WebAssembly class

[sakex]

Objective

Add a chapter to cover WebAssembly in Comprehensive Rust 🦀.

Design Goals

WASM can be thought of both as a compilation target and a platform. Therefore, we want to add a simple entry into “Interoperability > With the web” and a more exhaustive “WebAssembly” class. WASM’s main appeal is the development of applications for the web, so we’ll want to have a setup with a web page that can load the student’s WASM code. Exercises should be visual.

Requirements

• [x] A template to run wasm commit
• [ ] Create a new entry Interoperability: With the Web It should reference the new course for an in-depth dive

Create a new class with the following chapters:

• [x] WebAssembly intro commit
• [x] Installation (wasm-pack) commit, for now in webassembly.md
• [x] Expose a method with wasm-bindgen commit
• [x] Error handling commit
• [x] Compile and Load wasm module in Javascript, call the method from previous point commit
• [x] Pass user-defined types from Rust to JS commit
• [x] js_sys commit
• [x] Limitations and workarounds
  • [x] Prevent garbage collection commit
  • [x] Threading
  • [x] Random
  • [x] Time
  • [x] Closures
• [x] Pass user-defined types from JS to Rust commit
• [x] Async commit
• [ ] Exercises (TBD)

[mgeisler]

Great, let's flesh out the details a bit in the description and make sure to link it from #32.

[sakex]

Exercise Ideas

Game of life

We provide the rendering logic in Javascript, the student has to implement the game logic in Rust.

Real time image processing

From javascript, get the live camera buffer, pass it to rust for image processing. For instance, grayscale, gaussian blur, invert the image, etc.

[sakex]

Working on this branch