Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Rust meets Mobile
Search
Keith Smiley
November 07, 2022
Programming
0
360
Rust meets Mobile
2022 BazelCon talk about using bazel to build rust libraries for iOS and Android
Keith Smiley
November 07, 2022
Tweet
Share
More Decks by Keith Smiley
See All by Keith Smiley
Lyft iOS tooling infrastructure summary 2022
smileykeith
0
370
Postmortem for switching Lyft's iOS app to Bazel
smileykeith
4
1.5k
Lyft iOS tooling infrastructure summary 2019
smileykeith
2
1.5k
An alternative approach to building & shipping Swift apps
smileykeith
5
1.3k
Embrace Immutability
smileykeith
0
9.5k
Tales of a rewrite
smileykeith
0
710
Swift Thinking
smileykeith
0
12k
Other Decks in Programming
See All in Programming
オレを救った Cline を紹介する
codehex
7
2.8k
React 19アップデートのために必要なこと
uhyo
8
1.6k
CDK開発におけるコーディング規約の運用
yamanashi_ren01
2
260
PHPカンファレンス名古屋2025 タスク分解の試行錯誤〜レビュー負荷を下げるために〜
soichi
1
740
Rails 1.0 のコードで学ぶ find_by* と method_missing の仕組み / Learn how find_by_* and method_missing work in Rails 1.0 code
maimux2x
1
260
AIプログラミング雑キャッチアップ
yuheinakasaka
19
5k
pylint custom ruleで始めるレビュー自動化
shogoujiie
0
160
GoとPHPのインターフェイスの違い
shimabox
2
210
楽しく向き合う例外対応
okutsu
0
720
Django NinjaによるAPI開発の効率化とリプレースの実践
kashewnuts
1
290
良いコードレビューとは
danimal141
7
4.7k
Jasprが凄い話
hyshu
0
180
Featured
See All Featured
Site-Speed That Sticks
csswizardry
4
410
Reflections from 52 weeks, 52 projects
jeffersonlam
348
20k
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
49
2.3k
Designing on Purpose - Digital PM Summit 2013
jponch
117
7.1k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
21
2.5k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
4
380
GitHub's CSS Performance
jonrohan
1030
460k
Producing Creativity
orderedlist
PRO
344
40k
We Have a Design System, Now What?
morganepeng
51
7.4k
Navigating Team Friction
lara
183
15k
Agile that works and the tools we love
rasmusluckow
328
21k
Testing 201, or: Great Expectations
jmmastey
42
7.2k
Transcript
Rust meets Mobile Keith Smiley (he/him) Principal Engineer, Lyft @SmileyKeith
Sharing code on mobile
Why rust?
Rust + bazel
rust_library( name = "foo", srcs = ["foo.rs"], ) swift_library( name
= "main", srcs = ["main.swift"], deps = [":foo"], ) ios_application(...) Shouldn't this work?
--platforms=//:ios_arm64
bazel#7260
platform_mappings
flags: --cpu=arm64-v8a --crosstool_top=//external:android/crosstool //:android_aarch64 --cpu=ios_arm64 --apple_platform_type=ios //:ios_arm64 ...
Undefined symbols for architecture arm64: "___rust_alloc", referenced from: ... "___rust_alloc_error_handler",
referenced from: ... ... rules_rust#1238 / rust#73632
Who does the linking?
How do I use it?
#[no_mangle] pub extern fn print_something_from_rust() { println!("Ferris says hello!"); }
#[no_mangle] pub extern fn get_a_value_from_rust() -> i32 { 42 } extern void print_something_from_rust(void); extern int32_t get_a_value_from_rust(void);
#[no_mangle] pub extern "system" fn Java_com_example_androidapp_JniShim_getValue() -> i32 { get_a_value_from_rust()
} package com.example.androidapp; public class JniShim { public static native int getValue(); }
dtolnay/cxx rust-lang/rust-bindgen
Future areas of improvement
Developer Experience
Future rust mobile support
Was it worth it?
keith/bazel-rust-mobile-demo
- bazel#11454 - bazel#15041 - bazel#15248 - bazel#15462 - bazel#7260
- cargo-raze#484 - cargo-raze#489 - rules_rust#1186 - rules_rust#1238 - rules_rust#1259 - rules_rust#1271 - rules_rust#1276 - rules_rust#1290 - rules_rust#1304 - rules_rust#1362 - rules_rust#1372 - rules_rust#1401 - rules_rust#1462 - rules_rust#1541 - rules_rust#1545 - rules_rust#1546 - rules_rust#1573 - rules_rust#1576 - rust#73632
Thank you! twitter.com/SmileyKeith