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PropertyObserverとinoutでやらかした話

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March 23, 2017
Technology
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1

 PropertyObserverとinoutでやらかした話

potatotips #38 slide

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r-plus

March 23, 2017

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Transcript

  1. 1SPQFSUZ0CTFSWFSͱ JOPVUͰ΍Β͔ͨ͠࿩ QPUBUPUJQT !S@QMVT

  2. ۨ৔େथ !S@QMVT  )"/%4-"#*/$

  3. )BOET104

  4. ೥9EBZ

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  7. ϦϦʔε೔ͷ$SBTIঢ়گ

  8. ໌Β͔ʹແݶϧʔϓ

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  10. ແݶϧʔϓίʔυ ॾ৚݅Λຬͨͨ͠ΒUSBOTBDUJPOͷ৘ใΛ <4USJOH"OZ>ʹม׵ͯ͠ૹ৴͢Δॲཧ ม׵ʹ͸0CKFDU.BQQFSͷUP+40/Λར༻

  11. )FBSTU%%0CKFDU.BQQFS

  12. .BQQBCMFϓϩτίϧʹద߹ͤ͞NBQQJOHΛॻ͍͓ͯ͘ͱ *OTUBODFˠUP+40/ɺGSPN+40/ˠJOTUBODF ͷ྆ํ͕ग़དྷΔศརͳϠπ

  13. 0CKFDU.BQQFSಠࣗΦϖϨʔλ 

  14. Ұͭͷهड़ͰUP+40/ GSPN+40/ ͷ྆ํʹରԠͤ͞ΔͨΊʹɺ࣮૷ʹ ͸JOPVU͕ར༻͞Ε͍ͯΔ public func <- <T>(left: inout T,

    right: Map)

  15. JOPVU

  16. $ͷϙΠϯλ౉͠ ͷΑ͏ͳ΋ͷ

  17. ϙΠϯλΛ͍͡Βͳ͚Ε͹ Կ΋ى͖ͳ͍ͩΖ͏

  18. ϙΠϯλΛ͍͡Βͳ͚Ε͹ Կ΋ى͖ͳ͍ͩΖ͏ /P❌

  19. None

  20. ࣮ߦ݁Ռɿ OBNFTFUUPB OBNFTFUUPB

  21. OBNFͷϓϩύςΟΦϒβʔόʔ͸  zBzΛ୅ೖͨ࣌͠ͱ  TPNFͷϝιουऴྃޙ ͷ߹ܭճ࣮ߦ͞ΕΔ

  22. JOPVUΛ࣮ݱ͢ΔͨΊʹ ϝιουऴྃޙʹॻ͖໭͕͠ൃੜ͢Δ

  23. ͭ·Γ0CKFDU.BQQFSͰ ΠϯελϯεΛ+40/ʹม׵͢Δͱ ݩΦϒδΣΫτͷ֤ϓϩύςΟʢϚοϐϯ άର৅ʹͨ͠΋ͷʣͷTFUUFS͕Α͹ΕΔ

  24. ແݶϧʔϓίʔυ  0CKFDU.BQQFSͷ+40/ม׵͕࣮ߦ͞Ε JOPVUʹΑͬͯ஋͸มΘͬͯͳ͍͚ΕͲϓ ϩύςΟʹ୅ೖ͞Ε  0CTFSWBCMFʹγάφϧ͕ඈΜͰ͘Δ ҎԼϧʔϓ

  25. ·ͱΊ ϓϩύςΟͷ0CTFSWFS ʢ4XJGUͷ1SPQFSUZ0CTFSWFS 0CKDͷ,70౳ʣ Ͱߦ͏ॲཧͷهड़Ͱ JOPVUͷϝιουΛར༻͢Δ࣌͸஫ҙ͠·͠ΐ͏ɻ

  26. ͪͳΈʹ IUUQTHJUIVCDPN3FBDUJWF,JU#POECMPCW#POE$PSF&WFOU1SPEVDFSTXJGU- 3Y4XJGUҠߦલʹར༻͍ͯͨ͠ 3FBDUJWF,JU#POE Ͱ͸ɺ0CTFSWFS࣮ߦதͷγάφϧΛΨʔυ͍ͯ͠·ͨ͠

  27. ͓ΘΓɻ