trevor-scheer / compiler-wasm-reproduction

How to install

npm install

How to run in debug mode

# Builds the project and opens it in a new browser tab. Auto-reloads when the project changes.
npm start

How to build in release mode

# Builds the project and places it into the `dist` folder.
npm run build

How to run unit tests

# Runs tests in Firefox
npm test -- --firefox

# Runs tests in Chrome
npm test -- --chrome

# Runs tests in Safari
npm test -- --safari

What does each file do?

• Cargo.toml contains the standard Rust metadata. You put your Rust dependencies in here. You must change this file with your details (name, description, version, authors, categories)

• package.json contains the standard npm metadata. You put your JavaScript dependencies in here. You must change this file with your details (author, name, version)

• webpack.config.js contains the Webpack configuration. You shouldn't need to change this, unless you have very special needs.

• The js folder contains your JavaScript code (index.js is used to hook everything into Webpack, you don't need to change it).

• The src folder contains your Rust code.

• The static folder contains any files that you want copied as-is into the final build. It contains an index.html file which loads the index.js file.

• The tests folder contains your Rust unit tests.

Reproduction notes

Requires wasm-pack

Init:

npm i && npm start

Be patient during builds, they don't take long but they're sometimes deceivingly "done" when they're really not.

The addition or removal of this line in lib.rs will cause the error to appear or disappear:

let mut compiler = ApolloCompiler::new();

ERROR in ./pkg/index_bg.wasm
Module not found: Error: Can't resolve 'env' in '/Users/trevorscheer/Desktop/compiler-wasm-reproduction/pkg'
 @ ./pkg/index_bg.wasm
 @ ./pkg/index.js
 @ ./js/index.js

rustwasm/wasm-bindgen#3500 This thread is very helpful. I followed the instructions from the accepted answer to determine the issue is a usage of Instant::now, but it's happening in a dependency and the tools don't identify which one.