Cookpad 2016 Summer Intern: Programming Paradigm

ϓϩάϥϛϯάύϥμΠϜ
.JOFSP"PLJ

View Slide

࢒೦ͳ͓஌Βͤ

View Slide

ϓϩάϥϛϯά 
ύϥμΠϜͷ 
࿩ͳΜͯ 
Ұ੾͠·ͤΜ

View Slide

͙͢ʹ໾ʹཱͨͳ͍
͜ͱΛֶͿ

View Slide

͙͢ʹ໾ཱͭ஌ࣝ͸
͙͢໾ʹཱͨͳ͘ͳΔ

View Slide

՝୊આ໌

View Slide

՝୊
+BWB4DSJQUίϯύΠϥΛ࣮૷ͤΑ

View Slide

ʜʜͱ͍͏ͷ͸ 
͕͢͞ʹ࣌ؒతʹແཧͳͷͰɺ

View Slide

՝୊
+BWB4DSJQUίϯύΠϥͷ 
ίʔυδΣωϨʔλʔΛ࣮૷ͤΑ

View Slide

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

View Slide

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

View Slide

ίϯύΠϥͷجૅͱ
+FU4QJEFS

View Slide

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

View Slide

ΠϯλʔϓϦλʔʹΑΔ࣮ߦ
ίϯύΠϥʔʹΑΔ࣮ߦ
ίϯύΠϥʔͱΠϯλϓϦλʔ
ػցޠίʔυ
ιʔείʔυ
ίϯύΠϥʔ
ίϯϐϡʔλʔ
ιʔείʔυ
ධՁث
࣮ߦ
࣮ߦ

View Slide

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

View Slide

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

View Slide

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

View Slide

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.

View Slide

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

View Slide

+FU4QJEFSͷ࣮૷ঢ়گ
ύʔαʔʢQBSTFSʣ
ҙຯղੳثʢTFNBOUJDBOBMZ[FSʣ
ΦϓςΟϚΠβʔʢPQUJNJ[FSʣ
ίʔυδΣωϨʔλʔʢDPEFHFOFSBUPSʣ
+BWB4DSJQUʢKTʣ
4QJEFS.POLFZόΠτίʔυʢKTDʣ
ະ׬੒
ͳ͍

View Slide

+FU4QJEFSͷιʔεπϦʔ
w CJO
w KFUTQJEFSίϯύΠϥʔ
w KTWN7.
w MJCKFUTQJEFS
w DPNQJMFSSCίϯύΠϥυϥΠόʔ
w QBSTFSSCύʔαʔ
w SFTPMWFSSCҙຯղੳث
w [email protected]ίʔυδΣωϨʔλʔ
w BTTFNCMFSSCόΠτίʔυ%4-
w [email protected]+4$ϑΝΠϧ
͜͜Λॻ͘

View Slide

ίϯύΠϧͷաఔ

View Slide

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

View Slide

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

View Slide

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
\
SFUVSOY
^
˝ιʔείʔυʢKTBSJUIKTʣ

View Slide

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

View Slide

"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:
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
\
SFUVSOY
^
˝ιʔείʔυʢKTBSJUIKTʣ
WBMVF
"EE/PEF
/VNCFS/PEF .VMUJQMZ/PEF
3FTPMWF/PEF /VNCFS/PEF
3FUVSO/PEF
WBMVF
MFGU WBMVF
MFGU
WBMVF
WBMVFY
WBMVF

View Slide

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

View Slide

தؒίʔυΛݟΔ
% ./bin/jetspider --dump-sem js/arith.js
- type: FunctionDeclNode
value: f
arguments:
- type: ParameterNode
value: x
function_body:
type: FunctionBodyNode
value:
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
3FUVSO/PEF
WBMVF
MFGU WBMVF
MFGU WBMVF
WBMVF
WBMVFY
WBMVF
WBMVFY
QBSBNY
1BSBNFUFS/PEF
'VODUJPO%FDM/PEF
BSHVNFOUT 7BSJBCMFΦϒδΣΫτ

View Slide

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

View Slide

ϑΣΠζίʔυੜ੒
w ҙຯղੳࡁΈͷσʔλ
Λݩʹɺػցޠ΍7.ίʔ
υΛੜ੒͢Δ
w ࣮ࡍ͸ίʔυ͚ͩͰ͸
ͳ͘ɺγϯϘϧςʔϒϧ
ʢม਺දʣ΍ϦϯΫ৘
ใ΋ؚΉΦϒδΣΫτϑΝ
ΠϧΛੜ੒͢Δ
"EE/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

View Slide

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 ֦ுࢠΛKTDʹม͑ͨϑΝ
Πϧʢ+4$ϑΝΠϧʣ͕ੜ੒
͞ΕΔ

View Slide

+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࢖༻

View Slide

+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

View Slide

+FU4QJEFSͰ
ίʔυΛੜ੒͢Δ

View Slide

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

View Slide

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

View Slide

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

View Slide

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

View Slide

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

View Slide

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

View Slide

7JTJUPSύλʔϯͰ 
"45Λτϥόʔε͢Δ
DMBTT"457JTJUPS
[email protected]/PEF OPEF

WJTJUOPEFWBMVFˡSFUVSOจͷࣜΛτϥόʔε
FOE
[email protected]"EE/PEF OPEF

WJTJUOPEFMFGUˡlzͷࠨଆͷࢬΛτϥόʔε
WJTJUOPEFWBMVFˡlzͷӈଆͷࢬΛτϥόʔε
FOE
[email protected]/VNCFS/PEF OPEF

੔਺Ϧςϥϧʹ͸ͨͲΔࢬ͕ͳ͍ʢMFBGʣ
FOE
FOE
"EE/PEF
/VNCFS/PEF /VNCFS/PEF
3FUVSO/PEF

View Slide

WJTJUϝιουͷ࣮૷
w ଞͷݴޠͩͱେม͕ͩ3VCZͳΒ@@[email protected]@ͰҰൃ
EFGWJTJU OPEF

@@[email protected]@ [email protected]\OPEFDMBTT^z

FOE

View Slide

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

View Slide

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

View Slide

࿅श໰୊
w llԋࢉࢠʢ"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

View Slide

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

View Slide

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"
....

View Slide

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

View Slide

৚݅෼ذͱ
δϟϯϓ໋ྩ

View Slide

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

View Slide

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

View Slide

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

View Slide

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

View Slide

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

!BTNHPUPMPDˡMPDͷҐஔ΁δϟϯϓʢ໭Δʣ

View Slide

+FU4QJEFSͰͷ
ਐߦํ޲΁ͷδϟϯϓ
w ਐߦํ޲΁δϟϯϓ͢Δͱ͖͸ɺ·ͩੜ੒͍ͯ͠ͳ͍ίʔ
υͷҐஔ͕ඞཁʹͳΔ
w !BTNMB[[email protected]Ͱ۩ମతͳ஋ͷຒ·͍ͬͯͳ͍
-PDBUJPOΦϒδΣΫτΛੜ੒͠ɺδϟϯϓ͍ͨ͠ઌͰ
[email protected]ΛݺΜͰ஋ΛຒΊΔ
MPD!BTNMB[[email protected] 
!BTNHPUPMPDˡMPD΁δϟϯϓ 
 
[email protected] MPD
ˡMPDͷҐஔΛఆٛ 
ʢԿ໋͔ྩʣ

View Slide

ؔ਺ͷݺͼग़͠

View Slide

՝୊
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਺

View Slide

՝୊
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

View Slide

࠷దԽͱ
ϓϩάϥϜͷҙຯ

View Slide

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

View Slide

୅දతͳ࣮ߦ଎౓࠷దԽ
w ໋ྩڧ౓ͷ௿ݮ
w JOU EE
ˠPOF G

w YˠY
w ఆ਺ͷίϯύΠϧ࣌ܭࢉʢఆ਺৞ΈࠐΈʣ
w QSJOU J
ˠQSJOU J

w ॲཧͷϧʔϓ֎΁ͷҠಈ
w GPS WBSJJJ
\QSJOU YJ
^ 
ˣ 
WBSOY 
GPS WBSJJJ
\QSJOU OJ
^

View Slide

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

View Slide

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

View Slide

͖ͭͮ͸ຊͰ
ʰΞϯμʔελϯσΟϯάίϯ
ϐϡςʔγϣϯʱ
IUUQXXXBNB[PODPKQEQ
9

View Slide

˞͔͜͜Βઌʹ͸ߨٛ͸
ͳ͍ͷͰ࣮૷͋ΔͷΈ

View Slide

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

View Slide

՝୊
w XIJMFจΛ࣮૷ͤΑ
w CSFBLจͱDPOUJOVFจΛ࣮૷ͤΑ

View Slide

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

View Slide

՝୊
w ޙஔΠϯΫϦϝϯτʢJʣΛ࣮૷ͤΑ

View Slide

՝୊
w ҎԼͷΦϒδΣΫτࢦ޲ػೳΛ࣮૷ͤΑ
w OFXࣜ
w ϓϩύςΟͷಡΈॻ͖
w PCKQSPQܗ͚ࣜͩͰΑ͍ɻPCK͸ෆཁʢจࣈྻϦςϥϧΛ࣮૷
͍ͯ͠ͳ͍ͱҙຯͳ͍ͨΊʣ
w ϝιουݺͼग़͠
w ϝιουఆٛ͸͢Ͱʹఆٛ͞Ε͍ͯΔؔ਺ΛϓϩύςΟʹηοτ͢Δ
͜ͱͰ୅ସ͢ΔʢԼهࢀরʣͷͰɺݺͼग़͚ͩ͠ͰΑ͍ 
[email protected]
\SFUVSO^ 
[email protected]

View Slide

՝୊
w ഑ྻϦςϥϧΛ࣮૷ͤΑ

View Slide

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

View Slide

Cookpad 2016 Summer Intern: Programming Paradigm

Cookpad 2016 Summer Intern: Programming Paradigm

Minero Aoki

More Decks by Minero Aoki

Other Decks in Technology

Featured

Transcript