JavaScript AST入門 〜自作Babelプラグインを添えて〜

社内勉強会資料です

Transcript

1. +BWB4DSJQU
   "45ೖ໳ ʙࣗ࡞#BCFMϓϥάΠϯΛఴ͑ͯʙ ࣾ಺ษڧձࢿྉ ೥݄
2. ࣗ࡞#BCFMϓϥάΠϯΛ࡞ͬͯɺ"45ʹֶ͍ͭͯΜͩ࿩
   "45Λ׆༻ͯ͠ɺຊ൪؀ڥͷ)5.-͔Βςετ༻ͷ)5.-ଐੑ EBUBUFTUJE Λ࡟আ͢ΔπʔϧΛ࡞ͬͯΈͨɻ
   ͦͷաఔͰීஈԿؾͳ͘࢖͍ͬͯΔπʔϧͷཪଆ͕গ͠஌ΕͨͷͰڞ༗Ͱ͖Ε͹ͱࢥ͍·͢ɻ ࿩͢͜ͱ
3.  "45ͱ͸
   ؆୯ͳ֓ཁΛઆ໌
    #BCFMͱ͸
   +BWB4DSJQUͷτϥϯεύΠϧͷ࢓૊Έ
    ࣗ࡞#BCFMϓϥάΠϯʹΑΔ"45ૢ࡞ͷ࣮ફ ࿩͢͜ͱ
4. ໨ඪ "45Λ׆༻ͨ͠ίʔυม׵ͷՄೳੑΛײ͡ΒΕΔ͜ͱʂ
5. "45ͱ͸
   ந৅ߏจ໦ʢͪΎ͏͠ΐ͏͜͏ͿΜ͗ɺӳ
   BCTUSBDU
   TZOUBY
   USFFɺ"45ʣ͸ɺ௨ৗͷߏจ໦ʢ۩৅ߏ จ໦͋Δ͍͸ղੳ໦ͱ΋ݴ͏ʣ͔Βɺݴޠͷҙຯʹؔ܎ͳ͍৘ใΛऔΓআ͖ɺҙຯʹؔ܎͋Δ৘ใͷ ΈΛऔΓग़ͨ͠ʢந৅ͨ͠ʣ໦ߏ଄ͷ໦Ͱ͋Δɻ IUUQTKBXJLJQFEJBPSHXJLJ&"#%&#"&"#&&$"
6. "45ͱ͸
   ந৅ߏจ໦ʢͪΎ͏͠ΐ͏͜͏ͿΜ͗ɺӳ
   BCTUSBDU
   TZOUBY
   USFFɺ"45ʣ͸ɺ௨ৗͷߏจ໦ʢ۩৅ߏ จ໦͋Δ͍͸ղੳ໦ͱ΋ݴ͏ʣ͔Βɺݴޠͷҙຯʹؔ܎ͳ͍৘ใΛऔΓআ͖ɺҙຯʹؔ܎͋Δ৘ใͷ ΈΛऔΓग़ͨ͠ʢந৅ͨ͠ʣ໦ߏ଄ͷ໦Ͱ͋Δɻ IUUQTKBXJLJQFEJBPSHXJLJ&"#%&#"&"#&&$" ˠ
   ϓϩάϥϜίʔυΛ໦ߏ଄Ͱදݱͨ͠΋ͷ ˠ
   σʔλߏ଄Λද͢
7. "45ͱ͸
   
8. "45ͱ͸
   
9. "45ੜ੒ͷྲྀΕ
   ࢀߟαΠτɿIUUQTFTQSJNBPSHEFNPQBSTFIUNM
10. ࢀߟαΠτɿIUUQTFTQSJNBPSHEFNPQBSTFIUNM "45ੜ੒ͷྲྀΕ
    
11.  "45ͱ͸
    ؆୯ͳ֓ཁΛઆ໌
     #BCFMͱ͸
    +BWB4DSJQUͷτϥϯεύΠϧͷ࢓૊Έ
     ࣗ࡞#BCFMϓϥάΠϯʹΑΔ"45ૢ࡞ͷ࣮ફ
12. #BCFMͱ͸
    ֦ுߏจΛϒϥ΢βΤϯδϯ͕ཧղͰ͖ΔΑ͏ͳܗࣜʹม׵͢Δ w BTZODBXBJUߏจ
    ˠ
    1SPNJTF
    w Ξϩʔؔ਺
    w +49 Ϟμϯͳ+BWB4DSJQU
    ˠ
    ඪ४తͳ+BWB4DSJQU΁ͷߏจม׵
13. #BCFMͷ࢓૊Έ 
    ϓϩάϥϜίʔυΛ"45ʹม׵͢Δ ม׵ޙ
14. 
    σʔλߏ଄Λม׵ ม׵ޙ 'VODUJPO&YQSFTTJPOʹม׵ #BCFMͷ࢓૊Έ
15. 
    "45ΛϓϩάϥϜίʔυʹ໭͢ ม׵લ ม׵ޙ #BCFMͷ࢓૊Έ
16. 5SBOTGPSNॲཧΛ֦ு͢Δ͜ͱ͕Ͱ͖Δ ˠ
    ඪ४ͷม׵͚ͩͰ͸ͳ͘ɺಠࣗͷϧʔϧΛ௥ՃͰ͖Δ ͜ΕΒ͸
    #BCFM
    ϓϥάΠϯͱͯ͠࡞੒Ͱ͖Δ ඪ४ϓϥάΠϯɿ
    
    +49
    ˠ
    3FBDUDSFBUF&MFNFOU
    
    
    Ξϩʔؔ਺ˠGVODUJPO ࣗ࡞ϓϥάΠϯɿ
    
    ςετଐੑͷࣗಈ࡟আ
    ˡ
    ࠓ೔࡞ͬͨ΋ͷʂ
    
    EFCVHίʔυͷࣗಈ࡟আ #BCFMΛΧελϚΠζ͢Δ
17. ࣗ࡞#BCFMϓϥάΠϯʹΑΔ"45ૢ࡞ͷ࣮ફ
18. ͜ΕΛ࣮ݱ͍ͨ͠
19. ຊ൪؀ڥͷΈಛఆͷ)5.-ଐੑΛ࡟আ͍ͨ͠ ͜ΕΛ࣮ݱ͍ͨ͠
20. ࣮૷಺༰
    
21. ࣮૷಺༰
    
    ଐੑͷ໊લΛऔಘ 
    ࡟আର৅ͳΒ࡟আ 
    +49"UUSJCVUFͱ͍͏ϊʔυʹ๚໰ͨ͠
    
    
    ʢ&45SFFͱ͍͏ඪ४࢓༷Ͱఆٛ͞Εͨϊʔυʣ
22. "45
    &YQMPSFS
    Λ׆༻͠Α͏
    
23. "45Λ׆༻͍ͯ͠Δ਎ۙͳπʔϧ
    IUUQTHJUIVCDPNGBDFCPPLSFBDUCMPCNBJODPNQJMFS QBDLBHFTCBCFMQMVHJOSFBDUDPNQJMFSTSD#BCFM#BCFM1MVHJOUT 3FBDU
    $PNQJMFS 1SFUUJFS IUUQTHJUIVCDPNQSFUUJFSQSFUUJFS
24. ·ͱΊ
    w ։ൃ࣌ͷσόοΫࢧԉ
    w ։ൃ޲͚ͱຊ൪޲͚ʹίʔυΛม׵͢Δ
    w େྔͷιʔείʔυͷҰׅஔ͖׵͑
    w ϦϑΝΫλϦϯάπʔϧ࡞੒ "45ͰͰ͖Δ͜ͱ ˞ιʔείʔυࣗମΛॻ͖׵͍͑ͨ৔߹͸
    UTNPSQIͳͲͷผͷπʔϧ͕ద͍ͯ͠·͢ɻ
25. ࢀߟจݙ
    wॻ੶ɿ'MVFOU
    3FBDU
    wॻ੶ɿ+BWB4DSJQU
    "45ೖ໳ɹιʔεΛղੳɾՃ޻ͯ͠ੜ࢈ੑʹࠩΛ͚ͭΔʂ
    wIUUQTBTUFYQMPSFSOFU
    wIUUQTHJUIVCDPNKBNJFCVJMETCBCFMIBOECPPL
    wIUUQTHJUIVCDPNCBCFMCBCFMCMPCNBJOQBDLBHFTCBCFMQBSTFSBTUTQFDNE
    wIUUQTHJUIVCDPNFTUSFFFTUSFF