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![PROGRAM FOR RUST
#[deriving(show)]
enum Direction {
North,
East,
South,
West,
}
fn reverse(dir : Direction)->Direction {
match dir {
North => South,
East => West,
South => North,
West => East,
}
}
fn main() {
println!(“you should head: { }, reverse(North));
}](https://image.slidesharecdn.com/rust-170910132726/75/Rust-16-2048.jpg)
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Rust
- 1. A SAFE SYSTEM PROGRAMMINGLANGUAGE
- 2. AGENDA What isRust ? History of Rust why would Mozilla sponsor rust Goals and features of the rust Rust package manager and commands Rust applications Example program for Rust advantages and disadvantages of the rust
- 3. WHAT IS RUST? Rust is system programming language sponsored by Mozilla Research. The design to be a safe, concurrent, practical language. Supporting Functional and imperative procedural paradigms.
- 4. HISTORY OF RUST Started as a personal by graydon hoare from Mozilla some time around 2008. Officially recognized as Mozilla sponsored project from 2009 and first announced in 2010. First pre-Alpha release in January 2012. Currently at 1.16 (stable). operating system support for Linux , windows , macOS , android , ios etc.
- 5. WHY WOULD MOZILLASPONSOR RUST ? Want rust for next gen-infrastructure (service , iot). Servo is a next generation browser built in rust
- 6. GOALS OF RUST Safety- statically typed with extensive compile time validations. The system in designed to be memory safe and it does not permit null pointers , dangling pointer or data races in safe code.
- 7. SPEED: -Compiled , allows low level access similar to C/C++. For main stream language , I know there different types of programs , architecture. compilation: Language is translated into MIR and then compiled with LLVM RUST MIR LLVM ASM
- 8. CONCURRENT :-Builtin support for threads , channels There are two programing using Rust 1)Concurrent programming 2) Parallel programming
- 9.
- 10. FEATURES OF RUST Zero – cost abstraction Algebraic data types (enum ) Pattern matching Trait based generics Memory safety without garbage collection
- 11. Zero-cost abstractons (youpay only for what you use):- A zero cost abstraction really means that abstraction doesn’t impose a cost over the optimal implementation of the task it is abstracting. Algebric datatypes(enum):- enum means enumeration data type consisting of a set of named values called elements , member of the type.it does not use in c.
- 12. Pattern matching:- patterns matchingare quite common in rust . Ex:- let x=1; match x { 1 => println! (“one”), 2 => println! (“two”), 3 => println! (“three”), _ => println!(“anything”), } Trait based generic :- trait are like interfaces , combine traits for polymorphism
- 13. Rust package manager Cargo’s goal is to make modern application package management a core value of the Rust programming language. Some common cargo command are: build compile the current project doc build this project’s and its dependencies documentation new create a new cargo project run build and executes 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
- 14. RUST APPLICATIONS Fewapplications written completely in rust: Servo Rocket Redox Habitat
- 15. WHAT TO DOWITH RUST System programming Web Browser (Mozilla Firefox) Distributed storage system (Dropbox) 3d Games Operating system Device drive General tools
- 16. PROGRAM FOR RUST #[deriving(show)] enumDirection { North, East, South, West, } fn reverse(dir : Direction)->Direction { match dir { North => South, East => West, South => North, West => East, } } fn main() { println!(“you should head: { }, reverse(North)); }
- 17. How to compileand run the RUST program Filename extensions:- .rs , .rlib Compile program:- C: user> rustc < filename >.rs Run program:- C: user> rust < filename >.rs
- 18. ADVANTAGES OF RUST Security is it’s biggest advantages Memory safety without garbage collection. High – performance. Provide awesome tools. Allow making mistakes.
- 19. DISADVANTAGES Large binarysize Its almost impossible to run could be unsafe Consumes more memory Unlike many other languages, Rust doesn’t have standard way of accessing database
- 20. CONCLUSION Rust isa promising System programming language. Too young to use for fighting in the wild. Build enterprise class software with more confident. Run at native speed (C/C+ comparable).