Optional(2018)年...その後

3f4e0340909015791f1712c52b116da7?s=47 Hideaki Tamai
July 26, 2018
Technology
3
610

 Optional(2018)年...その後

3f4e0340909015791f1712c52b116da7?s=128

Hideaki Tamai

July 26, 2018
Tweet

More Decks by Hideaki Tamai

See All by Hideaki Tamai
3f4e0340909015791f1712c52b116da7?s=48 tamadon
3
540
3f4e0340909015791f1712c52b116da7?s=48 tamadon
3
3.8k
3f4e0340909015791f1712c52b116da7?s=48 tamadon
1
1.4k
3f4e0340909015791f1712c52b116da7?s=48 tamadon
5
2k
3f4e0340909015791f1712c52b116da7?s=48 tamadon
0
930
3f4e0340909015791f1712c52b116da7?s=48 tamadon
0
1k

Other Decks in Technology

See All in Technology
Ea9506ab742ba01d1bea53af6f5649b7?s=48 tsuemura
24
13k
20451295e0cb4dce2b2805b2a61cd92d?s=48 tnk4on
6
830
53850955f15249a1a9dc49df6113e400?s=48 line_developers
0
130
C5e26822fb2aa64410b50eac63ef7d84?s=48 fill9120
1
220
F098812e012aee9cadc37e398c193d1c?s=48 tsukaman
1
150
9ea422a61c1a69c888786830eee3dbe6?s=48 osonoi
0
130
Ad22fcf5773b906c08330f4d57242212?s=48 inductor
3
700
Ecad9d801d79f6c6e5df93094690685e?s=48 sinsoku
6
860
6eecc52120fba9d87d982684211182ec?s=48 mochico
0
110
84cf8e2803e8ee2f48a2db6493eb749f?s=48 takanariko
5
480
A4d1023b1de7890c67a083d14573882d?s=48 ktgrstsh
0
190
88f4e84b94fe07cddbd9e6479d689192?s=48 soudai
0
160

Featured

See All Featured
06f8b41980eb4c577fa40c41d5030c19?s=48 keathley
12
420
5f83ef806155b403c3393160ce51f955?s=48 jlugia
215
16k
Ef32e0b1ac5082450dc8c1fca3a26b5c?s=48 cherdarchuk
65
250k
1519587b1a0febb658c36c94f6272b0d?s=48 roundedbygravity
84
7.6k
C620790ae5bf5b50c245b2e0ef95f338?s=48 deanohume
293
27k
E6c6e133e74c3b83f04d2861deaa1c20?s=48 searls
202
35k
32de0bd2ba869609d26fd052a4622778?s=48 cromwellryan
99
5.7k
5f50f94346fbcb23706f0707169317a4?s=48 aarron
253
36k
Be9caeb9d4ef9944d151af909063ed6e?s=48 samlambert
236
9.7k
7c8469ee8c9e594c65c59b919626c08d?s=48 scottboms
250
11k
39488f9d172ab92fd352f2cd7b73258d?s=48 mza
80
3.9k
1f74b13f1e5c6c69cb5d7fbaabb1e2cb?s=48 sferik
606
53k

Transcript

  1. 0QUJPOBM  ೥ ͦͷޙ )JEFBLJ5BNBJ 1PUBUPUJQT+VMZ 

  2. ࣗݾ঺հ )JEFBLJ5BNBJ ɾ.POFZ'PSXBSE *OD ɾJ04ΞϓϦΤϯδχΞ ɾ͘͘͢͢ʂࢠҭͯΤϯδχΞ.FFUVQ UBNBEPO !UBNBEPO

  3. IUUQTNPOFZGPSXBSEDPNFOHJOFFST@CMPHPQUJPOBM 0QUJPOBM  ೥͚͋·͓ͯ͠ΊͰͱ͏͍͟͝·͢

  4. ͜ΕΛػʹXBSOJOHΛ๾໓͢΂͘ ౰ࣾJ04ΤϯδχΞ͕ ෦ॺΛӽ͑ͯऔΓ૊Έ·ͨ͠ ௨ৗͷػೳ։ൃͱฒߦͯ͠໿ϲ݄

  5. Before

  6. ΍ͬͨ͜ͱͦͷ̍ 4XJGU-JOU "VUPDPSSFDU

  7. Πϯσϯτͷௐ੔͚͔ͩͱࢥͬͯͨΒɺ ؆୯ͳwarning͸मਖ਼ͯ͘͠Εͨ func validate(_ input :(hoge: Fuga)) throws -> Void

    { func validate(_ input :(hoge: Fuga)) throws {
  8. None

  9. ΍ͬͨ͜ͱͦͷ̎ γϡοͱ௚ͤͦ͏ͳXBSOJOHΛফ͢

  10. - public final class Hoge: Fuga { + public class

    Hoge: Fuga { - network.request(request) { _ in } + _ = network.request(request) { _ in } ྫʣ͜͏͍͏΍ͭ
  11. None

  12. ͋ͱ͸ͪͪ͘͘஍ಓʹ XBSOJOHΛͭͿ͍ͯͬͨ͠

  13. ਏ͔ͬͨ΍ͭ

  14. Ұ෦ͷϥΠϒϥϦ͕$PDPB1PET ܦ༝͡Όͳ͍ํ๏Ͱಋೖͯ͋͠Δ ʢେ൒͸$PDPB1PETܦ༝ʣ wͲͷόʔδϣϯΛ࢖ͬͯΔ͔෼͔Βͳ͍ͷͰ࠷৽ʹΞο ϓσʔτͨ࣌͠ͷӨڹൣғ͕ݟ͑ͣɺΞοϓσʔτ͠ ͯྑ͍ͷ͔ෆ໌ w͔͠΋Ұ෦ಠ࣮ࣗ૷Λ௥Ճͯ͠࢖ͬͯΔ΍ͭ΋͋Δ

  15. ಠ࣮ࣗ૷Λ௥Ճͯ͠ͳ͍ ϥΠϒϥϦ wϥΠϒϥϦͷόʔδϣϯΛίϛοτϩά͔Βਪଌ ͠ӨڹൣғΛௐࠪ w$PDPB1PETʹҠߦ

  16. ಠ࣮ࣗ૷Λ௥Ճͯ͠Δ ϥΠϒϥϦ w൚༻తͳػೳ௥ՃͩͬͨͷͰɺϥΠϒϥϦΛGPSL͠ ͯຊՈʹQVMMSFRVFTUΛग़ͨ͠ wऔΓࠐ·Εͳ͔ͬͨϥΠϒϥϦ͸GPSLFESFQPTJUPSZ ͷϥΠϒϥϦΛ$PDPB1PETͰΠϯετʔϧ

  17. After

  18. Before

  19. After Ϗϧυʹ͔͔Δ͕࣌ؒϝνϟ୹ॖ͞Εͨ XBSOJOH࡟আ͚ͩͰͳ͘ɺ4XJGUରԠ΍ ίϯύΠϧΦϓγϣϯͷมߋ΋ޮՌ͕͋ͬͨͱࢥΘΕΔ

  20. ࠷ޙͷXBSOJOH ՝ۚͷϨγʔτ͕J04ܗࣜ ˠݱࡏରԠத

  21. XBSOJOHΛ૿΍͞ͳ͍ औΓ૊Έ

  22. Ұྫ ɾϏϧυ࣌ʹ4XJGU-JOU"VUPDPSSFDU࣮ߦ ɾϏϧυʹNTҎ্͔͔͍ͬͯΔॲཧͰXBSOJOH ɾ4JEFSʢNJTTQFMMʣಋೖ ɾ%BOHFSಋೖ

  23. ·ͱΊ w ݹ͔͘Βӡ༻͞Ε͍ͯΔϓϩμΫτͰ΋ؤுͬͯऔΓ૊Ί͹ɺXBSOJOHΛ ΄΅̌ʹग़དྷΔ w Ϗϧυ୹ॖͷऔΓ૊Έ΋ग़དྷͯϏϧυ͕࣌ؒ෼෼·Ͱ୹ॖग़དྷͨ w ෦ॺΛ·͍ͨͰXBSOJOH๾໓ʹऔΓ૊ΜͩͷͰɺࣾ಺ͷJ04ΤϯδχΞ಺Ͱ XBSOJOH΍ϦϑΝΫλϦϯάʹର͢Δҙ͕ࣝߴ·ͬͨ w

    XBSOJOHΛݮΒͯ͠ຬ଍͢ΔͷͰ͸ͳ͘ɺ૿΍͞ͳ͍࢓૊Έͷߏங͕େࣄ

  24. ͝ਗ਼ௌ͋Γ͕ͱ͏͟͝ ͍·ͨ͠