プログラミング言語Rust

Transcript

1. ϓϩάϥϛϯάݴޠ Rust

2. ࣗݾ঺հ • Yusuke Hosonuma • https://github.com/YusukeHosonuma • Qiita΋ͨ·ʹॻ͍ͯΔΑɻ • ϚΠϯυϑϧωε࣮ફதɻ

3. Rustͬͯʁ

4. Rustͬͯʁ • Mozilla͕࡞ͬͨγεςϜϓϩάϥϛϯάݴޠ • ߴ଎ੑɺ҆શੑɺฒߦੑɺʹϑΥʔΧε • C/C++/GoͷΑ͏ʹγϯάϧόΠφϦग़ྗͰ͖Δ • Ϟμϯͳ֓೦ʢؔ਺ܕͱ͔ʣΛऔΓೖΕͯΔ •

   Swift͕ӨڹΛड͚ͨݴޠͰ΋͋Δ

5. ߴ଎ʁ

6. ߴ଎ʁ • C/C++ͷΑ͏ͳθϩΦʔόʔϔουΛ໨ࢦ͢ • GCͳ͠ɺࢀরΧ΢ϯτͳ͠ɺͷϝϞϦ؅ཧ • Ϟμϯͳ֓೦Λαϙʔτͭͭ͠ɺΦʔόʔϔου ͕ݶΓͳ͘ൃੜ͠ͳ͍Α͏ʹߟ͑ΒΕͯΔ • ʮθϩίετந৅Խʯ(zero-cost

   abstractions)

7. ҆શʁ

8. ҆શʁ • C/C++Ͱ͸ϝϞϦؔ࿈ͷόά͕ઈ͑ͳ͍ • ະॳظԽ or ൣғ֎ͷྖҬʹΞΫηεͨ͠Γ • όοϑΝʔΦʔόʔϑϩʔ੬ऑੑͷѱເ •

   RustͰ͸ίϯύΠϧ࣌ʹແޮͳϝϞϦΞΫηε͕ൃ ੜ͠ͳ͍͜ͱΛอূ͢Δ • ੩తܕ෇͚Ͱܕਪ࿦͋Γ

9. ฒߦʁ

10. ฒߦʁ • Ұൠతʹฒߦϓϩάϥϛϯά͸೉͍͠ • ෳ਺ͷεϨου͕ಉ͡σʔλΛಉ࣌ʹಡΈॻ͖ ͠ͳ͍Α͏ʹࡉ৺ͷ஫ҙ͕ඞཁ • ࠶ݱੑͷ௿͍όά΋ੜΈग़͠΍͍͢ • RustͰ͸ίϯύΠϧ࣌ʹσʔλڝ߹Λ๷͙࢓૊Έ

    ͕͋Δ

11. ࣮੷ʁ

12. ࣮੷ʁ • Friends of Rust
 https://www.rust-lang.org/en-US/friends.html
 
 ↑࣮ϓϩμΫτʹRustΛ࢖͍ͬͯΔ૊৫ • Mozilla͸FirefoxͷϝσΟΞύʔβͰར༻


    ˠ 10ԯਓҎ্͕ར༻͍ͯ͠Δͷʹɺ1݅΋Τϥʔ͕ ൃੜ͍ͯ͠ͳ͍ʢΒ͍͠ʣ • Dropbox΍LINEͱ͍ͬͨେޚॴ΋ར༻͍ͯ͠Δ

13. Why Rust ?

14. Why Rust ? • C/C++ͷΑ͏ʹߴ଎ੑ͕ٻΊΒΕΔιϑτ΢ΣΞ ʢOS/υϥΠόͳͲʣʹ޲͍͍ͯΔ • C/C++͸ߴ଎͚ͩͲɺϝϞϦ؅ཧ͸҆શͰ͸ͳ͍͠ɺ ฒߦϓϩάϥϛϯά΋೉͍͠ •

    ݱঢ়ͷʢGoݴޠҎ֎ͷʣϞμϯݴޠ͔ΒݟΔͱػೳ͸ ऑ͍ʢ͖ͼ͠Ίʹݴ͑͹࣌୅஗Εʣ • ͦ͜ͰRustͰ͢Αʂ

15. ͭ·Γʁ

16. ͭ·Γʁ • ϙετC++Λ໨ࢦ͢ݴޠ • ߴ଎ɺ҆શɺฒྻɺʹϑΥʔΧεͨ͠ݴޠ • ࠷େͷڝ߹͸Dݴޠ

17. Hello Rust

18. Hello Rust fn main() {
 println!("Hello, world!"); // This is

    macro
 }

19. ϑΟϘφον਺ྻ

20. ϑΟϘφον਺ྻ fn fib(n: u32) -> u32 { // Function definition


    match n { // Pattern match
 0 => 1,
 1 => 1,
 _ => fib(n - 1) + fib(n - 2), // Recursive call
 } // not need `return`
 }
 
 fn main() {
 let fib5 = fib(5); // local variable (Immutable is default)
 println!("fib(5): {}", fib5); // `{}` is placeholder
 // => 8
 }

21. Cargo(Χϧΰ)

22. Cargo(Χϧΰ) • Rustඪ४ͷϏϧυπʔϧ • ಉ࣌ʹύοέʔδϚωʔδϟͰ΋͋Δ • ͭ·ΓɺϏϧυɺϥΠϒϥϦͷμ΢ϯϩʔυɺ ґଘؔ܎ͷղܾɺΛશ෦΍Δ • ʮધՙʯͱ͍͏ҙຯ͕͋Δ

23. Rustͷ࢝Ίํ

24. Rustͷ࢝Ίํ • $ brew install rust • $ cargo new

    hello --bin • $ cd ./hello • $ cargo run • > Hello, world!

25. Rust Samurai ΁ͷಓ ʻࡶίϥͰѱ͔ͬͨͳ

26. Rust Samurai ΁ͷಓ • ϓϩάϥϛϯάݴޠRustʢ೔ຊޠ༁ʣ
 https://rust-lang-ja.github.io/the-rust- programming-language-ja/1.6/book/ README.html • όʔδϣϯ1.6Ͱͪΐͬͱݹ͍͚Ͳ෼͔Γ΍͍͢

27. Rust Samurai ΁ͷಓ • Rust by Example
 http://rustbyexample.com/index.html • αϯϓϧίʔυΛϕʔεʹֶͯ͠΂·͢ɻͨͩ͠

    ӳޠɻ

28. Rust Samurai ΁ͷಓ • APIϦϑΝϨϯε
 https://doc.rust-lang.org/std/ • ݕࡧػೳ͕ͳ͔ͳ͔༏लͰ͢ɻ

29. Join us?

30. Join us? • StackOverflowʹ͓͍ͯɺ2016೥ͷѪ͞ΕͯΔݴޠϥ ϯΩϯά1ҐΛ֫ಘ͍ͯ͠·͢ɻ • طʹηϧϑϗεςΟϯάʢࣗ਎Ͱࣗ਎ΛίϯύΠϧʣ Λ࣮ݱ͍ͯ͠·͢ɻ • GoݴޠͷΑ͏ʹޙΖ६͕ແͯ͘΋੒௕͖ͯͨ͠ݴޠ

    Ͱ͢ɻ • ࠷ۙʹͳͬͯར༻࣮੷͕֦େ͍ͯ͠·͢ɻ

31. Rust͸͍͍ͧʂ

32. Thanks!