Cookpad 2016 Summer Intern: Programming Paradigm

ϓϩάϥϛϯάύϥμΠϜ .JOFSP"PLJ

࢒೦ͳ͓஌Βͤ

ϓϩάϥϛϯά  ύϥμΠϜͷ  ࿩ͳΜͯ  Ұ੾͠·ͤΜ

͙͢ʹ໾ʹཱͨͳ͍ ͜ͱΛֶͿ

͙͢ʹ໾ཱͭ஌ࣝ͸ ͙͢໾ʹཱͨͳ͘ͳΔ

՝୊આ໌

՝୊ +BWB4DSJQUίϯύΠϥΛ࣮૷ͤΑ

ʜʜͱ͍͏ͷ͸  ͕͢͞ʹ࣌ؒతʹແཧͳͷͰɺ

՝୊ +BWB4DSJQUίϯύΠϥͷ  ίʔυδΣωϨʔλʔΛ࣮૷ͤΑ

+BWB4DSJQUʹ͍ͭͯ͸ͪ͜Β l&$."4DSJQU-BOHVBHF4QFDJpDBUJPOz IUUQXXXFDNBJOUFSOBUJPOBMPSHQVCMJDBUJPOT pMFT&$."45&DNBQEG

ࠓ೔࣮૷͢Δػೳ w ੔਺Ϧςϥϧʢ ʣ w Ճࢉʢ ʣ w
৚݅ԋࢉࢠʢD UFʣͱJGจ w ؔ਺ݺͼग़͠ͱҾ਺ͷࢀরɺSFUVSOจ w ؆୯ͳ࠷దԽ w BOENPSF

ίϯύΠϥͷجૅͱ +FU4QJEFS

+FU4QJEFS w +FU4QJEFS͸ࠓճͷΠϯλʔϯઐ༻ʹ։ൃͨ͠ +BWB4DSJQUίϯύΠϥ w 'JSFGPYͷ+BWB4DSJQU࣮૷Ͱ͋Δ4QJEFS.POLFZ 7.༻ͷόΠτίʔυΛੜ੒͢Δ w ίϯύΠϥͷKFUTQJEFSίϚϯυͱɺ7.ͷKTWNί Ϛϯυ͔Β੒Δ

ΠϯλʔϓϦλʔʹΑΔ࣮ߦ ίϯύΠϥʔʹΑΔ࣮ߦ ίϯύΠϥʔͱΠϯλϓϦλʔ ػցޠίʔυ ιʔείʔυ ίϯύΠϥʔ ίϯϐϡʔλʔ ιʔείʔυ ධՁث ࣮ߦ
࣮ߦ

7.ʹΑΔ࣮ߦ όʔνϟϧϚγϯ w ιϑτ΢ΣΞͰߏஙͨ͠ί ϯϐϡʔλʔ͕όʔνϟϧ Ϛγϯʢ7.7JSUVBM .BDIJOFʣ w +BWB7.͕༗໊͕ͩɺ࠷ۙ ͷΠϯλʔϓϦλʔ͸΄΅
͜Ε w +BWB7.ͷίʔυ͸όΠτ ίʔυͱݺ͹ΕΔ ಺෦ίʔυ ιʔείʔυ ίϯύΠϥʔ 7. ࣮ߦ

4QJEFS.POLFZʢ$ ʣ ಠࣗʹ࡞ͬͨ෦෼ʢ3VCZ$ ʣ +FU4QJEFSͷΞʔΩςΫνϟ όʔνϟϧϚγϯ ίϯύΠϥʔ +BWB4DSJQU όΠτίʔυ KTDϑΝΠϧ
+BWB4DSJQU ίϯύΠϥʔ ϩʔμʔ KTWNίϚϯυ KFUTQJEFSίϚϯυ

+FU4QJEFSͷೖख w ҎԼͷϨϙδτϦΛ֎ͷ(JU)VCʢ()&Ͱ͸ͳ͍ʣ ͰGPSLɺDMPOF͍ͯͩ͘͠͞ w IUUQTHJUIVCDPNBBNJOFKFUTQJEFSDPVSTFHJU w DMPOFઌʹDEͯ͠CVOEMFJOTUBMM

Φϓγϣϯ͸IFMQʹฉ͚ % ./bin/jetspider --help jetspider [options] {JS_FILE | -e SOURCE}
--dump-tokens Dumps lexical tokens and quit. --dump-ast Dumps AST and quit. --dump-semantic Dumps semantic tree and quit. --dump-object Dumps object file and quit. -e, --source=TEXT Give source code from option. --help Prints this message and quit. % ./bin/jsvm --help Usage: ./bin/jsvm [options] SOURCE Options: -p, --print Executes source and print the last result. -t, --trace Executes source with tracing. -d, --disassemble Disassembles source.

ίϯύΠϥͷҰൠతͳߏ੒ ύʔαʔʢQBSTFSʣ ҙຯղੳثʢTFNBOUJDBOBMZ[FSʣ ΦϓςΟϚΠβʔʢPQUJNJ[FSʣ ίʔυδΣωϨʔλʔʢDPEFHFOFSBUPSʣ ιʔείʔυ ࣮ߦՄೳίʔυ ϑΣΠζߏจղੳ ϑΣΠζҙຯղੳ ϑΣΠζ࠷దԽ
ϑΣΠζίʔυੜ੒

+FU4QJEFSͷ࣮૷ঢ়گ ύʔαʔʢQBSTFSʣ ҙຯղੳثʢTFNBOUJDBOBMZ[FSʣ ΦϓςΟϚΠβʔʢPQUJNJ[FSʣ ίʔυδΣωϨʔλʔʢDPEFHFOFSBUPSʣ +BWB4DSJQUʢ KTʣ 4QJEFS.POLFZόΠτίʔυʢ KTDʣ ະ׬੒
ͳ͍

+FU4QJEFSͷιʔεπϦʔ w CJO w KFUTQJEFSίϯύΠϥʔ w KTWN7. w MJCKFUTQJEFS w
DPNQJMFSSCίϯύΠϥυϥΠόʔ w QBSTFSSCύʔαʔ w SFTPMWFSSCҙຯղੳث w DPEF@HFOFSBUPSSCίʔυδΣωϨʔλʔ w BTTFNCMFSSCόΠτίʔυ%4- w PCKFDU@pMFSC+4$ϑΝΠϧ ͜͜Λॻ͘

ίϯύΠϧͷաఔ

ϑΣΠζߏจղੳ w ιʔείʔυʢςΩετʣ ͷߏจΛνΣοΫ͢Δ ͱಉ࣌ʹɺѻ͍΍͍͢ Α͏πϦʔߏ଄ʢ"45 "CTUSBDU4ZOUBY5SFFʣ ΁ม׵͢Δ JG
J \ QSJOU J ^FMTF\ J ^ JG DBMM QSJOU J J UIFO FMTF MIT SIT GVODUJPO BSHT J MFGU SJHIU DPOE

ࣈ۟ղੳ w ߏจղੳͰ͸·ͣιʔε ίʔυʢจࣈͷྻʣΛ τʔΫϯʢ୯ޠʣͷྻ ʹ෼ׂ͢Δ w ίϝϯτ΍ۭന͸͜ͷ ஈ֊Ͱফͯ͠͠·͏  ʢ͜ͱ͕ଟ͍ɻ+4΍3VCZʹ͸҉໧ͷจ
ऴ୺͕͋ΔͨΊվߦͷ৘ใ͸࢒͢ඞཁ ͕͋Δɻ+BWB%PD΍42-ώϯτͳͲί ϝϯτ͕ඞཁͳ৔߹΋͋Δʣ lJG J \aOQSJOU J aO^FMTF \aOJaO^z JG lz J lz \ laOz QSJOU J laOz ^ lz FMTF lz \ laOl J ll ʜʜ

<PQ>τʔΫϯྻΛݟΔ % ./bin/jetspider js/arith.js --dump-tokens FUNCTION function S " "
IDENT f ( ( IDENT x ) ) S " " { { S "\n " RETURN return S " " NUMBER 1 S " " + + S " " IDENT x S " " * * S " " NUMBER 3 ; ; S "\n" } } S "\n" KFUTQJEFSEVNQUPLFOT'*-&KT GVODUJPOG Y \ SFUVSO Y ^ ˝ιʔείʔυʢKTBSJUIKTʣ

JGจ จ ؔ਺ݺͼग़͠ ൺֱࣜ ڱٛͷߏจղੳ w τʔΫϯྻͷύλʔϯ͔ΒɺΑΓେ͖ͳߏ଄Λൃݟ ͍ͯ͘͠ w ൃݟͨ͠ΒπϦʔʹ͢Δ
JG J \ QSJOU J ʜʜ

<PQ>"45ΛݟΔ % ./bin/jetspider --dump-ast js/arith.js type: SourceElementsNode value: - type:
FunctionDeclNode value: f arguments: - type: ParameterNode value: x function_body: type: FunctionBodyNode value: type: SourceElementsNode value: - type: ReturnNode value: type: AddNode left: type: NumberNode value: 1 value: type: MultiplyNode left: type: ResolveNode value: x value: type: NumberNode value: 3 KFUTQJEFSEVNQBTU'*-&KT GVODUJPOG Y \ SFUVSO Y ^ ˝ιʔείʔυʢKTBSJUIKTʣ WBMVF "EE/PEF /VNCFS/PEF .VMUJQMZ/PEF 3FTPMWF/PEF /VNCFS/PEF 3FUVSO/PEF WBMVF MFGU WBMVF MFGU WBMVF WBMVFY WBMVF

ϑΣΠζҙຯղੳ w ม਺ࢀরͱม਺એݴΛ݁ͼ͚ͭͨΓɺܕνΣοΫΛ ͨ͠Γ͢Δ w "45ʹ্هͷ৘ใΛ෇Ճͨ͠σʔλߏ଄ʢதؒίʔ υʣΛग़ྗ͢Δɻ"45Λͦͷ··࢖͏৔߹΋͋Ε͹ɺ όΠτίʔυʹ͍ۙίʔυΛ࢖͏͜ͱ΋͋Δ w +FU4QJEFSͰ͸ࢀর৘ใ෇͖ͷ"45Λग़ྗ͢Δ

<PQ>தؒίʔυΛݟΔ % ./bin/jetspider --dump-sem js/arith.js - type: FunctionDeclNode value: f
arguments: - type: ParameterNode value: x function_body: type: FunctionBodyNode value: type: SourceElementsNode value: - type: ReturnNode value: type: AddNode left: type: NumberNode value: 1 value: type: MultiplyNode left: type: ResolveNode value: x ref: "[function f]:param:x" value: type: NumberNode value: 3 - type: SourceElementsNode value: - KFUTQJEFSEVNQTFNBOUJD'*-&KT "EE/PEF /VNCFS/PEF .VMUJQMZ/PEF 3FTPMWF/PEF /VNCFS/PEF 3FUVSO/PEF WBMVF MFGU WBMVF MFGU WBMVF WBMVF WBMVFY WBMVF WBMVFY QBSBNY 1BSBNFUFS/PEF 'VODUJPO%FDM/PEF BSHVNFOUT 7BSJBCMFΦϒδΣΫτ

ϑΣΠζ࠷దԽ w ϓϩάϥϜͷҙຯΛม͑ͣʹ࣮ߦ଎౓Λ଎͘͠ ͨΓɺ࢖༻ϝϞϦྔΛݮΒ͢ͳͲͷվળΛߦ͏ w ఻౷తʹ͸ҙຯղੳͱίʔυੜ੒ͷؒʹҐஔ෇͚Β ΕΔ͕ɺίϯύΠϧͷ͋ΒΏΔஈ֊Ͱߦ͏͜ͱ͕Ͱ ͖Δ w ࠷ۙ͸ϦϯΫ࣌࠷దԽͱ͍͏΋ͷ΋͋ΔFH--7.
w +FU4QJEFSͰ͸࠷దԽΛʢ·ͩʣߦ͍ͬͯͳ͍

ϑΣΠζίʔυੜ੒ w ҙຯղੳࡁΈͷσʔλ Λݩʹɺػցޠ΍7.ίʔ υΛੜ੒͢Δ w ࣮ࡍ͸ίʔυ͚ͩͰ͸ ͳ͘ɺγϯϘϧςʔϒϧ ʢม਺දʣ΍ϦϯΫ৘ ใ΋ؚΉΦϒδΣΫτϑΝ
ΠϧΛੜ੒͢Δ "EE/PEF /VNCFS/PEF .VMUJQMZ/PEF 3FTPMWF/PEF /VNCFS/PEF 3FUVSO/PEF WBMVF MFGU WBMVF MFGU WBMVF WBMVF WBMVFY YQBSBN WBMVF dd 01 int8 1 54 00 00 getarg 0 dd 03 int8 3 1d mul 1b add 05 return

<PQ>ίϯύΠϧ͢Δ KFUTQJEFS'*-&KT % ./bin/jetspider js/arith.js % ls -l js/arith.jsc -rw-r--r--
1 minero-aoki staff 228 Aug 25 10:59 js/arith.jsc w KTϑΝΠϧΛࢦఆ͢Δ͚ͩ Ͱ0, w ֦ுࢠΛ KTDʹม͑ͨϑΝ Πϧʢ+4$ϑΝΠϧʣ͕ੜ੒ ͞ΕΔ

<PQ>+4$ϑΝΠϧΛݟΔ KFUTQJEFSEVNQPCKFDU'*-&KT % ./bin/jetspider --dump-obj js/arith.js - n_vars: 0 n_args:
1 vars: - x prolog_length: 0 js_version: 185 n_fixed: 0 script_bits: 32 code: - dd 01 int8 1 - 54 00 00 getarg 0 - dd 03 int8 3 - 1d mul - 1b add - 05 return - c5 stop srcnotes: '' filename: js/arith.js lineno: 1 n_slots: 3 static_level: 1 atoms: [] blocks: [] upvars: [] regexps: [] closed_args: [] closed_vars: [] trynotes: [] consts: [] - n_vars: 0 n_args: 0 ҎԼུ w όΠτίʔυ͚ͩͰ͸ͳ͘ɺ +4$ϑΝΠϧͷ߲໨͕͢΂ͯ දࣔ͞ΕΔ w ౰વ͚ͩͲίʔυδΣωϨʔ λʔ͕׬੒͍ͯ͠ͳ͍ͱΤ ϥʔʹͳͬͯ͠·͏ w ࣮૷ͨ݁͠ՌΛ֬ೝ͢Δͨ Ίʹ࢖༻

+4$ϑΝΠϧͷߏ଄ w 4QJEFS.POLFZ಺Ͱ͸ؔ਺ ఆٛͭʹରͯ͠TUSVDU +4'VODUJPO͕ͭੜ੒͞Ε Δ w +4$ϑΝΠϧʹ͸ιʔεϑΝ ΠϧͰఆٛ͞Εͨ͢΂ͯͷؔ ਺ʹରԠ͢ΔTUSVDU
+4'VODUJPO͕֨ೲ͞ΕΔ w ࠷ޙͷͭ͸ৗʹTUSVDU +44DSJQUͰϝϯόʔ͕গͳ͍ +4$ϑΝΠϧ TUSVDU+4'VODUJPO TUSVDU+4'VODUJPO TUSVDU+44DSJQU UPQMFWFM NBHJD Y%&"%# ؔ਺ͷ਺ ʢ ͸τοϓϨϕϧʣ

+FU4QJEFSͰ ίʔυΛੜ੒͢Δ

࿅श໰୊ w ੔਺ఆ਺ʢ/VNCFS/PEFʣΛ࣮૷ͤΑ w KTOVNCFSKT͕ಈ࡞͢ΔΑ͏ʹ࣮૷͠Α͏ w ූ߸෇͖Ϗοτ੔਺ΛQVTI͢ΔzJOUz໋ྩΛ࢖͏

՝୊ͷ࣮૷εςοϓ ࣮૷͢΂͖+BWB4DSJQUͷίʔυΛ֬ೝ͢Δ  ʢͰ͖Δ͚ͩγϯϓϧͳ+4ίʔυΛ༻ҙ͠Α͏ʂʣ KFUTQJEFSEVNQBTU TFNͰ"45ΛݟΔ KTWNE EJTBTTFNCMF
Ͱʮ౴͑ʯͷόΠτίʔυΛݟΔ $PEF(FOFSBUPSͷϝιουΛ࣮૷͢Δ KFUTQJEFSEVNQPCKͰग़ྗ݁ՌΛ֬ೝ͢Δ ίϯύΠϧ͠ɺKTWNQSJOUͰ࣮ߦ͢Δ

"45ΛݟΔ % ./bin/jetspider --dump-ast js/number.js type: SourceElementsNode value: - type:
ExpressionStatementNode value: type: NumberNode value: 77 ʮจʯͷϦετΛද͢ϊʔυ ͭͷ͔ࣜΒͳΔ ʮจʯͷϊʔυ ੔਺Ϧςϥϧ  ͷϊʔυ

ʮਖ਼ղʯΛݟΔ w KTWNE EJTBTTFNCMF ίϚϯυͰ4QJEFS.POLFZ ʹΑΔίϯύΠϧ݁ՌΛݟΔ͜ͱ͕Ͱ͖Δ w τοϓϨϕϧΛٯΞηϯϒϧ w ಛఆͷؔ਺ΛٯΞηϯϒϧ
jsvm -d ϑΝΠϧ໊.js jsvm -d ϑΝΠϧ໊.js ؔ਺໊

OVNCFSKTͷٯΞηϯϒϧ % ./bin/jsvm -d js/number.js main: 00000: dd 4d int8
77 00002: 02 popv 00003: c5 stop ‣ Θ͔Βͳ໋͍ྩ͕͋ͬͨΒ(3061"%ͷόΠτ ίʔυϦϑΝϨϯεͰ֬ೝ /VNCFS/PEFͰग़ྗ͢΂͖෦෼ &YQSFTTJPO4UBUFNFOU/PEF͕ग़ྗ τοϓϨϕϧͱؔ਺ͷ຤ඌͰࣗಈग़ྗ

"45ͷτϥόʔε w USBWFSTFπϦʔͷϊʔ υΛॱ൪ʹͨͲ͍ͬͯ ͘ૢ࡞ w खଓ͖ܕݴޠͳΒ࠶ؼ ݺͼग़͠ɺ001Ͱ͸ 7JTJUPSύλʔϯΛ࢖͏ ͷ͕ఆੴ
τϥόʔεʢUSBWFSTFʣ "EE/PEF /VNCFS/PEF .VMUJQMZ/PEF 3FTPMWF/PEF /VNCFS/PEF 3FUVSO/PEF ̍ ̎ ̏ ̐ ̑ ̒

7JTJUPSύλʔϯͰ  "45Λτϥόʔε͢Δ DMBTT"457JTJUPS EFGWJTJU@3FUVSO/PEF OPEF WJTJUOPEFWBMVFˡSFUVSOจͷࣜΛτϥόʔε FOE EFGWJTJU@"EE/PEF OPEF
WJTJUOPEFMFGUˡl zͷࠨଆͷࢬΛτϥόʔε WJTJUOPEFWBMVFˡl zͷӈଆͷࢬΛτϥόʔε FOE EFGWJTJU@/VNCFS/PEF OPEF ੔਺Ϧςϥϧʹ͸ͨͲΔࢬ͕ͳ͍ʢMFBGʣ FOE FOE "EE/PEF /VNCFS/PEF /VNCFS/PEF 3FUVSO/PEF

WJTJUϝιουͷ࣮૷ w ଞͷݴޠͩͱେม͕ͩ3VCZͳΒ@@TFOE@@ͰҰൃ EFGWJTJU OPEF @@TFOE@@ lWJTJU@\OPEFDMBTT^z FOE

όΠτίʔυͷग़ྗ w "TTFNCMFSΦϒδΣΫτʹఆٛ͞Ε͍ͯΔɺόΠ τίʔυͱಉ໊ͷϝιουΛݺ΂͹Α͍ w $PEF(FOFSBUPSΫϥε಺Ͱ͸!BTNʹ"TTFNCMFS ΦϒδΣΫτ͕ೖ͍ͬͯΔ w ྫ w
!BTNQPQ w !BTNHFUBSH

<PQ>+4$ϑΝΠϧΛ࣮ߦ͢Δ w KTWNίϚϯυʹ KTDϑΝΠϧΛࢦఆ͢Δͱɺͦͷ ίʔυΛ࣮ߦ͢Δ w QSJOUΦϓγϣϯ෇͖ͩͱɺ࣮ߦͨ͋͠ͱ࠷ޙͷࣜ ͷ஋Λදࣔ͢Δ w ؔ਺ݺͼग़͠Λ࣮૷͢Δ·Ͱ͸஋ΛදࣔͰ͖ͳ͍
ͷͰɺ͜ͷΦϓγϣϯͰ݁ՌΛ֬ೝ͢Δ KTWN'*-&KTD KTWNQSJOU'*-&KTD

࿅श໰୊ w l lԋࢉࢠʢ"EE/PEFʣΛ࣮૷ͤΑ w KTBEEKT KTBEEKTΛಈ࡞ͤ͞Α͏ w lzԋࢉࢠʢ4VCUSBDU/PEFʣͷ࣮૷͕ࢀߟʹͳΔ w
BEEKT BEEKTͰొ৔͢Δάϩʔόϧม਺POF UXP UISFFʹ͸ͦΕͧΕ ੔਺ ͕ࣄલʹ୅ೖͯ͋͠ΔʢKTWNͷಠࣗ࢓༷ʣ w ͷΑ͏ʹϦςϥϧ͚ͩͷՃࢉͩͱɺ࠷దԽ͞ΕͯՃࢉࣗମ͕ফ໓ ͯ͠͠·͏ͷͰɺม਺Λ࢖ͬͯ࠷దԽΛճආ͍ͯ͠Δʜʜ

4QJEFS.POLFZ7. ࣮ߦͷ࢓૊ΈʢʣελοΫ w 4QJEFS.POLFZͷ7.͸ελο ΫϚγϯ w ໋֤ྩ͸ɺ7.ελοΫͷઌ ಄ʹ஋ΛੵΉʢQVTIʣɺऔ Γग़ͯ͠ܭࢉ͢ΔʢQPQʣɺ ࢀরͯ͠ܭࢉ͢Δɺͷ͍ͣ
Ε͔ͷॲཧΛߦ͏ʢ૊Έ߹ Θͤ΋ΞϦʣ w DGϨδελϚγϯ int8 5 add int8 3 return QPQ QVTI QVTI QVTI HFU

<PQ>7.ͷಈ࡞ΛݟΔ w KTWNʹUSBDFΦϓγϣ ϯΛ෇͚࣮ͯߦ͢ΔͱҎ Լͷ಺༰΋ग़ྗͰ͖Δ w ࣮ߦ͠Α͏ͱ͍ͯ͠Δ όΠτίʔυ w QVTIͱQPQ
w มԽޙͷ7.ελοΫ KTWNUSBDF'*-&KTD % ./bin/jsvm --trace js/lvar.js 1: 00000: 00 nop stack: 6: 00001: f1 00 00 callglobal "f" stack: function f() {\n var a = 1, b;\n p(a);\n} undefined 6: 00004: 3a 00 00 call 0 inputs: f, f @ 2 output: (void 0) @ 0 stack: 2: 00000: 3f one output: 1 @ 1 stack: 1 2: 00001: 57 00 00 setlocal 0 inputs: 1 @ 1 output: (void 0) @ 0 stack: 2: 00005: 56 00 01 getlocal 1 output: b @ 1 stack: undefined 2: 00008: 51 pop inputs: b @ 1 stack: 3: 00009: d9 00 00 callgname "p" ....

࿅श໰୊ w &YQSFTTJPO4UBUFNFOUϊʔυʢͭ·ΓʮจʯʣͰ QPQ໋ྩʢQPQW໋ྩʣΛൃߦ͍ͯ͠Δͷ͸Կͷͨ Ί͔ʁ w QPQ໋ྩΛൃߦ͠ͳ͔ͬͨΒԿ͕ى͖Δͷ͔͔֬Ί Α͏

৚݅෼ذͱ δϟϯϓ໋ྩ

՝୊ w ৚݅ԋࢉࢠʢB CDʣΛ࣮૷ͤΑ w KTDPOEFYQSKTΛಈ͔ͦ͏ w ͏·͘ॻ͘ͱδϟϯϓ໋ྩʢJGFR HPUPʣͭͰࡁΉ

4QJEFS.POLFZ7.  ࣮ߦͷ࢓૊Έʢʣ1$ w ໋ྩ͸όΠτҎ্ͰɺՄม௕ɻ ྫ͑͹͔͚ࢉΛ͢ΔNVM໋ྩ͸ Y%ͷόΠτ w 1$ 1SPHSBN$PVOUFS Ϩδε
λʔ͸ݱࡏ࣮ߦதͷʢ͜Ε͔Β ࣮ߦ͢ΔʣόΠτίʔυҐஔΛ ࢦ͢ w 1$͕ࢦ໋͢ྩΛ࣮ߦͯ͠1$Λ ࣍ʹਐΊΔɺ͕7.ͷجຊͷಈ͖ dd 01 int8 1 54 00 00 getarg 0 dd 03 int8 3 1d mul 1b add 05 return 1$ dd 01 int8 1 54 00 00 getarg 0 dd 03 int8 3 1d mul 1b add 05 return 1$ ஋ ஋ HFUBSHΛ࣮ߦ

4QJEFS.POLFZ7. ࣮ߦͷ࢓૊Έʢʣແ৚݅δϟϯϓ w ແ৚݅δϟϯϓ໋ྩ HPUP͸1$Λมߋ͢Δ w ʮHPUPʯ͸  ʮ1$Λ ʯ͢ΔޮՌ ͕͋Δ
.... 07 00 0f ifeq 15 d9 00 00 callgname 0 dd 07 int8 7 3a 00 01 call 1 51 pop 06 00 0c goto 12 d9 00 00 callgname 0 dd 09 int8 9 3a 00 01 call 1 51 pop c5 stop 1$ ஋ .... 07 00 0f ifeq 15 d9 00 00 callgname 0 dd 07 int8 7 3a 00 01 call 1 51 pop 06 00 0c goto 12 d9 00 00 callgname 0 dd 09 int8 9 3a 00 01 call 1 51 pop c5 stop 1$ ஋

4QJEFS.POLFZ7. ࣮ߦͷ࢓૊Έʢʣ৚݅෇͖δϟϯϓ w ʮJGFRʯ͸ʮελο Ϋઌ಄͕GBMTFͳΒ1$ Λ ʯ  ͨͿΜɺʮUSVFͳΒͦͷ··࣍ͷ໋ྩʹߦ͖ɺGBMTFͳ Βඈ΂ʯͱ͍͏ҙਤͩͱࢥ͏͚Ͳʜʜɻ  ͪͳΈʹJGFRͱ͍͏໊લͷͤ͘ʹ౳Ձൺֱ΋͠ͳ͍ɻ
.... 07 00 0f ifeq 15 d9 00 00 callgname 0 dd 07 int8 7 3a 00 01 call 1 51 pop 06 00 0c goto 12 d9 00 00 callgname 0 dd 09 int8 9 3a 00 01 call 1 51 pop c5 stop 1$ ஋ .... 07 00 0f ifeq 15 d9 00 00 callgname 0 dd 07 int8 7 3a 00 01 call 1 51 pop 06 00 0c goto 12 d9 00 00 callgname 0 dd 09 int8 9 3a 00 01 call 1 51 pop c5 stop 1$ ஋

+FU4QJEFSͰͷ ٯॱํ޲΁ͷδϟϯϓ w ਐߦํ޲ͱٯ΁δϟϯϓ͢Δͱ͖͸ɺ !BTNMPDBUJPOΛ࢖͏ MPD!BTNMPDBUJPO ʢͳʹ໋͔ྩʣˡMPD͸͜ͷ໋ྩͷΦϑηοτΛࢦ͢-PDBUJPO !BTNHPUPMPDˡMPDͷҐஔ΁δϟϯϓʢ໭Δʣ

+FU4QJEFSͰͷ ਐߦํ޲΁ͷδϟϯϓ w ਐߦํ޲΁δϟϯϓ͢Δͱ͖͸ɺ·ͩੜ੒͍ͯ͠ͳ͍ίʔ υͷҐஔ͕ඞཁʹͳΔ w !BTNMB[Z@MPDBUJPOͰ۩ମతͳ஋ͷຒ·͍ͬͯͳ͍ -PDBUJPOΦϒδΣΫτΛੜ੒͠ɺδϟϯϓ͍ͨ͠ઌͰ pY@MPDBUJPOΛݺΜͰ஋ΛຒΊΔ MPD!BTNMB[Z@MPDBUJPO 
!BTNHPUPMPDˡMPD΁δϟϯϓ    !BTNpY@MPDBUJPO MPD ˡMPDͷҐஔΛఆٛ  ʢԿ໋͔ྩʣ

ؔ਺ͷݺͼग़͠

՝୊ w ؔ਺ݺͼग़͠ʢ'VODUJPO$BMM/PEFʣΛ࣮૷ͤΑɻ ·ͣ͸άϩʔόϧؔ਺ͷΈαϙʔτ͠Α͏ɻ w KTGVODBMMKTΛಈ͔ͦ͏ɻ w Q͸ࣄલʹఆٛ͞Εͨؔ਺Ͱɺ3VCZͷQͱಉ͘͡ΦϒδΣΫτΛ͍͍ײ͡ʹ දࣔ͢Δಇ͖͕͋Δɻ w
ώϯτ໋ྩͷγʔέϯε͸࣍ͷͱ͓Γɻ DBMMHOBNFlؔ਺໊zˡؔ਺Λऔಘͯ͠ελοΫʹϓογϡ ୈҾ਺ΛελοΫʹϓογϡ ୈҾ਺ΛελοΫʹϓογϡ ʜʜ DBMMҾ਺ͷ਺

՝୊ w Ҿ਺ͷࢀরͱɺSFUVSOจΛ࣮૷ͤΑɻ w KTSFUVSOKT KTQBSBNKT͕ಈ࡞͢ΔΑ͏ʹ͠Α͏ɻ w ؔ਺ఆٛࣗମ͸͢Ͱʹ࣮૷͞Ε͍ͯΔɻ w ϩʔΧϧม਺͸·ͬͨ͘ҧ͏ରԠ͕ඞཁɻ·࣮ͩ૷͠ͳͯ͘Α͍ɻ
w HFUBSH໋ྩͷҾ਺͸ม਺໊Ͱ͸ͳ͘ύϥϝʔλʔ*%ɻ  ύϥϝʔλʔ*%͸ɺ3FTPMWF/PEF͔ΒOPEFWBSJBCMFJOEFYͰऔΕΔɻ

࠷దԽͱ ϓϩάϥϜͷҙຯ

՝୊ w ੔਺Ϧςϥϧ͕zzͷͱ͖͸JOU໋ྩͰ͸ͳ͘POF ໋ྩΛ࢖͏Α͏࠷దԽͤΑ w KTPQUPOFKT͕࠷దԽ͞ΕΔΑ͏ʹ͠Α͏ w l zԋࢉͷఆ਺৞ΈࠐΈΛ࣮૷ͤΑ w
"45ϨϕϧͰॲཧ͢Δํ๏ͱɺόΠτίʔυϨϕϧͰॲཧ͢Δํ๏ͷͭ ͕ߟ͑ΒΕΔɻ"45ϨϕϧͰॲཧͯ͠͠·͏ͷָ͕ɻ w KTPQUBEEKTͰBEE໋ྩ͕ൃߦ͞Εͳ͍Α͏ʹ͠Α͏

୅දతͳ࣮ߦ଎౓࠷దԽ w ໋ྩڧ౓ͷ௿ݮ w JOU EE ˠPOF G w
Y ˠY w ఆ਺ͷίϯύΠϧ࣌ܭࢉʢఆ਺৞ΈࠐΈʣ w QSJOU J ˠQSJOU J w ॲཧͷϧʔϓ֎΁ͷҠಈ w GPS WBSJJJ \QSJOU Y J ^  ˣ  WBSOY   GPS WBSJJJ \QSJOU O J ^

ϓϩάϥϜͷҙຯͱ͸ w ϓϩάϥϜͷҙຯ͸มΘ͍ͬͯͳ͍Α͏ʹࢥ͑Δ w มΘ͍ͬͯͳ͍΋ͷʢ㲈ҙຯʣ w ࣜͷ஋ʢʣ w ϓϩάϥϜ֎ʹݟ͑ΔมԽʢʮʯͱදࣔ͞ΕΔʣ w
มΘͬͨ΋ͷʢ㱠ҙຯʣ w ܭࢉաఔ w ϝϞϦ্ͷ஋ͷมߋύλʔϯ QSJOU QSJOU ࠷దԽͷͨΊ࣍ͷΑ͏ͳఆ਺৞ΈࠐΈΛͨ͠ͱ͢Δ ˞ͨͩ͠ݴޠʹΑΓʮҙຯʯ͸ҟͳΔ

ϓϩάϥϜͷҙຯΛ ఆٛɾදݱ͢Δͭͷํ๏ w ૢ࡞తҙຯ࿦ʢ0QFSBUJPOBM4FNBOUJDTʣ w ͋ΔݴޠͷදݱΛɺΑΓܗࣜతͳݴޠʹม׵͢Δ͜ͱ ͰҙຯΛදݱ͢ΔɻίϯύΠϥʔͷఆٛʹ͍ۙ  ˠDGνϡʔϦϯάϚγϯɺϥϜμܭࢉ w දࣔతҙຯ࿦ʢ%FOPUBUJPOBM4FNBOUJDTʣ
w ू߹΍ؔ਺ͳͲ਺ֶతͳ֓೦Λ༻͍ͯҙຯΛදݱ͢Δɻ ΠϯλϓϦλʔͷఆٛʹ͍ۙɻ w ެཧతҙຯ࿦ʢ"YJPNBUJDT4FNBOUJDTʣ w ͳΜ͔࿦ཧࣜͰදݱ͢ΔΒ͍͠

͖ͭͮ͸ຊͰ ʰΞϯμʔελϯσΟϯάίϯ ϐϡςʔγϣϯʱ IUUQXXXBNB[PODPKQEQ 9

˞͔͜͜Βઌʹ͸ߨٛ͸ ͳ͍ͷͰ࣮૷͋ΔͷΈ

՝୊ w ූ߸෇͖Ϗοτ੔਺·Ͱѻ͑ΔΑ͏ʹͤΑ w จࣈྻϦςϥϧΛ࣮૷ͤΑ

՝୊ w XIJMFจΛ࣮૷ͤΑ w CSFBLจͱDPOUJOVFจΛ࣮૷ͤΑ

՝୊ w ϩʔΧϧม਺ͷࢀরͱ୅ೖΛ࣮૷ͤΑ w 3FTPMWF/PEFͷOWBSJBCMFʹ͸7BSJBCMFΦϒδΣΫτ͕ೖ͍ͬͯͯɺͦͷ 7BSJBCMFΦϒδΣΫτ͔Β͸OWBSJBCMFJOEFYͰϩʔΧϧม਺*%͕औΕΔ

՝୊ w ޙஔΠϯΫϦϝϯτʢJ ʣΛ࣮૷ͤΑ

՝୊ w ҎԼͷΦϒδΣΫτࢦ޲ػೳΛ࣮૷ͤΑ w OFXࣜ w ϓϩύςΟͷಡΈॻ͖ w PCKQSPQܗ͚ࣜͩͰΑ͍ɻPCK<bQSPQ`>͸ෆཁʢจࣈྻϦςϥϧΛ࣮૷ ͍ͯ͠ͳ͍ͱҙຯͳ͍ͨΊʣ
w ϝιουݺͼग़͠ w ϝιουఆٛ͸͢Ͱʹఆٛ͞Ε͍ͯΔؔ਺ΛϓϩύςΟʹηοτ͢Δ ͜ͱͰ୅ସ͢ΔʢԼهࢀরʣͷͰɺݺͼग़͚ͩ͠ͰΑ͍  GVODUJPOPCK@N \SFUVSO^  PCKNPCK@N

՝୊ w ഑ྻϦςϥϧΛ࣮૷ͤΑ

࠷ऴ՝୊ w ແ໊ؔ਺Λ࣮૷ͤΑ w ͜ͷ՝୊ʹݶΓ$PEF(FOFSBUPSҎ֎ͷίʔυมߋ͕ඞཁͳՄೳੑ͕͋Δ

Cookpad 2016 Summer Intern: Programming Paradigm

Cookpad 2016 Summer Intern: Programming Paradigm

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