Generative Programming in Swift

Transcript

1. Generative Programming in Swift Presented by @kaneshin 08/20/2016 iOSDC

2. @kaneshin (Shintaro Kaneko) - Principal Engineer / Manager - Gopher,

   Vimmer, Photographer, Mathematician
3. None

4. Unleashing the real power of Core Data with the elegance

   and safety of Swift

5. ੜ੒తϓϩάϥϛϯά Generative Programming

6. ࣮ફ͍ͯ͠Δਓ

7. Generative Programming - Generics struct Something<T> { let with: T

   }

8. Generative Programming - Generics struct Something<T> { let with: T

   }

9. ࣮ફ͍ͯ͠Δਓ

10. ੜ੒తϓϩάϥϛϯά ͱ͸ʁ

11. ੜ੒తϓϩάϥϛϯά: Generative programming δΣωϦοΫͳΫϥεɺϓϩτλΠϓϕʔεɺςϯϓϨʔτɺΞε ϖΫτɺίʔυੜ੒ͳͲͷٕ๏Λ࢖ͬͯιʔείʔυ࡞੒ΛࣗಈԽ ͠ɺϓϩάϥϚͷੜ࢈ੑΛ޲্ͤ͞ΔϓϩάϥϛϯάͷελΠϧͰ ͋Δɻ ιϑτ΢ΣΞίϯϙʔωϯτͳͲͷίʔυ࠶ར༻ͷٕ๏ͱ΋࿈ܞ͠ ͯ࢖༻͞ΕΔɻ

12. ੜ੒తϓϩάϥϛϯά: Generative programming δΣωϦοΫͳΫϥεɺϓϩτλΠϓϕʔεɺςϯϓϨʔτɺΞε ϖΫτɺίʔυੜ੒ͳͲͷٕ๏Λ࢖ͬͯιʔείʔυ࡞੒ΛࣗಈԽ ͠ɺϓϩάϥϚͷੜ࢈ੑΛ޲্ͤ͞ΔϓϩάϥϛϯάͷελΠϧͰ ͋Δɻ ιϑτ΢ΣΞίϯϙʔωϯτͳͲͷίʔυ࠶ར༻ͷٕ๏ͱ΋࿈ܞ͠ ͯ࢖༻͞ΕΔɻ δΣωϦΫεϓϩάϥϛϯά΋

    ੜ੒తϓϩάϥϛϯάͷҰछ

13. Generics Programming

14. "Dynamic, highly parameterized software is harder to understand and build

    than more static software." (Gang of Four 1995:21)

15. Generics are a trade off between programmer time, compilation time,

    and execution time. See https://github.com/golang/proposal/blob/master/design/15292-generics.md

16. ੜ੒తϓϩάϥϛϯά: Generative programming δΣωϦοΫͳΫϥεɺϓϩτλΠϓϕʔεɺςϯϓϨʔτɺΞε ϖΫτɺίʔυੜ੒ͳͲͷٕ๏Λ࢖ͬͯιʔείʔυ࡞੒ΛࣗಈԽ ͠ɺϓϩάϥϚͷੜ࢈ੑΛ޲্ͤ͞ΔϓϩάϥϛϯάͷελΠϧͰ ͋Δɻ ιϑτ΢ΣΞίϯϙʔωϯτͳͲͷίʔυ࠶ར༻ͷٕ๏ͱ΋࿈ܞ͠ ͯ࢖༻͞ΕΔɻ

17. Code Generation

18. JSON Hyper Schema + HTTP Request

19. JSON Hyper Schema Swagger prmd

20. HTTP Request Alamofire APIKit

21. Code Generation • Demo (If enough time to introduce) •

    https://github.com/kaneshin/genkit (golang, ver. 0.0.1) • JSON Hyper Schema - prmd • HTTP Request - APIKit

22. Thank you Credit: NASA Earth Observatory/NOAA NGDC