Kotlinで簡単なDSLを作ってみる

,PUMJOͰ؆୯ͳ%4-࡞ͬͯΈΔ ٶ㟒ॠ

໨࣍ w %4-ͱ͸Կ͔ w ,PUMJO͕%4-ʹ޲͍͍ͯΔཧ༝ w ؆୯ͳ%4-ͷ࣮૷ྫ w ·ͱΊ

ࣗݾ঺հ ໊લٶ㟒ॠ ॴଐαΠϘ΢ζ"OESPJEΤϯδχΞ ࠷ۙษڧ͍ͯ͠Δ͜ͱ3VTUɺ5ZQF4DSJQU झຯΞχϝɺອըɺΧϥΦέ

%4-ͱ͸Կ͔ʁ %4-ͱ͸ɺ%PNBJO4QFDJ fi D-BOHVBHFͷུͰɺ ௚༁͢ΔͱɺυϝΠϯݻ༗ݴޠͰ͢ɻ ಛఆͷ໰୊ྖҬΛޮ཰తʹղܾ͢ΔͨΊʹઃܭ͞Ε·͢ɻ %4-ʹΑͬͯɺυϝΠϯͷઐ໳ݴޠ΍ߏ଄Λͦͷ··ίʔυʹ൓өͰ͖ΔͷͰɺ Մಡੑ͕ߴ·Γ·͢ɻ

,PUMJO%4- CVJMEHSBEMFLUT͸࣮͸%4-ɻ BOESPJE\ OBNFTQBDFDPNTIVONLPUMJO@WBMJEBUPS DPNQJMF4EL ^ GVOPSHHSBEMFBQJ1SPKFDUABOESPJEA DPO fi HVSF
"DUJPODPNBOESPJECVJMEHSBEMF-JCSBSZ&YUFOTJPO 6OJU UIJTBTPSHHSBEMFBQJQMVHJOT&YUFOTJPO"XBSF FYUFOTJPOTDPO fi HVSF BOESPJE DPO fi HVSF

,PUMJO͕%4-ʹ޲͍͍ͯΔཧ༝

ߴ֊ؔ਺ͱϥϜμࣜ GVOCVJME4USJOH CVJMEFS"DUJPO4USJOH#VJMEFS 6OJU 4USJOH\ WBMTC4USJOH#VJMEFS TCCVJMEFS"DUJPO SFUVSOTCUP4USJOH
^ WBMTCVJME4USJOH\ BQQFOE )FMMP BQQFOE 8PSME ^

֦ுؔ਺ GVO4USJOH#VJMEFSCPME CMPDL4USJOH#VJMEFS 6OJU \ BQQFOE C CMPDL
BQQFOE C ^ WBMTCVJME4USJOH\ CPME\ BQQFOE )FMMP 8PSME ^ ^

ԋࢉࢠΦʔόʔϩʔυ PQFSBUPSGVO*OUUJNFT TUS4USJOH TUSSFQFBU UIJT WBMT )FMMP QSJOUMO T
)FMMP)FMMP)FMMP

؆୯ͳ%4-ͷ࣮૷ྫΛ঺հ

͠Α͏ͱࢥ͚ͬͨͲɺͥΜͥΜࢥ ͍͔ͭͳ͍ɺɺ

$IBU(15 ؆୯ͳ%4-ͷ࣮૷ྫΛ঺հ͍ͨ͠ͷͰ͕͢ɺ ͳΜ͔͍͍ͷͳ͍͔͢ʁ

$IBU(15 7BMJEBUPSͱ͔ɺ͓͢͢ΊͰ͢Α ͓͚·Δ

׬੒ͷΠϝʔδ -PHJOը໘ͷ7BMJEBUPSɻ

࡞Δ෺Ϧετ w 7BMJEBUPS$POUFYUશମͷόϦσʔγϣϯϓϩηεΛ؅ཧ w 'JFME7BMJEBUPS֤ϑΟʔϧυόϦσʔλͷڞ௨ػೳΛఆٛ͢Δ w /VNCFS'JFME7BMJEBUPS਺஋ϑΟʔϧυʹؔ͢ΔόϦσʔγϣϯΛఆٛ͢Δ w 4USJOH'JFME7BMJEBUPSจࣈྻϑΟʔϧυʹؔ͢ΔόϦσʔγϣϯΛఆٛ͢Δ w
7BMJEBUJPO3FTVMUόϦσʔγϣϯ݁ՌͷܕΛఆٛ͢Δ w 7BMJEBUJPO&SSPSόϦσʔγϣϯΤϥʔͷৄࡉΛهड़͢Δ

EBUBDMBTT7BMJEBUJPO&SSPS WBMFSSPS.FTTBHF4USJOH TFBMFEJOUFSGBDF7BMJEBUJPO3FTVMU\ EBUBPCKFDU4VDDFTT7BMJEBUJPO3FTVMU EBUBDMBTT'BJMVSF WBMFSSPST-JTU7BMJEBUJPO&SSPS 7BMJEBUJPO3FTVMU\
DPOTUSVDUPS FSSPS7BMJEBUJPO&SSPS UIJT MJTU0G FSSPS ^ ^ όϦσʔγϣϯͷ݁ՌΛ֨ೲ͢ΔΫϥε

QSJWBUFTFBMFEJOUFSGBDF'JFME7BMJEBUPS\ WBMSVMFT.VUBCMF-JTU 7BMJEBUJPO3FTVMU GVOSVMF FSSPS.FTTBHF4USJOH QSFEJDBUF #PPMFBO \ SVMFTBEE\ JG
QSFEJDBUF \ 7BMJEBUJPO3FTVMU4VDDFTT ^FMTF\ 7BMJEBUJPO3FTVMU'BJMVSF 7BMJEBUJPO&SSPS FSSPS.FTTBHF ^ ^ ^ ^ ֤ϑΟʔϧυόϦσʔλͷڞ௨ػೳΛఆٛ SVMFTʹϥϜμࣜΛ֨ೲ ͜ͷ࣌఺Ͱ͸࣮ߦ͞Εͳ͍ QSFEJDBUF͕ຬͨ͞ΕΕ͹ɺ4VDDFTT ຬͨ͞Εͳ͚Ε͹ɺ'BJMVSF

QSJWBUFTFBMFEJOUFSGBDF'JFME7BMJEBUPS\ WBMSVMFT.VUBCMF-JTU 7BMJEBUJPO3FTVMU GVOWBMJEBUF 7BMJEBUJPO3FTVMU\ WBMSFTVMUT-JTU7BMJEBUJPO3FTVMUSVMFTNBQ\JU ^ WBMFSSPST-JTU7BMJEBUJPO&SSPSSFTVMUT fi MUFS*T*OTUBODF7BMJEBUJPO3FTVMU'BJMVSF
fl BU.BQ\JUFSSPST^ SFUVSOJG FSSPSTJT&NQUZ \ 7BMJEBUJPO3FTVMU4VDDFTT ^FMTF\ 7BMJEBUJPO3FTVMU'BJMVSF FSSPST ^ ^ GVOSVMF FSSPS.FTTBHF4USJOH QSFEJDBUF #PPMFBO \ʜ^ ^ SVMFTʹ֨ೲ͞Εͨ7BMJEBUPSΛ࣮ߦ Ұͭ΋FSSPS͕ͳ͍ͱ͖͸ɺ4VDDFTT ҰͭͰ΋FSSPS͕͋Δͱ͖͸ɺ'BJMVSF

DMBTT4USJOH'JFME7BMJEBUPS QSJWBUFWBMWBMVF4USJOH 'JFME7BMJEBUPS\ DPNQBOJPOPCKFDU\ QSJWBUFWBM&."*-@3&(&9?<B[";@ > !<B[";> aa<B[";>\ ^aUP3FHFY
^ PWFSSJEFWBMSVMFT.VUBCMF-JTU 7BMJEBUJPO3FTVMUNVUBCMF-JTU0G GVOOPU&NQUZ FSSPS.FTTBHF4USJOH \ SVMF FSSPS.FTTBHF \ WBMVFJT/PU&NQUZ ^ ^ GVOFNBJM FSSPS.FTTBHF4USJOH \ SVMF FSSPS.FTTBHF \ WBMVFNBUDIFT &."*-@3&(&9 ^ ^ ^ \^ͷத͕ɺWBMJEBUFͷλΠϛϯάͰ࣮ߦ͞ ΕΔ

DMBTT7BMJEBUPS$POUFYU\ QSJWBUFWBMWBMJEBUPSTNVUBCMF-JTU0G 7BMJEBUJPO3FTVMU GVO fi FME WBMVF4USJOH BDUJPO4USJOH'JFME7BMJEBUPS 6OJU
\ WBMWBMJEBUPS4USJOH'JFME7BMJEBUPS WBMVF BDUJPO WBMJEBUPS WBMJEBUPSTBEE\ WBMJEBUPSWBMJEBUF ^ ^ ^ fi FMEͰɺ7BMJEBUPSΛ௥Ճ

DMBTT7BMJEBUPS$POUFYU\ QSJWBUFWBMWBMJEBUPSTNVUBCMF-JTU0G 7BMJEBUJPO3FTVMU GVOWBMJEBUF BDUJPO7BMJEBUPS$POUFYU 6OJU 7BMJEBUJPO3FTVMU\ BDUJPO
WBMSFTVMUT-JTU7BMJEBUJPO3FTVMUWBMJEBUPSTNBQ\JU ^ WBMFSSPST-JTU7BMJEBUJPO&SSPSSFTVMUT fi MUFS*T*OTUBODF7BMJEBUJPO3FTVMU'BJMVSF fl BU.BQ\JUFSSPST^ SFUVSOJG FSSPSTJT&NQUZ \ 7BMJEBUJPO3FTVMU4VDDFTT ^FMTF\ 7BMJEBUJPO3FTVMU'BJMVSF FSSPST ^ ^ GVO fi FME WBMVF4USJOH BDUJPO4USJOH'JFME7BMJEBUPS 6OJU \ʜ^ ^ WBMJEBUFͰόϦσʔγϣϯΛ࣮ߦ

!$PNQPTBCMF QSJWBUFGVO-PHJO'PSN NPEJ fi FS.PEJ fi FS.PEJ fi FS
\ WBSVTFSOBNFCZSFNFNCFS\NVUBCMF4UBUF0G ^ WBSFNBJMCZSFNFNCFS\NVUBCMF4UBUF0G ^ WBSWBMJEBUJPO&SSPSTCZSFNFNCFS\NVUBCMF4UBUF0G MJTU0G4USJOH ^ #PY NPEJ fi FSNPEJ fi FS fi MM.BY4J[F DPOUFOU"MJHONFOU"MJHONFOU$FOUFS \ $PMVNO WFSUJDBM"SSBOHFNFOU"SSBOHFNFOUTQBDFE#Z EQ IPSJ[POUBM"MJHONFOU"MJHONFOU$FOUFS)PSJ[POUBMMZ \ 0VUMJOFE5FYU'JFME ʜ 0VUMJOFE5FYU'JFME ʜ #VUUPO PO$MJDL\50%0^ \ 5FYU UFYU4VCNJU ^ 6TFS/BNF 1BTTXPSE 4VCNJU#VUUPO

#VUUPO PO$MJDL\ WBMWBMJEBUJPO$POUFYU7BMJEBUPS$POUFYU WBMSFTVMUWBMJEBUJPO$POUFYUWBMJEBUF\ fi FME VTFSOBNF \
OPU&NQUZ 6TFSOBNFJTSFRVJSFE NJO-FOHUI 6TFSOBNFNVTUCFBUMFBTUDIBSBDUFSTMPOH ^ fi FME FNBJM \ OPU&NQUZ &NBJMJTSFRVJSFE FNBJM 1MFBTFFOUFSBWBMJEFNBJMBEESFTT ^ ^ WBMJEBUJPO&SSPSTXIFO SFTVMU \ JT7BMJEBUJPO3FTVMU4VDDFTTFNQUZ-JTU JT7BMJEBUJPO3FTVMU'BJMVSFSFTVMUFSSPSTNBQ\JUFSSPS.FTTBHF^ ^ ^ \ 5FYU UFYU4VCNJU ^

ຊ೔͝঺հͨ͠ίʔυ LPUJMOWBMJEBUPS IUUQTHJUIVCDPNTIVONLPUMJOWBMJEBUPS

͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ

Kotlinで簡単なDSLを作ってみる

Kotlinで簡単なDSLを作ってみる

Shun Miyazaki

Transcript

,PUMJOͰ؆୯ͳ%4-࡞ͬͯΈΔ ٶ㟒ॠ

໨࣍ w %4-ͱ͸Կ͔ w ,PUMJO͕%4-ʹ޲͍͍ͯΔཧ༝ w ؆୯ͳ%4-ͷ࣮૷ྫ w ·ͱΊ

ࣗݾ঺հ ໊લٶ㟒ॠ ॴଐαΠϘ΢ζ"OESPJEΤϯδχΞ ࠷ۙษڧ͍ͯ͠Δ͜ͱ3VTUɺ5ZQF4DSJQU झຯΞχϝɺອըɺΧϥΦέ

%4-ͱ͸Կ͔ʁ %4-ͱ͸ɺ%PNBJO4QFDJ fi D-BOHVBHFͷུͰɺ ௚༁͢ΔͱɺυϝΠϯݻ༗ݴޠͰ͢ɻ ಛఆͷ໰୊ྖҬΛޮ཰తʹղܾ͢ΔͨΊʹઃܭ͞Ε·͢ɻ %4-ʹΑͬͯɺυϝΠϯͷઐ໳ݴޠ΍ߏ଄Λͦͷ··ίʔυʹ൓өͰ͖ΔͷͰɺ Մಡੑ͕ߴ·Γ·͢ɻ

,PUMJO%4- CVJMEHSBEMFLUT͸࣮͸%4-ɻ BOESPJE\ OBNFTQBDFDPNTIVONLPUMJO@WBMJEBUPS DPNQJMF4EL ^ GVOPSHHSBEMFBQJ1SPKFDUABOESPJEA DPO fi HVSF

,PUMJO͕%4-ʹ޲͍͍ͯΔཧ༝

ߴ֊ؔ਺ͱϥϜμࣜ GVOCVJME4USJOH CVJMEFS"DUJPO4USJOH#VJMEFS 6OJU 4USJOH\ WBMTC4USJOH#VJMEFS TCCVJMEFS"DUJPO SFUVSOTCUP4USJOH

֦ுؔ਺ GVO4USJOH#VJMEFSCPME CMPDL4USJOH#VJMEFS 6OJU \ BQQFOE C CMPDL

ԋࢉࢠΦʔόʔϩʔυ PQFSBUPSGVO*OUUJNFT TUS4USJOH TUSSFQFBU UIJT WBMT )FMMP QSJOUMO T

؆୯ͳ%4-ͷ࣮૷ྫΛ঺հ

͠Α͏ͱࢥ͚ͬͨͲɺͥΜͥΜࢥ ͍͔ͭͳ͍ɺɺ

$IBU(15 ؆୯ͳ%4-ͷ࣮૷ྫΛ঺հ͍ͨ͠ͷͰ͕͢ɺ ͳΜ͔͍͍ͷͳ͍͔͢ʁ

$IBU(15 7BMJEBUPSͱ͔ɺ͓͢͢ΊͰ͢Α ͓͚·Δ

׬੒ͷΠϝʔδ -PHJOը໘ͷ7BMJEBUPSɻ

࡞Δ෺Ϧετ w 7BMJEBUPS$POUFYUશମͷόϦσʔγϣϯϓϩηεΛ؅ཧ w 'JFME7BMJEBUPS֤ϑΟʔϧυόϦσʔλͷڞ௨ػೳΛఆٛ͢Δ w /VNCFS'JFME7BMJEBUPS਺஋ϑΟʔϧυʹؔ͢ΔόϦσʔγϣϯΛఆٛ͢Δ w 4USJOH'JFME7BMJEBUPSจࣈྻϑΟʔϧυʹؔ͢ΔόϦσʔγϣϯΛఆٛ͢Δ w

EBUBDMBTT7BMJEBUJPO&SSPS WBMFSSPS.FTTBHF4USJOH TFBMFEJOUFSGBDF7BMJEBUJPO3FTVMU\ EBUBPCKFDU4VDDFTT7BMJEBUJPO3FTVMU EBUBDMBTT'BJMVSF WBMFSSPST-JTU7BMJEBUJPO&SSPS 7BMJEBUJPO3FTVMU\

QSJWBUFTFBMFEJOUFSGBDF'JFME7BMJEBUPS\ WBMSVMFT.VUBCMF-JTU 7BMJEBUJPO3FTVMU GVOSVMF FSSPS.FTTBHF4USJOH QSFEJDBUF #PPMFBO \ SVMFTBEE\ JG

QSJWBUFTFBMFEJOUFSGBDF'JFME7BMJEBUPS\ WBMSVMFT.VUBCMF-JTU 7BMJEBUJPO3FTVMU GVOWBMJEBUF 7BMJEBUJPO3FTVMU\ WBMSFTVMUT-JTU7BMJEBUJPO3FTVMUSVMFTNBQ\JU ^ WBMFSSPST-JTU7BMJEBUJPO&SSPSSFTVMUT fi MUFSTOTUBODF7BMJEBUJPO3FTVMU'BJMVSF

DMBTT4USJOH'JFME7BMJEBUPS QSJWBUFWBMWBMVF4USJOH 'JFME7BMJEBUPS\ DPNQBOJPOPCKFDU\ QSJWBUFWBM&."*-@3&(&9?<B[";@ > !<B[";> aa<B[";>\ ^aUP3FHFY

DMBTT7BMJEBUPS$POUFYU\ QSJWBUFWBMWBMJEBUPSTNVUBCMF-JTU0G 7BMJEBUJPO3FTVMU GVO fi FME WBMVF4USJOH BDUJPO4USJOH'JFME7BMJEBUPS 6OJU

DMBTT7BMJEBUPS$POUFYU\ QSJWBUFWBMWBMJEBUPSTNVUBCMF-JTU0G 7BMJEBUJPO3FTVMU GVOWBMJEBUF BDUJPO7BMJEBUPS$POUFYU 6OJU 7BMJEBUJPO3FTVMU\ BDUJPO

!$PNQPTBCMF QSJWBUFGVO-PHJO'PSN NPEJ fi FS.PEJ fi FS.PEJ fi FS

#VUUPO PO$MJDL\ WBMWBMJEBUJPO$POUFYU7BMJEBUPS$POUFYU WBMSFTVMUWBMJEBUJPO$POUFYUWBMJEBUF\ fi FME VTFSOBNF \

σϞ

ຊ೔͝঺հͨ͠ίʔυ LPUJMOWBMJEBUPS IUUQTHJUIVCDPNTIVONLPUMJOWBMJEBUPS

͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ

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