ɺؔ਺ • ࠷దԽ => ΑΓޮ཰తͳॲཧɺϝϞϦ࢖༻ • ίʔυੜ੒ => λʔήοτϓϩάϥϜੜ੒

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ίϯύΠϥ • ࣈ۟ղੳث => τʔΫϯ੾Γग़͠ • ߏจղੳث => γϯλοΫενΣοΫ • ҙຯղੳ => ܕͷνΣοΫɺະఆٛม਺ɺؔ਺ • ࠷దԽ => ΑΓޮ཰తͳॲཧɺϝϞϦ࢖༻ • ίʔυੜ੒ => λʔήοτϓϩάϥϜੜ੒ άάͬͯͶὑ

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ίϯύΠϧͷྲྀΕ ιʔεϓϩάϥϜ τʔΫϯྻ ߏจ໦ தؒޠ ΦϒδΣΫτίʔυ ࣈ۟ղੳ ߏจղੳ ߏจղੳ ࠷దԽ ίʔυੜ੒

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ίϯύΠϧͷྲྀΕ ιʔεϓϩάϥϜ τʔΫϯྻ ߏจ໦ தؒޠ ΦϒδΣΫτίʔυ ࣈ۟ղੳ ߏจղੳ ߏจղੳ ࠷దԽ ίʔυੜ੒ άάͬͯͶὑ

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࣮૷

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ίϯύΠϥΛ࡞Δखॱ 1. ʢݴޠΛఆٛ͢Δʣ 2. ࣈ۟ղੳثΛͭ͘Δ 3. ߏจղੳثΛͭ͘Δ (1) ԋࢉࢠॱҐߏจղੳ (2) ࠶ؼԼ߱ܕߏจղੳ 4. ࠷దԽʢͭΒ͍ʣ 5. ίʔυੜ੒ॲཧ෦෼Λͭ͘Δ

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ศརͳπʔϧ

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ࣈ۟ղੳث & ߏจղੳث ࣗಈੜ੒πʔϧ

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lex & yacc

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͜ΕΛ࢖͑͹ ΋ͬͱ؆୯ͩ!! ΍ͬͨ͊͊͊͊

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yacc / lex ͳ͠Ͱ࡞ͬͯΈΔ

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…ے೑Ͱ࡞Βͳ͍ͱϞςͳ͍ʂ

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ࣈ۟ղੳثΛͭ͘Δ • දۦಈܕΦʔτϚϯ => ऴ୺ه߸ɺඇऴ୺ه ߸ɺੜ੒نଇɺग़ൃه߸Ͱߏ੒ • ߏ଄ମͰঢ়ଶભҠදΛఆٛͯ͠ঢ়ଶΛભҠ͢Δ • τʔΫϯͷλΠϓΛఆٛ͢Δ • Ғେͳݴޠ͸େ఍ࣗ࡞

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ߏจղੳثΛͭ͘Δ • ԋࢉࢠॱҐߏจղੳ • ελοΫΛ࢖ͬͯٯϙʔϥϯυه๏Ͱग़ྗ • ೋ෼໦Λ࢖ͬͯࢉज़͚ࣜͩͷߏจ໦Λੜ੒ • ϙΠϯλΛ࢖ͬͯϊʔυΛදݱ

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ߏจղੳثΛͭ͘Δ • ࠶ؼԼ߱ܕߏจղੳ • จ๏نଇͻͱͭʹ͖ͭղੳؔ਺Λͻͱͭ༻ҙ • ޙ໭Γ: ๯಄෦෼͕ڞ௨͢Δจ๏͕͋Δͱ͖ʹͲͪΒͷੜ ੒نଇʹै͑͹ྑ్͍͔த·ͰΘ͔Βͳ͍ => ຐज़: จ๏ Λมߋ or ے೑Ͱ͘͘Γͩ͠ • ࠨ࠶ؼ => আڈΞϧΰϦζϜʹैͬͯจ๏Λมߋͯ͠আڈ (ݴޠΛॻ্͘Ͱͷมߋͳ͠ʹมߋͰ͖Δ)

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͍Ζ͍Ζେมͳ͜ͱ΋͋Δ

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Ұ౓͸ے೑Ͱ࡞Ζ͏ʂ

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ίϯύΠϥΛͭ͘Ζ͏ʂ https://github.com/totzyuta/espresso

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ߏจղੳث QBSTFSD ίϯύΠϧͷྲྀΕʢespressoʣ ιʔε ϓϩάϥϜ τʔΫϯྻ ߏจ໦ NBJOD ࣈ۟ղੳث MFYFSD ίʔυੜ੒ HFOD ߏจղੳ ࣈ۟ղੳ ΦϒδΣΫτίʔυ ίʔυੜ੒ τʔΫϯྻ ߏจ໦ ΦϒδΣΫτίʔυ τʔΫϯྻ ߏจ໦ ΦϒδΣΫτίʔυ

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ߟ͑ͨ͜ͱ • શͯͷղੳث͕໌֬ͳ໾ׂΛ࣋ͭ΂͖ • ࡉ෼Խ͞Εͨؔ਺ • ϑΝΠϧ෼ׂ͸େ͖ͳϑΥʔΧεͷϞδϡʔϧ෼ׂ • Ӎ߱ͬͯ஍ݻ·Δ => ࠷ॳ͸ݴޠ࢓༷ݻΊ͗͢ͳ͍ํ ͕ޙͰࢮͳͳ͍ • είʔϓͷখ͍͞Τϥʔग़ྗ (ಛʹߏจղੳث)

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ίϯύΠϥΛ࡞ͬͯΈͯ… • ܭࢉػ͕ߴڃݴޠΛͲͷΑ͏ʹղऍ͍ͯ͘͠ͷ͔ͪΐͬͱཧղ ͢Δ͜ͱ͕Ͱ͖ͨ • ϞςΔ • ܭࢉػࣗମ΍OSͷ࢓૊Έʹ͍ͭͯ΋ߟ͑ͨ • ίϯϐϡʔλαΠΤϯεͬͯ͜ΜͳΜ…ͯͳΔ͕ͦͷ൓ಈͰͳ Μ͔΋ͬͱ޷͖ʹͳΔ • ϞςΔ

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ॻ੶ • ίϯύΠϥʔݪཧɾٕ๏ɾπʔϧʢA.V.ΤΠϗ ଞʣα ΠΤϯεࣾ • 2िؒͰͰ͖ΔʂεΫϦϓτݴޠͷ࡞Γํʢઍ༿ ࣎ʣ • ;ͭ͏ͷίϯύΠϥΛͭ͘Ζ͏ʢ੨໦ ๆ࿠ʣιϑτό ϯΫΫϦΤΠςΟϒ • ̓ͭͷݴޠ ̓ͭͷੈքʢBruce A. Tateʣ

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OSSͳίϯύΠϥ • Ruby • github.com/ruby/ruby • Golang • https://github.com/golang/go • 8cc • github.com/rui314/8cc