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"45Λ࢖ͬͨ ιʔείʔυฤूͷ࿩ 3PQQPOHJKT CZ!2VSBNZ

গ͠લʹCFUUFSOBNFͱ͍ ͏$-*πʔϧΛͭ͘Γ·ͨ͠ https://github.com/Quramy/better-name

ͳͥ࡞ͬͨͷ͔

ͳͥ࡞ͬͨͷ͔ w ಛʹ࢓ࣄͰ Ұ౓ॻ͍ͨKTϑΝΠϧͷ৔ॴΛɺޙ͔Βม͑ ͨ͘ͳΔ͜ͱ͕݁ߏ͋Δ w FYQPSU͢ΔGVODUJPODMBTT໊͸ࡶʹਖ਼نදݱͰ΋͍͍͚Ͳɺ JNQPSUͷ૬ରύεΛ௚͢ͷ͸ׂͱμϧ͍ w *%&ʹΑΒͣɺڞ௨ͷಈ࡞͕อূ͞Εͯ΄͍͠ 
WJNNFSͳͷͰɺྡͷಉ྅͕εΠεΠ8FC4UPSNͱ͔࢖ͬ ͯΔͷݟΔͱෲཱͭ

Ͱ͖ͨ΋ͷ w NWίϚϯυͱେମҰॹɻGSPN'JMFͷύε͕UP'JMF΁ҠΔ ͚ͩ better-name [options] <fromFile> <toFile> w JNQPSUจͷ੔߹ੑΛҠಈલޙͰ୲อͯ͘͠ΕΔ

͜Μͳ͔Μ͡

JNQPSUͱ"45 w -5λΠτϧʹ΋͋Δ௨Γɺ͜ͷπʔϧ͸+BWB4DSJQUͷ "45 ந৅ߏจ໦ Λղੳ͍ͯ͠Δ w JNQPSUFYQPSU͸จ๏ͷ੍໿͕ݫ͍͠  ཪΛฦ͢ͱΊͬͪΌղੳ͠΍͍͢

͙͢࡞Εͦ͏ w ࣮૷ϓϥϯ KTKTYͷέʔε w CBCZMPOͰιʔείʔυΛ"45΁QBSTF w !CBCFMUSBWFSTFͰ"45 ͷJNQPSUจ
Λม׵ w !CBCFMHFOFSBUFͰ"45͔ΒιʔείʔυΛੜ੒

ͪͳ54ͷ৔߹ w ࣮૷ϓϥϯ UTUTYͷέʔε w UTDSFBUF4PVSDF'JMFͰιʔείʔυΛ"45΁QBSTF w UTUSBOTGPSN $VTUPN5SBOTGPSNFSͰ"45
ͷ JNQPSUจ Λม׵ w UTDSFBUF1SJOUFSͰ"45͔ΒιʔείʔυΛੜ੒

Ұ௨Γ࣮૷ͯ͠ؾͮ͘

͋ΕɺJNQPSUจ͔͠ม׵ͯ͠ͳ͍ͷʹɺ  ࣮ߦલޙͰEJ⒎ग़ա͗͡ΌͶʜ

͓·ΘΓ͞ΜίΠπͰ͢ w ࣮૷ϓϥϯ KTKTYͷέʔε w CBCZMPOͰιʔείʔυΛ"45΁QBSTF w !CBCFMUSBWFSTFͰ"45 ͷJNQPSUจ
Λม׵ w !CBCFMHFOFSBUFͰ"45͔ΒιʔείʔυΛੜ੒

΍ͬͪ·ͬͨ w ͦ΋ͦ΋ "45ιʔείʔυ͸Մٯม׵͡Όͳ͍  FHηϛίϩϯ Πϯσϯτ ετϦϯάϦςϥϧ FUD w
QSFUUJFS͔͚Ε͹͍͍΍ɺͱࢥ͍ͬͯͨ w ۭߦ͕࡟আ͞Εͯ͠·͏݅͸Ͳ͏͠Α͏΋ͳ͍

΍Γ௚͠

"45ͷमਖ਼Λιʔε΁൓ө͞ ͤΔʹ͸ w !CBCFMHFOFSBUF࢖Θͳ͍ ࢖͏ʹͯ͠΋ہॴతʹ w "45Λղੳͨ͠ޙɺมߋ͍ͨ͠಺༰ͱର৅OPEFͷMPDBUJPO ͔Β5FYU$IBOHFΛ࡞Γɺιʔείʔυͷจࣈྻʹద༻͞ ͤΔͷ͕ਖ਼ղ
ʮ"45͔Βੜ੒ʯͰ͸ͳ͘ʮ"45ͷมߋΛద༻ʯʹ͢Δ

5FYU$IBOHF w ԫ৭ͷ෦෼͸Ұ੾มߋ͕ͳ͍ ιʔείʔυͦͷ·· w มߋ͕ෳ਺ͷ৔߹͸ɺιʔείʔυͷޙΖ͔Βద༻͢Δ import { someFn
} from "./target"; export default function main() { someFn(); } import { someFn } from “./new-target”; export default function main() { someFn(); } textChanges = [{ start: 24, end: 32, text: 'new-target' }]

·ͱΊ w !CBCFMHFOFSBUPS΍UT1SJOUFSΛιʔείʔυमਖ਼ͷ໨ తͰ࢖Θͳ͍ɻཚ༻͠ͳ͍ w 5FYU$IBOHFͷύλʔϯΛ͓֮͑ͯ͘ͱɺͲ͔͜Ͱ໾ʹཱ ͔ͭ΋ʜ

5IBOLZPV

Change your source with AST

Change your source with AST

Yosuke Kurami

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"45Λ࢖ͬͨ ιʔείʔυฤूͷ࿩ 3PQQPOHJKT CZ!2VSBNZ

গ͠લʹCFUUFSOBNFͱ͍ ͏$-*πʔϧΛͭ͘Γ·ͨ͠ https://github.com/Quramy/better-name

ͳͥ࡞ͬͨͷ͔

ͳͥ࡞ͬͨͷ͔ w ಛʹ࢓ࣄͰ Ұ౓ॻ͍ͨKTϑΝΠϧͷ৔ॴΛɺޙ͔Βม͑ ͨ͘ͳΔ͜ͱ͕݁ߏ͋Δ w FYQPSU͢ΔGVODUJPODMBTT໊͸ࡶʹਖ਼نදݱͰ΋͍͍͚Ͳɺ JNQPSUͷ૬ରύεΛ௚͢ͷ͸ׂͱμϧ͍ w *%&ʹΑΒͣɺڞ௨ͷಈ࡞͕อূ͞Εͯ΄͍͠

Ͱ͖ͨ΋ͷ w NWίϚϯυͱେମҰॹɻGSPN'JMFͷύε͕UP'JMF΁ҠΔ ͚ͩ better-name [options] <fromFile> <toFile> w JNQPSUจͷ੔߹ੑΛҠಈલޙͰ୲อͯ͘͠ΕΔ

͜Μͳ͔Μ͡

JNQPSUͱ"45 w -5λΠτϧʹ΋͋Δ௨Γɺ͜ͷπʔϧ͸+BWB4DSJQUͷ "45 ந৅ߏจ໦ Λղੳ͍ͯ͠Δ w JNQPSUFYQPSU͸จ๏ͷ੍໿͕ݫ͍͠  ཪΛฦ͢ͱΊͬͪΌղੳ͠΍͍͢

͙͢࡞Εͦ͏ w ࣮૷ϓϥϯ KTKTYͷέʔε w CBCZMPOͰιʔείʔυΛ"45΁QBSTF w !CBCFMUSBWFSTFͰ"45 ͷJNQPSUจ

ͪͳ54ͷ৔߹ w ࣮૷ϓϥϯ UTUTYͷέʔε w UTDSFBUF4PVSDF'JMFͰιʔείʔυΛ"45΁QBSTF w UTUSBOTGPSN $VTUPN5SBOTGPSNFSͰ"45

Ұ௨Γ࣮૷ͯ͠ؾͮ͘

͋ΕɺJNQPSUจ͔͠ม׵ͯ͠ͳ͍ͷʹɺ  ࣮ߦલޙͰEJ⒎ग़ա͗͡ΌͶʜ

͓·ΘΓ͞ΜίΠπͰ͢ w ࣮૷ϓϥϯ KTKTYͷέʔε w CBCZMPOͰιʔείʔυΛ"45΁QBSTF w !CBCFMUSBWFSTFͰ"45 ͷJNQPSUจ

΍ͬͪ·ͬͨ w ͦ΋ͦ΋ "45ιʔείʔυ͸Մٯม׵͡Όͳ͍  FHηϛίϩϯ Πϯσϯτ ετϦϯάϦςϥϧ FUD w

΍Γ௚͠

"45ͷमਖ਼Λιʔε΁൓ө͞ ͤΔʹ͸ w !CBCFMHFOFSBUF࢖Θͳ͍ ࢖͏ʹͯ͠΋ہॴతʹ w "45Λղੳͨ͠ޙɺมߋ͍ͨ͠಺༰ͱର৅OPEFͷMPDBUJPO ͔Β5FYU$IBOHFΛ࡞Γɺιʔείʔυͷจࣈྻʹద༻͞ ͤΔͷ͕ਖ਼ղ

5FYU$IBOHF w ԫ৭ͷ෦෼͸Ұ੾มߋ͕ͳ͍ ιʔείʔυͦͷ·· w มߋ͕ෳ਺ͷ৔߹͸ɺιʔείʔυͷޙΖ͔Βద༻͢Δ import { someFn

·ͱΊ w !CBCFMHFOFSBUPS΍UT1SJOUFSΛιʔείʔυमਖ਼ͷ໨ తͰ࢖Θͳ͍ɻཚ༻͠ͳ͍ w 5FYU$IBOHFͷύλʔϯΛ͓֮͑ͯ͘ͱɺͲ͔͜Ͱ໾ʹཱ ͔ͭ΋ʜ

5IBOLZPV