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![#include <iostream>
#include <vector>
#include <string>
int main() {
std::vector<std::string> v;
v.push_back("foo");
auto const &x = v[0];
v.push_back("bar");
// Undefined behavior!
std::cout << x;
}
C++](https://image.slidesharecdn.com/vpjbbqcwrhc9pzqoi11r-signature-97ac0cba55d83fa6f2a2f253a387270677bf11da9177d0b7d555fb911fc34ba2-poli-160526084212/75/Why-Rust-Matthias-Endler-Codemotion-Amsterdam-2016-18-2048.jpg)
![There’s multiple mutable references to the same data
auto const &x = v[0] v was copied to new location](https://image.slidesharecdn.com/vpjbbqcwrhc9pzqoi11r-signature-97ac0cba55d83fa6f2a2f253a387270677bf11da9177d0b7d555fb911fc34ba2-poli-160526084212/75/Why-Rust-Matthias-Endler-Codemotion-Amsterdam-2016-19-2048.jpg)
![fn main() {
let mut v = Vec::new();
v.push("foo");
let mut x = &mut v[0];
v.push("bar");
println!("{}", x)
}
RUST](https://image.slidesharecdn.com/vpjbbqcwrhc9pzqoi11r-signature-97ac0cba55d83fa6f2a2f253a387270677bf11da9177d0b7d555fb911fc34ba2-poli-160526084212/75/Why-Rust-Matthias-Endler-Codemotion-Amsterdam-2016-20-2048.jpg)
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Why Rust? - Matthias Endler - Codemotion Amsterdam 2016
The document discusses the advantages of using Rust, a systems programming language known for its safety, speed, and community support. It compares Rust to other languages like PHP, Python, Go, and C, noting the unique features and challenges of each, particularly Rust's strict ownership model. Additionally, it highlights tools, libraries, and best practices for Rust development, emphasizing the desire for improved debugging, profiling, and code coverage capabilities.
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Why Rust? - Matthias Endler - Codemotion Amsterdam 2016
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- 2. - Düsseldorf, Germany -Backend Engineer at trivago - Website performance team - Worked a lot with Python and PHP - Likes hot chocolate @matthiasendler Matthias Endler mre
- 3.
- 5. System Programming Memory management Errorhandling Static Typing Compiling …
- 6. Rust - Created byGraydon Hoare - Funded by Mozilla - First version: 2010 - Current stable version 1.8 A safe systems language
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- 8. • Provide theright abstractions • Provide awesome tools • Allow making mistakes • Build a helpful community System Programming can be fun!
- 9. Complexity vs Speed •PHP • Python • Golang • Rust • C Faster „Easier“
- 10. RUST: High levelon bare metal
- 11. Where Rust shines Everywhereyou want speed and safety • Operating Systems • Compilers • Emulators Encryption • Databases Numerics • Graphics Programming • Data Pipelines Finance • …
- 12. struct Person { first_name:String, last_name: String, age: i32 } impl Person { pub fn new(first_name: String, last_name: String, age: i32) -> Person { Person { first_name: first_name, last_name: last_name, age: age } } } fn main() { let mut vec = Vec::new(); vec.push(Person::new(String::from("Austin"), String::from("Powers"), 13)); vec.push(Person::new(String::from("Dr."), String::from("Evil"), 30)); for person in &vec { let result = match person.age { 0...18 => "Teenager", 18 => "Old enough to go to war", _ => "Too Old" }; } } RUST
- 13. What I likeabout… • PHP: Package manager, Community • Python: Syntax, Libraries • Golang:Tooling, Documentation, Concurrency • C: Speed, no overhead
- 14. What I likeabout… • PHP: Package manager, Community • Python: Syntax, Libraries • Golang:Tooling, Documentation, Concurrency • C: Speed, no overhead RUST
- 15. What sucks about… •PHP: Syntax (a bit), legacy functions • Python: Package manager, 2 vs 3 • Golang: Error handling, package manager, no generics, Syntax (a bit) • C: Missing package manager, safety
- 16. What sucks about Rust •Syntax (a bit) • „Fighting with the Borrow checker“ • Missing packages (you can help!) • probably more…
- 17. Type safety Type expression Type checking Garbage Collector C unsafeexplicit static No C++ unsafe explicit static No Go safe implicit/explicit static Yes Rust safe implicit/explicit static/dynamic optional
- 18. #include <iostream> #include <vector> #include<string> int main() { std::vector<std::string> v; v.push_back("foo"); auto const &x = v[0]; v.push_back("bar"); // Undefined behavior! std::cout << x; } C++
- 19. There’s multiple mutablereferences to the same data auto const &x = v[0] v was copied to new location
- 20. fn main() { letmut v = Vec::new(); v.push("foo"); let mut x = &mut v[0]; v.push("bar"); println!("{}", x) } RUST
- 21. Rust - No dataraces - No segfaults - No null pointers - No race conditions
- 22. John Carmack, Creatorof Doom and Quake
- 23. fn f(x: Type){...} fn f(x: &Type) {...} fn f(x: &mut Type) {...} Mutable borrow Ownership • Share as you like • read-only • one at a time • read/write Immutable borrow • Total control • read-write
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- 26. Visual Studio Codeusing Rusty Code plugin
- 27. Atom with language-rustplugin
- 28. Some common cargocommands are: build Compile the current project doc Build this project's and its dependencies' documentation new Create a new cargo project run Build and execute src/main.rs test Run the tests bench Run the benchmarks update Update dependencies listed in Cargo.lock search Search registry for crates publish Package and upload this project to the registry install Install a Rust binary Cargo the Rust package manager
- 29. Updating registry `https://github.com/rust-lang/crates.io-index` simple_parallel(0.3.0) Straight-forward functions and types for basic data parallel operations, including parallel maps, for loops and thread pools. forkjoin (2.3.0) A work stealing fork-join parallelism library for Rust arrayfire (3.2.0) ArrayFire is a high performance software library for parallel computing with an easy-to-use API. Its array based function set m… parry (0.1.0) Parallel array processing: deflect performance problems. mpi (0.2.0) Message Passing Interface bindings for Rust specs (0.6.1) Parallel Entity-Component System. Specs is a parallel ECS in Rust. It combines the performance of the beast with the flexibili… collenchyma (0.0.8) high-performance computation on any hardware substudy (0.4.0) Language-learning tools for working with parallel, bilingual subtitles and media files. crossbeam (0.2.9) Support for lock-free data structures, synchronizers, and parallel programming abc (0.2.3) An implementation of Karaboga's Artificial Bee Colony algorithm. ... and 27 crates more (use --limit N to see more) ››› cargo search parallel
- 30. My tool wishlist Unittesting: cargo test Package manager Syntax highlighting Formatting Code completion Debugging Code linter Benchmarking Profiling Code coverage
- 31.
- 32. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting Formatting Code completion Debugging Code linter Benchmarking Profiling Code coverage
- 33. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting Code completion Debugging Code linter Benchmarking Profiling Code coverage
- 34. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion Debugging Code linter Benchmarking Profiling Code coverage
- 35. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging Code linter Benchmarking Profiling Code coverage
- 36. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter Benchmarking Profiling Code coverage
- 37. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter: clippy Benchmarking Profiling Code coverage
- 38. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter: clippy Benchmarking: cargo bench Profiling Code coverage
- 39. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter: clippy Benchmarking: cargo bench Profiling: meh… Code coverage
- 40. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter: clippy Benchmarking: cargo bench Profiling: meh… torch? Code coverage
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- 42. My tool wishlist Unittesting: cargo test Package manager: cargo build/run/install Syntax highlighting: many plugins Formatting: rustfmt Code completion: racer Debugging: rust gdb? Code linter: clippy Benchmarking: cargo bench Profiling: meh… torch? Code coverage: kcov?
- 43. kcov …is acode coverage tester for compiled programs, Python scripts and shell scripts language: rust matrix: fast_finish: true include: - rust: nightly env: FEATURES="--features nightly" sudo: false - rust: nightly env: FEATURES="--features nightly" BENCH=true sudo: false - rust: beta sudo: true after_success: | sudo apt-get install libcurl4-openssl-dev libelf-dev libdw-dev && wget https://github.com/SimonKagstrom/kcov/archive/master.tar.gz && tar xzf master.tar.gz && mkdir kcov-master/build && cd kcov-master/build && cmake .. && make && sudo make install && cd ../.. && kcov --coveralls-id=$TRAVIS_JOB_ID --exclude-pattern=/.cargo target/kcov target/debug/hyper-* Put this into your .travis.yml:
- 44. Summary Lots of workto do But impressive start
- 45. We need tofocus on those… • Debugging • Profiling • Code Coverage
- 46. glium • High-level wrapperaround OpenGL • Avoids all OpenGL errors diesel • A safe, extensible ORM and Query Builder • Operating System written in pure Rust, designed to be modular and secure Redox crossbeam • A collection of lock-less data structures turbine • A high-performance, non-locking, inter-task communication library written in Rust. • Go channels on steroids
- 47. Bonus rr - areverse debugger (http://rr-project.org/) Dash - Offline API Documentation browser for Mac (https://kapeli.com/dash) Crates.io reverse package lookup (https://crates.io/crates/serde/reverse_dependencies)
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