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[tamarubykaigi01]こわくないDSL
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ken3ypa
July 06, 2019
Programming
5
3k
[tamarubykaigi01]こわくないDSL
Tama Ruby会議01にて発表した資料です。
https://tama-rb.github.io/tamarubykaigi01/
ken3ypa
July 06, 2019
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Transcript
͜Θ͘ͳ͍%4- ! L F O Z Q B
ג ࣜ ձ ࣾ ສ ༿ 5B N B 3 V C Z ձ ٞ ͜Θ͘ͳ͍%4- 5BNB3VCZձٞ !LFOZQB
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3VCZྺɺഎ৳ͼ͍͓ͨ͠ࠒ
Έͳ͞Μʂ %4-ɺॻ͍ͯ·͔͢ʁ 3 B J M T 3 B
D L 3 4 Q F D $ B Q Z C B S B
ɾ ͱ ͯ ۙ ͳ ଘ ࡏ
ɾ ຖ ৮ Ε Δ ɾ ͬͱ ͓ ۙ ͮ ͖ ʹ ͳ Γͨ ͍
ͱ͍͏Θ͚Ͱ
%4-ͷιʔείʔυΛ ͔ͨͬͺ͔͠ΒಡΜͰΈͨ ݟΛڞ༗͠·͢ʂ
ʜͱ͍͏͜ͱ͕ Ͱ͖ͨΒΑ͔ͬͨΜͰ͕͢
None
ɾϝλϓϩΒ͖͠Կ͔ ɾऴΘΒͳ͍ίʔυδϟϯϓ ɾதͷΘ͔Βͳ͍ม
͜Θ͍
ͷ Ͱ
̎ ͭ ͷ Ξ ϓϩ ʔ ν Λ ߟ ͑
ͨ
ࠊ Λ ਾ ͑ͯ ಡ ΜͰΈ Δ
θ ϩ ϕ ʔε Ͱ ߟ ͑ͯ Έ
Δ
θ ϩ ϕ ʔε Ͱ ߟ ͑ͯ Έ Δ
ຊͷඪ
͜ Μ ͳ ͔Μ ͡ ͷ ܗ Λ ͠ ͨ
% 4 - Λ ࡞ Γ ͭ ͭ
࡞ Δ ࠷ த ʹ ग़ ͯ ͘ Δ
͜ ͷ ล ͷ ٕ ज़ త τ ϐο Ϋ Λ ֶ ΜͰ ͍ ͖ ͨ ͍
ͦ͏͢Δͱ ɾ؆୯ͳ%4-࡞ΕΔ͠ ɾ͍͠%4-গ͠ಡΊΔ͔ʁ
࡞Γͳ͕ΒֶΜͰ͍͖·͠ΐ͏ʂ
·ͣҰ൪γϯϓϧͳܗͰ ࣮ͯ͠ΈΑ͏ʂ
w εςοϓɿରͱͳΔυϝΠϯΛݟ͚ͭΔ w εςοϓɿυϝΠϯʹີʹؔ࿈͢Δ୯ޠΛநग़ w εςοϓɿΠϯλʔϑΣʔεΛߟ͑Δ w εςοϓɿ࣮ʂ ࣮खॱ Ͱૣ࣮ͯ͠Έ·͠ΐ
ͦ͏͍͏લஔ͖ཉ͘͠ͳ͍
%4-ͷ֓ཁ
%4-ͷ֓ཁ ᶃυϝΠϯ ᶄ୯ޠ ᶅΠϯλʔϑΣʔε ᶆ%4-ͷ࣮
w ⁞υϝΠϯʜ%4-Ͱղܾ͍ͨ͠ྖҬ w ୯ޠʜυϝΠϯ༝དྷͷͷͰΠϯλʔϑΣʔεͷߏจ ʹΘΕΔ w ΠϯλʔϑΣʔεʜ%4-Λॻ͘ਓ͕ɺ࣮ࡍʹ৮ΕΔߏจɻ ·ΔͰจষͷΑ͏ʹಡΉ͜ͱ͕Ͱ͖Δ w %4-ͷ࣮ʜΠϯλʔϑΣʔεͷߏจΛ࣮ݱ͘͢ॻ͔
Ε͍ͯΔ࣮ɻ3VCZͩͱϝλϓϩ͕Α͘ΘΕΔ ༻ޠઆ໌ Ͱૣ࣮ͯ͠Έ·͠ΐ ͦ͏͍͏લஔ͖ཉ͘͠ͳ͍
ා ͍ Ұ ྫ εςοϓɿ ରͱͳΔυϝΠϯΛݟ͚ͭΔ
ා ͍ Ұ ྫ ࠓճ
λ ε Ϋ ཧ w ͷจ຺Ͱߟ͑ΔͱɺԿΛ͍ͯ͠ΔͷͩΖ͏͔
λ ε Ϋ ཧ w ͷจ຺Ͱߟ͑ΔͱɺԿΛ͍ͯ͠ΔͷͩΖ͏ w λεΫҰཡΛॻ͍ͯɺ w
ϑΥʔϚοτͤͨ͞ܗͰग़ྗ͍ͨ͠
εςοϓɿ υϝΠϯʹؔ࿈͢Δ୯ޠΛݟ͚ͭΔ
λεΫཧʹؔ͢Δ୯ޠΛ୳͢
OBNF λεΫ໊ EFTDSJQUJPO આ໌ EVF@PO ظݶ QSJPSJUZ ༏ઌॱҐ 5BTL λεΫ
εςοϓɿ ΠϯλʔϑΣʔεΛߟ͑Δ
ཁ݅ɿ ɾυϝΠϯͷࣝΛ࣋ͬͨਓ͕ ɾڞ௨͢Δ୯ޠΛͬͯ ɾ3VCZͷ͕ࣝͳͯ͘ૢ࡞Ͱ͖ͦ͏ ͩͱ͏Ε͍͠ʂ
ͨ ͱ ͑ ͜ Μ ͳ ͔Μ ͡ DSFBUF@UBTL@MJTUࠓͷλεΫϦετEP
BEE@UBTLEP OBNFλεΫ" EFTDSJQUJPOొ͍ͨ͠λεΫΛೖྗ͠·͢ EVF@POb QSJPSJUZߴ FOE FOE
εςοϓɿ ࣮
ߟ͑ͨΠϯλʔϑΣʔεͰ ॲཧΛݺͼग़ͤΔΑ͏Λ࣮͍ͯ͘͠
DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE 5 0 1 Ϩ
ϕ ϧ ʹ Π ϯλ ʔϑΣʔε Λ ॻ ͖ ⁞ࣄલʹߟ͑ͨ γάωνϟΛॻ͘
DSFBUF@UBTL@MJTU lࠓͷλεΫz EP BEE@UBTLEP OBNF l%4-࡞z EFTDSJQUJPO l͕ΜΔͧz
FOE FOE ׅ ހ Λ ͭ ͚ ͳ ͍ ͷ ͕ ί π 10*/5 3VCZׅހΛলུग़དྷΔ
EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP ʜ
FOE FOE ̍ ߦ ͷ ϝ ιο υ Λ ॻ ͍ͯ ͍ ͘ DSFBUF@UBTL@MJTU ϝιουՃ
EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP
FOE FOE Ҿ Λ ड ͚ औ Ε Δ Α ͏ ʹ ͳͬ ͨ DSFBUF@UBTL@MJTU ϝιουՃ ୈҰҾɹจࣈྻ ୈೋҾɹϒϩοΫ
EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP
FOE FOE Μ ʁ DSFBUF@UBTL@MJTU ϝιουՃ ୈҰҾɹจࣈྻ ୈೋҾɹϒϩοΫ
ZJFMEJGCMPDL@HJWFO ͦΕʹୈೋҾͲ͜ʁ
CMPDL@HJWFO EFGDSFBUF@UBTL@MJTU FOE ί ϯ ς Ωε τ ʹ
ϒϩ ο Ϋ ͕ ͬͯ ͖ͯ ͍ͨ Β ɺ U S V F Λ ฦ ͢
ZJFMEJGCMPDL@HJWFO EFGDSFBUF@UBTL@MJTU FOE Ͱ ɺ ϒϩ ο Ϋ
Ͳ͜ ʹ ʁ
ZJFME
CMPDLDBMMJGCMPDL@HJWFO ͜ Ε ͱ ॲ ཧ ͕ Ұ ॹ EFGDSFBUF@UBTL@MJTU
BUUS@UJUMF CMPDL FOE
ZJFMEJGCMPDL@HJWFO EFGDSFBUF@UBTL@MJTU BUUS@UJUMF CMPDL FOE ҉తʹҾʹCMPDLΛͱͬͯDBMM͍ͯ͠Δ
ZJFMEJGCMPDL@HJWFO EFGDSFBUF@UBTL@MJTU BUUS@UJUMF FOE ͍͢͝ฆΒΘ͍͠
ZJFMEJGCMPDL@HJWFO EFGDSFBUF@UBTL@MJTU BUUS@UJUMF FOE Ίͯ΄͍͠
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO
FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ϒϩοΫͰݺͼग़͢ ϝιουΛՃ ZJFMEJGCMPDL@HJWFO Ͱ ϒϩοΫͷ खଓ͖Λॱ࣮࣍ߦ
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO
FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ϒϩοΫͰݺͼग़͢ ϝιουΛՃ BEE@UBTLϝιουՃ͠ ͞ΒʹϒϩοΫΛݺͼग़͢
EFGOBNF BUUS@OBNF QVUTBUUS@OBNF FOE EFGEFTDSJQUJPO BUUS@EFTDSJQUJPO QVUTBUUS@EFTDSJQUJPO FOE
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE OBNFϝιουͱ EFTDSJQUJPOϝιου Ճͯ͋͛ͯ͠
EFGOBNF BUUS@OBNF QVUTBUUS@OBNF FOE EFGEFTDSJQUJPO BUUS@EFTDSJQUJPO QVUTBUUS@EFTDSJQUJPO FOE
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ࣮ߦ͢Δͱ ॲཧ͕ݺΕΔ ࣮ߦ݁Ռ ࠓͷλεΫ %4-࡞ ͕ΜΔͧ
جຊಈ࡞
/&9545&1 ϩδοΫͷӅณ
EFGOBNF BUUS@OBNF QVUTBUUS@OBNF FOE EFGEFTDSJQUJPO BUUS@EFTDSJQUJPO QVUTBUUS@EFTDSJQUJPO FOE
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ͜ ͷ ล ར ༻ ऀ ʹ Ӆ ͯ͠ ͓ ͖ ͨ ͍
EFGOBNF BUUS@OBNF QVUTBUUS@OBNF FOE EFGEFTDSJQUJPO BUUS@EFTDSJQUJPO QVUTBUUS@EFTDSJQUJPO FOE
EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ·ͣ ͜ ͬͪ ͔ Β
DMBTT5BTL EFGOBNF BUUS@OBNF QVUTBUUS@OBNF FOE EFGEFTDSJQUJPO BUUS@EFTDSJQUJPO QVUTBUUS@EFTDSJQUJPO
FOE EFGBEE@UBTL ZJFMEJGCMPDL@HJWFO FOE FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF ZJFMEJGCMPDL@HJWFO FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE Կ ߟ ͑ͣ ʹ Ϋ ϥε Ͱ ғ ͏ ͱ
VOEFGJOFENFUIPEABEE@UBTL`GPSNBJO0CKFDU /P.FUIPE&SSPS
NBJOBEE@UBTL /P.FUIPE&SSPS
Ϩ γ ʔό ʹ ͕ ͋ Δ ͷ
Ͱ ಈ ͘ ܗ ʹ म ਖ਼ 5BTLOFXBEE@UBTLEP 5BTLOFXOBNFlొ͢Δz 5BTLOFXEFTDSJQUJPOlొͨ͠z FOE
Ͱ γά χ νϟ Λ ่ ͢ͱ ຊ
స ʜ 5BTLOFXBEE@UBTLEP 5BTLOFXOBNFlొ͢Δz 5BTLOFXEFTDSJQUJPOlొͨ͠z FOE
ͦ͜Ͱ ศརͳͷ͕
JOTUBODF@FWBM
JOTUBODF@FWBM Ϩγʔό ʹऔͬͨ Πϯελϯεͷ ίϯςΩετͰ \ϒϩοΫ^ ʹऔͬͨ ॲཧΛ࣮ߦͰ͖Δ
JOTUBODF@FWBM ஔ ͖ ͑ͯ Έ Δ ͱ 5BTLOFX EP
OBNFlొ͢Δz EFTDSJQUJPOlొͨ͠z FOE
OBNFlλεΫ໊z EFTDSJQUJPOlઆ໌z ڍಈ͜ΕͱҰॹʹͳΔ 5BTLOFX 5BTLOFX
ϒϩ ο Ϋ Φ ϒ δΣ Ϋ τ Ͱ
ͳ ͍ ͷ Ͱ ͦ ͷ · ·Ͱ ͤ ͳ ͍ EP OBNFlొ͢Δz EFTDSJQUJPOlొͨ͠z FOE
ͳͷͰ
JOTUBODF@FWBM 1SPDΦϒδΣΫτʹ͢Δ 5BTLOFX CMPDL
DMBTT5BTL EFGOBNF OBNF QOBNF FOE EFGEFTDSJQUJPO EFTDSJQUJPO QEFTDSJQUJPO
FOE EFGBEE@UBTL CMPDL 5BTLOFXJOTUBODF@FWBM CMPDL FOE FOE EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF 5BTLJOTUBODF@FWBM CMPDL FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ࠓͷλεΫ %4-࡞ ͕ΜΔͧ
FWBM JOTUBODF@FWBM DMBTT@FWBM NPEVMF@FWBM FWBM%4-Ͱසग़
SFRVJSFbUBTLSC` EFGDSFBUF@UBTL@MJTU BUUS@UJUMF QVUTBUUS@UJUMF 5BTLJOTUBODF@FWBM CMPDL FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP
BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ࣍ D S F B U F @ U B T L @ M J T U Λ · ͱ Ί ͨ ͍
SFRVJSFbUBTLSC` NPEVMF5BTL-JTU#VJMEFS EFGDSFBUF@UBTL@MJTU UJUMF CMPDL QVUTUJUMF 5BTLOFXJOTUBODF@FWBM CMPDL JGCMPDL@HJWFO
FOE FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE Ϟ δϡʔϧ ʹ Γ ग़ ͯ͠ ͋ ͛Δ ͱ Α ͞ ͦ ͏
501ϨϕϧʹϞδϡʔϧͷϝιουΛ ಡΈࠐ·ͤΔʹͲ͏ͨ͠Βʁ
ઌʹ͚݁ͩग़͢ͱ
SFRVJSFbUBTLSC` FYUFOE5BTL-JTU#VJMEFS DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE . P
E V M F Λ F Y U F O E ࠓͷλεΫ %4-࡞ ͕ΜΔͧ
SFRVJSFbUBTLSC` FYUFOE5BTL-JTU#VJMEFS DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ͢ ͬ
͖ Γ ʂ Ͱ ʜ ࠓͷλεΫ %4-࡞ ͕ΜΔͧ
ɹFYUFOEʁ
ҾͰࢦఆͨ͠ϞδϡʔϧͷΠϯελϯεϝιουΛ TFMGͷಛҟϝιουͱͯ͠Ճ
ҾͰࢦఆͨ͠ϞδϡʔϧͷΠϯελϯεϝιουΛ TFMGͷಛҟϝιουͱͯ͠Ճ
ҾͰࢦఆͨ͠ϞδϡʔϧͷΠϯελϯεϝιουΛ TFMGͷಛҟϝιουͱͯ͠Ճ NPEVMF5BTL-JTU#VJMEFS EFGDSFBUF@UBTL@MJTU UJUMF CMPDL QVUTUJUMF 5BTLOFXJOTUBODF@FWBM CMPDL
FOE FOE ΦϨΦϨʂ
ҾͰࢦఆͨ͠ϞδϡʔϧͷΠϯελϯεϝιουΛ TFMGͷಛҟϝιουͱͯ͠Ճ
TFMG
ݱࡏͷΦϒδΣΫτΛද͢ ϑΝΠϧͷτοϓϨϕϧʹ͓͍ͯ௨শNBJOͱݺΕΔ ಛผͳ0CKFDUΦϒδΣΫτΛࢀর͠·͢ɻ TFMG
QTFMGNBJO QTFMGDMBTT0CKFDU QTFMGPCKFDU@JE T F M G 0 C
K F D U Ϋ ϥε ͷ Π ϯε λ ϯε
ͭ·ΓΠϝʔδͱͯ͠ NBJO0CKFDUOFX
ͳͷͰ 0CKFDUOFXDSFBUF@UBTL@MJTU ͱ͍͏ܗͰݺͼग़ͤΕ 501ϨϕϧͰݺͼग़ͤͦ͏
ύοͱࢥ͍͍࣮ͭͨ
NPEVMF5BTL-JTU#VJMEFS EFGDSFBUF@UBTL@MJTU FOE FOE DMBTT0CKFDU JODMVEF5BTL-JTU#VJMEFS FOE 0 C K
F D U Ϋ ϥε Λ Φ ʔϓ ϯ ͯ͠ɺ Ϟ δϡʔϧ Λ J O D M V E F
SFRVJSFbUBTLSC` NPEVMF5BTL-JTU#VJMEFS EFGDSFBUF@UBTL@MJTU UJUMF CMPDL ʜ FOE FOE DMBTT0CKFDU
JODMVEF5BTL-JTU#VJMEFS FOE DSFBUF@UBTL@MJTUlࠓͷλεΫzEP BEE@UBTLEP OBNFl%4-࡞z EFTDSJQUJPOl͕ΜΔͧz FOE FOE ͍ ͚ ·͠ ͨ ࠓͷλεΫ %4-࡞ ͕ΜΔͧ
Ͱ ɺ ͜ Ε ͩ ͱ Ө ڹ ൣ
ғ ͕ ਵ େ ͖ ͍ ͠ ͏ ͪ ΐͬͱ ε ο Ω Ϧ ॻ ͖ ͨ ͍Ͱ ͢ Ͷ
ͦ͜Ͱ ศརͳͷ͕
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