## Summary
This PR adds a playground for Red Knot
[Screencast from 2024-08-14
10-33-54.webm](https://github.com/user-attachments/assets/ae81d85f-74a3-4ba6-bb61-4a871b622f05)
Sharing does work 😆 I just forgot to start wrangler.
It supports:
* Multiple files
* Showing the AST
* Showing the tokens
* Sharing
* Persistence to local storage
Future extensions:
* Configuration support: The `pyproject.toml` would *just* be another
file.
* Showing type information on hover
## Blockers
~~Salsa uses `catch_unwind` to break cycles, which Red Knot uses
extensively when inferring types in the standard library.
However, WASM (at least `wasm32-unknown-unknown`) doesn't support
`catch_unwind` today, so the playground always crashes when the type
inference encounters a cycle.~~
~~I created a discussion in the [salsa
zulip](https://salsa.zulipchat.com/#narrow/stream/333573-salsa-3.2E0/topic/WASM.20support)
to see if it would be possible to **not** use catch unwind to break
cycles.~~
~~[Rust tracking issue for WASM catch unwind
support](https://github.com/rust-lang/rust/issues/118168)~~
~~I tried to build the WASM with the nightly compiler option but ran
into problems because wasm-bindgen doesn't support WASM-exceptions. We
could try to write the binding code by hand.~~
~~Another alternative is to use `wasm32-unknown-emscripten` but it's
rather painful to build~~
## Summary
This is prep-work for the Red Knot playground. We'll have two
playgrounds, one for Red Knot and Ruff.
I want to share some components between the two, a "shared" NPM package
in a local workspace is a great fit for that.
I also want to share the dev dependencies and dev scripts. Again, NPM
workspaces are great for that.
This PR also sets up a CI workflow for the playground to prevent
surprises during the release.
## Test Plan
CI, local `npm install`, `npm start`, ...
I verified that the new CI step fails if there's a typescript or
formatting error.
* [Deployment test
run](3890552435)
## Summary
Rome Tools Playground was renamed to Biome Playground. The link was
replaced to the new website.
Resolves#16143
## Test Plan
- Checked the linked is accessible from the README
The docs were out of date, and the new version incorporates some
feedback.
I tried to keep the language concise and the information ordered by how
early you need it, so people can get the relevant information quickly
before jumping into the code.
I did some minor format_dev changes for consistency in the docs.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
This PR adds a [Workers
KV](https://developers.cloudflare.com/workers/runtime-apis/kv/)-based
database to the playground, which enables us to associate shared
snippets with a stable ID, which in turn allows us to generate short
URLs, rather than our existing extremely-long URLs.
For now, the URLs are based on UUID, so they look like
https://play.ruff.rs/a1c40d58-f643-4a3e-bc23-15021e16acef. (This URL
isn't expected to work, as the playground isn't deployed; it's only
included as an example.)
There are no visible changes in the UI here -- you still click the
"Share" button, which copies the link to your URL. There's no
user-visible latency either -- KV is very fast.
For context, with Workers KV, we provision a Workers KV store in our
Cloudflare account (`wrangler kv:namespace create "PLAYGROUND"`), and
then create a Cloudflare Worker that's bound to the KV store via the
`wrangler.toml`:
```toml
name = "db"
main = "src/index.ts"
compatibility_date = "2023-08-07"
kv_namespaces = [
{ binding = "PLAYGROUND", id = "672e16c4fb5e4887845973bf0e9f6021", preview_id = "0a96477e116540e5a6e1eab6d6e7523e" }
]
```
The KV store exists in perpetuity, while the Worker can be updated,
deployed, removed, etc. independently of the KV store. The Worker itself
has unfettered access to the KV store. The Worker is exposed publicly,
and just does some basic verification against the request host.
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## Summary
This PR removes state variables that can be derived, merges related variables into a single state, and generally avoids `null` states.
## Test Plan
I clicked through the playground locally
<!-- How was it tested? -->
