Support for Deno

[binyamin]

Note: Coming from parcel-bundler/lightningcss#219

I haven't been able to get this module working for Deno

• The source uses typescript syntax (import type) with a .js extension. Deno can't read it properly
• The NPM package uses CommonJS (require), but Deno uses ESM (import)
• CDNs
  • unpkg.com pulls from NPM, so we get the same issue.
  • esm.sh & skypack.dev both transform the CommonJS to ESM. Unfortunately, they don't serve WASM files with the right content-type, so Deno can't process it normally. The way Deno does process it, it throws an error during compilation. Something about a mismatched "magic word".

[mischnic]

This would be nice, and fixing this would also enable importing it directly in browsers via the CDNs.

We'd just need a pure ESM version of https://unpkg.com/browse/@parcel/source-map@2.0.5/dist/wasm.js and its dependencies. And it would have to use wasm-bindings-web.js

The source uses typescript syntax (import type) with a .js extension

That's actually Flow syntax.

[DeMoorJasper]

Not sure if we should ship an extra large bundle to support this, I think you can already load it using esm.sh, something like: https://esm.sh/@parcel/source-map@2.0.5/dist/wasm.js

[mischnic]

As already mentioned, that doesn't work for other reasons:

[DeMoorJasper]

That's not up to us to fix that right? Seems like an esm.sh issue?

But I guess it's not a big deal for us to also ship esm as the js size is so small anyway. Which should be easy to fix. Might look into it tonight