技術領域を広げるためのRustのすゝめ

水戸エンジニア勉強会 #3

Transcript

1. Rust @b7472
2. > whoami
3. > whoami w ͳͬͺ
   !C
   w גࣜձࣾετϥΠϓσύʔτϝϯτ
   w ϑϧϦϞʔτΤϯδχΞϦϯάϚωʔδϟʔ
4. > whoami w ͳͬͺ
   !C
   w גࣜձࣾετϥΠϓσύʔτϝϯτ
   w ϑϧϦϞʔτΤϯδχΞϦϯάϚωʔδϟʔ
   w ࠷ۙೣΛࣂ͍࢝Ί·ͨ͠
7. ೣ༷ͷͨΊʹ࢓ࣄͯ͠·͢
8. Ͱɺຊ୊
9. ࠓ೔͸3VTUͷ෍ڭΛ͠ʹདྷ·ͨ͠☺
11. 3VTU஌ͬͯΔਓ
12. 3VTUॻ͍ͨ͜ͱ͋Δਓ
13. ଟ෼΄ͱΜͲ͍ͳ͍͸ͣ
14. 3VTU
    JT
    Կ
15. 3VTU
    JT w .P[JMMB͕ࢧԉ
    w ʹ"84͕ࢧԉ͢Δͱൃද
    /&8
    w ৽͠ΊͷݴޠʢϓϨΞϧϑΝ൛͕೥ʣ
    w d೥ͷʮ࠷΋Ѫ͞Ε͍ͯΔϓϩάϥϛϯάݴޠʯͰ࿈ଓҐ
    w 4UBDL
    0WFSqPX
    %FWFMPQFS
    4VSWFZ
    w $$ ͷ୅ସ
    w ڧ͍੩తܕ෇͚
    w ($Λ࢖Θͳ͍Ϧιʔε؅ཧ ݁ߏγϏΞͳύϑΥʔϚϯεٻΊΒΕΔͱ͜ΖͰ࠾༻ࣄྫ͋Γ
16. Dz3VTUzBDFBO
17. 3VTUͷ͍͍ͱ͜Ζ
18. 3VTUͷ͍͍ͱ͜Ζ w ωΠςΟϒίϯύΠϧͳͷͰόΠφϦ୯ମͰಈ࡞͢Δ
    w ϚϧνϓϥοτϑΥʔϜ
    w ܕਪ࿦͕ڧྗ
    w υΩϡϝϯτ΍ΤίγεςϜ͕๛෋
    w ߴ଎ʢ$$ ฒʣ
    w ҆શੑ͕ߴ͍
    w جຊతʹϝϞϦϦʔΫ͕ൃੜ͠ͳ͍
    w ʮॴ༗ݖʯͱ͍͏֓೦Ͱ؅ཧ
    w ͵ΔΆ΋ൃੜ͠ͳ͍ όΠφϦ୯ମͰಈ࡞͢Δ͔ΒTFEͱ͔ίϚϯυΛ3VTUͰॻ͍ͯΔਓ݁ߏଟ͍
19. ίʔυαϯϓϧ
20. fn main() { println!("Hello, world!"); } )FMMP
    8PSME
21. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
22. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
23. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
24. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
25. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
26. fn main() { let count: u8 = 10; let message = "Hello"; let mut mut_message = "World"; // message = "Hello!!!"; < -- Error mut_message = "World!!!"; println!("{} {}", message, mut_message); if count == 10 { println!("count is 10"); } let count_message = if count == 10 { "count is 10" } else { "count is not 10" }; println!("{}", count_message); } جૅߏจ
27. fn main() { match division(20, 5) { Ok(result) => println!("Success : {}", result), Err(msg) => println!("Failed : {}", msg), } } fn division(x: u8, y: u8) -> Result<u8, String> { if x == 0 || y == 0 { Err("zero devision".to_string()) } else { Ok(x/y) } } ΤϥʔϋϯυϦϯά
28. fn main() { match division(20, 5) { Ok(result) => println!("Success : {}", result), Err(msg) => println!("Failed : {}", msg), } } fn division(x: u8, y: u8) -> Result<u8, String> { if x == 0 || y == 0 { Err("zero devision".to_string()) } else { Ok(x/y) } } ΤϥʔϋϯυϦϯά
29. fn main() { match division(20, 5) { Ok(result) => println!("Success : {}", result), Err(msg) => println!("Failed : {}", msg), } } fn division(x: u8, y: u8) -> Result<u8, String> { if x == 0 || y == 0 { Err("zero devision".to_string()) } else { Ok(x/y) } } ΤϥʔϋϯυϦϯά
30. fn main() { match division(20, 5) { Ok(result) => println!("Success : {}", result), Err(msg) => println!("Failed : {}", msg), } } fn division(x: u8, y: u8) -> Result<u8, String> { if x == 0 || y == 0 { Err("zero devision".to_string()) } else { Ok(x/y) } } ΤϥʔϋϯυϦϯά
31. struct Point { x: i32, y: i32, } fn main() { let origin = Point { x: 0, y: 0 }; // origin: Point println!("The origin is at ({}, {})", origin.x, origin.y); } ߏ଄ମ
32. struct Circle { x: f64, y: f64, radius: f64, } impl Circle { fn area(&self) -> f64 { std::f64::consts::PI * (self.radius * self.radius) } } τϨΠτ
33. ॴ༗ݖ fn main() { let v = vec![1, 2, 3]; let v2 = v; println!("v[0] is: {}", v[0]); }
34. ॴ༗ݖ fn main() { let v = vec![1, 2, 3]; let v2 = v; println!("v[0] is: {}", v[0]); }
35. ॴ༗ݖ fn main() { let v = vec![1, 2, 3]; let v2 = v; println!("v[0] is: {}", v[0]); }
36. ॴ༗ݖ fn main() { let v = vec![1, 2, 3]; let v2 = v; println!("v[0] is: {}", v[0]); } ͜Ε͚ͩͰ-5ຊͰ͖ΔͷͰׂѪʂʂ
37. 3VTUͷಛ௃
38. 3VTUͷಛ௃ w ݴޠ࢓༷͕͔ͳΓߗ͍
    w ΧδϡΞϧͳԥΓॻ͖ʹ͸޲͔ͳ͍
    w ٯʹݴ͏ͱ3VTUͰॻ͚Ε͹͋Δఔ౓҆શੑ͕୲อ͞Ε͍ͯ Δ
    w ίϯύΠϥ͕Ψν੾Εͯ͘͠Δ
    w ֮͑Δ͜ͱ͕ଟ͍
    w ͿͬͪΌ͚࠷ॳ͸·ͱ΋ʹίʔυ͔͚ͳ͍
    w ΤϯδχΞॳ৺ऀʹ͸ΦεεϝͰ͖ͳ͍
    w ୈҰݴޠͱֶͯ͠Ϳͷ͸͓͢͢Ί͠ͳ͍ɻຊ౰ʹɻ ίϯύΠϥ༷͕పఈతʹมͳͱ͜ΖΛୟ͍ͯ͘Δ
39. ɹͰɺ
40. Rust @b7472
41. Rust @b7472
42. ٕज़ྖҬΛ޿͛Δ
43. 3VTU͸ʮϓϥεΞϧϑΝʯͷ
    ֶͼΛಘΔͷʹ޲͍͍ͯΔͷͰ͸
44. 8FCΤϯδχΞ
    º
    
45. 8FCΤϯδχΞ
    º
    8FC"TTFNCMZ ϑϩϯτք۾Ͱ͸ͪΐ͍ͪΐ͍࿩୊ʹ্͕Δ΍ͭ
46. όοΫΤϯυΤϯδχΞ
    º
    
47. όοΫΤϯυΤϯδχΞ
    º
    ௿ϨΠϠʔ ΤϯδχΞྺ͋Δఔ౓͔͞ͶΔͱʮ௿ϨΠϠʔ΍Βͳ͖Όʯͬͯ୭͠΋ࢥ͏ΑͶ
48. ೖ໳༻υΩϡϝϯτ • Writing an OS in Rust • https://os.phil-opp.com/ • Rust and WebAssembly • https://rustwasm.github.io/docs/book/ • rust-raspi3-OS-tutorials • https://github.com/rust-embedded/rust-raspi3-OS-tutorials ӳޠͷษڧͱࢥͬͯ
49. ٕज़ྖҬΛ޿͛Δ
50. ٕज़ɹɹΛਂΊΔ
51. ಛఆݴޠʹಛԽͨ͠ΤϯδχΞ
    º
    
52. ಛఆݴޠʹಛԽͨ͠ΤϯδχΞ
    º
    ৽͍͠ύϥμΠϜͷܦݧ DMBTTͱ͔ແ͍Μ͢Α
53. ίʔσΟϯάྗΛ͍͋͛ͨΤϯδχΞ
    º
    
54. ίʔσΟϯάྗΛ͍͋͛ͨΤϯδχΞ
    º
    ݫ֨ͳݴޠ࢓༷ͷίʔσΟϯάܦݧ ٱʑʹಈతܕ෇͚ͷεΫϦϓτੈքʹ໭ͬͨΒෆ҆Ͱࢮʹͦ͏ͩͬͨ
55. 3VTUͷಛ௃ w ݴޠ࢓༷͕͔ͳΓߗ͍
    w ΧδϡΞϧͳԥΓॻ͖ʹ͸޲͔ͳ͍
    w ٯʹݴ͏ͱ3VTUͰॻ͚Ε͹͋Δఔ౓҆શੑ͕୲อ͞Ε͍ͯ Δ
    w ίϯύΠϥ͕Ψν੾Εͯ͘͠Δ
    w ֮͑Δ͜ͱ͕ଟ͍
    w ͿͬͪΌ͚࠷ॳ͸·ͱ΋ʹίʔυ͔͚ͳ͍
    w ΤϯδχΞॳ৺ऀʹ͸ΦεεϝͰ͖ͳ͍
    w ୈҰݴޠͱֶͯ͠Ϳͷ͸͓͢͢Ί͠ͳ͍ɻຊ౰ʹɻ 3VTUͰͳ͙Γॻ͖Ͱ͖ΔΑ͏ʹͳͬͨΒڧ͍
56. 3VTUͰ͋Δఔ౓ίʔυΛॻ͚ΔΑ͏ʹͳͬͯ͘Δͱ
    ݩͷݴޠͰίʔυΛॻ࣌͘ͷ໨ઢ͕มΘΓ·͢ ˞ݸਓͷײ૝Ͱ͢
57. औ͖ͬͭͮΒ͍ݴޠͰ͕͢
    ٕज़ྖҬΛ޿͛ΔͨΊʹ͍͔͕Ͱ͠ΐ͏͔
58. ೖ໳༻υΩϡϝϯτ • TRPL (The Rust Programming Language) • https://doc.rust-lang.org/book/ • TRPL Japanese Edition • https://doc.rust-jp.rs/book/second-edition/ ೔ຊޠ༁͋Γ͕ͯ͐
59. 3VTU͸͍͍ͧ
60. Ҏ্ɺ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠