Why Rust is awesome?

DevFest Colombia.dev 2015

Transcript

2. RUST
3. ABOUT ME Giovanny Gongora @Gioyik Website: gioyik.com SPOILER ALERT: I will be hired By Mozilla to work with Developer Relations team
4. BRIEF INTRODUCTION • First inventor: Graydon Hoare (8 years ago) • Mozilla Foundation (~2009) • Zero-cost abstraction • High concurrency support • Memory safety by ownership • Lifetime concept • Servo <3
5. AND THAT IN REAL LIFE…
6. OWNERSHIP
7. SAFETY Problems related to safety cause not only software crash, also security vulnerabilities. • Null pointer deference • Double free • Use-after-free (more pointer problems..)
8. MEMORY MANAGEMENT
9. WHAT DO OTHER LANGUAGES DO? • Most languages with a garbage collector heap- allocate by default • Every value is boxed • There are some possible optimizations that don’t make it true 100% of the time
10. GARBAJE COLLECTION • Computer cannot know the exact timing that each object should be freed • Need of more memory and CPU power • No predictability • Limited concurrency • Large code size
11. STACK
12. STACK
13. STACK
14. HEAP
15. HEAP
16. RUNTIME EFFICIENCY • Managing the memory for the stack is trivial • Managing memory for the heap is non-trivial
17. CONCURRENCY
18. RUST INSIDE OTHER LANGUAGES
19. THE PROBLEM Star ten threads. Inside each thread, count from one to five million. After all then threads are finished, print out ‘done’. • Rust has something called a ‘foreign function interface’, often shortened to ‘FFI’ • Rust has support for FFI in both directions • Let’s try it with examples in Ruby, Python and JavaScript
20. CRATES AND MODULES
21. CRATES AND MODULES When a project starts getting large, it’s considered good software engineering practice to split it up into a bunch of smaller pieces, and then fit them together. • Rust has a module system • A crate is synonymous with a “library” or “package” in other languages • “Cargo” as the name of Rust’s package management tool • Crates can produce an executable or a library depending on the project • Modules allow you to partition your code
22. AND FUNCTIONAL PROGRAMMING?
23. SO, WHAT’S NEXT FOR RUST? • Compiler Plugins • Inline Assembly • No stdlib • Advanced linking • Benchmark Test • … and more, trust me :)
24. PLAY.RUST-LANG.ORG
25. THANKS Giovanny Gongora Why Rust is awesome? @Gioyik Website: gioyik.com