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100dfd7dab
Summary: Compiler pass tabs are bolded when their contents have changed from previous passes; but currently the HIR and JS tabs are unbolded. Conceptually they should be, if HIR is "changed" from the source code and JS is "changed" from the last IR phase.
In addition, the "show diff" option doesn't make a ton of sense for tabs that either aren't part of the pipeline (EnvironmentConfig) or (maybe more controversially, but imo) passes where the IR representation has changed since the last pass (BuildReactiveFunctions). This diff drops the button from those tabs.
ghstack-source-id: 1d67e2f371
Pull Request resolved: https://github.com/facebook/react/pull/30151
React Compiler Playground
An interactive playground to demonstrate, test, and have fun with React Compiler.
Setup
# Build React Compiler from source and install Playground dependencies.
$ yarn
# Or similarly
$ npm install
Development
# Start the local development server with
$ yarn dev
# Or
$ npm run dev
# Rerun the following (in a separate terminal window) when React Compiler
# is changed locally to keep Playground in sync.
$ yarn
Deployment
This project has been deployed using Vercel. Vercel does the exact same thing as we would
locally, by running yarn at the install step in the Playground directory to build
React Compiler from source and symlink it as its dependency.
This means that Playground is automatically deployed on every push and pull requests will reflect
the behaviors of React Compiler of that commit.