Change your source with AST

For Roppongi.js#4

Transcript

1. "45Λ࢖ͬͨ
   ιʔείʔυฤूͷ࿩ 3PQQPOHJKT
   CZ
   !2VSBNZ
2. গ͠લʹ
   CFUUFSOBNF
   ͱ͍ ͏$-*πʔϧΛͭ͘Γ·ͨ͠ https://github.com/Quramy/better-name
3. ͳͥ࡞ͬͨͷ͔
4. ͳͥ࡞ͬͨͷ͔ w ಛʹ࢓ࣄͰ Ұ౓ॻ͍ͨKTϑΝΠϧͷ৔ॴΛɺޙ͔Βม͑ ͨ͘ͳΔ͜ͱ͕݁ߏ͋Δ
   w FYQPSU͢ΔGVODUJPODMBTT໊͸ࡶʹਖ਼نදݱͰ΋͍͍͚Ͳɺ JNQPSU
   ͷ૬ରύεΛ௚͢ͷ͸ׂͱμϧ͍
   w *%&ʹΑΒͣɺڞ௨ͷಈ࡞͕อূ͞Εͯ΄͍͠
 WJNNFSͳͷͰɺྡͷಉ྅͕εΠεΠ8FC4UPSNͱ͔࢖ͬ ͯΔͷݟΔͱෲཱͭ
5. Ͱ͖ͨ΋ͷ w NWίϚϯυͱେମҰॹɻGSPN'JMF
   ͷύε͕
   UP'JMF΁ҠΔ ͚ͩ
   
   better-name [options] <fromFile> <toFile> w JNQPSUจͷ੔߹ੑΛҠಈલޙͰ୲อͯ͘͠ΕΔ
6. ͜Μͳ͔Μ͡
7. JNQPSUͱ"45 w -5λΠτϧʹ΋͋Δ௨Γɺ͜ͷπʔϧ͸+BWB4DSJQUͷ "45 ந৅ߏจ໦ Λղੳ͍ͯ͠Δ
   w JNQPSU
   
   FYQPSU
   ͸จ๏ͷ੍໿͕ݫ͍͠
 ཪΛฦ͢ͱΊͬͪΌղੳ͠΍͍͢
8. ͙͢࡞Εͦ͏ w ࣮૷ϓϥϯ
   KTKTYͷέʔε
   w CBCZMPO
   Ͱ
   ιʔείʔυΛ"45΁
   QBSTF
   w !CBCFMUSBWFSTF
   Ͱ
   "45 ͷJNQPSUจ Λม׵
   w !CBCFMHFOFSBUF
   Ͱ
   "45͔ΒιʔείʔυΛੜ੒
9. ͪͳ54ͷ৔߹ w ࣮૷ϓϥϯ
   UTUTYͷέʔε
   w UTDSFBUF4PVSDF'JMF
   Ͱ
   ιʔείʔυΛ"45΁
   QBSTF
   w UTUSBOTGPSN
   
   $VTUPN
   5SBOTGPSNFS
   Ͱ
   "45 ͷ JNQPSUจ Λม׵
   w UTDSFBUF1SJOUFS
   Ͱ
   "45͔ΒιʔείʔυΛੜ੒
10. Ұ௨Γ࣮૷ͯ͠ؾͮ͘
11. ͋ΕɺJNQPSUจ͔͠ม׵ͯ͠ͳ͍ͷʹɺ
 ࣮ߦલޙͰEJ⒎ग़ա͗͡ΌͶʜ
    
12. ͓·ΘΓ͞ΜίΠπͰ͢ w ࣮૷ϓϥϯ
    KTKTYͷέʔε
    w CBCZMPO
    Ͱ
    ιʔείʔυΛ"45΁
    QBSTF
    w !CBCFMUSBWFSTF
    Ͱ
    "45 ͷJNQPSUจ Λม׵
    w !CBCFMHFOFSBUF
    Ͱ
    "45͔ΒιʔείʔυΛੜ੒
13. ΍ͬͪ·ͬͨ w ͦ΋ͦ΋
    "45
    
    
    
    ιʔείʔυ͸Մٯม׵͡Όͳ͍
 FH
    ηϛίϩϯ
    Πϯσϯτ
    ετϦϯάϦςϥϧ
    FUD
    w QSFUUJFS͔͚Ε͹͍͍΍ɺͱࢥ͍ͬͯͨ
    
    w ۭߦ͕࡟আ͞Εͯ͠·͏݅͸Ͳ͏͠Α͏΋ͳ͍
    
14. ΍Γ௚͠
    
15. "45ͷमਖ਼Λιʔε΁൓ө͞ ͤΔʹ͸ w !CBCFMHFOFSBUF
    ࢖Θͳ͍
    ࢖͏ʹͯ͠΋ہॴతʹ
    w "45Λղੳͨ͠ޙɺมߋ͍ͨ͠಺༰ͱର৅OPEFͷMPDBUJPO ͔Β
    5FYU$IBOHF
    Λ࡞Γɺιʔείʔυͷจࣈྻʹద༻͞ ͤΔͷ͕ਖ਼ղ
    ʮ"45͔Βੜ੒ʯͰ͸ͳ͘ʮ"45ͷมߋΛద༻ʯʹ͢Δ
16. 5FYU
    $IBOHF w ԫ৭ͷ෦෼͸Ұ੾มߋ͕ͳ͍
    ιʔείʔυͦͷ··
    w มߋ͕ෳ਺ͷ৔߹͸ɺιʔείʔυͷޙΖ͔Βద༻͢Δ import { someFn } from "./target"; export default function main() { someFn(); } import { someFn } from “./new-target”; export default function main() { someFn(); } textChanges = [{ start: 24, end: 32, text: 'new-target' }]  
17. ·ͱΊ w !CBCFMHFOFSBUPS
    ΍
    UT1SJOUFSΛιʔείʔυमਖ਼ͷ໨ తͰ࢖Θͳ͍ɻཚ༻͠ͳ͍
    w 5FYU$IBOHFͷύλʔϯΛ͓֮͑ͯ͘ͱɺͲ͔͜Ͱ໾ʹཱ ͔ͭ΋ʜ
18. 5IBOL
    ZPV